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-rw-r--r--Alc/sdl.c310
1 files changed, 0 insertions, 310 deletions
diff --git a/Alc/sdl.c b/Alc/sdl.c
deleted file mode 100644
index 236aaf9d..00000000
--- a/Alc/sdl.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/**
- * OpenAL cross platform audio library
- * Copyright (C) 1999-2007 by authors.
- * 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 Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- * Or go to http://www.gnu.org/copyleft/lgpl.html
- */
-
-#include "config.h"
-
-#include "alMain.h"
-#include "AL/al.h"
-#include "AL/alc.h"
-
-#include <string.h>
-#include <stdlib.h>
-#ifdef HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#ifdef HAVE_SDL_SDL_H
-#include <SDL/SDL.h>
-#elif defined(HAVE_SDL_H)
-#include <SDL.h>
-#endif
-
-static void *sdl_handle;
-#define MAKE_FUNC(x) static typeof(x) * p##x
-MAKE_FUNC(SDL_PauseAudio);
-MAKE_FUNC(SDL_CloseAudio);
-MAKE_FUNC(SDL_OpenAudio);
-MAKE_FUNC(SDL_InitSubSystem);
-MAKE_FUNC(SDL_GetError);
-MAKE_FUNC(SDL_LockAudio);
-MAKE_FUNC(SDL_UnlockAudio);
-#undef MAKE_FUNC
-
-static char *sdl_device;
-/* SDL audio can only be initialized once per process */
-static int initialized;
-
-typedef struct {
- SDL_AudioSpec audioSpec;
- volatile int killNow;
- ALvoid *thread;
-
- ALubyte *mix_data;
- int data_size;
- int data_read;
- int data_write;
-} sdl_data;
-
-
-static void SDLCALL fillAudio(void *userdata, Uint8 *stream, int len)
-{
- sdl_data *data = (sdl_data*)userdata;
- int rem = data->data_size-data->data_read;
- if(len >= rem)
- {
- memcpy(stream, data->mix_data + data->data_read, rem);
- stream += rem;
- len -= rem;
- data->data_read = 0;
- }
- if(len > 0)
- {
- memcpy(stream, data->mix_data + data->data_read, len);
- data->data_read += len;
- }
-}
-
-static ALuint SDLProc(ALvoid *ptr)
-{
- ALCdevice *pDevice = (ALCdevice*)ptr;
- sdl_data *data = (sdl_data*)pDevice->ExtraData;
- int len, rem;
-
- pSDL_PauseAudio(0);
- while(!data->killNow)
- {
- pSDL_LockAudio();
-
- len = (data->data_read-data->data_write+data->data_size)%data->data_size;
- if(len == 0)
- {
- pSDL_UnlockAudio();
-
- Sleep(1);
- continue;
- }
-
- rem = data->data_size - data->data_write;
-
- SuspendContext(NULL);
- if(len > rem)
- {
- aluMixData(pDevice->Context, data->mix_data+data->data_write, rem, pDevice->Format);
- aluMixData(pDevice->Context, data->mix_data, len-rem, pDevice->Format);
- }
- else
- aluMixData(pDevice->Context, data->mix_data+data->data_write, len, pDevice->Format);
- ProcessContext(NULL);
-
- data->data_write = data->data_read;
-
- pSDL_UnlockAudio();
- }
- pSDL_PauseAudio(1);
-
- return 0;
-}
-
-static ALCboolean sdl_open_playback(ALCdevice *device, const ALCchar *deviceName)
-{
- SDL_AudioSpec sdlSpec;
- ALuint frameSize;
- sdl_data *data;
-
- if(initialized || !sdl_device)
- return ALC_FALSE;
-
- if(deviceName)
- {
- if(strcmp(deviceName, sdl_device))
- return ALC_FALSE;
- device->szDeviceName = sdl_device;
- }
- else
- device->szDeviceName = sdl_device;
-
- data = (sdl_data*)calloc(1, sizeof(sdl_data));
- data->killNow = 0;
-
- frameSize = aluBytesFromFormat(device->Format) *
- aluChannelsFromFormat(device->Format);
-
- sdlSpec.freq = device->Frequency;
- sdlSpec.channels = aluChannelsFromFormat(device->Format);
- switch(aluBytesFromFormat(device->Format))
- {
- case 1:
- sdlSpec.format = AUDIO_U8;
- break;
- case 2:
- sdlSpec.format = AUDIO_S16SYS;
- break;
- default:
- AL_PRINT("Unknown format?! %x\n", device->Format);
- free(data);
- return ALC_FALSE;
- }
- sdlSpec.samples = 1;
- while(sdlSpec.samples < device->UpdateSize)
- sdlSpec.samples <<= 1;
- sdlSpec.samples >>= 1;
-
- sdlSpec.callback = fillAudio;
- sdlSpec.userdata = data;
-
- if(pSDL_OpenAudio(&sdlSpec, &data->audioSpec) < 0)
- {
- AL_PRINT("Audio init failed: %s\n", pSDL_GetError());
- free(data);
- return ALC_FALSE;
- }
-
- if(!((data->audioSpec.format == AUDIO_U8 && aluBytesFromFormat(device->Format) == 1) ||
- (data->audioSpec.format == AUDIO_S16SYS && aluBytesFromFormat(device->Format) == 2)))
- {
- AL_PRINT("Could not set %d-bit, got format %#x instead\n", aluBytesFromFormat(device->Format), data->audioSpec.format);
- pSDL_CloseAudio();
- free(data);
- return ALC_FALSE;
- }
- if(aluChannelsFromFormat(device->Format) != data->audioSpec.channels)
- {
- AL_PRINT("Could not set %d channels, got %d instead\n", aluChannelsFromFormat(device->Format), data->audioSpec.channels);
- pSDL_CloseAudio();
- free(data);
- return ALC_FALSE;
- }
-
- device->Frequency = data->audioSpec.freq;
- device->UpdateSize = data->audioSpec.size / frameSize;
-
- data->data_size = device->UpdateSize * frameSize * 2;
- data->mix_data = malloc(data->data_size);
- if(data->mix_data == NULL)
- {
- AL_PRINT("Could not allocate %d bytes\n", data->data_size);
- pSDL_CloseAudio();
- free(data);
- return ALC_FALSE;
- }
- memset(data->mix_data, data->audioSpec.silence, data->data_size);
-
- device->ExtraData = data;
- data->thread = StartThread(SDLProc, device);
- if(data->thread == NULL)
- {
- pSDL_CloseAudio();
- device->ExtraData = NULL;
- free(data->mix_data);
- free(data);
- return ALC_FALSE;
- }
-
- initialized = 1;
-
- return ALC_TRUE;
-}
-
-static void sdl_close_playback(ALCdevice *device)
-{
- sdl_data *data = (sdl_data*)device->ExtraData;
- data->killNow = 1;
- StopThread(data->thread);
-
- pSDL_CloseAudio();
- initialized = 0;
-
- free(data->mix_data);
- free(data);
- device->ExtraData = NULL;
-}
-
-
-static ALCboolean sdl_open_capture(ALCdevice *device, const ALCchar *deviceName, ALCuint frequency, ALCenum format, ALCsizei SampleSize)
-{
- return ALC_FALSE;
- (void)device;
- (void)deviceName;
- (void)frequency;
- (void)format;
- (void)SampleSize;
-}
-
-
-BackendFuncs sdl_funcs = {
- sdl_open_playback,
- sdl_close_playback,
- sdl_open_capture,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL
-};
-
-void alc_sdl_init(BackendFuncs *func_list)
-{
- const char *str;
-
- *func_list = sdl_funcs;
-
-#ifdef HAVE_DLFCN_H
-#if defined(__APPLE__) && defined(__MACH__)
-# define SDLLIB "SDL.framework/SDL"
-#else
-# define SDLLIB "libSDL.so"
-#endif
- sdl_handle = dlopen(SDLLIB, RTLD_NOW);
- if(!sdl_handle)
- return;
- dlerror();
-
-#define LOAD_FUNC(f) do { \
- p##f = (typeof(f)*)dlsym(sdl_handle, #f); \
- if((str=dlerror()) != NULL) \
- { \
- dlclose(sdl_handle); \
- sdl_handle = NULL; \
- AL_PRINT("Could not load %s from "SDLLIB": %s\n", #f, str); \
- return; \
- } \
-} while(0)
-#else
- str = NULL;
- sdl_handle = 0xDEADBEEF;
-#define LOAD_FUNC(f) p##f = f
-#endif
-
- LOAD_FUNC(SDL_PauseAudio);
- LOAD_FUNC(SDL_CloseAudio);
- LOAD_FUNC(SDL_OpenAudio);
- LOAD_FUNC(SDL_InitSubSystem);
- LOAD_FUNC(SDL_GetError);
- LOAD_FUNC(SDL_LockAudio);
- LOAD_FUNC(SDL_UnlockAudio);
-
-#undef LOAD_FUNC
-
- if(pSDL_InitSubSystem(SDL_INIT_AUDIO) < 0)
- return;
-
- sdl_device = AppendDeviceList("SDL Software");
- AppendAllDeviceList(sdl_device);
-}
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