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Audio: duplicate mono sounds to all channels

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Ali Chraghi 2024-05-06 10:10:11 +03:30 • committed by Stephen Gutekanst
parent 9d95fcf0c2
commit e711f69fad
3 changed files with 49 additions and 19 deletions
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2
examples/piano/App.zig
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@ -77,6 +77,7 @@ fn audioStateChange(
// Play a new sound
const entity = try audio.newEntity();
try audio.set(entity, .samples, try fillTone(audio, frequency));
try audio.set(entity, .channels, @intCast(audio.state().player.channels().len));
try audio.set(entity, .playing, true);
try audio.set(entity, .index, 0);
}
@ -116,6 +117,7 @@ fn tick(
// Play a new sound
const entity = try audio.newEntity();
try audio.set(entity, .samples, try fillTone(audio, keyToFrequency(ev.key)));
try audio.set(entity, .channels, @intCast(audio.state().player.channels().len));
try audio.set(entity, .playing, true);
try audio.set(entity, .index, 0);

14
examples/play-opus/App.zig
View file

@ -6,7 +6,7 @@ const builtin = @import("builtin");
const mach = @import("mach");
const assets = @import("assets");
const opus = @import("opus");
const Opus = @import("opus");
const gpu = mach.gpu;
const math = mach.math;
const sysaudio = mach.sysaudio;
@ -29,7 +29,7 @@ pub const components = .{
.is_bgm = .{ .type = void },
};
sfx: []const f32,
sfx: Opus,
fn init(core: *mach.Core.Mod, audio: *mach.Audio.Mod, app: *Mod) !void {
// Initialize audio module, telling it to send our module's .audio_state_change event when an
@ -40,17 +40,18 @@ fn init(core: *mach.Core.Mod, audio: *mach.Audio.Mod, app: *Mod) !void {
const sfx_fbs = std.io.fixedBufferStream(assets.sfx.death);
var sound_stream = std.io.StreamSource{ .const_buffer = bgm_fbs };
const bgm = try opus.decodeStream(gpa.allocator(), sound_stream);
const bgm = try Opus.decodeStream(gpa.allocator(), sound_stream);
sound_stream = std.io.StreamSource{ .const_buffer = sfx_fbs };
const sfx = try opus.decodeStream(gpa.allocator(), sound_stream);
const sfx = try Opus.decodeStream(gpa.allocator(), sound_stream);
// Initialize module state
app.init(.{ .sfx = sfx.samples });
app.init(.{ .sfx = sfx });
const bgm_entity = try audio.newEntity();
try app.set(bgm_entity, .is_bgm, {});
try audio.set(bgm_entity, .samples, bgm.samples);
try audio.set(bgm_entity, .channels, bgm.channels);
try audio.set(bgm_entity, .playing, true);
try audio.set(bgm_entity, .index, 0);
@ -115,7 +116,8 @@ fn tick(
else => {
// Play a new SFX
const entity = try audio.newEntity();
try audio.set(entity, .samples, app.state().sfx);
try audio.set(entity, .samples, app.state().sfx.samples);
try audio.set(entity, .channels, app.state().sfx.channels);
try audio.set(entity, .index, 0);
try audio.set(entity, .playing, true);
},