Image.h revision 49796451cb9d1dae580618eb320ef3c5e6d90cd4 
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#ifndef ANDROID_HWUI_IMAGE_H
18#define ANDROID_HWUI_IMAGE_H
19
20#include <EGL/egl.h>
21#include <EGL/eglext.h>
22
23#include <GLES2/gl2.h>
24#include <GLES2/gl2ext.h>
25
26#include <ui/GraphicBuffer.h>
27
28namespace android {
29namespace uirenderer {
30
31/**
32 * A simple wrapper that creates an EGLImage and a texture for a GraphicBuffer.
33 */
34class Image {
35public:
36    /**
37     * Creates a new image from the specified graphic buffer. If the image
38     * cannot be created, getTexture() will return 0 and getImage() will
39     * return EGL_NO_IMAGE_KHR.
40     */
41    explicit Image(sp<GraphicBuffer> buffer);
42    ~Image();
43
44    /**
45     * Returns the name of the GL texture that can be used to sample
46     * from this image.
47     */
48    GLuint getTexture() const {
49        return mTexture;
50    }
51
52    /**
53     * Returns the name of the EGL image represented by this object.
54     */
55    EGLImageKHR getImage() const {
56        return mImage;
57    }
58
59private:
60    GLuint mTexture;
61    EGLImageKHR mImage;
62}; // class Image
63
64}; // namespace uirenderer
65}; // namespace android
66
67#endif // ANDROID_HWUI_IMAGE_H
68