diff options
Diffstat (limited to 'libs/surfaceflinger/Layer.h')
| -rw-r--r-- | libs/surfaceflinger/Layer.h | 201 |
1 files changed, 152 insertions, 49 deletions
diff --git a/libs/surfaceflinger/Layer.h b/libs/surfaceflinger/Layer.h index 743afb4..dcb27a0 100644 --- a/libs/surfaceflinger/Layer.h +++ b/libs/surfaceflinger/Layer.h @@ -31,36 +31,42 @@ #include "LayerBase.h" #include "Transform.h" +#include "TextureManager.h" namespace android { // --------------------------------------------------------------------------- class Client; +class UserClient; class FreezeLock; // --------------------------------------------------------------------------- -const size_t NUM_BUFFERS = 2; - class Layer : public LayerBaseClient { -public: - static const uint32_t typeInfo; - static const char* const typeID; - virtual char const* getTypeID() const { return typeID; } - virtual uint32_t getTypeInfo() const { return typeInfo; } - - Layer(SurfaceFlinger* flinger, DisplayID display, - const sp<Client>& client, int32_t i); +public: + Layer(SurfaceFlinger* flinger, DisplayID display, + const sp<Client>& client); + + virtual ~Layer(); - 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); - void setDrawingSize(uint32_t w, uint32_t h); + // associate a UserClient to this Layer + status_t setToken(const sp<UserClient>& uc, SharedClient* sc, int32_t idx); + int32_t getToken() const; + sp<UserClient> getClient() const; + + // Set this Layer's buffers size + void setBufferSize(uint32_t w, uint32_t h); + bool isFixedSize() const; + // LayerBase interface virtual void onDraw(const Region& clip) const; virtual uint32_t doTransaction(uint32_t transactionFlags); virtual void lockPageFlip(bool& recomputeVisibleRegions); @@ -68,63 +74,160 @@ public: virtual void finishPageFlip(); virtual bool needsBlending() const { return mNeedsBlending; } virtual bool needsDithering() const { return mNeedsDithering; } + virtual bool needsFiltering() const; virtual bool isSecure() const { return mSecure; } virtual sp<Surface> createSurface() const; virtual status_t ditch(); - - // only for debugging - inline sp<GraphicBuffer> getBuffer(int i) { return mBuffers[i]; } - // only for debugging - inline const sp<FreezeLock>& getFreezeLock() const { return mFreezeLock; } + virtual void onRemoved(); + // only for debugging - inline PixelFormat pixelFormat() const { return mFormat; } + inline sp<GraphicBuffer> getBuffer(int i) const { + return mBufferManager.getBuffer(i); } // only for debugging - inline int getFrontBufferIndex() const { return mFrontBufferIndex; } + inline const sp<FreezeLock>& getFreezeLock() const { + return mFreezeLock; } + +protected: + virtual void dump(String8& result, char* scratch, size_t size) const; private: - inline sp<GraphicBuffer> getFrontBufferLocked() { - return mBuffers[mFrontBufferIndex]; - } - void reloadTexture(const Region& dirty); - uint32_t getEffectiveUsage(uint32_t usage) const; + sp<GraphicBuffer> requestBuffer(int bufferIdx, + uint32_t w, uint32_t h, uint32_t format, uint32_t usage); + status_t setBufferCount(int bufferCount); - sp<GraphicBuffer> requestBuffer(int index, int usage); - void destroy(); + // ----------------------------------------------------------------------- class SurfaceLayer : public LayerBaseClient::Surface { public: - SurfaceLayer(const sp<SurfaceFlinger>& flinger, - SurfaceID id, const sp<Layer>& owner); + SurfaceLayer(const sp<SurfaceFlinger>& flinger, const sp<Layer>& owner); ~SurfaceLayer(); private: - virtual sp<GraphicBuffer> requestBuffer(int index, int usage); + virtual sp<GraphicBuffer> requestBuffer(int bufferIdx, + uint32_t w, uint32_t h, uint32_t format, uint32_t usage); + virtual status_t setBufferCount(int bufferCount); sp<Layer> getOwner() const { return static_cast<Layer*>(Surface::getOwner().get()); } }; friend class SurfaceLayer; - - sp<Surface> mSurface; - - bool mSecure; - bool mNoEGLImageForSwBuffers; - int32_t mFrontBufferIndex; - bool mNeedsBlending; - bool mNeedsDithering; - Region mPostedDirtyRegion; - sp<FreezeLock> mFreezeLock; - PixelFormat mFormat; - - // protected by mLock - sp<GraphicBuffer> mBuffers[NUM_BUFFERS]; - Texture mTextures[NUM_BUFFERS]; - sp<GraphicBuffer> mHybridBuffer; - uint32_t mWidth; - uint32_t mHeight; - - mutable Mutex mLock; + + // ----------------------------------------------------------------------- + + class ClientRef { + ClientRef(const ClientRef& rhs); + ClientRef& operator = (const ClientRef& rhs); + mutable Mutex mLock; + // binder thread, page-flip thread + sp<SharedBufferServer> mControlBlock; + wp<UserClient> mUserClient; + int32_t mToken; + public: + ClientRef(); + ~ClientRef(); + int32_t getToken() const; + sp<UserClient> getClient() const; + status_t setToken(const sp<UserClient>& uc, + const sp<SharedBufferServer>& sharedClient, int32_t token); + sp<UserClient> getUserClientUnsafe() const; + class Access { + Access(const Access& rhs); + Access& operator = (const Access& rhs); + sp<UserClient> mUserClientStrongRef; + sp<SharedBufferServer> mControlBlock; + public: + Access(const ClientRef& ref); + ~Access(); + inline SharedBufferServer* get() const { return mControlBlock.get(); } + }; + friend class Access; + }; + + // ----------------------------------------------------------------------- + + class BufferManager { + static const size_t NUM_BUFFERS = 2; + struct BufferData { + sp<GraphicBuffer> buffer; + Image texture; + }; + // this lock protect mBufferData[].buffer but since there + // is very little contention, we have only one like for + // the whole array, we also use it to protect mNumBuffers. + mutable Mutex mLock; + BufferData mBufferData[SharedBufferStack::NUM_BUFFER_MAX]; + size_t mNumBuffers; + Texture mFailoverTexture; + TextureManager& mTextureManager; + ssize_t mActiveBuffer; + bool mFailover; + static status_t destroyTexture(Image* tex, EGLDisplay dpy); + + public: + static size_t getDefaultBufferCount() { return NUM_BUFFERS; } + BufferManager(TextureManager& tm); + ~BufferManager(); + + // detach/attach buffer from/to given index + sp<GraphicBuffer> detachBuffer(size_t index); + status_t attachBuffer(size_t index, const sp<GraphicBuffer>& buffer); + // resize the number of active buffers + status_t resize(size_t size); + + // ---------------------------------------------- + // must be called from GL thread + + // set/get active buffer index + status_t setActiveBufferIndex(size_t index); + size_t getActiveBufferIndex() const; + // return the active buffer + sp<GraphicBuffer> getActiveBuffer() const; + // return the active texture (or fail-over) + Texture getActiveTexture() const; + // frees resources associated with all buffers + status_t destroy(EGLDisplay dpy); + // load bitmap data into the active buffer + status_t loadTexture(const Region& dirty, const GGLSurface& t); + // make active buffer an EGLImage if needed + status_t initEglImage(EGLDisplay dpy, + const sp<GraphicBuffer>& buffer); + + // ---------------------------------------------- + // only for debugging + sp<GraphicBuffer> getBuffer(size_t index) const; + }; + + // ----------------------------------------------------------------------- + + // thread-safe + ClientRef mUserClientRef; + + // constants + sp<Surface> mSurface; + PixelFormat mFormat; + bool mNeedsBlending; + bool mNeedsDithering; + + // page-flip thread (currently main thread) + bool mSecure; + Region mPostedDirtyRegion; + + // page-flip thread and transaction thread (currently main thread) + sp<FreezeLock> mFreezeLock; + + // see threading usage in declaration + TextureManager mTextureManager; + BufferManager mBufferManager; + + // binder thread, transaction thread + mutable Mutex mLock; + uint32_t mWidth; + uint32_t mHeight; + uint32_t mReqWidth; + uint32_t mReqHeight; + uint32_t mReqFormat; + bool mFixedSize; }; // --------------------------------------------------------------------------- |