FramebufferSurface.h revision 38efe86d9459cf5c96a24a34cc5cbf31fdba7e19
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_SF_FRAMEBUFFER_SURFACE_H 18#define ANDROID_SF_FRAMEBUFFER_SURFACE_H 19 20#include <stdint.h> 21#include <sys/types.h> 22 23#include <gui/ConsumerBase.h> 24 25#include "DisplaySurface.h" 26 27// --------------------------------------------------------------------------- 28namespace android { 29// --------------------------------------------------------------------------- 30 31class Rect; 32class String8; 33class HWComposer; 34 35// --------------------------------------------------------------------------- 36 37class FramebufferSurface : public ConsumerBase, 38 public DisplaySurface { 39public: 40 FramebufferSurface(HWComposer& hwc, int disp); 41 42 virtual sp<IGraphicBufferProducer> getIGraphicBufferProducer() const; 43 44 virtual status_t prepareFrame(CompositionType compositionType); 45 virtual status_t compositionComplete(); 46 virtual status_t advanceFrame(); 47 virtual void onFrameCommitted(); 48 49 // Implementation of DisplaySurface::dump(). Note that ConsumerBase also 50 // has a non-virtual dump() with the same signature. 51 virtual void dump(String8& result) const; 52 53private: 54 virtual ~FramebufferSurface() { }; // this class cannot be overloaded 55 56 virtual void onFrameAvailable(); 57 virtual void freeBufferLocked(int slotIndex); 58 59 virtual void dumpLocked(String8& result, const char* prefix) const; 60 61 // nextBuffer waits for and then latches the next buffer from the 62 // BufferQueue and releases the previously latched buffer to the 63 // BufferQueue. The new buffer is returned in the 'buffer' argument. 64 status_t nextBuffer(sp<GraphicBuffer>& outBuffer, sp<Fence>& outFence); 65 66 // mDisplayType must match one of the HWC display types 67 int mDisplayType; 68 69 // mCurrentBufferIndex is the slot index of the current buffer or 70 // INVALID_BUFFER_SLOT to indicate that either there is no current buffer 71 // or the buffer is not associated with a slot. 72 int mCurrentBufferSlot; 73 74 // mCurrentBuffer is the current buffer or NULL to indicate that there is 75 // no current buffer. 76 sp<GraphicBuffer> mCurrentBuffer; 77 78 // Hardware composer, owned by SurfaceFlinger. 79 HWComposer& mHwc; 80}; 81 82// --------------------------------------------------------------------------- 83}; // namespace android 84// --------------------------------------------------------------------------- 85 86#endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H 87 88