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