85 lines
2.9 KiB
C++
85 lines
2.9 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 <gui/ConsumerBase.h>
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#define NUM_FRAME_BUFFERS 2
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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 {
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public:
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FramebufferSurface(HWComposer& hwc);
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bool isUpdateOnDemand() const { return false; }
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status_t setUpdateRectangle(const Rect& updateRect);
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status_t compositionComplete();
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virtual void dump(String8& result);
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// setReleaseFenceFd stores a fence file descriptor that will signal when the
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// current buffer is no longer being read. This fence will be returned to
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// the producer when the current buffer is released by updateTexImage().
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// Multiple fences can be set for a given buffer; they will be merged into
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// a single union fence. The SurfaceTexture will close the file descriptor
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// when finished with it.
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status_t setReleaseFenceFd(int fenceFd);
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private:
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virtual ~FramebufferSurface() { }; // this class cannot be overloaded
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virtual void onFrameAvailable();
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virtual void freeBufferLocked(int slotIndex);
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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(sp<GraphicBuffer>& outBuffer, sp<Fence>& outFence);
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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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// mCurrentBuffer is the current buffer or NULL to indicate that there is
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// no current buffer.
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sp<GraphicBuffer> mCurrentBuffer;
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// Hardware composer, owned by SurfaceFlinger.
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HWComposer& mHwc;
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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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