1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/gonk/libdisplay/FramebufferSurface.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,88 @@
1.4 +/*
1.5 + * Copyright (C) 2007 The Android Open Source Project
1.6 + *
1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
1.8 + * you may not use this file except in compliance with the License.
1.9 + * You may obtain a copy of the License at
1.10 + *
1.11 + * http://www.apache.org/licenses/LICENSE-2.0
1.12 + *
1.13 + * Unless required by applicable law or agreed to in writing, software
1.14 + * distributed under the License is distributed on an "AS IS" BASIS,
1.15 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.16 + * See the License for the specific language governing permissions and
1.17 + * limitations under the License.
1.18 + */
1.19 +
1.20 +#ifndef ANDROID_SF_FRAMEBUFFER_SURFACE_H
1.21 +#define ANDROID_SF_FRAMEBUFFER_SURFACE_H
1.22 +
1.23 +#include <stdint.h>
1.24 +#include <sys/types.h>
1.25 +
1.26 +#include <gui/ConsumerBase.h>
1.27 +
1.28 +// ---------------------------------------------------------------------------
1.29 +namespace android {
1.30 +// ---------------------------------------------------------------------------
1.31 +
1.32 +class Rect;
1.33 +class String8;
1.34 +class HWComposer;
1.35 +
1.36 +// ---------------------------------------------------------------------------
1.37 +
1.38 +class FramebufferSurface : public ConsumerBase {
1.39 +public:
1.40 + FramebufferSurface(int disp, uint32_t width, uint32_t height, uint32_t format, sp<BufferQueue>& bq);
1.41 +
1.42 + bool isUpdateOnDemand() const { return false; }
1.43 + status_t setUpdateRectangle(const Rect& updateRect);
1.44 + status_t compositionComplete();
1.45 +
1.46 + virtual void dump(String8& result);
1.47 + virtual void dump(String8& result, const char* prefix);
1.48 +
1.49 + // setReleaseFenceFd stores a fence file descriptor that will signal when the
1.50 + // current buffer is no longer being read. This fence will be returned to
1.51 + // the producer when the current buffer is released by updateTexImage().
1.52 + // Multiple fences can be set for a given buffer; they will be merged into
1.53 + // a single union fence. The SurfaceTexture will close the file descriptor
1.54 + // when finished with it.
1.55 + status_t setReleaseFenceFd(int fenceFd);
1.56 +
1.57 + virtual int GetPrevFBAcquireFd();
1.58 +
1.59 + buffer_handle_t lastHandle;
1.60 +private:
1.61 + virtual ~FramebufferSurface() { }; // this class cannot be overloaded
1.62 +
1.63 + virtual void onFrameAvailable();
1.64 + virtual void freeBufferLocked(int slotIndex);
1.65 +
1.66 + // nextBuffer waits for and then latches the next buffer from the
1.67 + // BufferQueue and releases the previously latched buffer to the
1.68 + // BufferQueue. The new buffer is returned in the 'buffer' argument.
1.69 + status_t nextBuffer(sp<GraphicBuffer>& outBuffer, sp<Fence>& outFence);
1.70 +
1.71 + // mDisplayType must match one of the HWC display types
1.72 + int mDisplayType;
1.73 +
1.74 + // mCurrentBufferIndex is the slot index of the current buffer or
1.75 + // INVALID_BUFFER_SLOT to indicate that either there is no current buffer
1.76 + // or the buffer is not associated with a slot.
1.77 + int mCurrentBufferSlot;
1.78 +
1.79 + // mCurrentBuffer is the current buffer or NULL to indicate that there is
1.80 + // no current buffer.
1.81 + sp<GraphicBuffer> mCurrentBuffer;
1.82 +
1.83 + android::sp<android::Fence> mPrevFBAcquireFence;
1.84 +};
1.85 +
1.86 +// ---------------------------------------------------------------------------
1.87 +}; // namespace android
1.88 +// ---------------------------------------------------------------------------
1.89 +
1.90 +#endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H
1.91 +
