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 32 namespace android { 33 namespace uirenderer { 34 35 class RenderState; 36 37 // Container to hold the properties a layer should be set to at the start 38 // of a render pass 39 class DeferredLayerUpdater : public VirtualLightRefBase { 40 public: 41 // Note that DeferredLayerUpdater assumes it is taking ownership of the layer 42 // and will not call incrementRef on it as a result. 43 typedef std::function<Layer*(RenderState& renderState, uint32_t layerWidth, 44 uint32_t layerHeight, SkColorFilter* colorFilter, int alpha, 45 SkBlendMode mode, bool blend)> CreateLayerFn; 46 ANDROID_API explicit DeferredLayerUpdater(RenderState& renderState, 47 CreateLayerFn createLayerFn, Layer::Api layerApi); 48 49 ANDROID_API ~DeferredLayerUpdater(); 50 setSize(int width,int height)51 ANDROID_API bool setSize(int width, int height) { 52 if (mWidth != width || mHeight != height) { 53 mWidth = width; 54 mHeight = height; 55 return true; 56 } 57 return false; 58 } 59 getWidth()60 int getWidth() { return mWidth; } getHeight()61 int getHeight() { return mHeight; } 62 setBlend(bool blend)63 ANDROID_API bool setBlend(bool blend) { 64 if (blend != mBlend) { 65 mBlend = blend; 66 return true; 67 } 68 return false; 69 } 70 setSurfaceTexture(const sp<GLConsumer> & texture)71 ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture) { 72 if (texture.get() != mSurfaceTexture.get()) { 73 mSurfaceTexture = texture; 74 75 GLenum target = texture->getCurrentTextureTarget(); 76 LOG_ALWAYS_FATAL_IF(target != GL_TEXTURE_2D && target != GL_TEXTURE_EXTERNAL_OES, 77 "set unsupported GLConsumer with target %x", target); 78 } 79 } 80 updateTexImage()81 ANDROID_API void updateTexImage() { 82 mUpdateTexImage = true; 83 } 84 setTransform(const SkMatrix * matrix)85 ANDROID_API void setTransform(const SkMatrix* matrix) { 86 delete mTransform; 87 mTransform = matrix ? new SkMatrix(*matrix) : nullptr; 88 } 89 getTransform()90 SkMatrix* getTransform() { 91 return mTransform; 92 } 93 94 ANDROID_API void setPaint(const SkPaint* paint); 95 96 void apply(); 97 backingLayer()98 Layer* backingLayer() { 99 return mLayer; 100 } 101 102 void detachSurfaceTexture(); 103 104 void updateLayer(bool forceFilter, const float* textureTransform); 105 106 void destroyLayer(); 107 getBackingLayerApi()108 Layer::Api getBackingLayerApi() { 109 return mLayerApi; 110 } 111 112 private: 113 RenderState& mRenderState; 114 115 // Generic properties 116 int mWidth = 0; 117 int mHeight = 0; 118 bool mBlend = false; 119 SkColorFilter* mColorFilter = nullptr; 120 int mAlpha = 255; 121 SkBlendMode mMode = SkBlendMode::kSrcOver; 122 sp<GLConsumer> mSurfaceTexture; 123 SkMatrix* mTransform; 124 bool mGLContextAttached; 125 bool mUpdateTexImage; 126 127 Layer* mLayer; 128 Layer::Api mLayerApi; 129 CreateLayerFn mCreateLayerFn; 130 131 void doUpdateTexImage(); 132 void doUpdateVkTexImage(); 133 }; 134 135 } /* namespace uirenderer */ 136 } /* namespace android */ 137