Mercurial > sdl-ios-xcode
comparison src/audio/mint/SDL_mintaudio_mcsn.c @ 1107:856f76a099c7
Can use both clocks of FDI interface on Falcon, plus digital output
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Sun, 07 Aug 2005 12:17:28 +0000 |
| parents | 524fd51f5d2c |
| children | 12c49532be00 |
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| 1106:524fd51f5d2c | 1107:856f76a099c7 |
|---|---|
| 231 MINTAUDIO_freqcount=0; | 231 MINTAUDIO_freqcount=0; |
| 232 switch(cookie_mcsn->play) { | 232 switch(cookie_mcsn->play) { |
| 233 case MCSN_ST: | 233 case MCSN_ST: |
| 234 spec->channels=1; | 234 spec->channels=1; |
| 235 spec->format=8; /* FIXME: is it signed or unsigned ? */ | 235 spec->format=8; /* FIXME: is it signed or unsigned ? */ |
| 236 SDL_MintAudio_AddFrequency(this, 12500, 0, 0); | 236 SDL_MintAudio_AddFrequency(this, 12500, 0, 0, -1); |
| 237 break; | 237 break; |
| 238 case MCSN_TT: /* Also STE, Mega STE */ | 238 case MCSN_TT: /* Also STE, Mega STE */ |
| 239 spec->format=AUDIO_S8; | 239 spec->format=AUDIO_S8; |
| 240 masterclock=MASTERCLOCK_STE; | 240 masterclock=MASTERCLOCK_STE; |
| 241 masterprediv=MASTERPREDIV_STE; | 241 masterprediv=MASTERPREDIV_STE; |
| 242 if ((cookie_mch>>16)==MCH_TT) { | 242 if ((cookie_mch>>16)==MCH_TT) { |
| 243 masterclock=MASTERCLOCK_TT; | 243 masterclock=MASTERCLOCK_TT; |
| 244 masterprediv=MASTERPREDIV_TT; | 244 masterprediv=MASTERPREDIV_TT; |
| 245 } | 245 } |
| 246 for (i=0; i<4; i++) { | 246 for (i=0; i<4; i++) { |
| 247 SDL_MintAudio_AddFrequency(this, masterclock/(masterprediv*(1<<i)), masterclock, 3-i); | 247 SDL_MintAudio_AddFrequency(this, masterclock/(masterprediv*(1<<i)), |
| 248 masterclock, 3-i, -1); | |
| 248 } | 249 } |
| 249 break; | 250 break; |
| 250 case MCSN_FALCON: /* Also Mac */ | 251 case MCSN_FALCON: /* Also Mac */ |
| 251 for (i=1; i<12; i++) { | 252 for (i=1; i<12; i++) { |
| 252 /* Remove unusable Falcon codec predivisors */ | 253 /* Remove unusable Falcon codec predivisors */ |
| 253 if ((i==6) || (i==8) || (i==10)) { | 254 if ((i==6) || (i==8) || (i==10)) { |
| 254 continue; | 255 continue; |
| 255 } | 256 } |
| 256 SDL_MintAudio_AddFrequency(this, MASTERCLOCK_FALCON1/(MASTERPREDIV_FALCON*(i+1)), CLK25M, i+1); | 257 SDL_MintAudio_AddFrequency(this, MASTERCLOCK_FALCON1/(MASTERPREDIV_FALCON*(i+1)), |
| 258 CLK25M, i+1, -1); | |
| 257 } | 259 } |
| 258 if (cookie_mcsn->res1 != 0) { | 260 if (cookie_mcsn->res1 != 0) { |
| 259 for (i=1; i<4; i++) { | 261 for (i=1; i<4; i++) { |
| 260 SDL_MintAudio_AddFrequency(this, (cookie_mcsn->res1)/(MASTERPREDIV_FALCON*(1<<i)), CLKEXT, (1<<i)-1); | 262 SDL_MintAudio_AddFrequency(this, (cookie_mcsn->res1)/(MASTERPREDIV_FALCON*(1<<i)), |
| 263 CLKEXT, (1<<i)-1, -1); | |
| 261 } | 264 } |
| 262 } | 265 } |
| 263 spec->format |= 0x8000; /* Audio is always signed */ | 266 spec->format |= 0x8000; /* Audio is always signed */ |
| 264 if ((spec->format & 0x00ff)==16) { | 267 if ((spec->format & 0x00ff)==16) { |
| 265 spec->format |= 0x1000; /* Audio is always big endian */ | 268 spec->format |= 0x1000; /* Audio is always big endian */ |