1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_LAYER_BLUR_H 18#define ANDROID_LAYER_BLUR_H 19 20#include <stdint.h> 21#include <sys/types.h> 22 23#include <ui/Region.h> 24 25#include "LayerBase.h" 26 27namespace android { 28 29// --------------------------------------------------------------------------- 30 31class LayerBlur : public LayerBaseClient 32{ 33public: 34 static const uint32_t typeInfo; 35 static const char* const typeID; 36 virtual char const* getTypeID() const { return typeID; } 37 virtual uint32_t getTypeInfo() const { return typeInfo; } 38 39 LayerBlur(SurfaceFlinger* flinger, DisplayID display, 40 const sp<Client>& client, int32_t i); 41 virtual ~LayerBlur(); 42 43 virtual void onDraw(const Region& clip) const; 44 virtual bool needsBlending() const { return true; } 45 virtual bool isSecure() const { return false; } 46 47 virtual uint32_t doTransaction(uint32_t flags); 48 virtual void setVisibleRegion(const Region& visibleRegion); 49 virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion); 50 51private: 52 bool mCacheDirty; 53 mutable bool mRefreshCache; 54 mutable bool mAutoRefreshPending; 55 nsecs_t mCacheAge; 56 mutable GLuint mTextureName; 57 mutable GLfloat mWidthScale; 58 mutable GLfloat mHeightScale; 59 mutable GLfloat mYOffset; 60 mutable GLint mReadFormat; 61 mutable GLint mReadType; 62 mutable uint32_t mBlurFormat; 63}; 64 65// --------------------------------------------------------------------------- 66 67}; // namespace android 68 69#endif // ANDROID_LAYER_BLUR_H 70