CARingBufferError CARingBuffer::Fetch(AudioBufferList *abl, UInt32 nFrames, SampleTime startRead)
{
SampleTime endRead = startRead + nFrames;
SampleTime startRead0 = startRead;
SampleTime endRead0 = endRead;
CARingBufferError err = ClipTimeBounds(startRead, endRead);
SampleTime readSizeFrames = endRead - startRead;
if (err) {
if ( readSizeFrames <= 0 ) { CARB_DEBUG( "POS1 read size frames too little. (%ld)\n", err ); return err; }
}
SInt32 destStartFrameOffset = startRead - startRead0;
if ( destStartFrameOffset > 0 ) {
CARB_DEBUG( "Fetch - Zeroing start bound\n" );
ZeroABL(abl, 0, destStartFrameOffset * mBytesPerFrame);
}
SInt32 destEndSize = endRead0 - endRead;
if ( destEndSize > 0 ) {
CARB_DEBUG( "Fetch - Zeroing end bound (%ld frames off)\n", destEndSize );
ZeroABL(abl, ( destStartFrameOffset + readSizeFrames ) * mBytesPerFrame, destEndSize * mBytesPerFrame);
}
Byte **buffers = mBuffers;
int offset0 = FrameOffset(startRead);
int offset1 = FrameOffset(endRead);
int destStartByteOffset = destStartFrameOffset * mBytesPerFrame;
int nbytes;
if ( offset0 < offset1 ) {
nbytes = offset1 - offset0;
FetchABL( abl, destStartByteOffset , buffers, offset0, nbytes );
} else {
nbytes = mCapacityBytes - offset0;
FetchABL( abl, destStartByteOffset , buffers, offset0, nbytes );
FetchABL( abl, destStartByteOffset + nbytes, buffers, 0 , offset1 );
nbytes += offset1;
}
int nchannels = abl->mNumberBuffers;
AudioBuffer *dest = abl->mBuffers;
while (--nchannels >= 0) {
dest->mDataByteSize = nbytes;
dest++;
}
OSStatus err2 = ClipTimeBounds( startRead, endRead );
err2 = worse( err, err2 );
readSizeFrames = endRead - startRead;
if ( err2 ) {
if ( readSizeFrames <= 0 ) { CARB_DEBUG( "POS2 read size frames too little. (%ld)\n", err2 ); return err2; }
}
if ( err2 ) {
CARB_DEBUG( "Returning error %ld.\n", err2 );
}
return err2;
}
int bi_weak_dom_restrict (const cost_t * v1, const cost_t * v2, uint dims) {
assert (dims > 0);
uint k = ffs(dims);
dims >>= k;
int i = k-1;
/*printf("v1; ");
println_double_tab (v1, 4);
printf("v2; ");
println_double_tab (v2, 4);*/
while (v1[i] == v2[i]) {
if (dims <= 0)
return -1;
k = ffs(dims); dims >>= k;
i += k;
}
if (better (v1[i], v2[i])) {
// return 0 or 1
while (dims > 0) {
k = ffs(dims); dims >>= k;
i += k;
if (worse (v1[i], v2[i]))
return 0;
}
return 1;
}
else {
// return 0 or -1
while (dims > 0) {
CARingBufferError CARingBuffer::Fetch(AudioBufferList *abl, UInt32 nFrames, SampleTime startRead, bool outOfBoundsOK)
{
SampleTime endRead = startRead + nFrames;
SampleTime startRead0 = startRead;
SampleTime endRead0 = endRead;
SampleTime size;
CARingBufferError err = CheckTimeBounds(startRead, endRead);
size = endRead - startRead;
if (err) {
if (!outOfBoundsOK) return err;
if (size <= 0) return err; // there is nothing to read
}
SInt32 destStartOffset = startRead - startRead0;
if (destStartOffset > 0) {
ZeroABL(abl, 0, destStartOffset * mBytesPerFrame);
}
SInt32 destEndSize = endRead0 - endRead;
if (destEndSize > 0) {
ZeroABL(abl, destStartOffset + size, destEndSize * mBytesPerFrame);
}
Byte **buffers = mBuffers;
int offset0 = FrameOffset(startRead);
int offset1 = FrameOffset(endRead);
int nbytes;
if (offset0 < offset1) {
FetchABL(abl, destStartOffset, buffers, offset0, nbytes = offset1 - offset0);
} else {
nbytes = mCapacityBytes - offset0;
FetchABL(abl, destStartOffset, buffers, offset0, nbytes);
FetchABL(abl, destStartOffset + nbytes, buffers, 0, offset1);
nbytes += offset1;
}
int nchannels = abl->mNumberBuffers;
AudioBuffer *dest = abl->mBuffers;
while (--nchannels >= 0)
{
dest->mDataByteSize = nbytes;
dest++;
}
// have to check bounds again because the data may have been overwritten before we could finish reading it.
OSStatus err2 = CheckTimeBounds(startRead, endRead);
err2 = worse(err, err2);
size = endRead - startRead;
if (err2) {
if (!outOfBoundsOK) return err2;
if (size <= 0) return err2; // there is nothing to read
}
return err2;
}
bool weak_dom (const cost_t * v1, const cost_t * v2, int p) {
int i;
for (i=0; i < p; i++) {
#ifdef DOM_COUNT_COMP
other_comp++;
#endif
if (worse (v1[i], v2[i]))
return false;
}
return true;
}
bool dom (const cost_t * v1, const cost_t * v2, int p) {
int i;
bool one_ineq = false;
for (i=0; i < p; i++) {
#ifdef DOM_COUNT_COMP
other_comp++;
#endif
if (worse (v1[i], v2[i]))
return false;
else if (better (v1[i], v2[i]))
one_ineq = true;
}
return one_ineq;
}
int bi_weak_dom (const cost_t * v1, const cost_t * v2, int dim) {
int i = 0;
while (v1[i] == v2[i]) {
i++;
if (i == dim)
return 1;
}
// i < first + p
if (better (v1[i], v2[i])) {
// return 0 or 1
for ( ; i<dim; i++)
if (worse (v1[i], v2[i]))
return 0;
return 1;
}
else {
// return 0 or -1
for ( ; i<dim; i++)
if (better (v1[i], v2[i]))
return 0;
return -1;
}
}
