70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
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/*
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* Copyright (C) 2019 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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#include <gui/BufferQueue.h>
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namespace android {
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class HostBufferQueue : public IGraphicBufferProducer, public IGraphicBufferConsumer {
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public:
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HostBufferQueue() : mWidth(0), mHeight(0) { }
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virtual status_t setConsumerIsProtected(bool isProtected) { return OK; }
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virtual status_t detachBuffer(int slot) { return OK; }
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virtual status_t getReleasedBuffers(uint64_t* slotMask) { return OK; }
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virtual status_t setDefaultBufferSize(uint32_t w, uint32_t h) {
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mWidth = w;
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mHeight = h;
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mBuffer = sp<GraphicBuffer>(new GraphicBuffer(mWidth, mHeight));
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return OK;
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}
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virtual status_t setDefaultBufferFormat(PixelFormat defaultFormat) { return OK; }
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virtual status_t setDefaultBufferDataSpace(android_dataspace defaultDataSpace) { return OK; }
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virtual status_t discardFreeBuffers() { return OK; }
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virtual status_t acquireBuffer(BufferItem* buffer, nsecs_t presentWhen,
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uint64_t maxFrameNumber = 0) {
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buffer->mGraphicBuffer = mBuffer;
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buffer->mSlot = 0;
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return OK;
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}
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virtual status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers) { return OK; }
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virtual status_t setConsumerUsageBits(uint64_t usage) { return OK; }
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private:
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sp<GraphicBuffer> mBuffer;
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uint32_t mWidth;
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uint32_t mHeight;
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};
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void BufferQueue::createBufferQueue(sp<IGraphicBufferProducer>* outProducer,
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sp<IGraphicBufferConsumer>* outConsumer) {
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sp<HostBufferQueue> obj(new HostBufferQueue());
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*outProducer = obj;
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*outConsumer = obj;
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}
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} // namespace android
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