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 
32 namespace android {
33 // ---------------------------------------------------------------------------
34 
35 class GLExtensions : public Singleton<GLExtensions>
36 {
37     friend class Singleton<GLExtensions>;
38 
39     bool mHaveFramebufferObject : 1;
40 
41     String8 mVendor;
42     String8 mRenderer;
43     String8 mVersion;
44     String8 mExtensions;
45     SortedVector<String8> mExtensionList;
46 
47     GLExtensions(const GLExtensions&);
48     GLExtensions& operator = (const GLExtensions&);
49 
50 protected:
51     GLExtensions();
52 
53 public:
54 
haveFramebufferObject()55     inline bool haveFramebufferObject() const {
56         return mHaveFramebufferObject;
57     }
58 
59     void initWithGLStrings(
60             GLubyte const* vendor,
61             GLubyte const* renderer,
62             GLubyte const* version,
63             GLubyte const* extensions);
64 
65     char const* getVendor() const;
66     char const* getRenderer() const;
67     char const* getVersion() const;
68     char const* getExtension() const;
69 
70     bool hasExtension(char const* extension) const;
71 };
72 
73 
74 // ---------------------------------------------------------------------------
75 }; // namespace android
76 
77 #endif // ANDROID_SF_GLEXTENSION_H
78