DeferredLayerUpdater.h revision 04fc583c3dd3144bc6b718fcac4b3e1afdfdb067
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 "DisplayList.h" 26#include "Layer.h" 27#include "OpenGLRenderer.h" 28#include "Rect.h" 29 30namespace android { 31namespace uirenderer { 32 33// Container to hold the properties a layer should be set to at the start 34// of a render pass 35class DeferredLayerUpdater { 36public: 37 ANDROID_API DeferredLayerUpdater(Layer* layer, OpenGLRenderer* renderer = 0); 38 ANDROID_API ~DeferredLayerUpdater(); 39 40 ANDROID_API bool setSize(uint32_t width, uint32_t height) { 41 if (mWidth != width || mHeight != height) { 42 mWidth = width; 43 mHeight = height; 44 return true; 45 } 46 return false; 47 } 48 49 ANDROID_API bool setBlend(bool blend) { 50 if (blend != mBlend) { 51 mBlend = blend; 52 return true; 53 } 54 return false; 55 } 56 57 ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture, bool needsAttach) { 58 if (texture.get() != mSurfaceTexture.get()) { 59 mNeedsGLContextAttach = needsAttach; 60 mSurfaceTexture = texture; 61 } 62 } 63 64 ANDROID_API void updateTexImage() { 65 mUpdateTexImage = true; 66 } 67 68 ANDROID_API void setTransform(const SkMatrix* matrix) { 69 delete mTransform; 70 mTransform = matrix ? new SkMatrix(*matrix) : 0; 71 } 72 73 ANDROID_API void setDisplayList(DisplayList* displayList, 74 int left, int top, int right, int bottom); 75 76 ANDROID_API void setPaint(const SkPaint* paint) { 77 OpenGLRenderer::getAlphaAndModeDirect(paint, &mAlpha, &mMode); 78 } 79 80 ANDROID_API void setColorFilter(SkColorFilter* colorFilter); 81 82 ANDROID_API bool apply(); 83 ANDROID_API void applyDeferred(DeferredLayerUpdater* deferredApply); 84 85 ANDROID_API Layer* backingLayer() { 86 return mLayer; 87 } 88 89 ANDROID_API Layer* detachBackingLayer() { 90 Layer* layer = mLayer; 91 mLayer = 0; 92 return layer; 93 } 94 95private: 96 // Generic properties 97 uint32_t mWidth; 98 uint32_t mHeight; 99 bool mBlend; 100 SkColorFilter* mColorFilter; 101 int mAlpha; 102 SkXfermode::Mode mMode; 103 104 // Layer type specific properties 105 // displayList and surfaceTexture are mutually exclusive, only 1 may be set 106 // dirtyRect is only valid if displayList is set 107 DisplayList* mDisplayList; 108 Rect mDirtyRect; 109 sp<GLConsumer> mSurfaceTexture; 110 SkMatrix* mTransform; 111 bool mNeedsGLContextAttach; 112 bool mUpdateTexImage; 113 114 Layer* mLayer; 115 OpenGLRenderer* mRenderer; 116 Caches& mCaches; 117 118 void doUpdateTexImage(); 119}; 120 121} /* namespace uirenderer */ 122} /* namespace android */ 123 124#endif /* DEFERREDLAYERUPDATE_H_ */ 125