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comparison src/audio/mint/SDL_mintaudio.c @ 1034:2eca15c3f609

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clear convert.buf before filling it
author Patrice Mandin <patmandin@gmail.com>
date Sat, 29 Jan 2005 09:58:40 +0000
parents 185acc07127a
children 856f76a099c7
comparison
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1033:aebfa3ce2a53 1034:2eca15c3f609
47 /* The callback function, called by each driver whenever needed */ 47 /* The callback function, called by each driver whenever needed */
48 48
49 void SDL_MintAudio_Callback(void) 49 void SDL_MintAudio_Callback(void)
50 { 50 {
51 Uint8 *buffer; 51 Uint8 *buffer;
52 SDL_AudioDevice *audio = SDL_MintAudio_device;
52 53
53 buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf]; 54 buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
54 memset(buffer, SDL_MintAudio_device->spec.silence, SDL_MintAudio_device->spec.size); 55 memset(buffer, audio->spec.silence, audio->spec.size);
55 56
56 if ( ! SDL_MintAudio_device->paused ) { 57 if (audio->paused)
57 if ( SDL_MintAudio_device->convert.needed ) { 58 return;
58 SDL_MintAudio_device->spec.callback(SDL_MintAudio_device->spec.userdata, 59
59 (Uint8 *)SDL_MintAudio_device->convert.buf,SDL_MintAudio_device->convert.len); 60 if (audio->convert.needed) {
60 SDL_ConvertAudio(&SDL_MintAudio_device->convert); 61 int silence;
61 memcpy(buffer, SDL_MintAudio_device->convert.buf, SDL_MintAudio_device->convert.len_cvt); 62
63 if ( audio->convert.src_format == AUDIO_U8 ) {
64 silence = 0x80;
62 } else { 65 } else {
63 SDL_MintAudio_device->spec.callback(SDL_MintAudio_device->spec.userdata, buffer, SDL_MintAudio_device->spec.size); 66 silence = 0;
64 } 67 }
68 memset(audio->convert.buf, silence, audio->convert.len);
69 audio->spec.callback(audio->spec.userdata,
70 (Uint8 *)audio->convert.buf,audio->convert.len);
71 SDL_ConvertAudio(&audio->convert);
72 memcpy(buffer, audio->convert.buf, audio->convert.len_cvt);
73 } else {
74 audio->spec.callback(audio->spec.userdata, buffer, audio->spec.size);
65 } 75 }
66 } 76 }
67 77
68 /* Add a new frequency/clock/predivisor to the current list */ 78 /* Add a new frequency/clock/predivisor to the current list */
69 void SDL_MintAudio_AddFrequency(_THIS, Uint32 frequency, Uint32 clock, Uint32 prediv) 79 void SDL_MintAudio_AddFrequency(_THIS, Uint32 frequency, Uint32 clock, Uint32 prediv)