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 #define LOG_TAG "OpenGLRenderer" 18 19 #include <utils/Log.h> 20 21 #include "Caches.h" 22 #include "Image.h" 23 24 namespace android { 25 namespace uirenderer { 26 27 Image::Image(sp<GraphicBuffer> buffer) { 28 // Create the EGLImage object that maps the GraphicBuffer 29 EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY); 30 EGLClientBuffer clientBuffer = (EGLClientBuffer) buffer->getNativeBuffer(); 31 EGLint attrs[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE }; 32 33 mImage = eglCreateImageKHR(display, EGL_NO_CONTEXT, 34 EGL_NATIVE_BUFFER_ANDROID, clientBuffer, attrs); 35 36 if (mImage == EGL_NO_IMAGE_KHR) { 37 ALOGW("Error creating image (%#x)", eglGetError()); 38 mTexture = 0; 39 } else { 40 // Create a 2D texture to sample from the EGLImage 41 glGenTextures(1, &mTexture); 42 Caches::getInstance().bindTexture(mTexture); 43 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, mImage); 44 45 GLenum status = GL_NO_ERROR; 46 while ((status = glGetError()) != GL_NO_ERROR) { 47 ALOGW("Error creating image (%#x)", status); 48 } 49 } 50 } 51 52 Image::~Image() { 53 if (mImage != EGL_NO_IMAGE_KHR) { 54 eglDestroyImageKHR(eglGetDisplay(EGL_DEFAULT_DISPLAY), mImage); 55 mImage = EGL_NO_IMAGE_KHR; 56 57 Caches::getInstance().deleteTexture(mTexture); 58 mTexture = 0; 59 } 60 } 61 62 }; // namespace uirenderer 63 }; // namespace android 64
