DeferredLayerUpdater.h revision 68bfe0a37a0dcef52abd81688d8520c5d16e1a85
1/* 2 * Copyright (C) 2014 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#ifndef DEFERREDLAYERUPDATE_H_ 17#define DEFERREDLAYERUPDATE_H_ 18 19#include <cutils/compiler.h> 20#include <gui/GLConsumer.h> 21#include <SkColorFilter.h> 22#include <SkMatrix.h> 23#include <utils/StrongPointer.h> 24 25#include "Layer.h" 26#include "Rect.h" 27#include "RenderNode.h" 28 29namespace android { 30namespace uirenderer { 31 32typedef void (*LayerDestroyer)(Layer* layer); 33 34// Container to hold the properties a layer should be set to at the start 35// of a render pass 36class DeferredLayerUpdater : public VirtualLightRefBase { 37public: 38 // Note that DeferredLayerUpdater assumes it is taking ownership of the layer 39 // and will not call incrementRef on it as a result. 40 ANDROID_API DeferredLayerUpdater(Layer* layer, LayerDestroyer = 0); 41 ANDROID_API ~DeferredLayerUpdater(); 42 43 ANDROID_API bool setSize(uint32_t width, uint32_t height) { 44 if (mWidth != width || mHeight != height) { 45 mWidth = width; 46 mHeight = height; 47 return true; 48 } 49 return false; 50 } 51 52 ANDROID_API bool setBlend(bool blend) { 53 if (blend != mBlend) { 54 mBlend = blend; 55 return true; 56 } 57 return false; 58 } 59 60 ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture, bool needsAttach) { 61 if (texture.get() != mSurfaceTexture.get()) { 62 mNeedsGLContextAttach = needsAttach; 63 mSurfaceTexture = texture; 64 } 65 } 66 67 ANDROID_API void updateTexImage() { 68 mUpdateTexImage = true; 69 } 70 71 ANDROID_API void setTransform(const SkMatrix* matrix) { 72 delete mTransform; 73 mTransform = matrix ? new SkMatrix(*matrix) : 0; 74 } 75 76 ANDROID_API void setPaint(const SkPaint* paint); 77 78 ANDROID_API bool apply(); 79 80 ANDROID_API Layer* backingLayer() { 81 return mLayer; 82 } 83 84private: 85 // Generic properties 86 uint32_t mWidth; 87 uint32_t mHeight; 88 bool mBlend; 89 SkColorFilter* mColorFilter; 90 int mAlpha; 91 SkXfermode::Mode mMode; 92 93 sp<GLConsumer> mSurfaceTexture; 94 SkMatrix* mTransform; 95 bool mNeedsGLContextAttach; 96 bool mUpdateTexImage; 97 98 Layer* mLayer; 99 Caches& mCaches; 100 101 LayerDestroyer mDestroyer; 102 103 void doUpdateTexImage(); 104}; 105 106} /* namespace uirenderer */ 107} /* namespace android */ 108 109#endif /* DEFERREDLAYERUPDATE_H_ */ 110