void GrBufferAllocPool::reset() {
VALIDATE();
fBytesInUse = 0;
if (fBlocks.count()) {
GrGeometryBuffer* buffer = fBlocks.back().fBuffer;
if (buffer->isMapped()) {
UNMAP_BUFFER(fBlocks.back());
}
}
// fPreallocBuffersInUse will be decremented down to zero in the while loop
int preallocBuffersInUse = fPreallocBuffersInUse;
while (!fBlocks.empty()) {
this->destroyBlock();
}
if (fPreallocBuffers.count()) {
// must set this after above loop.
fPreallocBufferStartIdx = (fPreallocBufferStartIdx +
preallocBuffersInUse) %
fPreallocBuffers.count();
}
// we may have created a large cpu mirror of a large VB. Reset the size
// to match our pre-allocated VBs.
fCpuData.reset(fMinBlockSize);
SkASSERT(0 == fPreallocBuffersInUse);
VALIDATE();
}
GrBufferAllocPool::~GrBufferAllocPool() {
VALIDATE();
if (fBlocks.count()) {
GrGeometryBuffer* buffer = fBlocks.back().fBuffer;
if (buffer->isMapped()) {
UNMAP_BUFFER(fBlocks.back());
}
}
while (!fBlocks.empty()) {
this->destroyBlock();
}
fPreallocBuffers.unrefAll();
fGpu->unref();
}
void GrBufferAllocPool::flushCpuData(const BufferBlock& block, size_t flushSize) {
GrGeometryBuffer* buffer = block.fBuffer;
SkASSERT(buffer);
SkASSERT(!buffer->isMapped());
SkASSERT(fCpuData.get() == fBufferPtr);
SkASSERT(flushSize <= buffer->gpuMemorySize());
VALIDATE(true);
if (GrCaps::kNone_MapFlags != fGpu->caps()->mapBufferFlags() &&
flushSize > fGeometryBufferMapThreshold) {
void* data = buffer->map();
if (data) {
memcpy(data, fBufferPtr, flushSize);
UNMAP_BUFFER(block);
return;
}
}
buffer->updateData(fBufferPtr, flushSize);
VALIDATE(true);
}
