aboutsummaryrefslogtreecommitdiffstats
path: root/distrib/sdl-1.2.12/src/audio/dmedia
diff options
context:
space:
mode:
Diffstat (limited to 'distrib/sdl-1.2.12/src/audio/dmedia')
-rw-r--r--distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.c242
-rw-r--r--distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.h45
2 files changed, 0 insertions, 287 deletions
diff --git a/distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.c b/distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.c
deleted file mode 100644
index f9bd310..0000000
--- a/distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.c
+++ /dev/null
@@ -1,242 +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 (For IRIX 6.5 and higher) */
-/* patch for IRIX 5 by Georg Schwarz 18/07/2004 */
-
-#include "SDL_timer.h"
-#include "SDL_audio.h"
-#include "../SDL_audiomem.h"
-#include "../SDL_audio_c.h"
-#include "SDL_irixaudio.h"
-
-
-#ifndef AL_RESOURCE /* as a test whether we use the old IRIX audio libraries */
-#define OLD_IRIX_AUDIO
-#define alClosePort(x) ALcloseport(x)
-#define alFreeConfig(x) ALfreeconfig(x)
-#define alGetFillable(x) ALgetfillable(x)
-#define alNewConfig() ALnewconfig()
-#define alOpenPort(x,y,z) ALopenport(x,y,z)
-#define alSetChannels(x,y) ALsetchannels(x,y)
-#define alSetQueueSize(x,y) ALsetqueuesize(x,y)
-#define alSetSampFmt(x,y) ALsetsampfmt(x,y)
-#define alSetWidth(x,y) ALsetwidth(x,y)
-#endif
-
-/* Audio driver functions */
-static int AL_OpenAudio(_THIS, SDL_AudioSpec *spec);
-static void AL_WaitAudio(_THIS);
-static void AL_PlayAudio(_THIS);
-static Uint8 *AL_GetAudioBuf(_THIS);
-static void AL_CloseAudio(_THIS);
-
-/* Audio driver bootstrap functions */
-
-static int Audio_Available(void)
-{
- 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 = AL_OpenAudio;
- this->WaitAudio = AL_WaitAudio;
- this->PlayAudio = AL_PlayAudio;
- this->GetAudioBuf = AL_GetAudioBuf;
- this->CloseAudio = AL_CloseAudio;
-
- this->free = Audio_DeleteDevice;
-
- return this;
-}
-
-AudioBootStrap DMEDIA_bootstrap = {
- "AL", "IRIX DMedia audio",
- Audio_Available, Audio_CreateDevice
-};
-
-
-void static AL_WaitAudio(_THIS)
-{
- Sint32 timeleft;
-
- timeleft = this->spec.samples - alGetFillable(audio_port);
- if ( timeleft > 0 ) {
- timeleft /= (this->spec.freq/1000);
- SDL_Delay((Uint32)timeleft);
- }
-}
-
-static void AL_PlayAudio(_THIS)
-{
- /* Write the audio data out */
- if ( alWriteFrames(audio_port, mixbuf, this->spec.samples) < 0 ) {
- /* Assume fatal error, for now */
- this->enabled = 0;
- }
-}
-
-static Uint8 *AL_GetAudioBuf(_THIS)
-{
- return(mixbuf);
-}
-
-static void AL_CloseAudio(_THIS)
-{
- if ( mixbuf != NULL ) {
- SDL_FreeAudioMem(mixbuf);
- mixbuf = NULL;
- }
- if ( audio_port != NULL ) {
- alClosePort(audio_port);
- audio_port = NULL;
- }
-}
-
-static int AL_OpenAudio(_THIS, SDL_AudioSpec * spec)
-{
- Uint16 test_format = SDL_FirstAudioFormat(spec->format);
- long width = 0;
- long fmt = 0;
- int valid = 0;
-
-#ifdef OLD_IRIX_AUDIO
- {
- long audio_param[2];
- audio_param[0] = AL_OUTPUT_RATE;
- audio_param[1] = spec->freq;
- valid = (ALsetparams(AL_DEFAULT_DEVICE, audio_param, 2) < 0);
- }
-#else
- {
- ALpv audio_param;
- audio_param.param = AL_RATE;
- audio_param.value.i = spec->freq;
- valid = (alSetParams(AL_DEFAULT_OUTPUT, &audio_param, 1) < 0);
- }
-#endif
-
- while ((!valid) && (test_format)) {
- valid = 1;
- spec->format = test_format;
-
- switch (test_format) {
- case AUDIO_S8:
- width = AL_SAMPLE_8;
- fmt = AL_SAMPFMT_TWOSCOMP;
- break;
-
- case AUDIO_S16SYS:
- width = AL_SAMPLE_16;
- fmt = AL_SAMPFMT_TWOSCOMP;
- break;
-
- default:
- valid = 0;
- test_format = SDL_NextAudioFormat();
- break;
- }
-
- if (valid) {
- ALconfig audio_config = alNewConfig();
- valid = 0;
- if (audio_config) {
- if (alSetChannels(audio_config, spec->channels) < 0) {
- if (spec->channels > 2) { /* can't handle > stereo? */
- spec->channels = 2; /* try again below. */
- }
- }
-
- if ((alSetSampFmt(audio_config, fmt) >= 0) &&
- ((!width) || (alSetWidth(audio_config, width) >= 0)) &&
- (alSetQueueSize(audio_config, spec->samples * 2) >= 0) &&
- (alSetChannels(audio_config, spec->channels) >= 0)) {
-
- audio_port = alOpenPort("SDL audio", "w", audio_config);
- if (audio_port == NULL) {
- /* docs say AL_BAD_CHANNELS happens here, too. */
- int err = oserror();
- if (err == AL_BAD_CHANNELS) {
- spec->channels = 2;
- alSetChannels(audio_config, spec->channels);
- audio_port = alOpenPort("SDL audio", "w",
- audio_config);
- }
- }
-
- if (audio_port != NULL) {
- valid = 1;
- }
- }
-
- alFreeConfig(audio_config);
- }
- }
- }
-
- if (!valid) {
- SDL_SetError("Unsupported audio format");
- return (-1);
- }
-
- /* 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);
-}
-
diff --git a/distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.h b/distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.h
deleted file mode 100644
index 751de41..0000000
--- a/distrib/sdl-1.2.12/src/audio/dmedia/SDL_irixaudio.h
+++ /dev/null
@@ -1,45 +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"
-
-#ifndef _SDL_lowaudio_h
-#define _SDL_lowaudio_h
-
-#include <dmedia/audio.h>
-
-#include "../SDL_sysaudio.h"
-
-/* Hidden "this" pointer for the audio functions */
-#define _THIS SDL_AudioDevice *this
-
-struct SDL_PrivateAudioData {
- /* The handle for the audio device */
- ALport audio_port;
-
- Uint8 *mixbuf; /* The app mixing buffer */
-};
-
-/* Old variable names */
-#define audio_port (this->hidden->audio_port)
-#define mixbuf (this->hidden->mixbuf)
-
-#endif /* _SDL_lowaudio_h */
generated by cgit v1.1 at 2024-12-22 17:15:27 +0000