118 lines
4.2 KiB
C++
118 lines
4.2 KiB
C++
/*
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* Copyright (C) 2007 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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#ifndef ANDROID_SF_FRAMEBUFFER_SURFACE_H
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#define ANDROID_SF_FRAMEBUFFER_SURFACE_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <compositionengine/DisplaySurface.h>
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#include <compositionengine/impl/HwcBufferCache.h>
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#include <gui/ConsumerBase.h>
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#include <ui/Size.h>
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#include "DisplayIdentification.h"
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// ---------------------------------------------------------------------------
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namespace android {
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// ---------------------------------------------------------------------------
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class Rect;
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class String8;
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class HWComposer;
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// ---------------------------------------------------------------------------
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class FramebufferSurface : public ConsumerBase, public compositionengine::DisplaySurface {
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public:
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FramebufferSurface(HWComposer& hwc, DisplayId displayId,
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const sp<IGraphicBufferConsumer>& consumer, uint32_t maxWidth,
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uint32_t maxHeight);
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virtual status_t beginFrame(bool mustRecompose);
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virtual status_t prepareFrame(CompositionType compositionType);
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virtual status_t advanceFrame();
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virtual void onFrameCommitted();
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virtual void dumpAsString(String8& result) const;
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virtual void resizeBuffers(uint32_t width, uint32_t height);
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virtual const sp<Fence>& getClientTargetAcquireFence() const override;
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private:
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virtual ~FramebufferSurface() { }; // this class cannot be overloaded
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virtual void freeBufferLocked(int slotIndex);
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virtual void dumpLocked(String8& result, const char* prefix) const;
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// Limits the width and height by the maximum width specified in the constructor.
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ui::Size limitFramebufferSize(uint32_t width, uint32_t height);
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// nextBuffer waits for and then latches the next buffer from the
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// BufferQueue and releases the previously latched buffer to the
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// BufferQueue. The new buffer is returned in the 'buffer' argument.
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status_t nextBuffer(uint32_t& outSlot, sp<GraphicBuffer>& outBuffer,
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sp<Fence>& outFence, ui::Dataspace& outDataspace);
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const DisplayId mDisplayId;
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// Framebuffer size has a dimension limitation in pixels based on the graphics capabilities of
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// the device.
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const uint32_t mMaxWidth;
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// Framebuffer size has a dimension limitation in pixels based on the graphics capabilities of
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// the device.
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const uint32_t mMaxHeight;
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// mCurrentBufferIndex is the slot index of the current buffer or
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// INVALID_BUFFER_SLOT to indicate that either there is no current buffer
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// or the buffer is not associated with a slot.
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int mCurrentBufferSlot;
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// mDataSpace is the dataspace of the current composition buffer for
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// this FramebufferSurface. It will be 0 when HWC is doing the
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// compositing. Otherwise it will display the dataspace of the buffer
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// use for compositing which can change as wide-color content is
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// on/off.
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ui::Dataspace mDataSpace;
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// mCurrentBuffer is the current buffer or nullptr to indicate that there is
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// no current buffer.
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sp<GraphicBuffer> mCurrentBuffer;
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// mCurrentFence is the current buffer's acquire fence
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sp<Fence> mCurrentFence;
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// Hardware composer, owned by SurfaceFlinger.
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HWComposer& mHwc;
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compositionengine::impl::HwcBufferCache mHwcBufferCache;
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// Previous buffer to release after getting an updated retire fence
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bool mHasPendingRelease;
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int mPreviousBufferSlot;
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sp<GraphicBuffer> mPreviousBuffer;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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// ---------------------------------------------------------------------------
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#endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H
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