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Change sdl audio to not play until the first pitch is sent

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Bad Diode 2023-10-19 12:06:47 +02:00 committed by neauoire
parent 1d7c96dd3d
commit 9c8ae94825
2 changed files with 7 additions and 7 deletions
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11
src/devices/audio.c
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@ -15,7 +15,6 @@ WITH REGARD TO THIS SOFTWARE.
*/ */
#define SOUND_TIMER (AUDIO_BUFSIZE / SAMPLE_FREQUENCY * 1000.0f) #define SOUND_TIMER (AUDIO_BUFSIZE / SAMPLE_FREQUENCY * 1000.0f)
#define N_CHANNELS 4
#define XFADE_SAMPLES 100 #define XFADE_SAMPLES 100
#define INTERPOL_METHOD 1 #define INTERPOL_METHOD 1
@ -54,7 +53,7 @@ typedef struct AudioChannel {
float vol_r; float vol_r;
} AudioChannel; } AudioChannel;
AudioChannel channel[N_CHANNELS]; AudioChannel channel[POLYPHONY];
const float tuning[109] = { const float tuning[109] = {
0.00058853f, 0.00062352f, 0.00066060f, 0.00069988f, 0.00074150f, 0.00058853f, 0.00062352f, 0.00066060f, 0.00069988f, 0.00074150f,
@ -117,10 +116,10 @@ note_on(AudioChannel *channel, Uint16 duration, Uint8 *data, Uint16 len, Uint8 v
sample.data = data; sample.data = data;
sample.len = len; sample.len = len;
sample.pos = 0; sample.pos = 0;
sample.env.a = attack * 62.0f; sample.env.a = attack * 64.0f;
sample.env.d = decay * 62.0f; sample.env.d = decay * 64.0f;
sample.env.s = sustain / 16.0f; sample.env.s = sustain / 16.0f;
sample.env.r = release * 62.0f; sample.env.r = release * 64.0f;
if (loop) { if (loop) {
sample.loop = len; sample.loop = len;
} else { } else {
@ -238,7 +237,7 @@ audio_handler(void *ctx, Uint8 *out_stream, int len) {
memset(stream, 0x00, len); memset(stream, 0x00, len);
int n; int n;
for (n = 0; n < N_CHANNELS; n++) { for (n = 0; n < POLYPHONY; n++) {
Uint8 device = (3 + n) << 4; Uint8 device = (3 + n) << 4;
Uxn *u = (Uxn *)ctx; Uxn *u = (Uxn *)ctx;
Uint8 *addr = &u->dev[device]; Uint8 *addr = &u->dev[device];

3
src/uxnemu.c
View file

@ -90,6 +90,7 @@ audio_deo(int instance, Uint8 *d, Uint8 port, Uxn *u)
SDL_LockAudioDevice(audio_id); SDL_LockAudioDevice(audio_id);
audio_start(instance, d, u); audio_start(instance, d, u);
SDL_UnlockAudioDevice(audio_id); SDL_UnlockAudioDevice(audio_id);
SDL_PauseAudioDevice(audio_id, 0);
} }
} }
@ -266,7 +267,7 @@ emu_init(Uxn *u)
deadline_interval = ms_interval * TIMEOUT_MS; deadline_interval = ms_interval * TIMEOUT_MS;
exec_deadline = SDL_GetPerformanceCounter() + deadline_interval; exec_deadline = SDL_GetPerformanceCounter() + deadline_interval;
screen_resize(WIDTH, HEIGHT); screen_resize(WIDTH, HEIGHT);
SDL_PauseAudioDevice(audio_id, 0); SDL_PauseAudioDevice(audio_id, 1);
return 1; return 1;
} }