examples: cleanup obsolete unsafe{} usages in examples/sokol/sounds

This commit is contained in:
Delyan Angelov 2024-08-01 09:10:02 +03:00
parent fdd0dab1c3
commit da5dc8bb22
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3 changed files with 17 additions and 23 deletions

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@ -12,8 +12,7 @@ mut:
gg &gg.Context = unsafe { nil } // used for drawing gg &gg.Context = unsafe { nil } // used for drawing
} }
fn my_audio_stream_callback(buffer &f32, num_frames int, num_channels int, mut acontext AppState) { fn my_audio_stream_callback(mut soundbuffer &f32, num_frames int, num_channels int, mut acontext AppState) {
mut soundbuffer := unsafe { buffer }
for frame := 0; frame < num_frames; frame++ { for frame := 0; frame < num_frames; frame++ {
t := int(f32(acontext.frame_0 + frame) * 0.245) t := int(f32(acontext.frame_0 + frame) * 0.245)
// "Techno" by Gabriel Miceli // "Techno" by Gabriel Miceli
@ -21,13 +20,11 @@ fn my_audio_stream_callback(buffer &f32, num_frames int, num_channels int, mut a
(t * (((t / 640 | 0) ^ ((t / 640 | 0) - 2)) % 13) / 2 & 127) (t * (((t / 640 | 0) ^ ((t / 640 | 0) - 2)) % 13) / 2 & 127)
for ch := 0; ch < num_channels; ch++ { for ch := 0; ch < num_channels; ch++ {
idx := frame * num_channels + ch idx := frame * num_channels + ch
unsafe {
a := f32(u8(y) - 127) / 255.0 a := f32(u8(y) - 127) / 255.0
soundbuffer[idx] = a soundbuffer[idx] = a
acontext.frames[idx & 2047] = a acontext.frames[idx & 2047] = a
} }
} }
}
acontext.frame_0 += num_frames acontext.frame_0 += num_frames
} }

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@ -10,10 +10,8 @@ fn sintone(periods int, frame int, num_frames int) f32 {
return math.sinf(f32(periods) * (2 * math.pi) * f32(frame) / f32(num_frames)) return math.sinf(f32(periods) * (2 * math.pi) * f32(frame) / f32(num_frames))
} }
fn my_audio_stream_callback(buffer &f32, num_frames int, num_channels int) { fn my_audio_stream_callback(mut soundbuffer &f32, num_frames int, num_channels int) {
ms := sw.elapsed().milliseconds() - sw_start_ms ms := sw.elapsed().milliseconds() - sw_start_ms
unsafe {
mut soundbuffer := buffer
for frame := 0; frame < num_frames; frame++ { for frame := 0; frame < num_frames; frame++ {
for ch := 0; ch < num_channels; ch++ { for ch := 0; ch < num_channels; ch++ {
idx := frame * num_channels + ch idx := frame * num_channels + ch
@ -28,7 +26,6 @@ fn my_audio_stream_callback(buffer &f32, num_frames int, num_channels int) {
} }
} }
} }
}
} }
fn main() { fn main() {

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@ -37,7 +37,7 @@ fn play_sounds(files []string) ! {
} }
// //
fn audio_player_callback(buffer &f32, num_frames int, num_channels int, mut p Player) { fn audio_player_callback(mut buffer &f32, num_frames int, num_channels int, mut p Player) {
if p.finished { if p.finished {
return return
} }