/* * 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_SURFACE_COMPOSER_CLIENT_H #define ANDROID_SF_SURFACE_COMPOSER_CLIENT_H #include <stdint.h> #include <sys/types.h> #include <binder/IBinder.h> #include <utils/RefBase.h> #include <utils/Singleton.h> #include <utils/SortedVector.h> #include <utils/threads.h> #include <ui/PixelFormat.h> #include <ui/Region.h> #include <surfaceflinger/Surface.h> namespace android { // --------------------------------------------------------------------------- class Region; class SharedClient; class ISurfaceComposer; class DisplayInfo; class surface_flinger_cblk_t; // --------------------------------------------------------------------------- class ComposerService : public Singleton<ComposerService> { // these are constants sp<ISurfaceComposer> mComposerService; sp<IMemoryHeap> mServerCblkMemory; surface_flinger_cblk_t volatile* mServerCblk; ComposerService(); friend class Singleton<ComposerService>; public: static sp<ISurfaceComposer> getComposerService(); static surface_flinger_cblk_t const volatile * getControlBlock(); }; // --------------------------------------------------------------------------- class SurfaceComposerClient : public RefBase { public: SurfaceComposerClient(); virtual ~SurfaceComposerClient(); // Always make sure we could initialize status_t initCheck() const; // Return the connection of this client sp<IBinder> connection() const; // Forcibly remove connection before all references have gone away. void dispose(); // ------------------------------------------------------------------------ // surface creation / destruction //! Create a surface sp<SurfaceControl> createSurface( int pid, // pid of the process the surface is for const String8& name,// name of the surface DisplayID display, // Display to create this surface on uint32_t w, // width in pixel uint32_t h, // height in pixel PixelFormat format, // pixel-format desired uint32_t flags = 0 // usage flags ); sp<SurfaceControl> createSurface( int pid, // pid of the process the surface is for DisplayID display, // Display to create this surface on uint32_t w, // width in pixel uint32_t h, // height in pixel PixelFormat format, // pixel-format desired uint32_t flags = 0 // usage flags ); // ------------------------------------------------------------------------ // Composer parameters // All composer parameters must be changed within a transaction // several surfaces can be updated in one transaction, all changes are // committed at once when the transaction is closed. // CloseTransaction() usually requires an IPC with the server. //! Open a composer transaction status_t openTransaction(); //! commit the transaction status_t closeTransaction(); //! Open a composer transaction on all active SurfaceComposerClients. static void openGlobalTransaction(); //! Close a composer transaction on all active SurfaceComposerClients. static void closeGlobalTransaction(); //! Freeze the specified display but not transactions. static status_t freezeDisplay(DisplayID dpy, uint32_t flags = 0); //! Resume updates on the specified display. static status_t unfreezeDisplay(DisplayID dpy, uint32_t flags = 0); //! Set the orientation of the given display static int setOrientation(DisplayID dpy, int orientation, uint32_t flags); // Query the number of displays static ssize_t getNumberOfDisplays(); // Get information about a display static status_t getDisplayInfo(DisplayID dpy, DisplayInfo* info); static ssize_t getDisplayWidth(DisplayID dpy); static ssize_t getDisplayHeight(DisplayID dpy); static ssize_t getDisplayOrientation(DisplayID dpy); status_t linkToComposerDeath(const sp<IBinder::DeathRecipient>& recipient, void* cookie = NULL, uint32_t flags = 0); status_t hide(SurfaceID id); status_t show(SurfaceID id, int32_t layer = -1); status_t freeze(SurfaceID id); status_t unfreeze(SurfaceID id); status_t setFlags(SurfaceID id, uint32_t flags, uint32_t mask); status_t setTransparentRegionHint(SurfaceID id, const Region& transparent); status_t setLayer(SurfaceID id, int32_t layer); status_t setAlpha(SurfaceID id, float alpha=1.0f); status_t setFreezeTint(SurfaceID id, uint32_t tint); status_t setMatrix(SurfaceID id, float dsdx, float dtdx, float dsdy, float dtdy); status_t setPosition(SurfaceID id, int32_t x, int32_t y); status_t setSize(SurfaceID id, uint32_t w, uint32_t h); status_t destroySurface(SurfaceID sid); private: virtual void onFirstRef(); inline layer_state_t* get_state_l(SurfaceID id); layer_state_t* lockLayerState(SurfaceID id); inline void unlockLayerState(); mutable Mutex mLock; SortedVector<layer_state_t> mStates; int32_t mTransactionOpen; layer_state_t* mPrebuiltLayerState; // these don't need to be protected because they never change // after assignment status_t mStatus; sp<ISurfaceComposerClient> mClient; }; // --------------------------------------------------------------------------- class ScreenshotClient { sp<IMemoryHeap> mHeap; uint32_t mWidth; uint32_t mHeight; PixelFormat mFormat; public: ScreenshotClient(); // frees the previous screenshot and capture a new one status_t update(); status_t update(uint32_t reqWidth, uint32_t reqHeight); status_t update(uint32_t reqWidth, uint32_t reqHeight, uint32_t minLayerZ, uint32_t maxLayerZ); // release memory occupied by the screenshot void release(); // pixels are valid until this object is freed or // release() or update() is called void const* getPixels() const; uint32_t getWidth() const; uint32_t getHeight() const; PixelFormat getFormat() const; uint32_t getStride() const; // size of allocated memory in bytes size_t getSize() const; }; // --------------------------------------------------------------------------- }; // namespace android #endif // ANDROID_SF_SURFACE_COMPOSER_CLIENT_H