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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 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 
56 protected:
57     GLExtensions();
58 
59 public:
haveTextureExternal()60     inline bool haveTextureExternal() const {
61         return mHaveTextureExternal;
62     }
haveNpot()63     inline bool haveNpot() const {
64         return mHaveNpot;
65     }
haveDirectTexture()66     inline bool haveDirectTexture() const {
67         return mHaveDirectTexture;
68     }
69 
haveFramebufferObject()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