Texture.h revision 9aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4 
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        bitmapSize = 0;
32    }
33
34    /**
35     * Name of the texture.
36     */
37    GLuint id;
38    /**
39     * Generation of the backing bitmap,
40     */
41    uint32_t generation;
42    /**
43     * Indicates whether the texture requires blending.
44     */
45    bool blend;
46    /**
47     * Width of the backing bitmap.
48     */
49    uint32_t width;
50    /**
51     * Height of the backing bitmap.
52     */
53    uint32_t height;
54    /**
55     * Indicates whether this texture should be cleaned up after use.
56     */
57    bool cleanup;
58    /**
59     * Optional, size of the original bitmap.
60     */
61    uint32_t bitmapSize;
62}; // struct Texture
63
64class AutoTexture {
65public:
66    AutoTexture(const Texture* texture): mTexture(texture) { }
67    ~AutoTexture() {
68        if (mTexture && mTexture->cleanup) {
69            glDeleteTextures(1, &mTexture->id);
70            delete mTexture;
71        }
72    }
73
74private:
75    const Texture* mTexture;
76}; // class AutoTexture
77
78}; // namespace uirenderer
79}; // namespace android
80
81#endif // ANDROID_UI_TEXTURE_H
82