135 lines
4.2 KiB
C++
135 lines
4.2 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_LAYER_H
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#define ANDROID_LAYER_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <ui/GraphicBuffer.h>
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#include <ui/PixelFormat.h>
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#include <pixelflinger/pixelflinger.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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#include "LayerBase.h"
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#include "Transform.h"
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namespace android {
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// ---------------------------------------------------------------------------
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class Client;
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class FreezeLock;
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// ---------------------------------------------------------------------------
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const size_t NUM_BUFFERS = 2;
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class Layer : public LayerBaseClient
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{
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public:
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static const uint32_t typeInfo;
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static const char* const typeID;
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virtual char const* getTypeID() const { return typeID; }
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virtual uint32_t getTypeInfo() const { return typeInfo; }
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Layer(SurfaceFlinger* flinger, DisplayID display,
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const sp<Client>& client, int32_t i);
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virtual ~Layer();
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status_t setBuffers(uint32_t w, uint32_t h,
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PixelFormat format, uint32_t flags=0);
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void setDrawingSize(uint32_t w, uint32_t h);
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virtual void onDraw(const Region& clip) const;
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virtual uint32_t doTransaction(uint32_t transactionFlags);
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virtual void lockPageFlip(bool& recomputeVisibleRegions);
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virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion);
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virtual void finishPageFlip();
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virtual bool needsBlending() const { return mNeedsBlending; }
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virtual bool needsDithering() const { return mNeedsDithering; }
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virtual bool isSecure() const { return mSecure; }
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virtual sp<Surface> createSurface() const;
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virtual status_t ditch();
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// only for debugging
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inline sp<GraphicBuffer> getBuffer(int i) { return mBuffers[i]; }
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// only for debugging
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inline const sp<FreezeLock>& getFreezeLock() const { return mFreezeLock; }
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// only for debugging
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inline PixelFormat pixelFormat() const { return mFormat; }
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// only for debugging
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inline int getFrontBufferIndex() const { return mFrontBufferIndex; }
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private:
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inline sp<GraphicBuffer> getFrontBufferLocked() {
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return mBuffers[mFrontBufferIndex];
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}
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void reloadTexture(const Region& dirty);
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uint32_t getEffectiveUsage(uint32_t usage) const;
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sp<GraphicBuffer> requestBuffer(int index, int usage);
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void destroy();
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class SurfaceLayer : public LayerBaseClient::Surface {
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public:
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SurfaceLayer(const sp<SurfaceFlinger>& flinger,
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SurfaceID id, const sp<Layer>& owner);
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~SurfaceLayer();
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private:
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virtual sp<GraphicBuffer> requestBuffer(int index, int usage);
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sp<Layer> getOwner() const {
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return static_cast<Layer*>(Surface::getOwner().get());
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}
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};
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friend class SurfaceLayer;
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sp<Surface> mSurface;
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bool mSecure;
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bool mNoEGLImageForSwBuffers;
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int32_t mFrontBufferIndex;
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bool mNeedsBlending;
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bool mNeedsDithering;
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Region mPostedDirtyRegion;
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sp<FreezeLock> mFreezeLock;
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PixelFormat mFormat;
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// protected by mLock
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sp<GraphicBuffer> mBuffers[NUM_BUFFERS];
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Texture mTextures[NUM_BUFFERS];
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sp<GraphicBuffer> mHybridBuffer;
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uint32_t mWidth;
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uint32_t mHeight;
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mutable Mutex mLock;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_LAYER_H
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