1 /* 2 * Copyright (C) 2016 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 "Readback.h" 20 21 namespace android { 22 namespace uirenderer { 23 24 class Matrix4; 25 class GlLayer; 26 27 class OpenGLReadback : public Readback { 28 public: 29 virtual CopyResult copySurfaceInto(Surface& surface, const Rect& srcRect, 30 SkBitmap* bitmap) override; 31 virtual CopyResult copyGraphicBufferInto(GraphicBuffer* graphicBuffer, 32 SkBitmap* bitmap) override; 33 34 protected: 35 explicit OpenGLReadback(renderthread::RenderThread& thread) : Readback(thread) {} 36 virtual ~OpenGLReadback() {} 37 38 virtual CopyResult copyImageInto(EGLImageKHR eglImage, const Matrix4& imgTransform, 39 int imgWidth, int imgHeight, const Rect& srcRect, SkBitmap* bitmap) = 0; 40 private: 41 CopyResult copyGraphicBufferInto(GraphicBuffer* graphicBuffer, Matrix4& texTransform, 42 const Rect& srcRect, SkBitmap* bitmap); 43 }; 44 45 class OpenGLReadbackImpl : public OpenGLReadback { 46 public: 47 OpenGLReadbackImpl(renderthread::RenderThread& thread) : OpenGLReadback(thread) {} 48 49 /** 50 * Copies the layer's contents into the provided bitmap. 51 */ 52 static bool copyLayerInto(renderthread::RenderThread& renderThread, GlLayer& layer, 53 SkBitmap* bitmap); 54 55 protected: 56 virtual CopyResult copyImageInto(EGLImageKHR eglImage, const Matrix4& imgTransform, 57 int imgWidth, int imgHeight, const Rect& srcRect, SkBitmap* bitmap) override; 58 }; 59 60 } // namespace uirenderer 61 } // namespace android 62
