1 /* 2 * Copyright (C) 2013 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 #include <utils/Log.h> 18 19 #include "Caches.h" 20 #include "Image.h" 21 22 namespace android { 23 namespace uirenderer { 24 25 Image::Image(sp<GraphicBuffer> buffer) { 26 // Create the EGLImage object that maps the GraphicBuffer 27 EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY); 28 EGLClientBuffer clientBuffer = (EGLClientBuffer)buffer->getNativeBuffer(); 29 EGLint attrs[] = {EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE}; 30 31 mImage = eglCreateImageKHR(display, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, clientBuffer, 32 attrs); 33 34 if (mImage == EGL_NO_IMAGE_KHR) { 35 ALOGW("Error creating image (%#x)", eglGetError()); 36 mTexture = 0; 37 } else { 38 // Create a 2D texture to sample from the EGLImage 39 glGenTextures(1, &mTexture); 40 Caches::getInstance().textureState().bindTexture(mTexture); 41 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, mImage); 42 43 GLenum status = GL_NO_ERROR; 44 while ((status = glGetError()) != GL_NO_ERROR) { 45 ALOGW("Error creating image (%#x)", status); 46 } 47 } 48 } 49 50 Image::~Image() { 51 if (mImage != EGL_NO_IMAGE_KHR) { 52 eglDestroyImageKHR(eglGetDisplay(EGL_DEFAULT_DISPLAY), mImage); 53 mImage = EGL_NO_IMAGE_KHR; 54 55 Caches::getInstance().textureState().deleteTexture(mTexture); 56 mTexture = 0; 57 } 58 } 59 60 }; // namespace uirenderer 61 }; // namespace android 62
