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/*
* Copyright (C) 2019 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.
*/
#pragma once
#include <utils/RefBase.h>
#include <ui/PixelFormat.h>
#include <utils/Errors.h>
namespace android {
class BufferItem;
class Fence;
class GraphicBuffer;
class IGraphicBufferConsumer : virtual public RefBase {
public:
enum {
// Returned by releaseBuffer, after which the consumer must free any references to the
// just-released buffer that it might have.
STALE_BUFFER_SLOT = 1,
// Returned by dequeueBuffer if there are no pending buffers available.
NO_BUFFER_AVAILABLE,
// Returned by dequeueBuffer if it's too early for the buffer to be acquired.
PRESENT_LATER,
};
virtual status_t acquireBuffer(BufferItem* buffer, nsecs_t presentWhen,
uint64_t maxFrameNumber = 0) = 0;
virtual status_t detachBuffer(int slot) = 0;
virtual status_t getReleasedBuffers(uint64_t* slotMask) = 0;
virtual status_t setDefaultBufferSize(uint32_t w, uint32_t h) = 0;
virtual status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers) = 0;
virtual status_t setDefaultBufferFormat(PixelFormat defaultFormat) = 0;
virtual status_t setDefaultBufferDataSpace(android_dataspace defaultDataSpace) = 0;
virtual status_t setConsumerUsageBits(uint64_t usage) = 0;
virtual status_t setConsumerIsProtected(bool isProtected) = 0;
virtual status_t discardFreeBuffers() = 0;
};
} // namespace android
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