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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/Singleton.h>
     24 #include <utils/SortedVector.h>
     25 #include <utils/String8.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     friend class Singleton<GLExtensions>;
     37 
     38     bool mHasNoConfigContext = false;
     39     bool mHasNativeFenceSync = false;
     40     bool mHasFenceSync = false;
     41     bool mHasWaitSync = false;
     42     bool mHasImageCrop = false;
     43     bool mHasProtectedContent = false;
     44     bool mHasContextPriority = false;
     45 
     46     String8 mVendor;
     47     String8 mRenderer;
     48     String8 mVersion;
     49     String8 mExtensions;
     50     SortedVector<String8> mExtensionList;
     51 
     52     String8 mEGLVersion;
     53     String8 mEGLExtensions;
     54     SortedVector<String8> mEGLExtensionList;
     55 
     56     static SortedVector<String8> parseExtensionString(char const* extensions);
     57 
     58     GLExtensions(const GLExtensions&);
     59     GLExtensions& operator=(const GLExtensions&);
     60 
     61 protected:
     62     GLExtensions() = default;
     63 
     64 public:
     65     bool hasNoConfigContext() const { return mHasNoConfigContext; }
     66     bool hasNativeFenceSync() const { return mHasNativeFenceSync; }
     67     bool hasFenceSync() const { return mHasFenceSync; }
     68     bool hasWaitSync() const { return mHasWaitSync; }
     69     bool hasImageCrop() const { return mHasImageCrop; }
     70     bool hasProtectedContent() const { return mHasProtectedContent; }
     71     bool hasContextPriority() const { return mHasContextPriority; }
     72 
     73     void initWithGLStrings(GLubyte const* vendor, GLubyte const* renderer, GLubyte const* version,
     74                            GLubyte const* extensions);
     75     char const* getVendor() const;
     76     char const* getRenderer() const;
     77     char const* getVersion() const;
     78     char const* getExtensions() const;
     79     bool hasExtension(char const* extension) const;
     80 
     81     void initWithEGLStrings(char const* eglVersion, char const* eglExtensions);
     82     char const* getEGLVersion() const;
     83     char const* getEGLExtensions() const;
     84     bool hasEGLExtension(char const* extension) const;
     85 };
     86 
     87 // ---------------------------------------------------------------------------
     88 }; // namespace android
     89 
     90 #endif // ANDROID_SF_GLEXTENSION_H
     91