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-rw-r--r--OpenAL32/alSource.c113
1 files changed, 85 insertions, 28 deletions
diff --git a/OpenAL32/alSource.c b/OpenAL32/alSource.c
index dd88ed08..aa2d5719 100644
--- a/OpenAL32/alSource.c
+++ b/OpenAL32/alSource.c
@@ -33,7 +33,7 @@
#include "alAuxEffectSlot.h"
static ALvoid InitSourceParams(ALsource *pSource);
-static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOffset);
+static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOffset, ALuint updateSize);
static ALvoid ApplyOffset(ALsource *pSource, ALboolean bUpdateContext);
static ALint GetByteOffset(ALsource *pSource);
@@ -853,7 +853,7 @@ ALAPI ALvoid ALAPIENTRY alGetSourcef(ALuint source, ALenum eParam, ALfloat *pflV
{
ALCcontext *pContext;
ALsource *pSource;
- ALfloat flOffset;
+ ALfloat flOffset[2];
pContext = alcGetCurrentContext();
if (pContext)
@@ -903,8 +903,20 @@ ALAPI ALvoid ALAPIENTRY alGetSourcef(ALuint source, ALenum eParam, ALfloat *pflV
case AL_SEC_OFFSET:
case AL_SAMPLE_OFFSET:
case AL_BYTE_OFFSET:
- if (GetSourceOffset(pSource, eParam, &flOffset))
- *pflValue = flOffset;
+ if(GetSourceOffset(pSource, eParam, flOffset, pContext->Device->UpdateSize))
+ *pflValue = flOffset[0];
+ else
+ alSetError(AL_INVALID_OPERATION);
+ break;
+
+ case AL_SEC_RW_OFFSETS_EXT:
+ case AL_SAMPLE_RW_OFFSETS_EXT:
+ case AL_BYTE_RW_OFFSETS_EXT:
+ if(GetSourceOffset(pSource, eParam, flOffset, pContext->Device->UpdateSize))
+ {
+ pflValue[0] = flOffset[0];
+ pflValue[1] = flOffset[1];
+ }
else
alSetError(AL_INVALID_OPERATION);
break;
@@ -1089,7 +1101,7 @@ ALAPI ALvoid ALAPIENTRY alGetSourcei(ALuint source, ALenum eParam, ALint *plValu
{
ALCcontext *pContext;
ALsource *pSource;
- ALfloat flOffset;
+ ALfloat flOffset[2];
pContext = alcGetCurrentContext();
if (pContext)
@@ -1162,8 +1174,20 @@ ALAPI ALvoid ALAPIENTRY alGetSourcei(ALuint source, ALenum eParam, ALint *plValu
case AL_SEC_OFFSET:
case AL_SAMPLE_OFFSET:
case AL_BYTE_OFFSET:
- if (GetSourceOffset(pSource, eParam, &flOffset))
- *plValue = (ALint)flOffset;
+ if(GetSourceOffset(pSource, eParam, flOffset, pContext->Device->UpdateSize))
+ *plValue = (ALint)flOffset[0];
+ else
+ alSetError(AL_INVALID_OPERATION);
+ break;
+
+ case AL_SEC_RW_OFFSETS_EXT:
+ case AL_SAMPLE_RW_OFFSETS_EXT:
+ case AL_BYTE_RW_OFFSETS_EXT:
+ if(GetSourceOffset(pSource, eParam, flOffset, pContext->Device->UpdateSize))
+ {
+ plValue[0] = (ALint)flOffset[0];
+ plValue[1] = (ALint)flOffset[1];
+ }
else
alSetError(AL_INVALID_OPERATION);
break;
@@ -1997,12 +2021,13 @@ static ALvoid InitSourceParams(ALsource *pSource)
Gets the current playback position in the given Source, in the appropriate format (Bytes, Samples or MilliSeconds)
The offset is relative to the start of the queue (not the start of the current buffer)
*/
-static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOffset)
+static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOffset, ALuint updateSize)
{
ALbufferlistitem *pBufferList;
ALbuffer *pBuffer;
ALfloat flBufferFreq;
- ALint lBytesPlayed, lChannels;
+ ALint lChannels;
+ ALint readPos, writePos;
ALenum eOriginalFormat;
ALboolean bReturn = AL_TRUE;
ALint lTotalBufferDataSize;
@@ -2016,15 +2041,20 @@ static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOf
lChannels = aluChannelsFromFormat(pBuffer->format);
// Get Current BytesPlayed
- lBytesPlayed = pSource->position * lChannels * 2; // NOTE : This is the byte offset into the *current* buffer
+ readPos = pSource->position * lChannels * 2; // NOTE : This is the byte offset into the *current* buffer
// Add byte length of any processed buffers in the queue
pBufferList = pSource->queue;
while ((pBufferList) && (pBufferList->bufferstate == PROCESSED))
{
- lBytesPlayed += ((ALbuffer*)ALTHUNK_LOOKUPENTRY(pBufferList->buffer))->size;
+ readPos += ((ALbuffer*)ALTHUNK_LOOKUPENTRY(pBufferList->buffer))->size;
pBufferList = pBufferList->next;
}
+ if(pSource->state == AL_PLAYING)
+ writePos = readPos + (updateSize * lChannels * 2);
+ else
+ writePos = readPos;
+
lTotalBufferDataSize = 0;
pBufferList = pSource->queue;
while (pBufferList)
@@ -2036,64 +2066,91 @@ static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOf
if (pSource->bLooping)
{
- if (lBytesPlayed < 0)
- lBytesPlayed = 0;
+ if(readPos < 0)
+ readPos = 0;
else
- lBytesPlayed = lBytesPlayed % lTotalBufferDataSize;
+ readPos %= lTotalBufferDataSize;
+ if(writePos < 0)
+ writePos = 0;
+ else
+ writePos %= lTotalBufferDataSize;
}
else
{
// Clamp BytesPlayed to within 0 and lTotalBufferDataSize
- if(lBytesPlayed < 0)
- lBytesPlayed = 0;
- if(lBytesPlayed > lTotalBufferDataSize)
- lBytesPlayed = lTotalBufferDataSize;
+ if(readPos < 0)
+ readPos = 0;
+ else if(readPos > lTotalBufferDataSize)
+ readPos = lTotalBufferDataSize;
+ if(writePos < 0)
+ writePos = 0;
+ else if(writePos > lTotalBufferDataSize)
+ writePos = lTotalBufferDataSize;
}
switch (eName)
{
case AL_SEC_OFFSET:
- *pflOffset = ((ALfloat)lBytesPlayed / (lChannels * 2.0f * flBufferFreq));
+ case AL_SEC_RW_OFFSETS_EXT:
+ pflOffset[0] = (ALfloat)readPos / (lChannels * 2.0f * flBufferFreq);
+ pflOffset[1] = (ALfloat)writePos / (lChannels * 2.0f * flBufferFreq);
break;
case AL_SAMPLE_OFFSET:
- *pflOffset = (ALfloat)(lBytesPlayed / (lChannels * 2));
+ case AL_SAMPLE_RW_OFFSETS_EXT:
+ pflOffset[0] = (ALfloat)(readPos / (lChannels * 2));
+ pflOffset[1] = (ALfloat)(writePos / (lChannels * 2));
break;
case AL_BYTE_OFFSET:
+ case AL_BYTE_RW_OFFSETS_EXT:
// Take into account the original format of the Buffer
if ((eOriginalFormat == AL_FORMAT_MONO_IMA4) ||
(eOriginalFormat == AL_FORMAT_STEREO_IMA4))
{
// Compression rate of the ADPCM supported is 3.6111 to 1
- lBytesPlayed = (ALint)((ALfloat)lBytesPlayed / 3.6111f);
+ readPos = (ALint)((ALfloat)readPos / 3.6111f);
+ writePos = (ALint)((ALfloat)writePos / 3.6111f);
// Round down to nearest ADPCM block
- *pflOffset = (ALfloat)((lBytesPlayed / (36 * lChannels)) * 36 * lChannels);
+ pflOffset[0] = (ALfloat)((readPos / (36 * lChannels)) * 36 * lChannels);
+ if(pSource->state == AL_PLAYING)
+ {
+ // Round up to nearest ADPCM block
+ pflOffset[1] = (ALfloat)(((writePos + (36 * lChannels) - 1) / (36 * lChannels)) * 36 * lChannels);
+ }
+ else
+ pflOffset[1] = pflOffset[0];
}
else if (eOriginalFormat == AL_FORMAT_REAR8)
{
- *pflOffset = (ALfloat)(lBytesPlayed >> 2);
+ pflOffset[0] = (ALfloat)(readPos >> 2);
+ pflOffset[1] = (ALfloat)(writePos >> 2);
}
else if (eOriginalFormat == AL_FORMAT_REAR16)
{
- *pflOffset = (ALfloat)(lBytesPlayed >> 1);
+ pflOffset[0] = (ALfloat)(readPos >> 1);
+ pflOffset[1] = (ALfloat)(writePos >> 1);
}
else if (aluBytesFromFormat(eOriginalFormat) == 1)
{
- *pflOffset = (ALfloat)(lBytesPlayed >> 1);
+ pflOffset[0] = (ALfloat)(readPos >> 1);
+ pflOffset[1] = (ALfloat)(writePos >> 1);
}
else if (aluBytesFromFormat(eOriginalFormat) == 4)
{
- *pflOffset = (ALfloat)(lBytesPlayed << 1);
+ pflOffset[0] = (ALfloat)(readPos << 1);
+ pflOffset[1] = (ALfloat)(writePos << 1);
}
else
{
- *pflOffset = (ALfloat)lBytesPlayed;
+ pflOffset[0] = (ALfloat)readPos;
+ pflOffset[1] = (ALfloat)writePos;
}
break;
}
}
else
{
- *pflOffset = 0.0f;
+ pflOffset[0] = 0.0f;
+ pflOffset[1] = 0.0f;
}
return bReturn;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 19:18:06 +0000