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 29 namespace android { 30 namespace uirenderer { 31 32 // Container to hold the properties a layer should be set to at the start 33 // of a render pass 34 class DeferredLayerUpdater : public VirtualLightRefBase { 35 public: 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(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 int getWidth() { return mWidth; } 51 int getHeight() { return mHeight; } 52 53 ANDROID_API bool setBlend(bool blend) { 54 if (blend != mBlend) { 55 mBlend = blend; 56 return true; 57 } 58 return false; 59 } 60 61 ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture, bool needsAttach) { 62 if (texture.get() != mSurfaceTexture.get()) { 63 mNeedsGLContextAttach = needsAttach; 64 mSurfaceTexture = texture; 65 66 GLenum target = texture->getCurrentTextureTarget(); 67 LOG_ALWAYS_FATAL_IF(target != GL_TEXTURE_2D && target != GL_TEXTURE_EXTERNAL_OES, 68 "set unsupported GLConsumer with target %x", target); 69 } 70 } 71 72 ANDROID_API void updateTexImage() { 73 mUpdateTexImage = true; 74 } 75 76 ANDROID_API void setTransform(const SkMatrix* matrix) { 77 delete mTransform; 78 mTransform = matrix ? new SkMatrix(*matrix) : nullptr; 79 } 80 81 SkMatrix* getTransform() { 82 return mTransform; 83 } 84 85 ANDROID_API void setPaint(const SkPaint* paint); 86 87 void apply(); 88 89 Layer* backingLayer() { 90 return mLayer; 91 } 92 93 void detachSurfaceTexture(); 94 95 private: 96 // Generic properties 97 int mWidth; 98 int mHeight; 99 bool mBlend; 100 SkColorFilter* mColorFilter; 101 int mAlpha; 102 SkXfermode::Mode mMode; 103 104 sp<GLConsumer> mSurfaceTexture; 105 SkMatrix* mTransform; 106 bool mNeedsGLContextAttach; 107 bool mUpdateTexImage; 108 109 Layer* mLayer; 110 Caches& mCaches; 111 112 void doUpdateTexImage(); 113 }; 114 115 } /* namespace uirenderer */ 116 } /* namespace android */ 117 118 #endif /* DEFERREDLAYERUPDATE_H_ */ 119