void BufferManager::deinitialize()
{
mInitialized = false;
if (mBufferPool) {
// unmap & delete all cached buffer mappers
for (size_t i = 0; i < mBufferPool->getCacheSize(); i++) {
BufferMapper *mapper = mBufferPool->getMapper(i);
mapper->unmap();
delete mapper;
}
delete mBufferPool;
mBufferPool = NULL;
}
for (size_t j = 0; j < mFrameBuffers.size(); j++) {
BufferMapper *mapper = mFrameBuffers.valueAt(j);
mapper->unmap();
delete mapper;
}
mFrameBuffers.clear();
if (mGralloc) {
gralloc_close_img(mGralloc);
mGralloc = NULL;
}
if (mDataBuffer) {
delete mDataBuffer;
mDataBuffer = NULL;
}
}
BufferMapper* BufferManager::map(DataBuffer& buffer)
{
bool ret;
BufferMapper* mapper;
CTRACE();
Mutex::Autolock _l(mLock);
//try to get mapper from pool
mapper = mBufferPool->getMapper(buffer.getKey());
if (mapper) {
// increase mapper ref count
mapper->incRef();
return mapper;
}
// create a new buffer mapper and add it to pool
do {
VLOGTRACE("new buffer, will add it");
mapper = createBufferMapper(buffer);
if (!mapper) {
ELOGTRACE("failed to allocate mapper");
break;
}
ret = mapper->map();
if (!ret) {
ELOGTRACE("failed to map");
delete mapper;
mapper = NULL;
break;
}
ret = mBufferPool->addMapper(buffer.getKey(), mapper);
if (!ret) {
ELOGTRACE("failed to add mapper");
break;
}
// increase mapper ref count
mapper->incRef();
return mapper;
} while (0);
// error handling
if (mapper) {
mapper->unmap();
delete mapper;
}
return NULL;
}