DeferredLayerUpdater.h revision 8cd3edfa15cc9cdbffa935d19ab894426b08d174
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 17#pragma once 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 <GLES2/gl2.h> 26#include <GLES2/gl2ext.h> 27 28#include "Layer.h" 29#include "Rect.h" 30#include "renderthread/RenderThread.h" 31 32namespace android { 33namespace uirenderer { 34 35// Container to hold the properties a layer should be set to at the start 36// of a render pass 37class DeferredLayerUpdater : public VirtualLightRefBase { 38public: 39 // Note that DeferredLayerUpdater assumes it is taking ownership of the layer 40 // and will not call incrementRef on it as a result. 41 ANDROID_API explicit DeferredLayerUpdater(Layer* layer); 42 ANDROID_API ~DeferredLayerUpdater(); 43 44 ANDROID_API bool setSize(int width, int height) { 45 if (mWidth != width || mHeight != height) { 46 mWidth = width; 47 mHeight = height; 48 return true; 49 } 50 return false; 51 } 52 53 int getWidth() { return mWidth; } 54 int getHeight() { return mHeight; } 55 56 ANDROID_API bool setBlend(bool blend) { 57 if (blend != mBlend) { 58 mBlend = blend; 59 return true; 60 } 61 return false; 62 } 63 64 ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture, bool needsAttach) { 65 if (texture.get() != mSurfaceTexture.get()) { 66 mSurfaceTexture = texture; 67 mNeedsGLContextAttach = needsAttach; 68 69 GLenum target = texture->getCurrentTextureTarget(); 70 LOG_ALWAYS_FATAL_IF(target != GL_TEXTURE_2D && target != GL_TEXTURE_EXTERNAL_OES, 71 "set unsupported GLConsumer with target %x", target); 72 } 73 } 74 75 ANDROID_API void updateTexImage() { 76 mUpdateTexImage = true; 77 } 78 79 ANDROID_API void setTransform(const SkMatrix* matrix) { 80 delete mTransform; 81 mTransform = matrix ? new SkMatrix(*matrix) : nullptr; 82 } 83 84 SkMatrix* getTransform() { 85 return mTransform; 86 } 87 88 ANDROID_API void setPaint(const SkPaint* paint); 89 90 void apply(); 91 92 Layer* backingLayer() { 93 return mLayer; 94 } 95 96 void detachSurfaceTexture(); 97 98 void updateLayer(bool forceFilter, GLenum renderTarget, const float* textureTransform); 99 100private: 101 // Generic properties 102 int mWidth; 103 int mHeight; 104 bool mBlend; 105 SkColorFilter* mColorFilter; 106 int mAlpha; 107 SkBlendMode mMode; 108 sp<GLConsumer> mSurfaceTexture; 109 SkMatrix* mTransform; 110 bool mNeedsGLContextAttach; 111 bool mUpdateTexImage; 112 113 Layer* mLayer; 114 115 void doUpdateTexImage(); 116}; 117 118} /* namespace uirenderer */ 119} /* namespace android */ 120