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
Image(sp<GraphicBuffer> buffer)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,
32 EGL_NATIVE_BUFFER_ANDROID, clientBuffer, 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
~Image()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