DeferredLayerUpdater.h revision d41c4d8c732095ae99c955b6b82f7306633004b1
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 "renderthread/RenderThread.h" 28 29namespace android { 30namespace uirenderer { 31 32// Container to hold the properties a layer should be set to at the start 33// of a render pass 34class DeferredLayerUpdater : public VirtualLightRefBase { 35public: 36 // Note that DeferredLayerUpdater assumes it is taking ownership of the layer 37 // and will not call incrementRef on it as a result. 38 ANDROID_API DeferredLayerUpdater(renderthread::RenderThread& thread, Layer* layer); 39 ANDROID_API ~DeferredLayerUpdater(); 40 41 ANDROID_API bool setSize(int width, int height) { 42 if (mWidth != width || mHeight != height) { 43 mWidth = width; 44 mHeight = height; 45 return true; 46 } 47 return false; 48 } 49 50 ANDROID_API bool setBlend(bool blend) { 51 if (blend != mBlend) { 52 mBlend = blend; 53 return true; 54 } 55 return false; 56 } 57 58 ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture, bool needsAttach) { 59 if (texture.get() != mSurfaceTexture.get()) { 60 mNeedsGLContextAttach = needsAttach; 61 mSurfaceTexture = texture; 62 } 63 } 64 65 ANDROID_API void updateTexImage() { 66 mUpdateTexImage = true; 67 } 68 69 ANDROID_API void setTransform(const SkMatrix* matrix) { 70 delete mTransform; 71 mTransform = matrix ? new SkMatrix(*matrix) : nullptr; 72 } 73 74 ANDROID_API void setPaint(const SkPaint* paint); 75 76 ANDROID_API bool apply(); 77 78 Layer* backingLayer() { 79 return mLayer; 80 } 81 82 ANDROID_API void detachSurfaceTexture(); 83 84private: 85 // Generic properties 86 int mWidth; 87 int 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 renderthread::RenderThread& mRenderThread; 101 102 void doUpdateTexImage(); 103}; 104 105} /* namespace uirenderer */ 106} /* namespace android */ 107 108#endif /* DEFERREDLAYERUPDATE_H_ */ 109