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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 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 
     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