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Diffstat (limited to 'gnu/packages/patches/icecat-update-graphite2.patch')
| -rw-r--r-- | gnu/packages/patches/icecat-update-graphite2.patch | 9988 |
1 files changed, 0 insertions, 9988 deletions
diff --git a/gnu/packages/patches/icecat-update-graphite2.patch b/gnu/packages/patches/icecat-update-graphite2.patch deleted file mode 100644 index af2c47bef7..0000000000 --- a/gnu/packages/patches/icecat-update-graphite2.patch +++ /dev/null @@ -1,9988 +0,0 @@ -Copied from upstream: -https://hg.mozilla.org/releases/mozilla-esr38/raw-rev/ed4d2ce6046b - -# HG changeset patch -# User Jonathan Kew <jkew@mozilla.com> -# Date 1455126706 0 -# Node ID ed4d2ce6046b20287fd13c548dd3982fe1a24875 -# Parent 78d3632feb7b6f6046025352630bd4f5365f3106 -Bug 1246093 - Update graphite2 library to latest release on esr38. r=me,a=sledru+lizzard - -diff --git a/gfx/graphite2/COPYING b/gfx/graphite2/COPYING -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/COPYING -@@ -0,0 +1,26 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2010, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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See the GNU -+ Lesser General Public License for more details. -+ -+ You should have received a copy of the GNU Lesser General Public -+ License along with this library; if not, write to the Free Software -+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -+ -+Also add information on how to contact you by electronic and paper mail. -+ -+You should also get your employer (if you work as a programmer) or -+your school, if any, to sign a "copyright disclaimer" for the library, -+if necessary. Here is a sample; alter the names: -+ -+ Yoyodyne, Inc., hereby disclaims all copyright interest in the -+ library `Frob' (a library for tweaking knobs) written by James -+ Random Hacker. -+ -+ <signature of Ty Coon>, 1 April 1990 -+ Ty Coon, President of Vice -+ -+That's all there is to it! -+ -+ -diff --git a/gfx/graphite2/README.md b/gfx/graphite2/README.md -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/README.md -@@ -0,0 +1,32 @@ -+# Graphite engine -+ -+## What is Graphite? -+ -+Graphite is a system that can be used to create “smart fonts” capable of displaying writing systems with various complex behaviors. A smart font contains not only letter shapes but also additional instructions indicating how to combine and position the letters in complex ways. -+ -+Graphite was primarily developed to provide the flexibility needed for minority languages which often need to be written according to slightly different rules than well-known languages that use the same script. -+ -+Examples of complex script behaviors Graphite can handle include: -+ -+* contextual shaping -+* ligatures -+* reordering -+* split glyphs -+* bidirectionality -+* stacking diacritics -+* complex positioning -+* shape aware kerning -+* automatic diacritic collision avoidance -+ -+See [examples of scripts with complex rendering](http://scripts.sil.org/CmplxRndExamples). -+ -+## Graphite system overview -+The Graphite system consists of: -+ -+* A rule-based programming language [Graphite Description Language](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_devFont#gdl) (GDL) that can be used to describe the behavior of a writing system -+* A compiler for that language -+* A rendering engine that can serve as the layout component of a text-processing application -+ -+Graphite renders TrueType fonts that have been extended by means of compiling a GDL program. -+ -+Further technical information is available on the [Graphite technical overview](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_techAbout) page. -diff --git a/gfx/graphite2/README.mozilla b/gfx/graphite2/README.mozilla ---- a/gfx/graphite2/README.mozilla -+++ b/gfx/graphite2/README.mozilla -@@ -1,6 +1,7 @@ --This directory contains the Graphite2 library from http://hg.palaso.org/graphitedev -- --Current version derived from upstream changeset 1efd96aeade9 -- -+This directory contains the Graphite2 library release 1.3.5 from -+https://github.com/silnrsi/graphite/releases/download/1.3.5/graphite2-minimal-1.3.5.tgz - See gfx/graphite2/moz-gr-update.sh for update procedure. - -+Also includes two post-1.3.5 fixes: -+a8b3ac2aed0eb132cd80efe7de88f8153e73c829 -+e569e28d83491fedb31b9220493f3c07f6ec6d80 -diff --git a/gfx/graphite2/include/graphite2/Font.h b/gfx/graphite2/include/graphite2/Font.h ---- a/gfx/graphite2/include/graphite2/Font.h -+++ b/gfx/graphite2/include/graphite2/Font.h -@@ -24,18 +24,18 @@ - General Public License, as published by the Free Software Foundation, - either version 2 of the License or (at your option) any later version. - */ - #pragma once - - #include "graphite2/Types.h" - - #define GR2_VERSION_MAJOR 1 --#define GR2_VERSION_MINOR 2 --#define GR2_VERSION_BUGFIX 4 -+#define GR2_VERSION_MINOR 3 -+#define GR2_VERSION_BUGFIX 5 - - #ifdef __cplusplus - extern "C" - { - #endif - - typedef struct gr_face gr_face; - typedef struct gr_font gr_font; -diff --git a/gfx/graphite2/include/graphite2/Segment.h b/gfx/graphite2/include/graphite2/Segment.h ---- a/gfx/graphite2/include/graphite2/Segment.h -+++ b/gfx/graphite2/include/graphite2/Segment.h -@@ -115,35 +115,68 @@ enum gr_attrCode { - gr_slatJStretch, - /// Amount this slot can shrink (not implemented) - gr_slatJShrink, - /// Granularity by which this slot can stretch or shrink (not implemented) - gr_slatJStep, - /// Justification weight for this glyph (not implemented) - gr_slatJWeight, - /// Amount this slot mush shrink or stretch in design units -- gr_slatJWidth, -+ gr_slatJWidth = 29, - /// SubSegment split point - gr_slatSegSplit = gr_slatJStretch + 29, - /// User defined attribute, see subattr for user attr number - gr_slatUserDefn, - /// Bidi level -- gr_slatBidiLevel, -+ gr_slatBidiLevel = 56, -+ /// Collision flags -+ gr_slatColFlags, -+ /// Collision constraint rectangle left (bl.x) -+ gr_slatColLimitblx, -+ /// Collision constraint rectangle lower (bl.y) -+ gr_slatColLimitbly, -+ /// Collision constraint rectangle right (tr.x) -+ gr_slatColLimittrx, -+ /// Collision constraint rectangle upper (tr.y) -+ gr_slatColLimittry, -+ /// Collision shift x -+ gr_slatColShiftx, -+ /// Collision shift y -+ gr_slatColShifty, -+ /// Collision margin -+ gr_slatColMargin, -+ /// Margin cost weight -+ gr_slatColMarginWt, -+ // Additional glyph that excludes movement near this one: -+ gr_slatColExclGlyph, -+ gr_slatColExclOffx, -+ gr_slatColExclOffy, -+ // Collision sequence enforcing attributes: -+ gr_slatSeqClass, -+ gr_slatSeqProxClass, -+ gr_slatSeqOrder, -+ gr_slatSeqAboveXoff, -+ gr_slatSeqAboveWt, -+ gr_slatSeqBelowXlim, -+ gr_slatSeqBelowWt, -+ gr_slatSeqValignHt, -+ gr_slatSeqValignWt, - - /// not implemented - gr_slatMax, - /// not implemented - gr_slatNoEffect = gr_slatMax + 1 - }; - - enum gr_bidirtl { - /// Underlying paragraph direction is RTL - gr_rtl = 1, - /// Set this to not run the bidi pass internally, even if the font asks for it. -- /// This presumes that the segment is in a single direction. -+ /// This presumes that the segment is in a single direction. Most of the time -+ /// this bit should be set unless you know you are passing full paragraphs of text. - gr_nobidi = 2, - /// Disable auto mirroring for rtl text - gr_nomirror = 4 - }; - - typedef struct gr_char_info gr_char_info; - typedef struct gr_segment gr_segment; - typedef struct gr_slot gr_slot; -diff --git a/gfx/graphite2/include/graphite2/Types.h b/gfx/graphite2/include/graphite2/Types.h ---- a/gfx/graphite2/include/graphite2/Types.h -+++ b/gfx/graphite2/include/graphite2/Types.h -@@ -53,17 +53,20 @@ enum gr_encform { - #else - #if defined __GNUC__ - #define GR2_API __attribute__((dllimport)) - #else - #define GR2_API __declspec(dllimport) - #endif - #endif - #define GR2_LOCAL -+#elif __GNUC__ >= 4 -+ #if defined GRAPHITE2_STATIC -+ #define GR2_API __attribute__ ((visibility("hidden"))) -+ #else -+ #define GR2_API __attribute__ ((visibility("default"))) -+ #endif -+ #define GR2_LOCAL __attribute__ ((visibility("hidden"))) - #else -- #if __GNUC__ >= 4 -- #define GR2_API __attribute__ ((visibility("default"))) -- #define GR2_LOCAL __attribute__ ((visibility("hidden"))) -- #else -- #define GR2_API -- #define GR2_LOCAL -- #endif -+ #define GR2_API -+ #define GR2_LOCAL - #endif -+ -diff --git a/gfx/graphite2/moz-gr-update.sh b/gfx/graphite2/moz-gr-update.sh ---- a/gfx/graphite2/moz-gr-update.sh -+++ b/gfx/graphite2/moz-gr-update.sh -@@ -1,35 +1,49 @@ - #!/bin/bash - - # Script used to update the Graphite2 library in the mozilla source tree - - # This script lives in gfx/graphite2, along with the library source, - # but must be run from the top level of the mozilla-central tree. - --# It expects to find a checkout of the graphite2 tree in a directory "graphitedev" --# alongside the current mozilla tree that is to be updated. --# Expect error messages from the copy commands if this is not found! -+# Run as -+# -+# ./gfx/graphite2/moz-gr-update.sh RELEASE -+# -+# where RELEASE is the graphite2 release to be used, e.g. "1.3.4". - --# copy the source and headers --cp -R ../graphitedev/src/* gfx/graphite2/src --cp ../graphitedev/include/graphite2/* gfx/graphite2/include/graphite2 -+RELEASE=$1 - --# record the upstream changeset that was used --CHANGESET=$(cd ../graphitedev/ && hg log | head -n 1 | cut -d : -f 1,3 | sed -e 's/:/ /') --echo "This directory contains the Graphite2 library from http://hg.palaso.org/graphitedev\n" > gfx/graphite2/README.mozilla --echo "Current version derived from upstream" $CHANGESET >> gfx/graphite2/README.mozilla --echo "\nSee" $0 "for update procedure.\n" >> gfx/graphite2/README.mozilla -+if [ "x$RELEASE" == "x" ] -+then -+ echo "Must provide the version number to be used." -+ exit 1 -+fi -+ -+TARBALL="https://github.com/silnrsi/graphite/releases/download/$RELEASE/graphite2-minimal-$RELEASE.tgz" -+ -+foo=`basename $0` -+TMPFILE=`mktemp -t ${foo}` || exit 1 -+ -+curl -L "$TARBALL" -o "$TMPFILE" -+tar -x -z -C gfx/graphite2/ --strip-components 1 -f "$TMPFILE" || exit 1 -+rm "$TMPFILE" -+ -+echo "This directory contains the Graphite2 library release $RELEASE from" > gfx/graphite2/README.mozilla -+echo "$TARBALL" >> gfx/graphite2/README.mozilla -+echo "" -+echo "See" $0 "for update procedure." >> gfx/graphite2/README.mozilla - - # fix up includes because of bug 721839 (cstdio) and bug 803066 (Windows.h) --find gfx/graphite2/ -name "*.cpp" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; --find gfx/graphite2/ -name "*.h" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; -+#find gfx/graphite2/ -name "*.cpp" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; -+#find gfx/graphite2/ -name "*.h" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; - - # summarize what's been touched --echo Updated to $CHANGESET. -+echo Updated to $RELEASE. - echo Here is what changed in the gfx/graphite2 directory: - echo - - hg stat gfx/graphite2 - - echo - echo If gfx/graphite2/src/files.mk has changed, please make corresponding - echo changes to gfx/graphite2/src/moz.build -diff --git a/gfx/graphite2/src/CMakeLists.txt b/gfx/graphite2/src/CMakeLists.txt ---- a/gfx/graphite2/src/CMakeLists.txt -+++ b/gfx/graphite2/src/CMakeLists.txt -@@ -69,29 +69,31 @@ add_library(graphite2 SHARED - ${GRAPHITE2_VM_TYPE}_machine.cpp - gr_char_info.cpp - gr_features.cpp - gr_face.cpp - gr_font.cpp - gr_logging.cpp - gr_segment.cpp - gr_slot.cpp -- Bidi.cpp - CachedFace.cpp - CmapCache.cpp - Code.cpp -+ Collider.cpp -+ Decompressor.cpp - Face.cpp - FeatureMap.cpp - Font.cpp - GlyphFace.cpp - GlyphCache.cpp -+ Intervals.cpp - Justifier.cpp - NameTable.cpp - Pass.cpp -- Rule.cpp -+ Position.cpp - Segment.cpp - Silf.cpp - Slot.cpp - Sparse.cpp - TtfUtil.cpp - UtfCodec.cpp - ${FILEFACE} - ${SEGCACHE} -@@ -99,27 +101,28 @@ add_library(graphite2 SHARED - - set_target_properties(graphite2 PROPERTIES PUBLIC_HEADER "${GRAPHITE_HEADERS}" - SOVERSION ${GRAPHITE_SO_VERSION} - VERSION ${GRAPHITE_VERSION} - LT_VERSION_CURRENT ${GRAPHITE_API_CURRENT} - LT_VERSION_REVISION ${GRAPHITE_API_REVISION} - LT_VERSION_AGE ${GRAPHITE_API_AGE}) - --if (${CMAKE_BUILD_TYPE} STREQUAL "ClangASN") -- set(GRAPHITE_LINK_FLAGS "-fsanitize=address") --else (${CMAKE_BUILD_TYPE} STREQUAL "ClangASN") -- set(GRAPHITE_LINK_FLAGS "") --endif (${CMAKE_BUILD_TYPE} STREQUAL "ClangASN") -- - if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux") - set_target_properties(graphite2 PROPERTIES - COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wendif-labels -Wshadow -Wctor-dtor-privacy -Wnon-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector" - LINK_FLAGS "-nodefaultlibs ${GRAPHITE_LINK_FLAGS}" - LINKER_LANGUAGE C) -+ if (CMAKE_COMPILER_IS_GNUCXX) -+ add_definitions(-Wdouble-promotion) -+ endif (CMAKE_COMPILER_IS_GNUCXX) -+ message(STATUS "Compiler ID is: ${CMAKE_CXX_COMPILER_ID}") -+ if (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang") -+ add_definitions(-Wimplicit-fallthrough) -+ endif (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang") - if (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*") - target_link_libraries(graphite2 kernel32 msvcr90 mingw32 gcc user32) - else (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*") - if (GRAPHITE2_ASAN) - target_link_libraries(graphite2 c gcc_s) - else (GRAPHITE2_ASAN) - target_link_libraries(graphite2 c gcc) - endif (GRAPHITE2_ASAN) -@@ -127,17 +130,17 @@ if (${CMAKE_SYSTEM_NAME} STREQUAL "Linu - nolib_test(stdc++ $<TARGET_SONAME_FILE:graphite2>) - endif (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*") - set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "") - CREATE_LIBTOOL_FILE(graphite2 "/lib${LIB_SUFFIX}") - endif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux") - - if (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") - set_target_properties(graphite2 PROPERTIES -- COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wendif-labels -Wshadow -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector" -+ COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wimplicit-fallthrough -Wendif-labels -Wshadow -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector" - LINK_FLAGS "-nodefaultlibs" - LINKER_LANGUAGE C) - target_link_libraries(graphite2 c) - include(Graphite) - nolib_test(stdc++ $<TARGET_SONAME_FILE:graphite2>) - set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "") - CREATE_LIBTOOL_FILE(graphite2 "/lib${LIB_SUFFIX}") - endif (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") -diff --git a/gfx/graphite2/src/CmapCache.cpp b/gfx/graphite2/src/CmapCache.cpp ---- a/gfx/graphite2/src/CmapCache.cpp -+++ b/gfx/graphite2/src/CmapCache.cpp -@@ -33,31 +33,31 @@ of the License or (at your option) any l - - - using namespace graphite2; - - const void * bmp_subtable(const Face::Table & cmap) - { - const void * stbl; - if (!cmap.size()) return 0; -- if (TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 1, cmap.size())) -- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 3, cmap.size())) -- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 2, cmap.size())) -- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 1, cmap.size())) -- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 0, cmap.size()))) -+ if (TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 1, cmap.size()), cmap.size()) -+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 3, cmap.size()), cmap.size()) -+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 2, cmap.size()), cmap.size()) -+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 1, cmap.size()), cmap.size()) -+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 0, cmap.size()), cmap.size())) - return stbl; - return 0; - } - - const void * smp_subtable(const Face::Table & cmap) - { - const void * stbl; - if (!cmap.size()) return 0; -- if (TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 10, cmap.size())) -- || TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 4, cmap.size()))) -+ if (TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 10, cmap.size()), cmap.size()) -+ || TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 4, cmap.size()), cmap.size())) - return stbl; - return 0; - } - - template <unsigned int (*NextCodePoint)(const void *, unsigned int, int *), - uint16 (*LookupCodePoint)(const void *, unsigned int, int)> - bool cache_subtable(uint16 * blocks[], const void * cst, const unsigned int limit) - { -diff --git a/gfx/graphite2/src/Code.cpp b/gfx/graphite2/src/Code.cpp ---- a/gfx/graphite2/src/Code.cpp -+++ b/gfx/graphite2/src/Code.cpp -@@ -37,17 +37,17 @@ of the License or (at your option) any l - #include "inc/Code.h" - #include "inc/Face.h" - #include "inc/GlyphFace.h" - #include "inc/GlyphCache.h" - #include "inc/Machine.h" - #include "inc/Rule.h" - #include "inc/Silf.h" - --#include <stdio.h> -+#include <cstdio> - - #ifdef NDEBUG - #ifdef __GNUC__ - #pragma GCC diagnostic ignored "-Wunused-parameter" - #endif - #endif - - -@@ -84,112 +84,119 @@ public: - struct limits; - struct analysis - { - uint8 slotref; - context contexts[256]; - byte max_ref; - - analysis() : slotref(0), max_ref(0) {}; -- void set_ref(int index) throw(); -+ void set_ref(int index, bool incinsert=false) throw(); -+ void set_noref(int index) throw(); - void set_changed(int index) throw(); - - }; - -- decoder(const limits & lims, Code &code) throw(); -+ decoder(limits & lims, Code &code, enum passtype pt) throw(); - - bool load(const byte * bc_begin, const byte * bc_end); - void apply_analysis(instr * const code, instr * code_end); - byte max_ref() { return _analysis.max_ref; } - int pre_context() const { return _pre_context; } - - private: - opcode fetch_opcode(const byte * bc); - void analyse_opcode(const opcode, const int8 * const dp) throw(); - bool emit_opcode(opcode opc, const byte * & bc); - bool validate_opcode(const opcode opc, const byte * const bc); - bool valid_upto(const uint16 limit, const uint16 x) const throw(); -+ bool test_context() const throw(); - void failure(const status_t s) const throw() { _code.failure(s); } - - Code & _code; - int _pre_context; - uint16 _rule_length; - instr * _instr; - byte * _data; -- const limits & _max; -+ limits & _max; - analysis _analysis; -+ enum passtype _passtype; -+ int _stack_depth; -+ bool _in_ctxt_item; - }; - - - struct Machine::Code::decoder::limits - { -- const byte * const bytecode; -+ const byte * bytecode; - const uint8 pre_context; - const uint16 rule_length, - classes, - glyf_attrs, - features; - const byte attrid[gr_slatMax]; - }; - --inline Machine::Code::decoder::decoder(const limits & lims, Code &code) throw() -+inline Machine::Code::decoder::decoder(limits & lims, Code &code, enum passtype pt) throw() - : _code(code), - _pre_context(code._constraint ? 0 : lims.pre_context), - _rule_length(code._constraint ? 1 : lims.rule_length), -- _instr(code._code), _data(code._data), _max(lims) -+ _instr(code._code), _data(code._data), _max(lims), _passtype(pt), -+ _stack_depth(0), -+ _in_ctxt_item(false) - { } - - - - Machine::Code::Code(bool is_constraint, const byte * bytecode_begin, const byte * const bytecode_end, -- uint8 pre_context, uint16 rule_length, const Silf & silf, const Face & face) -+ uint8 pre_context, uint16 rule_length, const Silf & silf, const Face & face, -+ enum passtype pt, byte * * const _out) - : _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0), _status(loaded), -- _constraint(is_constraint), _modify(false), _delete(false), _own(true) -+ _constraint(is_constraint), _modify(false), _delete(false), _own(_out==0) - { - #ifdef GRAPHITE2_TELEMETRY - telemetry::category _code_cat(face.tele.code); - #endif - assert(bytecode_begin != 0); - if (bytecode_begin == bytecode_end) - { -- ::new (this) Code(); -+ // ::new (this) Code(); - return; - } - assert(bytecode_end > bytecode_begin); - const opcode_t * op_to_fn = Machine::getOpcodeTable(); - -- // Allocate code and dat target buffers, these sizes are a worst case -+ // Allocate code and data target buffers, these sizes are a worst case - // estimate. Once we know their real sizes the we'll shrink them. -- _code = static_cast<instr *>(malloc((bytecode_end - bytecode_begin) -- * sizeof(instr))); -- _data = static_cast<byte *>(malloc((bytecode_end - bytecode_begin) -- * sizeof(byte))); -+ if (_out) _code = reinterpret_cast<instr *>(*_out); -+ else _code = static_cast<instr *>(malloc(estimateCodeDataOut(bytecode_end-bytecode_begin))); -+ _data = reinterpret_cast<byte *>(_code + (bytecode_end - bytecode_begin)); - - if (!_code || !_data) { - failure(alloc_failed); - return; - } - -- const decoder::limits lims = { -+ decoder::limits lims = { - bytecode_end, - pre_context, - rule_length, - silf.numClasses(), - face.glyphs().numAttrs(), - face.numFeatures(), - {1,1,1,1,1,1,1,1, - 1,1,1,1,1,1,1,255, - 1,1,1,1,1,1,1,1, - 1,1,1,1,1,1,0,0, - 0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0, silf.numUser()} - }; - -- decoder dec(lims, *this); -+ decoder dec(lims, *this, pt); - if(!dec.load(bytecode_begin, bytecode_end)) - return; - - // Is this an empty program? - if (_instr_count == 0) - { - release_buffers(); - ::new (this) Code(); -@@ -204,20 +211,25 @@ Machine::Code::Code(bool is_constraint, - - assert((_constraint && immutable()) || !_constraint); - dec.apply_analysis(_code, _code + _instr_count); - _max_ref = dec.max_ref(); - - // Now we know exactly how much code and data the program really needs - // realloc the buffers to exactly the right size so we don't waste any - // memory. -- assert((bytecode_end - bytecode_begin) >= std::ptrdiff_t(_instr_count)); -- assert((bytecode_end - bytecode_begin) >= std::ptrdiff_t(_data_size)); -- _code = static_cast<instr *>(realloc(_code, (_instr_count+1)*sizeof(instr))); -- _data = static_cast<byte *>(realloc(_data, _data_size*sizeof(byte))); -+ assert((bytecode_end - bytecode_begin) >= ptrdiff_t(_instr_count)); -+ assert((bytecode_end - bytecode_begin) >= ptrdiff_t(_data_size)); -+ memmove(_code + (_instr_count+1), _data, _data_size*sizeof(byte)); -+ size_t const total_sz = ((_instr_count+1) + (_data_size + sizeof(instr)-1)/sizeof(instr))*sizeof(instr); -+ if (_out) -+ *_out += total_sz; -+ else -+ _code = static_cast<instr *>(realloc(_code, total_sz)); -+ _data = reinterpret_cast<byte *>(_code + (_instr_count+1)); - - if (!_code) - { - failure(alloc_failed); - return; - } - - // Make this RET_ZERO, we should never reach this but just in case ... -@@ -232,16 +244,17 @@ Machine::Code::~Code() throw () - { - if (_own) - release_buffers(); - } - - - bool Machine::Code::decoder::load(const byte * bc, const byte * bc_end) - { -+ _max.bytecode = bc_end; - while (bc < bc_end) - { - const opcode opc = fetch_opcode(bc++); - if (opc == vm::MAX_OPCODE) - return false; - - analyse_opcode(opc, reinterpret_cast<const int8 *>(bc)); - -@@ -261,141 +274,194 @@ opcode Machine::Code::decoder::fetch_opc - - // Do some basic sanity checks based on what we know about the opcode - if (!validate_opcode(opc, bc)) return MAX_OPCODE; - - // And check it's arguments as far as possible - switch (opc) - { - case NOP : -+ break; - case PUSH_BYTE : - case PUSH_BYTEU : - case PUSH_SHORT : - case PUSH_SHORTU : - case PUSH_LONG : -+ ++_stack_depth; -+ break; - case ADD : - case SUB : - case MUL : - case DIV : - case MIN_ : - case MAX_ : -- case NEG : -- case TRUNC8 : -- case TRUNC16 : -- case COND : - case AND : - case OR : -- case NOT : - case EQUAL : - case NOT_EQ : - case LESS : - case GTR : - case LESS_EQ : - case GTR_EQ : -+ case BITOR : -+ case BITAND : -+ if (--_stack_depth <= 0) -+ failure(underfull_stack); -+ break; -+ case NEG : -+ case TRUNC8 : -+ case TRUNC16 : -+ case NOT : -+ case BITNOT : -+ case BITSET : -+ if (_stack_depth <= 0) -+ failure(underfull_stack); -+ break; -+ case COND : -+ _stack_depth -= 2; -+ if (_stack_depth <= 0) -+ failure(underfull_stack); - break; - case NEXT : - case NEXT_N : // runtime checked - case COPY_NEXT : -+ test_context(); - ++_pre_context; - break; - case PUT_GLYPH_8BIT_OBS : - valid_upto(_max.classes, bc[0]); -+ test_context(); - break; - case PUT_SUBS_8BIT_OBS : - valid_upto(_rule_length, _pre_context + int8(bc[0])); - valid_upto(_max.classes, bc[1]); - valid_upto(_max.classes, bc[2]); -+ test_context(); - break; - case PUT_COPY : - valid_upto(_rule_length, _pre_context + int8(bc[0])); -+ test_context(); - break; - case INSERT : -- --_pre_context; -+ if (_passtype >= PASS_TYPE_POSITIONING) -+ failure(invalid_opcode); -+ else -+ --_pre_context; - break; - case DELETE : -+ if (_passtype >= PASS_TYPE_POSITIONING) -+ failure(invalid_opcode); -+ test_context(); - break; - case ASSOC : - for (uint8 num = bc[0]; num; --num) - valid_upto(_rule_length, _pre_context + int8(bc[num])); -+ test_context(); - break; - case CNTXT_ITEM : - valid_upto(_max.rule_length, _max.pre_context + int8(bc[0])); -- if (bc + 2 + bc[1] >= _max.bytecode) failure(jump_past_end); -- if (_pre_context != 0) failure(nested_context_item); -+ if (bc + 2 + bc[1] >= _max.bytecode) failure(jump_past_end); -+ if (_in_ctxt_item) failure(nested_context_item); - break; - case ATTR_SET : - case ATTR_ADD : - case ATTR_SUB : - case ATTR_SET_SLOT : -+ if (--_stack_depth < 0) -+ failure(underfull_stack); - valid_upto(gr_slatMax, bc[0]); -+ test_context(); - break; - case IATTR_SET_SLOT : -+ if (--_stack_depth < 0) -+ failure(underfull_stack); - if (valid_upto(gr_slatMax, bc[0])) - valid_upto(_max.attrid[bc[0]], bc[1]); -+ test_context(); - break; - case PUSH_SLOT_ATTR : -+ ++_stack_depth; - valid_upto(gr_slatMax, bc[0]); - valid_upto(_rule_length, _pre_context + int8(bc[1])); - break; - case PUSH_GLYPH_ATTR_OBS : -+ ++_stack_depth; - valid_upto(_max.glyf_attrs, bc[0]); - valid_upto(_rule_length, _pre_context + int8(bc[1])); - break; - case PUSH_GLYPH_METRIC : -+ ++_stack_depth; - valid_upto(kgmetDescent, bc[0]); - valid_upto(_rule_length, _pre_context + int8(bc[1])); - // level: dp[2] no check necessary - break; - case PUSH_FEAT : -+ ++_stack_depth; - valid_upto(_max.features, bc[0]); - valid_upto(_rule_length, _pre_context + int8(bc[1])); - break; - case PUSH_ATT_TO_GATTR_OBS : -+ ++_stack_depth; - valid_upto(_max.glyf_attrs, bc[0]); - valid_upto(_rule_length, _pre_context + int8(bc[1])); - break; - case PUSH_ATT_TO_GLYPH_METRIC : -+ ++_stack_depth; - valid_upto(kgmetDescent, bc[0]); - valid_upto(_rule_length, _pre_context + int8(bc[1])); - // level: dp[2] no check necessary - break; - case PUSH_ISLOT_ATTR : -+ ++_stack_depth; - if (valid_upto(gr_slatMax, bc[0])) - { - valid_upto(_rule_length, _pre_context + int8(bc[1])); - valid_upto(_max.attrid[bc[0]], bc[2]); - } - break; - case PUSH_IGLYPH_ATTR :// not implemented -+ ++_stack_depth; -+ break; - case POP_RET : -+ if (--_stack_depth < 0) -+ failure(underfull_stack); -+ GR_FALLTHROUGH; -+ // no break - case RET_ZERO : - case RET_TRUE : - break; - case IATTR_SET : - case IATTR_ADD : - case IATTR_SUB : -+ if (--_stack_depth < 0) -+ failure(underfull_stack); - if (valid_upto(gr_slatMax, bc[0])) - valid_upto(_max.attrid[bc[0]], bc[1]); -+ test_context(); - break; - case PUSH_PROC_STATE : // dummy: dp[0] no check necessary - case PUSH_VERSION : -+ ++_stack_depth; - break; - case PUT_SUBS : - valid_upto(_rule_length, _pre_context + int8(bc[0])); - valid_upto(_max.classes, uint16(bc[1]<< 8) | bc[2]); - valid_upto(_max.classes, uint16(bc[3]<< 8) | bc[4]); -+ test_context(); - break; - case PUT_SUBS2 : // not implemented - case PUT_SUBS3 : // not implemented - break; - case PUT_GLYPH : - valid_upto(_max.classes, uint16(bc[0]<< 8) | bc[1]); -+ test_context(); - break; - case PUSH_GLYPH_ATTR : - case PUSH_ATT_TO_GLYPH_ATTR : -+ ++_stack_depth; - valid_upto(_max.glyf_attrs, uint16(bc[0]<< 8) | bc[1]); - valid_upto(_rule_length, _pre_context + int8(bc[2])); - break; - default: - failure(invalid_opcode); - break; - } - -@@ -410,62 +476,77 @@ void Machine::Code::decoder::analyse_opc - switch (opc) - { - case DELETE : - _code._delete = true; - break; - case PUT_GLYPH_8BIT_OBS : - case PUT_GLYPH : - _code._modify = true; -- _analysis.set_changed(_analysis.slotref); -+ _analysis.set_changed(0); -+ break; -+ case ATTR_SET : -+ case ATTR_ADD : -+ case ATTR_SET_SLOT : -+ case IATTR_SET_SLOT : -+ case IATTR_SET : -+ case IATTR_ADD : -+ case IATTR_SUB : -+ _analysis.set_noref(0); - break; - case NEXT : - case COPY_NEXT : - if (!_analysis.contexts[_analysis.slotref].flags.inserted) - ++_analysis.slotref; - _analysis.contexts[_analysis.slotref] = context(_code._instr_count+1); -- if (_analysis.slotref > _analysis.max_ref) _analysis.max_ref = _analysis.slotref; -+ // if (_analysis.slotref > _analysis.max_ref) _analysis.max_ref = _analysis.slotref; - break; - case INSERT : - _analysis.contexts[_analysis.slotref].flags.inserted = true; - _code._modify = true; - break; - case PUT_SUBS_8BIT_OBS : // slotref on 1st parameter - case PUT_SUBS : - _code._modify = true; -- _analysis.set_changed(_analysis.slotref); -+ _analysis.set_changed(0); -+ GR_FALLTHROUGH; - // no break - case PUT_COPY : - { -- if (arg[0] != 0) { _analysis.set_changed(_analysis.slotref); _code._modify = true; } -+ if (arg[0] != 0) { _analysis.set_changed(0); _code._modify = true; } - if (arg[0] <= 0 && -arg[0] <= _analysis.slotref - _analysis.contexts[_analysis.slotref].flags.inserted) -- _analysis.set_ref(_analysis.slotref + arg[0] - _analysis.contexts[_analysis.slotref].flags.inserted); -- else if (_analysis.slotref + arg[0] > _analysis.max_ref) _analysis.max_ref = _analysis.slotref + arg[0]; -+ _analysis.set_ref(arg[0], true); -+ else if (arg[0] > 0) -+ _analysis.set_ref(arg[0], true); - break; - } - case PUSH_ATT_TO_GATTR_OBS : // slotref on 2nd parameter - if (_code._constraint) return; -+ GR_FALLTHROUGH; - // no break - case PUSH_GLYPH_ATTR_OBS : - case PUSH_SLOT_ATTR : - case PUSH_GLYPH_METRIC : - case PUSH_ATT_TO_GLYPH_METRIC : - case PUSH_ISLOT_ATTR : - case PUSH_FEAT : - if (arg[1] <= 0 && -arg[1] <= _analysis.slotref - _analysis.contexts[_analysis.slotref].flags.inserted) -- _analysis.set_ref(_analysis.slotref + arg[1] - _analysis.contexts[_analysis.slotref].flags.inserted); -- else if (_analysis.slotref + arg[1] > _analysis.max_ref) _analysis.max_ref = _analysis.slotref + arg[1]; -+ _analysis.set_ref(arg[1], true); -+ else if (arg[1] > 0) -+ _analysis.set_ref(arg[1], true); - break; - case PUSH_ATT_TO_GLYPH_ATTR : - if (_code._constraint) return; -+ GR_FALLTHROUGH; - // no break - case PUSH_GLYPH_ATTR : - if (arg[2] <= 0 && -arg[2] <= _analysis.slotref - _analysis.contexts[_analysis.slotref].flags.inserted) -- _analysis.set_ref(_analysis.slotref + arg[2] - _analysis.contexts[_analysis.slotref].flags.inserted); -- else if (_analysis.slotref + arg[2] > _analysis.max_ref) _analysis.max_ref = _analysis.slotref + arg[2]; -+ _analysis.set_ref(arg[2], true); -+ else if (arg[2] > 0) -+ _analysis.set_ref(arg[2], true); - break; - case ASSOC : // slotrefs in varargs - break; - default: - break; - } - } - -@@ -494,32 +575,41 @@ bool Machine::Code::decoder::emit_opcode - _code._data_size += param_sz; - } - - // recursively decode a context item so we can split the skip into - // instruction and data portions. - if (opc == CNTXT_ITEM) - { - assert(_pre_context == 0); -+ _in_ctxt_item = true; - _pre_context = _max.pre_context + int8(_data[-2]); - _rule_length = _max.rule_length; - - const size_t ctxt_start = _code._instr_count; - byte & instr_skip = _data[-1]; - byte & data_skip = *_data++; - ++_code._data_size; -+ const byte *curr_end = _max.bytecode; - - if (load(bc, bc + instr_skip)) - { - bc += instr_skip; - data_skip = instr_skip - (_code._instr_count - ctxt_start); - instr_skip = _code._instr_count - ctxt_start; -+ _max.bytecode = curr_end; - - _rule_length = 1; - _pre_context = 0; -+ _in_ctxt_item = false; -+ } -+ else -+ { -+ _pre_context = 0; -+ return false; - } - } - - return bool(_code); - } - - - void Machine::Code::decoder::apply_analysis(instr * const code, instr * code_end) -@@ -533,87 +623,115 @@ void Machine::Code::decoder::apply_analy - { - if (!c->flags.referenced || !c->flags.changed) continue; - - instr * const tip = code + c->codeRef + tempcount; - memmove(tip+1, tip, (code_end - tip) * sizeof(instr)); - *tip = temp_copy; - ++code_end; - ++tempcount; -+ _code._delete = true; - } - - _code._instr_count = code_end - code; - } - - - inline - bool Machine::Code::decoder::validate_opcode(const opcode opc, const byte * const bc) - { - if (opc >= MAX_OPCODE) - { - failure(invalid_opcode); - return false; - } - const opcode_t & op = Machine::getOpcodeTable()[opc]; -+ if (op.param_sz == VARARGS && bc >= _max.bytecode) -+ { -+ failure(arguments_exhausted); -+ return false; -+ } - const size_t param_sz = op.param_sz == VARARGS ? bc[0] + 1 : op.param_sz; -- if (bc + param_sz > _max.bytecode) -+ if (bc - 1 + param_sz >= _max.bytecode) - { - failure(arguments_exhausted); - return false; - } - return true; - } - - - bool Machine::Code::decoder::valid_upto(const uint16 limit, const uint16 x) const throw() - { - const bool t = x < limit; - if (!t) failure(out_of_range_data); - return t; - } - -+bool Machine::Code::decoder::test_context() const throw() -+{ -+ if (_pre_context >= _rule_length) -+ { -+ failure(out_of_range_data); -+ return false; -+ } -+ return true; -+} - - inline - void Machine::Code::failure(const status_t s) throw() { - release_buffers(); - _status = s; - } - - - inline --void Machine::Code::decoder::analysis::set_ref(const int index) throw() { -- contexts[index].flags.referenced = true; -- if (index > max_ref) max_ref = index; -+void Machine::Code::decoder::analysis::set_ref(int index, bool incinsert) throw() { -+ if (incinsert && contexts[slotref].flags.inserted) --index; -+ if (index + slotref < 0) return; -+ contexts[index + slotref].flags.referenced = true; -+ if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; - } - - - inline --void Machine::Code::decoder::analysis::set_changed(const int index) throw() { -- contexts[index].flags.changed = true; -- if (index > max_ref) max_ref = index; -+void Machine::Code::decoder::analysis::set_noref(int index) throw() { -+ if (contexts[slotref].flags.inserted) --index; -+ if (index + slotref < 0) return; -+ if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; -+} -+ -+ -+inline -+void Machine::Code::decoder::analysis::set_changed(int index) throw() { -+ if (contexts[slotref].flags.inserted) --index; -+ if (index + slotref < 0) return; -+ contexts[index + slotref].flags.changed = true; -+ if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; - } - - - void Machine::Code::release_buffers() throw() - { -- free(_code); -- free(_data); -+ if (_own) -+ free(_code); - _code = 0; - _data = 0; - _own = false; - } - - - int32 Machine::Code::run(Machine & m, slotref * & map) const - { -- assert(_own); -+// assert(_own); - assert(*this); // Check we are actually runnable - -- if (m.slotMap().size() <= size_t(_max_ref + m.slotMap().context())) -+ if (m.slotMap().size() <= size_t(_max_ref + m.slotMap().context()) -+ || m.slotMap()[_max_ref + m.slotMap().context()] == 0) - { - m._status = Machine::slot_offset_out_bounds; --// return (m.slotMap().end() - map); - return 1; -+// return m.run(_code, _data, map); - } - - return m.run(_code, _data, map); - } - -diff --git a/gfx/graphite2/src/Collider.cpp b/gfx/graphite2/src/Collider.cpp -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/Collider.cpp -@@ -0,0 +1,1088 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2010, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+#include <algorithm> -+#include <limits> -+#include <math.h> -+#include <string> -+#include <functional> -+#include "inc/Collider.h" -+#include "inc/Segment.h" -+#include "inc/Slot.h" -+#include "inc/GlyphCache.h" -+#include "inc/Sparse.h" -+ -+#define ISQRT2 0.707106781f -+ -+// Possible rounding error for subbox boundaries: 0.016 = 1/64 = 1/256 * 4 -+// (values in font range from 0..256) -+// #define SUBBOX_RND_ERR 0.016 -+ -+using namespace graphite2; -+ -+//// SHIFT-COLLIDER //// -+ -+// Initialize the Collider to hold the basic movement limits for the -+// target slot, the one we are focusing on fixing. -+bool ShiftCollider::initSlot(Segment *seg, Slot *aSlot, const Rect &limit, float margin, float marginWeight, -+ const Position &currShift, const Position &currOffset, int dir, GR_MAYBE_UNUSED json * const dbgout) -+{ -+ int i; -+ float mx, mn; -+ float a, shift; -+ const GlyphCache &gc = seg->getFace()->glyphs(); -+ unsigned short gid = aSlot->gid(); -+ if (!gc.check(gid)) -+ return false; -+ const BBox &bb = gc.getBoundingBBox(gid); -+ const SlantBox &sb = gc.getBoundingSlantBox(gid); -+ //float sx = aSlot->origin().x + currShift.x; -+ //float sy = aSlot->origin().y + currShift.y; -+ if (currOffset.x != 0.f || currOffset.y != 0.f) -+ _limit = Rect(limit.bl - currOffset, limit.tr - currOffset); -+ else -+ _limit = limit; -+ // For a ShiftCollider, these indices indicate which vector we are moving by: -+ // each _ranges represents absolute space with respect to the origin of the slot. Thus take into account true origins but subtract the vmin for the slot -+ for (i = 0; i < 4; ++i) -+ { -+ switch (i) { -+ case 0 : // x direction -+ mn = _limit.bl.x + currOffset.x; -+ mx = _limit.tr.x + currOffset.x; -+ _len[i] = bb.xa - bb.xi; -+ a = currOffset.y + currShift.y; -+ _ranges[i].initialise<XY>(mn, mx, margin, marginWeight, a); -+ break; -+ case 1 : // y direction -+ mn = _limit.bl.y + currOffset.y; -+ mx = _limit.tr.y + currOffset.y; -+ _len[i] = bb.ya - bb.yi; -+ a = currOffset.x + currShift.x; -+ _ranges[i].initialise<XY>(mn, mx, margin, marginWeight, a); -+ break; -+ case 2 : // sum (negatively sloped diagonal boundaries) -+ // pick closest x,y limit boundaries in s direction -+ shift = currOffset.x + currOffset.y + currShift.x + currShift.y; -+ mn = -2 * min(currShift.x - _limit.bl.x, currShift.y - _limit.bl.y) + shift; -+ mx = 2 * min(_limit.tr.x - currShift.x, _limit.tr.y - currShift.y) + shift; -+ _len[i] = sb.sa - sb.si; -+ a = currOffset.x - currOffset.y + currShift.x - currShift.y; -+ _ranges[i].initialise<SD>(mn, mx, margin / ISQRT2, marginWeight, a); -+ break; -+ case 3 : // diff (positively sloped diagonal boundaries) -+ // pick closest x,y limit boundaries in d direction -+ shift = currOffset.x - currOffset.y + currShift.x - currShift.y; -+ mn = -2 * min(currShift.x - _limit.bl.x, _limit.tr.y - currShift.y) + shift; -+ mx = 2 * min(_limit.tr.x - currShift.x, currShift.y - _limit.bl.y) + shift; -+ _len[i] = sb.da - sb.di; -+ a = currOffset.x + currOffset.y + currShift.x + currShift.y; -+ _ranges[i].initialise<SD>(mn, mx, margin / ISQRT2, marginWeight, a); -+ break; -+ } -+ } -+ -+ _target = aSlot; -+ if ((dir & 1) == 0) -+ { -+ // For LTR, switch and negate x limits. -+ _limit.bl.x = -1 * limit.tr.x; -+ //_limit.tr.x = -1 * limit.bl.x; -+ } -+ _currOffset = currOffset; -+ _currShift = currShift; -+ _origin = aSlot->origin() - currOffset; // the original anchor position of the glyph -+ -+ _margin = margin; -+ _marginWt = marginWeight; -+ -+ SlotCollision *c = seg->collisionInfo(aSlot); -+ _seqClass = c->seqClass(); -+ _seqProxClass = c->seqProxClass(); -+ _seqOrder = c->seqOrder(); -+ return true; -+} -+ -+template <class O> -+float sdm(float vi, float va, float mx, float my, O op) -+{ -+ float res = 2 * mx - vi; -+ if (op(res, vi + 2 * my)) -+ { -+ res = va + 2 * my; -+ if (op(res, 2 * mx - va)) -+ res = mx + my; -+ } -+ return res; -+} -+ -+// Mark an area with a cost that can vary along the x or y axis. The region is expressed in terms of the centre of the target glyph in each axis -+void ShiftCollider::addBox_slope(bool isx, const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, float weight, float m, bool minright, int axis) -+{ -+ float a, c; -+ switch (axis) { -+ case 0 : -+ if (box.bl.y < org.y + bb.ya && box.tr.y > org.y + bb.yi && box.width() > 0) -+ { -+ a = org.y + 0.5f * (bb.yi + bb.ya); -+ c = 0.5f * (bb.xi + bb.xa); -+ if (isx) -+ _ranges[axis].weighted<XY>(box.bl.x - c, box.tr.x - c, weight, a, m, -+ (minright ? box.tr.x : box.bl.x) - c, a, 0, false); -+ else -+ _ranges[axis].weighted<XY>(box.bl.x - c, box.tr.x - c, weight, a, 0, 0, org.y, -+ m * (a * a + sqr((minright ? box.tr.y : box.bl.y) - 0.5f * (bb.yi + bb.ya))), false); -+ } -+ break; -+ case 1 : -+ if (box.bl.x < org.x + bb.xa && box.tr.x > org.x + bb.xi && box.height() > 0) -+ { -+ a = org.x + 0.5f * (bb.xi + bb.xa); -+ c = 0.5f * (bb.yi + bb.ya); -+ if (isx) -+ _ranges[axis].weighted<XY>(box.bl.y - c, box.tr.y - c, weight, a, 0, 0, org.x, -+ m * (a * a + sqr((minright ? box.tr.x : box.bl.x) - 0.5f * (bb.xi + bb.xa))), false); -+ else -+ _ranges[axis].weighted<XY>(box.bl.y - c, box.tr.y - c, weight, a, m, -+ (minright ? box.tr.y : box.bl.y) - c, a, 0, false); -+ } -+ break; -+ case 2 : -+ if (box.bl.x - box.tr.y < org.x - org.y + sb.da && box.tr.x - box.bl.y > org.x - org.y + sb.di) -+ { -+ float d = org.x - org.y + 0.5f * (sb.di + sb.da); -+ c = 0.5f * (sb.si + sb.sa); -+ float smax = min(2 * box.tr.x - d, 2 * box.tr.y + d); -+ float smin = max(2 * box.bl.x - d, 2 * box.bl.y + d); -+ if (smin > smax) return; -+ float si; -+ a = d; -+ if (isx) -+ si = 2 * (minright ? box.tr.x : box.bl.x) - a; -+ else -+ si = 2 * (minright ? box.tr.y : box.bl.y) + a; -+ _ranges[axis].weighted<SD>(smin - c, smax - c, weight / 2, a, m / 2, si, 0, 0, isx); -+ } -+ break; -+ case 3 : -+ if (box.bl.x + box.bl.y < org.x + org.y + sb.sa && box.tr.x + box.tr.y > org.x + org.y + sb.si) -+ { -+ float s = org.x + org.y + 0.5f * (sb.si + sb.sa); -+ c = 0.5f * (sb.di + sb.da); -+ float dmax = min(2 * box.tr.x - s, s - 2 * box.bl.y); -+ float dmin = max(2 * box.bl.x - s, s - 2 * box.tr.y); -+ if (dmin > dmax) return; -+ float di; -+ a = s; -+ if (isx) -+ di = 2 * (minright ? box.tr.x : box.bl.x) - a; -+ else -+ di = 2 * (minright ? box.tr.y : box.bl.y) + a; -+ _ranges[axis].weighted<SD>(dmin - c, dmax - c, weight / 2, a, m / 2, di, 0, 0, !isx); -+ } -+ break; -+ default : -+ break; -+ } -+ return; -+} -+ -+// Mark an area with an absolute cost, making it completely inaccessible. -+inline void ShiftCollider::removeBox(const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, int axis) -+{ -+ float c; -+ switch (axis) { -+ case 0 : -+ if (box.bl.y < org.y + bb.ya && box.tr.y > org.y + bb.yi && box.width() > 0) -+ { -+ c = 0.5f * (bb.xi + bb.xa); -+ _ranges[axis].exclude(box.bl.x - c, box.tr.x - c); -+ } -+ break; -+ case 1 : -+ if (box.bl.x < org.x + bb.xa && box.tr.x > org.x + bb.xi && box.height() > 0) -+ { -+ c = 0.5f * (bb.yi + bb.ya); -+ _ranges[axis].exclude(box.bl.y - c, box.tr.y - c); -+ } -+ break; -+ case 2 : -+ if (box.bl.x - box.tr.y < org.x - org.y + sb.da && box.tr.x - box.bl.y > org.x - org.y + sb.di -+ && box.width() > 0 && box.height() > 0) -+ { -+ float di = org.x - org.y + sb.di; -+ float da = org.x - org.y + sb.da; -+ float smax = sdm(di, da, box.tr.x, box.tr.y, std::greater<float>()); -+ float smin = sdm(da, di, box.bl.x, box.bl.y, std::less<float>()); -+ c = 0.5f * (sb.si + sb.sa); -+ _ranges[axis].exclude(smin - c, smax - c); -+ } -+ break; -+ case 3 : -+ if (box.bl.x + box.bl.y < org.x + org.y + sb.sa && box.tr.x + box.tr.y > org.x + org.y + sb.si -+ && box.width() > 0 && box.height() > 0) -+ { -+ float si = org.x + org.y + sb.si; -+ float sa = org.x + org.y + sb.sa; -+ float dmax = sdm(si, sa, box.tr.x, -box.bl.y, std::greater<float>()); -+ float dmin = sdm(sa, si, box.bl.x, -box.tr.y, std::less<float>()); -+ c = 0.5f * (sb.di + sb.da); -+ _ranges[axis].exclude(dmin - c, dmax - c); -+ } -+ break; -+ default : -+ break; -+ } -+ return; -+} -+ -+// Adjust the movement limits for the target to avoid having it collide -+// with the given neighbor slot. Also determine if there is in fact a collision -+// between the target and the given slot. -+bool ShiftCollider::mergeSlot(Segment *seg, Slot *slot, const Position &currShift, -+ bool isAfter, // slot is logically after _target -+ bool sameCluster, bool &hasCol, bool isExclusion, -+ GR_MAYBE_UNUSED json * const dbgout ) -+{ -+ bool isCol = false; -+ const float sx = slot->origin().x - _origin.x + currShift.x; -+ const float sy = slot->origin().y - _origin.y + currShift.y; -+ const float sd = sx - sy; -+ const float ss = sx + sy; -+ float vmin, vmax; -+ float omin, omax, otmin, otmax; -+ float cmin, cmax; // target limits -+ float torg; -+ const GlyphCache &gc = seg->getFace()->glyphs(); -+ const unsigned short gid = slot->gid(); -+ if (!gc.check(gid)) -+ return false; -+ const BBox &bb = gc.getBoundingBBox(gid); -+ -+ SlotCollision * cslot = seg->collisionInfo(slot); -+ int orderFlags = 0; -+ bool sameClass = _seqProxClass == 0 && cslot->seqClass() == _seqClass; -+ if (sameCluster && _seqClass -+ && (sameClass || (_seqProxClass != 0 && cslot->seqClass() == _seqProxClass))) -+ // Force the target glyph to be in the specified direction from the slot we're testing. -+ orderFlags = _seqOrder; -+ -+ // short circuit if only interested in direct collision and we are out of range -+ if (orderFlags || (sx + bb.xa + _margin >= _limit.bl.x && sx + bb.xi - _margin <= _limit.tr.x) -+ || (sy + bb.ya + _margin >= _limit.bl.y && sy + bb.yi - _margin <= _limit.tr.y)) -+ -+ { -+ const float tx = _currOffset.x + _currShift.x; -+ const float ty = _currOffset.y + _currShift.y; -+ const float td = tx - ty; -+ const float ts = tx + ty; -+ const SlantBox &sb = gc.getBoundingSlantBox(gid); -+ const unsigned short tgid = _target->gid(); -+ const BBox &tbb = gc.getBoundingBBox(tgid); -+ const SlantBox &tsb = gc.getBoundingSlantBox(tgid); -+ float seq_above_wt = cslot->seqAboveWt(); -+ float seq_below_wt = cslot->seqBelowWt(); -+ float seq_valign_wt = cslot->seqValignWt(); -+ // if isAfter, invert orderFlags for diagonal orders. -+ if (isAfter) -+ { -+ // invert appropriate bits -+ orderFlags ^= (sameClass ? 0x3F : 0x3); -+ // consider 2 bits at a time, non overlapping. If both bits set, clear them -+ orderFlags = orderFlags ^ ((((orderFlags >> 1) & orderFlags) & 0x15) * 3); -+ } -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ dbgout->setenv(0, slot); -+#endif -+ -+ // Process main bounding octabox. -+ for (int i = 0; i < 4; ++i) -+ { -+ switch (i) { -+ case 0 : // x direction -+ vmin = max(max(bb.xi - tbb.xa + sx, sb.di - tsb.da + ty + sd), sb.si - tsb.sa - ty + ss); -+ vmax = min(min(bb.xa - tbb.xi + sx, sb.da - tsb.di + ty + sd), sb.sa - tsb.si - ty + ss); -+ otmin = tbb.yi + ty; -+ otmax = tbb.ya + ty; -+ omin = bb.yi + sy; -+ omax = bb.ya + sy; -+ torg = _currOffset.x; -+ cmin = _limit.bl.x + torg; -+ cmax = _limit.tr.x - tbb.xi + tbb.xa + torg; -+ break; -+ case 1 : // y direction -+ vmin = max(max(bb.yi - tbb.ya + sy, tsb.di - sb.da + tx - sd), sb.si - tsb.sa - tx + ss); -+ vmax = min(min(bb.ya - tbb.yi + sy, tsb.da - sb.di + tx - sd), sb.sa - tsb.si - tx + ss); -+ otmin = tbb.xi + tx; -+ otmax = tbb.xa + tx; -+ omin = bb.xi + sx; -+ omax = bb.xa + sx; -+ torg = _currOffset.y; -+ cmin = _limit.bl.y + torg; -+ cmax = _limit.tr.y - tbb.yi + tbb.ya + torg; -+ break; -+ case 2 : // sum - moving along the positively-sloped vector, so the boundaries are the -+ // negatively-sloped boundaries. -+ vmin = max(max(sb.si - tsb.sa + ss, 2 * (bb.yi - tbb.ya + sy) + td), 2 * (bb.xi - tbb.xa + sx) - td); -+ vmax = min(min(sb.sa - tsb.si + ss, 2 * (bb.ya - tbb.yi + sy) + td), 2 * (bb.xa - tbb.xi + sx) - td); -+ otmin = tsb.di + td; -+ otmax = tsb.da + td; -+ omin = sb.di + sd; -+ omax = sb.da + sd; -+ torg = _currOffset.x + _currOffset.y; -+ cmin = _limit.bl.x + _limit.bl.y + torg; -+ cmax = _limit.tr.x + _limit.tr.y - tsb.si + tsb.sa + torg; -+ break; -+ case 3 : // diff - moving along the negatively-sloped vector, so the boundaries are the -+ // positively-sloped boundaries. -+ vmin = max(max(sb.di - tsb.da + sd, 2 * (bb.xi - tbb.xa + sx) - ts), -2 * (bb.ya - tbb.yi + sy) + ts); -+ vmax = min(min(sb.da - tsb.di + sd, 2 * (bb.xa - tbb.xi + sx) - ts), -2 * (bb.yi - tbb.ya + sy) + ts); -+ otmin = tsb.si + ts; -+ otmax = tsb.sa + ts; -+ omin = sb.si + ss; -+ omax = sb.sa + ss; -+ torg = _currOffset.x - _currOffset.y; -+ cmin = _limit.bl.x - _limit.tr.y + torg; -+ cmax = _limit.tr.x - _limit.bl.y - tsb.di + tsb.da + torg; -+ break; -+ default : -+ continue; -+ } -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ dbgout->setenv(1, reinterpret_cast<void *>(-1)); -+#define DBGTAG(x) if (dbgout) dbgout->setenv(1, reinterpret_cast<void *>(-x)); -+#else -+#define DBGTAG(x) -+#endif -+ -+ if (orderFlags) -+ { -+ Position org(tx, ty); -+ float xminf = _limit.bl.x + _currOffset.x + tbb.xi; -+ float xpinf = _limit.tr.x + _currOffset.x + tbb.xa; -+ float ypinf = _limit.tr.y + _currOffset.y + tbb.ya; -+ float yminf = _limit.bl.y + _currOffset.y + tbb.yi; -+ switch (orderFlags) { -+ case SlotCollision::SEQ_ORDER_RIGHTUP : -+ { -+ float r1Xedge = cslot->seqAboveXoff() + 0.5f * (bb.xi + bb.xa) + sx; -+ float r3Xedge = cslot->seqBelowXlim() + bb.xa + sx + 0.5f * (tbb.xa - tbb.xi); -+ float r2Yedge = 0.5f * (bb.yi + bb.ya) + sy; -+ -+ // DBGTAG(1x) means the regions are up and right -+ // region 1 -+ DBGTAG(11) -+ addBox_slope(true, Rect(Position(xminf, r2Yedge), Position(r1Xedge, ypinf)), -+ tbb, tsb, org, 0, seq_above_wt, true, i); -+ // region 2 -+ DBGTAG(12) -+ removeBox(Rect(Position(xminf, yminf), Position(r3Xedge, r2Yedge)), tbb, tsb, org, i); -+ // region 3, which end is zero is irrelevant since m weight is 0 -+ DBGTAG(13) -+ addBox_slope(true, Rect(Position(r3Xedge, yminf), Position(xpinf, r2Yedge - cslot->seqValignHt())), -+ tbb, tsb, org, seq_below_wt, 0, true, i); -+ // region 4 -+ DBGTAG(14) -+ addBox_slope(false, Rect(Position(sx + bb.xi, r2Yedge), Position(xpinf, r2Yedge + cslot->seqValignHt())), -+ tbb, tsb, org, 0, seq_valign_wt, true, i); -+ // region 5 -+ DBGTAG(15) -+ addBox_slope(false, Rect(Position(sx + bb.xi, r2Yedge - cslot->seqValignHt()), Position(xpinf, r2Yedge)), -+ tbb, tsb, org, seq_below_wt, seq_valign_wt, false, i); -+ break; -+ } -+ case SlotCollision::SEQ_ORDER_LEFTDOWN : -+ { -+ float r1Xedge = 0.5f * (bb.xi + bb.xa) + cslot->seqAboveXoff() + sx; -+ float r3Xedge = bb.xi - cslot->seqBelowXlim() + sx - 0.5f * (tbb.xa - tbb.xi); -+ float r2Yedge = 0.5f * (bb.yi + bb.ya) + sy; -+ // DBGTAG(2x) means the regions are up and right -+ // region 1 -+ DBGTAG(21) -+ addBox_slope(true, Rect(Position(r1Xedge, yminf), Position(xpinf, r2Yedge)), -+ tbb, tsb, org, 0, seq_above_wt, false, i); -+ // region 2 -+ DBGTAG(22) -+ removeBox(Rect(Position(r3Xedge, r2Yedge), Position(xpinf, ypinf)), tbb, tsb, org, i); -+ // region 3 -+ DBGTAG(23) -+ addBox_slope(true, Rect(Position(xminf, r2Yedge - cslot->seqValignHt()), Position(r3Xedge, ypinf)), -+ tbb, tsb, org, seq_below_wt, 0, false, i); -+ // region 4 -+ DBGTAG(24) -+ addBox_slope(false, Rect(Position(xminf, r2Yedge), Position(sx + bb.xa, r2Yedge + cslot->seqValignHt())), -+ tbb, tsb, org, 0, seq_valign_wt, true, i); -+ // region 5 -+ DBGTAG(25) -+ addBox_slope(false, Rect(Position(xminf, r2Yedge - cslot->seqValignHt()), -+ Position(sx + bb.xa, r2Yedge)), tbb, tsb, org, seq_below_wt, seq_valign_wt, false, i); -+ break; -+ } -+ case SlotCollision::SEQ_ORDER_NOABOVE : // enforce neighboring glyph being above -+ DBGTAG(31); -+ removeBox(Rect(Position(bb.xi - tbb.xa + sx, sy + bb.ya), -+ Position(bb.xa - tbb.xi + sx, ypinf)), tbb, tsb, org, i); -+ break; -+ case SlotCollision::SEQ_ORDER_NOBELOW : // enforce neighboring glyph being below -+ DBGTAG(32); -+ removeBox(Rect(Position(bb.xi - tbb.xa + sx, yminf), -+ Position(bb.xa - tbb.xi + sx, sy + bb.yi)), tbb, tsb, org, i); -+ break; -+ case SlotCollision::SEQ_ORDER_NOLEFT : // enforce neighboring glyph being to the left -+ DBGTAG(33) -+ removeBox(Rect(Position(xminf, bb.yi - tbb.ya + sy), -+ Position(bb.xi - tbb.xa + sx, bb.ya - tbb.yi + sy)), tbb, tsb, org, i); -+ break; -+ case SlotCollision::SEQ_ORDER_NORIGHT : // enforce neighboring glyph being to the right -+ DBGTAG(34) -+ removeBox(Rect(Position(bb.xa - tbb.xi + sx, bb.yi - tbb.ya + sy), -+ Position(xpinf, bb.ya - tbb.yi + sy)), tbb, tsb, org, i); -+ break; -+ default : -+ break; -+ } -+ } -+ -+ if (vmax < cmin - _margin || vmin > cmax + _margin || omax < otmin - _margin || omin > otmax + _margin) -+ continue; -+ -+ // Process sub-boxes that are defined for this glyph. -+ // We only need to do this if there was in fact a collision with the main octabox. -+ uint8 numsub = gc.numSubBounds(gid); -+ if (numsub > 0) -+ { -+ bool anyhits = false; -+ for (int j = 0; j < numsub; ++j) -+ { -+ const BBox &sbb = gc.getSubBoundingBBox(gid, j); -+ const SlantBox &ssb = gc.getSubBoundingSlantBox(gid, j); -+ switch (i) { -+ case 0 : // x -+ vmin = max(max(sbb.xi-tbb.xa+sx, ssb.di-tsb.da+sd+ty), ssb.si-tsb.sa+ss-ty); -+ vmax = min(min(sbb.xa-tbb.xi+sx, ssb.da-tsb.di+sd+ty), ssb.sa-tsb.si+ss-ty); -+ omin = sbb.yi + sy; -+ omax = sbb.ya + sy; -+ break; -+ case 1 : // y -+ vmin = max(max(sbb.yi-tbb.ya+sy, tsb.di-ssb.da-sd+tx), ssb.si-tsb.sa+ss-tx); -+ vmax = min(min(sbb.ya-tbb.yi+sy, tsb.da-ssb.di-sd+tx), ssb.sa-tsb.si+ss-tx); -+ omin = sbb.xi + sx; -+ omax = sbb.xa + sx; -+ break; -+ case 2 : // sum -+ vmin = max(max(ssb.si-tsb.sa+ss, 2*(sbb.yi-tbb.ya+sy)+td), 2*(sbb.xi-tbb.xa+sx)-td); -+ vmax = min(min(ssb.sa-tsb.si+ss, 2*(sbb.ya-tbb.yi+sy)+td), 2*(sbb.xa-tbb.xi+sx)-td); -+ omin = ssb.di + sd; -+ omax = ssb.da + sd; -+ break; -+ case 3 : // diff -+ vmin = max(max(ssb.di-tsb.da+sd, 2*(sbb.xi-tbb.xa+sx)-ts), -2*(sbb.ya-tbb.yi+sy)+ts); -+ vmax = min(min(ssb.da-tsb.di+sd, 2*(sbb.xa-tbb.xi+sx)-ts), -2*(sbb.yi-tbb.ya+sy)+ts); -+ omin = ssb.si + ss; -+ omax = ssb.sa + ss; -+ break; -+ } -+ if (vmax < cmin - _margin || vmin > cmax + _margin || omax < otmin - _margin || omin > otmax + _margin) -+ continue; -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ dbgout->setenv(1, reinterpret_cast<void *>(j)); -+#endif -+ if (omin > otmax) -+ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, -+ sqr(_margin - omin + otmax) * _marginWt, false); -+ else if (omax < otmin) -+ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, -+ sqr(_margin - otmin + omax) * _marginWt, false); -+ else -+ _ranges[i].exclude_with_margins(vmin, vmax, i); -+ anyhits = true; -+ } -+ if (anyhits) -+ isCol = true; -+ } -+ else // no sub-boxes -+ { -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ dbgout->setenv(1, reinterpret_cast<void *>(-1)); -+#endif -+ isCol = true; -+ if (omin > otmax) -+ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, -+ sqr(_margin - omin + otmax) * _marginWt, false); -+ else if (omax < otmin) -+ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, -+ sqr(_margin - otmin + omax) * _marginWt, false); -+ else -+ _ranges[i].exclude_with_margins(vmin, vmax, i); -+ -+ } -+ } -+ } -+ bool res = true; -+ if (cslot->exclGlyph() > 0 && gc.check(cslot->exclGlyph()) && !isExclusion) -+ { -+ // Set up the bogus slot representing the exclusion glyph. -+ Slot *exclSlot = seg->newSlot(); -+ exclSlot->setGlyph(seg, cslot->exclGlyph()); -+ Position exclOrigin(slot->origin() + cslot->exclOffset()); -+ exclSlot->origin(exclOrigin); -+ res &= mergeSlot(seg, exclSlot, currShift, isAfter, sameCluster, isCol, true, dbgout ); -+ seg->freeSlot(exclSlot); -+ } -+ hasCol |= isCol; -+ return res; -+ -+} // end of ShiftCollider::mergeSlot -+ -+ -+// Figure out where to move the target glyph to, and return the amount to shift by. -+Position ShiftCollider::resolve(GR_MAYBE_UNUSED Segment *seg, bool &isCol, GR_MAYBE_UNUSED json * const dbgout) -+{ -+ float tbase; -+ float totalCost = (float)(std::numeric_limits<float>::max() / 2); -+ Position resultPos = Position(0, 0); -+#if !defined GRAPHITE2_NTRACING -+ int bestAxis = -1; -+ if (dbgout) -+ { -+ outputJsonDbgStartSlot(dbgout, seg); -+ *dbgout << "vectors" << json::array; -+ } -+#endif -+ isCol = true; -+ for (int i = 0; i < 4; ++i) -+ { -+ float bestCost = -1; -+ float bestPos; -+ // Calculate the margin depending on whether we are moving diagonally or not: -+ switch (i) { -+ case 0 : // x direction -+ tbase = _currOffset.x; -+ break; -+ case 1 : // y direction -+ tbase = _currOffset.y; -+ break; -+ case 2 : // sum (negatively-sloped diagonals) -+ tbase = _currOffset.x + _currOffset.y; -+ break; -+ case 3 : // diff (positively-sloped diagonals) -+ tbase = _currOffset.x - _currOffset.y; -+ break; -+ } -+ Position testp; -+ bestPos = _ranges[i].closest(0, bestCost) - tbase; // Get the best relative position -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ outputJsonDbgOneVector(dbgout, seg, i, tbase, bestCost, bestPos) ; -+#endif -+ if (bestCost >= 0.0f) -+ { -+ isCol = false; -+ switch (i) { -+ case 0 : testp = Position(bestPos, _currShift.y); break; -+ case 1 : testp = Position(_currShift.x, bestPos); break; -+ case 2 : testp = Position(0.5f * (_currShift.x - _currShift.y + bestPos), 0.5f * (_currShift.y - _currShift.x + bestPos)); break; -+ case 3 : testp = Position(0.5f * (_currShift.x + _currShift.y + bestPos), 0.5f * (_currShift.x + _currShift.y - bestPos)); break; -+ } -+ if (bestCost < totalCost - 0.01f) -+ { -+ totalCost = bestCost; -+ resultPos = testp; -+#if !defined GRAPHITE2_NTRACING -+ bestAxis = i; -+#endif -+ } -+ } -+ } // end of loop over 4 directions -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ outputJsonDbgEndSlot(dbgout, resultPos, bestAxis, isCol); -+#endif -+ -+ return resultPos; -+ -+} // end of ShiftCollider::resolve -+ -+ -+#if !defined GRAPHITE2_NTRACING -+ -+void ShiftCollider::outputJsonDbg(json * const dbgout, Segment *seg, int axis) -+{ -+ int axisMax = axis; -+ if (axis < 0) // output all axes -+ { -+ *dbgout << "gid" << _target->gid() -+ << "limit" << _limit -+ << "target" << json::object -+ << "origin" << _target->origin() -+ << "margin" << _margin -+ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid()) -+ << "slantbox" << seg->getFace()->glyphs().slant(_target->gid()) -+ << json::close; // target object -+ *dbgout << "ranges" << json::array; -+ axis = 0; -+ axisMax = 3; -+ } -+ for (int iAxis = axis; iAxis <= axisMax; ++iAxis) -+ { -+ *dbgout << json::flat << json::array << _ranges[iAxis].position(); -+ for (Zones::const_iterator s = _ranges[iAxis].begin(), e = _ranges[iAxis].end(); s != e; ++s) -+ *dbgout << json::flat << json::array -+ << Position(s->x, s->xm) << s->sm << s->smx << s->c -+ << json::close; -+ *dbgout << json::close; -+ } -+ if (axis < axisMax) // looped through the _ranges array for all axes -+ *dbgout << json::close; // ranges array -+} -+ -+void ShiftCollider::outputJsonDbgStartSlot(json * const dbgout, Segment *seg) -+{ -+ *dbgout << json::object // slot - not closed till the end of the caller method -+ << "slot" << objectid(dslot(seg, _target)) -+ << "gid" << _target->gid() -+ << "limit" << _limit -+ << "target" << json::object -+ << "origin" << _origin -+ << "currShift" << _currShift -+ << "currOffset" << seg->collisionInfo(_target)->offset() -+ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid()) -+ << "slantBox" << seg->getFace()->glyphs().slant(_target->gid()) -+ << "fix" << "shift"; -+ *dbgout << json::close; // target object -+} -+ -+void ShiftCollider::outputJsonDbgEndSlot(GR_MAYBE_UNUSED json * const dbgout, -+ Position resultPos, int bestAxis, bool isCol) -+{ -+ *dbgout << json::close // vectors array -+ << "result" << resultPos -+ //<< "scraping" << _scraping[bestAxis] -+ << "bestAxis" << bestAxis -+ << "stillBad" << isCol -+ << json::close; // slot object -+} -+ -+void ShiftCollider::outputJsonDbgOneVector(json * const dbgout, Segment *seg, int axis, -+ float tleft, float bestCost, float bestVal) -+{ -+ const char * label; -+ switch (axis) -+ { -+ case 0: label = "x"; break; -+ case 1: label = "y"; break; -+ case 2: label = "sum (NE-SW)"; break; -+ case 3: label = "diff (NW-SE)"; break; -+ default: label = "???"; break; -+ } -+ -+ *dbgout << json::object // vector -+ << "direction" << label -+ << "targetMin" << tleft; -+ -+ outputJsonDbgRemovals(dbgout, axis, seg); -+ -+ *dbgout << "ranges"; -+ outputJsonDbg(dbgout, seg, axis); -+ -+ *dbgout << "bestCost" << bestCost -+ << "bestVal" << bestVal + tleft -+ << json::close; // vectors object -+} -+ -+void ShiftCollider::outputJsonDbgRemovals(json * const dbgout, int axis, Segment *seg) -+{ -+ *dbgout << "removals" << json::array; -+ _ranges[axis].jsonDbgOut(seg); -+ *dbgout << json::close; // removals array -+} -+ -+#endif // !defined GRAPHITE2_NTRACING -+ -+ -+//// KERN-COLLIDER //// -+ -+inline -+static float localmax (float al, float au, float bl, float bu, float x) -+{ -+ if (al < bl) -+ { if (au < bu) return au < x ? au : x; } -+ else if (au > bu) return bl < x ? bl : x; -+ return x; -+} -+ -+inline -+static float localmin(float al, float au, float bl, float bu, float x) -+{ -+ if (bl > al) -+ { if (bu > au) return bl > x ? bl : x; } -+ else if (au > bu) return al > x ? al : x; -+ return x; -+} -+ -+// Return the given edge of the glyph at height y, taking any slant box into account. -+static float get_edge(Segment *seg, const Slot *s, const Position &shift, float y, float width, bool isRight) -+{ -+ const GlyphCache &gc = seg->getFace()->glyphs(); -+ unsigned short gid = s->gid(); -+ float sx = s->origin().x + shift.x; -+ float sy = s->origin().y + shift.y; -+ uint8 numsub = gc.numSubBounds(gid); -+ float res = isRight ? (float)-1e38 : (float)1e38; -+ -+ if (numsub > 0) -+ { -+ for (int i = 0; i < numsub; ++i) -+ { -+ const BBox &sbb = gc.getSubBoundingBBox(gid, i); -+ const SlantBox &ssb = gc.getSubBoundingSlantBox(gid, i); -+ if (sy + sbb.yi > y + width / 2 || sy + sbb.ya < y - width / 2) -+ continue; -+ if (isRight) -+ { -+ float x = sx + sbb.xa; -+ if (x > res) -+ { -+ float td = sx - sy + ssb.da + y; -+ float ts = sx + sy + ssb.sa - y; -+ x = localmax(td - width / 2, td + width / 2, ts - width / 2, ts + width / 2, x); -+ if (x > res) -+ res = x; -+ } -+ } -+ else -+ { -+ float x = sx + sbb.xi; -+ if (x < res) -+ { -+ float td = sx - sy + ssb.di + y; -+ float ts = sx + sy + ssb.si - y; -+ x = localmin(td - width / 2, td + width / 2, ts - width / 2, ts + width / 2, x); -+ if (x < res) -+ res = x; -+ } -+ } -+ } -+ } -+ else -+ { -+ const BBox &bb = gc.getBoundingBBox(gid); -+ const SlantBox &sb = gc.getBoundingSlantBox(gid); -+ float td = sx - sy + y; -+ float ts = sx + sy - y; -+ if (isRight) -+ res = localmax(td + sb.da - width / 2, td + sb.da + width / 2, ts + sb.sa - width / 2, ts + sb.sa + width / 2, sx + bb.xa); -+ else -+ res = localmin(td + sb.di - width / 2, td + sb.di + width / 2, ts + sb.si - width / 2, ts + sb.si + width / 2, sx + bb.xi); -+ } -+ return res; -+} -+ -+ -+bool KernCollider::initSlot(Segment *seg, Slot *aSlot, const Rect &limit, float margin, -+ const Position &currShift, const Position &offsetPrev, int dir, -+ float ymin, float ymax, GR_MAYBE_UNUSED json * const dbgout) -+{ -+ const GlyphCache &gc = seg->getFace()->glyphs(); -+ const Slot *base = aSlot; -+ // const Slot *last = aSlot; -+ const Slot *s; -+ int numSlices; -+ while (base->attachedTo()) -+ base = base->attachedTo(); -+ if (margin < 10) margin = 10; -+ -+ _limit = limit; -+ _offsetPrev = offsetPrev; // kern from a previous pass -+ -+ // Calculate the height of the glyph and how many horizontal slices to use. -+ if (_maxy >= 1e37f) -+ { -+ _maxy = ymax; -+ _miny = ymin; -+ _sliceWidth = margin / 1.5f; -+ numSlices = int((_maxy - _miny + 2) / (_sliceWidth / 1.5f) + 1.f); // +2 helps with rounding errors -+ _edges.clear(); -+ _edges.insert(_edges.begin(), numSlices, (dir & 1) ? 1e38f : -1e38f); -+ _xbound = (dir & 1) ? (float)1e38f : (float)-1e38f; -+ } -+ else if (_maxy != ymax || _miny != ymin) -+ { -+ if (_miny != ymin) -+ { -+ numSlices = int((ymin - _miny) / _sliceWidth - 1); -+ _miny += numSlices * _sliceWidth; -+ if (numSlices < 0) -+ _edges.insert(_edges.begin(), -numSlices, (dir & 1) ? 1e38f : -1e38f); -+ else if ((unsigned)numSlices < _edges.size()) // this shouldn't fire since we always grow the range -+ { -+ Vector<float>::iterator e = _edges.begin(); -+ while (numSlices--) -+ ++e; -+ _edges.erase(_edges.begin(), e); -+ } -+ } -+ if (_maxy != ymax) -+ { -+ numSlices = int((ymax - _miny) / _sliceWidth + 1); -+ _maxy = numSlices * _sliceWidth + _miny; -+ if (numSlices > (int)_edges.size()) -+ _edges.insert(_edges.end(), numSlices - _edges.size(), (dir & 1) ? 1e38f : -1e38f); -+ else if (numSlices < (int)_edges.size()) // this shouldn't fire since we always grow the range -+ { -+ while ((int)_edges.size() > numSlices) -+ _edges.pop_back(); -+ } -+ } -+ } -+ numSlices = _edges.size(); -+ -+#if !defined GRAPHITE2_NTRACING -+ // Debugging -+ _seg = seg; -+ _slotNear.clear(); -+ _slotNear.insert(_slotNear.begin(), numSlices, NULL); -+ _nearEdges.clear(); -+ _nearEdges.insert(_nearEdges.begin(), numSlices, (dir & 1) ? -1e38f : +1e38f); -+#endif -+ -+ // Determine the trailing edge of each slice (ie, left edge for a RTL glyph). -+ for (s = base; s; s = s->nextInCluster(s)) -+ { -+ SlotCollision *c = seg->collisionInfo(s); -+ if (!gc.check(s->gid())) -+ return false; -+ const BBox &bs = gc.getBoundingBBox(s->gid()); -+ float x = s->origin().x + c->shift().x + ((dir & 1) ? bs.xi : bs.xa); -+ // Loop over slices. -+ // Note smin might not be zero if glyph s is not at the bottom of the cluster; similarly for smax. -+ float toffset = c->shift().y - _miny + 1 + s->origin().y; -+ int smin = max(0, int((bs.yi + toffset) / _sliceWidth)); -+ int smax = min(numSlices - 1, int((bs.ya + toffset) / _sliceWidth + 1)); -+ for (int i = smin; i <= smax; ++i) -+ { -+ float t; -+ float y = _miny - 1 + (i + .5f) * _sliceWidth; // vertical center of slice -+ if ((dir & 1) && x < _edges[i]) -+ { -+ t = get_edge(seg, s, c->shift(), y, _sliceWidth, false); -+ if (t < _edges[i]) -+ { -+ _edges[i] = t; -+ if (t < _xbound) -+ _xbound = t; -+ } -+ } -+ else if (!(dir & 1) && x > _edges[i]) -+ { -+ t = get_edge(seg, s, c->shift(), y, _sliceWidth, true); -+ if (t > _edges[i]) -+ { -+ _edges[i] = t; -+ if (t > _xbound) -+ _xbound = t; -+ } -+ } -+ } -+ } -+ _mingap = (float)1e38; -+ _target = aSlot; -+ _margin = margin; -+ _currShift = currShift; -+ return true; -+} // end of KernCollider::initSlot -+ -+ -+// Determine how much the target slot needs to kern away from the given slot. -+// In other words, merge information from given slot's position with what the target slot knows -+// about how it can kern. -+// Return false if we know there is no collision, true if we think there might be one. -+bool KernCollider::mergeSlot(Segment *seg, Slot *slot, const Position &currShift, float currSpace, int dir, GR_MAYBE_UNUSED json * const dbgout) -+{ -+ int rtl = (dir & 1) * 2 - 1; -+ if (!seg->getFace()->glyphs().check(slot->gid())) -+ return false; -+ const Rect &bb = seg->theGlyphBBoxTemporary(slot->gid()); -+ const float sx = slot->origin().x + currShift.x; -+ float x = sx + (rtl > 0 ? bb.tr.x : bb.bl.x); -+ // this isn't going to reduce _mingap so skip -+ if ((rtl > 0 && x < _xbound - _mingap - currSpace) || (rtl <= 0 && x > _xbound + _mingap + currSpace)) -+ return false; -+ -+ const float sy = slot->origin().y + currShift.y; -+ int smin = max(0, int((bb.bl.y + (1 - _miny + sy)) / _sliceWidth + 1)); -+ int smax = min((int)_edges.size() - 1, int((bb.tr.y + (1 - _miny + sy)) / _sliceWidth + 1)); -+ bool collides = false; -+ -+ for (int i = smin; i <= smax; ++i) -+ { -+ float t; -+ float y = (float)(_miny - 1 + (i + .5f) * _sliceWidth); // vertical center of slice -+ if (x * rtl > _edges[i] * rtl - _mingap - currSpace) -+ { -+ // 2 * currSpace to account for the space that is already separating them and the space we want to add -+ float m = get_edge(seg, slot, currShift, y, _sliceWidth, rtl > 0) + 2 * rtl * currSpace; -+ t = rtl * (_edges[i] - m); -+ // Check slices above and below (if any). -+ if (i < (int)_edges.size() - 1) t = min(t, rtl * (_edges[i+1] - m)); -+ if (i > 0) t = min(t, rtl * (_edges[i-1] - m)); -+ // _mingap is positive to shrink -+ if (t < _mingap) -+ { -+ _mingap = t; -+ collides = true; -+ } -+#if !defined GRAPHITE2_NTRACING -+ // Debugging - remember the closest neighboring edge for this slice. -+ if (rtl * m > rtl * _nearEdges[i]) -+ { -+ _slotNear[i] = slot; -+ _nearEdges[i] = m; -+ } -+#endif -+ } -+ } -+ return collides; // note that true is not a necessarily reliable value -+ -+} // end of KernCollider::mergeSlot -+ -+ -+// Return the amount to kern by. -+Position KernCollider::resolve(GR_MAYBE_UNUSED Segment *seg, GR_MAYBE_UNUSED Slot *slot, -+ int dir, float margin, GR_MAYBE_UNUSED json * const dbgout) -+{ -+ float resultNeeded = (1 - 2 * (dir & 1)) * (_mingap - margin); -+ float result = min(_limit.tr.x - _offsetPrev.x, max(resultNeeded, _limit.bl.x - _offsetPrev.x)); -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ { -+ *dbgout << json::object // slot -+ << "slot" << objectid(dslot(seg, _target)) -+ << "gid" << _target->gid() -+ << "margin" << _margin -+ << "limit" << _limit -+ << "miny" << _miny -+ << "maxy" << _maxy -+ << "slicewidth" << _sliceWidth -+ << "target" << json::object -+ << "origin" << _target->origin() -+ //<< "currShift" << _currShift -+ << "offsetPrev" << _offsetPrev -+ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid()) -+ << "slantBox" << seg->getFace()->glyphs().slant(_target->gid()) -+ << "fix" << "kern" -+ << json::close; // target object -+ -+ *dbgout << "slices" << json::array; -+ for (int is = 0; is < (int)_edges.size(); is++) -+ { -+ *dbgout << json::flat << json::object -+ << "i" << is -+ << "targetEdge" << _edges[is] -+ << "neighbor" << objectid(dslot(seg, _slotNear[is])) -+ << "nearEdge" << _nearEdges[is] -+ << json::close; -+ } -+ *dbgout << json::close; // slices array -+ -+ *dbgout -+ << "xbound" << _xbound -+ << "minGap" << _mingap -+ << "needed" << resultNeeded -+ << "result" << result -+ << "stillBad" << (result != resultNeeded) -+ << json::close; // slot object -+ } -+#endif -+ -+ return Position(result, 0.); -+ -+} // end of KernCollider::resolve -+ -+void KernCollider::shift(const Position &mv, int dir) -+{ -+ for (Vector<float>::iterator e = _edges.begin(); e != _edges.end(); ++e) -+ *e += mv.x; -+ _xbound += (1 - 2 * (dir & 1)) * mv.x; -+} -+ -+//// SLOT-COLLISION //// -+ -+// Initialize the collision attributes for the given slot. -+SlotCollision::SlotCollision(Segment *seg, Slot *slot) -+{ -+ initFromSlot(seg, slot); -+} -+ -+void SlotCollision::initFromSlot(Segment *seg, Slot *slot) -+{ -+ // Initialize slot attributes from glyph attributes. -+ // The order here must match the order in the grcompiler code, -+ // GrcSymbolTable::AssignInternalGlyphAttrIDs. -+ uint16 gid = slot->gid(); -+ uint16 aCol = seg->silf()->aCollision(); // flags attr ID -+ const GlyphFace * glyphFace = seg->getFace()->glyphs().glyphSafe(gid); -+ if (!glyphFace) -+ return; -+ const sparse &p = glyphFace->attrs(); -+ _flags = p[aCol]; -+ _limit = Rect(Position(p[aCol+1], p[aCol+2]), -+ Position(p[aCol+3], p[aCol+4])); -+ _margin = p[aCol+5]; -+ _marginWt = p[aCol+6]; -+ -+ _seqClass = p[aCol+7]; -+ _seqProxClass = p[aCol+8]; -+ _seqOrder = p[aCol+9]; -+ _seqAboveXoff = p[aCol+10]; -+ _seqAboveWt = p[aCol+11]; -+ _seqBelowXlim = p[aCol+12]; -+ _seqBelowWt = p[aCol+13]; -+ _seqValignHt = p[aCol+14]; -+ _seqValignWt = p[aCol+15]; -+ -+ // These attributes do not have corresponding glyph attribute: -+ _exclGlyph = 0; -+ _exclOffset = Position(0, 0); -+} -+ -+float SlotCollision::getKern(int dir) const -+{ -+ if ((_flags & SlotCollision::COLL_KERN) != 0) -+ return float(_shift.x * ((dir & 1) ? -1 : 1)); -+ else -+ return 0; -+} -+ -diff --git a/gfx/graphite2/src/Decompressor.cpp b/gfx/graphite2/src/Decompressor.cpp -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/Decompressor.cpp -@@ -0,0 +1,113 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2015, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+#include <cassert> -+ -+#include "inc/Decompressor.h" -+#include "inc/Compression.h" -+ -+using namespace lz4; -+ -+namespace { -+ -+inline -+u32 read_literal(u8 const * &s, u8 const * const e, u32 l) { -+ if (l == 15 && s != e) -+ { -+ u8 b = 0; -+ do { l += b = *s++; } while(b==0xff && s != e); -+ } -+ return l; -+} -+ -+bool read_sequence(u8 const * &src, u8 const * const end, u8 const * &literal, u32 & literal_len, u32 & match_len, u32 & match_dist) -+{ -+ u8 const token = *src++; -+ -+ literal_len = read_literal(src, end, token >> 4); -+ literal = src; -+ src += literal_len; -+ -+ if (src > end - 2) -+ return false; -+ -+ match_dist = *src++; -+ match_dist |= *src++ << 8; -+ match_len = read_literal(src, end, token & 0xf); -+ -+ return src <= end-5; -+} -+ -+} -+ -+int lz4::decompress(void const *in, size_t in_size, void *out, size_t out_size) -+{ -+ if (out_size <= in_size || in_size < sizeof(unsigned long)+1) -+ return -1; -+ -+ u8 const * src = static_cast<u8 const *>(in), -+ * literal = 0, -+ * const src_end = src + in_size; -+ -+ u8 * dst = static_cast<u8*>(out), -+ * const dst_end = dst + out_size; -+ -+ u32 literal_len = 0, -+ match_len = 0, -+ match_dist = 0; -+ -+ while (read_sequence(src, src_end, literal, literal_len, match_len, match_dist)) -+ { -+ if (literal_len != 0) -+ { -+ // Copy in literal. At this point the last full sequence must be at -+ // least MINMATCH + 5 from the end of the output buffer. -+ if (dst + align(literal_len) > dst_end - (MINMATCH+5)) -+ return -1; -+ dst = overrun_copy(dst, literal, literal_len); -+ } -+ -+ // Copy, possibly repeating, match from earlier in the -+ // decoded output. -+ u8 const * const pcpy = dst - match_dist; -+ if (pcpy < static_cast<u8*>(out) -+ || dst + match_len + MINMATCH > dst_end - 5) -+ return -1; -+ if (dst > pcpy+sizeof(unsigned long) -+ && dst + align(match_len + MINMATCH) <= dst_end) -+ dst = overrun_copy(dst, pcpy, match_len + MINMATCH); -+ else -+ dst = safe_copy(dst, pcpy, match_len + MINMATCH); -+ } -+ -+ if (literal + literal_len > src_end -+ || dst + literal_len > dst_end) -+ return -1; -+ dst = fast_copy(dst, literal, literal_len); -+ -+ return dst - (u8*)out; -+} -+ -diff --git a/gfx/graphite2/src/Face.cpp b/gfx/graphite2/src/Face.cpp ---- a/gfx/graphite2/src/Face.cpp -+++ b/gfx/graphite2/src/Face.cpp -@@ -23,28 +23,39 @@ Alternatively, the contents of this file - Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ - #include <cstring> - #include "graphite2/Segment.h" - #include "inc/CmapCache.h" - #include "inc/debug.h" -+#include "inc/Decompressor.h" - #include "inc/Endian.h" - #include "inc/Face.h" - #include "inc/FileFace.h" - #include "inc/GlyphFace.h" - #include "inc/json.h" - #include "inc/SegCacheStore.h" - #include "inc/Segment.h" - #include "inc/NameTable.h" - #include "inc/Error.h" - - using namespace graphite2; - -+namespace -+{ -+enum compression -+{ -+ NONE, -+ LZ4 -+}; -+ -+} -+ - Face::Face(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops) - : m_appFaceHandle(appFaceHandle), - m_pFileFace(NULL), - m_pGlyphFaceCache(NULL), - m_cmap(NULL), - m_pNames(NULL), - m_logger(NULL), - m_error(0), m_errcntxt(0), -@@ -79,55 +90,59 @@ float Face::default_glyph_advance(const - - bool Face::readGlyphs(uint32 faceOptions) - { - Error e; - #ifdef GRAPHITE2_TELEMETRY - telemetry::category _glyph_cat(tele.glyph); - #endif - error_context(EC_READGLYPHS); -+ m_pGlyphFaceCache = new GlyphCache(*this, faceOptions); -+ -+ if (e.test(!m_pGlyphFaceCache, E_OUTOFMEM) -+ || e.test(m_pGlyphFaceCache->numGlyphs() == 0, E_NOGLYPHS) -+ || e.test(m_pGlyphFaceCache->unitsPerEm() == 0, E_BADUPEM)) -+ { -+ return error(e); -+ } -+ - if (faceOptions & gr_face_cacheCmap) - m_cmap = new CachedCmap(*this); - else - m_cmap = new DirectCmap(*this); -- -- m_pGlyphFaceCache = new GlyphCache(*this, faceOptions); -- if (e.test(!m_pGlyphFaceCache, E_OUTOFMEM) -- || e.test(m_pGlyphFaceCache->numGlyphs() == 0, E_NOGLYPHS) -- || e.test(m_pGlyphFaceCache->unitsPerEm() == 0, E_BADUPEM) -- || e.test(!m_cmap, E_OUTOFMEM) || e.test(!*m_cmap, E_BADCMAP)) -- { -+ if (e.test(!m_cmap, E_OUTOFMEM) || e.test(!*m_cmap, E_BADCMAP)) - return error(e); -- } - - if (faceOptions & gr_face_preloadGlyphs) - nameTable(); // preload the name table along with the glyphs. - - return true; - } - - bool Face::readGraphite(const Table & silf) - { - #ifdef GRAPHITE2_TELEMETRY - telemetry::category _silf_cat(tele.silf); - #endif - Error e; - error_context(EC_READSILF); - const byte * p = silf; -- if (e.test(!p, E_NOSILF)) return error(e); -+ if (e.test(!p, E_NOSILF) || e.test(silf.size() < 20, E_BADSIZE)) return error(e); - - const uint32 version = be::read<uint32>(p); - if (e.test(version < 0x00020000, E_TOOOLD)) return error(e); - if (version >= 0x00030000) - be::skip<uint32>(p); // compilerVersion - m_numSilf = be::read<uint16>(p); -+ - be::skip<uint16>(p); // reserved - - bool havePasses = false; - m_silfs = new Silf[m_numSilf]; -+ if (e.test(!m_silfs, E_OUTOFMEM)) return error(e); - for (int i = 0; i < m_numSilf; i++) - { - error_context(EC_ASILF + (i << 8)); - const uint32 offset = be::read<uint32>(p), - next = i == m_numSilf - 1 ? silf.size() : be::peek<uint32>(p); - if (e.test(next > silf.size() || offset >= next, E_BADSIZE)) - return error(e); - -@@ -153,29 +168,38 @@ bool Face::runGraphite(Segment *seg, con - if (dbgout) - { - *dbgout << json::object - << "id" << objectid(seg) - << "passes" << json::array; - } - #endif - -- bool res = aSilf->runGraphite(seg, 0, aSilf->justificationPass(), true); -+// if ((seg->dir() & 1) != aSilf->dir()) -+// seg->reverseSlots(); -+ if ((seg->dir() & 3) == 3 && aSilf->bidiPass() == 0xFF) -+ seg->doMirror(aSilf->aMirror()); -+ bool res = aSilf->runGraphite(seg, 0, aSilf->positionPass(), true); - if (res) -- res = aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false); -+ { -+ seg->associateChars(0, seg->charInfoCount()); -+ if (aSilf->flags() & 0x20) -+ res &= seg->initCollisions(); -+ res &= aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false); -+ } - - #if !defined GRAPHITE2_NTRACING - if (dbgout) - { -+ seg->positionSlots(0, 0, 0, aSilf->dir()); - *dbgout << json::item - << json::close // Close up the passes array - << "output" << json::array; - for(Slot * s = seg->first(); s; s = s->next()) - *dbgout << dslot(seg, s); -- seg->finalise(0); // Call this here to fix up charinfo back indexes. - *dbgout << json::close - << "advance" << seg->advance() - << "chars" << json::array; - for(size_t i = 0, n = seg->charInfoCount(); i != n; ++i) - *dbgout << json::flat << *seg->charinfo(i); - *dbgout << json::close // Close up the chars array - << json::close; // Close up the segment object - } -@@ -208,17 +232,19 @@ uint16 Face::findPseudo(uint32 uid) cons - } - - uint16 Face::getGlyphMetric(uint16 gid, uint8 metric) const - { - switch (metrics(metric)) - { - case kgmetAscent : return m_ascent; - case kgmetDescent : return m_descent; -- default: return glyphs().glyph(gid)->getMetric(metric); -+ default: -+ if (gid >= glyphs().numGlyphs()) return 0; -+ return glyphs().glyph(gid)->getMetric(metric); - } - } - - void Face::takeFileFace(FileFace* pFileFace GR_MAYBE_UNUSED/*takes ownership*/) - { - #ifndef GRAPHITE2_NFILEFACE - if (m_pFileFace==pFileFace) - return; -@@ -240,30 +266,100 @@ NameTable * Face::nameTable() const - uint16 Face::languageForLocale(const char * locale) const - { - nameTable(); - if (m_pNames) - return m_pNames->getLanguageId(locale); - return 0; - } - --Face::Table::Table(const Face & face, const Tag n) throw() --: _f(&face) -+ -+ -+Face::Table::Table(const Face & face, const Tag n, uint32 version) throw() -+: _f(&face), _compressed(false) - { - size_t sz = 0; -- _p = reinterpret_cast<const byte *>((*_f->m_ops.get_table)(_f->m_appFaceHandle, n, &sz)); -+ _p = static_cast<const byte *>((*_f->m_ops.get_table)(_f->m_appFaceHandle, n, &sz)); - _sz = uint32(sz); -+ - if (!TtfUtil::CheckTable(n, _p, _sz)) - { - this->~Table(); // Make sure we release the table buffer even if the table filed it's checks -- _p = 0; _sz = 0; -+ return; - } -+ -+ if (be::peek<uint32>(_p) >= version) -+ decompress(); -+} -+ -+void Face::Table::releaseBuffers() -+{ -+ if (_compressed) -+ free(const_cast<byte *>(_p)); -+ else if (_p && _f->m_ops.release_table) -+ (*_f->m_ops.release_table)(_f->m_appFaceHandle, _p); -+ _p = 0; _sz = 0; - } - - Face::Table & Face::Table::operator = (const Table & rhs) throw() - { - if (_p == rhs._p) return *this; - - this->~Table(); - new (this) Table(rhs); - return *this; - } - -+Error Face::Table::decompress() -+{ -+ Error e; -+ if (e.test(_sz < 5 * sizeof(uint32), E_BADSIZE)) -+ return e; -+ byte * uncompressed_table = 0; -+ size_t uncompressed_size = 0; -+ -+ const byte * p = _p; -+ const uint32 version = be::read<uint32>(p); // Table version number. -+ -+ // The scheme is in the top 5 bits of the 1st uint32. -+ const uint32 hdr = be::read<uint32>(p); -+ switch(compression(hdr >> 27)) -+ { -+ case NONE: return e; -+ -+ case LZ4: -+ { -+ uncompressed_size = hdr & 0x07ffffff; -+ uncompressed_table = gralloc<byte>(uncompressed_size); -+ if (!e.test(!uncompressed_table, E_OUTOFMEM)) -+ // coverity[forward_null : FALSE] - uncompressed_table has been checked so can't be null -+ // coverity[checked_return : FALSE] - we test e later -+ e.test(lz4::decompress(p, _sz - 2*sizeof(uint32), uncompressed_table, uncompressed_size) != signed(uncompressed_size), E_SHRINKERFAILED); -+ break; -+ } -+ -+ default: -+ e.error(E_BADSCHEME); -+ }; -+ -+ // Check the uncompressed version number against the original. -+ if (!e) -+ // coverity[forward_null : FALSE] - uncompressed_table has already been tested so can't be null -+ // coverity[checked_return : FALSE] - we test e later -+ e.test(be::peek<uint32>(uncompressed_table) != version, E_SHRINKERFAILED); -+ -+ // Tell the provider to release the compressed form since were replacing -+ // it anyway. -+ releaseBuffers(); -+ -+ if (e) -+ { -+ free(uncompressed_table); -+ uncompressed_table = 0; -+ uncompressed_size = 0; -+ } -+ -+ _p = uncompressed_table; -+ _sz = uncompressed_size; -+ _compressed = true; -+ -+ return e; -+} -diff --git a/gfx/graphite2/src/FeatureMap.cpp b/gfx/graphite2/src/FeatureMap.cpp ---- a/gfx/graphite2/src/FeatureMap.cpp -+++ b/gfx/graphite2/src/FeatureMap.cpp -@@ -126,60 +126,61 @@ bool FeatureMap::readFeats(const Face & - unsigned short bits = 0; //to cause overflow on first Feature - - for (int i = 0, ie = m_numFeats; i != ie; i++) - { - const uint32 label = version < 0x00020000 ? be::read<uint16>(p) : be::read<uint32>(p); - const uint16 num_settings = be::read<uint16>(p); - if (version >= 0x00020000) - be::skip<uint16>(p); -- const byte * const feat_setts = feat_start + be::read<uint32>(p); -+ const uint32 settings_offset = be::read<uint32>(p); - const uint16 flags = be::read<uint16>(p), - uiName = be::read<uint16>(p); - -- if (feat_setts + num_settings * FEATURE_SETTING_SIZE > feat_end) -+ if (settings_offset > size_t(feat_end - feat_start) -+ || settings_offset + num_settings * FEATURE_SETTING_SIZE > size_t(feat_end - feat_start)) - { - free(defVals); - return false; - } - - FeatureSetting *uiSet; - uint32 maxVal; - if (num_settings != 0) - { - uiSet = gralloc<FeatureSetting>(num_settings); - if (!uiSet) - { - free(defVals); - return false; - } -- maxVal = readFeatureSettings(feat_setts, uiSet, num_settings); -+ maxVal = readFeatureSettings(feat_start + settings_offset, uiSet, num_settings); - defVals[i] = uiSet[0].value(); - } - else - { - uiSet = 0; - maxVal = 0xffffffff; - defVals[i] = 0; - } - - ::new (m_feats + i) FeatureRef (face, bits, maxVal, - label, uiName, flags, - uiSet, num_settings); - } -- m_defaultFeatures = new Features(bits/(sizeof(uint32)*8) + 1, *this); -+ new (&m_defaultFeatures) Features(bits/(sizeof(uint32)*8) + 1, *this); - m_pNamedFeats = new NameAndFeatureRef[m_numFeats]; -- if (!m_defaultFeatures || !m_pNamedFeats) -+ if (!m_pNamedFeats) - { - free(defVals); - return false; - } - for (int i = 0; i < m_numFeats; ++i) - { -- m_feats[i].applyValToFeature(defVals[i], *m_defaultFeatures); -+ m_feats[i].applyValToFeature(defVals[i], m_defaultFeatures); - m_pNamedFeats[i] = m_feats+i; - } - - free(defVals); - - qsort(m_pNamedFeats, m_numFeats, sizeof(NameAndFeatureRef), &cmpNameAndFeatures); - - return true; -@@ -209,17 +210,17 @@ bool SillMap::readSill(const Face & face - if (sill.size() < m_numLanguages * 8U + 12) return false; - - for (int i = 0; i < m_numLanguages; i++) - { - uint32 langid = be::read<uint32>(p); - uint16 numSettings = be::read<uint16>(p); - uint16 offset = be::read<uint16>(p); - if (offset + 8U * numSettings > sill.size() && numSettings > 0) return false; -- Features* feats = new Features(*m_FeatureMap.m_defaultFeatures); -+ Features* feats = new Features(m_FeatureMap.m_defaultFeatures); - if (!feats) return false; - const byte *pLSet = sill + offset; - - // Apply langauge specific settings - for (int j = 0; j < numSettings; j++) - { - uint32 name = be::read<uint32>(pLSet); - uint16 val = be::read<uint16>(pLSet); -@@ -245,17 +246,17 @@ Features* SillMap::cloneFeatures(uint32 - // the number of languages in a font is usually small e.g. 8 in Doulos - // so this loop is not very expensive - for (uint16 i = 0; i < m_numLanguages; i++) - { - if (m_langFeats[i].m_lang == langname) - return new Features(*m_langFeats[i].m_pFeatures); - } - } -- return new Features (*m_FeatureMap.m_defaultFeatures); -+ return new Features (m_FeatureMap.m_defaultFeatures); - } - - - - const FeatureRef *FeatureMap::findFeatureRef(uint32 name) const - { - NameAndFeatureRef *it; - -diff --git a/gfx/graphite2/src/FileFace.cpp b/gfx/graphite2/src/FileFace.cpp ---- a/gfx/graphite2/src/FileFace.cpp -+++ b/gfx/graphite2/src/FileFace.cpp -@@ -55,18 +55,22 @@ FileFace::FileFace(const char *filename) - if (fread(_header_tbl, 1, tbl_len, _file) != tbl_len) return; - if (!TtfUtil::CheckHeader(_header_tbl)) return; - } - - // Get the table directory - if (!TtfUtil::GetTableDirInfo(_header_tbl, tbl_offset, tbl_len)) return; - _table_dir = (TtfUtil::Sfnt::OffsetSubTable::Entry*)gralloc<char>(tbl_len); - if (fseek(_file, tbl_offset, SEEK_SET)) return; -- if (_table_dir) -- if (fread(_table_dir, 1, tbl_len, _file) != tbl_len) return; -+ if (_table_dir && fread(_table_dir, 1, tbl_len, _file) != tbl_len) -+ { -+ free(_table_dir); -+ _table_dir = NULL; -+ } -+ return; - } - - FileFace::~FileFace() - { - free(_table_dir); - free(_header_tbl); - if (_file) - fclose(_file); -@@ -78,17 +82,17 @@ const void *FileFace::get_table_fn(const - if (appFaceHandle == 0) return 0; - const FileFace & file_face = *static_cast<const FileFace *>(appFaceHandle); - - void *tbl; - size_t tbl_offset, tbl_len; - if (!TtfUtil::GetTableInfo(name, file_face._header_tbl, file_face._table_dir, tbl_offset, tbl_len)) - return 0; - -- if (tbl_offset + tbl_len > file_face._file_len -+ if (tbl_offset > file_face._file_len || tbl_len > file_face._file_len - tbl_offset - || fseek(file_face._file, tbl_offset, SEEK_SET) != 0) - return 0; - - tbl = malloc(tbl_len); - if (fread(tbl, 1, tbl_len, file_face._file) != tbl_len) - { - free(tbl); - return 0; -diff --git a/gfx/graphite2/src/GlyphCache.cpp b/gfx/graphite2/src/GlyphCache.cpp ---- a/gfx/graphite2/src/GlyphCache.cpp -+++ b/gfx/graphite2/src/GlyphCache.cpp -@@ -26,16 +26,17 @@ of the License or (at your option) any l - */ - #include "graphite2/Font.h" - - #include "inc/Main.h" - #include "inc/Face.h" //for the tags - #include "inc/GlyphCache.h" - #include "inc/GlyphFace.h" - #include "inc/Endian.h" -+#include "inc/bits.h" - - using namespace graphite2; - - namespace - { - // Iterator over version 1 or 2 glat entries which consist of a series of - // +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+ - // v1 |k|n|v1 |v2 |...|vN | or v2 | k | n |v1 |v2 |...|vN | -@@ -56,99 +57,127 @@ namespace - if (_n == run()) advance_entry(); - return *this; - } - _glat_iterator<W> operator ++ (int) { _glat_iterator<W> tmp(*this); operator++(); return tmp; } - - // This is strictly a >= operator. A true == operator could be - // implemented that test for overlap but it would be more expensive a - // test. -- bool operator == (const _glat_iterator<W> & rhs) { return _v >= rhs._e; } -+ bool operator == (const _glat_iterator<W> & rhs) { return _v >= rhs._e - 1; } - bool operator != (const _glat_iterator<W> & rhs) { return !operator==(rhs); } - - value_type operator * () const { - return value_type(key(), be::peek<uint16>(_v)); - } - - protected: - const byte * _e, * _v; -- ptrdiff_t _n; -+ size_t _n; - }; - - typedef _glat_iterator<uint8> glat_iterator; - typedef _glat_iterator<uint16> glat2_iterator; - } - -+const SlantBox SlantBox::empty = {0,0,0,0}; -+ - - class GlyphCache::Loader - { - public: - Loader(const Face & face, const bool dumb_font); //return result indicates success. Do not use if failed. - - operator bool () const throw(); - unsigned short int units_per_em() const throw(); - unsigned short int num_glyphs() const throw(); - unsigned short int num_attrs() const throw(); -+ bool has_boxes() const throw(); - -- const GlyphFace * read_glyph(unsigned short gid, GlyphFace &) const throw(); -+ const GlyphFace * read_glyph(unsigned short gid, GlyphFace &, int *numsubs) const throw(); -+ GlyphBox * read_box(uint16 gid, GlyphBox *curr, const GlyphFace & face) const throw(); - - CLASS_NEW_DELETE; - private: - Face::Table _head, - _hhea, - _hmtx, - _glyf, - _loca, - m_pGlat, - m_pGloc; - - bool _long_fmt; -+ bool _has_boxes; - unsigned short _num_glyphs_graphics, //i.e. boundary box and advance - _num_glyphs_attributes, - _num_attrs; // number of glyph attributes per glyph - }; - - - - GlyphCache::GlyphCache(const Face & face, const uint32 face_options) - : _glyph_loader(new Loader(face, bool(face_options & gr_face_dumbRendering))), - _glyphs(_glyph_loader && *_glyph_loader ? grzeroalloc<const GlyphFace *>(_glyph_loader->num_glyphs()) : 0), -+ _boxes(_glyph_loader && _glyph_loader->has_boxes() ? grzeroalloc<GlyphBox *>(_glyph_loader->num_glyphs()) : 0), - _num_glyphs(_glyphs ? _glyph_loader->num_glyphs() : 0), - _num_attrs(_glyphs ? _glyph_loader->num_attrs() : 0), - _upem(_glyphs ? _glyph_loader->units_per_em() : 0) - { - if ((face_options & gr_face_preloadGlyphs) && _glyph_loader && _glyphs) - { -+ int numsubs = 0; - GlyphFace * const glyphs = new GlyphFace [_num_glyphs]; - if (!glyphs) - return; - - // The 0 glyph is definately required. -- _glyphs[0] = _glyph_loader->read_glyph(0, glyphs[0]); -+ _glyphs[0] = _glyph_loader->read_glyph(0, glyphs[0], &numsubs); - - // glyphs[0] has the same address as the glyphs array just allocated, - // thus assigning the &glyphs[0] to _glyphs[0] means _glyphs[0] points - // to the entire array. - const GlyphFace * loaded = _glyphs[0]; - for (uint16 gid = 1; loaded && gid != _num_glyphs; ++gid) -- _glyphs[gid] = loaded = _glyph_loader->read_glyph(gid, glyphs[gid]); -+ _glyphs[gid] = loaded = _glyph_loader->read_glyph(gid, glyphs[gid], &numsubs); - - if (!loaded) - { - _glyphs[0] = 0; - delete [] glyphs; - } -+ else if (numsubs > 0) -+ { -+ GlyphBox * boxes = (GlyphBox *)gralloc<char>(_num_glyphs * sizeof(GlyphBox) + numsubs * 8 * sizeof(float)); -+ GlyphBox * currbox = boxes; -+ -+ for (uint16 gid = 0; currbox && gid != _num_glyphs; ++gid) -+ { -+ _boxes[gid] = currbox; -+ currbox = _glyph_loader->read_box(gid, currbox, *_glyphs[gid]); -+ } -+ if (!currbox) -+ { -+ free(boxes); -+ _boxes[0] = 0; -+ } -+ } - delete _glyph_loader; - _glyph_loader = 0; - } - - if (_glyphs && glyph(0) == 0) - { - free(_glyphs); - _glyphs = 0; -+ if (_boxes) -+ { -+ free(_boxes); -+ _boxes = 0; -+ } - _num_glyphs = _num_attrs = _upem = 0; - } - } - - - GlyphCache::~GlyphCache() - { - if (_glyphs) -@@ -158,91 +187,130 @@ GlyphCache::~GlyphCache() - const GlyphFace * * g = _glyphs; - for(unsigned short n = _num_glyphs; n; --n, ++g) - delete *g; - } - else - delete [] _glyphs[0]; - free(_glyphs); - } -+ if (_boxes) -+ { -+ if (_glyph_loader) -+ { -+ GlyphBox * * g = _boxes; -+ for (uint16 n = _num_glyphs; n; --n, ++g) -+ free(*g); -+ } -+ else -+ free(_boxes[0]); -+ free(_boxes); -+ } - delete _glyph_loader; - } - - const GlyphFace *GlyphCache::glyph(unsigned short glyphid) const //result may be changed by subsequent call with a different glyphid - { - const GlyphFace * & p = _glyphs[glyphid]; - if (p == 0 && _glyph_loader) - { -+ int numsubs = 0; - GlyphFace * g = new GlyphFace(); -- if (g) p = _glyph_loader->read_glyph(glyphid, *g); -+ if (g) p = _glyph_loader->read_glyph(glyphid, *g, &numsubs); - if (!p) - { - delete g; - return *_glyphs; - } -+ if (_boxes) -+ { -+ _boxes[glyphid] = (GlyphBox *)gralloc<char>(sizeof(GlyphBox) + 8 * numsubs * sizeof(float)); -+ if (!_glyph_loader->read_box(glyphid, _boxes[glyphid], *_glyphs[glyphid])) -+ { -+ free(_boxes[glyphid]); -+ _boxes[glyphid] = 0; -+ } -+ } - } - return p; - } - - - - GlyphCache::Loader::Loader(const Face & face, const bool dumb_font) - : _head(face, Tag::head), - _hhea(face, Tag::hhea), - _hmtx(face, Tag::hmtx), - _glyf(face, Tag::glyf), - _loca(face, Tag::loca), - _long_fmt(false), -+ _has_boxes(false), - _num_glyphs_graphics(0), - _num_glyphs_attributes(0), - _num_attrs(0) - { - if (!operator bool()) - return; - - const Face::Table maxp = Face::Table(face, Tag::maxp); - if (!maxp) { _head = Face::Table(); return; } - - _num_glyphs_graphics = TtfUtil::GlyphCount(maxp); - // This will fail if the number of glyphs is wildly out of range. -- if (_glyf && TtfUtil::LocaLookup(_num_glyphs_graphics-1, _loca, _loca.size(), _head) == size_t(-1)) -+ if (_glyf && TtfUtil::LocaLookup(_num_glyphs_graphics-1, _loca, _loca.size(), _head) == size_t(-2)) - { - _head = Face::Table(); - return; - } - - if (!dumb_font) - { -- if ((m_pGlat = Face::Table(face, Tag::Glat)) == NULL -+ if ((m_pGlat = Face::Table(face, Tag::Glat, 0x00030000)) == NULL - || (m_pGloc = Face::Table(face, Tag::Gloc)) == NULL - || m_pGloc.size() < 6) - { - _head = Face::Table(); - return; - } - const byte * p = m_pGloc; -- const int version = be::read<uint32>(p); -+ int version = be::read<uint32>(p); - const uint16 flags = be::read<uint16>(p); - _num_attrs = be::read<uint16>(p); - // We can accurately calculate the number of attributed glyphs by - // subtracting the length of the attribids array (numAttribs long if present) - // and dividing by either 2 or 4 depending on shor or lonf format - _long_fmt = flags & 1; -- _num_glyphs_attributes = (m_pGloc.size() -+ int tmpnumgattrs = (m_pGloc.size() - - (p - m_pGloc) - - sizeof(uint16)*(flags & 0x2 ? _num_attrs : 0)) - / (_long_fmt ? sizeof(uint32) : sizeof(uint16)) - 1; - -- if (version != 0x00010000 -+ if (version >= 0x00020000 || tmpnumgattrs < 0 || tmpnumgattrs > 65535 - || _num_attrs == 0 || _num_attrs > 0x3000 // is this hard limit appropriate? -- || _num_glyphs_graphics > _num_glyphs_attributes) -+ || _num_glyphs_graphics > tmpnumgattrs) - { - _head = Face::Table(); - return; - } -+ -+ _num_glyphs_attributes = static_cast<unsigned short>(tmpnumgattrs); -+ p = m_pGlat; -+ version = be::read<uint32>(p); -+ if (version >= 0x00040000) // reject Glat tables that are too new -+ { -+ _head = Face::Table(); -+ return; -+ } -+ else if (version >= 0x00030000) -+ { -+ unsigned int glatflags = be::read<uint32>(p); -+ _has_boxes = glatflags & 1; -+ // delete this once the compiler is fixed -+ _has_boxes = true; -+ } - } - } - - inline - GlyphCache::Loader::operator bool () const throw() - { - return _head && _hhea && _hmtx && !(bool(_glyf) != bool(_loca)); - } -@@ -260,34 +328,44 @@ unsigned short int GlyphCache::Loader::n - } - - inline - unsigned short int GlyphCache::Loader::num_attrs() const throw() - { - return _num_attrs; - } - --const GlyphFace * GlyphCache::Loader::read_glyph(unsigned short glyphid, GlyphFace & glyph) const throw() -+inline -+bool GlyphCache::Loader::has_boxes () const throw() -+{ -+ return _has_boxes; -+} -+ -+const GlyphFace * GlyphCache::Loader::read_glyph(unsigned short glyphid, GlyphFace & glyph, int *numsubs) const throw() - { - Rect bbox; - Position advance; - - if (glyphid < _num_glyphs_graphics) - { - int nLsb; - unsigned int nAdvWid; - if (_glyf) - { - int xMin, yMin, xMax, yMax; - size_t locidx = TtfUtil::LocaLookup(glyphid, _loca, _loca.size(), _head); - void *pGlyph = TtfUtil::GlyfLookup(_glyf, locidx, _glyf.size()); - - if (pGlyph && TtfUtil::GlyfBox(pGlyph, xMin, yMin, xMax, yMax)) -+ { -+ if ((xMin > xMax) || (yMin > yMax)) -+ return 0; - bbox = Rect(Position(static_cast<float>(xMin), static_cast<float>(yMin)), - Position(static_cast<float>(xMax), static_cast<float>(yMax))); -+ } - } - if (TtfUtil::HorMetrics(glyphid, _hmtx, _hmtx.size(), _hhea, nLsb, nAdvWid)) - advance = Position(static_cast<float>(nAdvWid), 0); - } - - if (glyphid < _num_glyphs_attributes) - { - const byte * gloc = m_pGloc; -@@ -307,35 +385,95 @@ const GlyphFace * GlyphCache::Loader::re - glocs = be::read<uint16>(gloc); - gloce = be::peek<uint16>(gloc); - } - - if (glocs >= m_pGlat.size() || gloce > m_pGlat.size()) - return 0; - - const uint32 glat_version = be::peek<uint32>(m_pGlat); -+ if (glat_version == 0x00030000) -+ { -+ const byte * p = m_pGlat + glocs; -+ uint16 bmap = be::read<uint16>(p); -+ int num = bit_set_count((uint32)bmap); -+ if (numsubs) *numsubs += num; -+ glocs += 6 + 8 * num; -+ if (glocs > gloce) -+ return 0; -+ } - if (glat_version < 0x00020000) - { - if (gloce - glocs < 2*sizeof(byte)+sizeof(uint16) - || gloce - glocs > _num_attrs*(2*sizeof(byte)+sizeof(uint16))) -- { -- return 0; -- } -- -+ return 0; - new (&glyph) GlyphFace(bbox, advance, glat_iterator(m_pGlat + glocs), glat_iterator(m_pGlat + gloce)); - } - else - { -- if (gloce - glocs < 3*sizeof(uint16) -- || gloce - glocs > _num_attrs*3*sizeof(uint16)) -- { -- return 0; -- } -- -+ if (gloce - glocs < 3*sizeof(uint16) // can a glyph have no attributes? why not? -+ || gloce - glocs > _num_attrs*3*sizeof(uint16) -+ || glocs > m_pGlat.size() - 2*sizeof(uint16)) -+ return 0; - new (&glyph) GlyphFace(bbox, advance, glat2_iterator(m_pGlat + glocs), glat2_iterator(m_pGlat + gloce)); - } -- - if (!glyph.attrs() || glyph.attrs().capacity() > _num_attrs) - return 0; - } -- - return &glyph; - } -+ -+inline float scale_to(uint8 t, float zmin, float zmax) -+{ -+ return (zmin + t * (zmax - zmin) / 255); -+} -+ -+Rect readbox(Rect &b, uint8 zxmin, uint8 zymin, uint8 zxmax, uint8 zymax) -+{ -+ return Rect(Position(scale_to(zxmin, b.bl.x, b.tr.x), scale_to(zymin, b.bl.y, b.tr.y)), -+ Position(scale_to(zxmax, b.bl.x, b.tr.x), scale_to(zymax, b.bl.y, b.tr.y))); -+} -+ -+GlyphBox * GlyphCache::Loader::read_box(uint16 gid, GlyphBox *curr, const GlyphFace & glyph) const throw() -+{ -+ if (gid >= _num_glyphs_attributes) return 0; -+ -+ const byte * gloc = m_pGloc; -+ size_t glocs = 0, gloce = 0; -+ -+ be::skip<uint32>(gloc); -+ be::skip<uint16>(gloc,2); -+ if (_long_fmt) -+ { -+ be::skip<uint32>(gloc, gid); -+ glocs = be::read<uint32>(gloc); -+ gloce = be::peek<uint32>(gloc); -+ } -+ else -+ { -+ be::skip<uint16>(gloc, gid); -+ glocs = be::read<uint16>(gloc); -+ gloce = be::peek<uint16>(gloc); -+ } -+ -+ if (glocs >= m_pGlat.size() || gloce > m_pGlat.size()) -+ return 0; -+ -+ const byte * p = m_pGlat + glocs; -+ uint16 bmap = be::read<uint16>(p); -+ int num = bit_set_count((uint32)bmap); -+ -+ Rect bbox = glyph.theBBox(); -+ Rect diamax(Position(bbox.bl.x + bbox.bl.y, bbox.bl.x - bbox.tr.y), -+ Position(bbox.tr.x + bbox.tr.y, bbox.tr.x - bbox.bl.y)); -+ Rect diabound = readbox(diamax, p[0], p[2], p[1], p[3]); -+ ::new (curr) GlyphBox(num, bmap, &diabound); -+ be::skip<uint8>(p, 4); -+ -+ for (int i = 0; i < num * 2; ++i) -+ { -+ Rect box = readbox((i & 1) ? diamax : bbox, p[0], p[2], p[1], p[3]); -+ curr->addSubBox(i >> 1, i & 1, &box); -+ be::skip<uint8>(p, 4); -+ } -+ return (GlyphBox *)((char *)(curr) + sizeof(GlyphBox) + 2 * num * sizeof(Rect)); -+} -+ -diff --git a/gfx/graphite2/src/Intervals.cpp b/gfx/graphite2/src/Intervals.cpp -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/Intervals.cpp -@@ -0,0 +1,294 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2010, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+#include <algorithm> -+#include <cmath> -+#include <limits> -+ -+#include "inc/Intervals.h" -+#include "inc/Segment.h" -+#include "inc/Slot.h" -+#include "inc/debug.h" -+#include "inc/bits.h" -+ -+using namespace graphite2; -+ -+#include <cmath> -+ -+inline -+Zones::Exclusion Zones::Exclusion::split_at(float p) { -+ Exclusion r(*this); -+ r.xm = x = p; -+ return r; -+} -+ -+inline -+void Zones::Exclusion::left_trim(float p) { -+ x = p; -+} -+ -+inline -+Zones::Exclusion & Zones::Exclusion::operator += (Exclusion const & rhs) { -+ c += rhs.c; sm += rhs.sm; smx += rhs.smx; open = false; -+ return *this; -+} -+ -+inline -+uint8 Zones::Exclusion::outcode(float val) const { -+ float p = val; -+ return ((p >= xm) << 1) | (p < x); -+} -+ -+void Zones::exclude_with_margins(float xmin, float xmax, int axis) { -+ remove(xmin, xmax); -+ weightedAxis(axis, xmin-_margin_len, xmin, 0, 0, _margin_weight, xmin-_margin_len, 0, 0, false); -+ weightedAxis(axis, xmax, xmax+_margin_len, 0, 0, _margin_weight, xmax+_margin_len, 0, 0, false); -+} -+ -+namespace -+{ -+ -+inline -+bool separated(float a, float b) { -+ return a != b; -+ //return std::fabs(a-b) > std::numeric_limits<float>::epsilon(); // std::epsilon may not work. but 0.5 fails exising 64 bit tests -+ //return std::fabs(a-b) > 0.5f; -+} -+ -+} -+ -+void Zones::insert(Exclusion e) -+{ -+#if !defined GRAPHITE2_NTRACING -+ addDebug(&e); -+#endif -+ e.x = max(e.x, _pos); -+ e.xm = min(e.xm, _posm); -+ if (e.x >= e.xm) return; -+ -+ for (iterator i = _exclusions.begin(), ie = _exclusions.end(); i != ie && e.x < e.xm; ++i) -+ { -+ const uint8 oca = e.outcode(i->x), -+ ocb = e.outcode(i->xm); -+ if ((oca & ocb) != 0) continue; -+ -+ switch (oca ^ ocb) // What kind of overlap? -+ { -+ case 0: // e completely covers i -+ // split e at i.x into e1,e2 -+ // split e2 at i.mx into e2,e3 -+ // drop e1 ,i+e2, e=e3 -+ *i += e; -+ e.left_trim(i->xm); -+ break; -+ case 1: // e overlaps on the rhs of i -+ // split i at e->x into i1,i2 -+ // split e at i.mx into e1,e2 -+ // trim i1, insert i2+e1, e=e2 -+ if (!separated(i->xm, e.x)) break; -+ if (separated(i->x,e.x)) { i = _exclusions.insert(i,i->split_at(e.x)); ++i; } -+ *i += e; -+ e.left_trim(i->xm); -+ break; -+ case 2: // e overlaps on the lhs of i -+ // split e at i->x into e1,e2 -+ // split i at e.mx into i1,i2 -+ // drop e1, insert e2+i1, trim i2 -+ if (!separated(e.xm, i->x)) return; -+ if (separated(e.xm, i->xm)) i = _exclusions.insert(i,i->split_at(e.xm)); -+ *i += e; -+ return; -+ case 3: // i completely covers e -+ // split i at e.x into i1,i2 -+ // split i2 at e.mx into i2,i3 -+ // insert i1, insert e+i2 -+ if (separated(e.xm, i->xm)) i = _exclusions.insert(i,i->split_at(e.xm)); -+ i = _exclusions.insert(i, i->split_at(e.x)); -+ *++i += e; -+ return; -+ } -+ -+ ie = _exclusions.end(); -+ } -+} -+ -+ -+void Zones::remove(float x, float xm) -+{ -+#if !defined GRAPHITE2_NTRACING -+ removeDebug(x, xm); -+#endif -+ x = max(x, _pos); -+ xm = min(xm, _posm); -+ if (x >= xm) return; -+ -+ for (iterator i = _exclusions.begin(), ie = _exclusions.end(); i != ie; ++i) -+ { -+ const uint8 oca = i->outcode(x), -+ ocb = i->outcode(xm); -+ if ((oca & ocb) != 0) continue; -+ -+ switch (oca ^ ocb) // What kind of overlap? -+ { -+ case 0: // i completely covers e -+ if (separated(i->x, x)) { i = _exclusions.insert(i,i->split_at(x)); ++i; } -+ GR_FALLTHROUGH; -+ // no break -+ case 1: // i overlaps on the rhs of e -+ i->left_trim(xm); -+ return; -+ case 2: // i overlaps on the lhs of e -+ i->xm = x; -+ if (separated(i->x, i->xm)) break; -+ GR_FALLTHROUGH; -+ // no break -+ case 3: // e completely covers i -+ i = _exclusions.erase(i); -+ --i; -+ break; -+ } -+ -+ ie = _exclusions.end(); -+ } -+} -+ -+ -+Zones::const_iterator Zones::find_exclusion_under(float x) const -+{ -+ int l = 0, h = _exclusions.size(); -+ -+ while (l < h) -+ { -+ int const p = (l+h) >> 1; -+ switch (_exclusions[p].outcode(x)) -+ { -+ case 0 : return _exclusions.begin()+p; -+ case 1 : h = p; break; -+ case 2 : -+ case 3 : l = p+1; break; -+ } -+ } -+ -+ return _exclusions.begin()+l; -+} -+ -+ -+float Zones::closest(float origin, float & cost) const -+{ -+ float best_c = std::numeric_limits<float>::max(), -+ best_x = 0; -+ -+ const const_iterator start = find_exclusion_under(origin); -+ -+ // Forward scan looking for lowest cost -+ for (const_iterator i = start, ie = _exclusions.end(); i != ie; ++i) -+ if (i->track_cost(best_c, best_x, origin)) break; -+ -+ // Backward scan looking for lowest cost -+ // We start from the exclusion to the immediate left of start since we've -+ // already tested start with the right most scan above. -+ for (const_iterator i = start-1, ie = _exclusions.begin()-1; i != ie; --i) -+ if (i->track_cost(best_c, best_x, origin)) break; -+ -+ cost = (best_c == std::numeric_limits<float>::max() ? -1 : best_c); -+ return best_x; -+} -+ -+ -+// Cost and test position functions -+ -+bool Zones::Exclusion::track_cost(float & best_cost, float & best_pos, float origin) const { -+ const float p = test_position(origin), -+ localc = cost(p - origin); -+ if (open && localc > best_cost) return true; -+ -+ if (localc < best_cost) -+ { -+ best_cost = localc; -+ best_pos = p; -+ } -+ return false; -+} -+ -+inline -+float Zones::Exclusion::cost(float p) const { -+ return (sm * p - 2 * smx) * p + c; -+} -+ -+ -+float Zones::Exclusion::test_position(float origin) const { -+ if (sm < 0) -+ { -+ // sigh, test both ends and perhaps the middle too! -+ float res = x; -+ float cl = cost(x); -+ if (x < origin && xm > origin) -+ { -+ float co = cost(origin); -+ if (co < cl) -+ { -+ cl = co; -+ res = origin; -+ } -+ } -+ float cr = cost(xm); -+ return cl > cr ? xm : res; -+ } -+ else -+ { -+ float zerox = smx / sm + origin; -+ if (zerox < x) return x; -+ else if (zerox > xm) return xm; -+ else return zerox; -+ } -+} -+ -+ -+#if !defined GRAPHITE2_NTRACING -+ -+void Zones::jsonDbgOut(Segment *seg) const { -+ -+ if (_dbg) -+ { -+ for (Zones::idebugs s = dbgs_begin(), e = dbgs_end(); s != e; ++s) -+ { -+ *_dbg << json::flat << json::array -+ << objectid(dslot(seg, (Slot *)(s->_env[0]))) -+ << reinterpret_cast<ptrdiff_t>(s->_env[1]); -+ if (s->_isdel) -+ *_dbg << "remove" << Position(s->_excl.x, s->_excl.xm); -+ else -+ *_dbg << "exclude" << json::flat << json::array -+ << s->_excl.x << s->_excl.xm -+ << s->_excl.sm << s->_excl.smx << s->_excl.c -+ << json::close; -+ *_dbg << json::close; -+ } -+ } -+} -+ -+#endif -+ -diff --git a/gfx/graphite2/src/Justifier.cpp b/gfx/graphite2/src/Justifier.cpp ---- a/gfx/graphite2/src/Justifier.cpp -+++ b/gfx/graphite2/src/Justifier.cpp -@@ -26,17 +26,17 @@ of the License or (at your option) any l - */ - - #include "inc/Segment.h" - #include "graphite2/Font.h" - #include "inc/debug.h" - #include "inc/CharInfo.h" - #include "inc/Slot.h" - #include "inc/Main.h" --#include <math.h> -+#include <cmath> - - using namespace graphite2; - - class JustifyTotal { - public: - JustifyTotal() : m_numGlyphs(0), m_tStretch(0), m_tShrink(0), m_tStep(0), m_tWeight(0) {} - void accumulate(Slot *s, Segment *seg, int level); - int weight() const { return m_tWeight; } -@@ -55,37 +55,44 @@ void JustifyTotal::accumulate(Slot *s, S - { - ++m_numGlyphs; - m_tStretch += s->getJustify(seg, level, 0); - m_tShrink += s->getJustify(seg, level, 1); - m_tStep += s->getJustify(seg, level, 2); - m_tWeight += s->getJustify(seg, level, 3); - } - --float Segment::justify(Slot *pSlot, const Font *font, float width, GR_MAYBE_UNUSED justFlags flags, Slot *pFirst, Slot *pLast) -+float Segment::justify(Slot *pSlot, const Font *font, float width, GR_MAYBE_UNUSED justFlags jflags, Slot *pFirst, Slot *pLast) - { - Slot *s, *end; - float currWidth = 0.0; - const float scale = font ? font->scale() : 1.0f; - Position res; - - if (width < 0 && !(silf()->flags())) - return width; - -+ if ((m_dir & 1) != m_silf->dir() && m_silf->bidiPass() != m_silf->numPasses()) -+ { -+ reverseSlots(); -+ s = pFirst; -+ pFirst = pLast; -+ pLast = s; -+ } - if (!pFirst) pFirst = pSlot; - while (!pFirst->isBase()) pFirst = pFirst->attachedTo(); - if (!pLast) pLast = last(); - while (!pLast->isBase()) pLast = pLast->attachedTo(); - const float base = pFirst->origin().x / scale; - width = width / scale; -- if ((flags & gr_justEndInline) == 0) -+ if ((jflags & gr_justEndInline) == 0) - { - do { - Rect bbox = theGlyphBBoxTemporary(pLast->glyph()); -- if (bbox.bl.x != 0. || bbox.bl.y != 0. || bbox.tr.x != 0. || bbox.tr.y == 0.) -+ if (bbox.bl.x != 0.f || bbox.bl.y != 0.f || bbox.tr.x != 0.f || bbox.tr.y == 0.f) - break; - pLast = pLast->prev(); - } while (pLast != pFirst); - } - - end = pLast->nextSibling(); - pFirst = pFirst->nextSibling(); - -@@ -111,28 +118,27 @@ float Segment::justify(Slot *pSlot, cons - s->setJustify(this, 0, 3, 1); - s->setJustify(this, 0, 2, 1); - s->setJustify(this, 0, 0, -1); - } - } - ++numLevels; - } - -- JustifyTotal *stats = new JustifyTotal[numLevels]; -- if (!stats) return -1.0; -+ Vector<JustifyTotal> stats(numLevels); - for (s = pFirst; s != end; s = s->nextSibling()) - { - float w = s->origin().x / scale + s->advance() - base; - if (w > currWidth) currWidth = w; - for (int j = 0; j < numLevels; ++j) - stats[j].accumulate(s, this, j); - s->just(0); - } - -- for (int i = (width < 0.0) ? -1 : numLevels - 1; i >= 0; --i) -+ for (int i = (width < 0.0f) ? -1 : numLevels - 1; i >= 0; --i) - { - float diff; - float error = 0.; - float diffpw; - int tWeight = stats[i].weight(); - - do { - error = 0.; -@@ -154,29 +160,29 @@ float Segment::justify(Slot *pSlot, cons - } - else - { - float max = uint16(s->getJustify(this, i, 1)); - if (i == 0) max += s->just(); - if (-pref > max) pref = -max; - else tWeight += w; - } -- int actual = step ? int(pref / step) * step : int(pref); -+ int actual = int(pref / step) * step; - - if (actual) - { - error += diffpw * w - actual; - if (i == 0) - s->just(s->just() + actual); - else - s->setJustify(this, i, 4, actual); - } - } - currWidth += diff - error; -- } while (i == 0 && int(abs(error)) > 0 && tWeight); -+ } while (i == 0 && int(std::abs(error)) > 0 && tWeight); - } - - Slot *oldFirst = m_first; - Slot *oldLast = m_last; - if (silf()->flags() & 1) - { - m_first = pSlot = addLineEnd(pSlot); - m_last = pLast = addLineEnd(end); -@@ -192,41 +198,44 @@ float Segment::justify(Slot *pSlot, cons - #if !defined GRAPHITE2_NTRACING - json * const dbgout = m_face->logger(); - if (dbgout) - *dbgout << json::object - << "justifies" << objectid(this) - << "passes" << json::array; - #endif - -- if (m_silf->justificationPass() != m_silf->positionPass() && (width >= 0. || (silf()->flags() & 1))) -+ if (m_silf->justificationPass() != m_silf->positionPass() && (width >= 0.f || (silf()->flags() & 1))) - m_silf->runGraphite(this, m_silf->justificationPass(), m_silf->positionPass()); - - #if !defined GRAPHITE2_NTRACING - if (dbgout) - { - *dbgout << json::item << json::close; // Close up the passes array -- positionSlots(NULL, pSlot, pLast); -+ positionSlots(NULL, pSlot, pLast, m_dir); - Slot *lEnd = pLast->nextSibling(); - *dbgout << "output" << json::array; - for(Slot * t = pSlot; t != lEnd; t = t->next()) - *dbgout << dslot(this, t); - *dbgout << json::close << json::close; - } - #endif - -- res = positionSlots(font, pSlot, pLast); -+ res = positionSlots(font, pSlot, pLast, m_dir); - - if (silf()->flags() & 1) - { - delLineEnd(m_first); - delLineEnd(m_last); - } - m_first = oldFirst; - m_last = oldLast; -+ -+ if ((m_dir & 1) != m_silf->dir() && m_silf->bidiPass() != m_silf->numPasses()) -+ reverseSlots(); - return res.x; - } - - Slot *Segment::addLineEnd(Slot *nSlot) - { - Slot *eSlot = newSlot(); - if (!eSlot) return NULL; - const uint16 gid = silf()->endLineGlyphid(); -diff --git a/gfx/graphite2/src/Pass.cpp b/gfx/graphite2/src/Pass.cpp ---- a/gfx/graphite2/src/Pass.cpp -+++ b/gfx/graphite2/src/Pass.cpp -@@ -26,91 +26,120 @@ of the License or (at your option) any l - */ - #include "inc/Main.h" - #include "inc/debug.h" - #include "inc/Endian.h" - #include "inc/Pass.h" - #include <cstring> - #include <cstdlib> - #include <cassert> -+#include <cmath> - #include "inc/Segment.h" - #include "inc/Code.h" - #include "inc/Rule.h" - #include "inc/Error.h" -+#include "inc/Collider.h" - - using namespace graphite2; - using vm::Machine; - typedef Machine::Code Code; - -+enum KernCollison -+{ -+ None = 0, -+ CrossSpace = 1, -+ InWord = 2, -+ reserved = 3 -+}; - - Pass::Pass() - : m_silf(0), - m_cols(0), - m_rules(0), - m_ruleMap(0), - m_startStates(0), - m_transitions(0), - m_states(0), -- m_flags(0), -+ m_codes(0), -+ m_progs(0), -+ m_numCollRuns(0), -+ m_kernColls(0), - m_iMaxLoop(0), - m_numGlyphs(0), - m_numRules(0), - m_numStates(0), - m_numTransition(0), - m_numSuccess(0), -+ m_successStart(0), - m_numColumns(0), - m_minPreCtxt(0), -- m_maxPreCtxt(0) -+ m_maxPreCtxt(0), -+ m_colThreshold(0), -+ m_isReverseDir(false) - { - } - - Pass::~Pass() - { - free(m_cols); - free(m_startStates); - free(m_transitions); - free(m_states); - free(m_ruleMap); - -- delete [] m_rules; -+ if (m_rules) delete [] m_rules; -+ if (m_codes) delete [] m_codes; -+ free(m_progs); - } - --bool Pass::readPass(const byte * const pass_start, size_t pass_length, size_t subtable_base, GR_MAYBE_UNUSED Face & face, Error &e) -+bool Pass::readPass(const byte * const pass_start, size_t pass_length, size_t subtable_base, -+ GR_MAYBE_UNUSED Face & face, passtype pt, GR_MAYBE_UNUSED uint32 version, Error &e) - { -- const byte * p = pass_start, -- * const pass_end = p + pass_length; -+ const byte * p = pass_start, -+ * const pass_end = p + pass_length; - size_t numRanges; - - if (e.test(pass_length < 40, E_BADPASSLENGTH)) return face.error(e); - // Read in basic values -- m_flags = be::read<byte>(p); -+ const byte flags = be::read<byte>(p); -+ if (e.test((flags & 0x1f) && -+ (pt < PASS_TYPE_POSITIONING || !m_silf->aCollision() || !face.glyphs().hasBoxes()), -+ E_BADCOLLISIONPASS)) -+ return face.error(e); -+ m_numCollRuns = flags & 0x7; -+ m_kernColls = (flags >> 3) & 0x3; -+ m_isReverseDir = (flags >> 5) & 0x1; - m_iMaxLoop = be::read<byte>(p); -+ if (m_iMaxLoop < 1) m_iMaxLoop = 1; - be::skip<byte>(p,2); // skip maxContext & maxBackup - m_numRules = be::read<uint16>(p); -+ if (e.test(!m_numRules && m_numCollRuns == 0, E_BADEMPTYPASS)) return face.error(e); - be::skip<uint16>(p); // fsmOffset - not sure why we would want this - const byte * const pcCode = pass_start + be::read<uint32>(p) - subtable_base, - * const rcCode = pass_start + be::read<uint32>(p) - subtable_base, - * const aCode = pass_start + be::read<uint32>(p) - subtable_base; - be::skip<uint32>(p); - m_numStates = be::read<uint16>(p); - m_numTransition = be::read<uint16>(p); - m_numSuccess = be::read<uint16>(p); - m_numColumns = be::read<uint16>(p); - numRanges = be::read<uint16>(p); - be::skip<uint16>(p, 3); // skip searchRange, entrySelector & rangeShift. - assert(p - pass_start == 40); - // Perform some sanity checks. - if ( e.test(m_numTransition > m_numStates, E_BADNUMTRANS) - || e.test(m_numSuccess > m_numStates, E_BADNUMSUCCESS) - || e.test(m_numSuccess + m_numTransition < m_numStates, E_BADNUMSTATES) -- || e.test(numRanges == 0, E_NORANGES)) -+ || e.test(m_numRules && numRanges == 0, E_NORANGES) -+ || e.test(m_numColumns > 0x7FFF, E_BADNUMCOLUMNS)) - return face.error(e); - - m_successStart = m_numStates - m_numSuccess; -- if (e.test(p + numRanges * 6 - 4 > pass_end, E_BADPASSLENGTH)) return face.error(e); -+ // test for beyond end - 1 to account for reading uint16 -+ if (e.test(p + numRanges * 6 - 2 > pass_end, E_BADPASSLENGTH)) return face.error(e); - m_numGlyphs = be::peek<uint16>(p + numRanges * 6 - 4) + 1; - // Calculate the start of various arrays. - const byte * const ranges = p; - be::skip<uint16>(p, numRanges*3); - const byte * const o_rule_map = p; - be::skip<uint16>(p, m_numSuccess + 1); - - // More sanity checks -@@ -126,108 +155,141 @@ bool Pass::readPass(const byte * const p - m_maxPreCtxt = be::read<uint8>(p); - if (e.test(m_minPreCtxt > m_maxPreCtxt, E_BADCTXTLENBOUNDS)) return face.error(e); - const byte * const start_states = p; - be::skip<int16>(p, m_maxPreCtxt - m_minPreCtxt + 1); - const uint16 * const sort_keys = reinterpret_cast<const uint16 *>(p); - be::skip<uint16>(p, m_numRules); - const byte * const precontext = p; - be::skip<byte>(p, m_numRules); -- be::skip<byte>(p); // skip reserved byte - -- if (e.test(p + sizeof(uint16) > pass_end, E_BADCTXTLENS)) return face.error(e); -+ if (e.test(p + sizeof(uint16) + sizeof(uint8) > pass_end, E_BADCTXTLENS)) return face.error(e); -+ m_colThreshold = be::read<uint8>(p); -+ if (m_colThreshold == 0) m_colThreshold = 10; // A default - const size_t pass_constraint_len = be::read<uint16>(p); -+ - const uint16 * const o_constraint = reinterpret_cast<const uint16 *>(p); - be::skip<uint16>(p, m_numRules + 1); - const uint16 * const o_actions = reinterpret_cast<const uint16 *>(p); - be::skip<uint16>(p, m_numRules + 1); - const byte * const states = p; -+ if (e.test(p + 2u*m_numTransition*m_numColumns >= pass_end, E_BADPASSLENGTH)) return face.error(e); - be::skip<int16>(p, m_numTransition*m_numColumns); -- be::skip<byte>(p); // skip reserved byte -- if (e.test(p != pcCode, E_BADPASSCCODEPTR) || e.test(p >= pass_end, E_BADPASSLENGTH)) return face.error(e); -+ be::skip<uint8>(p); -+ if (e.test(p != pcCode, E_BADPASSCCODEPTR)) return face.error(e); - be::skip<byte>(p, pass_constraint_len); -- if (e.test(p != rcCode, E_BADRULECCODEPTR) || e.test(p >= pass_end, E_BADPASSLENGTH) -+ if (e.test(p != rcCode, E_BADRULECCODEPTR) - || e.test(size_t(rcCode - pcCode) != pass_constraint_len, E_BADCCODELEN)) return face.error(e); - be::skip<byte>(p, be::peek<uint16>(o_constraint + m_numRules)); -- if (e.test(p != aCode, E_BADACTIONCODEPTR) || e.test(p >= pass_end, E_BADPASSLENGTH)) return face.error(e); -+ if (e.test(p != aCode, E_BADACTIONCODEPTR)) return face.error(e); - be::skip<byte>(p, be::peek<uint16>(o_actions + m_numRules)); - - // We should be at the end or within the pass - if (e.test(p > pass_end, E_BADPASSLENGTH)) return face.error(e); - - // Load the pass constraint if there is one. - if (pass_constraint_len) - { - face.error_context(face.error_context() + 1); - m_cPConstraint = vm::Machine::Code(true, pcCode, pcCode + pass_constraint_len, -- precontext[0], be::peek<uint16>(sort_keys), *m_silf, face); -+ precontext[0], be::peek<uint16>(sort_keys), *m_silf, face, PASS_TYPE_UNKNOWN); - if (e.test(!m_cPConstraint, E_OUTOFMEM) -- || e.test(m_cPConstraint.status(), m_cPConstraint.status() + E_CODEFAILURE)) -+ || e.test(!m_cPConstraint, m_cPConstraint.status() + E_CODEFAILURE)) - return face.error(e); - face.error_context(face.error_context() - 1); - } -- if (!readRanges(ranges, numRanges, e)) return face.error(e); -- if (!readRules(rule_map, numEntries, precontext, sort_keys, -- o_constraint, rcCode, o_actions, aCode, face, e)) return false; -+ if (m_numRules) -+ { -+ if (!readRanges(ranges, numRanges, e)) return face.error(e); -+ if (!readRules(rule_map, numEntries, precontext, sort_keys, -+ o_constraint, rcCode, o_actions, aCode, face, pt, e)) return false; -+ } - #ifdef GRAPHITE2_TELEMETRY - telemetry::category _states_cat(face.tele.states); - #endif -- return readStates(start_states, states, o_rule_map, face, e); -+ return m_numRules ? readStates(start_states, states, o_rule_map, face, e) : true; - } - - - bool Pass::readRules(const byte * rule_map, const size_t num_entries, - const byte *precontext, const uint16 * sort_key, - const uint16 * o_constraint, const byte *rc_data, - const uint16 * o_action, const byte * ac_data, -- Face & face, Error &e) -+ Face & face, passtype pt, Error &e) - { - const byte * const ac_data_end = ac_data + be::peek<uint16>(o_action + m_numRules); - const byte * const rc_data_end = rc_data + be::peek<uint16>(o_constraint + m_numRules); - -- if (e.test(!(m_rules = new Rule [m_numRules]), E_OUTOFMEM)) return face.error(e); - precontext += m_numRules; - sort_key += m_numRules; - o_constraint += m_numRules; - o_action += m_numRules; - - // Load rules. - const byte * ac_begin = 0, * rc_begin = 0, - * ac_end = ac_data + be::peek<uint16>(o_action), - * rc_end = rc_data + be::peek<uint16>(o_constraint); -+ -+ // Allocate pools -+ m_rules = new Rule [m_numRules]; -+ m_codes = new Code [m_numRules*2]; -+ const size_t prog_pool_sz = vm::Machine::Code::estimateCodeDataOut(ac_end - ac_data + rc_end - rc_data); -+ m_progs = gralloc<byte>(prog_pool_sz); -+ byte * prog_pool_free = m_progs, -+ * prog_pool_end = m_progs + prog_pool_sz; -+ if (e.test(!(m_rules && m_codes && m_progs), E_OUTOFMEM)) return face.error(e); -+ - Rule * r = m_rules + m_numRules - 1; - for (size_t n = m_numRules; n; --n, --r, ac_end = ac_begin, rc_end = rc_begin) - { - face.error_context((face.error_context() & 0xFFFF00) + EC_ARULE + ((n - 1) << 24)); - r->preContext = *--precontext; - r->sort = be::peek<uint16>(--sort_key); - #ifndef NDEBUG - r->rule_idx = n - 1; - #endif - if (r->sort > 63 || r->preContext >= r->sort || r->preContext > m_maxPreCtxt || r->preContext < m_minPreCtxt) - return false; - ac_begin = ac_data + be::peek<uint16>(--o_action); - --o_constraint; - rc_begin = be::peek<uint16>(o_constraint) ? rc_data + be::peek<uint16>(o_constraint) : rc_end; - - if (ac_begin > ac_end || ac_begin > ac_data_end || ac_end > ac_data_end -- || rc_begin > rc_end || rc_begin > rc_data_end || rc_end > rc_data_end) -+ || rc_begin > rc_end || rc_begin > rc_data_end || rc_end > rc_data_end -+ || vm::Machine::Code::estimateCodeDataOut(ac_end - ac_begin + rc_end - rc_begin) > size_t(prog_pool_end - prog_pool_free)) - return false; -- r->action = new vm::Machine::Code(false, ac_begin, ac_end, r->preContext, r->sort, *m_silf, face); -- r->constraint = new vm::Machine::Code(true, rc_begin, rc_end, r->preContext, r->sort, *m_silf, face); -+ r->action = new (m_codes+n*2-2) vm::Machine::Code(false, ac_begin, ac_end, r->preContext, r->sort, *m_silf, face, pt, &prog_pool_free); -+ r->constraint = new (m_codes+n*2-1) vm::Machine::Code(true, rc_begin, rc_end, r->preContext, r->sort, *m_silf, face, pt, &prog_pool_free); - - if (e.test(!r->action || !r->constraint, E_OUTOFMEM) - || e.test(r->action->status() != Code::loaded, r->action->status() + E_CODEFAILURE) - || e.test(r->constraint->status() != Code::loaded, r->constraint->status() + E_CODEFAILURE) - || e.test(!r->constraint->immutable(), E_MUTABLECCODE)) - return face.error(e); - } - -+ byte * moved_progs = static_cast<byte *>(realloc(m_progs, prog_pool_free - m_progs)); -+ if (e.test(!moved_progs, E_OUTOFMEM)) -+ { -+ if (prog_pool_free - m_progs == 0) m_progs = 0; -+ return face.error(e); -+ } -+ -+ if (moved_progs != m_progs) -+ { -+ for (Code * c = m_codes, * const ce = c + m_numRules*2; c != ce; ++c) -+ { -+ c->externalProgramMoved(moved_progs - m_progs); -+ } -+ m_progs = moved_progs; -+ } -+ - // Load the rule entries map - face.error_context((face.error_context() & 0xFFFF00) + EC_APASS); -+ //TODO: Coverty: 1315804: FORWARD_NULL - RuleEntry * re = m_ruleMap = gralloc<RuleEntry>(num_entries); - if (e.test(!re, E_OUTOFMEM)) return face.error(e); - for (size_t n = num_entries; n; --n, ++re) - { - const ptrdiff_t rn = be::read<uint16>(rule_map); - if (e.test(rn >= m_numRules, E_BADRULENUM)) return face.error(e); - re->rule = m_rules + rn; - } -@@ -320,43 +382,69 @@ bool Pass::readRanges(const byte * range - - if (e.test(ci != ci_end, E_BADRANGE)) - return false; - } - return true; - } - - --void Pass::runGraphite(Machine & m, FiniteStateMachine & fsm) const -+bool Pass::runGraphite(vm::Machine & m, FiniteStateMachine & fsm, bool reverse) const - { - Slot *s = m.slotMap().segment.first(); -- if (!s || !testPassConstraint(m)) return; -- Slot *currHigh = s->next(); -+ if (!s || !testPassConstraint(m)) return true; -+ if (reverse) -+ { -+ m.slotMap().segment.reverseSlots(); -+ s = m.slotMap().segment.first(); -+ } -+ if (m_numRules) -+ { -+ Slot *currHigh = s->next(); - - #if !defined GRAPHITE2_NTRACING -- if (fsm.dbgout) *fsm.dbgout << "rules" << json::array; -- json::closer rules_array_closer(fsm.dbgout); -+ if (fsm.dbgout) *fsm.dbgout << "rules" << json::array; -+ json::closer rules_array_closer(fsm.dbgout); - #endif - -- m.slotMap().highwater(currHigh); -- int lc = m_iMaxLoop; -- do -+ m.slotMap().highwater(currHigh); -+ int lc = m_iMaxLoop; -+ do -+ { -+ findNDoRule(s, m, fsm); -+ if (s && (s == m.slotMap().highwater() || m.slotMap().highpassed() || --lc == 0)) { -+ if (!lc) -+ s = m.slotMap().highwater(); -+ lc = m_iMaxLoop; -+ if (s) -+ m.slotMap().highwater(s->next()); -+ } -+ } while (s); -+ } -+ //TODO: Use enums for flags -+ const bool collisions = m_numCollRuns || m_kernColls; -+ -+ if (!collisions || !m.slotMap().segment.hasCollisionInfo()) -+ return true; -+ -+ if (m_numCollRuns) - { -- findNDoRule(s, m, fsm); -- if (s && (m.slotMap().highpassed() || s == m.slotMap().highwater() || --lc == 0)) { -- if (!lc) -- { --// if (dbgout) *dbgout << json::item << json::flat << rule_event(-1, s, 1); -- s = m.slotMap().highwater(); -- } -- lc = m_iMaxLoop; -- if (s) -- m.slotMap().highwater(s->next()); -+ if (!(m.slotMap().segment.flags() & Segment::SEG_INITCOLLISIONS)) -+ { -+ m.slotMap().segment.positionSlots(0, 0, 0, m.slotMap().dir(), true); -+// m.slotMap().segment.flags(m.slotMap().segment.flags() | Segment::SEG_INITCOLLISIONS); - } -- } while (s); -+ if (!collisionShift(&m.slotMap().segment, m.slotMap().dir(), fsm.dbgout)) -+ return false; -+ } -+ if ((m_kernColls) && !collisionKern(&m.slotMap().segment, m.slotMap().dir(), fsm.dbgout)) -+ return false; -+ if (collisions && !collisionFinish(&m.slotMap().segment, fsm.dbgout)) -+ return false; -+ return true; - } - - bool Pass::runFSM(FiniteStateMachine& fsm, Slot * slot) const - { - fsm.reset(slot, m_maxPreCtxt); - if (fsm.slots.context() < m_minPreCtxt) - return false; - -@@ -419,18 +507,18 @@ void Pass::findNDoRule(Slot * & slot, Ma - { - if (fsm.rules.size() != 0) - { - *fsm.dbgout << json::item << json::object; - dumpRuleEventConsidered(fsm, *r); - if (r != re) - { - const int adv = doAction(r->rule->action, slot, m); -- dumpRuleEventOutput(fsm, *r->rule, slot); -- if (r->rule->action->deletes()) fsm.slots.collectGarbage(); -+ dumpRuleEventOutput(fsm, m, *r->rule, slot); -+ if (r->rule->action->deletes()) fsm.slots.collectGarbage(slot); - adjustSlot(adv, slot, fsm.slots); - *fsm.dbgout << "cursor" << objectid(dslot(&fsm.slots.segment, slot)) - << json::close; // Close RuelEvent object - - return; - } - else - { -@@ -442,47 +530,49 @@ void Pass::findNDoRule(Slot * & slot, Ma - } - } - else - #endif - { - if (r != re) - { - const int adv = doAction(r->rule->action, slot, m); -- if (r->rule->action->deletes()) fsm.slots.collectGarbage(); -+ if (r->rule->action->deletes()) fsm.slots.collectGarbage(slot); - adjustSlot(adv, slot, fsm.slots); - return; - } - } - } - - slot = slot->next(); -+ return; - } - - #if !defined GRAPHITE2_NTRACING - - void Pass::dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const - { - *fsm.dbgout << "considered" << json::array; - for (const RuleEntry *r = fsm.rules.begin(); r != &re; ++r) - { -- if (r->rule->preContext > fsm.slots.context()) continue; -- *fsm.dbgout << json::flat << json::object -- << "id" << r->rule - m_rules -+ if (r->rule->preContext > fsm.slots.context()) -+ continue; -+ *fsm.dbgout << json::flat << json::object -+ << "id" << r->rule - m_rules - << "failed" << true - << "input" << json::flat << json::object - << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, -r->rule->preContext))) - << "length" << r->rule->sort - << json::close // close "input" - << json::close; // close Rule object - } - } - - --void Pass::dumpRuleEventOutput(const FiniteStateMachine & fsm, const Rule & r, Slot * const last_slot) const -+void Pass::dumpRuleEventOutput(const FiniteStateMachine & fsm, Machine & m, const Rule & r, Slot * const last_slot) const - { - *fsm.dbgout << json::item << json::flat << json::object - << "id" << &r - m_rules - << "failed" << false - << "input" << json::flat << json::object - << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, 0))) - << "length" << r.sort - r.preContext - << json::close // close "input" -@@ -490,17 +580,17 @@ void Pass::dumpRuleEventOutput(const Fin - << json::close // close considered array - << "output" << json::object - << "range" << json::flat << json::object - << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, 0))) - << "end" << objectid(dslot(&fsm.slots.segment, last_slot)) - << json::close // close "input" - << "slots" << json::array; - const Position rsb_prepos = last_slot ? last_slot->origin() : fsm.slots.segment.advance(); -- fsm.slots.segment.positionSlots(0); -+ fsm.slots.segment.positionSlots(0, 0, 0, m.slotMap().dir()); - - for(Slot * slot = output_slot(fsm.slots, 0); slot != last_slot; slot = slot->next()) - *fsm.dbgout << dslot(&fsm.slots.segment, slot); - *fsm.dbgout << json::close // close "slots" - << "postshift" << (last_slot ? last_slot->origin() : fsm.slots.segment.advance()) - rsb_prepos - << json::close; // close "output" object - - } -@@ -546,22 +636,26 @@ bool Pass::testConstraint(const Rule & r - if (!ret || m.status() != Machine::finished) - return false; - } - - return true; - } - - --void SlotMap::collectGarbage() -+void SlotMap::collectGarbage(Slot * &aSlot) - { - for(Slot **s = begin(), *const *const se = end() - 1; s != se; ++s) { - Slot *& slot = *s; - if(slot->isDeleted() || slot->isCopied()) -+ { -+ if (slot == aSlot) -+ aSlot = slot->prev() ? slot->prev() : slot->next(); - segment.freeSlot(slot); -+ } - } - } - - - - int Pass::doAction(const Code *codeptr, Slot * & slot_out, vm::Machine & m) const - { - assert(codeptr); -@@ -581,40 +675,412 @@ int Pass::doAction(const Code *codeptr, - - slot_out = *map; - return ret; - } - - - void Pass::adjustSlot(int delta, Slot * & slot_out, SlotMap & smap) const - { -- if (delta < 0) -+ if (!slot_out) - { -- if (!slot_out) -+ if (smap.highpassed() || slot_out == smap.highwater()) - { - slot_out = smap.segment.last(); - ++delta; -- if (smap.highpassed() && !smap.highwater()) -+ if (!smap.highwater()) - smap.highpassed(false); - } -+ else -+ { -+ slot_out = smap.segment.first(); -+ --delta; -+ } -+ } -+ if (delta < 0) -+ { - while (++delta <= 0 && slot_out) - { - if (smap.highpassed() && smap.highwater() == slot_out) - smap.highpassed(false); - slot_out = slot_out->prev(); - } - } - else if (delta > 0) - { -- if (!slot_out) -- { -- slot_out = smap.segment.first(); -- --delta; -- } - while (--delta >= 0 && slot_out) - { - slot_out = slot_out->next(); - if (slot_out == smap.highwater() && slot_out) - smap.highpassed(true); - } - } - } - -+bool Pass::collisionShift(Segment *seg, int dir, json * const dbgout) const -+{ -+ ShiftCollider shiftcoll(dbgout); -+ // bool isfirst = true; -+ bool hasCollisions = false; -+ Slot *start = seg->first(); // turn on collision fixing for the first slot -+ Slot *end = NULL; -+ bool moved = false; -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << "collisions" << json::array -+ << json::flat << json::object << "num-loops" << m_numCollRuns << json::close; -+#endif -+ -+ while (start) -+ { -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) *dbgout << json::object << "phase" << "1" << "moves" << json::array; -+#endif -+ hasCollisions = false; -+ end = NULL; -+ // phase 1 : position shiftable glyphs, ignoring kernable glyphs -+ for (Slot *s = start; s; s = s->next()) -+ { -+ const SlotCollision * c = seg->collisionInfo(s); -+ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_KERN)) == SlotCollision::COLL_FIX -+ && !resolveCollisions(seg, s, start, shiftcoll, false, dir, moved, hasCollisions, dbgout)) -+ return false; -+ if (s != start && (c->flags() & SlotCollision::COLL_END)) -+ { -+ end = s->next(); -+ break; -+ } -+ } -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << json::close << json::close; // phase-1 -+#endif -+ -+ // phase 2 : loop until happy. -+ for (int i = 0; i < m_numCollRuns - 1; ++i) -+ { -+ if (hasCollisions || moved) -+ { -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << json::object << "phase" << "2a" << "loop" << i << "moves" << json::array; -+#endif -+ // phase 2a : if any shiftable glyphs are in collision, iterate backwards, -+ // fixing them and ignoring other non-collided glyphs. Note that this handles ONLY -+ // glyphs that are actually in collision from phases 1 or 2b, and working backwards -+ // has the intended effect of breaking logjams. -+ if (hasCollisions) -+ { -+ hasCollisions = false; -+ #if 0 -+ moved = true; -+ for (Slot *s = start; s != end; s = s->next()) -+ { -+ SlotCollision * c = seg->collisionInfo(s); -+ c->setShift(Position(0, 0)); -+ } -+ #endif -+ Slot *lend = end ? end->prev() : seg->last(); -+ Slot *lstart = start->prev(); -+ for (Slot *s = lend; s != lstart; s = s->prev()) -+ { -+ SlotCollision * c = seg->collisionInfo(s); -+ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_KERN | SlotCollision::COLL_ISCOL)) -+ == (SlotCollision::COLL_FIX | SlotCollision::COLL_ISCOL)) // ONLY if this glyph is still colliding -+ { -+ if (!resolveCollisions(seg, s, lend, shiftcoll, true, dir, moved, hasCollisions, dbgout)) -+ return false; -+ c->setFlags(c->flags() | SlotCollision::COLL_TEMPLOCK); -+ } -+ } -+ } -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << json::close << json::close // phase 2a -+ << json::object << "phase" << "2b" << "loop" << i << "moves" << json::array; -+#endif -+ -+ // phase 2b : redo basic diacritic positioning pass for ALL glyphs. Each successive loop adjusts -+ // glyphs from their current adjusted position, which has the effect of gradually minimizing the -+ // resulting adjustment; ie, the final result will be gradually closer to the original location. -+ // Also it allows more flexibility in the final adjustment, since it is moving along the -+ // possible 8 vectors from successively different starting locations. -+ if (moved) -+ { -+ moved = false; -+ for (Slot *s = start; s != end; s = s->next()) -+ { -+ SlotCollision * c = seg->collisionInfo(s); -+ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_TEMPLOCK -+ | SlotCollision::COLL_KERN)) == SlotCollision::COLL_FIX -+ && !resolveCollisions(seg, s, start, shiftcoll, false, dir, moved, hasCollisions, dbgout)) -+ return false; -+ else if (c->flags() & SlotCollision::COLL_TEMPLOCK) -+ c->setFlags(c->flags() & ~SlotCollision::COLL_TEMPLOCK); -+ } -+ } -+ // if (!hasCollisions) // no, don't leave yet because phase 2b will continue to improve things -+ // break; -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << json::close << json::close; // phase 2 -+#endif -+ } -+ } -+ if (!end) -+ break; -+ start = NULL; -+ for (Slot *s = end->prev(); s; s = s->next()) -+ { -+ if (seg->collisionInfo(s)->flags() & SlotCollision::COLL_START) -+ { -+ start = s; -+ break; -+ } -+ } -+ } -+ return true; -+} -+ -+bool Pass::collisionKern(Segment *seg, int dir, json * const dbgout) const -+{ -+ KernCollider kerncoll(dbgout); -+ Slot *start = seg->first(); -+ float ymin = 1e38f; -+ float ymax = -1e38f; -+ const GlyphCache &gc = seg->getFace()->glyphs(); -+ -+ // phase 3 : handle kerning of clusters -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << json::object << "phase" << "3" << "moves" << json::array; -+#endif -+ -+ for (Slot *s = seg->first(); s; s = s->next()) -+ { -+ if (!gc.check(s->gid())) -+ return false; -+ const SlotCollision * c = seg->collisionInfo(s); -+ const Rect &bbox = seg->theGlyphBBoxTemporary(s->gid()); -+ float y = s->origin().y + c->shift().y; -+ ymax = max(y + bbox.tr.y, ymax); -+ ymin = min(y + bbox.bl.y, ymin); -+ if (start && (c->flags() & (SlotCollision::COLL_KERN | SlotCollision::COLL_FIX)) -+ == (SlotCollision::COLL_KERN | SlotCollision::COLL_FIX)) -+ resolveKern(seg, s, start, kerncoll, dir, ymin, ymax, dbgout); -+ if (c->flags() & SlotCollision::COLL_END) -+ start = NULL; -+ if (c->flags() & SlotCollision::COLL_START) -+ start = s; -+ } -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << json::close << json::close; // phase 3 -+#endif -+ return true; -+} -+ -+bool Pass::collisionFinish(Segment *seg, GR_MAYBE_UNUSED json * const dbgout) const -+{ -+ for (Slot *s = seg->first(); s; s = s->next()) -+ { -+ SlotCollision *c = seg->collisionInfo(s); -+ if (c->shift().x != 0 || c->shift().y != 0) -+ { -+ const Position newOffset = c->shift(); -+ const Position nullPosition(0, 0); -+ c->setOffset(newOffset + c->offset()); -+ c->setShift(nullPosition); -+ } -+ } -+// seg->positionSlots(); -+ -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ *dbgout << json::close; -+#endif -+ return true; -+} -+ -+// Can slot s be kerned, or is it attached to something that can be kerned? -+static bool inKernCluster(Segment *seg, Slot *s) -+{ -+ SlotCollision *c = seg->collisionInfo(s); -+ if (c->flags() & SlotCollision::COLL_KERN /** && c->flags() & SlotCollision::COLL_FIX **/ ) -+ return true; -+ while (s->attachedTo()) -+ { -+ s = s->attachedTo(); -+ c = seg->collisionInfo(s); -+ if (c->flags() & SlotCollision::COLL_KERN /** && c->flags() & SlotCollision::COLL_FIX **/ ) -+ return true; -+ } -+ return false; -+} -+ -+// Fix collisions for the given slot. -+// Return true if everything was fixed, false if there are still collisions remaining. -+// isRev means be we are processing backwards. -+bool Pass::resolveCollisions(Segment *seg, Slot *slotFix, Slot *start, -+ ShiftCollider &coll, GR_MAYBE_UNUSED bool isRev, int dir, bool &moved, bool &hasCol, -+ json * const dbgout) const -+{ -+ Slot * nbor; // neighboring slot -+ SlotCollision *cFix = seg->collisionInfo(slotFix); -+ if (!coll.initSlot(seg, slotFix, cFix->limit(), cFix->margin(), cFix->marginWt(), -+ cFix->shift(), cFix->offset(), dir, dbgout)) -+ return false; -+ bool collides = false; -+ // When we're processing forward, ignore kernable glyphs that preceed the target glyph. -+ // When processing backward, don't ignore these until we pass slotFix. -+ bool ignoreForKern = !isRev; -+ bool rtl = dir & 1; -+ Slot *base = slotFix; -+ while (base->attachedTo()) -+ base = base->attachedTo(); -+ Position zero(0., 0.); -+ -+ // Look for collisions with the neighboring glyphs. -+ for (nbor = start; nbor; nbor = isRev ? nbor->prev() : nbor->next()) -+ { -+ SlotCollision *cNbor = seg->collisionInfo(nbor); -+ bool sameCluster = nbor->isChildOf(base); -+ if (nbor != slotFix // don't process if this is the slot of interest -+ && !(cNbor->flags() & SlotCollision::COLL_IGNORE) // don't process if ignoring -+ && (nbor == base || sameCluster // process if in the same cluster as slotFix -+ || !inKernCluster(seg, nbor) // or this cluster is not to be kerned -+ || (rtl ^ ignoreForKern)) // or it comes before(ltr) or after(rtl) -+ && (!isRev // if processing forwards then good to merge otherwise only: -+ || !(cNbor->flags() & SlotCollision::COLL_FIX) // merge in immovable stuff -+ || ((cNbor->flags() & SlotCollision::COLL_KERN) && !sameCluster) // ignore other kernable clusters -+ || (cNbor->flags() & SlotCollision::COLL_ISCOL)) // test against other collided glyphs -+ && !coll.mergeSlot(seg, nbor, cNbor->shift(), !ignoreForKern, sameCluster, collides, false, dbgout)) -+ return false; -+ else if (nbor == slotFix) -+ // Switching sides of this glyph - if we were ignoring kernable stuff before, don't anymore. -+ ignoreForKern = !ignoreForKern; -+ -+ if (nbor != start && (cNbor->flags() & (isRev ? SlotCollision::COLL_START : SlotCollision::COLL_END))) -+ break; -+ } -+ bool isCol = false; -+ if (collides || cFix->shift().x != 0.f || cFix->shift().y != 0.f) -+ { -+ Position shift = coll.resolve(seg, isCol, dbgout); -+ // isCol has been set to true if a collision remains. -+ if (std::fabs(shift.x) < 1e38f && std::fabs(shift.y) < 1e38f) -+ { -+ if (sqr(shift.x-cFix->shift().x) + sqr(shift.y-cFix->shift().y) >= m_colThreshold * m_colThreshold) -+ moved = true; -+ cFix->setShift(shift); -+ if (slotFix->firstChild()) -+ { -+ Rect bbox; -+ Position here = slotFix->origin() + shift; -+ float clusterMin = here.x; -+ slotFix->firstChild()->finalise(seg, NULL, here, bbox, 0, clusterMin, rtl, false); -+ } -+ } -+ } -+ else -+ { -+ // This glyph is not colliding with anything. -+#if !defined GRAPHITE2_NTRACING -+ if (dbgout) -+ { -+ *dbgout << json::object -+ << "missed" << objectid(dslot(seg, slotFix)); -+ coll.outputJsonDbg(dbgout, seg, -1); -+ *dbgout << json::close; -+ } -+#endif -+ } -+ -+ // Set the is-collision flag bit. -+ if (isCol) -+ { cFix->setFlags(cFix->flags() | SlotCollision::COLL_ISCOL | SlotCollision::COLL_KNOWN); } -+ else -+ { cFix->setFlags((cFix->flags() & ~SlotCollision::COLL_ISCOL) | SlotCollision::COLL_KNOWN); } -+ hasCol |= isCol; -+ return true; -+} -+ -+float Pass::resolveKern(Segment *seg, Slot *slotFix, GR_MAYBE_UNUSED Slot *start, KernCollider &coll, int dir, -+ float &ymin, float &ymax, json *const dbgout) const -+{ -+ Slot *nbor; // neighboring slot -+ float currSpace = 0.; -+ bool collides = false; -+ unsigned int space_count = 0; -+ Slot *base = slotFix; -+ while (base->attachedTo()) -+ base = base->attachedTo(); -+ SlotCollision *cFix = seg->collisionInfo(base); -+ const GlyphCache &gc = seg->getFace()->glyphs(); -+ -+ if (base != slotFix) -+ { -+ cFix->setFlags(cFix->flags() | SlotCollision::COLL_KERN | SlotCollision::COLL_FIX); -+ return 0; -+ } -+ bool seenEnd = (cFix->flags() & SlotCollision::COLL_END) != 0; -+ bool isInit = false; -+ -+ for (nbor = slotFix->next(); nbor; nbor = nbor->next()) -+ { -+ if (nbor->isChildOf(base)) -+ continue; -+ if (!gc.check(nbor->gid())) -+ return 0.; -+ const Rect &bb = seg->theGlyphBBoxTemporary(nbor->gid()); -+ SlotCollision *cNbor = seg->collisionInfo(nbor); -+ if (bb.bl.y == 0.f && bb.tr.y == 0.f) -+ { -+ if (m_kernColls == InWord) -+ break; -+ // Add space for a space glyph. -+ currSpace += nbor->advance(); -+ ++space_count; -+ } -+ else -+ { -+ space_count = 0; -+ float y = nbor->origin().y + cNbor->shift().y; -+ ymax = max(y + bb.tr.y, ymax); -+ ymin = min(y + bb.bl.y, ymin); -+ if (nbor != slotFix && !(cNbor->flags() & SlotCollision::COLL_IGNORE)) -+ { -+ seenEnd = true; -+ if (!isInit) -+ { -+ if (!coll.initSlot(seg, slotFix, cFix->limit(), cFix->margin(), -+ cFix->shift(), cFix->offset(), dir, ymin, ymax, dbgout)) -+ return 0.; -+ isInit = true; -+ } -+ collides |= coll.mergeSlot(seg, nbor, cNbor->shift(), currSpace, dir, dbgout); -+ } -+ } -+ if (cNbor->flags() & SlotCollision::COLL_END) -+ { -+ if (seenEnd && space_count < 2) -+ break; -+ else -+ seenEnd = true; -+ } -+ } -+ if (collides) -+ { -+ Position mv = coll.resolve(seg, slotFix, dir, cFix->margin(), dbgout); -+ coll.shift(mv, dir); -+ Position delta = slotFix->advancePos() + mv - cFix->shift(); -+ slotFix->advance(delta); -+ cFix->setShift(mv); -+ return mv.x; -+ } -+ return 0.; -+} -+ -diff --git a/gfx/graphite2/src/Position.cpp b/gfx/graphite2/src/Position.cpp -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/Position.cpp -@@ -0,0 +1,98 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2010, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+#include "inc/Position.h" -+#include <cmath> -+ -+using namespace graphite2; -+ -+bool Rect::hitTest(Rect &other) -+{ -+ if (bl.x > other.tr.x) return false; -+ if (tr.x < other.bl.x) return false; -+ if (bl.y > other.tr.y) return false; -+ if (tr.y < other.bl.y) return false; -+ return true; -+} -+ -+Position Rect::overlap(Position &offset, Rect &other, Position &othero) -+{ -+ float ax = (bl.x + offset.x) - (other.tr.x + othero.x); -+ float ay = (bl.y + offset.y) - (other.tr.y + othero.y); -+ float bx = (other.bl.x + othero.x) - (tr.x + offset.x); -+ float by = (other.bl.y + othero.y) - (tr.y + offset.y); -+ return Position((ax > bx ? ax : bx), (ay > by ? ay : by)); -+} -+ -+float boundmin(float move, float lim1, float lim2, float &error) -+{ -+ // error is always positive for easy comparison -+ if (move < lim1 && move < lim2) -+ { error = 0.; return move; } -+ else if (lim1 < lim2) -+ { error = std::fabs(move - lim1); return lim1; } -+ else -+ { error = std::fabs(move - lim2); return lim2; } -+} -+ -+#if 0 -+Position Rect::constrainedAvoid(Position &offset, Rect &box, Rect &sdbox, Position &other, Rect &obox, Rect &osdbox) -+{ -+ // a = max, i = min, s = sum, d = diff -+ float eax, eay, eix, eiy, eas, eis, ead, eid; -+ float beste = INF; -+ Position res; -+ // calculate the movements in each direction and the error (amount of remaining overlap) -+ // first param is movement, second and third are movement over the constraining box -+ float ax = boundmin(obox.tr.x + other.x - box.bl.x - offset.x + 1, tr.x - offset.x, INF, &eax); -+ float ay = boundmin(obox.tr.y + other.y - box.bl.y - offset.y + 1, tr.y - offset.y, INF, &eay); -+ float ix = boundmin(obox.bl.x + other.x - box.tr.x - offset.x + 1, bl.x - offset.x, INF, &eix); -+ float iy = boundmin(obox.bl.y + other.y - box.tr.y - offset.y + 1, bl.y - offset.y, INF, &eiy); -+ float as = boundmin(ISQRT2 * (osdbox.tr.x + other.x + other.y - sdbox.bl.x - offset.x - offset.y) + 1, tr.x - offset.x, tr.y - offset.y, &eas); -+ float is = boundmin(ISQRT2 * (osdbox.bl.x + other.x + other.y - sdbox.tr.x - offset.x - offset.y) + 1, bl.x - offset.x, bl.y - offset.y, &eis); -+ float ad = boundmin(ISQRT2 * (osdbox.tr.y + other.x - other.y - sdbox.bl.y - offset.x + offset.y) + 1, tr.y - offset.y, tr.x - offset.x, &ead); -+ float id = boundmin(ISQRT2 * (osdbox.bl.y + other.x - other.y - sdbox.tr.y - offset.x + offset.y) + 1, bl.y - offset.y, bl.x - offset.x, &eid); -+ -+ if (eax < beste) -+ { res = Position(ax, 0); beste = eax; } -+ if (eay < beste) -+ { res = Position(0, ay); beste = eay; } -+ if (eix < beste) -+ { res = Position(ix, 0); beste = eix; } -+ if (eiy < beste) -+ { res = Position(0, iy); beste = eiy; } -+ if (SQRT2 * (eas) < beste) -+ { res = Position(as, ad); beste = SQRT2 * (eas); } -+ if (SQRT2 * (eis) < beste) -+ { res = Position(is, is); beste = SQRT2 * (eis); } -+ if (SQRT2 * (ead) < beste) -+ { res = Position(ad, ad); beste = SQRT2 * (ead); } -+ if (SQRT2 * (eid) < beste) -+ { res = Position(id, id); beste = SQRT2 * (eid); } -+ return res; -+} -+#endif -+ -diff --git a/gfx/graphite2/src/SegCache.cpp b/gfx/graphite2/src/SegCache.cpp ---- a/gfx/graphite2/src/SegCache.cpp -+++ b/gfx/graphite2/src/SegCache.cpp -@@ -35,17 +35,17 @@ of the License or (at your option) any l - - - using namespace graphite2; - - #ifndef GRAPHITE2_NSEGCACHE - - SegCache::SegCache(const SegCacheStore * store, const Features & feats) - : m_prefixLength(ePrefixLength), -- m_maxCachedSegLength(eMaxSpliceSize), -+// m_maxCachedSegLength(eMaxSpliceSize), - m_segmentCount(0), - m_features(feats), - m_totalAccessCount(0l), m_totalMisses(0l), - m_purgeFactor(1.0f / (ePurgeFactor * store->maxSegmentCount())) - { - m_prefixes.raw = grzeroalloc<void*>(store->maxCmapGid() + 2); - m_prefixes.range[SEG_CACHE_MIN_INDEX] = SEG_CACHE_UNSET_INDEX; - m_prefixes.range[SEG_CACHE_MAX_INDEX] = SEG_CACHE_UNSET_INDEX; -@@ -79,17 +79,17 @@ SegCache::~SegCache() - { - assert(m_prefixes.raw == NULL); - } - - SegCacheEntry* SegCache::cache(SegCacheStore * store, const uint16* cmapGlyphs, size_t length, Segment * seg, size_t charOffset) - { - uint16 pos = 0; - if (!length) return NULL; -- assert(length < m_maxCachedSegLength); -+// assert(length < m_maxCachedSegLength); - SegCachePrefixArray pArray = m_prefixes; - while (pos + 1 < m_prefixLength) - { - uint16 gid = (pos < length)? cmapGlyphs[pos] : 0; - if (!pArray.array[gid].raw) - { - pArray.array[gid].raw = grzeroalloc<void*>(store->maxCmapGid() + 2); - if (!pArray.array[gid].raw) -diff --git a/gfx/graphite2/src/Segment.cpp b/gfx/graphite2/src/Segment.cpp ---- a/gfx/graphite2/src/Segment.cpp -+++ b/gfx/graphite2/src/Segment.cpp -@@ -31,48 +31,53 @@ of the License or (at your option) any l - #include "inc/bits.h" - #include "inc/Segment.h" - #include "graphite2/Font.h" - #include "inc/CharInfo.h" - #include "inc/debug.h" - #include "inc/Slot.h" - #include "inc/Main.h" - #include "inc/CmapCache.h" --#include "inc/Bidi.h" -+#include "inc/Collider.h" - #include "graphite2/Segment.h" - - - using namespace graphite2; - - Segment::Segment(unsigned int numchars, const Face* face, uint32 script, int textDir) - : m_freeSlots(NULL), - m_freeJustifies(NULL), - m_charinfo(new CharInfo[numchars]), -+ m_collisions(NULL), - m_face(face), - m_silf(face->chooseSilf(script)), - m_first(NULL), - m_last(NULL), - m_bufSize(numchars + 10), - m_numGlyphs(numchars), - m_numCharinfo(numchars), - m_passBits(m_silf->aPassBits() ? -1 : 0), - m_defaultOriginal(0), -- m_dir(textDir) -+ m_dir(textDir), -+ m_flags(((m_silf->flags() & 0x20) != 0) << 1) - { - freeSlot(newSlot()); - m_bufSize = log_binary(numchars)+1; - } - - Segment::~Segment() - { - for (SlotRope::iterator i = m_slots.begin(); i != m_slots.end(); ++i) - free(*i); -- for (AttributeRope::iterator j = m_userAttrs.begin(); j != m_userAttrs.end(); ++j) -- free(*j); -+ for (AttributeRope::iterator i = m_userAttrs.begin(); i != m_userAttrs.end(); ++i) -+ free(*i); -+ for (JustifyRope::iterator i = m_justifies.begin(); i != m_justifies.end(); ++i) -+ free(*i); - delete[] m_charinfo; -+ free(m_collisions); - } - - #ifndef GRAPHITE2_NSEGCACHE - SegmentScopeState Segment::setScope(Slot * firstSlot, Slot * lastSlot, size_t subLength) - { - SegmentScopeState state; - state.numGlyphsOutsideScope = m_numGlyphs - subLength; - state.realFirstSlot = m_first; -@@ -159,28 +164,35 @@ void Segment::appendSlot(int id, int cid - m_passBits &= theGlyph->attrs()[m_silf->aPassBits()] - | (m_silf->numPasses() > 16 ? (theGlyph->attrs()[m_silf->aPassBits() + 1] << 16) : 0); - } - - Slot *Segment::newSlot() - { - if (!m_freeSlots) - { -+ // check that the segment doesn't grow indefinintely -+ if (m_numGlyphs > m_numCharinfo * MAX_SEG_GROWTH_FACTOR) -+ return NULL; - int numUser = m_silf->numUser(); - #if !defined GRAPHITE2_NTRACING - if (m_face->logger()) ++numUser; - #endif - Slot *newSlots = grzeroalloc<Slot>(m_bufSize); -- int16 *newAttrs = grzeroalloc<int16>(numUser * m_bufSize); -- if (!newSlots || !newAttrs) return NULL; -+ int16 *newAttrs = grzeroalloc<int16>(m_bufSize * numUser); -+ if (!newSlots || !newAttrs) -+ { -+ free(newSlots); -+ free(newAttrs); -+ return NULL; -+ } - for (size_t i = 0; i < m_bufSize; i++) - { -+ ::new (newSlots + i) Slot(newAttrs + i * numUser); - newSlots[i].next(newSlots + i + 1); -- newSlots[i].userAttrs(newAttrs + i * numUser); -- newSlots[i].setBidiClass(-1); - } - newSlots[m_bufSize - 1].next(NULL); - newSlots[0].next(NULL); - m_slots.push_back(newSlots); - m_userAttrs.push_back(newAttrs); - m_freeSlots = (m_bufSize > 1)? newSlots + 1 : NULL; - return newSlots; - } -@@ -197,17 +209,17 @@ void Segment::freeSlot(Slot *aSlot) - if (aSlot->attachedTo()) - aSlot->attachedTo()->removeChild(aSlot); - while (aSlot->firstChild()) - { - aSlot->firstChild()->attachTo(NULL); - aSlot->removeChild(aSlot->firstChild()); - } - // reset the slot incase it is reused -- ::new (aSlot) Slot; -+ ::new (aSlot) Slot(aSlot->userAttrs()); - memset(aSlot->userAttrs(), 0, m_silf->numUser() * sizeof(int16)); - // Update generation counter for debug - #if !defined GRAPHITE2_NTRACING - if (m_face->logger()) - ++aSlot->userAttrs()[m_silf->numUser()]; - #endif - // update next pointer - if (!m_freeSlots) -@@ -301,16 +313,71 @@ void Segment::splice(size_t offset, size - slot->set(*srcSlot, offset, m_silf->numUser(), m_silf->numJustLevels(), numChars); - if (srcSlot->attachedTo()) slot->attachTo(indexmap[srcSlot->attachedTo()->index()]); - if (srcSlot->nextSibling()) slot->m_sibling = indexmap[srcSlot->nextSibling()->index()]; - if (srcSlot->firstChild()) slot->m_child = indexmap[srcSlot->firstChild()->index()]; - } - } - #endif // GRAPHITE2_NSEGCACHE - -+// reverse the slots but keep diacritics in their same position after their bases -+void Segment::reverseSlots() -+{ -+ m_dir = m_dir ^ 64; // invert the reverse flag -+ if (m_first == m_last) return; // skip 0 or 1 glyph runs -+ -+ Slot *t = 0; -+ Slot *curr = m_first; -+ Slot *tlast; -+ Slot *tfirst; -+ Slot *out = 0; -+ -+ while (curr && getSlotBidiClass(curr) == 16) -+ curr = curr->next(); -+ if (!curr) return; -+ tfirst = curr->prev(); -+ tlast = curr; -+ -+ while (curr) -+ { -+ if (getSlotBidiClass(curr) == 16) -+ { -+ Slot *d = curr->next(); -+ while (d && getSlotBidiClass(d) == 16) -+ d = d->next(); -+ -+ d = d ? d->prev() : m_last; -+ Slot *p = out->next(); // one after the diacritics. out can't be null -+ if (p) -+ p->prev(d); -+ else -+ tlast = d; -+ t = d->next(); -+ d->next(p); -+ curr->prev(out); -+ out->next(curr); -+ } -+ else // will always fire first time round the loop -+ { -+ if (out) -+ out->prev(curr); -+ t = curr->next(); -+ curr->next(out); -+ out = curr; -+ } -+ curr = t; -+ } -+ out->prev(tfirst); -+ if (tfirst) -+ tfirst->next(out); -+ else -+ m_first = out; -+ m_last = tlast; -+} -+ - void Segment::linkClusters(Slot *s, Slot * end) - { - end = end->next(); - - for (; s != end && !s->isBase(); s = s->next()); - Slot * ls = s; - - if (m_dir & 1) -@@ -330,39 +397,47 @@ void Segment::linkClusters(Slot *s, Slot - if (!s->isBase()) continue; - - ls->sibling(s); - ls = s; - } - } - } - --Position Segment::positionSlots(const Font *font, Slot * iStart, Slot * iEnd) -+Position Segment::positionSlots(const Font *font, Slot * iStart, Slot * iEnd, bool isRtl, bool isFinal) - { - Position currpos(0., 0.); - float clusterMin = 0.; - Rect bbox; - -+ if (currdir() != isRtl) -+ { -+ Slot *temp; -+ reverseSlots(); -+ temp = iStart; -+ iStart = iEnd; -+ iEnd = temp; -+ } - if (!iStart) iStart = m_first; - if (!iEnd) iEnd = m_last; - -- if (m_dir & 1) -+ if (isRtl) - { - for (Slot * s = iEnd, * const end = iStart->prev(); s && s != end; s = s->prev()) - { - if (s->isBase()) -- currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x); -+ currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x, isRtl, isFinal); - } - } - else - { - for (Slot * s = iStart, * const end = iEnd->next(); s && s != end; s = s->next()) - { - if (s->isBase()) -- currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x); -+ currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x, isRtl, isFinal); - } - } - return currpos; - } - - - void Segment::associateChars(int offset, int numChars) - { -@@ -429,66 +504,28 @@ bool Segment::read_text(const Face *face - { - case gr_utf8: process_utf_data(*this, *face, addFeatures(*pFeats), utf8::const_iterator(pStart), nChars); break; - case gr_utf16: process_utf_data(*this, *face, addFeatures(*pFeats), utf16::const_iterator(pStart), nChars); break; - case gr_utf32: process_utf_data(*this, *face, addFeatures(*pFeats), utf32::const_iterator(pStart), nChars); break; - } - return true; - } - --void Segment::prepare_pos(const Font * /*font*/) -+void Segment::doMirror(uint16 aMirror) - { -- // copy key changeable metrics into slot (if any); --} -- --Slot *process_bidi(Slot *start, int level, int prelevel, int &nextLevel, int dirover, int isol, int &cisol, int &isolerr, int &embederr, int init, Segment *seg, uint8 aMirror, BracketPairStack &stack); --void resolveImplicit(Slot *s, Segment *seg, uint8 aMirror); --void resolveWhitespace(int baseLevel, Slot *s); --Slot *resolveOrder(Slot * & s, const bool reordered, const int level = 0); -- --void Segment::bidiPass(uint8 aBidi, int paradir, uint8 aMirror) --{ -- if (slotCount() == 0) -- return; -- -- Slot *s; -- int baseLevel = paradir ? 1 : 0; -- unsigned int bmask = 0; -- unsigned int ssize = 0; -- for (s = first(); s; s = s->next()) -+ Slot * s; -+ for (s = m_first; s; s = s->next()) - { -- if (s->getBidiClass() == -1) -- { -- unsigned int bAttr = glyphAttr(s->gid(), aBidi); -- s->setBidiClass((bAttr <= 22) * bAttr); -- } -- bmask |= (1 << s->getBidiClass()); -- s->setBidiLevel(baseLevel); -- if (glyphAttr(s->gid(), aMirror) && s->getBidiClass() == 21) -- ++ssize; -- } -- -- BracketPairStack bstack(ssize); -- if (bmask & (paradir ? 0x2E7892 : 0x2E789C)) -- { -- // O(8N) algorithm, with no working data beyond what is needed for processParens -- int nextLevel = paradir; -- int e, i, c; -- process_bidi(first(), baseLevel, paradir, nextLevel, 0, 0, c = 0, i = 0, e = 0, 1, this, aMirror, bstack); -- resolveImplicit(first(), this, aMirror); -- resolveWhitespace(baseLevel, last()); -- s = resolveOrder(s = first(), baseLevel != 0); -- if (s) -- { -- first(s); last(s->prev()); -- s->prev()->next(0); s->prev(0); -- } -- } -- else if (!(dir() & 4) && baseLevel && aMirror) -- { -- for (s = first(); s; s = s->next()) -- { -- unsigned short g = glyphAttr(s->gid(), aMirror); -- if (g) s->setGlyph(this, g); -- } -+ unsigned short g = glyphAttr(s->gid(), aMirror); -+ if (g && (!(dir() & 4) || !glyphAttr(s->gid(), aMirror + 1))) -+ s->setGlyph(this, g); - } - } - -+bool Segment::initCollisions() -+{ -+ m_collisions = grzeroalloc<SlotCollision>(slotCount()); -+ if (!m_collisions) return false; -+ -+ for (Slot *p = m_first; p; p = p->next()) -+ ::new (collisionInfo(p)) SlotCollision(this, p); -+ return true; -+} -diff --git a/gfx/graphite2/src/Silf.cpp b/gfx/graphite2/src/Silf.cpp ---- a/gfx/graphite2/src/Silf.cpp -+++ b/gfx/graphite2/src/Silf.cpp -@@ -46,23 +46,25 @@ Silf::Silf() throw() - m_justs(0), - m_numPasses(0), - m_numJusts(0), - m_sPass(0), - m_pPass(0), - m_jPass(0), - m_bPass(0), - m_flags(0), -+ m_dir(0), - m_aPseudo(0), - m_aBreak(0), - m_aUser(0), - m_aBidi(0), - m_aMirror(0), - m_aPassBits(0), - m_iMaxComp(0), -+ m_aCollision(0), - m_aLig(0), - m_numPseudo(0), - m_nClass(0), - m_nLinear(0), - m_gEndLine(0) - { - memset(&m_silfinfo, 0, sizeof m_silfinfo); - } -@@ -88,16 +90,20 @@ void Silf::releaseBuffers() throw() - - - bool Silf::readGraphite(const byte * const silf_start, size_t lSilf, Face& face, uint32 version) - { - const byte * p = silf_start, - * const silf_end = p + lSilf; - Error e; - -+ if (e.test(version >= 0x00060000, E_BADSILFVERSION)) -+ { -+ releaseBuffers(); return face.error(e); -+ } - if (version >= 0x00030000) - { - if (e.test(lSilf < 28, E_BADSIZE)) { releaseBuffers(); return face.error(e); } - be::skip<int32>(p); // ruleVersion - be::skip<uint16>(p,2); // passOffset & pseudosOffset - } - else if (e.test(lSilf < 20, E_BADSIZE)) { releaseBuffers(); return face.error(e); } - const uint16 maxGlyph = be::read<uint16>(p); -@@ -132,73 +138,88 @@ bool Silf::readGraphite(const byte * con - for (uint8 i = 0; i < m_numJusts; i++) - { - ::new(m_justs + i) Justinfo(p[0], p[1], p[2], p[3]); - be::skip<byte>(p,8); - } - } - - if (e.test(p + sizeof(uint16) + sizeof(uint8)*8 >= silf_end, E_BADENDJUSTS)) { releaseBuffers(); return face.error(e); } -- m_aLig = be::read<uint16>(p); -- m_aUser = be::read<uint8>(p); -- m_iMaxComp = be::read<uint8>(p); -- be::skip<byte>(p,5); // direction and 4 reserved bytes -+ m_aLig = be::read<uint16>(p); -+ m_aUser = be::read<uint8>(p); -+ m_iMaxComp = be::read<uint8>(p); -+ m_dir = be::read<uint8>(p) - 1; -+ m_aCollision = be::read<uint8>(p); -+ be::skip<byte>(p,3); - be::skip<uint16>(p, be::read<uint8>(p)); // don't need critical features yet - be::skip<byte>(p); // reserved - if (e.test(p >= silf_end, E_BADCRITFEATURES)) { releaseBuffers(); return face.error(e); } - be::skip<uint32>(p, be::read<uint8>(p)); // don't use scriptTag array. - if (e.test(p + sizeof(uint16) + sizeof(uint32) >= silf_end, E_BADSCRIPTTAGS)) { releaseBuffers(); return face.error(e); } - m_gEndLine = be::read<uint16>(p); // lbGID - const byte * o_passes = p, - * const passes_start = silf_start + be::read<uint32>(p); - - const size_t num_attrs = face.glyphs().numAttrs(); - if (e.test(m_aPseudo >= num_attrs, E_BADAPSEUDO) - || e.test(m_aBreak >= num_attrs, E_BADABREAK) - || e.test(m_aBidi >= num_attrs, E_BADABIDI) - || e.test(m_aMirror>= num_attrs, E_BADAMIRROR) -+ || e.test(m_aCollision && m_aCollision >= num_attrs - 5, E_BADACOLLISION) - || e.test(m_numPasses > 128, E_BADNUMPASSES) || e.test(passes_start >= silf_end, E_BADPASSESSTART) - || e.test(m_pPass < m_sPass, E_BADPASSBOUND) || e.test(m_pPass > m_numPasses, E_BADPPASS) || e.test(m_sPass > m_numPasses, E_BADSPASS) - || e.test(m_jPass < m_pPass, E_BADJPASSBOUND) || e.test(m_jPass > m_numPasses, E_BADJPASS) - || e.test((m_bPass != 0xFF && (m_bPass < m_jPass || m_bPass > m_numPasses)), E_BADBPASS) - || e.test(m_aLig > 127, E_BADALIG)) - { - releaseBuffers(); - return face.error(e); - } - be::skip<uint32>(p, m_numPasses); - if (e.test(p + sizeof(uint16) >= passes_start, E_BADPASSESSTART)) { releaseBuffers(); return face.error(e); } - m_numPseudo = be::read<uint16>(p); - be::skip<uint16>(p, 3); // searchPseudo, pseudoSelector, pseudoShift -- if (e.test(p + m_numPseudo*(sizeof(uint32) + sizeof(uint16)) >= passes_start, E_BADNUMPSEUDO)) -+ m_pseudos = new Pseudo[m_numPseudo]; -+ if (e.test(p + m_numPseudo*(sizeof(uint32) + sizeof(uint16)) >= passes_start, E_BADNUMPSEUDO) -+ || e.test(!m_pseudos, E_OUTOFMEM)) - { - releaseBuffers(); return face.error(e); - } -- m_pseudos = new Pseudo[m_numPseudo]; - for (int i = 0; i < m_numPseudo; i++) - { - m_pseudos[i].uid = be::read<uint32>(p); - m_pseudos[i].gid = be::read<uint16>(p); - } - - const size_t clen = readClassMap(p, passes_start - p, version, e); -- if (e || e.test(p + clen > passes_start, E_BADPASSESSTART)) { releaseBuffers(); return face.error(e); } -+ m_passes = new Pass[m_numPasses]; -+ if (e || e.test(p + clen > passes_start, E_BADPASSESSTART) -+ || e.test(!m_passes, E_OUTOFMEM)) -+ { releaseBuffers(); return face.error(e); } - -- m_passes = new Pass[m_numPasses]; - for (size_t i = 0; i < m_numPasses; ++i) - { - const byte * const pass_start = silf_start + be::read<uint32>(o_passes), - * const pass_end = silf_start + be::peek<uint32>(o_passes); - face.error_context((face.error_context() & 0xFF00) + EC_ASILF + (i << 16)); -- if (e.test(pass_start > pass_end, E_BADPASSSTART) || e.test(pass_end > silf_end, E_BADPASSEND)) { -+ if (e.test(pass_start > pass_end, E_BADPASSSTART) -+ || e.test(pass_start < passes_start, E_BADPASSSTART) -+ || e.test(pass_end > silf_end, E_BADPASSEND)) { - releaseBuffers(); return face.error(e); - } - -+ enum passtype pt = PASS_TYPE_UNKNOWN; -+ if (i >= m_jPass) pt = PASS_TYPE_JUSTIFICATION; -+ else if (i >= m_pPass) pt = PASS_TYPE_POSITIONING; -+ else if (i >= m_sPass) pt = PASS_TYPE_SUBSTITUTE; -+ else pt = PASS_TYPE_LINEBREAK; -+ - m_passes[i].init(this); -- if (!m_passes[i].readPass(pass_start, pass_end - pass_start, pass_start - silf_start, face, e)) -+ if (!m_passes[i].readPass(pass_start, pass_end - pass_start, pass_start - silf_start, face, pt, -+ version, e)) - { - releaseBuffers(); - return false; - } - } - - // fill in gr_faceinfo - m_silfinfo.upem = face.glyphs().unitsPerEm(); -@@ -246,35 +267,38 @@ size_t Silf::readClassMap(const byte *p, - uint32 max_off; - if (version >= 0x00040000) - max_off = readClassOffsets<uint32>(p, data_len, e); - else - max_off = readClassOffsets<uint16>(p, data_len, e); - - if (max_off == ERROROFFSET) return ERROROFFSET; - -+ if (e.test((int)max_off < m_nLinear + (m_nClass - m_nLinear) * 6, E_CLASSESTOOBIG)) -+ return ERROROFFSET; -+ - // Check the linear offsets are sane, these must be monotonically increasing. - for (const uint32 *o = m_classOffsets, * const o_end = o + m_nLinear; o != o_end; ++o) - if (e.test(o[0] > o[1], E_BADCLASSOFFSET)) - return ERROROFFSET; - - // Fortunately the class data is all uint16s so we can decode these now - m_classData = gralloc<uint16>(max_off); - if (e.test(!m_classData, E_OUTOFMEM)) return ERROROFFSET; - for (uint16 *d = m_classData, * const d_end = d + max_off; d != d_end; ++d) - *d = be::read<uint16>(p); - - // Check the lookup class invariants for each non-linear class - for (const uint32 *o = m_classOffsets + m_nLinear, * const o_end = m_classOffsets + m_nClass; o != o_end; ++o) - { - const uint16 * lookup = m_classData + *o; -- if (e.test(*o > max_off - 4, E_HIGHCLASSOFFSET) // LookupClass doesn't stretch over max_off -+ if (e.test(*o + 4 > max_off, E_HIGHCLASSOFFSET) // LookupClass doesn't stretch over max_off - || e.test(lookup[0] == 0 // A LookupClass with no looks is a suspicious thing ... -- || lookup[0] > (max_off - *o - 4)/2 // numIDs lookup pairs fits within (start of LookupClass' lookups array, max_off] -- || lookup[3] != lookup[0] - lookup[1], E_BADCLASSLOOKUPINFO)) // rangeShift: numIDs - searchRange -+ || lookup[0] * 2 + *o + 4 > max_off // numIDs lookup pairs fits within (start of LookupClass' lookups array, max_off] -+ || lookup[3] + lookup[1] != lookup[0], E_BADCLASSLOOKUPINFO)) // rangeShift: numIDs - searchRange - return ERROROFFSET; - } - - return max_off; - } - - uint16 Silf::findPseudo(uint32 uid) const - { -@@ -285,17 +309,17 @@ uint16 Silf::findPseudo(uint32 uid) cons - - uint16 Silf::findClassIndex(uint16 cid, uint16 gid) const - { - if (cid > m_nClass) return -1; - - const uint16 * cls = m_classData + m_classOffsets[cid]; - if (cid < m_nLinear) // output class being used for input, shouldn't happen - { -- for (unsigned int i = 0, n = m_classOffsets[cid + 1]; i < n; ++i, ++cls) -+ for (unsigned int i = 0, n = m_classOffsets[cid + 1] - m_classOffsets[cid]; i < n; ++i, ++cls) - if (*cls == gid) return i; - return -1; - } - else - { - const uint16 * min = cls + 4, // lookups array - * max = min + cls[0]*2; // lookups aray is numIDs (cls[0]) uint16 pairs long - do -@@ -326,90 +350,82 @@ uint16 Silf::getClassGlyph(uint16 cid, u - } - return 0; - } - - - bool Silf::runGraphite(Segment *seg, uint8 firstPass, uint8 lastPass, int dobidi) const - { - assert(seg != 0); -- SlotMap map(*seg); -+ SlotMap map(*seg, m_dir); - FiniteStateMachine fsm(map, seg->getFace()->logger()); - vm::Machine m(map); - unsigned int initSize = seg->slotCount(); - uint8 lbidi = m_bPass; - #if !defined GRAPHITE2_NTRACING - json * const dbgout = seg->getFace()->logger(); - #endif - - if (lastPass == 0) - { - if (firstPass == lastPass && lbidi == 0xFF) - return true; - lastPass = m_numPasses; - } -- if (firstPass <= lbidi && lastPass >= lbidi && dobidi) -+ if ((firstPass < lbidi || (dobidi && firstPass == lbidi)) && (lastPass >= lbidi || (dobidi && lastPass + 1 == lbidi))) - lastPass++; - else - lbidi = 0xFF; - - for (size_t i = firstPass; i < lastPass; ++i) - { - // bidi and mirroring - if (i == lbidi) - { - #if !defined GRAPHITE2_NTRACING - if (dbgout) - { - *dbgout << json::item << json::object - << "id" << -1 - << "slots" << json::array; -- seg->positionSlots(0); -+ seg->positionSlots(0, 0, 0, m_dir); - for(Slot * s = seg->first(); s; s = s->next()) - *dbgout << dslot(seg, s); - *dbgout << json::close - << "rules" << json::array << json::close - << json::close; - } - #endif -- -- if (!(seg->dir() & 2)) -- seg->bidiPass(m_aBidi, seg->dir() & 1, m_aMirror); -- else if (m_aMirror) -- { -- Slot * s; -- for (s = seg->first(); s; s = s->next()) -- { -- unsigned short g = seg->glyphAttr(s->gid(), m_aMirror); -- if (g && (!(seg->dir() & 4) || !seg->glyphAttr(s->gid(), m_aMirror + 1))) -- s->setGlyph(seg, g); -- } -- } -+ if (seg->currdir() != (m_dir & 1)) -+ seg->reverseSlots(); -+ if (m_aMirror && (seg->dir() & 3) == 3) -+ seg->doMirror(m_aMirror); - --i; -+ lbidi = lastPass; - --lastPass; -- lbidi = 0xFF; - continue; - } - - #if !defined GRAPHITE2_NTRACING - if (dbgout) - { - *dbgout << json::item << json::object - << "id" << i+1 - << "slots" << json::array; -- seg->positionSlots(0); -+ seg->positionSlots(0, 0, 0, m_dir); - for(Slot * s = seg->first(); s; s = s->next()) - *dbgout << dslot(seg, s); - *dbgout << json::close; - } - #endif - - // test whether to reorder, prepare for positioning -- if (i >= 32 || (seg->passBits() & (1 << i)) == 0) -- m_passes[i].runGraphite(m, fsm); -+ bool reverse = (lbidi == 0xFF) && (seg->currdir() != ((m_dir & 1) ^ m_passes[i].reverseDir())); -+ if ((i >= 32 || (seg->passBits() & (1 << i)) == 0 || m_passes[i].collisionLoops()) -+ && !m_passes[i].runGraphite(m, fsm, reverse)) -+ return false; - // only subsitution passes can change segment length, cached subsegments are short for their text - if (m.status() != vm::Machine::finished -- || (i < m_pPass && (seg->slotCount() > initSize * MAX_SEG_GROWTH_FACTOR -- || (seg->slotCount() && seg->slotCount() * MAX_SEG_GROWTH_FACTOR < initSize)))) -+ || (seg->slotCount() && seg->slotCount() * MAX_SEG_GROWTH_FACTOR < initSize)) - return false; - } - return true; - } -diff --git a/gfx/graphite2/src/Slot.cpp b/gfx/graphite2/src/Slot.cpp ---- a/gfx/graphite2/src/Slot.cpp -+++ b/gfx/graphite2/src/Slot.cpp -@@ -24,34 +24,34 @@ Mozilla Public License (http://mozilla.o - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ - #include "inc/Segment.h" - #include "inc/Slot.h" - #include "inc/Silf.h" - #include "inc/CharInfo.h" - #include "inc/Rule.h" -+#include "inc/Collider.h" - - - using namespace graphite2; - --Slot::Slot() : -+Slot::Slot(int16 *user_attrs) : - m_next(NULL), m_prev(NULL), - m_glyphid(0), m_realglyphid(0), m_original(0), m_before(0), m_after(0), - m_index(0), m_parent(NULL), m_child(NULL), m_sibling(NULL), - m_position(0, 0), m_shift(0, 0), m_advance(0, 0), - m_attach(0, 0), m_with(0, 0), m_just(0.), -- m_flags(0), m_attLevel(0), m_bidiCls(-1), m_bidiLevel(0), m_justs(NULL) -- // Do not set m_userAttr since it is set *before* new is called since this -- // is used as a positional new to reset the GrSlot -+ m_flags(0), m_attLevel(0), m_bidiCls(-1), m_bidiLevel(0), -+ m_userAttr(user_attrs), m_justs(NULL) - { - } - - // take care, this does not copy any of the GrSlot pointer fields --void Slot::set(const Slot & orig, int charOffset, size_t numUserAttr, size_t justLevels, size_t numChars) -+void Slot::set(const Slot & orig, int charOffset, size_t sizeAttr, size_t justLevels, size_t numChars) - { - // leave m_next and m_prev unchanged - m_glyphid = orig.m_glyphid; - m_realglyphid = orig.m_realglyphid; - m_original = orig.m_original + charOffset; - if (charOffset + int(orig.m_before) < 0) - m_before = 0; - else -@@ -68,95 +68,104 @@ void Slot::set(const Slot & orig, int ch - m_advance = orig.m_advance; - m_attach = orig.m_attach; - m_with = orig.m_with; - m_flags = orig.m_flags; - m_attLevel = orig.m_attLevel; - m_bidiCls = orig.m_bidiCls; - m_bidiLevel = orig.m_bidiLevel; - if (m_userAttr && orig.m_userAttr) -- memcpy(m_userAttr, orig.m_userAttr, numUserAttr * sizeof(*m_userAttr)); -+ memcpy(m_userAttr, orig.m_userAttr, sizeAttr * sizeof(*m_userAttr)); - if (m_justs && orig.m_justs) - memcpy(m_justs, orig.m_justs, SlotJustify::size_of(justLevels)); - } - - void Slot::update(int /*numGrSlots*/, int numCharInfo, Position &relpos) - { - m_before += numCharInfo; - m_after += numCharInfo; - m_position = m_position + relpos; - } - --Position Slot::finalise(const Segment *seg, const Font *font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin) -+Position Slot::finalise(const Segment *seg, const Font *font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal) - { -+ SlotCollision *coll = NULL; - if (attrLevel && m_attLevel > attrLevel) return Position(0, 0); -- float scale = 1.0; -- Position shift(m_shift.x * ((seg->dir() & 1) * -2 + 1) + m_just, m_shift.y); -+ float scale = font ? font->scale() : 1.0f; -+ Position shift(m_shift.x * (rtl * -2 + 1) + m_just, m_shift.y); - float tAdvance = m_advance.x + m_just; -+ if (isFinal && (coll = seg->collisionInfo(this))) -+ { -+ const Position &collshift = coll->offset(); -+ if (!(coll->flags() & SlotCollision::COLL_KERN) || rtl) -+ shift = shift + collshift; -+ } - const GlyphFace * glyphFace = seg->getFace()->glyphs().glyphSafe(glyph()); - if (font) - { - scale = font->scale(); - shift *= scale; - if (font->isHinted() && glyphFace) -- tAdvance = (m_advance.x - glyphFace->theAdvance().x + m_just) * scale + font->advance(m_glyphid); -+ tAdvance = (m_advance.x - glyphFace->theAdvance().x + m_just) * scale + font->advance(glyph()); - else - tAdvance *= scale; - } - Position res; - - m_position = base + shift; - if (!m_parent) - { - res = base + Position(tAdvance, m_advance.y * scale); -- clusterMin = base.x; -+ clusterMin = m_position.x; - } - else - { - float tAdv; - m_position += (m_attach - m_with) * scale; -- tAdv = m_advance.x >= 0.5 ? m_position.x + tAdvance - shift.x : 0.f; -+ tAdv = m_advance.x >= 0.5f ? m_position.x + tAdvance - shift.x : 0.f; - res = Position(tAdv, 0); -- if ((m_advance.x >= 0.5 || m_position.x < 0) && m_position.x < clusterMin) clusterMin = m_position.x; -+ if ((m_advance.x >= 0.5f || m_position.x < 0) && m_position.x < clusterMin) clusterMin = m_position.x; - } - - if (glyphFace) - { - Rect ourBbox = glyphFace->theBBox() * scale + m_position; - bbox = bbox.widen(ourBbox); - } - - if (m_child && m_child != this && m_child->attachedTo() == this) - { -- Position tRes = m_child->finalise(seg, font, m_position, bbox, attrLevel, clusterMin); -- if ((!m_parent || m_advance.x >= 0.5) && tRes.x > res.x) res = tRes; -+ Position tRes = m_child->finalise(seg, font, m_position, bbox, attrLevel, clusterMin, rtl, isFinal); -+ if ((!m_parent || m_advance.x >= 0.5f) && tRes.x > res.x) res = tRes; - } - - if (m_parent && m_sibling && m_sibling != this && m_sibling->attachedTo() == m_parent) - { -- Position tRes = m_sibling->finalise(seg, font, base, bbox, attrLevel, clusterMin); -+ Position tRes = m_sibling->finalise(seg, font, base, bbox, attrLevel, clusterMin, rtl, isFinal); - if (tRes.x > res.x) res = tRes; - } - - if (!m_parent && clusterMin < base.x) - { -- Position adj = Position(base.x - clusterMin, 0.); -+ Position adj = Position(m_position.x - clusterMin, 0.); - res += adj; - m_position += adj; - if (m_child) m_child->floodShift(adj); - } - return res; - } - --int32 Slot::clusterMetric(const Segment *seg, uint8 metric, uint8 attrLevel) -+int32 Slot::clusterMetric(const Segment *seg, uint8 metric, uint8 attrLevel, bool rtl) - { - Position base; -+ if (glyph() >= seg->getFace()->glyphs().numGlyphs()) -+ return 0; - Rect bbox = seg->theGlyphBBoxTemporary(glyph()); - float clusterMin = 0.; -- Position res = finalise(seg, NULL, base, bbox, attrLevel, clusterMin); -+ Position res = finalise(seg, NULL, base, bbox, attrLevel, clusterMin, rtl, false); - - switch (metrics(metric)) - { - case kgmetLsb : - return static_cast<uint32>(bbox.bl.x); - case kgmetRsb : - return static_cast<uint32>(res.x - bbox.tr.x); - case kgmetBbTop : -@@ -175,19 +184,20 @@ int32 Slot::clusterMetric(const Segment - return static_cast<uint32>(res.x); - case kgmetAdvHeight : - return static_cast<uint32>(res.y); - default : - return 0; - } - } - -+#define SLOTGETCOLATTR(x) { SlotCollision *c = seg->collisionInfo(this); return c ? int(c-> x) : 0; } -+ - int Slot::getAttr(const Segment *seg, attrCode ind, uint8 subindex) const - { -- if (!this) return 0; - if (ind == gr_slatUserDefnV1) - { - ind = gr_slatUserDefn; - subindex = 0; - } - else if (ind >= gr_slatJStretch && ind < gr_slatJStretch + 20 && ind != gr_slatJWidth) - { - int indx = ind - gr_slatJStretch; -@@ -205,37 +215,66 @@ int Slot::getAttr(const Segment *seg, at - case gr_slatAttYOff : return 0; - case gr_slatAttWithX : return int(m_with.x); - case gr_slatAttWithY : return int(m_with.y); - case gr_slatAttWithXOff: - case gr_slatAttWithYOff:return 0; - case gr_slatAttLevel : return m_attLevel; - case gr_slatBreak : return seg->charinfo(m_original)->breakWeight(); - case gr_slatCompRef : return 0; -- case gr_slatDir : if (m_bidiCls == -1) -- const_cast<Slot *>(this)->setBidiClass(seg->glyphAttr(gid(), seg->silf()->aBidi())); -- return m_bidiCls; -+ case gr_slatDir : return seg->dir() & 1; - case gr_slatInsert : return isInsertBefore(); - case gr_slatPosX : return int(m_position.x); // but need to calculate it - case gr_slatPosY : return int(m_position.y); - case gr_slatShiftX : return int(m_shift.x); - case gr_slatShiftY : return int(m_shift.y); - case gr_slatMeasureSol: return -1; // err what's this? - case gr_slatMeasureEol: return -1; - case gr_slatJWidth: return int(m_just); - case gr_slatUserDefn : return m_userAttr[subindex]; - case gr_slatSegSplit : return seg->charinfo(m_original)->flags() & 3; - case gr_slatBidiLevel: return m_bidiLevel; -- default : return 0; -+ case gr_slatColFlags : { SlotCollision *c = seg->collisionInfo(this); return c ? c->flags() : 0; } -+ case gr_slatColLimitblx : SLOTGETCOLATTR(limit().bl.x) -+ case gr_slatColLimitbly : SLOTGETCOLATTR(limit().bl.y) -+ case gr_slatColLimittrx : SLOTGETCOLATTR(limit().tr.x) -+ case gr_slatColLimittry : SLOTGETCOLATTR(limit().tr.y) -+ case gr_slatColShiftx : SLOTGETCOLATTR(offset().x) -+ case gr_slatColShifty : SLOTGETCOLATTR(offset().y) -+ case gr_slatColMargin : SLOTGETCOLATTR(margin()) -+ case gr_slatColMarginWt : SLOTGETCOLATTR(marginWt()) -+ case gr_slatColExclGlyph : SLOTGETCOLATTR(exclGlyph()) -+ case gr_slatColExclOffx : SLOTGETCOLATTR(exclOffset().x) -+ case gr_slatColExclOffy : SLOTGETCOLATTR(exclOffset().y) -+ case gr_slatSeqClass : SLOTGETCOLATTR(seqClass()) -+ case gr_slatSeqProxClass : SLOTGETCOLATTR(seqProxClass()) -+ case gr_slatSeqOrder : SLOTGETCOLATTR(seqOrder()) -+ case gr_slatSeqAboveXoff : SLOTGETCOLATTR(seqAboveXoff()) -+ case gr_slatSeqAboveWt : SLOTGETCOLATTR(seqAboveWt()) -+ case gr_slatSeqBelowXlim : SLOTGETCOLATTR(seqBelowXlim()) -+ case gr_slatSeqBelowWt : SLOTGETCOLATTR(seqBelowWt()) -+ case gr_slatSeqValignHt : SLOTGETCOLATTR(seqValignHt()) -+ case gr_slatSeqValignWt : SLOTGETCOLATTR(seqValignWt()) -+ default : return 0; - } - } - -+#define SLOTCOLSETATTR(x) { \ -+ SlotCollision *c = seg->collisionInfo(this); \ -+ if (c) { c-> x ; c->setFlags(c->flags() & ~SlotCollision::COLL_KNOWN); } \ -+ break; } -+#define SLOTCOLSETCOMPLEXATTR(t, y, x) { \ -+ SlotCollision *c = seg->collisionInfo(this); \ -+ if (c) { \ -+ const t &s = c-> y; \ -+ c-> x ; c->setFlags(c->flags() & ~SlotCollision::COLL_KNOWN); } \ -+ break; } -+ - void Slot::setAttr(Segment *seg, attrCode ind, uint8 subindex, int16 value, const SlotMap & map) - { -- if (!this) return; - if (ind == gr_slatUserDefnV1) - { - ind = gr_slatUserDefn; - subindex = 0; - } - else if (ind >= gr_slatJStretch && ind < gr_slatJStretch + 20 && ind != gr_slatJWidth) - { - int indx = ind - gr_slatJStretch; -@@ -247,22 +286,22 @@ void Slot::setAttr(Segment *seg, attrCod - case gr_slatAdvX : m_advance.x = value; break; - case gr_slatAdvY : m_advance.y = value; break; - case gr_slatAttTo : - { - const uint16 idx = uint16(value); - if (idx < map.size() && map[idx]) - { - Slot *other = map[idx]; -- if (other == this) break; -+ if (other == this || other == m_parent) break; - if (m_parent) m_parent->removeChild(this); -- if (other->child(this)) -+ if (!other->isChildOf(this) && other->child(this)) - { - attachTo(other); -- if (((seg->dir() & 1) != 0) ^ (idx > subindex)) -+ if ((map.dir() != 0) ^ (idx > subindex)) - m_with = Position(advance(), 0); - else // normal match to previous root - m_attach = Position(other->advance(), 0); - } - } - break; - } - case gr_slatAttX : m_attach.x = value; break; -@@ -275,29 +314,52 @@ void Slot::setAttr(Segment *seg, attrCod - case gr_slatAttWithYOff : break; - case gr_slatAttLevel : - m_attLevel = byte(value); - break; - case gr_slatBreak : - seg->charinfo(m_original)->breakWeight(value); - break; - case gr_slatCompRef : break; // not sure what to do here -- case gr_slatDir : m_bidiCls = value; break; -+ case gr_slatDir : break; - case gr_slatInsert : - markInsertBefore(value? true : false); - break; - case gr_slatPosX : break; // can't set these here - case gr_slatPosY : break; - case gr_slatShiftX : m_shift.x = value; break; - case gr_slatShiftY : m_shift.y = value; break; - case gr_slatMeasureSol : break; - case gr_slatMeasureEol : break; - case gr_slatJWidth : just(value); break; - case gr_slatSegSplit : seg->charinfo(m_original)->addflags(value & 3); break; - case gr_slatUserDefn : m_userAttr[subindex] = value; break; -+ case gr_slatColFlags : { -+ SlotCollision *c = seg->collisionInfo(this); -+ if (c) -+ c->setFlags(value); -+ break; } -+ case gr_slatColLimitblx : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(Position(value, s.bl.y), s.tr))) -+ case gr_slatColLimitbly : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(Position(s.bl.x, value), s.tr))) -+ case gr_slatColLimittrx : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(s.bl, Position(value, s.tr.y)))) -+ case gr_slatColLimittry : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(s.bl, Position(s.tr.x, value)))) -+ case gr_slatColMargin : SLOTCOLSETATTR(setMargin(value)) -+ case gr_slatColMarginWt : SLOTCOLSETATTR(setMarginWt(value)) -+ case gr_slatColExclGlyph : SLOTCOLSETATTR(setExclGlyph(value)) -+ case gr_slatColExclOffx : SLOTCOLSETCOMPLEXATTR(Position, exclOffset(), setExclOffset(Position(value, s.y))) -+ case gr_slatColExclOffy : SLOTCOLSETCOMPLEXATTR(Position, exclOffset(), setExclOffset(Position(s.x, value))) -+ case gr_slatSeqClass : SLOTCOLSETATTR(setSeqClass(value)) -+ case gr_slatSeqProxClass : SLOTCOLSETATTR(setSeqProxClass(value)) -+ case gr_slatSeqOrder : SLOTCOLSETATTR(setSeqOrder(value)) -+ case gr_slatSeqAboveXoff : SLOTCOLSETATTR(setSeqAboveXoff(value)) -+ case gr_slatSeqAboveWt : SLOTCOLSETATTR(setSeqAboveWt(value)) -+ case gr_slatSeqBelowXlim : SLOTCOLSETATTR(setSeqBelowXlim(value)) -+ case gr_slatSeqBelowWt : SLOTCOLSETATTR(setSeqBelowWt(value)) -+ case gr_slatSeqValignHt : SLOTCOLSETATTR(setSeqValignHt(value)) -+ case gr_slatSeqValignWt : SLOTCOLSETATTR(setSeqValignWt(value)) - default : - break; - } - } - - int Slot::getJustify(const Segment *seg, uint8 level, uint8 subindex) const - { - if (level && level >= seg->silf()->numJustLevels()) return 0; -@@ -369,46 +431,54 @@ bool Slot::removeChild(Slot *ap) - } - - bool Slot::removeSibling(Slot *ap) - { - if (this == ap || !m_sibling) return false; - else if (ap == m_sibling) - { - m_sibling = m_sibling->nextSibling(); -+ ap->sibling(NULL); - return true; - } - else - return m_sibling->removeSibling(ap); - return true; - } - - void Slot::setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph) - { - m_glyphid = glyphid; -+ m_bidiCls = -1; - if (!theGlyph) - { - theGlyph = seg->getFace()->glyphs().glyphSafe(glyphid); - if (!theGlyph) - { - m_realglyphid = 0; - m_advance = Position(0.,0.); - return; - } - } - m_realglyphid = theGlyph->attrs()[seg->silf()->aPseudo()]; -+ if (m_realglyphid > seg->getFace()->glyphs().numGlyphs()) -+ m_realglyphid = 0; - const GlyphFace *aGlyph = theGlyph; - if (m_realglyphid) - { - aGlyph = seg->getFace()->glyphs().glyphSafe(m_realglyphid); - if (!aGlyph) aGlyph = theGlyph; - } - m_advance = Position(aGlyph->theAdvance().x, 0.); - if (seg->silf()->aPassBits()) -+ { - seg->mergePassBits(theGlyph->attrs()[seg->silf()->aPassBits()]); -+ if (seg->silf()->numPasses() > 16) -+ seg->mergePassBits(theGlyph->attrs()[seg->silf()->aPassBits()+1] << 16); -+ } - } - - void Slot::floodShift(Position adj) - { - m_position += adj; - if (m_child) m_child->floodShift(adj); - if (m_sibling) m_sibling->floodShift(adj); - } -@@ -420,8 +490,35 @@ void SlotJustify::LoadSlot(const Slot *s - Justinfo *justs = seg->silf()->justAttrs() + i; - int16 *v = values + i * NUMJUSTPARAMS; - v[0] = seg->glyphAttr(s->gid(), justs->attrStretch()); - v[1] = seg->glyphAttr(s->gid(), justs->attrShrink()); - v[2] = seg->glyphAttr(s->gid(), justs->attrStep()); - v[3] = seg->glyphAttr(s->gid(), justs->attrWeight()); - } - } -+ -+Slot * Slot::nextInCluster(const Slot *s) const -+{ -+ Slot *base; -+ if (s->firstChild()) -+ return s->firstChild(); -+ else if (s->nextSibling()) -+ return s->nextSibling(); -+ while ((base = s->attachedTo())) -+ { -+ // if (base->firstChild() == s && base->nextSibling()) -+ if (base->nextSibling()) -+ return base->nextSibling(); -+ s = base; -+ } -+ return NULL; -+} -+ -+bool Slot::isChildOf(const Slot *base) const -+{ -+ if (m_parent == base) -+ return true; -+ else if (!m_parent) -+ return false; -+ else -+ return m_parent->isChildOf(base); -+} -diff --git a/gfx/graphite2/src/Sparse.cpp b/gfx/graphite2/src/Sparse.cpp ---- a/gfx/graphite2/src/Sparse.cpp -+++ b/gfx/graphite2/src/Sparse.cpp -@@ -25,17 +25,17 @@ License, as published by the Free Softwa - of the License or (at your option) any later version. - */ - #include <cassert> - #include "inc/Sparse.h" - #include "inc/bits.h" - - using namespace graphite2; - --sparse::chunk sparse::empty_chunk = {0,0}; -+const sparse::chunk sparse::empty_chunk = {0,0}; - - sparse::~sparse() throw() - { - if (m_array.map == &empty_chunk) return; - free(m_array.values); - } - - -diff --git a/gfx/graphite2/src/TtfUtil.cpp b/gfx/graphite2/src/TtfUtil.cpp ---- a/gfx/graphite2/src/TtfUtil.cpp -+++ b/gfx/graphite2/src/TtfUtil.cpp -@@ -57,18 +57,20 @@ Description - Forward declarations - ***********************************************************************************************/ - - /*********************************************************************************************** - Local Constants and static variables - ***********************************************************************************************/ - namespace - { -+#ifdef ALL_TTFUTILS - // max number of components allowed in composite glyphs - const int kMaxGlyphComponents = 8; -+#endif - - template <int R, typename T> - inline float fixed_to_float(const T f) { - return float(f)/float(2^R); - } - - /*---------------------------------------------------------------------------------------------- - Table of standard Postscript glyph names. From Martin Hosken. Disagress with ttfdump.exe -@@ -222,69 +224,79 @@ bool GetTableInfo(const Tag TableTag, co - /*---------------------------------------------------------------------------------------------- - Check the specified table. Tests depend on the table type. - Return true if successful, false otherwise. - ----------------------------------------------------------------------------------------------*/ - bool CheckTable(const Tag TableId, const void * pTable, size_t lTableSize) - { - using namespace Sfnt; - -- if (pTable == 0) return false; -+ if (pTable == 0 || lTableSize < 4) return false; - - switch(TableId) - { - case Tag::cmap: // cmap - { - const Sfnt::CharacterCodeMap * const pCmap - = reinterpret_cast<const Sfnt::CharacterCodeMap *>(pTable); -+ if (lTableSize < sizeof(Sfnt::CharacterCodeMap)) -+ return false; - return be::swap(pCmap->version) == 0; - } - - case Tag::head: // head - { - const Sfnt::FontHeader * const pHead - = reinterpret_cast<const Sfnt::FontHeader *>(pTable); -+ if (lTableSize < sizeof(Sfnt::FontHeader)) -+ return false; - bool r = be::swap(pHead->version) == OneFix - && be::swap(pHead->magic_number) == FontHeader::MagicNumber - && be::swap(pHead->glyph_data_format) - == FontHeader::GlypDataFormat - && (be::swap(pHead->index_to_loc_format) - == FontHeader::ShortIndexLocFormat - || be::swap(pHead->index_to_loc_format) - == FontHeader::LongIndexLocFormat) - && sizeof(FontHeader) <= lTableSize; - return r; - } - - case Tag::post: // post - { - const Sfnt::PostScriptGlyphName * const pPost - = reinterpret_cast<const Sfnt::PostScriptGlyphName *>(pTable); -+ if (lTableSize < sizeof(Sfnt::PostScriptGlyphName)) -+ return false; - const fixed format = be::swap(pPost->format); - bool r = format == PostScriptGlyphName::Format1 - || format == PostScriptGlyphName::Format2 - || format == PostScriptGlyphName::Format3 - || format == PostScriptGlyphName::Format25; - return r; - } - - case Tag::hhea: // hhea - { - const Sfnt::HorizontalHeader * pHhea = - reinterpret_cast<const Sfnt::HorizontalHeader *>(pTable); -+ if (lTableSize < sizeof(Sfnt::HorizontalHeader)) -+ return false; - bool r = be::swap(pHhea->version) == OneFix - && be::swap(pHhea->metric_data_format) == 0 - && sizeof (Sfnt::HorizontalHeader) <= lTableSize; - return r; - } - - case Tag::maxp: // maxp - { - const Sfnt::MaximumProfile * pMaxp = - reinterpret_cast<const Sfnt::MaximumProfile *>(pTable); -+ if (lTableSize < sizeof(Sfnt::MaximumProfile)) -+ return false; - bool r = be::swap(pMaxp->version) == OneFix - && sizeof(Sfnt::MaximumProfile) <= lTableSize; - return r; - } - - case Tag::OS_2: // OS/2 - { - const Sfnt::Compatibility * pOs2 -@@ -319,16 +331,18 @@ bool CheckTable(const Tag TableId, const - return false; - break; - } - - case Tag::name: - { - const Sfnt::FontNames * pName - = reinterpret_cast<const Sfnt::FontNames *>(pTable); -+ if (lTableSize < sizeof(Sfnt::FontNames)) -+ return false; - return be::swap(pName->format) == 0; - } - - default: - break; - } - - return true; -@@ -791,27 +805,27 @@ bool HorMetrics(gid16 nGlyphId, const vo - reinterpret_cast<const Sfnt::HorizontalMetric *>(pHmtx); - - const Sfnt::HorizontalHeader * phhea = - reinterpret_cast<const Sfnt::HorizontalHeader *>(pHhea); - - size_t cLongHorMetrics = be::swap(phhea->num_long_hor_metrics); - if (nGlyphId < cLongHorMetrics) - { // glyph id is acceptable -- if (nGlyphId * sizeof(Sfnt::HorizontalMetric) >= lHmtxSize) return false; -+ if ((nGlyphId + 1) * sizeof(Sfnt::HorizontalMetric) > lHmtxSize) return false; - nAdvWid = be::swap(phmtx[nGlyphId].advance_width); - nLsb = be::swap(phmtx[nGlyphId].left_side_bearing); - } - else - { - // guard against bad glyph id - size_t lLsbOffset = sizeof(Sfnt::HorizontalMetric) * cLongHorMetrics + - sizeof(int16) * (nGlyphId - cLongHorMetrics); // offset in bytes - // We test like this as LsbOffset is an offset not a length. -- if (lLsbOffset > lHmtxSize - sizeof(int16)) -+ if (lLsbOffset >= lHmtxSize - sizeof(int16) || cLongHorMetrics == 0) - { - nLsb = 0; - return false; - } - nAdvWid = be::swap(phmtx[cLongHorMetrics - 1].advance_width); - nLsb = be::peek<int16>(reinterpret_cast<const byte *>(phmtx) + lLsbOffset); - } - -@@ -833,31 +847,33 @@ const void * FindCmapSubtable(const void - { - if (be::swap(pTable->encoding[i].platform_id) == nPlatformId && - (nEncodingId == -1 || be::swap(pTable->encoding[i].platform_specific_id) == nEncodingId)) - { - uint32 offset = be::swap(pTable->encoding[i].offset); - const uint8 * pRtn = reinterpret_cast<const uint8 *>(pCmap) + offset; - if (length) - { -- if (offset > length) return NULL; -+ if (offset > length - 2) return NULL; - uint16 format = be::read<uint16>(pRtn); - if (format == 4) - { -+ if (offset > length - 4) return NULL; - uint16 subTableLength = be::peek<uint16>(pRtn); - if (i + 1 == csuPlatforms) - { - if (subTableLength > length - offset) - return NULL; - } - else if (subTableLength > be::swap(pTable->encoding[i+1].offset)) - return NULL; - } - if (format == 12) - { -+ if (offset > length - 6) return NULL; - uint32 subTableLength = be::peek<uint32>(pRtn); - if (i + 1 == csuPlatforms) - { - if (subTableLength > length - offset) - return NULL; - } - else if (subTableLength > be::swap(pTable->encoding[i+1].offset)) - return NULL; -@@ -868,48 +884,80 @@ const void * FindCmapSubtable(const void - } - - return 0; - } - - /*---------------------------------------------------------------------------------------------- - Check the Microsoft Unicode subtable for expected values - ----------------------------------------------------------------------------------------------*/ --bool CheckCmapSubtable4(const void * pCmapSubtable4) -+bool CheckCmapSubtable4(const void * pCmapSubtable4, size_t table_len /*, unsigned int maxgid*/) - { - if (!pCmapSubtable4) return false; - const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable4); -- // Bob H says ome freeware TT fonts have version 1 (eg, CALIGULA.TTF) -+ // Bob H say some freeware TT fonts have version 1 (eg, CALIGULA.TTF) - // so don't check subtable version. 21 Mar 2002 spec changes version to language. - if (be::swap(pTable->format) != 4) return false; - const Sfnt::CmapSubTableFormat4 * pTable4 = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtable4); - uint16 length = be::swap(pTable4->length); -+ if (length > table_len) -+ return false; - if (length < sizeof(Sfnt::CmapSubTableFormat4)) - return false; - uint16 nRanges = be::swap(pTable4->seg_count_x2) >> 1; - if (length < sizeof(Sfnt::CmapSubTableFormat4) + 4 * nRanges * sizeof(uint16)) - return false; - // check last range is properly terminated - uint16 chEnd = be::peek<uint16>(pTable4->end_code + nRanges - 1); -- return (chEnd == 0xFFFF); -+ if (chEnd != 0xFFFF) -+ return false; -+#if 0 -+ int lastend = -1; -+ for (int i = 0; i < nRanges; ++i) -+ { -+ uint16 end = be::peek<uint16>(pTable4->end_code + i); -+ uint16 start = be::peek<uint16>(pTable4->end_code + nRanges + 1 + i); -+ int16 delta = be::peek<int16>(pTable4->end_code + 2*nRanges + 1 + i); -+ uint16 offset = be::peek<uint16>(pTable4->end_code + 3*nRanges + 1 + i); -+ if (lastend >= end || lastend >= start) -+ return false; -+ if (offset) -+ { -+ const uint16 *gstart = pTable4->end_code + 3*nRanges + 1 + i + (offset >> 1); -+ const uint16 *gend = gstart + end - start; -+ if ((char *)gend >= (char *)pCmapSubtable4 + length) -+ return false; -+ while (gstart <= gend) -+ { -+ uint16 g = be::peek<uint16>(gstart++); -+ if (g && ((g + delta) & 0xFFFF) > maxgid) -+ return false; -+ } -+ } -+ else if (((delta + end) & 0xFFFF) > maxgid) -+ return false; -+ lastend = end; -+ } -+#endif -+ return true; - } - - /*---------------------------------------------------------------------------------------------- - Return the Glyph ID for the given Unicode ID in the Microsoft Unicode subtable. - (Actually this code only depends on subtable being format 4.) - Return 0 if the Unicode ID is not in the subtable. - ----------------------------------------------------------------------------------------------*/ - gid16 CmapSubtable4Lookup(const void * pCmapSubtabel4, unsigned int nUnicodeId, int rangeKey) - { - const Sfnt::CmapSubTableFormat4 * pTable = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtabel4); - - uint16 nSeg = be::swap(pTable->seg_count_x2) >> 1; - - uint16 n; -- const uint16 * pLeft, * pMid; -+ const uint16 * pLeft, * pMid; - uint16 cMid, chStart, chEnd; - - if (rangeKey) - { - pMid = &(pTable->end_code[rangeKey]); - chEnd = be::peek<uint16>(pMid); - } - else -@@ -1027,29 +1075,41 @@ unsigned int CmapSubtable4NextCodepoint( - if (pRangeKey) - *pRangeKey = iRange + 1; - return be::peek<uint16>(pStartCode + iRange + 1); - } - - /*---------------------------------------------------------------------------------------------- - Check the Microsoft UCS-4 subtable for expected values. - ----------------------------------------------------------------------------------------------*/ --bool CheckCmapSubtable12(const void *pCmapSubtable12) -+bool CheckCmapSubtable12(const void *pCmapSubtable12, size_t table_len /*, unsigned int maxgid*/) - { - if (!pCmapSubtable12) return false; - const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable12); - if (be::swap(pTable->format) != 12) - return false; - const Sfnt::CmapSubTableFormat12 * pTable12 = reinterpret_cast<const Sfnt::CmapSubTableFormat12 *>(pCmapSubtable12); - uint32 length = be::swap(pTable12->length); -+ if (length > table_len) -+ return false; - if (length < sizeof(Sfnt::CmapSubTableFormat12)) - return false; -- -- return (length == (sizeof(Sfnt::CmapSubTableFormat12) + (be::swap(pTable12->num_groups) - 1) -- * sizeof(uint32) * 3)); -+ uint32 num_groups = be::swap(pTable12->num_groups); -+ if (length != (sizeof(Sfnt::CmapSubTableFormat12) + (num_groups - 1) * sizeof(uint32) * 3)) -+ return false; -+#if 0 -+ for (unsigned int i = 0; i < num_groups; ++i) -+ { -+ if (be::swap(pTable12->group[i].end_char_code) - be::swap(pTable12->group[i].start_char_code) + be::swap(pTable12->group[i].start_glyph_id) > maxgid) -+ return false; -+ if (i > 0 && be::swap(pTable12->group[i].start_char_code) <= be::swap(pTable12->group[i-1].end_char_code)) -+ return false; -+ } -+#endif -+ return true; - } - - /*---------------------------------------------------------------------------------------------- - Return the Glyph ID for the given Unicode ID in the Microsoft UCS-4 subtable. - (Actually this code only depends on subtable being format 12.) - Return 0 if the Unicode ID is not in the subtable. - ----------------------------------------------------------------------------------------------*/ - gid16 CmapSubtable12Lookup(const void * pCmap310, unsigned int uUnicodeId, int rangeKey) -@@ -1140,49 +1200,53 @@ unsigned int CmapSubtable12NextCodepoint - Technically this method should return an unsigned long but it is unlikely the offset will - exceed 2^31. - ----------------------------------------------------------------------------------------------*/ - size_t LocaLookup(gid16 nGlyphId, - const void * pLoca, size_t lLocaSize, - const void * pHead) // throw (std::out_of_range) - { - const Sfnt::FontHeader * pTable = reinterpret_cast<const Sfnt::FontHeader *>(pHead); -+ size_t res = -2; - - // CheckTable verifies the index_to_loc_format is valid - if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::ShortIndexLocFormat) - { // loca entries are two bytes and have been divided by two -- if (nGlyphId < (lLocaSize >> 1) - 1) // allow sentinel value to be accessed -+ if (lLocaSize > 1 && nGlyphId + 1u < lLocaSize >> 1) // allow sentinel value to be accessed - { - const uint16 * pShortTable = reinterpret_cast<const uint16 *>(pLoca); -- return (be::peek<uint16>(pShortTable + nGlyphId) << 1); -+ res = be::peek<uint16>(pShortTable + nGlyphId) << 1; -+ if (res == static_cast<size_t>(be::peek<uint16>(pShortTable + nGlyphId + 1) << 1)) -+ return -1; - } - } -- -- if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::LongIndexLocFormat) -+ else if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::LongIndexLocFormat) - { // loca entries are four bytes -- if (nGlyphId < (lLocaSize >> 2) - 1) -+ if (lLocaSize > 3 && nGlyphId + 1u < lLocaSize >> 2) - { - const uint32 * pLongTable = reinterpret_cast<const uint32 *>(pLoca); -- return be::peek<uint32>(pLongTable + nGlyphId); -+ res = be::peek<uint32>(pLongTable + nGlyphId); -+ if (res == static_cast<size_t>(be::peek<uint32>(pLongTable + nGlyphId + 1))) -+ return -1; - } - } - - // only get here if glyph id was bad -- return -1; -+ return res; - //throw std::out_of_range("glyph id out of range for font"); - } - - /*---------------------------------------------------------------------------------------------- - Return a pointer into the glyf table based on the given offset (from LocaLookup). - Return NULL on error. - ----------------------------------------------------------------------------------------------*/ - void * GlyfLookup(const void * pGlyf, size_t nGlyfOffset, size_t nTableLen) - { - const uint8 * pByte = reinterpret_cast<const uint8 *>(pGlyf); -- if (nGlyfOffset == size_t(-1) || nGlyfOffset >= nTableLen) -+ if (nGlyfOffset + pByte < pByte || nGlyfOffset + sizeof(Sfnt::Glyph) >= nTableLen) - return NULL; - return const_cast<uint8 *>(pByte + nGlyfOffset); - } - - /*---------------------------------------------------------------------------------------------- - Get the bounding box coordinates for a simple glyf entry (non-composite). - Return true if successful, false otherwise. - ----------------------------------------------------------------------------------------------*/ -@@ -1784,17 +1848,16 @@ bool GlyfContourEndPoints(gid16 nGlyphId - cnPoints - count of points from largest end point obtained from GlyfContourEndPoints - prgnX & prgnY - should point to buffers large enough to hold cnPoints integers - The ranges are parallel so that coordinates for point(n) are found at offset n in - both ranges. These points are in absolute coordinates. - prgfOnCurve - should point to a buffer a large enough to hold cnPoints bytes (bool) - This range is parallel to the prgnX & prgnY - Return true if successful, false otherwise. On false, all points may be INT_MIN - False may indicate a white space glyph, a multi-level composite, or a corrupt font -- // TODO: doesn't support composite glyphs whose components are themselves components - It's not clear from the TTF spec when the transforms should be applied. Should the - transform be done before or after attachment point calcs? (current code - before) - Should the transform be applied to other offsets? (currently - no; however commented - out code is in place so that if CompoundGlyph::UnscaledOffset on the MS rasterizer is - clear (typical) then yes, and if CompoundGlyph::ScaledOffset on the Apple rasterizer is - clear (typical?) then no). See GetComponentTransform. - It's also unclear where point numbering with attachment poinst starts - (currently - first point number is relative to whole glyph, second point number is -diff --git a/gfx/graphite2/src/call_machine.cpp b/gfx/graphite2/src/call_machine.cpp ---- a/gfx/graphite2/src/call_machine.cpp -+++ b/gfx/graphite2/src/call_machine.cpp -@@ -65,57 +65,60 @@ using namespace graphite2; - using namespace vm; - - struct regbank { - slotref is; - slotref * map; - SlotMap & smap; - slotref * const map_base; - const instr * & ip; -+ uint8 direction; - int8 flags; - }; - - typedef bool (* ip_t)(registers); - - // Pull in the opcode definitions - // We pull these into a private namespace so these otherwise common names dont - // pollute the toplevel namespace. - namespace { - #define smap reg.smap - #define seg smap.segment - #define is reg.is - #define ip reg.ip - #define map reg.map - #define mapb reg.map_base - #define flags reg.flags -+#define dir reg.direction - - #include "inc/opcodes.h" - - #undef smap - #undef seg - #undef is - #undef ip - #undef map - #undef mapb - #undef flags -+#undef dir - } - - Machine::stack_t Machine::run(const instr * program, - const byte * data, - slotref * & map) - - { - assert(program != 0); - - // Declare virtual machine registers - const instr * ip = program-1; - const byte * dp = data; - stack_t * sp = _stack + Machine::STACK_GUARD, - * const sb = sp; -- regbank reg = {*map, map, _map, _map.begin()+_map.context(), ip, 0}; -+ regbank reg = {*map, map, _map, _map.begin()+_map.context(), ip, _map.dir(), 0}; - - // Run the program - while ((reinterpret_cast<ip_t>(*++ip))(dp, sp, sb, reg)) {} - const stack_t ret = sp == _stack+STACK_GUARD+1 ? *sp-- : 0; - - check_final_stack(sp); - map = reg.map; - *map = reg.is; -diff --git a/gfx/graphite2/src/direct_machine.cpp b/gfx/graphite2/src/direct_machine.cpp ---- a/gfx/graphite2/src/direct_machine.cpp -+++ b/gfx/graphite2/src/direct_machine.cpp -@@ -56,16 +56,17 @@ using namespace vm; - - namespace { - - const void * direct_run(const bool get_table_mode, - const instr * program, - const byte * data, - Machine::stack_t * stack, - slotref * & __map, -+ uint8 _dir, - SlotMap * __smap=0) - { - // We need to define and return to opcode table from within this function - // other inorder to take the addresses of the instruction bodies. - #include "inc/opcode_table.h" - if (get_table_mode) - return opcode_table; - -@@ -74,16 +75,17 @@ const void * direct_run(const bool - const byte * dp = data; - Machine::stack_t * sp = stack + Machine::STACK_GUARD, - * const sb = sp; - SlotMap & smap = *__smap; - Segment & seg = smap.segment; - slotref is = *__map, - * map = __map, - * const mapb = smap.begin()+smap.context(); -+ uint8 dir = _dir; - int8 flags = 0; - - // start the program - goto **ip; - - // Pull in the opcode definitions - #include "inc/opcodes.h" - -@@ -104,14 +106,14 @@ const opcode_t * Machine::getOpcodeTable - - Machine::stack_t Machine::run(const instr * program, - const byte * data, - slotref * & is) - { - assert(program != 0); - - const stack_t *sp = static_cast<const stack_t *>( -- direct_run(false, program, data, _stack, is, &_map)); -+ direct_run(false, program, data, _stack, is, _map.dir(), &_map)); - const stack_t ret = sp == _stack+STACK_GUARD+1 ? *sp-- : 0; - check_final_stack(sp); - return ret; - } - -diff --git a/gfx/graphite2/src/files.mk b/gfx/graphite2/src/files.mk ---- a/gfx/graphite2/src/files.mk -+++ b/gfx/graphite2/src/files.mk -@@ -42,29 +42,32 @@ - $($(_NS)_BASE)/src/gr_char_info.cpp \ - $($(_NS)_BASE)/src/gr_face.cpp \ - $($(_NS)_BASE)/src/gr_features.cpp \ - $($(_NS)_BASE)/src/gr_font.cpp \ - $($(_NS)_BASE)/src/gr_logging.cpp \ - $($(_NS)_BASE)/src/gr_segment.cpp \ - $($(_NS)_BASE)/src/gr_slot.cpp \ - $($(_NS)_BASE)/src/json.cpp \ -- $($(_NS)_BASE)/src/Bidi.cpp \ - $($(_NS)_BASE)/src/CachedFace.cpp \ - $($(_NS)_BASE)/src/CmapCache.cpp \ - $($(_NS)_BASE)/src/Code.cpp \ -+ $($(_NS)_BASE)/src/Collider.cpp \ -+ $($(_NS)_BASE)/src/Decompressor.cpp \ - $($(_NS)_BASE)/src/Face.cpp \ - $($(_NS)_BASE)/src/FeatureMap.cpp \ - $($(_NS)_BASE)/src/FileFace.cpp \ - $($(_NS)_BASE)/src/Font.cpp \ - $($(_NS)_BASE)/src/GlyphCache.cpp \ - $($(_NS)_BASE)/src/GlyphFace.cpp \ -+ $($(_NS)_BASE)/src/Intervals.cpp \ - $($(_NS)_BASE)/src/Justifier.cpp \ - $($(_NS)_BASE)/src/NameTable.cpp \ - $($(_NS)_BASE)/src/Pass.cpp \ -+ $($(_NS)_BASE)/src/Position.cpp \ - $($(_NS)_BASE)/src/SegCache.cpp \ - $($(_NS)_BASE)/src/SegCacheEntry.cpp \ - $($(_NS)_BASE)/src/SegCacheStore.cpp \ - $($(_NS)_BASE)/src/Segment.cpp \ - $($(_NS)_BASE)/src/Silf.cpp \ - $($(_NS)_BASE)/src/Slot.cpp \ - $($(_NS)_BASE)/src/Sparse.cpp \ - $($(_NS)_BASE)/src/TtfUtil.cpp \ -@@ -73,25 +76,29 @@ - $(_NS)_PRIVATE_HEADERS = \ - $($(_NS)_BASE)/src/inc/bits.h \ - $($(_NS)_BASE)/src/inc/debug.h \ - $($(_NS)_BASE)/src/inc/json.h \ - $($(_NS)_BASE)/src/inc/CachedFace.h \ - $($(_NS)_BASE)/src/inc/CharInfo.h \ - $($(_NS)_BASE)/src/inc/CmapCache.h \ - $($(_NS)_BASE)/src/inc/Code.h \ -+ $($(_NS)_BASE)/src/inc/Collider.h \ -+ $($(_NS)_BASE)/src/inc/Compression.h \ -+ $($(_NS)_BASE)/src/inc/Decompressor.h \ - $($(_NS)_BASE)/src/inc/Endian.h \ - $($(_NS)_BASE)/src/inc/Error.h \ - $($(_NS)_BASE)/src/inc/Face.h \ - $($(_NS)_BASE)/src/inc/FeatureMap.h \ - $($(_NS)_BASE)/src/inc/FeatureVal.h \ - $($(_NS)_BASE)/src/inc/FileFace.h \ - $($(_NS)_BASE)/src/inc/Font.h \ - $($(_NS)_BASE)/src/inc/GlyphCache.h \ - $($(_NS)_BASE)/src/inc/GlyphFace.h \ -+ $($(_NS)_BASE)/src/inc/Intervals.h \ - $($(_NS)_BASE)/src/inc/List.h \ - $($(_NS)_BASE)/src/inc/locale2lcid.h \ - $($(_NS)_BASE)/src/inc/Machine.h \ - $($(_NS)_BASE)/src/inc/Main.h \ - $($(_NS)_BASE)/src/inc/NameTable.h \ - $($(_NS)_BASE)/src/inc/opcode_table.h \ - $($(_NS)_BASE)/src/inc/opcodes.h \ - $($(_NS)_BASE)/src/inc/Pass.h \ -diff --git a/gfx/graphite2/src/gr_face.cpp b/gfx/graphite2/src/gr_face.cpp ---- a/gfx/graphite2/src/gr_face.cpp -+++ b/gfx/graphite2/src/gr_face.cpp -@@ -41,17 +41,17 @@ extern json *global_log; - - namespace - { - bool load_face(Face & face, unsigned int options) - { - #ifdef GRAPHITE2_TELEMETRY - telemetry::category _misc_cat(face.tele.misc); - #endif -- Face::Table silf(face, Tag::Silf); -+ Face::Table silf(face, Tag::Silf, 0x00050000); - if (silf) options &= ~gr_face_dumbRendering; - else if (!(options & gr_face_dumbRendering)) - return false; - - if (!face.readGlyphs(options)) - return false; - - if (silf) -diff --git a/gfx/graphite2/src/gr_logging.cpp b/gfx/graphite2/src/gr_logging.cpp ---- a/gfx/graphite2/src/gr_logging.cpp -+++ b/gfx/graphite2/src/gr_logging.cpp -@@ -19,24 +19,25 @@ - Suite 500, Boston, MA 02110-1335, USA or visit their web page on the - internet at http://www.fsf.org/licenses/lgpl.html. - - Alternatively, the contents of this file may be used under the terms of the - Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ --#include <stdio.h> -+#include <cstdio> - - #include "graphite2/Log.h" - #include "inc/debug.h" - #include "inc/CharInfo.h" - #include "inc/Slot.h" - #include "inc/Segment.h" - #include "inc/json.h" -+#include "inc/Collider.h" - - #if defined _WIN32 - #include "windows.h" - #endif - - using namespace graphite2; - - #if !defined GRAPHITE2_NTRACING -@@ -179,16 +180,17 @@ json & graphite2::operator << (json & j, - - - json & graphite2::operator << (json & j, const dslot & ds) throw() - { - assert(ds.first); - assert(ds.second); - const Segment & seg = *ds.first; - const Slot & s = *ds.second; -+ const SlotCollision *cslot = seg.collisionInfo(ds.second); - - j << json::object - << "id" << objectid(ds) - << "gid" << s.gid() - << "charinfo" << json::flat << json::object - << "original" << s.original() - << "before" << s.before() - << "after" << s.after() -@@ -215,16 +217,38 @@ json & graphite2::operator << (json & j, - j << json::close; - if (s.firstChild()) - { - j << "children" << json::flat << json::array; - for (const Slot *c = s.firstChild(); c; c = c->nextSibling()) - j << objectid(dslot(&seg, c)); - j << json::close; - } -+ if (cslot) -+ { -+ // Note: the reason for using Positions to lump together related attributes is to make the -+ // JSON output slightly more compact. -+ j << "collision" << json::flat << json::object -+// << "shift" << cslot->shift() -- not used pass level, only within the collision routine itself -+ << "offset" << cslot->offset() -+ << "limit" << cslot->limit() -+ << "flags" << cslot->flags() -+ << "margin" << Position(cslot->margin(), cslot->marginWt()) -+ << "exclude" << cslot->exclGlyph() -+ << "excludeoffset" << cslot->exclOffset(); -+ if (cslot->seqOrder() != 0) -+ { -+ j << "seqclass" << Position(cslot->seqClass(), cslot->seqProxClass()) -+ << "seqorder" << cslot->seqOrder() -+ << "seqabove" << Position(cslot->seqAboveXoff(), cslot->seqAboveWt()) -+ << "seqbelow" << Position(cslot->seqBelowXlim(), cslot->seqBelowWt()) -+ << "seqvalign" << Position(cslot->seqValignHt(), cslot->seqValignWt()); -+ } -+ j << json::close; -+ } - return j << json::close; - } - - - graphite2::objectid::objectid(const dslot & ds) throw() - { - const Slot * const p = ds.second; - uint32 s = reinterpret_cast<size_t>(p); -diff --git a/gfx/graphite2/src/gr_segment.cpp b/gfx/graphite2/src/gr_segment.cpp ---- a/gfx/graphite2/src/gr_segment.cpp -+++ b/gfx/graphite2/src/gr_segment.cpp -@@ -43,21 +43,17 @@ namespace - Segment* pRes=new Segment(nChars, face, script, dir); - - - if (!pRes->read_text(face, pFeats, enc, pStart, nChars) || !pRes->runGraphite()) - { - delete pRes; - return NULL; - } -- // run the line break passes -- // run the substitution passes -- pRes->prepare_pos(font); -- // run the positioning passes -- pRes->finalise(font); -+ pRes->finalise(font, true); - - return static_cast<gr_segment*>(pRes); - } - - - } - - -diff --git a/gfx/graphite2/src/gr_slot.cpp b/gfx/graphite2/src/gr_slot.cpp ---- a/gfx/graphite2/src/gr_slot.cpp -+++ b/gfx/graphite2/src/gr_slot.cpp -@@ -98,21 +98,21 @@ float gr_slot_advance_X(const gr_slot* p - if (face && font->isHinted()) - res = (res - face->glyphs().glyph(p->gid())->theAdvance().x) * scale + font->advance(p->gid()); - else - res = res * scale; - } - return res; - } - --float gr_slot_advance_Y(const gr_slot *p/*not NULL*/, const gr_face *face, const gr_font *font) -+float gr_slot_advance_Y(const gr_slot *p/*not NULL*/, GR_MAYBE_UNUSED const gr_face *face, const gr_font *font) - { - assert(p); - float res = p->advancePos().y; -- if (font && (face || !face)) -+ if (font) - return res * font->scale(); - else - return res; - } - - int gr_slot_before(const gr_slot* p/*not NULL*/) - { - assert(p); -diff --git a/gfx/graphite2/src/inc/Code.h b/gfx/graphite2/src/inc/Code.h ---- a/gfx/graphite2/src/inc/Code.h -+++ b/gfx/graphite2/src/inc/Code.h -@@ -36,32 +36,41 @@ of the License or (at your option) any l - #include "inc/Main.h" - #include "inc/Machine.h" - - namespace graphite2 { - - class Silf; - class Face; - -+enum passtype { -+ PASS_TYPE_UNKNOWN = 0, -+ PASS_TYPE_LINEBREAK, -+ PASS_TYPE_SUBSTITUTE, -+ PASS_TYPE_POSITIONING, -+ PASS_TYPE_JUSTIFICATION -+}; -+ - namespace vm { - - class Machine::Code - { - public: - enum status_t - { - loaded, - alloc_failed, - invalid_opcode, - unimplemented_opcode_used, - out_of_range_data, - jump_past_end, - arguments_exhausted, - missing_return, -- nested_context_item -+ nested_context_item, -+ underfull_stack - }; - - private: - class decoder; - - instr * _code; - byte * _data; - size_t _data_size, -@@ -72,40 +81,51 @@ private: - _modify, - _delete; - mutable bool _own; - - void release_buffers() throw (); - void failure(const status_t) throw(); - - public: -+ static size_t estimateCodeDataOut(size_t num_bytecodes); -+ - Code() throw(); - Code(bool is_constraint, const byte * bytecode_begin, const byte * const bytecode_end, -- uint8 pre_context, uint16 rule_length, const Silf &, const Face &); -+ uint8 pre_context, uint16 rule_length, const Silf &, const Face &, -+ enum passtype pt, byte * * const _out = 0); - Code(const Machine::Code &) throw(); - ~Code() throw(); - - Code & operator=(const Code &rhs) throw(); -- operator bool () const throw(); -- status_t status() const throw(); -- bool constraint() const throw(); -- size_t dataSize() const throw(); -- size_t instructionCount() const throw(); -- bool immutable() const throw(); -- bool deletes() const throw(); -- size_t maxRef() const throw(); -+ operator bool () const throw() { return _code && status() == loaded; } -+ status_t status() const throw() { return _status; } -+ bool constraint() const throw() { return _constraint; } -+ size_t dataSize() const throw() { return _data_size; } -+ size_t instructionCount() const throw() { return _instr_count; } -+ bool immutable() const throw() { return !(_delete || _modify); } -+ bool deletes() const throw() { return _delete; } -+ size_t maxRef() const throw() { return _max_ref; } -+ void externalProgramMoved(ptrdiff_t) throw(); - - int32 run(Machine &m, slotref * & map) const; - - CLASS_NEW_DELETE; - }; - -+inline -+size_t Machine::Code::estimateCodeDataOut(size_t n_bc) -+{ -+ return n_bc * (sizeof(instr)+sizeof(byte)); -+} -+ -+ - inline Machine::Code::Code() throw() - : _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0), -- _status(loaded), _constraint(false), _modify(false),_delete(false), -+ _status(loaded), _constraint(false), _modify(false), _delete(false), - _own(false) - { - } - - inline Machine::Code::Code(const Machine::Code &obj) throw () - : _code(obj._code), - _data(obj._data), - _data_size(obj._data_size), -@@ -131,45 +151,19 @@ inline Machine::Code & Machine::Code::op - _constraint = rhs._constraint; - _modify = rhs._modify; - _delete = rhs._delete; - _own = rhs._own; - rhs._own = false; - return *this; - } - --inline Machine::Code::operator bool () const throw () { -- return _code && status() == loaded; --} -- --inline Machine::Code::status_t Machine::Code::status() const throw() { -- return _status; --} -- --inline bool Machine::Code::constraint() const throw() { -- return _constraint; --} -- --inline size_t Machine::Code::dataSize() const throw() { -- return _data_size; --} -- --inline size_t Machine::Code::instructionCount() const throw() { -- return _instr_count; --} -- --inline bool Machine::Code::immutable() const throw() -+inline void Machine::Code::externalProgramMoved(ptrdiff_t dist) throw() - { -- return !(_delete || _modify); --} -- --inline bool Machine::Code::deletes() const throw() --{ -- return _delete; --} -- --inline size_t Machine::Code::maxRef() const throw() --{ -- return _max_ref; -+ if (_code && !_own) -+ { -+ _code += dist / sizeof(instr); -+ _data += dist; -+ } - } - - } // namespace vm - } // namespace graphite2 -diff --git a/gfx/graphite2/src/inc/Collider.h b/gfx/graphite2/src/inc/Collider.h -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/inc/Collider.h -@@ -0,0 +1,242 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2010, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+#pragma once -+ -+#include "inc/List.h" -+#include "inc/Position.h" -+#include "inc/Intervals.h" -+#include "inc/debug.h" -+ -+namespace graphite2 { -+ -+class json; -+class Slot; -+class Segment; -+ -+#define SLOTCOLSETUINTPROP(x, y) uint16 x() const { return _ ##x; } void y (uint16 v) { _ ##x = v; } -+#define SLOTCOLSETINTPROP(x, y) int16 x() const { return _ ##x; } void y (int16 v) { _ ##x = v; } -+#define SLOTCOLSETPOSITIONPROP(x, y) const Position &x() const { return _ ##x; } void y (const Position &v) { _ ##x = v; } -+ -+// Slot attributes related to collision-fixing -+class SlotCollision -+{ -+public: -+ enum { -+ // COLL_TESTONLY = 0, // default - test other glyphs for collision with this one, but don't move this one -+ COLL_FIX = 1, // fix collisions involving this glyph -+ COLL_IGNORE = 2, // ignore this glyph altogether -+ COLL_START = 4, // start of range of possible collisions -+ COLL_END = 8, // end of range of possible collisions -+ COLL_KERN = 16, // collisions with this glyph are fixed by adding kerning space after it -+ COLL_ISCOL = 32, // this glyph has a collision -+ COLL_KNOWN = 64, // we've figured out what's happening with this glyph -+ COLL_TEMPLOCK = 128, // Lock glyphs that have been given priority positioning -+ ////COLL_JUMPABLE = 128, // moving glyphs may jump this stationary glyph in any direction - DELETE -+ ////COLL_OVERLAP = 256, // use maxoverlap to restrict - DELETE -+ }; -+ -+ // Behavior for the collision.order attribute. To GDL this is an enum, to us it's a bitfield, with only 1 bit set -+ // Allows for easier inversion. -+ enum { -+ SEQ_ORDER_LEFTDOWN = 1, -+ SEQ_ORDER_RIGHTUP = 2, -+ SEQ_ORDER_NOABOVE = 4, -+ SEQ_ORDER_NOBELOW = 8, -+ SEQ_ORDER_NOLEFT = 16, -+ SEQ_ORDER_NORIGHT = 32 -+ }; -+ -+ SlotCollision(Segment *seg, Slot *slot); -+ void initFromSlot(Segment *seg, Slot *slot); -+ -+ const Rect &limit() const { return _limit; } -+ void setLimit(const Rect &r) { _limit = r; } -+ SLOTCOLSETPOSITIONPROP(shift, setShift) -+ SLOTCOLSETPOSITIONPROP(offset, setOffset) -+ SLOTCOLSETPOSITIONPROP(exclOffset, setExclOffset) -+ SLOTCOLSETUINTPROP(margin, setMargin) -+ SLOTCOLSETUINTPROP(marginWt, setMarginWt) -+ SLOTCOLSETUINTPROP(flags, setFlags) -+ SLOTCOLSETUINTPROP(exclGlyph, setExclGlyph) -+ SLOTCOLSETUINTPROP(seqClass, setSeqClass) -+ SLOTCOLSETUINTPROP(seqProxClass, setSeqProxClass) -+ SLOTCOLSETUINTPROP(seqOrder, setSeqOrder) -+ SLOTCOLSETINTPROP(seqAboveXoff, setSeqAboveXoff) -+ SLOTCOLSETUINTPROP(seqAboveWt, setSeqAboveWt) -+ SLOTCOLSETINTPROP(seqBelowXlim, setSeqBelowXlim) -+ SLOTCOLSETUINTPROP(seqBelowWt, setSeqBelowWt) -+ SLOTCOLSETUINTPROP(seqValignHt, setSeqValignHt) -+ SLOTCOLSETUINTPROP(seqValignWt, setSeqValignWt) -+ -+ float getKern(int dir) const; -+ -+private: -+ Rect _limit; -+ Position _shift; // adjustment within the given pass -+ Position _offset; // total adjustment for collisions -+ Position _exclOffset; -+ uint16 _margin; -+ uint16 _marginWt; -+ uint16 _flags; -+ uint16 _exclGlyph; -+ uint16 _seqClass; -+ uint16 _seqProxClass; -+ uint16 _seqOrder; -+ int16 _seqAboveXoff; -+ uint16 _seqAboveWt; -+ int16 _seqBelowXlim; -+ uint16 _seqBelowWt; -+ uint16 _seqValignHt; -+ uint16 _seqValignWt; -+ -+}; // end of class SlotColllision -+ -+struct BBox; -+struct SlantBox; -+ -+class ShiftCollider -+{ -+public: -+ typedef std::pair<float, float> fpair; -+ typedef Vector<fpair> vfpairs; -+ typedef vfpairs::iterator ivfpairs; -+ -+ ShiftCollider(json *dbgout); -+ ~ShiftCollider() throw() { }; -+ -+ bool initSlot(Segment *seg, Slot *aSlot, const Rect &constraint, -+ float margin, float marginMin, const Position &currShift, -+ const Position &currOffset, int dir, GR_MAYBE_UNUSED json * const dbgout); -+ bool mergeSlot(Segment *seg, Slot *slot, const Position &currShift, bool isAfter, -+ bool sameCluster, bool &hasCol, bool isExclusion, GR_MAYBE_UNUSED json * const dbgout); -+ Position resolve(Segment *seg, bool &isCol, GR_MAYBE_UNUSED json * const dbgout); -+ void addBox_slope(bool isx, const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, float weight, float m, bool minright, int mode); -+ void removeBox(const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, int mode); -+ const Position &origin() const { return _origin; } -+ -+#if !defined GRAPHITE2_NTRACING -+ void outputJsonDbg(json * const dbgout, Segment *seg, int axis); -+ void outputJsonDbgStartSlot(json * const dbgout, Segment *seg); -+ void outputJsonDbgEndSlot(json * const dbgout, Position resultPos, int bestAxis, bool isCol); -+ void outputJsonDbgOneVector(json * const dbgout, Segment *seg, int axis, float tleft, float bestCost, float bestVal); -+ void outputJsonDbgRawRanges(json * const dbgout, int axis); -+ void outputJsonDbgRemovals(json * const dbgout, int axis, Segment *seg); -+#endif -+ -+ CLASS_NEW_DELETE; -+ -+protected: -+ Zones _ranges[4]; // possible movements in 4 directions (horizontally, vertically, diagonally); -+ Slot * _target; // the glyph to fix -+ Rect _limit; -+ Position _currShift; -+ Position _currOffset; -+ Position _origin; // Base for all relative calculations -+ float _margin; -+ float _marginWt; -+ float _len[4]; -+ uint16 _seqClass; -+ uint16 _seqProxClass; -+ uint16 _seqOrder; -+ -+ //bool _scraping[4]; -+ -+}; // end of class ShiftCollider -+ -+inline -+ShiftCollider::ShiftCollider(GR_MAYBE_UNUSED json *dbgout) -+: _target(0), -+ _margin(0.0), -+ _marginWt(0.0), -+ _seqClass(0), -+ _seqProxClass(0), -+ _seqOrder(0) -+{ -+#if !defined GRAPHITE2_NTRACING -+ for (int i = 0; i < 4; ++i) -+ _ranges[i].setdebug(dbgout); -+#endif -+} -+ -+class KernCollider -+{ -+public: -+ KernCollider(json *dbg); -+ ~KernCollider() throw() { }; -+ bool initSlot(Segment *seg, Slot *aSlot, const Rect &constraint, float margin, -+ const Position &currShift, const Position &offsetPrev, int dir, -+ float ymin, float ymax, json * const dbgout); -+ bool mergeSlot(Segment *seg, Slot *slot, const Position &currShift, float currSpace, int dir, json * const dbgout); -+ Position resolve(Segment *seg, Slot *slot, int dir, float margin, json * const dbgout); -+ void shift(const Position &mv, int dir); -+ -+ CLASS_NEW_DELETE; -+ -+private: -+ Slot * _target; // the glyph to fix -+ Rect _limit; -+ float _margin; -+ Position _offsetPrev; // kern from a previous pass -+ Position _currShift; // NOT USED?? -+ float _miny; // y-coordinates offset by global slot position -+ float _maxy; -+ Vector<float> _edges; // edges of horizontal slices -+ float _sliceWidth; // width of each slice -+ float _mingap; -+ float _xbound; // max or min edge -+ -+#if !defined GRAPHITE2_NTRACING -+ // Debugging -+ Segment * _seg; -+ Vector<float> _nearEdges; // closest potential collision in each slice -+ Vector<Slot*> _slotNear; -+#endif -+}; // end of class KernCollider -+ -+ -+inline -+float sqr(float x) { -+ return x * x; -+} -+ -+inline -+KernCollider::KernCollider(GR_MAYBE_UNUSED json *dbg) -+: _target(0), -+ _margin(0.0f), -+ _miny(-1e38f), -+ _maxy(1e38f), -+ _sliceWidth(0.0f), -+ _mingap(0.0f), -+ _xbound(0.0) -+{ -+#if !defined GRAPHITE2_NTRACING -+ _seg = 0; -+#endif -+}; -+ -+}; // end of namespace graphite2 -+ -diff --git a/gfx/graphite2/src/inc/Compression.h b/gfx/graphite2/src/inc/Compression.h -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/inc/Compression.h -@@ -0,0 +1,103 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2015, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+ -+#pragma once -+ -+#include <cassert> -+#include <cstddef> -+#include <cstring> -+ -+namespace -+{ -+ -+#if defined(_MSC_VER) -+typedef unsigned __int8 u8; -+typedef unsigned __int16 u16; -+typedef unsigned __int32 u32; -+typedef unsigned __int64 u64; -+#else -+#include <stdint.h> -+typedef uint8_t u8; -+typedef uint16_t u16; -+typedef uint32_t u32; -+typedef uint64_t u64; -+#endif -+ -+ptrdiff_t const MINMATCH = 4; -+ -+template<int S> -+inline -+void unaligned_copy(void * d, void const * s) { -+ ::memcpy(d, s, S); -+} -+ -+inline -+size_t align(size_t p) { -+ return (p + sizeof(unsigned long)-1) & ~(sizeof(unsigned long)-1); -+} -+ -+inline -+u8 * safe_copy(u8 * d, u8 const * s, size_t n) { -+ while (n--) *d++ = *s++; -+ return d; -+} -+ -+inline -+u8 * overrun_copy(u8 * d, u8 const * s, size_t n) { -+ size_t const WS = sizeof(unsigned long); -+ u8 const * e = s + n; -+ do -+ { -+ unaligned_copy<WS>(d, s); -+ d += WS; -+ s += WS; -+ } -+ while (s < e); -+ d-=(s-e); -+ -+ return d; -+} -+ -+ -+inline -+u8 * fast_copy(u8 * d, u8 const * s, size_t n) { -+ size_t const WS = sizeof(unsigned long); -+ size_t wn = n/WS; -+ while (wn--) -+ { -+ unaligned_copy<WS>(d, s); -+ d += WS; -+ s += WS; -+ } -+ n &= WS-1; -+ return safe_copy(d, s, n); -+} -+ -+ -+} // end of anonymous namespace -+ -+ -diff --git a/gfx/graphite2/src/inc/Decompressor.h b/gfx/graphite2/src/inc/Decompressor.h -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/inc/Decompressor.h -@@ -0,0 +1,56 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2015, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+ -+#pragma once -+ -+#include <cstddef> -+ -+namespace lz4 -+{ -+ -+// decompress an LZ4 block -+// Parameters: -+// @in - Input buffer containing an LZ4 block. -+// @in_size - Size of the input LZ4 block in bytes. -+// @out - Output buffer to hold decompressed results. -+// @out_size - The size of the buffer pointed to by @out. -+// Invariants: -+// @in - This buffer must be at least 1 machine word in length, -+// regardless of the actual LZ4 block size. -+// @in_size - This must be at least 4 and must also be <= to the -+// allocated buffer @in. -+// @out - This must be bigger than the input buffer and at least -+// 13 bytes. -+// @out_size - Must always be big enough to hold the expected size. -+// Return: -+// -1 - Decompression failed. -+// size - Actual number of bytes decompressed. -+int decompress(void const *in, size_t in_size, void *out, size_t out_size); -+ -+} // end of namespace shrinker -+ -+ -diff --git a/gfx/graphite2/src/inc/Error.h b/gfx/graphite2/src/inc/Error.h ---- a/gfx/graphite2/src/inc/Error.h -+++ b/gfx/graphite2/src/inc/Error.h -@@ -106,22 +106,30 @@ enum errors { - E_BADRULECCODEPTR = 45, // The rule constraint code position does not align with where the forward reference says it should be - E_BADCCODELEN = 46, // Bad rule/pass constraint code length - E_BADACTIONCODEPTR = 47, // The action code position does not align with where the forward reference says it should be - E_MUTABLECCODE = 48, // Constraint code edits slots. It shouldn't. - E_BADSTATE = 49, // Bad state transition referencing an illegal state - E_BADRULEMAPPING = 50, // The structure of the rule mapping is bad - E_BADRANGE = 51, // Bad column range structure including a glyph in more than one column - E_BADRULENUM = 52, // A reference to a rule is out of range (too high) -+ E_BADACOLLISION = 53, // Bad Silf table collision attribute number (too high) -+ E_BADEMPTYPASS = 54, // Can't have empty passes (no rules) except for collision passes -+ E_BADSILFVERSION = 55, // The Silf table has a bad version (probably too high) -+ E_BADCOLLISIONPASS = 56, // Collision flags set on a non positioning pass -+ E_BADNUMCOLUMNS = 57, // Arbitrarily limit number of columns in fsm - // Code errors - E_CODEFAILURE = 60, // Base code error. The following subcodes must align with Machine::Code::status_t in Code.h -- E_CODEALLOC = 61, // Out of memory -- E_INVALIDOPCODE = 62, // Invalid op code -- E_UNIMPOPCODE = 63, // Unimplemented op code encountered -- E_OUTOFRANGECODE = 64, // Code argument out of range -- E_BADJUMPCODE = 65, // Code jumps past end of op codes -- E_CODEBADARGS = 66, // Code arguments exhausted -- E_CODENORETURN = 67, // Missing return type op code at end of code -- E_CODENESTEDCTXT = 68 // Nested context encountered in code -+ E_CODEALLOC = 61, // Out of memory -+ E_INVALIDOPCODE = 62, // Invalid op code -+ E_UNIMPOPCODE = 63, // Unimplemented op code encountered -+ E_OUTOFRANGECODE = 64, // Code argument out of range -+ E_BADJUMPCODE = 65, // Code jumps past end of op codes -+ E_CODEBADARGS = 66, // Code arguments exhausted -+ E_CODENORETURN = 67, // Missing return type op code at end of code -+ E_CODENESTEDCTXT = 68, // Nested context encountered in code -+// Compression errors -+ E_BADSCHEME = 69, -+ E_SHRINKERFAILED = 70, - }; - - } - -diff --git a/gfx/graphite2/src/inc/Face.h b/gfx/graphite2/src/inc/Face.h ---- a/gfx/graphite2/src/inc/Face.h -+++ b/gfx/graphite2/src/inc/Face.h -@@ -21,33 +21,34 @@ - - Alternatively, the contents of this file may be used under the terms of the - Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ - #pragma once - --#include <stdio.h> -+#include <cstdio> - - #include "graphite2/Font.h" - - #include "inc/Main.h" - #include "inc/FeatureMap.h" - #include "inc/TtfUtil.h" - #include "inc/Silf.h" - #include "inc/Error.h" - - namespace graphite2 { - - class Cmap; - class FileFace; - class GlyphCache; - class NameTable; - class json; -+class Font; - - - using TtfUtil::Tag; - - // These are the actual tags, as distinct from the consecutive IDs in TtfUtil.h - - class Face - { -@@ -165,47 +166,51 @@ json * Face::logger() const throw() - - - - class Face::Table - { - const Face * _f; - mutable const byte * _p; - uint32 _sz; -+ bool _compressed; -+ -+ Error decompress(); -+ -+ void releaseBuffers(); - - public: - Table() throw(); -- Table(const Face & face, const Tag n) throw(); -+ Table(const Face & face, const Tag n, uint32 version=0xffffffff) throw(); - Table(const Table & rhs) throw(); - ~Table() throw(); - - operator const byte * () const throw(); - - Table & operator = (const Table & rhs) throw(); - size_t size() const throw(); - }; - - inline - Face::Table::Table() throw() --: _f(0), _p(0), _sz(0) -+: _f(0), _p(0), _sz(0), _compressed(false) - { - } - - inline - Face::Table::Table(const Table & rhs) throw() --: _f(rhs._f), _p(rhs._p), _sz(rhs._sz) -+: _f(rhs._f), _p(rhs._p), _sz(rhs._sz), _compressed(rhs._compressed) - { - rhs._p = 0; - } - - inline - Face::Table::~Table() throw() - { -- if (_p && _f->m_ops.release_table) -- (*_f->m_ops.release_table)(_f->m_appFaceHandle, _p); -+ releaseBuffers(); - } - - inline - Face::Table::operator const byte * () const throw() - { - return _p; - } - -diff --git a/gfx/graphite2/src/inc/FeatureMap.h b/gfx/graphite2/src/inc/FeatureMap.h ---- a/gfx/graphite2/src/inc/FeatureMap.h -+++ b/gfx/graphite2/src/inc/FeatureMap.h -@@ -51,17 +51,17 @@ private: - }; - - class FeatureRef - { - typedef uint32 chunk_t; - static const uint8 SIZEOF_CHUNK = sizeof(chunk_t)*8; - - public: -- FeatureRef() : m_nameValues(0) {} -+ FeatureRef(); - FeatureRef(const Face & face, unsigned short & bits_offset, uint32 max_val, - uint32 name, uint16 uiName, uint16 flags, - FeatureSetting *settings, uint16 num_set) throw(); - ~FeatureRef() throw(); - - bool applyValToFeature(uint32 val, Features& pDest) const; //defined in GrFaceImp.h - void maskFeature(Features & pDest) const { - if (m_index < pDest.size()) //defensive -@@ -94,16 +94,26 @@ private: - byte m_bits, // how many bits to shift the value into place - m_index; // index into the array to find the ulong to mask - - private: //unimplemented - FeatureRef& operator=(const FeatureRef&); - }; - - -+inline -+FeatureRef::FeatureRef() -+: m_pFace(0), m_nameValues(0), -+ m_mask(0), m_max(0), m_id(0), -+ m_nameid(0), m_flags(0), m_numSet(0), -+ m_bits(0), m_index(0) -+{ -+} -+ -+ - class NameAndFeatureRef - { - public: - NameAndFeatureRef(uint32 name = 0) : m_name(name) , m_pFRef(NULL){} - NameAndFeatureRef(const FeatureRef* p/*not NULL*/) : m_name(p->getId()), m_pFRef(p) {} - - bool operator<(const NameAndFeatureRef& rhs) const //orders by m_name - { return m_name<rhs.m_name; } -@@ -112,35 +122,34 @@ class NameAndFeatureRef - - uint32 m_name; - const FeatureRef* m_pFRef; - }; - - class FeatureMap - { - public: -- FeatureMap() : m_numFeats(0), m_feats(NULL), m_pNamedFeats(NULL), -- m_defaultFeatures(NULL) {} -- ~FeatureMap() { delete [] m_feats; delete[] m_pNamedFeats; delete m_defaultFeatures; } -+ FeatureMap() : m_numFeats(0), m_feats(NULL), m_pNamedFeats(NULL) {} -+ ~FeatureMap() { delete [] m_feats; delete[] m_pNamedFeats; } - - bool readFeats(const Face & face); - const FeatureRef *findFeatureRef(uint32 name) const; - FeatureRef *feature(uint16 index) const { return m_feats + index; } - //GrFeatureRef *featureRef(byte index) { return index < m_numFeats ? m_feats + index : NULL; } - const FeatureRef *featureRef(byte index) const { return index < m_numFeats ? m_feats + index : NULL; } - FeatureVal* cloneFeatures(uint32 langname/*0 means default*/) const; //call destroy_Features when done. - uint16 numFeats() const { return m_numFeats; }; - CLASS_NEW_DELETE - private: - friend class SillMap; - uint16 m_numFeats; - - FeatureRef *m_feats; - NameAndFeatureRef* m_pNamedFeats; //owned -- FeatureVal* m_defaultFeatures; //owned -+ FeatureVal m_defaultFeatures; //owned - - private: //defensive on m_feats, m_pNamedFeats, and m_defaultFeatures - FeatureMap(const FeatureMap&); - FeatureMap& operator=(const FeatureMap&); - }; - - - class SillMap -diff --git a/gfx/graphite2/src/inc/FileFace.h b/gfx/graphite2/src/inc/FileFace.h ---- a/gfx/graphite2/src/inc/FileFace.h -+++ b/gfx/graphite2/src/inc/FileFace.h -@@ -27,17 +27,17 @@ of the License or (at your option) any l - #pragma once - - //#include "inc/FeatureMap.h" - //#include "inc/GlyphsCache.h" - //#include "inc/Silf.h" - - #ifndef GRAPHITE2_NFILEFACE - --#include <stdio.h> -+#include <cstdio> - #include <cassert> - - #include "graphite2/Font.h" - - #include "inc/Main.h" - #include "inc/TtfTypes.h" - #include "inc/TtfUtil.h" - -diff --git a/gfx/graphite2/src/inc/GlyphCache.h b/gfx/graphite2/src/inc/GlyphCache.h ---- a/gfx/graphite2/src/inc/GlyphCache.h -+++ b/gfx/graphite2/src/inc/GlyphCache.h -@@ -24,24 +24,73 @@ Mozilla Public License (http://mozilla.o - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ - #pragma once - - - #include "graphite2/Font.h" - #include "inc/Main.h" -+#include "inc/Position.h" -+#include "inc/GlyphFace.h" - - namespace graphite2 { - - class Face; - class FeatureVal; --class GlyphFace; - class Segment; - -+ -+struct SlantBox -+{ -+ static const SlantBox empty; -+ -+// SlantBox(float psi = 0., float pdi = 0., float psa = 0., float pda = 0.) : si(psi), di(pdi), sa(psa), da(pda) {}; -+ float width() const { return sa - si; } -+ float height() const { return da - di; } -+ float si; // min -+ float di; // min -+ float sa; // max -+ float da; // max -+}; -+ -+ -+struct BBox -+{ -+ BBox(float pxi = 0, float pyi = 0., float pxa = 0., float pya = 0.) : xi(pxi), yi(pyi), xa(pxa), ya(pya) {}; -+ float width() const { return xa - xi; } -+ float height() const { return ya - yi; } -+ float xi; // min -+ float yi; // min -+ float xa; // max -+ float ya; // max -+}; -+ -+ -+class GlyphBox -+{ -+ GlyphBox(const GlyphBox &); -+ GlyphBox & operator = (const GlyphBox &); -+ -+public: -+ GlyphBox(uint8 numsubs, unsigned short bitmap, Rect *slanted) : _num(numsubs), _bitmap(bitmap), _slant(*slanted) {}; -+ -+ void addSubBox(int subindex, int boundary, Rect *val) { _subs[subindex * 2 + boundary] = *val; } -+ Rect &subVal(int subindex, int boundary) { return _subs[subindex * 2 + boundary]; } -+ const Rect &slant() const { return _slant; } -+ uint8 num() const { return _num; } -+ const Rect *subs() const { return _subs; } -+ -+private: -+ uint8 _num; -+ unsigned short _bitmap; -+ Rect _slant; -+ Rect _subs[1]; -+}; -+ - class GlyphCache - { - class Loader; - - GlyphCache(const GlyphCache&); - GlyphCache& operator=(const GlyphCache&); - - public: -@@ -49,22 +98,34 @@ public: - ~GlyphCache(); - - unsigned short numGlyphs() const throw(); - unsigned short numAttrs() const throw(); - unsigned short unitsPerEm() const throw(); - - const GlyphFace *glyph(unsigned short glyphid) const; //result may be changed by subsequent call with a different glyphid - const GlyphFace *glyphSafe(unsigned short glyphid) const; -+ float getBoundingMetric(unsigned short glyphid, uint8 metric) const; -+ uint8 numSubBounds(unsigned short glyphid) const; -+ float getSubBoundingMetric(unsigned short glyphid, uint8 subindex, uint8 metric) const; -+ const Rect & slant(unsigned short glyphid) const { return _boxes[glyphid] ? _boxes[glyphid]->slant() : _empty_slant_box; } -+ const SlantBox & getBoundingSlantBox(unsigned short glyphid) const; -+ const BBox & getBoundingBBox(unsigned short glyphid) const; -+ const SlantBox & getSubBoundingSlantBox(unsigned short glyphid, uint8 subindex) const; -+ const BBox & getSubBoundingBBox(unsigned short glyphid, uint8 subindex) const; -+ bool check(unsigned short glyphid) const; -+ bool hasBoxes() const { return _boxes != 0; } - - CLASS_NEW_DELETE; - - private: -+ const Rect _empty_slant_box; - const Loader * _glyph_loader; - const GlyphFace * * _glyphs; -+ GlyphBox * * _boxes; - unsigned short _num_glyphs, - _num_attrs, - _upem; - }; - - inline - unsigned short GlyphCache::numGlyphs() const throw() - { -@@ -79,14 +140,84 @@ unsigned short GlyphCache::numAttrs() co - - inline - unsigned short GlyphCache::unitsPerEm() const throw() - { - return _upem; - } - - inline -+bool GlyphCache::check(unsigned short glyphid) const -+{ -+ return _boxes && glyphid < _num_glyphs; -+} -+ -+inline - const GlyphFace *GlyphCache::glyphSafe(unsigned short glyphid) const - { - return glyphid < _num_glyphs ? glyph(glyphid) : NULL; - } - -+inline -+float GlyphCache::getBoundingMetric(unsigned short glyphid, uint8 metric) const -+{ -+ if (glyphid >= _num_glyphs) return 0.; -+ switch (metric) { -+ case 0: return (float)(glyph(glyphid)->theBBox().bl.x); // x_min -+ case 1: return (float)(glyph(glyphid)->theBBox().bl.y); // y_min -+ case 2: return (float)(glyph(glyphid)->theBBox().tr.x); // x_max -+ case 3: return (float)(glyph(glyphid)->theBBox().tr.y); // y_max -+ case 4: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().bl.x : 0.f); // sum_min -+ case 5: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().bl.y : 0.f); // diff_min -+ case 6: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().tr.x : 0.f); // sum_max -+ case 7: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().tr.y : 0.f); // diff_max -+ default: return 0.; -+ } -+} -+ -+inline const SlantBox &GlyphCache::getBoundingSlantBox(unsigned short glyphid) const -+{ -+ return _boxes[glyphid] ? *(SlantBox *)(&(_boxes[glyphid]->slant())) : SlantBox::empty; -+} -+ -+inline const BBox &GlyphCache::getBoundingBBox(unsigned short glyphid) const -+{ -+ return *(BBox *)(&(glyph(glyphid)->theBBox())); -+} -+ -+inline -+float GlyphCache::getSubBoundingMetric(unsigned short glyphid, uint8 subindex, uint8 metric) const -+{ -+ GlyphBox *b = _boxes[glyphid]; -+ if (b == NULL || subindex >= b->num()) return 0; -+ -+ switch (metric) { -+ case 0: return b->subVal(subindex, 0).bl.x; -+ case 1: return b->subVal(subindex, 0).bl.y; -+ case 2: return b->subVal(subindex, 0).tr.x; -+ case 3: return b->subVal(subindex, 0).tr.y; -+ case 4: return b->subVal(subindex, 1).bl.x; -+ case 5: return b->subVal(subindex, 1).bl.y; -+ case 6: return b->subVal(subindex, 1).tr.x; -+ case 7: return b->subVal(subindex, 1).tr.y; -+ default: return 0.; -+ } -+} -+ -+inline const SlantBox &GlyphCache::getSubBoundingSlantBox(unsigned short glyphid, uint8 subindex) const -+{ -+ GlyphBox *b = _boxes[glyphid]; -+ return *(SlantBox *)(b->subs() + 2 * subindex + 1); -+} -+ -+inline const BBox &GlyphCache::getSubBoundingBBox(unsigned short glyphid, uint8 subindex) const -+{ -+ GlyphBox *b = _boxes[glyphid]; -+ return *(BBox *)(b->subs() + 2 * subindex); -+} -+ -+inline -+uint8 GlyphCache::numSubBounds(unsigned short glyphid) const -+{ -+ return _boxes[glyphid] ? _boxes[glyphid]->num() : 0; -+} -+ - } // namespace graphite2 -diff --git a/gfx/graphite2/src/inc/Intervals.h b/gfx/graphite2/src/inc/Intervals.h -new file mode 100644 ---- /dev/null -+++ b/gfx/graphite2/src/inc/Intervals.h -@@ -0,0 +1,234 @@ -+/* GRAPHITE2 LICENSING -+ -+ Copyright 2010, SIL International -+ All rights reserved. -+ -+ This library is free software; you can redistribute it and/or modify -+ it under the terms of the GNU Lesser General Public License as published -+ by the Free Software Foundation; either version 2.1 of License, or -+ (at your option) any later version. -+ -+ This program is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should also have received a copy of the GNU Lesser General Public -+ License along with this library in the file named "LICENSE". -+ If not, write to the Free Software Foundation, 51 Franklin Street, -+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the -+ internet at http://www.fsf.org/licenses/lgpl.html. -+ -+Alternatively, the contents of this file may be used under the terms of the -+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -+License, as published by the Free Software Foundation, either version 2 -+of the License or (at your option) any later version. -+*/ -+#pragma once -+ -+#include <utility> -+ -+#include "inc/Main.h" -+#include "inc/List.h" -+#include "inc/json.h" -+#include "inc/Position.h" -+ -+// An IntervalSet represents the possible movement of a given glyph in a given direction -+// (horizontally, vertically, or diagonally). -+// A vector is needed to represent disjoint ranges, eg, -300..-150, 20..200, 500..750. -+// Each pair represents the min/max of a sub-range. -+ -+namespace graphite2 { -+ -+class Segment; -+ -+enum zones_t {SD, XY}; -+ -+class Zones -+{ -+ struct Exclusion -+ { -+ template<zones_t O> -+ static Exclusion weighted(float xmin, float xmax, float f, float a0, -+ float m, float xi, float ai, float c, bool nega); -+ -+ float x, // x position -+ xm, // xmax position -+ c, // constant + sum(MiXi^2) -+ sm, // sum(Mi) -+ smx; // sum(MiXi) -+ bool open; -+ -+ Exclusion(float x, float w, float smi, float smxi, float c); -+ Exclusion & operator += (Exclusion const & rhs); -+ uint8 outcode(float p) const; -+ -+ Exclusion split_at(float p); -+ void left_trim(float p); -+ -+ bool track_cost(float & cost, float & x, float origin) const; -+ -+ private: -+ float test_position(float origin) const; -+ float cost(float x) const; -+ }; -+ -+ typedef Vector<Exclusion> exclusions; -+ -+ typedef exclusions::iterator iterator; -+ typedef Exclusion * pointer; -+ typedef Exclusion & reference; -+ typedef std::reverse_iterator<iterator> reverse_iterator; -+ -+public: -+ typedef exclusions::const_iterator const_iterator; -+ typedef Exclusion const * const_pointer; -+ typedef Exclusion const & const_reference; -+ typedef std::reverse_iterator<const_iterator> const_reverse_iterator; -+ -+#if !defined GRAPHITE2_NTRACING -+ struct Debug -+ { -+ Exclusion _excl; -+ bool _isdel; -+ Vector<void *> _env; -+ -+ Debug(Exclusion *e, bool isdel, json *dbg) : _excl(*e), _isdel(isdel), _env(dbg->getenvs()) { }; -+ }; -+ -+ typedef Vector<Debug> debugs; -+ typedef debugs::const_iterator idebugs; -+ void addDebug(Exclusion *e); -+ void removeDebug(float pos, float posm); -+ void setdebug(json *dbgout) { _dbg = dbgout; } -+ idebugs dbgs_begin() const { return _dbgs.begin(); } -+ idebugs dbgs_end() const { return _dbgs.end(); } -+ void jsonDbgOut(Segment *seg) const; -+ Position position() const { return Position(_pos, _posm); } -+#endif -+ -+ Zones(); -+ template<zones_t O> -+ void initialise(float xmin, float xmax, float margin_len, float margin_weight, float ao); -+ -+ void exclude(float xmin, float xmax); -+ void exclude_with_margins(float xmin, float xmax, int axis); -+ -+ template<zones_t O> -+ void weighted(float xmin, float xmax, float f, float a0, float mi, float xi, float ai, float c, bool nega); -+ void weightedAxis(int axis, float xmin, float xmax, float f, float a0, float mi, float xi, float ai, float c, bool nega); -+ -+ float closest( float origin, float &cost) const; -+ -+ const_iterator begin() const { return _exclusions.begin(); } -+ const_iterator end() const { return _exclusions.end(); } -+ -+private: -+ exclusions _exclusions; -+#if !defined GRAPHITE2_NTRACING -+ json * _dbg; -+ debugs _dbgs; -+#endif -+ float _margin_len, -+ _margin_weight, -+ _pos, -+ _posm; -+ -+ void insert(Exclusion e); -+ void remove(float x, float xm); -+ const_iterator find_exclusion_under(float x) const; -+}; -+ -+ -+inline -+Zones::Zones() -+: _margin_len(0), _margin_weight(0), _pos(0), _posm(0) -+{ -+#if !defined GRAPHITE2_NTRACING -+ _dbg = 0; -+#endif -+ _exclusions.reserve(8); -+} -+ -+inline -+Zones::Exclusion::Exclusion(float x_, float xm_, float smi, float smxi, float c_) -+: x(x_), xm(xm_), c(c_), sm(smi), smx(smxi), open(false) -+{ } -+ -+template<zones_t O> -+inline -+void Zones::initialise(float xmin, float xmax, float margin_len, -+ float margin_weight, float a0) -+{ -+ _margin_len = margin_len; -+ _margin_weight = margin_weight; -+ _pos = xmin; -+ _posm = xmax; -+ _exclusions.clear(); -+ _exclusions.push_back(Exclusion::weighted<O>(xmin, xmax, 1, a0, 0, 0, 0, 0, false)); -+ _exclusions.front().open = true; -+#if !defined GRAPHITE2_NTRACING -+ _dbgs.clear(); -+#endif -+} -+ -+inline -+void Zones::exclude(float xmin, float xmax) { -+ remove(xmin, xmax); -+} -+ -+template<zones_t O> -+inline -+void Zones::weighted(float xmin, float xmax, float f, float a0, -+ float m, float xi, float ai, float c, bool nega) { -+ insert(Exclusion::weighted<O>(xmin, xmax, f, a0, m, xi, ai, c, nega)); -+} -+ -+inline -+void Zones::weightedAxis(int axis, float xmin, float xmax, float f, float a0, -+ float m, float xi, float ai, float c, bool nega) { -+ if (axis < 2) -+ weighted<XY>(xmin, xmax, f, a0, m, xi, ai, c, nega); -+ else -+ weighted<SD>(xmin, xmax, f, a0, m, xi, ai, c, nega); -+} -+ -+#if !defined GRAPHITE2_NTRACING -+inline -+void Zones::addDebug(Exclusion *e) { -+ if (_dbg) -+ _dbgs.push_back(Debug(e, false, _dbg)); -+} -+ -+inline -+void Zones::removeDebug(float pos, float posm) { -+ if (_dbg) -+ { -+ Exclusion e(pos, posm, 0, 0, 0); -+ _dbgs.push_back(Debug(&e, true, _dbg)); -+ } -+} -+#endif -+ -+template<> -+inline -+Zones::Exclusion Zones::Exclusion::weighted<XY>(float xmin, float xmax, float f, float a0, -+ float m, float xi, GR_MAYBE_UNUSED float ai, float c, GR_MAYBE_UNUSED bool nega) { -+ return Exclusion(xmin, xmax, -+ m + f, -+ m * xi, -+ m * xi * xi + f * a0 * a0 + c); -+} -+ -+template<> -+inline -+Zones::Exclusion Zones::Exclusion::weighted<SD>(float xmin, float xmax, float f, float a0, -+ float m, float xi, float ai,float c, bool nega) { -+ float xia = nega ? xi - ai : xi + ai; -+ return Exclusion(xmin, xmax, -+ 0.25f * (m + 2.f * f), -+ 0.25f * m * xia, -+ 0.25f * (m * xia * xia + 2.f * f * a0 * a0) + c); -+} -+ -+} // end of namespace graphite2 -diff --git a/gfx/graphite2/src/inc/List.h b/gfx/graphite2/src/inc/List.h ---- a/gfx/graphite2/src/inc/List.h -+++ b/gfx/graphite2/src/inc/List.h -@@ -65,29 +65,30 @@ public: - iterator end() { return m_last; } - const_iterator end() const { return m_last; } - - bool empty() const { return m_first == m_last; } - size_t size() const { return m_last - m_first; } - size_t capacity() const{ return m_end - m_first; } - - void reserve(size_t n); -+ void resize(size_t n, const T & v = T()); - - reference front() { assert(size() > 0); return *begin(); } - const_reference front() const { assert(size() > 0); return *begin(); } - reference back() { assert(size() > 0); return *(end()-1); } - const_reference back() const { assert(size() > 0); return *(end()-1); } - - Vector<T> & operator = (const Vector<T> & rhs) { assign(rhs.begin(), rhs.end()); return *this; } - reference operator [] (size_t n) { assert(size() > n); return m_first[n]; } - const_reference operator [] (size_t n) const { assert(size() > n); return m_first[n]; } - - void assign(size_t n, const T& u) { clear(); insert(begin(), n, u); } - void assign(const_iterator first, const_iterator last) { clear(); insert(begin(), first, last); } -- iterator insert(iterator p, const T & x) { p = _insert_default(p, 1); *p = x; return p; } -+ iterator insert(iterator p, const T & x) { p = _insert_default(p, 1); new (p) T(x); return p; } - void insert(iterator p, size_t n, const T & x); - void insert(iterator p, const_iterator first, const_iterator last); - void pop_back() { assert(size() > 0); --m_last; } - void push_back(const T &v) { if (m_last == m_end) reserve(size()+1); new (m_last++) T(v); } - - void clear() { erase(begin(), end()); } - iterator erase(iterator p) { return erase(p, p+1); } - iterator erase(iterator first, iterator last); -@@ -99,28 +100,37 @@ private: - template <typename T> - inline - void Vector<T>::reserve(size_t n) - { - if (n > capacity()) - { - const ptrdiff_t sz = size(); - m_first = static_cast<T*>(realloc(m_first, n*sizeof(T))); -+ if (!m_first) std::abort(); - m_last = m_first + sz; - m_end = m_first + n; - } - } - -+template <typename T> -+inline -+void Vector<T>::resize(size_t n, const T & v) { -+ const ptrdiff_t d = n-size(); -+ if (d < 0) erase(end()+d, end()); -+ else if (d > 0) insert(end(), d, v); -+} -+ - template<typename T> - inline - typename Vector<T>::iterator Vector<T>::_insert_default(iterator p, size_t n) - { - assert(begin() <= p && p <= end()); - const ptrdiff_t i = p - begin(); -- reserve((size() + n + 7) >> 3 << 3); -+ reserve(((size() + n + 7) >> 3) << 3); - p = begin() + i; - // Move tail if there is one - if (p != end()) memmove(p + n, p, distance(p,end())*sizeof(T)); - m_last += n; - return p; - } - - template<typename T> -diff --git a/gfx/graphite2/src/inc/Machine.h b/gfx/graphite2/src/inc/Machine.h ---- a/gfx/graphite2/src/inc/Machine.h -+++ b/gfx/graphite2/src/inc/Machine.h -@@ -105,17 +105,19 @@ enum opcode { - - PUSH_IGLYPH_ATTR, // not implemented - - POP_RET, RET_ZERO, RET_TRUE, - IATTR_SET, IATTR_ADD, IATTR_SUB, - PUSH_PROC_STATE, PUSH_VERSION, - PUT_SUBS, PUT_SUBS2, PUT_SUBS3, - PUT_GLYPH, PUSH_GLYPH_ATTR, PUSH_ATT_TO_GLYPH_ATTR, -- MAX_OPCODE, -+ BITOR, BITAND, BITNOT, -+ BITSET, SET_FEAT, -+ MAX_OPCODE, - // private opcodes for internal use only, comes after all other on disk opcodes - TEMP_COPY = MAX_OPCODE - }; - - struct opcode_t - { - instr impl[2]; - uint8 param_sz; -@@ -143,17 +145,17 @@ public: - - Machine(SlotMap &) throw(); - static const opcode_t * getOpcodeTable() throw(); - - CLASS_NEW_DELETE; - - SlotMap & slotMap() const throw(); - status_t status() const throw(); -- operator bool () const throw(); -+// operator bool () const throw(); - - private: - void check_final_stack(const stack_t * const sp); - stack_t run(const instr * program, const byte * data, - slotref * & map) HOT; - - SlotMap & _map; - stack_t _stack[STACK_MAX + 2*STACK_GUARD]; -diff --git a/gfx/graphite2/src/inc/Main.h b/gfx/graphite2/src/inc/Main.h ---- a/gfx/graphite2/src/inc/Main.h -+++ b/gfx/graphite2/src/inc/Main.h -@@ -80,25 +80,25 @@ struct telemetry {}; - // typesafe wrapper around malloc for simple types - // use free(pointer) to deallocate - - template <typename T> T * gralloc(size_t n) - { - #ifdef GRAPHITE2_TELEMETRY - telemetry::count_bytes(sizeof(T) * n); - #endif -- return reinterpret_cast<T*>(malloc(sizeof(T) * n)); -+ return static_cast<T*>(malloc(sizeof(T) * n)); - } - - template <typename T> T * grzeroalloc(size_t n) - { - #ifdef GRAPHITE2_TELEMETRY - telemetry::count_bytes(sizeof(T) * n); - #endif -- return reinterpret_cast<T*>(calloc(n, sizeof(T))); -+ return static_cast<T*>(calloc(n, sizeof(T))); - } - - template <typename T> - inline T min(const T a, const T b) - { - return a < b ? a : b; - } - -@@ -115,13 +115,32 @@ inline T max(const T a, const T b) - void * operator new (size_t, void * p) throw() { return p; } \ - void * operator new[] (size_t size) {return gralloc<byte>(size);} \ - void * operator new[] (size_t, void * p) throw() { return p; } \ - void operator delete (void * p) throw() { free(p);} \ - void operator delete (void *, void *) throw() {} \ - void operator delete[] (void * p)throw() { free(p); } \ - void operator delete[] (void *, void *) throw() {} - --#ifdef __GNUC__ -+#if defined(__GNUC__) || defined(__clang__) - #define GR_MAYBE_UNUSED __attribute__((unused)) - #else - #define GR_MAYBE_UNUSED - #endif -+ -+#if defined(__clang__) && __cplusplus >= 201103L -+ /* clang's fallthrough annotations are only available starting in C++11. */ -+ #define GR_FALLTHROUGH [[clang::fallthrough]] -+#elif defined(_MSC_VER) -+ /* -+ * MSVC's __fallthrough annotations are checked by /analyze (Code Analysis): -+ * https://msdn.microsoft.com/en-us/library/ms235402%28VS.80%29.aspx -+ */ -+ #include <sal.h> -+ #define GR_FALLTHROUGH __fallthrough -+#else -+ #define GR_FALLTHROUGH /* fallthrough */ -+#endif -+ -+#ifdef _MSC_VER -+#pragma warning(disable: 4800) -+#pragma warning(disable: 4355) -+#endif -diff --git a/gfx/graphite2/src/inc/Pass.h b/gfx/graphite2/src/inc/Pass.h ---- a/gfx/graphite2/src/inc/Pass.h -+++ b/gfx/graphite2/src/inc/Pass.h -@@ -34,65 +34,85 @@ namespace graphite2 { - class Segment; - class Face; - class Silf; - struct Rule; - struct RuleEntry; - struct State; - class FiniteStateMachine; - class Error; -+class ShiftCollider; -+class KernCollider; -+class json; -+ -+enum passtype; - - class Pass - { - public: - Pass(); - ~Pass(); - -- bool readPass(const byte * pPass, size_t pass_length, size_t subtable_base, Face & face, Error &e); -- void runGraphite(vm::Machine & m, FiniteStateMachine & fsm) const; -+ bool readPass(const byte * pPass, size_t pass_length, size_t subtable_base, Face & face, -+ enum passtype pt, uint32 version, Error &e); -+ bool runGraphite(vm::Machine & m, FiniteStateMachine & fsm, bool reverse) const; - void init(Silf *silf) { m_silf = silf; } -- byte spaceContextuals() const { return (m_flags & 0x0E) >> 1; } -+ byte collisionLoops() const { return m_numCollRuns; } -+ bool reverseDir() const { return m_isReverseDir; } - - CLASS_NEW_DELETE - private: - void findNDoRule(Slot* & iSlot, vm::Machine &, FiniteStateMachine& fsm) const; - int doAction(const vm::Machine::Code* codeptr, Slot * & slot_out, vm::Machine &) const; - bool testPassConstraint(vm::Machine & m) const; - bool testConstraint(const Rule & r, vm::Machine &) const; - bool readRules(const byte * rule_map, const size_t num_entries, - const byte *precontext, const uint16 * sort_key, - const uint16 * o_constraint, const byte *constraint_data, - const uint16 * o_action, const byte * action_data, -- Face &, Error &e); -+ Face &, enum passtype pt, Error &e); - bool readStates(const byte * starts, const byte * states, const byte * o_rule_map, Face &, Error &e); - bool readRanges(const byte * ranges, size_t num_ranges, Error &e); - uint16 glyphToCol(const uint16 gid) const; - bool runFSM(FiniteStateMachine & fsm, Slot * slot) const; - void dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const; -- void dumpRuleEventOutput(const FiniteStateMachine & fsm, const Rule & r, Slot * os) const; -+ void dumpRuleEventOutput(const FiniteStateMachine & fsm, vm::Machine & m, const Rule & r, Slot * os) const; - void adjustSlot(int delta, Slot * & slot_out, SlotMap &) const; -- const Silf* m_silf; -- uint16 * m_cols; -- Rule * m_rules; // rules -- RuleEntry * m_ruleMap; -- uint16 * m_startStates; // prectxt length -- uint16 * m_transitions; -- State * m_states; -- -- byte m_flags; -+ bool collisionShift(Segment *seg, int dir, json * const dbgout) const; -+ bool collisionKern(Segment *seg, int dir, json * const dbgout) const; -+ bool collisionFinish(Segment *seg, GR_MAYBE_UNUSED json * const dbgout) const; -+ bool resolveCollisions(Segment *seg, Slot *slot, Slot *start, ShiftCollider &coll, bool isRev, -+ int dir, bool &moved, bool &hasCol, json * const dbgout) const; -+ float resolveKern(Segment *seg, Slot *slot, Slot *start, KernCollider &coll, int dir, -+ float &ymin, float &ymax, json *const dbgout) const; -+ -+ const Silf * m_silf; -+ uint16 * m_cols; -+ Rule * m_rules; // rules -+ RuleEntry * m_ruleMap; -+ uint16 * m_startStates; // prectxt length -+ uint16 * m_transitions; -+ State * m_states; -+ vm::Machine::Code * m_codes; -+ byte * m_progs; -+ -+ byte m_numCollRuns; -+ byte m_kernColls; - byte m_iMaxLoop; - uint16 m_numGlyphs; - uint16 m_numRules; - uint16 m_numStates; - uint16 m_numTransition; - uint16 m_numSuccess; - uint16 m_successStart; - uint16 m_numColumns; - byte m_minPreCtxt; - byte m_maxPreCtxt; -+ byte m_colThreshold; -+ bool m_isReverseDir; - vm::Machine::Code m_cPConstraint; - - private: //defensive - Pass(const Pass&); - Pass& operator=(const Pass&); - }; - - } // namespace graphite2 -diff --git a/gfx/graphite2/src/inc/Position.h b/gfx/graphite2/src/inc/Position.h ---- a/gfx/graphite2/src/inc/Position.h -+++ b/gfx/graphite2/src/inc/Position.h -@@ -45,15 +45,24 @@ public: - - class Rect - { - public : - Rect() {} - Rect(const Position& botLeft, const Position& topRight): bl(botLeft), tr(topRight) {} - Rect widen(const Rect& other) { return Rect(Position(bl.x > other.bl.x ? other.bl.x : bl.x, bl.y > other.bl.y ? other.bl.y : bl.y), Position(tr.x > other.tr.x ? tr.x : other.tr.x, tr.y > other.tr.y ? tr.y : other.tr.y)); } - Rect operator + (const Position &a) const { return Rect(Position(bl.x + a.x, bl.y + a.y), Position(tr.x + a.x, tr.y + a.y)); } -+ Rect operator - (const Position &a) const { return Rect(Position(bl.x - a.x, bl.y - a.y), Position(tr.x - a.x, tr.y - a.y)); } - Rect operator * (float m) const { return Rect(Position(bl.x, bl.y) * m, Position(tr.x, tr.y) * m); } -+ float width() const { return tr.x - bl.x; } -+ float height() const { return tr.y - bl.y; } -+ -+ bool hitTest(Rect &other); -+ -+ // returns Position(overlapx, overlapy) where overlap<0 if overlapping else positive) -+ Position overlap(Position &offset, Rect &other, Position &otherOffset); -+ //Position constrainedAvoid(Position &offset, Rect &box, Rect &sdbox, Position &other, Rect &obox, Rect &osdbox); - - Position bl; - Position tr; - }; - - } // namespace graphite2 -diff --git a/gfx/graphite2/src/inc/Rule.h b/gfx/graphite2/src/inc/Rule.h ---- a/gfx/graphite2/src/inc/Rule.h -+++ b/gfx/graphite2/src/inc/Rule.h -@@ -36,30 +36,36 @@ struct Rule { - const vm::Machine::Code * constraint, - * action; - unsigned short sort; - byte preContext; - #ifndef NDEBUG - uint16 rule_idx; - #endif - -- Rule() : constraint(0), action(0), sort(0), preContext(0) {} -- ~Rule(); -+ Rule(); -+ ~Rule() {} - - CLASS_NEW_DELETE; - - private: - Rule(const Rule &); - Rule & operator = (const Rule &); - }; - --inline Rule::~Rule() -+inline -+Rule::Rule() -+: constraint(0), -+ action(0), -+ sort(0), -+ preContext(0) - { -- delete constraint; -- delete action; -+#ifndef NDEBUG -+ rule_idx = 0; -+#endif - } - - - struct RuleEntry - { - const Rule * rule; - - inline -@@ -91,40 +97,43 @@ bool State::empty() const - return rules_end == rules; - } - - - class SlotMap - { - public: - enum {MAX_SLOTS=64}; -- SlotMap(Segment & seg); -+ SlotMap(Segment & seg, uint8 direction); - - Slot * * begin(); - Slot * * end(); - size_t size() const; - unsigned short context() const; - void reset(Slot &, unsigned short); - - Slot * const & operator[](int n) const; - Slot * & operator [] (int); - void pushSlot(Slot * const slot); -- void collectGarbage(); -+ void collectGarbage(Slot *& aSlot); - - Slot * highwater() { return m_highwater; } - void highwater(Slot *s) { m_highwater = s; m_highpassed = false; } - bool highpassed() const { return m_highpassed; } - void highpassed(bool v) { m_highpassed = v; } - -+ uint8 dir() const { return m_dir; } -+ - Segment & segment; - private: - Slot * m_slot_map[MAX_SLOTS+1]; - unsigned short m_size; - unsigned short m_precontext; - Slot * m_highwater; -+ uint8 m_dir; - bool m_highpassed; - }; - - - class FiniteStateMachine - { - public: - enum {MAX_RULES=128}; -@@ -228,18 +237,18 @@ void FiniteStateMachine::Rules::accumula - return; - } - } - while (rre != rrend && out != lrend) { *out++ = *rre++; } - m_end = out; - } - - inline --SlotMap::SlotMap(Segment & seg) --: segment(seg), m_size(0), m_precontext(0), m_highwater(0), m_highpassed(false) -+SlotMap::SlotMap(Segment & seg, uint8 direction) -+: segment(seg), m_size(0), m_precontext(0), m_highwater(0), m_dir(direction), m_highpassed(false) - { - m_slot_map[0] = 0; - } - - inline - Slot * * SlotMap::begin() - { - return &m_slot_map[1]; // allow map to go 1 before slot_map when inserting -diff --git a/gfx/graphite2/src/inc/SegCache.h b/gfx/graphite2/src/inc/SegCache.h ---- a/gfx/graphite2/src/inc/SegCache.h -+++ b/gfx/graphite2/src/inc/SegCache.h -@@ -258,17 +258,17 @@ public: - - CLASS_NEW_DELETE - private: - void freeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level); - void purgeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level, - unsigned long long minAccessCount, unsigned long long oldAccessTime); - - uint16 m_prefixLength; -- uint16 m_maxCachedSegLength; -+// uint16 m_maxCachedSegLength; - size_t m_segmentCount; - SegCachePrefixArray m_prefixes; - Features m_features; - mutable unsigned long long m_totalAccessCount; - mutable unsigned long long m_totalMisses; - float m_purgeFactor; - }; - -diff --git a/gfx/graphite2/src/inc/Segment.h b/gfx/graphite2/src/inc/Segment.h ---- a/gfx/graphite2/src/inc/Segment.h -+++ b/gfx/graphite2/src/inc/Segment.h -@@ -30,29 +30,28 @@ of the License or (at your option) any l - - #include <cassert> - - #include "inc/CharInfo.h" - #include "inc/Face.h" - #include "inc/FeatureVal.h" - #include "inc/GlyphCache.h" - #include "inc/GlyphFace.h" --//#include "inc/Silf.h" - #include "inc/Slot.h" - #include "inc/Position.h" - #include "inc/List.h" --#include "inc/Bidi.h" -+#include "inc/Collider.h" - - #define MAX_SEG_GROWTH_FACTOR 256 - - namespace graphite2 { - - typedef Vector<Features> FeatureList; - typedef Vector<Slot *> SlotRope; --typedef Vector<int16 *> AttributeRope; -+typedef Vector<int16 *> AttributeRope; - typedef Vector<SlotJustify *> JustifyRope; - - #ifndef GRAPHITE2_NSEGCACHE - class SegmentScopeState; - #endif - class Font; - class Segment; - class Silf; -@@ -81,119 +80,151 @@ private: - - class Segment - { - // Prevent copying of any kind. - Segment(const Segment&); - Segment& operator=(const Segment&); - - public: -+ -+ enum { -+ SEG_INITCOLLISIONS = 1, -+ SEG_HASCOLLISIONS = 2 -+ }; -+ - unsigned int slotCount() const { return m_numGlyphs; } //one slot per glyph - void extendLength(int num) { m_numGlyphs += num; } - Position advance() const { return m_advance; } - bool runGraphite() { if (m_silf) return m_face->runGraphite(this, m_silf); else return true;}; - void chooseSilf(uint32 script) { m_silf = m_face->chooseSilf(script); } - const Silf *silf() const { return m_silf; } - unsigned int charInfoCount() const { return m_numCharinfo; } - const CharInfo *charinfo(unsigned int index) const { return index < m_numCharinfo ? m_charinfo + index : NULL; } - CharInfo *charinfo(unsigned int index) { return index < m_numCharinfo ? m_charinfo + index : NULL; } -- int8 dir() const { return m_dir; } - - Segment(unsigned int numchars, const Face* face, uint32 script, int dir); - ~Segment(); - #ifndef GRAPHITE2_NSEGCACHE - SegmentScopeState setScope(Slot * firstSlot, Slot * lastSlot, size_t subLength); - void removeScope(SegmentScopeState & state); - void append(const Segment &other); - void splice(size_t offset, size_t length, Slot * const startSlot, - Slot * endSlot, const Slot * srcSlot, - const size_t numGlyphs); - #endif -+ uint8 flags() const { return m_flags; } -+ void flags(uint8 f) { m_flags = f; } - Slot *first() { return m_first; } - void first(Slot *p) { m_first = p; } - Slot *last() { return m_last; } - void last(Slot *p) { m_last = p; } - void appendSlot(int i, int cid, int gid, int fid, size_t coffset); - Slot *newSlot(); - void freeSlot(Slot *); - SlotJustify *newJustify(); - void freeJustify(SlotJustify *aJustify); -- Position positionSlots(const Font *font, Slot *first=0, Slot *last=0); -+ Position positionSlots(const Font *font=0, Slot *first=0, Slot *last=0, bool isRtl = false, bool isFinal = true); - void associateChars(int offset, int num); - void linkClusters(Slot *first, Slot *last); - uint16 getClassGlyph(uint16 cid, uint16 offset) const { return m_silf->getClassGlyph(cid, offset); } - uint16 findClassIndex(uint16 cid, uint16 gid) const { return m_silf->findClassIndex(cid, gid); } - int addFeatures(const Features& feats) { m_feats.push_back(feats); return m_feats.size() - 1; } - uint32 getFeature(int index, uint8 findex) const { const FeatureRef* pFR=m_face->theSill().theFeatureMap().featureRef(findex); if (!pFR) return 0; else return pFR->getFeatureVal(m_feats[index]); } -+ void setFeature(int index, uint8 findex, uint32 val) { -+ const FeatureRef* pFR=m_face->theSill().theFeatureMap().featureRef(findex); -+ if (pFR) -+ { -+ if (val > pFR->maxVal()) val = pFR->maxVal(); -+ pFR->applyValToFeature(val, m_feats[index]); -+ } } -+ int8 dir() const { return m_dir; } - void dir(int8 val) { m_dir = val; } -+ bool currdir() const { return ((m_dir >> 6) ^ m_dir) & 1; } - unsigned int passBits() const { return m_passBits; } - void mergePassBits(const unsigned int val) { m_passBits &= val; } - int16 glyphAttr(uint16 gid, uint16 gattr) const { const GlyphFace * p = m_face->glyphs().glyphSafe(gid); return p ? p->attrs()[gattr] : 0; } -- int32 getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel) const; -+ int32 getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel, bool rtl) const; - float glyphAdvance(uint16 gid) const { return m_face->glyphs().glyph(gid)->theAdvance().x; } - const Rect &theGlyphBBoxTemporary(uint16 gid) const { return m_face->glyphs().glyph(gid)->theBBox(); } //warning value may become invalid when another glyph is accessed - Slot *findRoot(Slot *is) const { return is->attachedTo() ? findRoot(is->attachedTo()) : is; } - int numAttrs() const { return m_silf->numUser(); } - int defaultOriginal() const { return m_defaultOriginal; } - const Face * getFace() const { return m_face; } - const Features & getFeatures(unsigned int /*charIndex*/) { assert(m_feats.size() == 1); return m_feats[0]; } -- void bidiPass(uint8 aBidi, int paradir, uint8 aMirror); -+ void bidiPass(int paradir, uint8 aMirror); -+ int8 getSlotBidiClass(Slot *s) const; -+ void doMirror(uint16 aMirror); - Slot *addLineEnd(Slot *nSlot); - void delLineEnd(Slot *s); - bool hasJustification() const { return m_justifies.size() != 0; } -+ void reverseSlots(); - - bool isWhitespace(const int cid) const; -- -+ bool hasCollisionInfo() const { return (m_flags & SEG_HASCOLLISIONS); } -+ SlotCollision *collisionInfo(const Slot *s) const { return m_collisions ? m_collisions + s->index() : 0; } - CLASS_NEW_DELETE - - public: //only used by: GrSegment* makeAndInitialize(const GrFont *font, const GrFace *face, uint32 script, const FeaturesHandle& pFeats/*must not be IsNull*/, encform enc, const void* pStart, size_t nChars, int dir); - bool read_text(const Face *face, const Features* pFeats/*must not be NULL*/, gr_encform enc, const void*pStart, size_t nChars); -- void prepare_pos(const Font *font); -- void finalise(const Font *font); -+ void finalise(const Font *font, bool reverse=false); - float justify(Slot *pSlot, const Font *font, float width, enum justFlags flags, Slot *pFirst, Slot *pLast); -+ bool initCollisions(); - - private: - Position m_advance; // whole segment advance - SlotRope m_slots; // Vector of slot buffers - AttributeRope m_userAttrs; // Vector of userAttrs buffers - JustifyRope m_justifies; // Slot justification info buffers - FeatureList m_feats; // feature settings referenced by charinfos in this segment - Slot * m_freeSlots; // linked list of free slots - SlotJustify * m_freeJustifies; // Slot justification blocks free list - CharInfo * m_charinfo; // character info, one per input character -+ SlotCollision * m_collisions; - const Face * m_face; // GrFace - const Silf * m_silf; - Slot * m_first; // first slot in segment - Slot * m_last; // last slot in segment - unsigned int m_bufSize, // how big a buffer to create when need more slots - m_numGlyphs, - m_numCharinfo, // size of the array and number of input characters - m_passBits; // if bit set then skip pass - int m_defaultOriginal; // number of whitespace chars in the string - int8 m_dir; -+ uint8 m_flags; // General purpose flags - }; - -- -+inline -+int8 Segment::getSlotBidiClass(Slot *s) const -+{ -+ int8 res = s->getBidiClass(); -+ if (res != -1) return res; -+ res = int8(glyphAttr(s->gid(), m_silf->aBidi())); -+ s->setBidiClass(res); -+ return res; -+} - - inline --void Segment::finalise(const Font *font) -+void Segment::finalise(const Font *font, bool reverse) - { - if (!m_first) return; - -- m_advance = positionSlots(font); -- associateChars(0, m_numCharinfo); -+ m_advance = positionSlots(font, m_first, m_last, m_silf->dir(), true); -+ //associateChars(0, m_numCharinfo); -+ if (reverse && currdir() != (m_dir & 1)) -+ reverseSlots(); - linkClusters(m_first, m_last); - } - - inline --int32 Segment::getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel) const { -+int32 Segment::getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel, bool rtl) const { - if (attrLevel > 0) - { - Slot *is = findRoot(iSlot); -- return is->clusterMetric(this, metric, attrLevel); -+ return is->clusterMetric(this, metric, attrLevel, rtl); - } - else - return m_face->getGlyphMetric(iSlot->gid(), metric); - } - - inline - bool Segment::isWhitespace(const int cid) const - { -@@ -206,68 +237,12 @@ bool Segment::isWhitespace(const int cid - + (cid >= 0x2000) * (cid <= 0x200A) - + (cid == 0x2028) - + (cid == 0x2029) - + (cid == 0x202F) - + (cid == 0x205F) - + (cid == 0x3000)) != 0; - } - --//inline --//bool Segment::isWhitespace(const int cid) const --//{ --// switch (cid >> 8) --// { --// case 0x00: --// switch (cid) --// { --// case 0x09: --// case 0x0A: --// case 0x0B: --// case 0x0C: --// case 0x0D: --// case 0x20: --// return true; --// default: --// break; --// } --// break; --// case 0x16: --// return cid == 0x1680; --// break; --// case 0x18: --// return cid == 0x180E; --// break; --// case 0x20: --// switch (cid) --// { --// case 0x00: --// case 0x01: --// case 0x02: --// case 0x03: --// case 0x04: --// case 0x05: --// case 0x06: --// case 0x07: --// case 0x08: --// case 0x09: --// case 0x0A: --// case 0x28: --// case 0x29: --// case 0x2F: --// case 0x5F: --// return true --// default: --// break; --// } --// break; --// case 0x30: --// return cid == 0x3000; --// break; --// } --// --// return false; --//} -- - } // namespace graphite2 - - struct gr_segment : public graphite2::Segment {}; - -diff --git a/gfx/graphite2/src/inc/Silf.h b/gfx/graphite2/src/inc/Silf.h ---- a/gfx/graphite2/src/inc/Silf.h -+++ b/gfx/graphite2/src/inc/Silf.h -@@ -80,24 +80,26 @@ public: - uint16 getClassGlyph(uint16 cid, unsigned int index) const; - uint16 findPseudo(uint32 uid) const; - uint8 numUser() const { return m_aUser; } - uint8 aPseudo() const { return m_aPseudo; } - uint8 aBreak() const { return m_aBreak; } - uint8 aMirror() const {return m_aMirror; } - uint8 aPassBits() const { return m_aPassBits; } - uint8 aBidi() const { return m_aBidi; } -+ uint8 aCollision() const { return m_aCollision; } - uint8 substitutionPass() const { return m_sPass; } - uint8 positionPass() const { return m_pPass; } - uint8 justificationPass() const { return m_jPass; } - uint8 bidiPass() const { return m_bPass; } - uint8 numPasses() const { return m_numPasses; } - uint8 maxCompPerLig() const { return m_iMaxComp; } - uint16 numClasses() const { return m_nClass; } - byte flags() const { return m_flags; } -+ byte dir() const { return m_dir; } - uint8 numJustLevels() const { return m_numJusts; } - Justinfo *justAttrs() const { return m_justs; } - uint16 endLineGlyphid() const { return m_gEndLine; } - const gr_faceinfo *silfInfo() const { return &m_silfinfo; } - - CLASS_NEW_DELETE; - - private: -@@ -107,23 +109,20 @@ private: - Pass * m_passes; - Pseudo * m_pseudos; - uint32 * m_classOffsets; - uint16 * m_classData; - Justinfo * m_justs; - uint8 m_numPasses; - uint8 m_numJusts; - uint8 m_sPass, m_pPass, m_jPass, m_bPass, -- m_flags; -+ m_flags, m_dir; - -- uint8 m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits, -- m_iMaxComp; -- uint16 m_aLig, -- m_numPseudo, -- m_nClass, -- m_nLinear, -- m_gEndLine; -+ uint8 m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits, -+ m_iMaxComp, m_aCollision; -+ uint16 m_aLig, m_numPseudo, m_nClass, m_nLinear, -+ m_gEndLine; - gr_faceinfo m_silfinfo; - - void releaseBuffers() throw(); - }; - - } // namespace graphite2 -diff --git a/gfx/graphite2/src/inc/Slot.h b/gfx/graphite2/src/inc/Slot.h ---- a/gfx/graphite2/src/inc/Slot.h -+++ b/gfx/graphite2/src/inc/Slot.h -@@ -27,25 +27,23 @@ of the License or (at your option) any l - #pragma once - - #include "graphite2/Types.h" - #include "graphite2/Segment.h" - #include "inc/Main.h" - #include "inc/Font.h" - #include "inc/Position.h" - -- -- - namespace graphite2 { - - typedef gr_attrCode attrCode; - - class GlyphFace; -+class SegCacheEntry; - class Segment; --class SegCacheEntry; - - struct SlotJustify - { - static const int NUMJUSTPARAMS = 5; - - SlotJustify(const SlotJustify &); - SlotJustify & operator = (const SlotJustify &); - -@@ -70,73 +68,79 @@ class Slot - }; - - public: - struct iterator; - - unsigned short gid() const { return m_glyphid; } - Position origin() const { return m_position; } - float advance() const { return m_advance.x; } -+ void advance(Position &val) { m_advance = val; } - Position advancePos() const { return m_advance; } - int before() const { return m_before; } - int after() const { return m_after; } - uint32 index() const { return m_index; } - void index(uint32 val) { m_index = val; } - -- Slot(); -+ Slot(int16 *m_userAttr = NULL); - void set(const Slot & slot, int charOffset, size_t numUserAttr, size_t justLevels, size_t numChars); - Slot *next() const { return m_next; } - void next(Slot *s) { m_next = s; } - Slot *prev() const { return m_prev; } - void prev(Slot *s) { m_prev = s; } - uint16 glyph() const { return m_realglyphid ? m_realglyphid : m_glyphid; } - void setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph = NULL); - void setRealGid(uint16 realGid) { m_realglyphid = realGid; } - void adjKern(const Position &pos) { m_shift = m_shift + pos; m_advance = m_advance + pos; } - void origin(const Position &pos) { m_position = pos + m_shift; } - void originate(int ind) { m_original = ind; } - int original() const { return m_original; } - void before(int ind) { m_before = ind; } - void after(int ind) { m_after = ind; } - bool isBase() const { return (!m_parent); } - void update(int numSlots, int numCharInfo, Position &relpos); -- Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin); -+ Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal); - bool isDeleted() const { return (m_flags & DELETED) ? true : false; } - void markDeleted(bool state) { if (state) m_flags |= DELETED; else m_flags &= ~DELETED; } - bool isCopied() const { return (m_flags & COPIED) ? true : false; } - void markCopied(bool state) { if (state) m_flags |= COPIED; else m_flags &= ~COPIED; } - bool isPositioned() const { return (m_flags & POSITIONED) ? true : false; } - void markPositioned(bool state) { if (state) m_flags |= POSITIONED; else m_flags &= ~POSITIONED; } - bool isInsertBefore() const { return !(m_flags & INSERTED); } - uint8 getBidiLevel() const { return m_bidiLevel; } - void setBidiLevel(uint8 level) { m_bidiLevel = level; } -+ int8 getBidiClass(const Segment *seg); - int8 getBidiClass() const { return m_bidiCls; } - void setBidiClass(int8 cls) { m_bidiCls = cls; } - int16 *userAttrs() const { return m_userAttr; } - void userAttrs(int16 *p) { m_userAttr = p; } - void markInsertBefore(bool state) { if (!state) m_flags |= INSERTED; else m_flags &= ~INSERTED; } - void setAttr(Segment* seg, attrCode ind, uint8 subindex, int16 val, const SlotMap & map); - int getAttr(const Segment *seg, attrCode ind, uint8 subindex) const; - int getJustify(const Segment *seg, uint8 level, uint8 subindex) const; - void setJustify(Segment *seg, uint8 level, uint8 subindex, int16 value); - bool isLocalJustify() const { return m_justs != NULL; }; - void attachTo(Slot *ap) { m_parent = ap; } - Slot *attachedTo() const { return m_parent; } - Position attachOffset() const { return m_attach - m_with; } - Slot* firstChild() const { return m_child; } -+ void firstChild(Slot *ap) { m_child = ap; } - bool child(Slot *ap); - Slot* nextSibling() const { return m_sibling; } -+ void nextSibling(Slot *ap) { m_sibling = ap; } - bool sibling(Slot *ap); - bool removeChild(Slot *ap); - bool removeSibling(Slot *ap); -- int32 clusterMetric(const Segment* seg, uint8 metric, uint8 attrLevel); -+ int32 clusterMetric(const Segment* seg, uint8 metric, uint8 attrLevel, bool rtl); - void positionShift(Position a) { m_position += a; } - void floodShift(Position adj); - float just() const { return m_just; } - void just(float j) { m_just = j; } -+ Slot *nextInCluster(const Slot *s) const; -+ bool isChildOf(const Slot *base) const; - - CLASS_NEW_DELETE - - private: - Slot *m_next; // linked list of slots - Slot *m_prev; - unsigned short m_glyphid; // glyph id - uint16 m_realglyphid; -diff --git a/gfx/graphite2/src/inc/Sparse.h b/gfx/graphite2/src/inc/Sparse.h ---- a/gfx/graphite2/src/inc/Sparse.h -+++ b/gfx/graphite2/src/inc/Sparse.h -@@ -51,17 +51,17 @@ private: - static const unsigned char SIZEOF_CHUNK = (sizeof(mask_t) - sizeof(key_type))*8; - - struct chunk - { - mask_t mask:SIZEOF_CHUNK; - key_type offset; - }; - -- static chunk empty_chunk; -+ static const chunk empty_chunk; - sparse(const sparse &); - sparse & operator = (const sparse &); - - public: - template<typename I> - sparse(I first, const I last); - sparse() throw(); - ~sparse() throw(); -@@ -83,17 +83,17 @@ private: - } m_array; - key_type m_nchunks; - }; - - - inline - sparse::sparse() throw() : m_nchunks(0) - { -- m_array.map = &empty_chunk; -+ m_array.map = const_cast<graphite2::sparse::chunk *>(&empty_chunk); - } - - - template <typename I> - sparse::sparse(I attr, const I last) - : m_nchunks(0) - { - m_array.map = 0; -@@ -108,30 +108,31 @@ sparse::sparse(I attr, const I last) - if (v.first <= lastkey) { m_nchunks = 0; return; } - - lastkey = v.first; - const key_type k = v.first / SIZEOF_CHUNK; - if (k >= m_nchunks) m_nchunks = k+1; - } - if (m_nchunks == 0) - { -- m_array.map=&empty_chunk; -+ m_array.map=const_cast<graphite2::sparse::chunk *>(&empty_chunk); - return; - } - - m_array.values = grzeroalloc<mapped_type>((m_nchunks*sizeof(chunk) + sizeof(mapped_type)-1) - / sizeof(mapped_type) - + n_values); - - if (m_array.values == 0) - { - free(m_array.values); m_array.map=0; - return; - } - -+ // coverity[forward_null : FALSE] Since m_array is union and m_array.values is not NULL - chunk * ci = m_array.map; - ci->offset = (m_nchunks*sizeof(chunk) + sizeof(mapped_type)-1)/sizeof(mapped_type); - mapped_type * vi = m_array.values + ci->offset; - for (; attr != last; ++attr, ++vi) - { - const typename std::iterator_traits<I>::value_type v = *attr; - if (v.second == 0) { --vi; continue; } - -diff --git a/gfx/graphite2/src/inc/TtfUtil.h b/gfx/graphite2/src/inc/TtfUtil.h ---- a/gfx/graphite2/src/inc/TtfUtil.h -+++ b/gfx/graphite2/src/inc/TtfUtil.h -@@ -132,21 +132,21 @@ public: - int GetLangsForNames(const void * pName, int nPlatformId, int nEncodingId, - int *nameIdList, int cNameIds, short *langIdList); - void SwapWString(void * pWStr, size_t nSize = 0); // throw (std::invalid_argument); - #endif - - ////////////////////////////////// cmap lookup tools - const void * FindCmapSubtable(const void * pCmap, int nPlatformId = 3, - int nEncodingId = 1, size_t length = 0); -- bool CheckCmapSubtable4(const void * pCmap31); -+ bool CheckCmapSubtable4(const void * pCmap31, size_t table_len /*, unsigned int maxgid*/); - gid16 CmapSubtable4Lookup(const void * pCmapSubtabel4, unsigned int nUnicodeId, int rangeKey = 0); - unsigned int CmapSubtable4NextCodepoint(const void *pCmap31, unsigned int nUnicodeId, - int * pRangeKey = 0); -- bool CheckCmapSubtable12(const void *pCmap310); -+ bool CheckCmapSubtable12(const void *pCmap310, size_t table_len /*, unsigned int maxgid*/); - gid16 CmapSubtable12Lookup(const void * pCmap310, unsigned int uUnicodeId, int rangeKey = 0); - unsigned int CmapSubtable12NextCodepoint(const void *pCmap310, unsigned int nUnicodeId, - int * pRangeKey = 0); - - ///////////////////////////////// horizontal metric data for a glyph - bool HorMetrics(gid16 nGlyphId, const void * pHmtx, size_t lHmtxSize, - const void * pHhea, int & nLsb, unsigned int & nAdvWid); - -diff --git a/gfx/graphite2/src/inc/UtfCodec.h b/gfx/graphite2/src/inc/UtfCodec.h ---- a/gfx/graphite2/src/inc/UtfCodec.h -+++ b/gfx/graphite2/src/inc/UtfCodec.h -@@ -126,19 +126,22 @@ public: - static uchar_t get(const codeunit_t * cp, int8 & l) throw() - { - const int8 seq_sz = sz_lut[*cp >> 4]; - uchar_t u = *cp & mask_lut[seq_sz]; - l = 1; - bool toolong = false; - - switch(seq_sz) { -- case 4: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong = (u < 0x10); // no break -- case 3: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x20); // no break -- case 2: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x80); // no break -+ case 4: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong = (u < 0x10); GR_FALLTHROUGH; -+ // no break -+ case 3: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x20); GR_FALLTHROUGH; -+ // no break -+ case 2: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x80); GR_FALLTHROUGH; -+ // no break - case 1: break; - case 0: l = -1; return 0xFFFD; - } - - if (l != seq_sz || toolong) - { - l = -l; - return 0xFFFD; -diff --git a/gfx/graphite2/src/inc/bits.h b/gfx/graphite2/src/inc/bits.h ---- a/gfx/graphite2/src/inc/bits.h -+++ b/gfx/graphite2/src/inc/bits.h -@@ -24,25 +24,73 @@ Mozilla Public License (http://mozilla.o - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ - #pragma once - - namespace graphite2 - { - -+ -+#if defined GRAPHITE2_BUILTINS && (defined __GNUC__ || defined __clang__) -+ - template<typename T> - inline unsigned int bit_set_count(T v) - { -- v = v - ((v >> 1) & T(~T(0)/3)); // temp -- v = (v & T(~T(0)/15*3)) + ((v >> 2) & T(~T(0)/15*3)); // temp -- v = (v + (v >> 4)) & T(~T(0)/255*15); // temp -- return (T)(v * T(~T(0)/255)) >> (sizeof(T)-1)*8; // count -+ return __builtin_popcount(v); - } - -+template<> -+inline unsigned int bit_set_count(int16 v) -+{ -+ return __builtin_popcount(static_cast<uint16>(v)); -+} -+ -+template<> -+inline unsigned int bit_set_count(int8 v) -+{ -+ return __builtin_popcount(static_cast<uint8>(v)); -+} -+ -+template<> -+inline unsigned int bit_set_count(unsigned long v) -+{ -+ return __builtin_popcountl(v); -+} -+ -+template<> -+inline unsigned int bit_set_count(signed long v) -+{ -+ return __builtin_popcountl(v); -+} -+ -+template<> -+inline unsigned int bit_set_count(unsigned long long v) -+{ -+ return __builtin_popcountll(v); -+} -+ -+template<> -+inline unsigned int bit_set_count(signed long long v) -+{ -+ return __builtin_popcountll(v); -+} -+#else -+ -+template<typename T> -+inline unsigned int bit_set_count(T v) -+{ -+ v = v - ((v >> 1) & T(~(0UL)/3)); // temp -+ v = (v & T(~(0UL)/15*3)) + ((v >> 2) & T(~(0UL)/15*3)); // temp -+ v = (v + (v >> 4)) & T(~(0UL)/255*15); // temp -+ return (T)(v * T(~(0UL)/255)) >> (sizeof(T)-1)*8; // count -+} -+ -+#endif -+ - - template<int S> - inline unsigned long _mask_over_val(unsigned long v) - { - v = _mask_over_val<S/2>(v); - v |= v >> S*4; - return v; - } -@@ -82,9 +130,17 @@ inline T has_zero(const T x) - - template<typename T> - inline T zero_bytes(const T x, unsigned char n) - { - const T t = T(~T(0)/255*n); - return T((has_zero(x^t) >> 7)*n); - } - -+#if 0 -+inline float float_round(float x, uint32 m) -+{ -+ *reinterpret_cast<unsigned int *>(&x) &= m; -+ return *reinterpret_cast<float *>(&x); - } -+#endif -+ -+} -diff --git a/gfx/graphite2/src/inc/debug.h b/gfx/graphite2/src/inc/debug.h ---- a/gfx/graphite2/src/inc/debug.h -+++ b/gfx/graphite2/src/inc/debug.h -@@ -49,31 +49,39 @@ struct objectid - { - char name[16]; - objectid(const dslot &) throw(); - objectid(const Segment * const p) throw(); - }; - - - json & operator << (json & j, const Position &) throw(); -+json & operator << (json & j, const Rect &) throw(); - json & operator << (json & j, const CharInfo &) throw(); - json & operator << (json & j, const dslot &) throw(); - json & operator << (json & j, const objectid &) throw(); - json & operator << (json & j, const telemetry &) throw(); - - - - inline - json & operator << (json & j, const Position & p) throw() - { - return j << json::flat << json::array << p.x << p.y << json::close; - } - - - inline -+json & operator << (json & j, const Rect & p) throw() -+{ -+ return j << json::flat << json::array << p.bl.x << p.bl.y << p.tr.x << p.tr.y << json::close; -+} -+ -+ -+inline - json & operator << (json & j, const objectid & sid) throw() - { - return j << sid.name; - } - - - } // namespace graphite2 - -diff --git a/gfx/graphite2/src/inc/json.h b/gfx/graphite2/src/inc/json.h ---- a/gfx/graphite2/src/inc/json.h -+++ b/gfx/graphite2/src/inc/json.h -@@ -24,19 +24,21 @@ Mozilla Public License (http://mozilla.o - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ - // JSON pretty printer for graphite font debug output logging. - // Created on: 15 Dec 2011 - // Author: Tim Eves - - #pragma once -+ - #include "inc/Main.h" - #include <cassert> --#include <stdio.h> -+#include <cstdio> -+#include "inc/List.h" - - namespace graphite2 { - - class json - { - // Prevent copying - json(const json &); - json & operator = (const json &); -@@ -44,31 +46,36 @@ class json - typedef void (*_context_t)(json &); - class _null_t {}; - - FILE * const _stream; - char _contexts[128], // context stack - * _context, // current context (top of stack) - * _flatten; // if !0 points to context above which - // pretty printed output should occur. -+ Vector<void *> _env; - - void context(const char current) throw(); - void indent(const int d=0) throw(); - void push_context(const char, const char) throw(); - void pop_context() throw(); - - public: - class closer; - - typedef const char * string; - typedef double number; - typedef long signed int integer; - typedef bool boolean; - static const _null_t null; - -+ void setenv(unsigned int index, void *val) { _env.reserve(index + 1); if (index >= _env.size()) _env.insert(_env.end(), _env.size() - index + 1, 0); _env[index] = val; } -+ void *getenv(unsigned int index) const { return _env[index]; } -+ const Vector<void *> &getenvs() const { return _env; } -+ - static void flat(json &) throw(); - static void close(json &) throw(); - static void object(json &) throw(); - static void array(json &) throw(); - static void item(json &) throw(); - - json(FILE * stream) throw(); - ~json() throw (); -diff --git a/gfx/graphite2/src/inc/opcode_table.h b/gfx/graphite2/src/inc/opcode_table.h ---- a/gfx/graphite2/src/inc/opcode_table.h -+++ b/gfx/graphite2/src/inc/opcode_table.h -@@ -38,17 +38,17 @@ of the License or (at your option) any l - // sattrnum - 0 .. 29 (gr_slatJWidth) , 55 (gr_slatUserDefn) - // attrid - 0 .. silf.numUser() where sattrnum == 55; 0..silf.m_iMaxComp where sattrnum == 15 otherwise 0 - // gattrnum - 0 .. face->getGlyphFaceCache->numAttrs() - // gmetric - 0 .. 11 (kgmetDescent) - // featidx - 0 .. face.numFeatures() - // level - any byte - static const opcode_t opcode_table[] = - { -- {{do2(nop)}, 0, "NOP"}, -+ {{do2(nop)}, 0, "NOP"}, - - {{do2(push_byte)}, 1, "PUSH_BYTE"}, // number - {{do2(push_byte_u)}, 1, "PUSH_BYTE_U"}, // number - {{do2(push_short)}, 2, "PUSH_SHORT"}, // number number - {{do2(push_short_u)}, 2, "PUSH_SHORT_U"}, // number number - {{do2(push_long)}, 4, "PUSH_LONG"}, // number number number number - - {{do2(add)}, 0, "ADD"}, -@@ -109,12 +109,17 @@ static const opcode_t opcode_table[] = - {{do2(push_proc_state)}, 1, "PUSH_PROC_STATE"}, // dummy - {{do2(push_version)}, 0, "PUSH_VERSION"}, - {{do_(put_subs), NILOP}, 5, "PUT_SUBS"}, // slot input_class input_class output_class output_class - {{NILOP,NILOP}, 0, "PUT_SUBS2"}, - {{NILOP,NILOP}, 0, "PUT_SUBS3"}, - {{do_(put_glyph), NILOP}, 2, "PUT_GLYPH"}, // output_class output_class - {{do2(push_glyph_attr)}, 3, "PUSH_GLYPH_ATTR"}, // gattrnum gattrnum slot - {{do2(push_att_to_glyph_attr)}, 3, "PUSH_ATT_TO_GLYPH_ATTR"}, // gattrnum gattrnum slot -+ {{do2(bor)}, 0, "BITOR"}, -+ {{do2(band)}, 0, "BITAND"}, -+ {{do2(bnot)}, 0, "BITNOT"}, // 0x40 -+ {{do2(setbits)}, 4, "BITSET"}, -+ {{do2(set_feat)}, 2, "SET_FEAT"}, - // private opcodes for internal use only, comes after all other on disk opcodes. - {{do_(temp_copy), NILOP}, 0, "TEMP_COPY"} - }; - -diff --git a/gfx/graphite2/src/inc/opcodes.h b/gfx/graphite2/src/inc/opcodes.h ---- a/gfx/graphite2/src/inc/opcodes.h -+++ b/gfx/graphite2/src/inc/opcodes.h -@@ -56,16 +56,17 @@ of the License or (at your option) any l - // pushed. - // seg = A reference to the Segment this code is running over. - // is = The current slot index - // isb = The original base slot index at the start of this rule - // isf = The first positioned slot - // isl = The last positioned slot - // ip = The current instruction pointer - // endPos = Position of advance of last cluster -+// dir = writing system directionality of the font - - - // #define NOT_IMPLEMENTED assert(false) - #define NOT_IMPLEMENTED - - #define binop(op) const int32 a = pop(); *sp = int32(*sp) op a - #define use_params(n) dp += n - -@@ -236,30 +237,34 @@ STARTOP(put_subs_8bit_obs) - index = seg.findClassIndex(input_class, slot->gid()); - is->setGlyph(&seg, seg.getClassGlyph(output_class, index)); - } - ENDOP - - STARTOP(put_copy) - declare_params(1); - const int slot_ref = int8(*param); -- if (is && (slot_ref ||is != *map)) -+ if (is) - { -- int16 *tempUserAttrs = is->userAttrs(); - slotref ref = slotat(slot_ref); -- if (ref) -+ if (ref && ref != is) - { -- memcpy(tempUserAttrs, ref->userAttrs(), seg.numAttrs() * sizeof(uint16)); -+ int16 *tempUserAttrs = is->userAttrs(); -+ if (is->attachedTo() || is->firstChild()) DIE - Slot *prev = is->prev(); - Slot *next = is->next(); -- memcpy(is, slotat(slot_ref), sizeof(Slot)); -+ memcpy(tempUserAttrs, ref->userAttrs(), seg.numAttrs() * sizeof(uint16)); -+ memcpy(is, ref, sizeof(Slot)); -+ is->firstChild(NULL); -+ is->nextSibling(NULL); - is->userAttrs(tempUserAttrs); - is->next(next); - is->prev(prev); -- is->sibling(NULL); -+ if (is->attachedTo()) -+ is->attachedTo()->child(is); - } - is->markCopied(false); - is->markDeleted(false); - } - ENDOP - - STARTOP(insert) - Slot *newSlot = seg.newSlot(); -@@ -304,24 +309,26 @@ STARTOP(insert) - { - newSlot->originate(newSlot->prev()->original()); - newSlot->after(newSlot->prev()->after()); - } - else - { - newSlot->originate(seg.defaultOriginal()); - } -+ if (is == smap.highwater()) -+ smap.highpassed(false); - is = newSlot; - seg.extendLength(1); - if (map != &smap[-1]) - --map; - ENDOP - - STARTOP(delete_) -- if (!is) DIE -+ if (!is || is->isDeleted()) DIE - is->markDeleted(true); - if (is->prev()) - is->prev()->next(is->next()); - else - seg.first(is->next()); - - if (is->next()) - is->next()->prev(is->prev()); -@@ -380,30 +387,30 @@ STARTOP(attr_set) - ENDOP - - STARTOP(attr_add) - declare_params(1); - const attrCode slat = attrCode(uint8(*param)); - const int val = int(pop()); - if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) - { -- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); - flags |= POSITIONED; - } - int res = is->getAttr(&seg, slat, 0); - is->setAttr(&seg, slat, 0, val + res, smap); - ENDOP - - STARTOP(attr_sub) - declare_params(1); - const attrCode slat = attrCode(uint8(*param)); - const int val = int(pop()); - if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) - { -- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); - flags |= POSITIONED; - } - int res = is->getAttr(&seg, slat, 0); - is->setAttr(&seg, slat, 0, res - val, smap); - ENDOP - - STARTOP(attr_set_slot) - declare_params(1); -@@ -422,17 +429,17 @@ STARTOP(iattr_set_slot) - ENDOP - - STARTOP(push_slot_attr) - declare_params(2); - const attrCode slat = attrCode(uint8(param[0])); - const int slot_ref = int8(param[1]); - if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) - { -- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); - flags |= POSITIONED; - } - slotref slot = slotat(slot_ref); - if (slot) - { - int res = slot->getAttr(&seg, slat, 0); - push(res); - } -@@ -449,17 +456,17 @@ ENDOP - - STARTOP(push_glyph_metric) - declare_params(3); - const unsigned int glyph_attr = uint8(param[0]); - const int slot_ref = int8(param[1]); - const signed int attr_level = uint8(param[2]); - slotref slot = slotat(slot_ref); - if (slot) -- push(seg.getGlyphMetric(slot, glyph_attr, attr_level)); -+ push(seg.getGlyphMetric(slot, glyph_attr, attr_level, dir)); - ENDOP - - STARTOP(push_feat) - declare_params(2); - const unsigned int feat = uint8(param[0]); - const int slot_ref = int8(param[1]); - slotref slot = slotat(slot_ref); - if (slot) -@@ -487,28 +494,28 @@ STARTOP(push_att_to_glyph_metric) - const unsigned int glyph_attr = uint8(param[0]); - const int slot_ref = int8(param[1]); - const signed int attr_level = uint8(param[2]); - slotref slot = slotat(slot_ref); - if (slot) - { - slotref att = slot->attachedTo(); - if (att) slot = att; -- push(int32(seg.getGlyphMetric(slot, glyph_attr, attr_level))); -+ push(int32(seg.getGlyphMetric(slot, glyph_attr, attr_level, dir))); - } - ENDOP - - STARTOP(push_islot_attr) - declare_params(3); - const attrCode slat = attrCode(uint8(param[0])); - const int slot_ref = int8(param[1]), - idx = uint8(param[2]); - if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) - { -- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); - flags |= POSITIONED; - } - slotref slot = slotat(slot_ref); - if (slot) - { - int res = slot->getAttr(&seg, slat, idx); - push(res); - } -@@ -543,31 +550,31 @@ ENDOP - - STARTOP(iattr_add) - declare_params(2); - const attrCode slat = attrCode(uint8(param[0])); - const size_t idx = uint8(param[1]); - const int val = int(pop()); - if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) - { -- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); - flags |= POSITIONED; - } - int res = is->getAttr(&seg, slat, idx); - is->setAttr(&seg, slat, idx, val + res, smap); - ENDOP - - STARTOP(iattr_sub) - declare_params(2); - const attrCode slat = attrCode(uint8(param[0])); - const size_t idx = uint8(param[1]); - const int val = int(pop()); - if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) - { -- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); - flags |= POSITIONED; - } - int res = is->getAttr(&seg, slat, idx); - is->setAttr(&seg, slat, idx, res - val, smap); - ENDOP - - STARTOP(push_proc_state) - use_params(1); -@@ -631,16 +638,50 @@ STARTOP(push_att_to_glyph_attr) - slotref att = slot->attachedTo(); - if (att) slot = att; - push(int32(seg.glyphAttr(slot->gid(), glyph_attr))); - } - ENDOP - - STARTOP(temp_copy) - slotref newSlot = seg.newSlot(); -- if (!newSlot) DIE; -+ if (!newSlot || !is) DIE; - int16 *tempUserAttrs = newSlot->userAttrs(); - memcpy(newSlot, is, sizeof(Slot)); - memcpy(tempUserAttrs, is->userAttrs(), seg.numAttrs() * sizeof(uint16)); - newSlot->userAttrs(tempUserAttrs); - newSlot->markCopied(true); - *map = newSlot; - ENDOP -+ -+STARTOP(band) -+ binop(&); -+ENDOP -+ -+STARTOP(bor) -+ binop(|); -+ENDOP -+ -+STARTOP(bnot) -+ *sp = ~*sp; -+ENDOP -+ -+STARTOP(setbits) -+ declare_params(4); -+ const uint16 m = uint16(param[0]) << 8 -+ | uint8(param[1]); -+ const uint16 v = uint16(param[2]) << 8 -+ | uint8(param[3]); -+ *sp = ((*sp) & ~m) | v; -+ENDOP -+ -+STARTOP(set_feat) -+ declare_params(2); -+ const unsigned int feat = uint8(param[0]); -+ const int slot_ref = int8(param[1]); -+ slotref slot = slotat(slot_ref); -+ if (slot) -+ { -+ uint8 fid = seg.charinfo(slot->original())->fid(); -+ seg.setFeature(fid, feat, pop()); -+ } -+ENDOP -+ -diff --git a/gfx/graphite2/src/json.cpp b/gfx/graphite2/src/json.cpp ---- a/gfx/graphite2/src/json.cpp -+++ b/gfx/graphite2/src/json.cpp -@@ -24,17 +24,18 @@ Mozilla Public License (http://mozilla.o - License, as published by the Free Software Foundation, either version 2 - of the License or (at your option) any later version. - */ - // JSON debug logging - // Author: Tim Eves - - #if !defined GRAPHITE2_NTRACING - --#include <stdio.h> -+#include <cstdio> -+#include <limits> - #include "inc/json.h" - - using namespace graphite2; - - namespace - { - enum - { -@@ -111,16 +112,29 @@ json & json::operator << (json::string s - const char ctxt = _context[-1] == obj ? *_context == member ? seq : member : seq; - context(ctxt); - fprintf(_stream, "\"%s\"", s); - if (ctxt == member) fputc(' ', _stream); - - return *this; - } - --json & json::operator << (json::number f) throw() { context(seq); fprintf(_stream, "%g", f); return *this; } -+json & json::operator << (json::number f) throw() -+{ -+ context(seq); -+ if (std::numeric_limits<json::number>::infinity() == f) -+ fputs("Infinity", _stream); -+ else if (-std::numeric_limits<json::number>::infinity() == f) -+ fputs("-Infinity", _stream); -+ else if (std::numeric_limits<json::number>::quiet_NaN() == f || -+ std::numeric_limits<json::number>::signaling_NaN() == f) -+ fputs("NaN", _stream); -+ else -+ fprintf(_stream, "%g", f); -+ return *this; -+} - json & json::operator << (json::integer d) throw() { context(seq); fprintf(_stream, "%ld", d); return *this; } - json & json::operator << (long unsigned d) throw() { context(seq); fprintf(_stream, "%ld", d); return *this; } - json & json::operator << (json::boolean b) throw() { context(seq); fputs(b ? "true" : "false", _stream); return *this; } - json & json::operator << (json::_null_t) throw() { context(seq); fputs("null",_stream); return *this; } - - #endif - -diff --git a/gfx/graphite2/src/moz.build b/gfx/graphite2/src/moz.build ---- a/gfx/graphite2/src/moz.build -+++ b/gfx/graphite2/src/moz.build -@@ -18,37 +18,40 @@ if CONFIG['GNU_CC']: - ] - else: - UNIFIED_SOURCES += [ - 'call_machine.cpp' - ] - - # This should contain all of the _SOURCES from files.mk, except *_machine.cpp - UNIFIED_SOURCES += [ -- 'Bidi.cpp', - 'CachedFace.cpp', - 'CmapCache.cpp', - 'Code.cpp', -+ 'Collider.cpp', -+ 'Decompressor.cpp', - 'Face.cpp', - 'FeatureMap.cpp', - 'FileFace.cpp', - 'Font.cpp', - 'GlyphCache.cpp', - 'GlyphFace.cpp', - 'gr_char_info.cpp', - 'gr_face.cpp', - 'gr_features.cpp', - 'gr_font.cpp', - 'gr_logging.cpp', - 'gr_segment.cpp', - 'gr_slot.cpp', -+ 'Intervals.cpp', - 'json.cpp', - 'Justifier.cpp', - 'NameTable.cpp', - 'Pass.cpp', -+ 'Position.cpp', - 'SegCache.cpp', - 'SegCacheEntry.cpp', - 'SegCacheStore.cpp', - 'Segment.cpp', - 'Silf.cpp', - 'Slot.cpp', - 'Sparse.cpp', - 'TtfUtil.cpp', - |