From d8239786b306ffda6d5d73753d01f0ad3358e1a0 Mon Sep 17 00:00:00 2001 From: Jesse Hall Date: Tue, 17 Jul 2012 16:58:55 -0700 Subject: Delete sdl-1.2.12 Change-Id: Ia96f80df04035ae84be3af468c945f2cec14f99c --- .../sdl-1.2.12/src/audio/mint/SDL_mintaudio_gsxb.c | 436 --------------------- 1 file changed, 436 deletions(-) delete mode 100644 distrib/sdl-1.2.12/src/audio/mint/SDL_mintaudio_gsxb.c (limited to 'distrib/sdl-1.2.12/src/audio/mint/SDL_mintaudio_gsxb.c') diff --git a/distrib/sdl-1.2.12/src/audio/mint/SDL_mintaudio_gsxb.c b/distrib/sdl-1.2.12/src/audio/mint/SDL_mintaudio_gsxb.c deleted file mode 100644 index 41f78c9..0000000 --- a/distrib/sdl-1.2.12/src/audio/mint/SDL_mintaudio_gsxb.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2004 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License as published by the Free Software Foundation; either - version 2 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with this library; if not, write to the Free - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -/* - MiNT audio driver - using XBIOS functions (GSXB compatible driver) - - Patrice Mandin -*/ - -/* Mint includes */ -#include -#include -#include - -#include "SDL_audio.h" -#include "../SDL_audio_c.h" -#include "../SDL_sysaudio.h" - -#include "../../video/ataricommon/SDL_atarimxalloc_c.h" - -#include "SDL_mintaudio.h" -#include "SDL_mintaudio_gsxb.h" - -/*--- Defines ---*/ - -#define MINT_AUDIO_DRIVER_NAME "mint_gsxb" - -/* Debug print info */ -#define DEBUG_NAME "audio:gsxb: " -#if 0 -#define DEBUG_PRINT(what) \ - { \ - printf what; \ - } -#else -#define DEBUG_PRINT(what) -#endif - -/*--- Static variables ---*/ - -static unsigned long cookie_snd, cookie_gsxb; - -/*--- Audio driver functions ---*/ - -static void Mint_CloseAudio(_THIS); -static int Mint_OpenAudio(_THIS, SDL_AudioSpec *spec); -static void Mint_LockAudio(_THIS); -static void Mint_UnlockAudio(_THIS); - -/* To check/init hardware audio */ -static int Mint_CheckAudio(_THIS, SDL_AudioSpec *spec); -static void Mint_InitAudio(_THIS, SDL_AudioSpec *spec); - -/* GSXB callbacks */ -static void Mint_GsxbInterrupt(void); -static void Mint_GsxbNullInterrupt(void); - -/*--- Audio driver bootstrap functions ---*/ - -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 _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 void Audio_DeleteDevice(SDL_AudioDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} - -static SDL_AudioDevice *Audio_CreateDevice(int devindex) -{ - SDL_AudioDevice *this; - - /* Initialize all variables that we clean on shutdown */ - this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice)); - if ( this ) { - SDL_memset(this, 0, (sizeof *this)); - this->hidden = (struct SDL_PrivateAudioData *) - SDL_malloc((sizeof *this->hidden)); - } - if ( (this == NULL) || (this->hidden == NULL) ) { - SDL_OutOfMemory(); - if ( this ) { - SDL_free(this); - } - return(0); - } - SDL_memset(this->hidden, 0, (sizeof *this->hidden)); - - /* Set the function pointers */ - this->OpenAudio = Mint_OpenAudio; - this->CloseAudio = Mint_CloseAudio; - this->LockAudio = Mint_LockAudio; - this->UnlockAudio = Mint_UnlockAudio; - this->free = Audio_DeleteDevice; - - return this; -} - -AudioBootStrap MINTAUDIO_GSXB_bootstrap = { - MINT_AUDIO_DRIVER_NAME, "MiNT GSXB audio driver", - Audio_Available, Audio_CreateDevice -}; - -static void Mint_LockAudio(_THIS) -{ - /* Stop replay */ - Buffoper(0); -} - -static void Mint_UnlockAudio(_THIS) -{ - /* Restart replay */ - Buffoper(SB_PLA_ENA|SB_PLA_RPT); -} - -static void Mint_CloseAudio(_THIS) -{ - /* Stop replay */ - Buffoper(0); - - /* Uninstall interrupt */ - if (NSetinterrupt(2, SI_NONE, Mint_GsxbNullInterrupt)<0) { - DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed in close\n")); - } - - /* Wait if currently playing sound */ - while (SDL_MintAudio_mutex != 0) { - } - - /* Clear buffers */ - if (SDL_MintAudio_audiobuf[0]) { - Mfree(SDL_MintAudio_audiobuf[0]); - SDL_MintAudio_audiobuf[0] = SDL_MintAudio_audiobuf[1] = NULL; - } - - /* Unlock sound system */ - Unlocksnd(); -} - -static int Mint_CheckAudio(_THIS, SDL_AudioSpec *spec) -{ - long snd_format; - int i, resolution, format_signed, format_bigendian; - Uint16 test_format = SDL_FirstAudioFormat(spec->format); - int valid_datatype = 0; - - resolution = spec->format & 0x00ff; - format_signed = ((spec->format & 0x8000)!=0); - format_bigendian = ((spec->format & 0x1000)!=0); - - DEBUG_PRINT((DEBUG_NAME "asked: %d bits, ",spec->format & 0x00ff)); - DEBUG_PRINT(("signed=%d, ", ((spec->format & 0x8000)!=0))); - DEBUG_PRINT(("big endian=%d, ", ((spec->format & 0x1000)!=0))); - DEBUG_PRINT(("channels=%d, ", spec->channels)); - DEBUG_PRINT(("freq=%d\n", spec->freq)); - - if (spec->channels > 2) { - spec->channels = 2; /* no more than stereo! */ - } - - while ((!valid_datatype) && (test_format)) { - /* Check formats available */ - snd_format = Sndstatus(SND_QUERYFORMATS); - spec->format = test_format; - resolution = spec->format & 0xff; - format_signed = (spec->format & (1<<15)); - format_bigendian = (spec->format & (1<<12)); - switch (test_format) { - case AUDIO_U8: - case AUDIO_S8: - if (snd_format & SND_FORMAT8) { - valid_datatype = 1; - snd_format = Sndstatus(SND_QUERY8BIT); - } - break; - - case AUDIO_U16LSB: - case AUDIO_S16LSB: - case AUDIO_U16MSB: - case AUDIO_S16MSB: - if (snd_format & SND_FORMAT16) { - valid_datatype = 1; - snd_format = Sndstatus(SND_QUERY16BIT); - } - break; - - default: - test_format = SDL_NextAudioFormat(); - break; - } - } - - if (!valid_datatype) { - SDL_SetError("Unsupported audio format"); - return (-1); - } - - /* Check signed/unsigned format */ - if (format_signed) { - if (snd_format & SND_FORMATSIGNED) { - /* Ok */ - } else if (snd_format & SND_FORMATUNSIGNED) { - /* Give unsigned format */ - spec->format = spec->format & (~0x8000); - } - } else { - if (snd_format & SND_FORMATUNSIGNED) { - /* Ok */ - } else if (snd_format & SND_FORMATSIGNED) { - /* Give signed format */ - spec->format |= 0x8000; - } - } - - if (format_bigendian) { - if (snd_format & SND_FORMATBIGENDIAN) { - /* Ok */ - } else if (snd_format & SND_FORMATLITTLEENDIAN) { - /* Give little endian format */ - spec->format = spec->format & (~0x1000); - } - } else { - if (snd_format & SND_FORMATLITTLEENDIAN) { - /* Ok */ - } else if (snd_format & SND_FORMATBIGENDIAN) { - /* Give big endian format */ - spec->format |= 0x1000; - } - } - - /* Calculate and select the closest frequency */ - MINTAUDIO_freqcount=0; - for (i=1;i<4;i++) { - SDL_MintAudio_AddFrequency(this, - MASTERCLOCK_44K/(MASTERPREDIV_MILAN*(1<freq); - spec->freq=MINTAUDIO_frequencies[MINTAUDIO_numfreq].frequency; - - DEBUG_PRINT((DEBUG_NAME "obtained: %d bits, ",spec->format & 0x00ff)); - DEBUG_PRINT(("signed=%d, ", ((spec->format & 0x8000)!=0))); - DEBUG_PRINT(("big endian=%d, ", ((spec->format & 0x1000)!=0))); - DEBUG_PRINT(("channels=%d, ", spec->channels)); - DEBUG_PRINT(("freq=%d\n", spec->freq)); - - return 0; -} - -static void Mint_InitAudio(_THIS, SDL_AudioSpec *spec) -{ - int channels_mode, prediv; - void *buffer; - - /* Stop currently playing sound */ - Buffoper(0); - - /* Set replay tracks */ - Settracks(0,0); - Setmontracks(0); - - /* Select replay format */ - switch (spec->format & 0xff) { - case 8: - if (spec->channels==2) { - channels_mode=STEREO8; - } else { - channels_mode=MONO8; - } - break; - case 16: - if (spec->channels==2) { - channels_mode=STEREO16; - } else { - channels_mode=MONO16; - } - break; - default: - channels_mode=STEREO16; - break; - } - if (Setmode(channels_mode)<0) { - DEBUG_PRINT((DEBUG_NAME "Setmode() failed\n")); - } - - prediv = MINTAUDIO_frequencies[MINTAUDIO_numfreq].predivisor; - Devconnect(DMAPLAY, DAC, CLKEXT, prediv, 1); - - /* Set buffer */ - buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf]; - if (Setbuffer(0, buffer, buffer + spec->size)<0) { - DEBUG_PRINT((DEBUG_NAME "Setbuffer() failed\n")); - } - - /* Install interrupt */ - if (NSetinterrupt(2, SI_PLAY, Mint_GsxbInterrupt)<0) { - DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed\n")); - } - - /* Go */ - Buffoper(SB_PLA_ENA|SB_PLA_RPT); - DEBUG_PRINT((DEBUG_NAME "hardware initialized\n")); -} - -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 threaded audio */ -} - -static void Mint_GsxbInterrupt(void) -{ - Uint8 *newbuf; - - if (SDL_MintAudio_mutex) - return; - - SDL_MintAudio_mutex=1; - - SDL_MintAudio_numbuf ^= 1; - SDL_MintAudio_Callback(); - newbuf = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf]; - Setbuffer(0, newbuf, newbuf + SDL_MintAudio_audiosize); - - SDL_MintAudio_mutex=0; -} - -static void Mint_GsxbNullInterrupt(void) -{ -} -- cgit v1.1