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 27 namespace android { 28 29 // --------------------------------------------------------------------------- 30 31 class LayerBlur : public LayerBaseClient 32 { 33 public: 34 LayerBlur(SurfaceFlinger* flinger, DisplayID display, 35 const sp<Client>& client); 36 virtual ~LayerBlur(); 37 38 virtual void onDraw(const Region& clip) const; needsBlending()39 virtual bool needsBlending() const { return true; } isSecure()40 virtual bool isSecure() const { return false; } getTypeId()41 virtual const char* getTypeId() const { return "LayerBlur"; } 42 43 virtual uint32_t doTransaction(uint32_t flags); 44 virtual void setVisibleRegion(const Region& visibleRegion); 45 virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion); 46 47 private: 48 bool mCacheDirty; 49 mutable bool mRefreshCache; 50 mutable bool mAutoRefreshPending; 51 nsecs_t mCacheAge; 52 mutable GLuint mTextureName; 53 mutable GLfloat mWidthScale; 54 mutable GLfloat mHeightScale; 55 mutable GLfloat mYOffset; 56 mutable GLint mReadFormat; 57 mutable GLint mReadType; 58 mutable uint32_t mBlurFormat; 59 }; 60 61 // --------------------------------------------------------------------------- 62 63 }; // namespace android 64 65 #endif // ANDROID_LAYER_BLUR_H 66