DeferredLayerUpdater.h revision a39dd595791b41222ab310b5e8a76a64faa8ba5c
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 // Note that DeferredLayerUpdater assumes it is taking ownership of the layer 38 // and will not call incrementRef on it as a result. 39 ANDROID_API DeferredLayerUpdater(Layer* layer, OpenGLRenderer* renderer = 0); 40 ANDROID_API ~DeferredLayerUpdater(); 41 42 ANDROID_API bool setSize(uint32_t width, uint32_t height) { 43 if (mWidth != width || mHeight != height) { 44 mWidth = width; 45 mHeight = height; 46 return true; 47 } 48 return false; 49 } 50 51 ANDROID_API bool setBlend(bool blend) { 52 if (blend != mBlend) { 53 mBlend = blend; 54 return true; 55 } 56 return false; 57 } 58 59 ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture, bool needsAttach) { 60 if (texture.get() != mSurfaceTexture.get()) { 61 mNeedsGLContextAttach = needsAttach; 62 mSurfaceTexture = texture; 63 } 64 } 65 66 ANDROID_API void updateTexImage() { 67 mUpdateTexImage = true; 68 } 69 70 ANDROID_API void setTransform(const SkMatrix* matrix) { 71 delete mTransform; 72 mTransform = matrix ? new SkMatrix(*matrix) : 0; 73 } 74 75 ANDROID_API void setDisplayList(DisplayList* displayList, 76 int left, int top, int right, int bottom); 77 78 ANDROID_API void setPaint(const SkPaint* paint) { 79 OpenGLRenderer::getAlphaAndModeDirect(paint, &mAlpha, &mMode); 80 } 81 82 ANDROID_API void setColorFilter(SkColorFilter* colorFilter); 83 84 ANDROID_API bool apply(); 85 ANDROID_API void applyDeferred(DeferredLayerUpdater* deferredApply); 86 87 ANDROID_API Layer* backingLayer() { 88 return mLayer; 89 } 90 91 ANDROID_API Layer* detachBackingLayer() { 92 Layer* layer = mLayer; 93 mLayer = 0; 94 return layer; 95 } 96 97private: 98 // Generic properties 99 uint32_t mWidth; 100 uint32_t mHeight; 101 bool mBlend; 102 SkColorFilter* mColorFilter; 103 int mAlpha; 104 SkXfermode::Mode mMode; 105 106 // Layer type specific properties 107 // displayList and surfaceTexture are mutually exclusive, only 1 may be set 108 // dirtyRect is only valid if displayList is set 109 DisplayList* mDisplayList; 110 Rect mDirtyRect; 111 sp<GLConsumer> mSurfaceTexture; 112 SkMatrix* mTransform; 113 bool mNeedsGLContextAttach; 114 bool mUpdateTexImage; 115 116 Layer* mLayer; 117 OpenGLRenderer* mRenderer; 118 Caches& mCaches; 119 120 void doUpdateTexImage(); 121}; 122 123} /* namespace uirenderer */ 124} /* namespace android */ 125 126#endif /* DEFERREDLAYERUPDATE_H_ */ 127