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{examples,Audio}: optimize needless setComponent calls away

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2024-05-07 22:15:34 -07:00 • committed by Stephen Gutekanst
parent 57767c2f9f
commit 6feaad630e
5 changed files with 19 additions and 15 deletions
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23
src/Audio.zig
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@ -135,37 +135,36 @@ fn audioTick(entities: *mach.Entities.Mod, audio: *Mod) !void {
var did_state_change = false;
var q = try entities.query(.{
.ids = mach.Entities.Mod.read(.id),
.samples_slices = Mod.read(.samples),
.channels = Mod.read(.channels),
.playings = Mod.read(.playing),
.indexes = Mod.read(.index),
.playings = Mod.write(.playing),
.indexes = Mod.write(.index),
});
while (q.next()) |v| {
for (v.ids, v.samples_slices, v.channels, v.playings, v.indexes) |id, samples, channels, playing, index| {
if (!playing) continue;
for (v.samples_slices, v.channels, v.playings, v.indexes) |samples, channels, *playing, *index| {
if (!playing.*) continue;
const channels_diff = player_channels - channels + 1;
const to_read = @min(samples.len - index, mixing_buffer.items.len) / channels_diff;
const to_read = @min(samples.len - index.*, mixing_buffer.items.len) / channels_diff;
if (channels == 1 and player_channels > 1) {
// Duplicate samples for mono sounds
var i: usize = 0;
for (samples[index..][0..to_read]) |sample| {
for (samples[index.*..][0..to_read]) |sample| {
mixSamplesDuplicate(mixing_buffer.items[i..][0..player_channels], sample);
i += player_channels;
}
} else {
mixSamples(mixing_buffer.items[0..to_read], samples[index..][0..to_read]);
mixSamples(mixing_buffer.items[0..to_read], samples[index.*..][0..to_read]);
}
if (index + to_read >= samples.len) {
if (index.* + to_read >= samples.len) {
// No longer playing, we've read all samples
did_state_change = true;
try audio.set(id, .playing, false);
try audio.set(id, .index, 0);
playing.* = false;
index.* = 0;
continue;
}
try audio.set(id, .index, index + to_read);
index.* = index.* + to_read;
}
}
if (audio.state().on_state_change) |on_state_change_event| {