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_SF_GLEXTENSION_H
18#define ANDROID_SF_GLEXTENSION_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <utils/String8.h>
24#include <utils/SortedVector.h>
25#include <utils/Singleton.h>
26
27#include <EGL/egl.h>
28#include <EGL/eglext.h>
29#include <GLES/gl.h>
30#include <GLES/glext.h>
31
32namespace android {
33// ---------------------------------------------------------------------------
34
35class GLExtensions : public Singleton<GLExtensions>
36{
37    friend class Singleton<GLExtensions>;
38
39    bool mHaveTextureExternal   : 1;
40    bool mHaveNpot              : 1;
41    bool mHaveDirectTexture     : 1;
42    bool mHaveFramebufferObject : 1;
43
44    String8 mVendor;
45    String8 mRenderer;
46    String8 mVersion;
47    String8 mExtensions;
48    String8 mEglVendor;
49    String8 mEglVersion;
50    String8 mEglExtensions;
51    SortedVector<String8> mExtensionList;
52
53    GLExtensions(const GLExtensions&);
54    GLExtensions& operator = (const GLExtensions&);
55
56protected:
57    GLExtensions();
58
59public:
60    inline bool haveTextureExternal() const {
61        return mHaveTextureExternal;
62    }
63    inline bool haveNpot() const {
64        return mHaveNpot;
65    }
66    inline bool haveDirectTexture() const {
67        return mHaveDirectTexture;
68    }
69
70    inline bool haveFramebufferObject() const {
71        return mHaveFramebufferObject;
72    }
73
74    void initWithGLStrings(
75            GLubyte const* vendor,
76            GLubyte const* renderer,
77            GLubyte const* version,
78            GLubyte const* extensions,
79            char const* egl_vendor,
80            char const* egl_version,
81            char const* egl_extensions);
82
83    char const* getVendor() const;
84    char const* getRenderer() const;
85    char const* getVersion() const;
86    char const* getExtension() const;
87
88    char const* getEglVendor() const;
89    char const* getEglVersion() const;
90    char const* getEglExtension() const;
91
92    bool hasExtension(char const* extension) const;
93};
94
95
96// ---------------------------------------------------------------------------
97}; // namespace android
98
99#endif // ANDROID_SF_GLEXTENSION_H
100