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 --- distrib/sdl-1.2.12/src/audio/sun/SDL_sunaudio.c | 432 ------------------------ 1 file changed, 432 deletions(-) delete mode 100644 distrib/sdl-1.2.12/src/audio/sun/SDL_sunaudio.c (limited to 'distrib/sdl-1.2.12/src/audio/sun/SDL_sunaudio.c') diff --git a/distrib/sdl-1.2.12/src/audio/sun/SDL_sunaudio.c b/distrib/sdl-1.2.12/src/audio/sun/SDL_sunaudio.c deleted file mode 100644 index 5ddaba1..0000000 --- a/distrib/sdl-1.2.12/src/audio/sun/SDL_sunaudio.c +++ /dev/null @@ -1,432 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -/* Allow access to a raw mixing buffer */ - -#include -#include -#ifdef __NETBSD__ -#include -#include -#endif -#ifdef __SVR4 -#include -#else -#include -#include -#endif -#include - -#include "SDL_timer.h" -#include "SDL_audio.h" -#include "../SDL_audiomem.h" -#include "../SDL_audio_c.h" -#include "../SDL_audiodev_c.h" -#include "SDL_sunaudio.h" - -/* Open the audio device for playback, and don't block if busy */ -#define OPEN_FLAGS (O_WRONLY|O_NONBLOCK) - -/* Audio driver functions */ -static int DSP_OpenAudio(_THIS, SDL_AudioSpec *spec); -static void DSP_WaitAudio(_THIS); -static void DSP_PlayAudio(_THIS); -static Uint8 *DSP_GetAudioBuf(_THIS); -static void DSP_CloseAudio(_THIS); - -static Uint8 snd2au(int sample); - -/* Audio driver bootstrap functions */ - -static int Audio_Available(void) -{ - int fd; - int available; - - available = 0; - fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 1); - if ( fd >= 0 ) { - available = 1; - close(fd); - } - return(available); -} - -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)); - audio_fd = -1; - - /* Set the function pointers */ - this->OpenAudio = DSP_OpenAudio; - this->WaitAudio = DSP_WaitAudio; - this->PlayAudio = DSP_PlayAudio; - this->GetAudioBuf = DSP_GetAudioBuf; - this->CloseAudio = DSP_CloseAudio; - - this->free = Audio_DeleteDevice; - - return this; -} - -AudioBootStrap SUNAUDIO_bootstrap = { - "audio", "UNIX /dev/audio interface", - Audio_Available, Audio_CreateDevice -}; - -#ifdef DEBUG_AUDIO -void CheckUnderflow(_THIS) -{ -#ifdef AUDIO_GETINFO - audio_info_t info; - int left; - - ioctl(audio_fd, AUDIO_GETINFO, &info); - left = (written - info.play.samples); - if ( written && (left == 0) ) { - fprintf(stderr, "audio underflow!\n"); - } -#endif -} -#endif - -void DSP_WaitAudio(_THIS) -{ -#ifdef AUDIO_GETINFO -#define SLEEP_FUDGE 10 /* 10 ms scheduling fudge factor */ - audio_info_t info; - Sint32 left; - - ioctl(audio_fd, AUDIO_GETINFO, &info); - left = (written - info.play.samples); - if ( left > fragsize ) { - Sint32 sleepy; - - sleepy = ((left - fragsize)/frequency); - sleepy -= SLEEP_FUDGE; - if ( sleepy > 0 ) { - SDL_Delay(sleepy); - } - } -#else - fd_set fdset; - - FD_ZERO(&fdset); - FD_SET(audio_fd, &fdset); - select(audio_fd+1, NULL, &fdset, NULL, NULL); -#endif -} - -void DSP_PlayAudio(_THIS) -{ - /* Write the audio data */ - if ( ulaw_only ) { - /* Assuming that this->spec.freq >= 8000 Hz */ - int accum, incr, pos; - Uint8 *aubuf; - - accum = 0; - incr = this->spec.freq/8; - aubuf = ulaw_buf; - switch (audio_fmt & 0xFF) { - case 8: { - Uint8 *sndbuf; - - sndbuf = mixbuf; - for ( pos=0; pos < fragsize; ++pos ) { - *aubuf = snd2au((0x80-*sndbuf)*64); - accum += incr; - while ( accum > 0 ) { - accum -= 1000; - sndbuf += 1; - } - aubuf += 1; - } - } - break; - case 16: { - Sint16 *sndbuf; - - sndbuf = (Sint16 *)mixbuf; - for ( pos=0; pos < fragsize; ++pos ) { - *aubuf = snd2au(*sndbuf/4); - accum += incr; - while ( accum > 0 ) { - accum -= 1000; - sndbuf += 1; - } - aubuf += 1; - } - } - break; - } -#ifdef DEBUG_AUDIO - CheckUnderflow(this); -#endif - if ( write(audio_fd, ulaw_buf, fragsize) < 0 ) { - /* Assume fatal error, for now */ - this->enabled = 0; - } - written += fragsize; - } else { -#ifdef DEBUG_AUDIO - CheckUnderflow(this); -#endif - if ( write(audio_fd, mixbuf, this->spec.size) < 0 ) { - /* Assume fatal error, for now */ - this->enabled = 0; - } - written += fragsize; - } -} - -Uint8 *DSP_GetAudioBuf(_THIS) -{ - return(mixbuf); -} - -void DSP_CloseAudio(_THIS) -{ - if ( mixbuf != NULL ) { - SDL_FreeAudioMem(mixbuf); - mixbuf = NULL; - } - if ( ulaw_buf != NULL ) { - SDL_free(ulaw_buf); - ulaw_buf = NULL; - } - close(audio_fd); -} - -int DSP_OpenAudio(_THIS, SDL_AudioSpec *spec) -{ - char audiodev[1024]; -#ifdef AUDIO_SETINFO - int enc; -#endif - int desired_freq = spec->freq; - - /* Initialize our freeable variables, in case we fail*/ - audio_fd = -1; - mixbuf = NULL; - ulaw_buf = NULL; - - /* Determine the audio parameters from the AudioSpec */ - switch ( spec->format & 0xFF ) { - - case 8: { /* Unsigned 8 bit audio data */ - spec->format = AUDIO_U8; -#ifdef AUDIO_SETINFO - enc = AUDIO_ENCODING_LINEAR8; -#endif - } - break; - - case 16: { /* Signed 16 bit audio data */ - spec->format = AUDIO_S16SYS; -#ifdef AUDIO_SETINFO - enc = AUDIO_ENCODING_LINEAR; -#endif - } - break; - - default: { - SDL_SetError("Unsupported audio format"); - return(-1); - } - } - audio_fmt = spec->format; - - /* Open the audio device */ - audio_fd = SDL_OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 1); - if ( audio_fd < 0 ) { - SDL_SetError("Couldn't open %s: %s", audiodev, - strerror(errno)); - return(-1); - } - - ulaw_only = 0; /* modern Suns do support linear audio */ -#ifdef AUDIO_SETINFO - for(;;) { - audio_info_t info; - AUDIO_INITINFO(&info); /* init all fields to "no change" */ - - /* Try to set the requested settings */ - info.play.sample_rate = spec->freq; - info.play.channels = spec->channels; - info.play.precision = (enc == AUDIO_ENCODING_ULAW) - ? 8 : spec->format & 0xff; - info.play.encoding = enc; - if( ioctl(audio_fd, AUDIO_SETINFO, &info) == 0 ) { - - /* Check to be sure we got what we wanted */ - if(ioctl(audio_fd, AUDIO_GETINFO, &info) < 0) { - SDL_SetError("Error getting audio parameters: %s", - strerror(errno)); - return -1; - } - if(info.play.encoding == enc - && info.play.precision == (spec->format & 0xff) - && info.play.channels == spec->channels) { - /* Yow! All seems to be well! */ - spec->freq = info.play.sample_rate; - break; - } - } - - switch(enc) { - case AUDIO_ENCODING_LINEAR8: - /* unsigned 8bit apparently not supported here */ - enc = AUDIO_ENCODING_LINEAR; - spec->format = AUDIO_S16SYS; - break; /* try again */ - - case AUDIO_ENCODING_LINEAR: - /* linear 16bit didn't work either, resort to µ-law */ - enc = AUDIO_ENCODING_ULAW; - spec->channels = 1; - spec->freq = 8000; - spec->format = AUDIO_U8; - ulaw_only = 1; - break; - - default: - /* oh well... */ - SDL_SetError("Error setting audio parameters: %s", - strerror(errno)); - return -1; - } - } -#endif /* AUDIO_SETINFO */ - written = 0; - - /* We can actually convert on-the-fly to U-Law */ - if ( ulaw_only ) { - spec->freq = desired_freq; - fragsize = (spec->samples*1000)/(spec->freq/8); - frequency = 8; - ulaw_buf = (Uint8 *)SDL_malloc(fragsize); - if ( ulaw_buf == NULL ) { - SDL_OutOfMemory(); - return(-1); - } - spec->channels = 1; - } else { - fragsize = spec->samples; - frequency = spec->freq/1000; - } -#ifdef DEBUG_AUDIO - fprintf(stderr, "Audio device %s U-Law only\n", - ulaw_only ? "is" : "is not"); - fprintf(stderr, "format=0x%x chan=%d freq=%d\n", - spec->format, spec->channels, spec->freq); -#endif - - /* Update the fragment size as size in bytes */ - SDL_CalculateAudioSpec(spec); - - /* Allocate mixing buffer */ - mixbuf = (Uint8 *)SDL_AllocAudioMem(spec->size); - if ( mixbuf == NULL ) { - SDL_OutOfMemory(); - return(-1); - } - SDL_memset(mixbuf, spec->silence, spec->size); - - /* We're ready to rock and roll. :-) */ - return(0); -} - -/************************************************************************/ -/* This function (snd2au()) copyrighted: */ -/************************************************************************/ -/* Copyright 1989 by Rich Gopstein and Harris Corporation */ -/* */ -/* Permission to use, copy, modify, and distribute this software */ -/* and its documentation for any purpose and without fee is */ -/* hereby granted, provided that the above copyright notice */ -/* appears in all copies and that both that copyright notice and */ -/* this permission notice appear in supporting documentation, and */ -/* that the name of Rich Gopstein and Harris Corporation not be */ -/* used in advertising or publicity pertaining to distribution */ -/* of the software without specific, written prior permission. */ -/* Rich Gopstein and Harris Corporation make no representations */ -/* about the suitability of this software for any purpose. It */ -/* provided "as is" without express or implied warranty. */ -/************************************************************************/ - -static Uint8 snd2au(int sample) -{ - - int mask; - - if (sample < 0) { - sample = -sample; - mask = 0x7f; - } else { - mask = 0xff; - } - - if (sample < 32) { - sample = 0xF0 | (15 - sample / 2); - } else if (sample < 96) { - sample = 0xE0 | (15 - (sample - 32) / 4); - } else if (sample < 224) { - sample = 0xD0 | (15 - (sample - 96) / 8); - } else if (sample < 480) { - sample = 0xC0 | (15 - (sample - 224) / 16); - } else if (sample < 992) { - sample = 0xB0 | (15 - (sample - 480) / 32); - } else if (sample < 2016) { - sample = 0xA0 | (15 - (sample - 992) / 64); - } else if (sample < 4064) { - sample = 0x90 | (15 - (sample - 2016) / 128); - } else if (sample < 8160) { - sample = 0x80 | (15 - (sample - 4064) / 256); - } else { - sample = 0x80; - } - return (mask & sample); -} -- cgit v1.1