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-rw-r--r--OpenAL32/alBuffer.c989
1 files changed, 989 insertions, 0 deletions
diff --git a/OpenAL32/alBuffer.c b/OpenAL32/alBuffer.c
new file mode 100644
index 00000000..53ee128a
--- /dev/null
+++ b/OpenAL32/alBuffer.c
@@ -0,0 +1,989 @@
+/**
+ * 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
+ */
+
+#define _CRT_SECURE_NO_DEPRECATE // get rid of sprintf security warnings on VS2005
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "alMain.h"
+#include "AL/al.h"
+#include "AL/alc.h"
+#include "alError.h"
+#include "alBuffer.h"
+
+#ifdef _DEBUG
+ char szDebug[256];
+#endif
+
+/*
+ * AL Buffer Functions
+ *
+ * AL Buffers are shared amoung Contexts, so we store the list of generated Buffers
+ * as a global variable in this module. (A valid context is not required to make
+ * AL Buffer function calls
+ *
+ */
+
+/*
+* Global Variables
+*/
+
+static ALbuffer *g_pBuffers = NULL; // Linked List of Buffers
+static ALuint g_uiBufferCount = 0; // Buffer Count
+
+static const long g_IMAStep_size[89]={ // IMA ADPCM Stepsize table
+ 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 19, 21, 23, 25, 28, 31,
+ 34, 37, 41, 45, 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, 130, 143,
+ 157, 173, 190, 209, 230, 253, 279, 307, 337, 371, 408, 449, 494, 544, 598, 658,
+ 724, 796, 876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024,
+ 3327, 3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630, 9493,10442,11487,12635,13899,
+ 15289,16818,18500,20350,22358,24633,27086,29794,32767
+};
+
+static const long g_IMACodeword_4[16]={ // IMA4 ADPCM Codeword decode table
+ 1, 3, 5, 7, 9, 11, 13, 15,
+ -1,-3,-5,-7,-9,-11,-13,-15,
+};
+
+static const long g_IMAIndex_adjust_4[16]={ // IMA4 ADPCM Step index adjust decode table
+ -1,-1,-1,-1, 2, 4, 6, 8,
+ -1,-1,-1,-1, 2, 4, 6, 8
+};
+
+/*
+* alGenBuffers(ALsizei n, ALuint *puiBuffers)
+*
+* Generates n AL Buffers, and stores the Buffers Names in the array pointed to by puiBuffers
+*/
+ALAPI ALvoid ALAPIENTRY alGenBuffers(ALsizei n,ALuint *puiBuffers)
+{
+ ALCcontext *Context;
+ ALsizei i=0;
+
+ Context = alcGetCurrentContext();
+ SuspendContext(Context);
+
+ // Check that we are actually generation some Buffers
+ if (n > 0)
+ {
+ // Check the pointer is valid (and points to enough memory to store Buffer Names)
+ if (!IsBadWritePtr((void*)puiBuffers, n * sizeof(ALuint)))
+ {
+ ALbuffer **list = &g_pBuffers;
+ while(*list)
+ list = &(*list)->next;
+
+ // Create all the new Buffers
+ while(i < n)
+ {
+ *list = calloc(1, sizeof(ALbuffer));
+ if(*list)
+ {
+ puiBuffers[i] = (ALuint)ALTHUNK_ADDENTRY(*list);
+ (*list)->state = UNUSED;
+ g_uiBufferCount++;
+ i++;
+
+ list = &(*list)->next;
+ }
+ }
+
+ // If we didn't create all the Buffers, we must have run out of memory
+ if (i != n)
+ alSetError(AL_OUT_OF_MEMORY);
+ }
+ else
+ {
+ // Pointer does not point to enough memory to write Buffer names
+ alSetError(AL_INVALID_VALUE);
+ }
+ }
+
+ ProcessContext(Context);
+
+ return;
+}
+
+/*
+* alDeleteBuffers(ALsizei n, ALuint *puiBuffers)
+*
+* Deletes the n AL Buffers pointed to by puiBuffers
+*/
+ALAPI ALvoid ALAPIENTRY alDeleteBuffers(ALsizei n, const ALuint *puiBuffers)
+{
+ ALCcontext *Context;
+ ALbuffer *ALBuf;
+ ALsizei i;
+ ALboolean bFailed = AL_FALSE;
+
+ Context = alcGetCurrentContext();
+ SuspendContext(Context);
+
+ // Check we are actually Deleting some Buffers
+ if (n >= 0)
+ {
+ if ((ALuint)n <= g_uiBufferCount)
+ {
+ // Check that all the buffers are valid and can actually be deleted
+ for (i = 0; i < n; i++)
+ {
+ // Check for valid Buffer ID (can be NULL buffer)
+ if (alIsBuffer(puiBuffers[i]))
+ {
+ // If not the NULL buffer, check that the reference count is 0
+ ALBuf = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(puiBuffers[i]));
+ if (ALBuf)
+ {
+ if (ALBuf->refcount != 0)
+ {
+ // Buffer still in use, cannot be deleted
+ alSetError(AL_INVALID_OPERATION);
+ bFailed = AL_TRUE;
+ }
+ }
+ }
+ else
+ {
+ // Invalid Buffer
+ alSetError(AL_INVALID_NAME);
+ bFailed = AL_TRUE;
+ }
+ }
+
+ // If all the Buffers were valid (and have Reference Counts of 0), then we can delete them
+ if (!bFailed)
+ {
+ for (i = 0; i < n; i++)
+ {
+ ALBuf=((ALbuffer *)ALTHUNK_LOOKUPENTRY(puiBuffers[i]));
+ if (ALBuf)
+ {
+ ALbuffer **list = &g_pBuffers;
+ while(*list && *list != ALBuf)
+ list = &(*list)->next;
+
+ if(*list)
+ *list = (*list)->next;
+
+ // Release the memory used to store audio data
+ free(ALBuf->data);
+
+ // Release buffer structure
+ ALTHUNK_REMOVEENTRY(puiBuffers[i]);
+ memset(ALBuf, 0, sizeof(ALbuffer));
+ g_uiBufferCount--;
+ free(ALBuf);
+ }
+ }
+ }
+ }
+ else
+ alSetError(AL_INVALID_NAME);
+ }
+ else
+ alSetError(AL_INVALID_VALUE);
+
+ ProcessContext(Context);
+
+ return;
+
+}
+
+/*
+* alIsBuffer(ALuint uiBuffer)
+*
+* Checks if ulBuffer is a valid Buffer Name
+*/
+ALAPI ALboolean ALAPIENTRY alIsBuffer(ALuint uiBuffer)
+{
+ ALCcontext *Context;
+ ALboolean result=AL_FALSE;
+ ALbuffer *ALBuf;
+ ALbuffer *TgtALBuf;
+
+ Context = alcGetCurrentContext();
+ SuspendContext(Context);
+
+ if (uiBuffer)
+ {
+ TgtALBuf = (ALbuffer *)ALTHUNK_LOOKUPENTRY(uiBuffer);
+
+ // Check through list of generated buffers for uiBuffer
+ ALBuf = g_pBuffers;
+ while (ALBuf)
+ {
+ if (ALBuf == TgtALBuf)
+ {
+ result = AL_TRUE;
+ break;
+ }
+
+ ALBuf = ALBuf->next;
+ }
+ }
+ else
+ {
+ result = AL_TRUE;
+ }
+
+
+ ProcessContext(Context);
+
+ return result;
+}
+
+/*
+* alBufferData(ALuint buffer,ALenum format,ALvoid *data,ALsizei size,ALsizei freq)
+*
+* Fill buffer with audio data
+*/
+ALAPI ALvoid ALAPIENTRY alBufferData(ALuint buffer,ALenum format,const ALvoid *data,ALsizei size,ALsizei freq)
+{
+ ALuint *IMAData,IMACode;
+ ALCcontext *Context;
+ ALint Sample,Index;
+ ALint LeftSample,LeftIndex;
+ ALint RightSample,RightIndex;
+ ALuint LeftIMACode,RightIMACode;
+ ALbuffer *ALBuf;
+ ALsizei i,j,k;
+
+ Context = alcGetCurrentContext();
+ SuspendContext(Context);
+
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ ALBuf=((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+ if ((ALBuf->refcount==0)&&(data))
+ {
+ switch(format)
+ {
+ case AL_FORMAT_MONO8:
+ if ((size%1) == 0)
+ {
+ // 8bit Samples are converted to 16 bit here
+ // Allocate 8 extra samples (16 bytes)
+ ALBuf->data=realloc(ALBuf->data,16+(size/sizeof(ALubyte))*(1*sizeof(ALshort)));
+ if (ALBuf->data)
+ {
+ ALBuf->format = AL_FORMAT_MONO16;
+ ALBuf->eOriginalFormat = AL_FORMAT_MONO8;
+ for (i=0;i<(ALsizei)(size/sizeof(ALubyte));i++)
+ ALBuf->data[i]=(ALshort)((((ALubyte *)data)[i]-128)<<8);
+ memset(&(ALBuf->data[size/sizeof(ALubyte)]), 0, 16);
+ ALBuf->size=size/sizeof(ALubyte)*1*sizeof(ALshort);
+ ALBuf->frequency=freq;
+ }
+ else
+ alSetError(AL_OUT_OF_MEMORY);
+ }
+ else
+ alSetError(AL_INVALID_VALUE);
+ break;
+
+ case AL_FORMAT_MONO16:
+ if ((size%2) == 0)
+ {
+ // Allocate 8 extra samples (16 bytes)
+ ALBuf->data=realloc(ALBuf->data,16+(size/sizeof(ALshort))*(1*sizeof(ALshort)));
+ if (ALBuf->data)
+ {
+ ALBuf->format = AL_FORMAT_MONO16;
+ ALBuf->eOriginalFormat = AL_FORMAT_MONO16;
+ memcpy(ALBuf->data,data,size/sizeof(ALshort)*1*sizeof(ALshort));
+ memset(&(ALBuf->data[size/sizeof(ALshort)]), 0, 16);
+ ALBuf->size=size/sizeof(ALshort)*1*sizeof(ALshort);
+ ALBuf->frequency=freq;
+ }
+ else
+ alSetError(AL_OUT_OF_MEMORY);
+ }
+ else
+ alSetError(AL_INVALID_VALUE);
+ break;
+
+ case AL_FORMAT_STEREO8:
+ if ((size%2) == 0)
+ {
+ // 8bit Samples are converted to 16 bit here
+ // Allocate 8 extra samples (32 bytes)
+ ALBuf->data=realloc(ALBuf->data,32+(size/sizeof(ALubyte))*(1*sizeof(ALshort)));
+ if (ALBuf->data)
+ {
+ ALBuf->format = AL_FORMAT_STEREO16;
+ ALBuf->eOriginalFormat = AL_FORMAT_STEREO8;
+ for (i=0;i<(ALsizei)(size/sizeof(ALubyte));i++)
+ ALBuf->data[i]=(ALshort)((((ALubyte *)data)[i]-128)<<8);
+ memset(&(ALBuf->data[size/sizeof(ALubyte)]), 0, 32);
+ ALBuf->size=size/sizeof(ALubyte)*1*sizeof(ALshort);
+ ALBuf->frequency=freq;
+ }
+ else
+ alSetError(AL_OUT_OF_MEMORY);
+ }
+ else
+ alSetError(AL_INVALID_VALUE);
+ break;
+
+ case AL_FORMAT_STEREO16:
+ if ((size%4) == 0)
+ {
+ // Allocate 8 extra samples (32 bytes)
+ ALBuf->data=realloc(ALBuf->data,32+(size/sizeof(ALshort))*(1*sizeof(ALshort)));
+ if (ALBuf->data)
+ {
+ ALBuf->format = AL_FORMAT_STEREO16;
+ ALBuf->eOriginalFormat = AL_FORMAT_STEREO16;
+ memcpy(ALBuf->data,data,size/sizeof(ALshort)*1*sizeof(ALshort));
+ memset(&(ALBuf->data[size/sizeof(ALshort)]), 0, 32);
+ ALBuf->size=size/sizeof(ALshort)*1*sizeof(ALshort);
+ ALBuf->frequency=freq;
+ }
+ else
+ alSetError(AL_OUT_OF_MEMORY);
+ }
+ else
+ alSetError(AL_INVALID_VALUE);
+ break;
+
+ case AL_FORMAT_MONO_IMA4:
+ // Here is where things vary:
+ // nVidia and Apple use 64+1 samples per block => block_size=36 bytes
+ // Most PC sound software uses 2040+1 samples per block -> block_size=1024 bytes
+ if ((size%36) == 0)
+ {
+ // Allocate 8 extra samples (16 bytes)
+ ALBuf->data=realloc(ALBuf->data,16+(size/36)*(65*sizeof(ALshort)));
+ if (ALBuf->data)
+ {
+ ALBuf->format = AL_FORMAT_MONO16;
+ ALBuf->eOriginalFormat = AL_FORMAT_MONO_IMA4;
+ IMAData=(ALuint *)data;
+ for (i=0;i<size/36;i++)
+ {
+ Sample=((ALshort *)IMAData)[0];
+ Index=((ALshort *)IMAData)[1];
+
+ Index=Index<0?0:Index;
+ Index=Index>88?88:Index;
+
+ ALBuf->data[i*65]=(short)Sample;
+
+ IMAData++;
+
+ for (j=1;j<65;j+=8)
+ {
+ IMACode=*IMAData;
+ for (k=0;k<8;k+=2)
+ {
+ Sample+=((g_IMAStep_size[Index]*g_IMACodeword_4[IMACode&15])/8);
+ Index+=g_IMAIndex_adjust_4[IMACode&15];
+ if (Sample<-32768) Sample=-32768;
+ else if (Sample>32767) Sample=32767;
+ if (Index<0) Index=0;
+ else if (Index>88) Index=88;
+ ALBuf->data[i*65+j+k]=(short)Sample;
+ IMACode>>=4;
+
+ Sample+=((g_IMAStep_size[Index]*g_IMACodeword_4[IMACode&15])/8);
+ Index+=g_IMAIndex_adjust_4[IMACode&15];
+ if (Sample<-32768) Sample=-32768;
+ else if (Sample>32767) Sample=32767;
+ if (Index<0) Index=0;
+ else if (Index>88) Index=88;
+ ALBuf->data[i*65+j+k+1]=(short)Sample;
+ IMACode>>=4;
+ }
+ IMAData++;
+ }
+ }
+ memset(&(ALBuf->data[(size/36*65)]), 0, 16);
+ ALBuf->size=size/36*65*sizeof(ALshort);
+ ALBuf->frequency=freq;
+ }
+ else
+ alSetError(AL_OUT_OF_MEMORY);
+ }
+ else
+ alSetError(AL_INVALID_VALUE);
+ break;
+
+ case AL_FORMAT_STEREO_IMA4:
+ // Here is where things vary:
+ // nVidia and Apple use 64+1 samples per channel per block => block_size=72 bytes
+ // Most PC sound software uses 2040+1 samples per channel per block -> block_size=2048 bytes
+ if ((size%72) == 0)
+ {
+ // Allocate 8 extra samples (32 bytes)
+ ALBuf->data=realloc(ALBuf->data,32+(size/72)*(2*65*sizeof(ALshort)));
+ if (ALBuf->data)
+ {
+ ALBuf->format = AL_FORMAT_STEREO16;
+ ALBuf->eOriginalFormat = AL_FORMAT_STEREO_IMA4;
+ IMAData=(ALuint *)data;
+ for (i=0;i<size/72;i++)
+ {
+ LeftSample=((ALshort *)IMAData)[0];
+ LeftIndex=((ALshort *)IMAData)[1];
+
+ LeftIndex=LeftIndex<0?0:LeftIndex;
+ LeftIndex=LeftIndex>88?88:LeftIndex;
+
+ ALBuf->data[i*2*65]=(short)LeftSample;
+
+ IMAData++;
+
+ RightSample=((ALshort *)IMAData)[0];
+ RightIndex=((ALshort *)IMAData)[1];
+
+ RightIndex=RightIndex<0?0:RightIndex;
+ RightIndex=RightIndex>88?88:RightIndex;
+
+ ALBuf->data[i*2*65+1]=(short)RightSample;
+
+ IMAData++;
+
+ for (j=2;j<130;j+=16)
+ {
+ LeftIMACode=IMAData[0];
+ RightIMACode=IMAData[1];
+ for (k=0;k<16;k+=4)
+ {
+ LeftSample+=((g_IMAStep_size[LeftIndex]*g_IMACodeword_4[LeftIMACode&15])/8);
+ LeftIndex+=g_IMAIndex_adjust_4[LeftIMACode&15];
+ if (LeftSample<-32768) LeftSample=-32768;
+ else if (LeftSample>32767) LeftSample=32767;
+ if (LeftIndex<0) LeftIndex=0;
+ else if (LeftIndex>88) LeftIndex=88;
+ ALBuf->data[i*2*65+j+k]=(short)LeftSample;
+ LeftIMACode>>=4;
+
+ RightSample+=((g_IMAStep_size[RightIndex]*g_IMACodeword_4[RightIMACode&15])/8);
+ RightIndex+=g_IMAIndex_adjust_4[RightIMACode&15];
+ if (RightSample<-32768) RightSample=-32768;
+ else if (RightSample>32767) RightSample=32767;
+ if (RightIndex<0) RightIndex=0;
+ else if (RightIndex>88) RightIndex=88;
+ ALBuf->data[i*2*65+j+k+1]=(short)RightSample;
+ RightIMACode>>=4;
+
+ LeftSample+=((g_IMAStep_size[LeftIndex]*g_IMACodeword_4[LeftIMACode&15])/8);
+ LeftIndex+=g_IMAIndex_adjust_4[LeftIMACode&15];
+ if (LeftSample<-32768) LeftSample=-32768;
+ else if (LeftSample>32767) LeftSample=32767;
+ if (LeftIndex<0) LeftIndex=0;
+ else if (LeftIndex>88) LeftIndex=88;
+ ALBuf->data[i*2*65+j+k+2]=(short)LeftSample;
+ LeftIMACode>>=4;
+
+ RightSample+=((g_IMAStep_size[RightIndex]*g_IMACodeword_4[RightIMACode&15])/8);
+ RightIndex+=g_IMAIndex_adjust_4[RightIMACode&15];
+ if (RightSample<-32768) RightSample=-32768;
+ else if (RightSample>32767) RightSample=32767;
+ if (RightIndex<0) RightIndex=0;
+ else if (RightIndex>88) RightIndex=88;
+ ALBuf->data[i*2*65+j+k+3]=(short)RightSample;
+ RightIMACode>>=4;
+ }
+ IMAData+=2;
+ }
+ }
+ memset(&(ALBuf->data[(size/72*2*65)]), 0, 32);
+ ALBuf->size=size/72*2*65*sizeof(ALshort);
+ ALBuf->frequency=freq;
+ }
+ else
+ alSetError(AL_OUT_OF_MEMORY);
+ }
+ else
+ alSetError(AL_INVALID_VALUE);
+ break;
+
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ // Buffer is in use, or data is a NULL pointer
+ alSetError(AL_INVALID_VALUE);
+ }
+ }
+ else
+ {
+ // Invalid Buffer Name
+ alSetError(AL_INVALID_NAME);
+ }
+
+ ProcessContext(Context);
+}
+
+
+ALAPI void ALAPIENTRY alBufferf(ALuint buffer, ALenum eParam, ALfloat flValue)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ (void)flValue;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alBuffer3f(ALuint buffer, ALenum eParam, ALfloat flValue1, ALfloat flValue2, ALfloat flValue3)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ (void)flValue1;
+ (void)flValue2;
+ (void)flValue3;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alBufferfv(ALuint buffer, ALenum eParam, const ALfloat* flValues)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ (void)flValues;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alBufferi(ALuint buffer, ALenum eParam, ALint lValue)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ (void)lValue;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alBuffer3i( ALuint buffer, ALenum eParam, ALint lValue1, ALint lValue2, ALint lValue3)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ (void)lValue1;
+ (void)lValue2;
+ (void)lValue3;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alBufferiv(ALuint buffer, ALenum eParam, const ALint* plValues)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ (void)plValues;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI ALvoid ALAPIENTRY alGetBufferf(ALuint buffer, ALenum eParam, ALfloat *pflValue)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (pflValue)
+ {
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_VALUE);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alGetBuffer3f(ALuint buffer, ALenum eParam, ALfloat* pflValue1, ALfloat* pflValue2, ALfloat* pflValue3)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if ((pflValue1) && (pflValue2) && (pflValue3))
+ {
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_VALUE);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alGetBufferfv(ALuint buffer, ALenum eParam, ALfloat* pflValues)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (pflValues)
+ {
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_VALUE);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI ALvoid ALAPIENTRY alGetBufferi(ALuint buffer, ALenum eParam, ALint *plValue)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (plValue)
+ {
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch (eParam)
+ {
+ case AL_FREQUENCY:
+ *plValue = pBuffer->frequency;
+ break;
+
+ case AL_BITS:
+ *plValue= (((pBuffer->format==AL_FORMAT_MONO8)||(pBuffer->format==AL_FORMAT_STEREO8))?8:16);
+ break;
+
+ case AL_CHANNELS:
+ *plValue = (((pBuffer->format==AL_FORMAT_MONO8)||(pBuffer->format==AL_FORMAT_MONO16))?1:2);
+ break;
+
+ case AL_SIZE:
+ *plValue = pBuffer->size;
+ break;
+
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_VALUE);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alGetBuffer3i(ALuint buffer, ALenum eParam, ALint* plValue1, ALint* plValue2, ALint* plValue3)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if ((plValue1) && (plValue2) && (plValue3))
+ {
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch(eParam)
+ {
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_VALUE);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+ALAPI void ALAPIENTRY alGetBufferiv(ALuint buffer, ALenum eParam, ALint* plValues)
+{
+ ALCcontext *pContext;
+ ALbuffer *pBuffer;
+
+ pContext = alcGetCurrentContext();
+ SuspendContext(pContext);
+
+ if (plValues)
+ {
+ if (alIsBuffer(buffer) && (buffer != 0))
+ {
+ pBuffer = ((ALbuffer *)ALTHUNK_LOOKUPENTRY(buffer));
+
+ switch (eParam)
+ {
+ case AL_FREQUENCY:
+ case AL_BITS:
+ case AL_CHANNELS:
+ case AL_SIZE:
+ alGetBufferi(buffer, eParam, plValues);
+ break;
+
+ default:
+ alSetError(AL_INVALID_ENUM);
+ break;
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_NAME);
+ }
+ }
+ else
+ {
+ alSetError(AL_INVALID_VALUE);
+ }
+
+ ProcessContext(pContext);
+}
+
+
+/*
+* ReleaseALBuffers()
+*
+* INTERNAL FN : Called by DLLMain on exit to destroy any buffers that still exist
+*/
+ALvoid ReleaseALBuffers(ALvoid)
+{
+ ALbuffer *ALBuffer;
+ ALbuffer *ALBufferTemp;
+
+#ifdef _DEBUG
+ if(g_uiBufferCount > 0)
+ {
+ sprintf(szDebug, "OpenAL32 : DllMain() %d Buffer(s) NOT deleted\n", g_uiBufferCount);
+ OutputDebugString(szDebug);
+ }
+#endif
+
+ ALBuffer = g_pBuffers;
+ while(ALBuffer)
+ {
+ // Release sample data
+ free(ALBuffer->data);
+
+ // Release Buffer structure
+ ALBufferTemp = ALBuffer;
+ ALBuffer = ALBuffer->next;
+ memset(ALBufferTemp, 0, sizeof(ALbuffer));
+ free(ALBufferTemp);
+ }
+ g_pBuffers = NULL;
+ g_uiBufferCount = 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 19:29:43 +0000