michael@0: /*
michael@0:  * Copyright (C) 2007 The Android Open Source Project
michael@0:  *
michael@0:  * Licensed under the Apache License, Version 2.0 (the "License");
michael@0:  * you may not use this file except in compliance with the License.
michael@0:  * You may obtain a copy of the License at
michael@0:  *
michael@0:  *      http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing, software
michael@0:  * distributed under the License is distributed on an "AS IS" BASIS,
michael@0:  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0:  * See the License for the specific language governing permissions and
michael@0:  * limitations under the License.
michael@0:  */
michael@0: 
michael@0: #ifndef ANDROID_SF_FRAMEBUFFER_SURFACE_H
michael@0: #define ANDROID_SF_FRAMEBUFFER_SURFACE_H
michael@0: 
michael@0: #include <stdint.h>
michael@0: #include <sys/types.h>
michael@0: 
michael@0: #include <gui/ConsumerBase.h>
michael@0: 
michael@0: // ---------------------------------------------------------------------------
michael@0: namespace android {
michael@0: // ---------------------------------------------------------------------------
michael@0: 
michael@0: class Rect;
michael@0: class String8;
michael@0: class HWComposer;
michael@0: 
michael@0: // ---------------------------------------------------------------------------
michael@0: 
michael@0: class FramebufferSurface : public ConsumerBase {
michael@0: public:
michael@0:     FramebufferSurface(int disp, uint32_t width, uint32_t height, uint32_t format, sp<BufferQueue>& bq);
michael@0: 
michael@0:     bool isUpdateOnDemand() const { return false; }
michael@0:     status_t setUpdateRectangle(const Rect& updateRect);
michael@0:     status_t compositionComplete();
michael@0: 
michael@0:     virtual void dump(String8& result);
michael@0:     virtual void dump(String8& result, const char* prefix);
michael@0: 
michael@0:     // setReleaseFenceFd stores a fence file descriptor that will signal when the
michael@0:     // current buffer is no longer being read. This fence will be returned to
michael@0:     // the producer when the current buffer is released by updateTexImage().
michael@0:     // Multiple fences can be set for a given buffer; they will be merged into
michael@0:     // a single union fence. The SurfaceTexture will close the file descriptor
michael@0:     // when finished with it.
michael@0:     status_t setReleaseFenceFd(int fenceFd);
michael@0: 
michael@0:     virtual int GetPrevFBAcquireFd();
michael@0: 
michael@0:     buffer_handle_t lastHandle;
michael@0: private:
michael@0:     virtual ~FramebufferSurface() { }; // this class cannot be overloaded
michael@0: 
michael@0:     virtual void onFrameAvailable();
michael@0:     virtual void freeBufferLocked(int slotIndex);
michael@0: 
michael@0:     // nextBuffer waits for and then latches the next buffer from the
michael@0:     // BufferQueue and releases the previously latched buffer to the
michael@0:     // BufferQueue.  The new buffer is returned in the 'buffer' argument.
michael@0:     status_t nextBuffer(sp<GraphicBuffer>& outBuffer, sp<Fence>& outFence);
michael@0: 
michael@0:     // mDisplayType must match one of the HWC display types
michael@0:     int mDisplayType;
michael@0: 
michael@0:     // mCurrentBufferIndex is the slot index of the current buffer or
michael@0:     // INVALID_BUFFER_SLOT to indicate that either there is no current buffer
michael@0:     // or the buffer is not associated with a slot.
michael@0:     int mCurrentBufferSlot;
michael@0: 
michael@0:     // mCurrentBuffer is the current buffer or NULL to indicate that there is
michael@0:     // no current buffer.
michael@0:     sp<GraphicBuffer> mCurrentBuffer;
michael@0: 
michael@0:     android::sp<android::Fence> mPrevFBAcquireFence;
michael@0: };
michael@0: 
michael@0: // ---------------------------------------------------------------------------
michael@0: }; // namespace android
michael@0: // ---------------------------------------------------------------------------
michael@0: 
michael@0: #endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H
michael@0: