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/*
* Copyright (C) 2007 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.
*/
#ifndef ANDROID_SF_FRAMEBUFFER_SURFACE_H
#define ANDROID_SF_FRAMEBUFFER_SURFACE_H
#include <stdint.h>
#include <sys/types.h>
#include <gui/ConsumerBase.h>
#include "DisplaySurface.h"
// ---------------------------------------------------------------------------
namespace android {
// ---------------------------------------------------------------------------
class Rect;
class String8;
class HWComposer;
// ---------------------------------------------------------------------------
class FramebufferSurface : public ConsumerBase,
public DisplaySurface {
public:
FramebufferSurface(HWComposer& hwc, int disp, const sp<IGraphicBufferConsumer>& consumer);
virtual status_t beginFrame(bool mustRecompose);
virtual status_t prepareFrame(CompositionType compositionType);
virtual status_t compositionComplete();
virtual status_t advanceFrame();
virtual void onFrameCommitted();
// Implementation of DisplaySurface::dump(). Note that ConsumerBase also
// has a non-virtual dump() with the same signature.
virtual void dump(String8& result) const;
// Cannot resize a buffers in a FramebufferSurface. Only works with virtual
// displays.
virtual void resizeBuffers(const uint32_t /*w*/, const uint32_t /*h*/) { };
private:
virtual ~FramebufferSurface() { }; // this class cannot be overloaded
virtual void onFrameAvailable(const BufferItem& item);
virtual void freeBufferLocked(int slotIndex);
virtual void dumpLocked(String8& result, const char* prefix) const;
// nextBuffer waits for and then latches the next buffer from the
// BufferQueue and releases the previously latched buffer to the
// BufferQueue. The new buffer is returned in the 'buffer' argument.
status_t nextBuffer(sp<GraphicBuffer>& outBuffer, sp<Fence>& outFence);
// mDisplayType must match one of the HWC display types
int mDisplayType;
// mCurrentBufferIndex is the slot index of the current buffer or
// INVALID_BUFFER_SLOT to indicate that either there is no current buffer
// or the buffer is not associated with a slot.
int mCurrentBufferSlot;
// mCurrentBuffer is the current buffer or NULL to indicate that there is
// no current buffer.
sp<GraphicBuffer> mCurrentBuffer;
// Hardware composer, owned by SurfaceFlinger.
HWComposer& mHwc;
};
// ---------------------------------------------------------------------------
}; // namespace android
// ---------------------------------------------------------------------------
#endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H
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