static int Audio_Available(void) { const char *envr = SDL_getenv("SDL_AUDIODRIVER"); if ((envr) && (SDL_strcmp(envr, MINT_AUDIO_DRIVER_NAME)!=0)) { DEBUG_PRINT((DEBUG_NAME "user asked a different audio driver\n")); return(0); } if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) { cookie_snd = SND_PSG; } if ((cookie_snd & SND_16BIT)==0) { DEBUG_PRINT((DEBUG_NAME "no 16 bits sound\n")); return(0); } cookie_gsxb = (Getcookie(C_GSXB, &cookie_gsxb) == C_FOUND); if (((cookie_snd & SND_GSXB)==0) || (cookie_gsxb==0)) { DEBUG_PRINT((DEBUG_NAME "no GSXB audio\n")); return(0); } if (Locksnd()!=1) { DEBUG_PRINT((DEBUG_NAME "audio locked by other application\n")); return(0); } Unlocksnd(); DEBUG_PRINT((DEBUG_NAME "GSXB audio available!\n")); return(1); }
static int Mint_OpenAudio(_THIS, SDL_AudioSpec *spec) { if (Locksnd()!=1) { SDL_SetError("Mint_OpenAudio: Audio system already in use"); return(-1); } SDL_MintAudio_device = this; if (Mint_CheckAudio(this, spec)==-1) { return -1; } SDL_CalculateAudioSpec(spec); DEBUG_PRINT((DEBUG_NAME "buffer size=%d\n", spec->size)); SDL_MintAudio_audiobuf[0] = Atari_SysMalloc(spec->size *2, MX_STRAM); if (SDL_MintAudio_audiobuf[0]==NULL) { SDL_SetError("MINT_OpenAudio: Not enough memory for audio buffer"); return (-1); } SDL_MintAudio_audiobuf[1] = SDL_MintAudio_audiobuf[0] + spec->size ; SDL_MintAudio_numbuf=0; SDL_memset(SDL_MintAudio_audiobuf[0], spec->silence, spec->size *2); SDL_MintAudio_audiosize = spec->size; SDL_MintAudio_mutex = 0; DEBUG_PRINT((DEBUG_NAME "buffer 0 at 0x%08x\n", SDL_MintAudio_audiobuf[0])); DEBUG_PRINT((DEBUG_NAME "buffer 1 at 0x%08x\n", SDL_MintAudio_audiobuf[1])); SDL_MintAudio_CheckFpu(); Mint_InitAudio(this, spec); return(1); }
static int Audio_Available(void) { unsigned long dummy; const char *envr = SDL_getenv("SDL_AUDIODRIVER"); /*SDL_MintAudio_mint_present = (Getcookie(C_MiNT, &dummy) == C_FOUND);*/ SDL_MintAudio_mint_present = SDL_FALSE; /* We can't use XBIOS in interrupt with Magic, don't know about thread */ if (Getcookie(C_MagX, &dummy) == C_FOUND) { return(0); } /* Check if user asked a different audio driver */ if ((envr) && (SDL_strcmp(envr, MINT_AUDIO_DRIVER_NAME)!=0)) { DEBUG_PRINT((DEBUG_NAME "user asked a different audio driver\n")); return(0); } /* Cookie _SND present ? if not, assume ST machine */ if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) { cookie_snd = SND_PSG; } /* Check if we have 16 bits audio */ if ((cookie_snd & SND_16BIT)==0) { DEBUG_PRINT((DEBUG_NAME "no 16 bits sound\n")); return(0); } /* Check if audio is lockable */ if (Locksnd()!=1) { DEBUG_PRINT((DEBUG_NAME "audio locked by other application\n")); return(0); } Unlocksnd(); DEBUG_PRINT((DEBUG_NAME "XBIOS audio available!\n")); return(1); }
static int Mint_OpenAudio(_THIS, SDL_AudioSpec *spec) { /* Lock sound system */ if (Locksnd()!=1) { SDL_SetError("Mint_OpenAudio: Audio system already in use"); return(-1); } SDL_MintAudio_device = this; /* Check audio capabilities */ if (Mint_CheckAudio(this, spec)==-1) { return -1; } SDL_CalculateAudioSpec(spec); /* Allocate memory for audio buffers in DMA-able RAM */ DEBUG_PRINT((DEBUG_NAME "buffer size=%d\n", spec->size)); SDL_MintAudio_audiobuf[0] = Atari_SysMalloc(spec->size *2, MX_STRAM); if (SDL_MintAudio_audiobuf[0]==NULL) { SDL_SetError("MINT_OpenAudio: Not enough memory for audio buffer"); return (-1); } SDL_MintAudio_audiobuf[1] = SDL_MintAudio_audiobuf[0] + spec->size ; SDL_MintAudio_numbuf=0; SDL_memset(SDL_MintAudio_audiobuf[0], spec->silence, spec->size *2); SDL_MintAudio_audiosize = spec->size; SDL_MintAudio_mutex = 0; DEBUG_PRINT((DEBUG_NAME "buffer 0 at 0x%08x\n", SDL_MintAudio_audiobuf[0])); DEBUG_PRINT((DEBUG_NAME "buffer 1 at 0x%08x\n", SDL_MintAudio_audiobuf[1])); SDL_MintAudio_CheckFpu(); /* Setup audio hardware */ Mint_InitAudio(this, spec); return(1); /* We don't use SDL threaded audio */ }
static int Audio_Available(void) { const char *envr = getenv("SDL_AUDIODRIVER"); /* Check if user asked a different audio driver */ if ((envr) && (strcmp(envr, MINT_AUDIO_DRIVER_NAME)!=0)) { DEBUG_PRINT((DEBUG_NAME "user asked a different audio driver\n")); return(0); } /* Cookie _SND present ? if not, assume ST machine */ if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) { cookie_snd = SND_PSG; } /* Check if we have 16 bits audio */ if ((cookie_snd & SND_16BIT)==0) { DEBUG_PRINT((DEBUG_NAME "no 16 bits sound\n")); return(0); } /* Cookie GSXB present ? */ cookie_gsxb = (Getcookie(C_GSXB, &cookie_gsxb) == C_FOUND); /* Is it GSXB ? */ if (((cookie_snd & SND_GSXB)==0) || (cookie_gsxb==0)) { DEBUG_PRINT((DEBUG_NAME "no GSXB audio\n")); return(0); } /* Check if audio is lockable */ if (Locksnd()!=1) { DEBUG_PRINT((DEBUG_NAME "audio locked by other application\n")); return(0); } Unlocksnd(); DEBUG_PRINT((DEBUG_NAME "GSXB audio available!\n")); return(1); }
static int Audio_Available(void) { const char *envr = SDL_getenv("SDL_AUDIODRIVER"); /* Check if user asked a different audio driver */ if ((envr) && (SDL_strcmp(envr, MINT_AUDIO_DRIVER_NAME)!=0)) { DEBUG_PRINT((DEBUG_NAME "user asked a different audio driver\n")); return 0; } /* Cookie _MCH present ? if not, assume ST machine */ if (Getcookie(C__MCH, &cookie_mch) == C_NOTFOUND) { cookie_mch = MCH_ST; } /* Cookie _SND present ? if not, assume ST machine */ if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) { cookie_snd = SND_PSG; } /* Check if we have 8 bits audio */ if ((cookie_snd & SND_8BIT)==0) { DEBUG_PRINT((DEBUG_NAME "no 8 bits sound\n")); return(0); } /* Check if audio is lockable */ if (cookie_snd & SND_16BIT) { if (Locksnd()!=1) { DEBUG_PRINT((DEBUG_NAME "audio locked by other application\n")); return(0); } Unlocksnd(); } DEBUG_PRINT((DEBUG_NAME "8 bits audio available!\n")); return(1); }