| /* |
| * 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_LAYER_H |
| #define ANDROID_LAYER_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <gui/SurfaceTexture.h> |
| |
| #include <utils/Timers.h> |
| |
| #include <ui/GraphicBuffer.h> |
| #include <ui/PixelFormat.h> |
| |
| #include <gui/ISurfaceComposerClient.h> |
| |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| #include <GLES/gl.h> |
| #include <GLES/glext.h> |
| |
| #include "LayerBase.h" |
| #include "SurfaceTextureLayer.h" |
| #include "Transform.h" |
| |
| namespace android { |
| |
| // --------------------------------------------------------------------------- |
| |
| class Client; |
| class GLExtensions; |
| |
| // --------------------------------------------------------------------------- |
| |
| class Layer : public LayerBaseClient |
| { |
| public: |
| Layer(SurfaceFlinger* flinger, DisplayID display, |
| const sp<Client>& client); |
| |
| virtual ~Layer(); |
| |
| virtual const char* getTypeId() const { return "Layer"; } |
| |
| // the this layer's size and format |
| status_t setBuffers(uint32_t w, uint32_t h, |
| PixelFormat format, uint32_t flags=0); |
| |
| bool isFixedSize() const; |
| |
| // LayerBase interface |
| virtual void setGeometry(const DisplayHardware& hw, |
| HWComposer::HWCLayerInterface& layer); |
| virtual void setPerFrameData(HWComposer::HWCLayerInterface& layer); |
| virtual void setAcquireFence(HWComposer::HWCLayerInterface& layer); |
| |
| virtual void onDraw(const DisplayHardware& hw, const Region& clip) const; |
| virtual uint32_t doTransaction(uint32_t transactionFlags); |
| virtual Region latchBuffer(bool& recomputeVisibleRegions); |
| virtual bool isOpaque() const; |
| virtual bool isSecure() const { return mSecure; } |
| virtual bool isProtected() const; |
| virtual void onRemoved(); |
| virtual sp<Layer> getLayer() const { return const_cast<Layer*>(this); } |
| virtual void setName(const String8& name); |
| |
| // LayerBaseClient interface |
| virtual wp<IBinder> getSurfaceTextureBinder() const; |
| |
| virtual void onLayerDisplayed(HWComposer::HWCLayerInterface* layer); |
| virtual bool onPreComposition(); |
| |
| // only for debugging |
| inline const sp<GraphicBuffer>& getActiveBuffer() const { return mActiveBuffer; } |
| |
| protected: |
| virtual void onFirstRef(); |
| virtual void dump(String8& result, char* scratch, size_t size) const; |
| virtual void dumpStats(String8& result, char* buffer, size_t SIZE) const; |
| virtual void clearStats(); |
| |
| private: |
| friend class SurfaceTextureLayer; |
| void onFrameQueued(); |
| virtual sp<ISurface> createSurface(); |
| uint32_t getEffectiveUsage(uint32_t usage) const; |
| uint32_t getTransformHint() const; |
| bool isCropped() const; |
| Rect computeBufferCrop() const; |
| static bool getOpacityForFormat(uint32_t format); |
| |
| // ----------------------------------------------------------------------- |
| |
| // constants |
| sp<SurfaceTexture> mSurfaceTexture; |
| GLuint mTextureName; |
| |
| // thread-safe |
| volatile int32_t mQueuedFrames; |
| |
| // main thread |
| sp<GraphicBuffer> mActiveBuffer; |
| Rect mCurrentCrop; |
| uint32_t mCurrentTransform; |
| uint32_t mCurrentScalingMode; |
| bool mCurrentOpacity; |
| bool mRefreshPending; |
| bool mFrameLatencyNeeded; |
| bool mNeedHwcFence; |
| int mFrameLatencyOffset; |
| |
| struct Statistics { |
| Statistics() : timestamp(0), set(0), vsync(0) { } |
| nsecs_t timestamp; // buffer timestamp |
| nsecs_t set; // buffer displayed timestamp |
| nsecs_t vsync; // vsync immediately before set |
| }; |
| |
| // protected by mLock |
| Statistics mFrameStats[128]; |
| |
| // constants |
| PixelFormat mFormat; |
| const GLExtensions& mGLExtensions; |
| bool mOpaqueLayer; |
| |
| // page-flip thread (currently main thread) |
| bool mSecure; // no screenshots |
| bool mProtectedByApp; // application requires protected path to external sink |
| }; |
| |
| // --------------------------------------------------------------------------- |
| |
| }; // namespace android |
| |
| #endif // ANDROID_LAYER_H |