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| author | Leo Famulari <leo@famulari.name> | 2016-05-13 02:03:22 -0400 |
|---|---|---|
| committer | Leo Famulari <leo@famulari.name> | 2016-05-13 02:08:11 -0400 |
| commit | eb74eb4199db3faac654114257996f244ec308f5 (patch) | |
| tree | 9504ae968710941557be6d1edd244618eeb14448 /gnu/packages/patches/icecat-update-bundled-graphite2.patch | |
| parent | f10e7ef475da430afa46e0b062010952ed886694 (diff) | |
| parent | e9017c98d61f305b624bacaa30e8891ec0100980 (diff) | |
| download | guix-eb74eb4199db3faac654114257996f244ec308f5.tar.gz | |
Merge branch 'master' into core-updates
Diffstat (limited to 'gnu/packages/patches/icecat-update-bundled-graphite2.patch')
| -rw-r--r-- | gnu/packages/patches/icecat-update-bundled-graphite2.patch | 2488 |
1 files changed, 0 insertions, 2488 deletions
diff --git a/gnu/packages/patches/icecat-update-bundled-graphite2.patch b/gnu/packages/patches/icecat-update-bundled-graphite2.patch deleted file mode 100644 index c3ab920335..0000000000 --- a/gnu/packages/patches/icecat-update-bundled-graphite2.patch +++ /dev/null @@ -1,2488 +0,0 @@ - -# HG changeset patch -# User Jonathan Kew <jkew@mozilla.com> -# Date 1460660890 -3600 -# Node ID 7330633d20ffb33941e41ea0666c4099b6e6d317 -# Parent 5c312182da9020504103aa329360abaffa7e232d -Bug 1262846 (patch for ESR trees) - Update Graphite2 library to 1.3.8. r=jrmuizel a=sledru - -diff --git a/gfx/graphite2/README.mozilla b/gfx/graphite2/README.mozilla ---- a/gfx/graphite2/README.mozilla -+++ b/gfx/graphite2/README.mozilla -@@ -1,3 +1,3 @@ --This directory contains the Graphite2 library release 1.3.6 from --https://github.com/silnrsi/graphite/releases/download/1.3.6/graphite-minimal-1.3.6.tgz -+This directory contains the Graphite2 library release 1.3.8 from -+https://github.com/silnrsi/graphite/releases/download/1.3.8/graphite2-minimal-1.3.8.tgz - See gfx/graphite2/moz-gr-update.sh for update procedure. -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 -@@ -25,17 +25,17 @@ - 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 3 --#define GR2_VERSION_BUGFIX 6 -+#define GR2_VERSION_BUGFIX 8 - - #ifdef __cplusplus - extern "C" - { - #endif - - typedef struct gr_face gr_face; - typedef struct gr_font gr_font; -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 -@@ -14,17 +14,17 @@ - RELEASE=$1 - - if [ "x$RELEASE" == "x" ] - then - echo "Must provide the version number to be used." - exit 1 - fi - --TARBALL="https://github.com/silnrsi/graphite/releases/download/$RELEASE/graphite-minimal-$RELEASE.tgz" -+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" - -diff --git a/gfx/graphite2/src/CachedFace.cpp b/gfx/graphite2/src/CachedFace.cpp ---- a/gfx/graphite2/src/CachedFace.cpp -+++ b/gfx/graphite2/src/CachedFace.cpp -@@ -64,20 +64,20 @@ bool CachedFace::runGraphite(Segment *se - return false; - - assert(m_cacheStore); - // find where the segment can be broken - Slot * subSegStartSlot = seg->first(); - Slot * subSegEndSlot = subSegStartSlot; - uint16 cmapGlyphs[eMaxSpliceSize]; - int subSegStart = 0; -- for (unsigned int i = 0; i < seg->charInfoCount(); ++i) -+ for (unsigned int i = 0; i < seg->charInfoCount() && subSegEndSlot; ++i) - { - const unsigned int length = i - subSegStart + 1; -- if (length < eMaxSpliceSize) -+ if (length < eMaxSpliceSize && subSegEndSlot->gid() < m_cacheStore->maxCmapGid()) - cmapGlyphs[length-1] = subSegEndSlot->gid(); - else return false; - const bool spaceOnly = m_cacheStore->isSpaceGlyph(subSegEndSlot->gid()); - // at this stage the character to slot mapping is still 1 to 1 - const int breakWeight = seg->charinfo(i)->breakWeight(), - nextBreakWeight = (i + 1 < seg->charInfoCount())? - seg->charinfo(i+1)->breakWeight() : 0; - const uint8 f = seg->charinfo(i)->flags(); -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 -@@ -61,93 +61,88 @@ inline bool is_return(const instr i) { - const instr pop_ret = *opmap[POP_RET].impl, - ret_zero = *opmap[RET_ZERO].impl, - ret_true = *opmap[RET_TRUE].impl; - return i == pop_ret || i == ret_zero || i == ret_true; - } - - struct context - { -- context(uint8 ref=0) : codeRef(ref) {flags.changed=false; flags.referenced=false; flags.inserted=false;} -+ context(uint8 ref=0) : codeRef(ref) {flags.changed=false; flags.referenced=false;} - struct { - uint8 changed:1, -- referenced:1, -- inserted:1; -+ referenced:1; - } flags; - uint8 codeRef; - }; - - } // end namespace - - - class Machine::Code::decoder - { - public: - struct limits; -- struct analysis -- { -- static const int NUMCONTEXTS = 256; -- uint8 slotref; -- context contexts[NUMCONTEXTS]; -- byte max_ref; -- -- analysis() : slotref(0), max_ref(0) {}; -- void set_ref(int index, bool incinsert=false) throw(); -- void set_noref(int index) throw(); -- void set_changed(int index) throw(); -- -- }; -+ static const int NUMCONTEXTS = 256; - - 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; } -+ byte max_ref() { return _max_ref; } -+ int out_index() const { return _out_index; } - - private: -+ void set_ref(int index) throw(); -+ void set_noref(int index) throw(); -+ void set_changed(int index) throw(); - 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 validate_opcode(const byte opc, const byte * const bc); - bool valid_upto(const uint16 limit, const uint16 x) const throw(); - bool test_context() const throw(); -+ bool test_ref(int8 index) const throw(); - void failure(const status_t s) const throw() { _code.failure(s); } - - Code & _code; -- int _pre_context; -- uint16 _rule_length; -+ int _out_index; -+ uint16 _out_length; - instr * _instr; - byte * _data; - limits & _max; -- analysis _analysis; - enum passtype _passtype; - int _stack_depth; - bool _in_ctxt_item; -+ int16 _slotref; -+ context _contexts[NUMCONTEXTS]; -+ byte _max_ref; - }; - - - struct Machine::Code::decoder::limits - { - 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(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), -+ _out_index(code._constraint ? 0 : lims.pre_context), -+ _out_length(code._constraint ? 1 : lims.rule_length), - _instr(code._code), _data(code._data), _max(lims), _passtype(pt), - _stack_depth(0), -- _in_ctxt_item(false) -+ _in_ctxt_item(false), -+ _slotref(0), -+ _max_ref(0) - { } - - - - 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, - enum passtype pt, byte * * const _out) - : _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0), _status(loaded), -@@ -163,17 +158,17 @@ Machine::Code::Code(bool is_constraint, - return; - } - assert(bytecode_end > bytecode_begin); - const opcode_t * op_to_fn = Machine::getOpcodeTable(); - - // Allocate code and data target buffers, these sizes are a worst case - // estimate. Once we know their real sizes the we'll shrink them. - if (_out) _code = reinterpret_cast<instr *>(*_out); -- else _code = static_cast<instr *>(malloc(estimateCodeDataOut(bytecode_end-bytecode_begin))); -+ else _code = static_cast<instr *>(malloc(estimateCodeDataOut(bytecode_end-bytecode_begin, 1, is_constraint ? 0 : rule_length))); - _data = reinterpret_cast<byte *>(_code + (bytecode_end - bytecode_begin)); - - if (!_code || !_data) { - failure(alloc_failed); - return; - } - - decoder::limits lims = { -@@ -266,23 +261,23 @@ bool Machine::Code::decoder::load(const - return bool(_code); - } - - // Validation check and fixups. - // - - opcode Machine::Code::decoder::fetch_opcode(const byte * bc) - { -- const opcode opc = opcode(*bc++); -+ const byte opc = *bc++; - - // 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) -+ switch (opcode(opc)) - { - case NOP : - break; - case PUSH_BYTE : - case PUSH_BYTEU : - case PUSH_SHORT : - case PUSH_SHORTU : - case PUSH_LONG : -@@ -319,47 +314,57 @@ opcode Machine::Code::decoder::fetch_opc - 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; -+ ++_out_index; -+ if (_out_index < -1 || _out_index > _out_length || _slotref > _max.rule_length) -+ failure(out_of_range_data); - 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])); -+ test_ref(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_ref(int8(bc[0])); - test_context(); - break; - case INSERT : - if (_passtype >= PASS_TYPE_POSITIONING) - failure(invalid_opcode); -- else -- --_pre_context; -+ ++_out_length; -+ if (_out_index < 0) ++_out_index; -+ if (_out_index < -1 || _out_index >= _out_length) -+ failure(out_of_range_data); - break; - case DELETE : - if (_passtype >= PASS_TYPE_POSITIONING) - failure(invalid_opcode); -- test_context(); -+ if (_out_index < _max.pre_context) -+ failure(out_of_range_data); -+ --_out_index; -+ --_out_length; -+ if (_out_index < -1 || _out_index > _out_length) -+ failure(out_of_range_data); - break; - case ASSOC : -+ if (bc[0] == 0) -+ failure(out_of_range_data); - for (uint8 num = bc[0]; num; --num) -- valid_upto(_rule_length, _pre_context + int8(bc[num])); -+ test_ref(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 (_in_ctxt_item) failure(nested_context_item); - break; - case ATTR_SET : -@@ -378,52 +383,43 @@ opcode Machine::Code::decoder::fetch_opc - 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])); -+ test_ref(int8(bc[1])); - if (attrCode(bc[0]) == gr_slatUserDefn) // use IATTR for user attributes - failure(out_of_range_data); - break; - case PUSH_GLYPH_ATTR_OBS : -+ case PUSH_ATT_TO_GATTR_OBS : - ++_stack_depth; - valid_upto(_max.glyf_attrs, bc[0]); -- valid_upto(_rule_length, _pre_context + int8(bc[1])); -+ test_ref(int8(bc[1])); - break; -+ case PUSH_ATT_TO_GLYPH_METRIC : - case PUSH_GLYPH_METRIC : - ++_stack_depth; - valid_upto(kgmetDescent, bc[0]); -- valid_upto(_rule_length, _pre_context + int8(bc[1])); -+ test_ref(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 -+ test_ref(int8(bc[1])); - break; - case PUSH_ISLOT_ATTR : - ++_stack_depth; - if (valid_upto(gr_slatMax, bc[0])) - { -- valid_upto(_rule_length, _pre_context + int8(bc[1])); -+ test_ref(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) -@@ -442,118 +438,107 @@ opcode Machine::Code::decoder::fetch_opc - 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])); -+ test_ref(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])); -+ test_ref(int8(bc[2])); -+ break; -+ case SET_FEAT : -+ valid_upto(_max.features, bc[0]); -+ test_ref(int8(bc[1])); - break; - default: - failure(invalid_opcode); - break; - } - -- return bool(_code) ? opc : MAX_OPCODE; -+ return bool(_code) ? opcode(opc) : MAX_OPCODE; - } - - - void Machine::Code::decoder::analyse_opcode(const opcode opc, const int8 * arg) throw() - { -- if (_code._constraint) return; -- - switch (opc) - { - case DELETE : - _code._delete = true; - break; -+ case ASSOC : -+ set_changed(0); -+// for (uint8 num = arg[0]; num; --num) -+// _analysis.set_noref(num); -+ break; - case PUT_GLYPH_8BIT_OBS : - case PUT_GLYPH : - _code._modify = true; -- _analysis.set_changed(0); -+ set_changed(0); - break; - case ATTR_SET : - case ATTR_ADD : -+ case ATTR_SUB : - case ATTR_SET_SLOT : - case IATTR_SET_SLOT : - case IATTR_SET : - case IATTR_ADD : - case IATTR_SUB : -- _analysis.set_noref(0); -+ 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); -+ ++_slotref; -+ _contexts[_slotref] = context(_code._instr_count+1); - // if (_analysis.slotref > _analysis.max_ref) _analysis.max_ref = _analysis.slotref; - break; - case INSERT : -- _analysis.contexts[_analysis.slotref].flags.inserted = true; -+ if (_slotref >= 0) --_slotref; - _code._modify = true; - break; - case PUT_SUBS_8BIT_OBS : // slotref on 1st parameter - case PUT_SUBS : - _code._modify = true; -- _analysis.set_changed(0); -+ set_changed(0); - GR_FALLTHROUGH; - // no break - case PUT_COPY : -- { -- 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(arg[0], true); -- else if (arg[0] > 0) -- _analysis.set_ref(arg[0], true); -+ if (arg[0] != 0) { set_changed(0); _code._modify = true; } -+ set_ref(arg[0]); - 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_GATTR_OBS : - 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(arg[1], true); -- else if (arg[1] > 0) -- _analysis.set_ref(arg[1], true); -+ case SET_FEAT : -+ set_ref(arg[1]); - 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(arg[2], true); -- else if (arg[2] > 0) -- _analysis.set_ref(arg[2], true); -- break; -- case ASSOC : // slotrefs in varargs -+ set_ref(arg[2]); - break; - default: - break; - } - } - - - bool Machine::Code::decoder::emit_opcode(opcode opc, const byte * & bc) -@@ -579,81 +564,89 @@ bool Machine::Code::decoder::emit_opcode - _data += param_sz; - _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); -+ assert(_out_index == 0); - _in_ctxt_item = true; -- _pre_context = _max.pre_context + int8(_data[-2]); -- _rule_length = _max.rule_length; -+ _out_index = _max.pre_context + int8(_data[-2]); -+ _slotref = int8(_data[-2]); -+ _out_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; -+ _out_length = 1; -+ _out_index = 0; -+ _slotref = 0; - _in_ctxt_item = false; - } - else - { -- _pre_context = 0; -+ _out_index = 0; -+ _slotref = 0; - return false; - } - } - - return bool(_code); - } - - - void Machine::Code::decoder::apply_analysis(instr * const code, instr * code_end) - { - // insert TEMP_COPY commands for slots that need them (that change and are referenced later) - int tempcount = 0; - if (_code._constraint) return; - - const instr temp_copy = Machine::getOpcodeTable()[TEMP_COPY].impl[0]; -- for (const context * c = _analysis.contexts, * const ce = c + _analysis.slotref; c != ce; ++c) -+ for (const context * c = _contexts, * const ce = c + _slotref; c < ce; ++c) - { - 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) -+bool Machine::Code::decoder::validate_opcode(const byte opc, const byte * const bc) - { - if (opc >= MAX_OPCODE) - { - failure(invalid_opcode); - return false; - } - const opcode_t & op = Machine::getOpcodeTable()[opc]; -+ if (op.impl[_code._constraint] == 0) -+ { -+ failure(unimplemented_opcode_used); -+ return false; -+ } - 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 - 1 + param_sz >= _max.bytecode) - { -@@ -666,56 +659,69 @@ bool Machine::Code::decoder::validate_op - - bool Machine::Code::decoder::valid_upto(const uint16 limit, const uint16 x) const throw() - { - const bool t = (limit != 0) && (x < limit); - if (!t) failure(out_of_range_data); - return t; - } - -+inline -+bool Machine::Code::decoder::test_ref(int8 index) const throw() -+{ -+ if (_code._constraint && !_in_ctxt_item) -+ { -+ if (index > 0 || -index > _max.pre_context) -+ { -+ failure(out_of_range_data); -+ return false; -+ } -+ } -+ else -+ return valid_upto(_max.rule_length, _slotref + _max.pre_context + index); -+ return true; -+} -+ - bool Machine::Code::decoder::test_context() const throw() - { -- if (_pre_context >= _rule_length || _analysis.slotref >= analysis::NUMCONTEXTS - 1) -+ if (_out_index >= _out_length || _out_index < 0 || _slotref >= NUMCONTEXTS - 1) - { - 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(int index, bool incinsert) throw() { -- if (incinsert && contexts[slotref].flags.inserted) --index; -- if (index + slotref < 0 || index + slotref >= NUMCONTEXTS) return; -- contexts[index + slotref].flags.referenced = true; -- if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; -+void Machine::Code::decoder::set_ref(int index) throw() { -+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return; -+ _contexts[index + _slotref].flags.referenced = true; -+ if (index + _slotref > _max_ref) _max_ref = index + _slotref; - } - - - inline --void Machine::Code::decoder::analysis::set_noref(int index) throw() { -- if (contexts[slotref].flags.inserted) --index; -- if (index + slotref < 0 || index + slotref >= NUMCONTEXTS) return; -- if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; -+void Machine::Code::decoder::set_noref(int index) throw() { -+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return; -+ if (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 || index + slotref >= NUMCONTEXTS) 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::decoder::set_changed(int index) throw() { -+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return; -+ _contexts[index + _slotref].flags.changed= true; -+ if (index + _slotref > _max_ref) _max_ref = index + _slotref; - } - - - void Machine::Code::release_buffers() throw() - { - if (_own) - free(_code); - _code = 0; -diff --git a/gfx/graphite2/src/Collider.cpp b/gfx/graphite2/src/Collider.cpp ---- a/gfx/graphite2/src/Collider.cpp -+++ b/gfx/graphite2/src/Collider.cpp -@@ -21,17 +21,17 @@ - - 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 <cmath> - #include <string> - #include <functional> - #include "inc/Collider.h" - #include "inc/Segment.h" - #include "inc/Slot.h" - #include "inc/GlyphCache.h" - #include "inc/Sparse.h" - -@@ -824,43 +824,43 @@ bool KernCollider::initSlot(Segment *seg - 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; -+ _maxy = ymax + margin; -+ _miny = ymin - margin; - 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); -+ numSlices = int((ymin - margin - _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); -+ numSlices = int((ymax + margin - _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(); - } -@@ -930,53 +930,60 @@ bool KernCollider::initSlot(Segment *seg - // 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); -+ float x = (sx + (rtl > 0 ? bb.tr.x : bb.bl.x)) * rtl; - // this isn't going to reduce _mingap so skip -- if ((rtl > 0 && x < _xbound - _mingap - currSpace) || (rtl <= 0 && x > _xbound + _mingap + currSpace)) -+ if (x < rtl * (_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)); -+ int smin = max(1, int((bb.bl.y + (1 - _miny + sy)) / _sliceWidth + 1)) - 1; -+ int smax = min((int)_edges.size() - 2, int((bb.tr.y + (1 - _miny + sy)) / _sliceWidth + 1)) + 1; -+ if (smin > smax) -+ return false; - bool collides = false; -+ float below = smin > 0 ? _edges[smin-1] * rtl : 1e38f; -+ float here = _edges[smin] * rtl; -+ float above = smin < (int)_edges.size() - 1 ? _edges[smin+1] * rtl : 1e38f; - - 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) -+ if ( (x > here - _mingap - currSpace) -+ || (x > below - _mingap - currSpace) -+ || (x > above - _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); -+ float m = get_edge(seg, slot, currShift, y, _sliceWidth, rtl > 0) * rtl + 2 * currSpace; - // 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)); -+ t = min(min(here, below), above) - 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]) -+ if (m > rtl * _nearEdges[i]) - { - _slotNear[i] = slot; -- _nearEdges[i] = m; -+ _nearEdges[i] = m * rtl; - } - #endif - } -+ below = here; here = above; -+ above = i < (int)_edges.size() - 2 ? _edges[i+2] * rtl : 1e38f; - } - 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, -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 -@@ -178,17 +178,18 @@ bool Face::runGraphite(Segment *seg, con - if ((seg->dir() & 3) == 3 && aSilf->bidiPass() == 0xFF) - seg->doMirror(aSilf->aMirror()); - bool res = aSilf->runGraphite(seg, 0, aSilf->positionPass(), true); - if (res) - { - seg->associateChars(0, seg->charInfoCount()); - if (aSilf->flags() & 0x20) - res &= seg->initCollisions(); -- res &= aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false); -+ if (res) -+ 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 -@@ -226,17 +227,17 @@ const Silf *Face::chooseSilf(uint32 scri - return m_silfs; - } - - uint16 Face::findPseudo(uint32 uid) const - { - return (m_numSilf) ? m_silfs[0].findPseudo(uid) : 0; - } - --uint16 Face::getGlyphMetric(uint16 gid, uint8 metric) const -+int32 Face::getGlyphMetric(uint16 gid, uint8 metric) const - { - switch (metrics(metric)) - { - case kgmetAscent : return m_ascent; - case kgmetDescent : return m_descent; - default: - if (gid >= glyphs().numGlyphs()) return 0; - return glyphs().glyph(gid)->getMetric(metric); -@@ -277,17 +278,17 @@ Face::Table::Table(const Face & face, co - : _f(&face), _compressed(false) - { - size_t sz = 0; - _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 -+ releaseBuffers(); // Make sure we release the table buffer even if the table failed it's checks - return; - } - - if (be::peek<uint32>(_p) >= version) - decompress(); - } - - void Face::Table::releaseBuffers() -@@ -324,17 +325,18 @@ Error Face::Table::decompress() - 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)) -+ if (!e.test(!uncompressed_table || uncompressed_size < 4, E_OUTOFMEM)) -+ memset(uncompressed_table, 0, 4); // make sure version number is initialised - // 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); -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 -@@ -111,18 +111,20 @@ private: - _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), -+ _glyphs(_glyph_loader && *_glyph_loader && _glyph_loader->num_glyphs() -+ ? grzeroalloc<const GlyphFace *>(_glyph_loader->num_glyphs()) : 0), -+ _boxes(_glyph_loader && _glyph_loader->has_boxes() && _glyph_loader->num_glyphs() -+ ? 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]; -@@ -139,17 +141,17 @@ GlyphCache::GlyphCache(const Face & face - for (uint16 gid = 1; loaded && gid != _num_glyphs; ++gid) - _glyphs[gid] = loaded = _glyph_loader->read_glyph(gid, glyphs[gid], &numsubs); - - if (!loaded) - { - _glyphs[0] = 0; - delete [] glyphs; - } -- else if (numsubs > 0) -+ else if (numsubs > 0 && _boxes) - { - 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]); -@@ -204,16 +206,18 @@ GlyphCache::~GlyphCache() - 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 - { -+ if (glyphid >= numGlyphs()) -+ return _glyphs[0]; - 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, &numsubs); - if (!p) - { -@@ -280,26 +284,27 @@ GlyphCache::Loader::Loader(const Face & - _long_fmt = flags & 1; - int tmpnumgattrs = (m_pGloc.size() - - (p - m_pGloc) - - sizeof(uint16)*(flags & 0x2 ? _num_attrs : 0)) - / (_long_fmt ? sizeof(uint32) : sizeof(uint16)) - 1; - - if (version >= 0x00020000 || tmpnumgattrs < 0 || tmpnumgattrs > 65535 - || _num_attrs == 0 || _num_attrs > 0x3000 // is this hard limit appropriate? -- || _num_glyphs_graphics > tmpnumgattrs) -+ || _num_glyphs_graphics > tmpnumgattrs -+ || m_pGlat.size() < 4) - { - _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 -+ if (version >= 0x00040000 || (version >= 0x00030000 && m_pGlat.size() < 8)) // 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; -@@ -381,22 +386,24 @@ const GlyphFace * GlyphCache::Loader::re - } - else - { - be::skip<uint16>(gloc, glyphid); - glocs = be::read<uint16>(gloc); - gloce = be::peek<uint16>(gloc); - } - -- if (glocs >= m_pGlat.size() || gloce > m_pGlat.size()) -+ if (glocs >= m_pGlat.size() - 1 || gloce > m_pGlat.size()) - return 0; - - const uint32 glat_version = be::peek<uint32>(m_pGlat); -- if (glat_version == 0x00030000) -+ if (glat_version >= 0x00030000) - { -+ if (glocs >= gloce) -+ return 0; - 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; - } -@@ -449,29 +456,31 @@ GlyphBox * GlyphCache::Loader::read_box( - } - 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()) -+ if (gloce > m_pGlat.size() || glocs + 6 >= gloce) - 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); -+ if (glocs + 6 + num * 8 >= gloce) -+ return 0; - - 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/GlyphFace.cpp b/gfx/graphite2/src/GlyphFace.cpp ---- a/gfx/graphite2/src/GlyphFace.cpp -+++ b/gfx/graphite2/src/GlyphFace.cpp -@@ -24,25 +24,25 @@ 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/GlyphFace.h" - - - using namespace graphite2; - --uint16 GlyphFace::getMetric(uint8 metric) const -+int32 GlyphFace::getMetric(uint8 metric) const - { - switch (metrics(metric)) - { -- case kgmetLsb : return static_cast<uint16>(m_bbox.bl.x); -- case kgmetRsb : return static_cast<uint16>(m_advance.x - m_bbox.tr.x); -- case kgmetBbTop : return static_cast<uint16>(m_bbox.tr.y); -- case kgmetBbBottom : return static_cast<uint16>(m_bbox.bl.y); -- case kgmetBbLeft : return static_cast<uint16>(m_bbox.bl.x); -- case kgmetBbRight : return static_cast<uint16>(m_bbox.tr.x); -- case kgmetBbHeight : return static_cast<uint16>(m_bbox.tr.y - m_bbox.bl.y); -- case kgmetBbWidth : return static_cast<uint16>(m_bbox.tr.x - m_bbox.bl.x); -- case kgmetAdvWidth : return static_cast<uint16>(m_advance.x); -- case kgmetAdvHeight : return static_cast<uint16>(m_advance.y); -+ case kgmetLsb : return m_bbox.bl.x; -+ case kgmetRsb : return m_advance.x - m_bbox.tr.x; -+ case kgmetBbTop : return m_bbox.tr.y; -+ case kgmetBbBottom : return m_bbox.bl.y; -+ case kgmetBbLeft : return m_bbox.bl.x; -+ case kgmetBbRight : return m_bbox.tr.x; -+ case kgmetBbHeight : return m_bbox.tr.y - m_bbox.bl.y; -+ case kgmetBbWidth : return m_bbox.tr.x - m_bbox.bl.x; -+ case kgmetAdvWidth : return m_advance.x; -+ case kgmetAdvHeight : return m_advance.y; - default : return 0; - } - } -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 -@@ -95,62 +95,63 @@ float Segment::justify(Slot *pSlot, cons - - end = pLast->nextSibling(); - pFirst = pFirst->nextSibling(); - - int icount = 0; - int numLevels = silf()->numJustLevels(); - if (!numLevels) - { -- for (s = pSlot; s != end; s = s->next()) -+ for (s = pSlot; s && s != end; s = s->nextSibling()) - { - CharInfo *c = charinfo(s->before()); - if (isWhitespace(c->unicodeChar())) - { - s->setJustify(this, 0, 3, 1); - s->setJustify(this, 0, 2, 1); - s->setJustify(this, 0, 0, -1); - ++icount; - } - } - if (!icount) - { -- for (s = pSlot; s != end; s = s->nextSibling()) -+ for (s = pSlot; s && s != end; s = s->nextSibling()) - { - s->setJustify(this, 0, 3, 1); - s->setJustify(this, 0, 2, 1); - s->setJustify(this, 0, 0, -1); - } - } - ++numLevels; - } - - Vector<JustifyTotal> stats(numLevels); -- for (s = pFirst; s != end; s = s->nextSibling()) -+ for (s = pFirst; s && 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 < 0.0f) ? -1 : numLevels - 1; i >= 0; --i) - { - float diff; - float error = 0.; - float diffpw; - int tWeight = stats[i].weight(); -+ if (tWeight == 0) continue; - - do { - error = 0.; - diff = width - currWidth; - diffpw = diff / tWeight; - tWeight = 0; -- for (s = pFirst; s != end; s = s->nextSibling()) // don't include final glyph -+ for (s = pFirst; s && s != end; s = s->nextSibling()) // don't include final glyph - { - int w = s->getJustify(this, i, 3); - float pref = diffpw * w + error; - int step = s->getJustify(this, i, 2); - if (!step) step = 1; // handle lazy font developers - if (pref > 0) - { - float max = uint16(s->getJustify(this, i, 0)); -diff --git a/gfx/graphite2/src/NameTable.cpp b/gfx/graphite2/src/NameTable.cpp ---- a/gfx/graphite2/src/NameTable.cpp -+++ b/gfx/graphite2/src/NameTable.cpp -@@ -42,25 +42,26 @@ NameTable::NameTable(const void* data, s - memcpy(pdata, data, length); - m_table = reinterpret_cast<const TtfUtil::Sfnt::FontNames*>(pdata); - - if ((length > sizeof(TtfUtil::Sfnt::FontNames)) && - (length > sizeof(TtfUtil::Sfnt::FontNames) + - sizeof(TtfUtil::Sfnt::NameRecord) * ( be::swap<uint16>(m_table->count) - 1))) - { - uint16 offset = be::swap<uint16>(m_table->string_offset); -- m_nameData = reinterpret_cast<const uint8*>(pdata) + offset; -- setPlatformEncoding(platformId, encodingID); -- m_nameDataLength = length - offset; -+ if (offset < length) -+ { -+ m_nameData = reinterpret_cast<const uint8*>(pdata) + offset; -+ setPlatformEncoding(platformId, encodingID); -+ m_nameDataLength = length - offset; -+ return; -+ } - } -- else -- { -- free(const_cast<TtfUtil::Sfnt::FontNames*>(m_table)); -- m_table = NULL; -- } -+ free(const_cast<TtfUtil::Sfnt::FontNames*>(m_table)); -+ m_table = NULL; - } - - uint16 NameTable::setPlatformEncoding(uint16 platformId, uint16 encodingID) - { - if (!m_nameData) return 0; - uint16 i = 0; - uint16 count = be::swap<uint16>(m_table->count); - for (; i < count; i++) -@@ -139,28 +140,36 @@ void* NameTable::getName(uint16& languag - uint16 offset = be::swap<uint16>(nameRecord.offset); - if(offset + utf16Length > m_nameDataLength) - { - languageId = 0; - length = 0; - return NULL; - } - utf16Length >>= 1; // in utf16 units -- utf16::codeunit_t * utf16Name = gralloc<utf16::codeunit_t>(utf16Length); -+ utf16::codeunit_t * utf16Name = gralloc<utf16::codeunit_t>(utf16Length + 1); - if (!utf16Name) - { - languageId = 0; - length = 0; - return NULL; - } - const uint8* pName = m_nameData + offset; - for (size_t i = 0; i < utf16Length; i++) - { - utf16Name[i] = be::read<uint16>(pName); - } -+ utf16Name[utf16Length] = 0; -+ if (!utf16::validate(utf16Name, utf16Name + utf16Length)) -+ { -+ free(utf16Name); -+ languageId = 0; -+ length = 0; -+ return NULL; -+ } - switch (enc) - { - case gr_utf8: - { - utf8::codeunit_t* uniBuffer = gralloc<utf8::codeunit_t>(3 * utf16Length + 1); - if (!uniBuffer) - { - free(utf16Name); -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 -@@ -96,17 +96,17 @@ bool Pass::readPass(const byte * const p - 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 - const byte flags = be::read<byte>(p); - if (e.test((flags & 0x1f) && -- (pt < PASS_TYPE_POSITIONING || !m_silf->aCollision() || !face.glyphs().hasBoxes()), -+ (pt < PASS_TYPE_POSITIONING || !m_silf->aCollision() || !face.glyphs().hasBoxes() || !(m_silf->flags() & 0x20)), - 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 -@@ -226,17 +226,21 @@ bool Pass::readRules(const byte * rule_m - // 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); -+ int totalSlots = 0; -+ const uint16 *tsort = sort_key; -+ for (int i = 0; i < m_numRules; ++i) -+ totalSlots += be::peek<uint16>(--tsort); -+ const size_t prog_pool_sz = vm::Machine::Code::estimateCodeDataOut(ac_end - ac_data + rc_end - rc_data, 2 * m_numRules, totalSlots); - 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; r >= m_rules; --n, --r, ac_end = ac_begin, rc_end = rc_begin) - { -@@ -249,17 +253,17 @@ bool Pass::readRules(const byte * rule_m - 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 -- || vm::Machine::Code::estimateCodeDataOut(ac_end - ac_begin + rc_end - rc_begin) > size_t(prog_pool_end - prog_pool_free)) -+ || vm::Machine::Code::estimateCodeDataOut(ac_end - ac_begin + rc_end - rc_begin, 2, r->sort) > size_t(prog_pool_end - prog_pool_free)) - return false; - 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)) -@@ -330,17 +334,17 @@ bool Pass::readStates(const byte * start - - // load state transition table. - for (uint16 * t = m_transitions, - * const t_end = t + m_numTransition*m_numColumns; t != t_end; ++t) - { - *t = be::read<uint16>(states); - if (e.test(*t >= m_numStates, E_BADSTATE)) - { -- face.error_context((face.error_context() & 0xFFFF00) + EC_ATRANS + (((t - m_transitions) / m_numColumns) << 24)); -+ face.error_context((face.error_context() & 0xFFFF00) + EC_ATRANS + (((t - m_transitions) / m_numColumns) << 8)); - return face.error(e); - } - } - - State * s = m_states, - * const success_begin = m_states + m_numStates - m_numSuccess; - const RuleEntry * rule_map_end = m_ruleMap + be::peek<uint16>(o_rule_map + m_numSuccess*sizeof(uint16)); - for (size_t n = m_numStates; n; --n, ++s) -@@ -351,17 +355,18 @@ bool Pass::readStates(const byte * start - if (e.test(begin >= rule_map_end || end > rule_map_end || begin > end, E_BADRULEMAPPING)) - { - face.error_context((face.error_context() & 0xFFFF00) + EC_ARULEMAP + (n << 24)); - return face.error(e); - } - s->rules = begin; - s->rules_end = (end - begin <= FiniteStateMachine::MAX_RULES)? end : - begin + FiniteStateMachine::MAX_RULES; -- qsort(begin, end - begin, sizeof(RuleEntry), &cmpRuleEntry); -+ if (begin) // keep UBSan happy can't call qsort with null begin -+ qsort(begin, end - begin, sizeof(RuleEntry), &cmpRuleEntry); - } - - return true; - } - - bool Pass::readRanges(const byte * ranges, size_t num_ranges, Error &e) - { - m_cols = gralloc<uint16>(m_numGlyphs); -@@ -449,19 +454,19 @@ bool Pass::runFSM(FiniteStateMachine& fs - if (fsm.slots.context() < m_minPreCtxt) - return false; - - uint16 state = m_startStates[m_maxPreCtxt - fsm.slots.context()]; - uint8 free_slots = SlotMap::MAX_SLOTS; - do - { - fsm.slots.pushSlot(slot); -- if (--free_slots == 0 -- || slot->gid() >= m_numGlyphs -+ if (slot->gid() >= m_numGlyphs - || m_cols[slot->gid()] == 0xffffU -+ || --free_slots == 0 - || state >= m_numTransition) - return free_slots != 0; - - const uint16 * transitions = m_transitions + state*m_numColumns; - state = transitions[m_cols[slot->gid()]]; - if (state >= m_successStart) - fsm.rules.accumulate_rules(m_states[state]); - -@@ -627,37 +632,40 @@ bool Pass::testPassConstraint(Machine & - } - - - bool Pass::testConstraint(const Rule & r, Machine & m) const - { - const uint16 curr_context = m.slotMap().context(); - if (unsigned(r.sort - r.preContext) > m.slotMap().size() - curr_context - || curr_context - r.preContext < 0) return false; -+ -+ vm::slotref * map = m.slotMap().begin() + curr_context - r.preContext; -+ if (map[r.sort - 1] == 0) -+ return false; -+ - if (!*r.constraint) return true; - assert(r.constraint->constraint()); -- -- vm::slotref * map = m.slotMap().begin() + curr_context - r.preContext; - for (int n = r.sort; n && map; --n, ++map) - { - if (!*map) continue; - const int32 ret = r.constraint->run(m, map); - if (!ret || m.status() != Machine::finished) - return false; - } - - return true; - } - - - 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 && (slot->isDeleted() || slot->isCopied())) - { - if (slot == aSlot) - aSlot = slot->prev() ? slot->prev() : slot->next(); - segment.freeSlot(slot); - } - } - } - -@@ -848,17 +856,16 @@ bool Pass::collisionShift(Segment *seg, - } - } - } - 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) -@@ -871,17 +878,17 @@ bool Pass::collisionKern(Segment *seg, i - 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); -+ resolveKern(seg, s, start, 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) -@@ -1010,17 +1017,17 @@ bool Pass::resolveCollisions(Segment *se - 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 Pass::resolveKern(Segment *seg, Slot *slotFix, GR_MAYBE_UNUSED Slot *start, 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()) -@@ -1030,16 +1037,17 @@ float Pass::resolveKern(Segment *seg, Sl - - 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; -+ KernCollider coll(dbgout); - - 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()); -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 -@@ -419,16 +419,19 @@ Position Segment::positionSlots(const Fo - reverseSlots(); - temp = iStart; - iStart = iEnd; - iEnd = temp; - } - if (!iStart) iStart = m_first; - if (!iEnd) iEnd = m_last; - -+ if (!iStart || !iEnd) // only true for empty segments -+ return currpos; -+ - 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, isRtl, isFinal); - } - } -@@ -526,11 +529,14 @@ void Segment::doMirror(uint16 aMirror) - } - - 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); -+ if (p->index() < slotCount()) -+ ::new (collisionInfo(p)) SlotCollision(this, p); -+ else -+ return false; - 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 -@@ -350,20 +350,20 @@ 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, m_dir); -+ unsigned int maxSize = seg->slotCount() * MAX_SEG_GROWTH_FACTOR; -+ SlotMap map(*seg, m_dir, maxSize); - 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) -@@ -419,13 +419,13 @@ bool Silf::runGraphite(Segment *seg, uin - - // test whether to reorder, prepare for positioning - 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 -- || (seg->slotCount() && seg->slotCount() * MAX_SEG_GROWTH_FACTOR < initSize)) -+ || (seg->slotCount() && seg->slotCount() > maxSize)) - 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 -@@ -80,20 +80,20 @@ void Slot::set(const Slot & orig, int ch - - 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, bool rtl, bool isFinal) -+Position Slot::finalise(const Segment *seg, const Font *font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal, int depth) - { - SlotCollision *coll = NULL; -- if (attrLevel && m_attLevel > attrLevel) return Position(0, 0); -+ if (depth > 100 || (attrLevel && m_attLevel > attrLevel)) return Position(0, 0); - 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; -@@ -128,23 +128,23 @@ Position Slot::finalise(const Segment *s - 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, rtl, isFinal); -+ Position tRes = m_child->finalise(seg, font, m_position, bbox, attrLevel, clusterMin, rtl, isFinal, depth + 1); - 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, rtl, isFinal); -+ Position tRes = m_sibling->finalise(seg, font, base, bbox, attrLevel, clusterMin, rtl, isFinal, depth + 1); - if (tRes.x > res.x) res = tRes; - } - - if (!m_parent && clusterMin < base.x) - { - Position adj = Position(m_position.x - clusterMin, 0.); - res += adj; - m_position += adj; -@@ -160,35 +160,35 @@ int32 Slot::clusterMetric(const Segment - return 0; - Rect bbox = seg->theGlyphBBoxTemporary(glyph()); - float clusterMin = 0.; - Position res = finalise(seg, NULL, base, bbox, attrLevel, clusterMin, rtl, false); - - switch (metrics(metric)) - { - case kgmetLsb : -- return static_cast<uint32>(bbox.bl.x); -+ return bbox.bl.x; - case kgmetRsb : -- return static_cast<uint32>(res.x - bbox.tr.x); -+ return res.x - bbox.tr.x; - case kgmetBbTop : -- return static_cast<uint32>(bbox.tr.y); -+ return bbox.tr.y; - case kgmetBbBottom : -- return static_cast<uint32>(bbox.bl.y); -+ return bbox.bl.y; - case kgmetBbLeft : -- return static_cast<uint32>(bbox.bl.x); -+ return bbox.bl.x; - case kgmetBbRight : -- return static_cast<uint32>(bbox.tr.x); -+ return bbox.tr.x; - case kgmetBbWidth : -- return static_cast<uint32>(bbox.tr.x - bbox.bl.x); -+ return bbox.tr.x - bbox.bl.x; - case kgmetBbHeight : -- return static_cast<uint32>(bbox.tr.y - bbox.bl.y); -+ return bbox.tr.y - bbox.bl.y; - case kgmetAdvWidth : -- return static_cast<uint32>(res.x); -+ return res.x; - case kgmetAdvHeight : -- return static_cast<uint32>(res.y); -+ return 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 -@@ -290,19 +290,32 @@ 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 || other == m_parent) break; -- if (m_parent) m_parent->removeChild(this); -- if (!other->isChildOf(this) && other->child(this)) -+ if (other == this || other == m_parent || other->isCopied()) break; -+ if (m_parent) { m_parent->removeChild(this); attachTo(NULL); } -+ Slot *pOther = other; -+ int count = 0; -+ bool foundOther = false; -+ while (pOther) -+ { -+ ++count; -+ if (pOther == this) foundOther = true; -+ pOther = pOther->attachedTo(); -+ } -+ for (pOther = m_child; pOther; pOther = pOther->m_child) -+ ++count; -+ for (pOther = m_sibling; pOther; pOther = pOther->m_sibling) -+ ++count; -+ if (count < 100 && !foundOther && other->child(this)) - { - attachTo(other); - if ((map.dir() != 0) ^ (idx > subindex)) - m_with = Position(advance(), 0); - else // normal match to previous root - m_attach = Position(other->advance(), 0); - } - } -@@ -416,41 +429,34 @@ bool Slot::sibling(Slot *ap) - m_sibling = ap; - else - return m_sibling->sibling(ap); - return true; - } - - bool Slot::removeChild(Slot *ap) - { -- if (this == ap || !m_child) return false; -+ if (this == ap || !m_child || !ap) return false; - else if (ap == m_child) - { - Slot *nSibling = m_child->nextSibling(); -- m_child->removeSibling(nSibling); -+ m_child->nextSibling(NULL); - m_child = nSibling; - return true; - } -- else -- return m_child->removeSibling(ap); -- return true; --} -- --bool Slot::removeSibling(Slot *ap) --{ -- if (this == ap || !m_sibling) return false; -- else if (ap == m_sibling) -+ for (Slot *p = m_child; p; p = p->m_sibling) - { -- m_sibling = m_sibling->nextSibling(); -- if (m_sibling) ap->removeSibling(m_sibling); -- return true; -+ if (p->m_sibling && p->m_sibling == ap) -+ { -+ p->m_sibling = p->m_sibling->m_sibling; -+ ap->nextSibling(NULL); -+ return true; -+ } - } -- else -- return m_sibling->removeSibling(ap); -- return true; -+ return false; - } - - void Slot::setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph) - { - m_glyphid = glyphid; - m_bidiCls = -1; - if (!theGlyph) - { -@@ -475,21 +481,23 @@ void Slot::setGlyph(Segment *seg, uint16 - 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) -+void Slot::floodShift(Position adj, int depth) - { -+ if (depth > 100) -+ return; - m_position += adj; -- if (m_child) m_child->floodShift(adj); -- if (m_sibling) m_sibling->floodShift(adj); -+ if (m_child) m_child->floodShift(adj, depth + 1); -+ if (m_sibling) m_sibling->floodShift(adj, depth + 1); - } - - void SlotJustify::LoadSlot(const Slot *s, const Segment *seg) - { - for (int i = seg->silf()->numJustLevels() - 1; i >= 0; --i) - { - Justinfo *justs = seg->silf()->justAttrs() + i; - int16 *v = values + i * NUMJUSTPARAMS; -@@ -514,15 +522,14 @@ Slot * Slot::nextInCluster(const Slot *s - 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); -+ for (Slot *p = m_parent; p; p = p->m_parent) -+ if (p == base) -+ return true; -+ return false; - } -+ -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 -@@ -891,25 +891,27 @@ const void * FindCmapSubtable(const void - ----------------------------------------------------------------------------------------------*/ - bool CheckCmapSubtable4(const void * pCmapSubtable4, const void * pCmapEnd /*, unsigned int maxgid*/) - { - size_t table_len = (const byte *)pCmapEnd - (const byte *)pCmapSubtable4; - if (!pCmapSubtable4) return false; - const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable4); - // 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; -+ if (table_len < sizeof(*pTable) || be::swap(pTable->format) != 4) return false; - const Sfnt::CmapSubTableFormat4 * pTable4 = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtable4); -+ if (table_len < sizeof(*pTable4)) -+ return false; - 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)) -+ if (!nRanges || 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); - if (chEnd != 0xFFFF) - return false; - #if 0 - int lastend = -1; - for (int i = 0; i < nRanges; ++i) -@@ -999,17 +1001,17 @@ gid16 CmapSubtable4Lookup(const void * p - uint16 idRangeOffset = be::peek<uint16>(pMid += nSeg); - - if (idRangeOffset == 0) - return (uint16)(idDelta + nUnicodeId); // must use modulus 2^16 - - // Look up value in glyphIdArray - const ptrdiff_t offset = (nUnicodeId - chStart) + (idRangeOffset >> 1) + - (pMid - reinterpret_cast<const uint16 *>(pTable)); -- if (offset * 2 >= be::swap<uint16>(pTable->length)) -+ if (offset * 2 + 1 >= be::swap<uint16>(pTable->length)) - return 0; - gid16 nGlyphId = be::peek<uint16>(reinterpret_cast<const uint16 *>(pTable)+offset); - // If this value is 0, return 0. Else add the idDelta - return nGlyphId ? nGlyphId + idDelta : 0; - } - - return 0; - } -@@ -1081,19 +1083,21 @@ unsigned int CmapSubtable4NextCodepoint( - /*---------------------------------------------------------------------------------------------- - Check the Microsoft UCS-4 subtable for expected values. - ----------------------------------------------------------------------------------------------*/ - bool CheckCmapSubtable12(const void *pCmapSubtable12, const void *pCmapEnd /*, unsigned int maxgid*/) - { - size_t table_len = (const byte *)pCmapEnd - (const byte *)pCmapSubtable12; - if (!pCmapSubtable12) return false; - const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable12); -- if (be::swap(pTable->format) != 12) -+ if (table_len < sizeof(*pTable) || be::swap(pTable->format) != 12) - return false; - const Sfnt::CmapSubTableFormat12 * pTable12 = reinterpret_cast<const Sfnt::CmapSubTableFormat12 *>(pCmapSubtable12); -+ if (table_len < sizeof(*pTable12)) -+ return false; - uint32 length = be::swap(pTable12->length); - if (length > table_len) - return false; - if (length < sizeof(Sfnt::CmapSubTableFormat12)) - return false; - uint32 num_groups = be::swap(pTable12->num_groups); - if (num_groups > 0x10000000 || length != (sizeof(Sfnt::CmapSubTableFormat12) + (num_groups - 1) * sizeof(uint32) * 3)) - return false; -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 -@@ -81,17 +81,17 @@ 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); -+ static size_t estimateCodeDataOut(size_t num_bytecodes, int nRules, int nSlots); - - 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 &, - enum passtype pt, byte * * const _out = 0); - Code(const Machine::Code &) throw(); - ~Code() throw(); - -@@ -107,19 +107,21 @@ public: - 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) -+size_t Machine::Code::estimateCodeDataOut(size_t n_bc, int nRules, int nSlots) - { -- return (n_bc + 1) * (sizeof(instr)+sizeof(byte)); -+ // max is: all codes are instructions + 1 for each rule + max tempcopies -+ // allocate space for separate maximal code and data then merge them later -+ return (n_bc + nRules + nSlots) * sizeof(instr) + n_bc * 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), - _own(false) - { -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 -@@ -82,17 +82,17 @@ public: - uint16 languageForLocale(const char * locale) const; - - // Features - uint16 numFeatures() const; - const FeatureRef * featureById(uint32 id) const; - const FeatureRef * feature(uint16 index) const; - - // Glyph related -- uint16 getGlyphMetric(uint16 gid, uint8 metric) const; -+ int32 getGlyphMetric(uint16 gid, uint8 metric) const; - uint16 findPseudo(uint32 uid) const; - - // Errors - unsigned int error() const { return m_error; } - bool error(Error e) { m_error = e.error(); return false; } - unsigned int error_context() const { return m_error; } - void error_context(unsigned int errcntxt) { m_errcntxt = errcntxt; } - -diff --git a/gfx/graphite2/src/inc/GlyphFace.h b/gfx/graphite2/src/inc/GlyphFace.h ---- a/gfx/graphite2/src/inc/GlyphFace.h -+++ b/gfx/graphite2/src/inc/GlyphFace.h -@@ -46,17 +46,17 @@ class GlyphFace - public: - GlyphFace(); - template<typename I> - GlyphFace(const Rect & bbox, const Position & adv, I first, const I last); - - const Position & theAdvance() const; - const Rect & theBBox() const { return m_bbox; } - const sparse & attrs() const { return m_attrs; } -- uint16 getMetric(uint8 metric) const; -+ int32 getMetric(uint8 metric) const; - - CLASS_NEW_DELETE; - private: - Rect m_bbox; // bounding box metrics in design units - Position m_advance; // Advance width and height in design units - sparse m_attrs; - }; - -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 -@@ -179,17 +179,17 @@ inline SlotMap& Machine::slotMap() const - return _map; - } - - inline Machine::status_t Machine::status() const throw() - { - return _status; - } - --inline void Machine::check_final_stack(const int32 * const sp) -+inline void Machine::check_final_stack(const stack_t * const sp) - { - stack_t const * const base = _stack + STACK_GUARD, - * const limit = base + STACK_MAX; - if (sp < base) _status = stack_underflow; // This should be impossible now. - else if (sp >= limit) _status = stack_overflow; // So should this. - else if (sp != base) _status = stack_not_empty; - } - -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 -@@ -76,17 +76,17 @@ private: - void dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const; - void dumpRuleEventOutput(const FiniteStateMachine & fsm, vm::Machine & m, const Rule & r, Slot * os) const; - void adjustSlot(int delta, Slot * & slot_out, SlotMap &) const; - 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 resolveKern(Segment *seg, Slot *slot, Slot *start, 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; -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 -@@ -97,17 +97,17 @@ bool State::empty() const - return rules_end == rules; - } - - - class SlotMap - { - public: - enum {MAX_SLOTS=64}; -- SlotMap(Segment & seg, uint8 direction); -+ SlotMap(Segment & seg, uint8 direction, int maxSize); - - Slot * * begin(); - Slot * * end(); - size_t size() const; - unsigned short context() const; - void reset(Slot &, unsigned short); - - Slot * const & operator[](int n) const; -@@ -116,23 +116,25 @@ public: - 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; } -+ int decMax() { return --m_maxSize; } - - Segment & segment; - private: - Slot * m_slot_map[MAX_SLOTS+1]; - unsigned short m_size; - unsigned short m_precontext; - Slot * m_highwater; -+ int m_maxSize; - uint8 m_dir; - bool m_highpassed; - }; - - - class FiniteStateMachine - { - public: -@@ -237,18 +239,19 @@ void FiniteStateMachine::Rules::accumula - return; - } - } - while (rre != rrend && out != lrend) { *out++ = *rre++; } - m_end = out; - } - - inline --SlotMap::SlotMap(Segment & seg, uint8 direction) --: segment(seg), m_size(0), m_precontext(0), m_highwater(0), m_dir(direction), m_highpassed(false) -+SlotMap::SlotMap(Segment & seg, uint8 direction, int maxSize) -+: segment(seg), m_size(0), m_precontext(0), m_highwater(0), -+ m_maxSize(maxSize), 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/Segment.h b/gfx/graphite2/src/inc/Segment.h ---- a/gfx/graphite2/src/inc/Segment.h -+++ b/gfx/graphite2/src/inc/Segment.h -@@ -35,17 +35,17 @@ of the License or (at your option) any l - #include "inc/FeatureVal.h" - #include "inc/GlyphCache.h" - #include "inc/GlyphFace.h" - #include "inc/Slot.h" - #include "inc/Position.h" - #include "inc/List.h" - #include "inc/Collider.h" - --#define MAX_SEG_GROWTH_FACTOR 256 -+#define MAX_SEG_GROWTH_FACTOR 64 - - namespace graphite2 { - - typedef Vector<Features> FeatureList; - typedef Vector<Slot *> SlotRope; - typedef Vector<int16 *> AttributeRope; - typedef Vector<SlotJustify *> JustifyRope; - -@@ -154,17 +154,17 @@ public: - 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); } -+ bool hasCollisionInfo() const { return (m_flags & SEG_HASCOLLISIONS) && m_collisions; } - 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 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(); -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 -@@ -92,17 +92,17 @@ public: - 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, bool rtl, bool isFinal); -+ Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal, int depth = 0); - 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; } -@@ -123,20 +123,19 @@ public: - 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, bool rtl); - void positionShift(Position a) { m_position += a; } -- void floodShift(Position adj); -+ void floodShift(Position adj, int depth = 0); - 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: -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 -@@ -35,16 +35,17 @@ typedef uint32 uchar_t; - - template <int N> - struct _utf_codec - { - typedef uchar_t codeunit_t; - - static void put(codeunit_t * cp, const uchar_t , int8 & len) throw(); - static uchar_t get(const codeunit_t * cp, int8 & len) throw(); -+ static bool validate(const codeunit_t * s, const codeunit_t * e) throw(); - }; - - - template <> - struct _utf_codec<32> - { - private: - static const uchar_t limit = 0x110000; -@@ -58,16 +59,22 @@ public: - } - - inline - static uchar_t get(const codeunit_t * cp, int8 & l) throw() - { - if (cp[0] < limit) { l = 1; return cp[0]; } - else { l = -1; return 0xFFFD; } - } -+ -+ inline -+ static bool validate(codeunit_t * s, codeunit_t * e) throw() -+ { -+ return e > s; -+ } - }; - - - template <> - struct _utf_codec<16> - { - private: - static const int32 lead_offset = 0xD800 - (0x10000 >> 10); -@@ -88,22 +95,31 @@ public: - } - - inline - static uchar_t get(const codeunit_t * cp, int8 & l) throw() - { - const uint32 uh = cp[0]; - l = 1; - -- if (0xD800 > uh || uh > 0xDFFF) { return uh; } -+ if (uh < 0xD800|| uh > 0xDFFF) { return uh; } - const uint32 ul = cp[1]; -- if (uh > 0xDBFF || 0xDC00 > ul || ul > 0xDFFF) { l = -1; return 0xFFFD; } -+ if (uh > 0xDBFF || ul < 0xDC00 || ul > 0xDFFF) { l = -1; return 0xFFFD; } - ++l; - return (uh<<10) + ul + surrogate_offset; - } -+ -+ inline -+ static bool validate(codeunit_t * s, codeunit_t * e) throw() -+ { -+ const ptrdiff_t n = e-s; -+ if (n <= 0) return n == 0; -+ const uint32 u = *(s+(n-1)); // Get the last codepoint -+ return (u < 0xD800 || u > 0xDBFF); -+ } - }; - - - template <> - struct _utf_codec<8> - { - private: - static const int8 sz_lut[16]; -@@ -143,16 +159,34 @@ public: - - if (l != seq_sz || toolong) - { - l = -l; - return 0xFFFD; - } - return u; - } -+ -+ inline -+ static bool validate(codeunit_t * s, codeunit_t * e) throw() -+ { -+ const ptrdiff_t n = e-s; -+ if (n <= 0) return n == 0; -+ s += (n-1); -+ if (*s < 0x80) return true; -+ if (*s >= 0xC0) return false; -+ if (n == 1) return true; -+ if (*--s < 0x80) return true; -+ if (*s >= 0xe0) return false; -+ if (n == 2 || *s >= 0xC0) return true; -+ if (*--s < 0x80) return true; -+ if (*s >= 0xF0) return false; -+ return true; -+ } -+ - }; - - - template <typename C> - class _utf_iterator - { - typedef _utf_codec<sizeof(C)*8> codec; - -@@ -195,16 +229,21 @@ public: - - template <typename C> - struct utf - { - typedef typename _utf_codec<sizeof(C)*8>::codeunit_t codeunit_t; - - typedef _utf_iterator<C> iterator; - typedef _utf_iterator<const C> const_iterator; -+ -+ inline -+ static bool validate(codeunit_t * s, codeunit_t * e) throw() { -+ return _utf_codec<sizeof(C)*8>::validate(s,e); -+ } - }; - - - typedef utf<uint32> utf32; - typedef utf<uint16> utf16; - typedef utf<uint8> utf8; - - } // namespace graphite2 -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 -@@ -113,13 +113,13 @@ static const opcode_t opcode_table[] = - {{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"}, -+ {{do_(set_feat), NILOP}, 2, "SET_FEAT"}, // featidx slot - // 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 -@@ -62,17 +62,18 @@ of the License or (at your option) any l - // 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 binop(op) const uint32 a = pop(); *sp = uint32(*sp) op a -+#define sbinop(op) const int32 a = pop(); *sp = int32(*sp) op a - #define use_params(n) dp += n - - #define declare_params(n) const byte * param = dp; \ - use_params(n); - - #define push(n) { *++sp = n; } - #define pop() (*sp--) - #define slotat(x) (map[(x)]) -@@ -125,17 +126,17 @@ STARTOP(sub) - ENDOP - - STARTOP(mul) - binop(*); - ENDOP - - STARTOP(div_) - if (*sp == 0) DIE; -- binop(/); -+ sbinop(/); - ENDOP - - STARTOP(min_) - const int32 a = pop(), b = *sp; - if (a < b) *sp = a; - ENDOP - - STARTOP(max_) -@@ -176,29 +177,29 @@ STARTOP(equal) - binop(==); - ENDOP - - STARTOP(not_eq_) - binop(!=); - ENDOP - - STARTOP(less) -- binop(<); -+ sbinop(<); - ENDOP - - STARTOP(gtr) -- binop(>); -+ sbinop(>); - ENDOP - - STARTOP(less_eq) -- binop(<=); -+ sbinop(<=); - ENDOP - - STARTOP(gtr_eq) -- binop(>=); -+ sbinop(>=); - ENDOP - - STARTOP(next) - if (map - &smap[0] >= int(smap.size())) DIE - if (is) - { - if (is == smap.highwater()) - smap.highpassed(true); -@@ -237,17 +238,17 @@ 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) -+ if (is && !is->isDeleted()) - { - slotref ref = slotat(slot_ref); - if (ref && ref != is) - { - int16 *tempUserAttrs = is->userAttrs(); - if (is->attachedTo() || is->firstChild()) DIE - Slot *prev = is->prev(); - Slot *next = is->next(); -@@ -262,16 +263,17 @@ STARTOP(put_copy) - is->attachedTo()->child(is); - } - is->markCopied(false); - is->markDeleted(false); - } - ENDOP - - STARTOP(insert) -+ if (smap.decMax() <= 0) DIE; - Slot *newSlot = seg.newSlot(); - if (!newSlot) DIE; - Slot *iss = is; - while (iss && iss->isDeleted()) iss = iss->next(); - if (!iss) - { - if (seg.last()) - { -@@ -550,31 +552,31 @@ 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), dir); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir()); - 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), dir); -+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir()); - 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); - |