diff options
Diffstat (limited to 'plugins/dfsound/openal.c')
| -rwxr-xr-x | plugins/dfsound/openal.c | 626 |
1 files changed, 313 insertions, 313 deletions
diff --git a/plugins/dfsound/openal.c b/plugins/dfsound/openal.c index d4a5d964..b283bfca 100755 --- a/plugins/dfsound/openal.c +++ b/plugins/dfsound/openal.c @@ -1,313 +1,313 @@ -/***************************************************************************
- * Copyright (C) 2011 by Blade_Arma *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program 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 General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
- ***************************************************************************/
-
-#include "stdafx.h"
-
-#define _IN_OSS
-
-#include "externals.h"
-
-#ifdef __APPLE__
-#include <OpenAL/al.h>
-#include <OpenAL/alc.h>
-#else
-#include <AL/al.h>
-#include <AL/alc.h>
-#endif
-
-/******************************************************************************/
-/* Defines.
- */
-
-#define BUFFER_SIZE_TOTAL (32768)
-#define BUFFER_SIZE (2048)
-#define BUFFER_QUANTITY (BUFFER_SIZE_TOTAL / BUFFER_SIZE)
-
-/******************************************************************************/
-/* Variables.
- */
-
-static ALCdevice *pDevice;
-static ALCcontext *pContext;
-
-// Buffers hold sound data.
-static ALuint buffers[BUFFER_QUANTITY];
-
-// Sources are points emitting sound.
-static ALuint source;
-
-// Position of the source sound.
-static ALfloat SourcePos[] = {0.0, 0.0, 0.0};
-
-// Velocity of the source sound.
-static ALfloat SourceVel[] = {0.0, 0.0, 0.0};
-
-// Direction of the source sound.
-static ALfloat SourceDir[] = {0.0, 0.0, 0.0};
-
-// Position of the listener.
-static ALfloat ListenerPos[] = {0.0, 0.0, 0.0};
-
-// Velocity of the listener.
-static ALfloat ListenerVel[] = {0.0, 0.0, 0.0};
-
-// Orientation of the listener. (first 3 elements are "at", second 3 are "up")
-static ALfloat ListenerOri[] = {0.0, 0.0, -1.0, 0.0, 1.0, 0.0};
-
-static ALenum format = AL_FORMAT_STEREO16;
-static ALuint sampleRate = 44100;
-
-static ALuint UNUSED_VARIABLE sampleQuality = 16;
-static ALuint UNUSED_VARIABLE channels = 2;
-
-/******************************************************************************/
-/* Error handling.
- */
-
-char* GetALErrorString(ALenum error)
-{
- switch(error)
- {
- case AL_NO_ERROR:
- return 0;
- case AL_INVALID_NAME:
- return "AL_INVALID_NAME";
- case AL_INVALID_ENUM:
- return "AL_INVALID_ENUM";
- case AL_INVALID_VALUE:
- return "AL_INVALID_VALUE";
- case AL_INVALID_OPERATION:
- return "AL_INVALID_OPERATION";
- case AL_OUT_OF_MEMORY:
- return "AL_OUT_OF_MEMORY";
- };
-
- return "AL_UNKNOWN_ERROR";
-}
-
-char* GetALCErrorString(ALenum error)
-{
- switch(error)
- {
- case ALC_NO_ERROR:
- return 0;
- case ALC_INVALID_DEVICE:
- return "ALC_INVALID_DEVICE";
- case ALC_INVALID_CONTEXT:
- return "ALC_INVALID_CONTEXT";
- case ALC_INVALID_ENUM:
- return "ALC_INVALID_ENUM";
- case ALC_INVALID_VALUE:
- return "ALC_INVALID_VALUE";
- case ALC_OUT_OF_MEMORY:
- return "ALC_OUT_OF_MEMORY";
- };
-
- return "ALC_UNKNOWN_ERROR";
-}
-
-int checkALError()
-{
- char *pErrorString = GetALErrorString(alGetError());
- if(pErrorString)
- {
- fprintf(stderr, "[SPU] AL: %s.\n", pErrorString);
- return -1;
- }
-
- return 0;
-}
-
-int checkALCError()
-{
- char *pErrorString = GetALCErrorString(alcGetError(pDevice));
- if(pErrorString)
- {
- fprintf(stderr, "[SPU] ALC: %s.\n", pErrorString);
- return -1;
- }
-
- return 0;
-}
-
-/******************************************************************************/
-
-void SetupSound()
-{
- unsigned char buf[BUFFER_SIZE];
- int i;
-
- // Get handle to device.
- pDevice = alcOpenDevice(NULL);
- if(checkALCError())
- {
- fprintf(stderr, "[SPU] alcOpenDevice failed.\n");
- return;
- }
-
- // ALC info.
- const ALCubyte* UNUSED_VARIABLE deviceName = (ALCubyte*)alcGetString(pDevice, ALC_DEVICE_SPECIFIER);
- //printf("[SPU] ALC_DEVICE_SPECIFIER = %s.\n", deviceName);
-
- const ALCubyte* UNUSED_VARIABLE extensionList = (ALCubyte*)alcGetString(pDevice, ALC_EXTENSIONS);
- //printf("[SPU] ALC_EXTENSIONS = %s.\n", extensionList);
-
- // Create audio context.
- pContext = alcCreateContext(pDevice, NULL);
- if(checkALCError())
- {
- fprintf(stderr, "[SPU] alcCreateContext failed.\n");
- return;
- }
-
- // Set active context.
- alcMakeContextCurrent( pContext );
- if( checkALCError() )
- {
- fprintf(stderr, "[SPU] alcMakeContextCurrent failed.\n");
- return;
- }
-
- // AL info.
- const ALubyte* UNUSED_VARIABLE version = (ALubyte*)alGetString(AL_VERSION);
- //printf("[SPU] AL_VERSION = %s.\n", version);
-
- const ALubyte* UNUSED_VARIABLE renderer = (ALubyte*)alGetString(AL_RENDERER);
- //printf("[SPU] AL_RENDERER = %s.\n", renderer);
-
- const ALubyte* UNUSED_VARIABLE vendor = (ALubyte*)alGetString(AL_VENDOR);
- //printf("[SPU] AL_VENDOR = %s.\n", vendor);
-
- // Create buffers.
- alGenBuffers(BUFFER_QUANTITY, buffers);
- checkALError();
-
- // Load sound data into a buffer.
- memset(buf, 0x00, BUFFER_SIZE);
- for(i = 0; i < BUFFER_QUANTITY; ++i)
- {
- alBufferData(buffers[i], format, buf, BUFFER_SIZE, sampleRate);
- }
- checkALError();
-
- // Create source.
- alGenSources(1, &source);
- checkALError();
-
- // Bind buffer with a source.
- alSourcef (source, AL_PITCH, 1.0f );
- alSourcef (source, AL_GAIN, 1.0f );
- alSourcefv(source, AL_POSITION, SourcePos);
- alSourcefv(source, AL_VELOCITY, SourceVel);
- alSourcefv(source, AL_DIRECTION, SourceDir);
- alSourcei (source, AL_SOURCE_RELATIVE, AL_TRUE );
- alSourcei (source, AL_LOOPING, AL_FALSE );
-
- // Listener properties.
- alListenerfv(AL_POSITION, ListenerPos);
- alListenerfv(AL_VELOCITY, ListenerVel);
- alListenerfv(AL_ORIENTATION, ListenerOri);
-
- // Add buffers to queue.
- alSourceQueueBuffers(source, BUFFER_QUANTITY, buffers);
- checkALError();
-
- // Enable playing.
- alSourcePlay(source);
- checkALError();
-}
-
-void RemoveSound()
-{
- alSourceStop(source);
- checkALError();
- alDeleteSources(1, &source);
- checkALError();
- alDeleteBuffers(BUFFER_QUANTITY, buffers);
- checkALError();
-
- // Reset the current context to NULL.
- alcMakeContextCurrent(NULL);
- checkALCError();
-
- // RELEASE the context and the device.
- alcDestroyContext(pContext);
- checkALCError();
- alcCloseDevice(pDevice);
-}
-
-/******************************************************************************/
-
-unsigned long SoundGetBytesBuffered()
-{
- ALint processed;
- int buffered;
-
- alGetSourcei(source, AL_BUFFERS_PROCESSED, &processed);
- checkALError();
-
- buffered = BUFFER_SIZE_TOTAL - processed * BUFFER_SIZE;
- //printf("[SPU] SoundGetBytesBuffered: %i\n", buffered);
-
- return buffered;
-}
-
-/******************************************************************************/
-
-void SoundFeedStreamData(unsigned char *pData, long lBytes)
-{
- ALint processed;
- ALint state;
- ALuint buffer;
- int needed;
- int i;
-
- //printf("[SPU] SoundFeedStreamData: %i\n", lBytes);
-
- needed = (lBytes + (BUFFER_SIZE - 1)) / BUFFER_SIZE;
-
- // Expect free buffer.
- alGetSourcei(source, AL_BUFFERS_PROCESSED, &processed);
- while(processed < needed)
- {
- usleep(1);
- alGetSourcei(source, AL_BUFFERS_PROCESSED, &processed);
- }
-
- // Add buffers to queue.
- for(i = 0; i < needed; ++i)
- {
- alSourceUnqueueBuffers(source, 1, &buffer);
- alBufferData(buffer, format, pData, lBytes > BUFFER_SIZE ? BUFFER_SIZE : lBytes, sampleRate);
- alSourceQueueBuffers(source, 1, &buffer);
- lBytes -= BUFFER_SIZE;
- pData += BUFFER_SIZE;
- }
-
- // Restart playing.
- alGetSourcei(source, AL_SOURCE_STATE, &state);
- if(state != AL_PLAYING)
- {
- //fprintf(stderr, "[SPU] AL_SOURCE_STATE != AL_PLAYING: %x\n", state);
- alSourcePlay(source);
- checkALError();
- }
-}
-
-/******************************************************************************/
+/*************************************************************************** + * Copyright (C) 2011 by Blade_Arma * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program 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 General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * + ***************************************************************************/ + +#include "stdafx.h" + +#define _IN_OSS + +#include "externals.h" + +#ifdef __APPLE__ +#include <OpenAL/al.h> +#include <OpenAL/alc.h> +#else +#include <AL/al.h> +#include <AL/alc.h> +#endif + +/******************************************************************************/ +/* Defines. + */ + +#define BUFFER_SIZE_TOTAL (32768) +#define BUFFER_SIZE (2048) +#define BUFFER_QUANTITY (BUFFER_SIZE_TOTAL / BUFFER_SIZE) + +/******************************************************************************/ +/* Variables. + */ + +static ALCdevice *pDevice; +static ALCcontext *pContext; + +// Buffers hold sound data. +static ALuint buffers[BUFFER_QUANTITY]; + +// Sources are points emitting sound. +static ALuint source; + +// Position of the source sound. +static ALfloat SourcePos[] = {0.0, 0.0, 0.0}; + +// Velocity of the source sound. +static ALfloat SourceVel[] = {0.0, 0.0, 0.0}; + +// Direction of the source sound. +static ALfloat SourceDir[] = {0.0, 0.0, 0.0}; + +// Position of the listener. +static ALfloat ListenerPos[] = {0.0, 0.0, 0.0}; + +// Velocity of the listener. +static ALfloat ListenerVel[] = {0.0, 0.0, 0.0}; + +// Orientation of the listener. (first 3 elements are "at", second 3 are "up") +static ALfloat ListenerOri[] = {0.0, 0.0, -1.0, 0.0, 1.0, 0.0}; + +static ALenum format = AL_FORMAT_STEREO16; +static ALuint sampleRate = 44100; + +static ALuint UNUSED_VARIABLE sampleQuality = 16; +static ALuint UNUSED_VARIABLE channels = 2; + +/******************************************************************************/ +/* Error handling. + */ + +char* GetALErrorString(ALenum error) +{ + switch(error) + { + case AL_NO_ERROR: + return 0; + case AL_INVALID_NAME: + return "AL_INVALID_NAME"; + case AL_INVALID_ENUM: + return "AL_INVALID_ENUM"; + case AL_INVALID_VALUE: + return "AL_INVALID_VALUE"; + case AL_INVALID_OPERATION: + return "AL_INVALID_OPERATION"; + case AL_OUT_OF_MEMORY: + return "AL_OUT_OF_MEMORY"; + }; + + return "AL_UNKNOWN_ERROR"; +} + +char* GetALCErrorString(ALenum error) +{ + switch(error) + { + case ALC_NO_ERROR: + return 0; + case ALC_INVALID_DEVICE: + return "ALC_INVALID_DEVICE"; + case ALC_INVALID_CONTEXT: + return "ALC_INVALID_CONTEXT"; + case ALC_INVALID_ENUM: + return "ALC_INVALID_ENUM"; + case ALC_INVALID_VALUE: + return "ALC_INVALID_VALUE"; + case ALC_OUT_OF_MEMORY: + return "ALC_OUT_OF_MEMORY"; + }; + + return "ALC_UNKNOWN_ERROR"; +} + +int checkALError() +{ + char *pErrorString = GetALErrorString(alGetError()); + if(pErrorString) + { + fprintf(stderr, "[SPU] AL: %s.\n", pErrorString); + return -1; + } + + return 0; +} + +int checkALCError() +{ + char *pErrorString = GetALCErrorString(alcGetError(pDevice)); + if(pErrorString) + { + fprintf(stderr, "[SPU] ALC: %s.\n", pErrorString); + return -1; + } + + return 0; +} + +/******************************************************************************/ + +void SetupSound() +{ + unsigned char buf[BUFFER_SIZE]; + int i; + + // Get handle to device. + pDevice = alcOpenDevice(NULL); + if(checkALCError()) + { + fprintf(stderr, "[SPU] alcOpenDevice failed.\n"); + return; + } + + // ALC info. + const ALCubyte* UNUSED_VARIABLE deviceName = (ALCubyte*)alcGetString(pDevice, ALC_DEVICE_SPECIFIER); + //printf("[SPU] ALC_DEVICE_SPECIFIER = %s.\n", deviceName); + + const ALCubyte* UNUSED_VARIABLE extensionList = (ALCubyte*)alcGetString(pDevice, ALC_EXTENSIONS); + //printf("[SPU] ALC_EXTENSIONS = %s.\n", extensionList); + + // Create audio context. + pContext = alcCreateContext(pDevice, NULL); + if(checkALCError()) + { + fprintf(stderr, "[SPU] alcCreateContext failed.\n"); + return; + } + + // Set active context. + alcMakeContextCurrent( pContext ); + if( checkALCError() ) + { + fprintf(stderr, "[SPU] alcMakeContextCurrent failed.\n"); + return; + } + + // AL info. + const ALubyte* UNUSED_VARIABLE version = (ALubyte*)alGetString(AL_VERSION); + //printf("[SPU] AL_VERSION = %s.\n", version); + + const ALubyte* UNUSED_VARIABLE renderer = (ALubyte*)alGetString(AL_RENDERER); + //printf("[SPU] AL_RENDERER = %s.\n", renderer); + + const ALubyte* UNUSED_VARIABLE vendor = (ALubyte*)alGetString(AL_VENDOR); + //printf("[SPU] AL_VENDOR = %s.\n", vendor); + + // Create buffers. + alGenBuffers(BUFFER_QUANTITY, buffers); + checkALError(); + + // Load sound data into a buffer. + memset(buf, 0x00, BUFFER_SIZE); + for(i = 0; i < BUFFER_QUANTITY; ++i) + { + alBufferData(buffers[i], format, buf, BUFFER_SIZE, sampleRate); + } + checkALError(); + + // Create source. + alGenSources(1, &source); + checkALError(); + + // Bind buffer with a source. + alSourcef (source, AL_PITCH, 1.0f ); + alSourcef (source, AL_GAIN, 1.0f ); + alSourcefv(source, AL_POSITION, SourcePos); + alSourcefv(source, AL_VELOCITY, SourceVel); + alSourcefv(source, AL_DIRECTION, SourceDir); + alSourcei (source, AL_SOURCE_RELATIVE, AL_TRUE ); + alSourcei (source, AL_LOOPING, AL_FALSE ); + + // Listener properties. + alListenerfv(AL_POSITION, ListenerPos); + alListenerfv(AL_VELOCITY, ListenerVel); + alListenerfv(AL_ORIENTATION, ListenerOri); + + // Add buffers to queue. + alSourceQueueBuffers(source, BUFFER_QUANTITY, buffers); + checkALError(); + + // Enable playing. + alSourcePlay(source); + checkALError(); +} + +void RemoveSound() +{ + alSourceStop(source); + checkALError(); + alDeleteSources(1, &source); + checkALError(); + alDeleteBuffers(BUFFER_QUANTITY, buffers); + checkALError(); + + // Reset the current context to NULL. + alcMakeContextCurrent(NULL); + checkALCError(); + + // RELEASE the context and the device. + alcDestroyContext(pContext); + checkALCError(); + alcCloseDevice(pDevice); +} + +/******************************************************************************/ + +unsigned long SoundGetBytesBuffered() +{ + ALint processed; + int buffered; + + alGetSourcei(source, AL_BUFFERS_PROCESSED, &processed); + checkALError(); + + buffered = BUFFER_SIZE_TOTAL - processed * BUFFER_SIZE; + //printf("[SPU] SoundGetBytesBuffered: %i\n", buffered); + + return buffered; +} + +/******************************************************************************/ + +void SoundFeedStreamData(unsigned char *pData, long lBytes) +{ + ALint processed; + ALint state; + ALuint buffer; + int needed; + int i; + + //printf("[SPU] SoundFeedStreamData: %i\n", lBytes); + + needed = (lBytes + (BUFFER_SIZE - 1)) / BUFFER_SIZE; + + // Expect free buffer. + alGetSourcei(source, AL_BUFFERS_PROCESSED, &processed); + while(processed < needed) + { + usleep(1); + alGetSourcei(source, AL_BUFFERS_PROCESSED, &processed); + } + + // Add buffers to queue. + for(i = 0; i < needed; ++i) + { + alSourceUnqueueBuffers(source, 1, &buffer); + alBufferData(buffer, format, pData, lBytes > BUFFER_SIZE ? BUFFER_SIZE : lBytes, sampleRate); + alSourceQueueBuffers(source, 1, &buffer); + lBytes -= BUFFER_SIZE; + pData += BUFFER_SIZE; + } + + // Restart playing. + alGetSourcei(source, AL_SOURCE_STATE, &state); + if(state != AL_PLAYING) + { + //fprintf(stderr, "[SPU] AL_SOURCE_STATE != AL_PLAYING: %x\n", state); + alSourcePlay(source); + checkALError(); + } +} + +/******************************************************************************/ |
