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comparison src/audio/dc/SDL_dcaudio.c @ 3851:405a192b68e7 SDL-1.2

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Backport from 1.3: most of the audio drivers can now handle data conversion at a higher level when they can't open the hardware in the exact format requested.
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 01 Sep 2006 22:50:24 +0000
parents 11134dc42da8
children 5b5e549382b3
comparison
equal deleted inserted replaced
3850:28db418c7573 3851:405a192b68e7
199 } 199 }
200 } 200 }
201 201
202 static int DCAUD_OpenAudio(_THIS, SDL_AudioSpec *spec) 202 static int DCAUD_OpenAudio(_THIS, SDL_AudioSpec *spec)
203 { 203 {
204 switch(spec->format&0xff) { 204 SDL_AudioFormat test_format = SDL_FirstAudioFormat(spec->format);
205 case 8: spec->format = AUDIO_S8; break; 205 int valid_datatype = 0;
206 case 16: spec->format = AUDIO_S16LSB; break; 206 while ((!valid_datatype) && (test_format)) {
207 default: 207 spec->format = test_format;
208 SDL_SetError("Unsupported audio format"); 208 switch (test_format) {
209 return(-1); 209 /* only formats Dreamcast accepts... */
210 } 210 case AUDIO_S8:
211 case AUDIO_S16LSB:
212 valid_datatype = 1;
213 break;
214
215 default:
216 test_format = SDL_NextAudioFormat();
217 break;
218 }
219 }
220
221 if (!valid_datatype) { /* shouldn't happen, but just in case... */
222 SDL_SetError("Unsupported audio format");
223 return (-1);
224 }
225
226 if (spec->channels > 2)
227 spec->channels = 2; /* no more than stereo on the Dreamcast. */
211 228
212 /* Update the fragment size as size in bytes */ 229 /* Update the fragment size as size in bytes */
213 SDL_CalculateAudioSpec(spec); 230 SDL_CalculateAudioSpec(spec);
214 231
215 /* Allocate mixing buffer */ 232 /* Allocate mixing buffer */