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| -rw-r--r-- | COPYING | 165 | ||||
| -rw-r--r-- | build.zig | 17 | ||||
| -rw-r--r-- | src/alc.zig | 93 | ||||
| -rw-r--r-- | src/main.zig | 15 |
4 files changed, 290 insertions, 0 deletions
diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..0a04128 --- /dev/null +++ b/COPYING @@ -0,0 +1,165 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + + This version of the GNU Lesser General Public License incorporates +the terms and conditions of version 3 of the GNU General Public +License, supplemented by the additional permissions listed below. + + 0. Additional Definitions. + + As used herein, "this License" refers to version 3 of the GNU Lesser +General Public License, and the "GNU GPL" refers to version 3 of the GNU +General Public License. + + "The Library" refers to a covered work governed by this License, +other than an Application or a Combined Work as defined below. + + An "Application" is any work that makes use of an interface provided +by the Library, but which is not otherwise based on the Library. +Defining a subclass of a class defined by the Library is deemed a mode +of using an interface provided by the Library. + + A "Combined Work" is a work produced by combining or linking an +Application with the Library. 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Such new +versions will be similar in spirit to the present version, but may +differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. diff --git a/build.zig b/build.zig new file mode 100644 index 0000000..fabc680 --- /dev/null +++ b/build.zig @@ -0,0 +1,17 @@ +const std = @import("std"); + +pub fn build(b: *std.build.Builder) void { + // Standard release options allow the person running `zig build` to select + // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. + const mode = b.standardReleaseOptions(); + + const lib = b.addStaticLibrary("zeal", "src/main.zig"); + lib.setBuildMode(mode); + lib.install(); + + var main_tests = b.addTest("src/main.zig"); + main_tests.setBuildMode(mode); + + const test_step = b.step("test", "Run library tests"); + test_step.dependOn(&main_tests.step); +} diff --git a/src/alc.zig b/src/alc.zig new file mode 100644 index 0000000..3a6d9a8 --- /dev/null +++ b/src/alc.zig @@ -0,0 +1,93 @@ +// Audio Library Context wrapper +// Copyright (C) 2021 Nguyễn Gia Phong +// +// This file is part of zeal. +// +// Zeal 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 3 of the License, or +// (at your option) any later version. +// +// Zeal 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 have received a copy of the GNU Lesser General Public License +// along with zeal. If not, see <https://www.gnu.org/licenses/>. + +usingnamespace @cImport({ @cInclude("AL/alc.h"); }); + +pub const Device = ALCdevice; +pub const Context = ALCcontext; +pub const Error = error { + InvalidDevice, + InvalidContext, + InvalidEnum, + InvalidValue, + OutOfMemory, +}; + +/// Create and attach a context to the given device. +pub fn createContext(device: *Device, attrlist: [*c]const ALCint) !*Context { + if (alcCreateContext(device, attrlist)) |context| + return context; + return switch (alcGetError(device)) { + ALC_INVALID_DEVICE => Error.InvalidDevice, + ALC_INVALID_VALUE => Error.InvalidValue, + else => unreachable, + }; +} + +/// Make the given context the active process-wide context. +/// Passing NULL clears the active context. +pub fn makeContextCurrent(context: ?*Context) !void { + if (alcMakeContextCurrent(context) == ALC_TRUE) + return; + if (alcGetError(null) == ALC_INVALID_CONTEXT) + return Error.InvalidContext; + unreachable; +} + +/// Remove a context from its device and destroys it. +pub fn destroyContext(context: *Context) !void { + alcDestroyContext(context); + if (alcGetError(null) == ALC_INVALID_CONTEXT) + return Error.InvalidContext; +} + +/// Returns the currently active context. +pub fn getCurrentContext() *Context { + if (alcGetCurrentContext()) |context| + return context; + unreachable; +} + +/// Return the device that a particular context is attached to. +pub fn getContextsDevice(context: *Context) !*Device { + if (alcGetContextsDevice(context)) |device| + return device; + if (alcGetError(null) == ALC_INVALID_CONTEXT) + return Error.InvalidContext; + unreachable; +} + +/// Open the named playback device. +pub fn openDevice(devicename: [*c]const u8) !*Device { + if (alcOpenDevice(devicename)) |device| + return device; + return switch (alcGetError(null)) { + ALC_INVALID_VALUE => Error.InvalidValue, + ALC_OUT_OF_MEMORY => Error.OutOfMemory, + else => unreachable, + }; +} + +/// Close the given playback device. +pub fn closeDevice(device: *Device) !void { + if (alcCloseDevice(device) == ALC_TRUE) + return; + if (alcGetError(device) == ALC_INVALID_DEVICE) + return Error.InvalidDevice; + unreachable; +} diff --git a/src/main.zig b/src/main.zig new file mode 100644 index 0000000..a47a8ba --- /dev/null +++ b/src/main.zig @@ -0,0 +1,15 @@ +const alc = @import("alc.zig"); + +fn init() !void { + const device = try alc.openDevice(null); + const context = try alc.createContext(device, null); + try alc.makeContextCurrent(context); +} + +fn deinit() !void { + const context = alc.getCurrentContext(); + const device = try alc.getContextsDevice(context); + try alc.makeContextCurrent(null); + try alc.destroyContext(context); + try alc.closeDevice(device); +} |