Texture.h revision 22158e139a3d6c6a9787ca0de224e9368f643284 
1/*
2 * Copyright (C) 2010 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_UI_TEXTURE_H
18#define ANDROID_UI_TEXTURE_H
19
20#include <GLES2/gl2.h>
21
22namespace android {
23namespace uirenderer {
24
25/**
26 * Represents an OpenGL texture.
27 */
28struct Texture {
29    Texture() {
30        cleanup = false;
31    }
32
33    /**
34     * Name of the texture.
35     */
36    GLuint id;
37    /**
38     * Generation of the backing bitmap,
39     */
40    uint32_t generation;
41    /**
42     * Indicates whether the texture requires blending.
43     */
44    bool blend;
45    /**
46     * Width of the backing bitmap.
47     */
48    uint32_t width;
49    /**
50     * Height of the backing bitmap.
51     */
52    uint32_t height;
53    /**
54     * Indicates whether this texture should be cleaned up after use.
55     */
56    bool cleanup;
57}; // struct Texture
58
59class AutoTexture {
60public:
61    AutoTexture(const Texture* texture): mTexture(texture) { }
62    ~AutoTexture() {
63        if (mTexture && mTexture->cleanup) {
64            glDeleteTextures(1, &mTexture->id);
65            delete mTexture;
66        }
67    }
68
69private:
70    const Texture* mTexture;
71}; // class AutoTexture
72
73}; // namespace uirenderer
74}; // namespace android
75
76#endif // ANDROID_UI_TEXTURE_H
77