/* * 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 #include #include #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& consumer); virtual status_t beginFrame(bool mustRecompose); virtual status_t prepareFrame(CompositionType compositionType); virtual status_t compositionComplete(); virtual status_t advanceFrame(); virtual void onFrameCommitted(); virtual void dumpAsString(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(); 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& outBuffer, sp& 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 mCurrentBuffer; // Hardware composer, owned by SurfaceFlinger. HWComposer& mHwc; }; // --------------------------------------------------------------------------- }; // namespace android // --------------------------------------------------------------------------- #endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H