149 lines
4.6 KiB
C++
149 lines
4.6 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/PixelFormat.h>
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#include <private/ui/SharedState.h>
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#include <private/ui/LayerState.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 "LayerBitmap.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 LayerBitmap;
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class MemoryDealer;
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class FreezeLock;
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// ---------------------------------------------------------------------------
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const int 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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Client* c, int32_t i);
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virtual ~Layer();
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inline PixelFormat pixelFormat() const {
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return frontBuffer().getPixelFormat();
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}
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status_t setBuffers( Client* client,
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uint32_t w, uint32_t h,
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PixelFormat format, uint32_t flags=0);
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virtual void onDraw(const Region& clip) const;
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virtual void initStates(uint32_t w, uint32_t h, uint32_t flags);
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virtual void setSizeChanged(uint32_t w, uint32_t h);
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virtual uint32_t doTransaction(uint32_t transactionFlags);
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virtual Point getPhysicalSize() const;
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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 isSecure() const { return mSecure; }
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virtual sp<Surface> createSurface() const;
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const LayerBitmap& getBuffer(int i) const { return mBuffers[i]; }
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LayerBitmap& getBuffer(int i) { return mBuffers[i]; }
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// only for debugging
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const sp<FreezeLock>& getFreezeLock() const { return mFreezeLock; }
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private:
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inline const LayerBitmap&
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frontBuffer() const { return getBuffer(mFrontBufferIndex); }
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inline LayerBitmap&
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frontBuffer() { return getBuffer(mFrontBufferIndex); }
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inline const LayerBitmap&
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backBuffer() const { return getBuffer(1-mFrontBufferIndex); }
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inline LayerBitmap&
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backBuffer() { return getBuffer(1-mFrontBufferIndex); }
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void reloadTexture(const Region& dirty);
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status_t resize(int32_t index, uint32_t w, uint32_t h, const char* what);
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Region post(uint32_t* oldState, bool& recomputeVisibleRegions);
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sp<SurfaceBuffer> peekBuffer();
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class SurfaceLayer : public LayerBaseClient::Surface
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{
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public:
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SurfaceLayer(SurfaceID id, const sp<Layer>& owner);
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private:
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virtual sp<SurfaceBuffer> getBuffer();
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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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struct Texture {
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Texture() : name(-1U), width(0), height(0), image(EGL_NO_IMAGE_KHR),
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dirty(true) { }
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GLuint name;
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GLuint width;
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GLuint height;
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EGLImageKHR image;
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bool dirty;
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};
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sp<Surface> mSurface;
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bool mSecure;
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LayerBitmap mBuffers[NUM_BUFFERS];
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Texture mTextures[NUM_BUFFERS];
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int32_t mFrontBufferIndex;
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bool mNeedsBlending;
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bool mResizeTransactionDone;
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Region mPostedDirtyRegion;
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sp<FreezeLock> mFreezeLock;
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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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