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 #include <EGL/egl.h> 22 #include <EGL/eglext.h> 23 24 namespace android { 25 namespace uirenderer { 26 27 class Matrix4; 28 class GlLayer; 29 30 class OpenGLReadback : public Readback { 31 public: 32 virtual CopyResult copySurfaceInto(Surface& surface, const Rect& srcRect, 33 SkBitmap* bitmap) override; 34 virtual CopyResult copyGraphicBufferInto(GraphicBuffer* graphicBuffer, 35 SkBitmap* bitmap) override; 36 37 protected: 38 explicit OpenGLReadback(renderthread::RenderThread& thread) : Readback(thread) {} 39 virtual ~OpenGLReadback() {} 40 41 virtual CopyResult copyImageInto(EGLImageKHR eglImage, const Matrix4& imgTransform, 42 int imgWidth, int imgHeight, const Rect& srcRect, 43 SkBitmap* bitmap) = 0; 44 45 private: 46 CopyResult copyGraphicBufferInto(GraphicBuffer* graphicBuffer, Matrix4& texTransform, 47 const Rect& srcRect, SkBitmap* bitmap); 48 }; 49 50 class OpenGLReadbackImpl : public OpenGLReadback { 51 public: 52 OpenGLReadbackImpl(renderthread::RenderThread& thread) : OpenGLReadback(thread) {} 53 54 /** 55 * Copies the layer's contents into the provided bitmap. 56 */ 57 static bool copyLayerInto(renderthread::RenderThread& renderThread, GlLayer& layer, 58 SkBitmap* bitmap); 59 60 protected: 61 virtual CopyResult copyImageInto(EGLImageKHR eglImage, const Matrix4& imgTransform, 62 int imgWidth, int imgHeight, const Rect& srcRect, 63 SkBitmap* bitmap) override; 64 }; 65 66 } // namespace uirenderer 67 } // namespace android 68
