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Diffstat (limited to 'services/surfaceflinger/LayerBuffer.h')
| -rw-r--r-- | services/surfaceflinger/LayerBuffer.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/services/surfaceflinger/LayerBuffer.h b/services/surfaceflinger/LayerBuffer.h new file mode 100644 index 0000000..1c0bf83 --- /dev/null +++ b/services/surfaceflinger/LayerBuffer.h @@ -0,0 +1,220 @@ +/* + * 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_BUFFER_H +#define ANDROID_LAYER_BUFFER_H + +#include <stdint.h> +#include <sys/types.h> + +#include "LayerBase.h" +#include "TextureManager.h" + +struct copybit_device_t; + +namespace android { + +// --------------------------------------------------------------------------- + +class Buffer; +class Region; +class OverlayRef; + +// --------------------------------------------------------------------------- + +class LayerBuffer : public LayerBaseClient +{ + class Source : public LightRefBase<Source> { + public: + Source(LayerBuffer& layer); + virtual ~Source(); + virtual void onDraw(const Region& clip) const; + virtual void onTransaction(uint32_t flags); + virtual void onVisibilityResolved(const Transform& planeTransform); + virtual void postBuffer(ssize_t offset); + virtual void unregisterBuffers(); + virtual void destroy() { } + SurfaceFlinger* getFlinger() const { return mLayer.mFlinger.get(); } + protected: + LayerBuffer& mLayer; + }; + +public: + LayerBuffer(SurfaceFlinger* flinger, DisplayID display, + const sp<Client>& client); + virtual ~LayerBuffer(); + + virtual void onFirstRef(); + virtual bool needsBlending() const; + virtual const char* getTypeId() const { return "LayerBuffer"; } + + virtual sp<LayerBaseClient::Surface> createSurface() const; + virtual status_t ditch(); + virtual void onDraw(const Region& clip) const; + virtual uint32_t doTransaction(uint32_t flags); + virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion); + + status_t registerBuffers(const ISurface::BufferHeap& buffers); + void postBuffer(ssize_t offset); + void unregisterBuffers(); + sp<OverlayRef> createOverlay(uint32_t w, uint32_t h, int32_t format, + int32_t orientation); + + sp<Source> getSource() const; + sp<Source> clearSource(); + void setNeedsBlending(bool blending); + Rect getTransformedBounds() const { + return mTransformedBounds; + } + + void serverDestroy(); + +private: + struct NativeBuffer { + copybit_image_t img; + copybit_rect_t crop; + }; + + static gralloc_module_t const* sGrallocModule; + static gralloc_module_t const* getGrallocModule() { + return sGrallocModule; + } + + class Buffer : public LightRefBase<Buffer> { + public: + Buffer(const ISurface::BufferHeap& buffers, + ssize_t offset, size_t bufferSize); + inline bool supportsCopybit() const { + return mSupportsCopybit; + } + inline status_t getStatus() const { + return mBufferHeap.heap!=0 ? NO_ERROR : NO_INIT; + } + inline const NativeBuffer& getBuffer() const { + return mNativeBuffer; + } + protected: + friend class LightRefBase<Buffer>; + Buffer& operator = (const Buffer& rhs); + Buffer(const Buffer& rhs); + ~Buffer(); + private: + ISurface::BufferHeap mBufferHeap; + NativeBuffer mNativeBuffer; + bool mSupportsCopybit; + }; + + class BufferSource : public Source { + public: + BufferSource(LayerBuffer& layer, const ISurface::BufferHeap& buffers); + virtual ~BufferSource(); + + status_t getStatus() const { return mStatus; } + sp<Buffer> getBuffer() const; + void setBuffer(const sp<Buffer>& buffer); + + virtual void onDraw(const Region& clip) const; + virtual void postBuffer(ssize_t offset); + virtual void unregisterBuffers(); + virtual void destroy() { } + private: + status_t initTempBuffer() const; + void clearTempBufferImage() const; + mutable Mutex mBufferSourceLock; + sp<Buffer> mBuffer; + status_t mStatus; + ISurface::BufferHeap mBufferHeap; + size_t mBufferSize; + mutable Texture mTexture; + mutable NativeBuffer mTempBuffer; + mutable TextureManager mTextureManager; + }; + + class OverlaySource : public Source { + public: + OverlaySource(LayerBuffer& layer, + sp<OverlayRef>* overlayRef, + uint32_t w, uint32_t h, int32_t format, int32_t orientation); + virtual ~OverlaySource(); + virtual void onDraw(const Region& clip) const; + virtual void onTransaction(uint32_t flags); + virtual void onVisibilityResolved(const Transform& planeTransform); + virtual void destroy(); + private: + + class OverlayChannel : public BnOverlay { + wp<LayerBuffer> mLayer; + virtual void destroy() { + sp<LayerBuffer> layer(mLayer.promote()); + if (layer != 0) { + layer->serverDestroy(); + } + } + public: + OverlayChannel(const sp<LayerBuffer>& layer) + : mLayer(layer) { + } + }; + + friend class OverlayChannel; + bool mVisibilityChanged; + + overlay_t* mOverlay; + overlay_handle_t mOverlayHandle; + overlay_control_device_t* mOverlayDevice; + uint32_t mWidth; + uint32_t mHeight; + int32_t mFormat; + int32_t mWidthStride; + int32_t mHeightStride; + int32_t mOrientation; + mutable Mutex mOverlaySourceLock; + bool mInitialized; + }; + + + class SurfaceLayerBuffer : public LayerBaseClient::Surface + { + public: + SurfaceLayerBuffer(const sp<SurfaceFlinger>& flinger, + const sp<LayerBuffer>& owner); + virtual ~SurfaceLayerBuffer(); + + virtual status_t registerBuffers(const ISurface::BufferHeap& buffers); + virtual void postBuffer(ssize_t offset); + virtual void unregisterBuffers(); + + virtual sp<OverlayRef> createOverlay( + uint32_t w, uint32_t h, int32_t format, int32_t orientation); + private: + sp<LayerBuffer> getOwner() const { + return static_cast<LayerBuffer*>(Surface::getOwner().get()); + } + }; + + mutable Mutex mLock; + sp<Source> mSource; + sp<Surface> mSurface; + bool mInvalidate; + bool mNeedsBlending; + copybit_device_t* mBlitEngine; +}; + +// --------------------------------------------------------------------------- + +}; // namespace android + +#endif // ANDROID_LAYER_BUFFER_H |