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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Provides the implementation of the GraphicBuffer interface in
// renderer compostior
#include "graphic_buffer_impl.h"
#include <utils/Errors.h>
namespace android {
GraphicBufferImpl::GraphicBufferImpl(uint32_t w, uint32_t h)
: mBuffer(new android::GraphicBuffer(w, h, PIXEL_FORMAT_RGBA_8888,
android::GraphicBuffer::USAGE_HW_TEXTURE |
android::GraphicBuffer::USAGE_SW_READ_OFTEN |
android::GraphicBuffer::USAGE_SW_WRITE_OFTEN)) {
}
GraphicBufferImpl::~GraphicBufferImpl() {
}
// static
long GraphicBufferImpl::Create(int w, int h) {
GraphicBufferImpl* buffer = new GraphicBufferImpl(
static_cast<uint32_t>(w), static_cast<uint32_t>(h));
if (buffer->InitCheck() != NO_ERROR) {
delete buffer;
return 0;
}
return reinterpret_cast<intptr_t>(buffer);
}
// static
void GraphicBufferImpl::Release(long buffer_id) {
GraphicBufferImpl* buffer = reinterpret_cast<GraphicBufferImpl*>(buffer_id);
delete buffer;
}
// static
int GraphicBufferImpl::MapStatic(long buffer_id, AwMapMode mode, void** vaddr) {
GraphicBufferImpl* buffer = reinterpret_cast<GraphicBufferImpl*>(buffer_id);
return buffer->Map(mode, vaddr);
}
// static
int GraphicBufferImpl::UnmapStatic(long buffer_id) {
GraphicBufferImpl* buffer = reinterpret_cast<GraphicBufferImpl*>(buffer_id);
return buffer->Unmap();
}
// static
void* GraphicBufferImpl::GetNativeBufferStatic(long buffer_id) {
GraphicBufferImpl* buffer = reinterpret_cast<GraphicBufferImpl*>(buffer_id);
return buffer->GetNativeBuffer();
}
// static
uint32_t GraphicBufferImpl::GetStrideStatic(long buffer_id) {
GraphicBufferImpl* buffer = reinterpret_cast<GraphicBufferImpl*>(buffer_id);
return buffer->GetStride();
}
status_t GraphicBufferImpl::Map(AwMapMode mode, void** vaddr) {
int usage = 0;
switch (mode) {
case MAP_READ_ONLY:
usage = android::GraphicBuffer::USAGE_SW_READ_OFTEN;
break;
case MAP_WRITE_ONLY:
usage = android::GraphicBuffer::USAGE_SW_WRITE_OFTEN;
break;
case MAP_READ_WRITE:
usage = android::GraphicBuffer::USAGE_SW_READ_OFTEN |
android::GraphicBuffer::USAGE_SW_WRITE_OFTEN;
break;
default:
return INVALID_OPERATION;
}
return mBuffer->lock(usage, vaddr);
}
status_t GraphicBufferImpl::Unmap() {
return mBuffer->unlock();
}
status_t GraphicBufferImpl::InitCheck() const {
return mBuffer->initCheck();
}
void* GraphicBufferImpl::GetNativeBuffer() const {
return mBuffer->getNativeBuffer();
}
uint32_t GraphicBufferImpl::GetStride() const {
static const int kBytesPerPixel = 4;
return mBuffer->getStride() * kBytesPerPixel;
}
} // namespace android
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