/****************************************************************************
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** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
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** packaging of this file.  Please review the following information to
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** packaging of this file.  Please review the following information to
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#include "qopengltexturehelper_p.h"

#include <QOpenGLContext>

QT_BEGIN_NAMESPACE

QOpenGLTextureHelper::QOpenGLTextureHelper(QOpenGLContext *context)
{
    // Resolve EXT_direct_state_access entry points if present
#if !defined(QT_OPENGL_ES_2)
    if (context->hasExtension(QByteArrayLiteral("GL_EXT_direct_state_access"))) {
        TextureParameteriEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLenum , GLint )>(context->getProcAddress(QByteArrayLiteral("glTextureParameteriEXT")));
        TextureParameterivEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLenum , const GLint *)>(context->getProcAddress(QByteArrayLiteral("glTextureParameterivEXT")));
        TextureParameterfEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLenum , GLfloat )>(context->getProcAddress(QByteArrayLiteral("glTextureParameterfEXT")));
        TextureParameterfvEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLenum , const GLfloat *)>(context->getProcAddress(QByteArrayLiteral("glTextureParameterfvEXT")));
        GenerateTextureMipmapEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum )>(context->getProcAddress(QByteArrayLiteral("glGenerateTextureMipmapEXT")));
        TextureStorage3DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLsizei , GLenum , GLsizei , GLsizei , GLsizei )>(context->getProcAddress(QByteArrayLiteral("glTextureStorage3DEXT")));
        TextureStorage2DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLsizei , GLenum , GLsizei , GLsizei )>(context->getProcAddress(QByteArrayLiteral("glTextureStorage2DEXT")));
        TextureStorage1DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLsizei , GLenum , GLsizei )>(context->getProcAddress(QByteArrayLiteral("glTextureStorage1DEXT")));
        TextureStorage3DMultisampleEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLsizei , GLenum , GLsizei , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTextureStorage3DMultisampleEXT")));
        TextureStorage2DMultisampleEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLsizei , GLenum , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTextureStorage2DMultisampleEXT")));
        TextureImage3DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLenum , GLsizei , GLsizei , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTextureImage3DEXT")));
        TextureImage2DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLenum , GLsizei , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTextureImage2DEXT")));
        TextureImage1DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLenum , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTextureImage1DEXT")));
        TextureSubImage3DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLint , GLint , GLint , GLsizei , GLsizei , GLsizei , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTextureSubImage3DEXT")));
        TextureSubImage2DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLint , GLint , GLsizei , GLsizei , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTextureSubImage2DEXT")));
        TextureSubImage1DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLint , GLsizei , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTextureSubImage1DEXT")));
        CompressedTextureSubImage1DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLint , GLsizei , GLenum , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTextureSubImage1DEXT")));
        CompressedTextureSubImage2DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLint , GLint , GLsizei , GLsizei , GLenum , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTextureSubImage2DEXT")));
        CompressedTextureSubImage3DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLint , GLint , GLint , GLsizei , GLsizei , GLsizei , GLenum , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTextureSubImage3DEXT")));
        CompressedTextureImage1DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLenum , GLsizei , GLint , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTextureImage1DEXT")));
        CompressedTextureImage2DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLenum , GLsizei , GLsizei , GLint , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTextureImage2DEXT")));
        CompressedTextureImage3DEXT = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint , GLenum , GLsizei , GLsizei , GLsizei , GLint , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTextureImage3DEXT")));

        // Use the real DSA functions
        TextureParameteri = &QOpenGLTextureHelper::dsa_TextureParameteri;
        TextureParameteriv = &QOpenGLTextureHelper::dsa_TextureParameteriv;
        TextureParameterf = &QOpenGLTextureHelper::dsa_TextureParameterf;
        TextureParameterfv = &QOpenGLTextureHelper::dsa_TextureParameterfv;
        GenerateTextureMipmap = &QOpenGLTextureHelper::dsa_GenerateTextureMipmap;
        TextureStorage3D = &QOpenGLTextureHelper::dsa_TextureStorage3D;
        TextureStorage2D = &QOpenGLTextureHelper::dsa_TextureStorage2D;
        TextureStorage1D = &QOpenGLTextureHelper::dsa_TextureStorage1D;
        TextureStorage3DMultisample = &QOpenGLTextureHelper::dsa_TextureStorage3DMultisample;
        TextureStorage2DMultisample = &QOpenGLTextureHelper::dsa_TextureStorage2DMultisample;
        TextureImage3D = &QOpenGLTextureHelper::dsa_TextureImage3D;
        TextureImage2D = &QOpenGLTextureHelper::dsa_TextureImage2D;
        TextureImage1D = &QOpenGLTextureHelper::dsa_TextureImage1D;
        TextureSubImage3D = &QOpenGLTextureHelper::dsa_TextureSubImage3D;
        TextureSubImage2D = &QOpenGLTextureHelper::dsa_TextureSubImage2D;
        TextureSubImage1D = &QOpenGLTextureHelper::dsa_TextureSubImage1D;
        CompressedTextureSubImage1D = &QOpenGLTextureHelper::dsa_CompressedTextureSubImage1D;
        CompressedTextureSubImage2D = &QOpenGLTextureHelper::dsa_CompressedTextureSubImage2D;
        CompressedTextureSubImage3D = &QOpenGLTextureHelper::dsa_CompressedTextureSubImage3D;
        CompressedTextureImage1D = &QOpenGLTextureHelper::dsa_CompressedTextureImage1D;
        CompressedTextureImage2D = &QOpenGLTextureHelper::dsa_CompressedTextureImage2D;
        CompressedTextureImage3D = &QOpenGLTextureHelper::dsa_CompressedTextureImage3D;
    } else {
#endif
        // Use our own DSA emulation
        TextureParameteri = &QOpenGLTextureHelper::qt_TextureParameteri;
        TextureParameteriv = &QOpenGLTextureHelper::qt_TextureParameteriv;
        GenerateTextureMipmap = &QOpenGLTextureHelper::qt_GenerateTextureMipmap;
        TextureStorage3D = &QOpenGLTextureHelper::qt_TextureStorage3D;
        TextureStorage2D = &QOpenGLTextureHelper::qt_TextureStorage2D;
        TextureStorage1D = &QOpenGLTextureHelper::qt_TextureStorage1D;
        TextureStorage3DMultisample = &QOpenGLTextureHelper::qt_TextureStorage3DMultisample;
        TextureStorage2DMultisample = &QOpenGLTextureHelper::qt_TextureStorage2DMultisample;
        TextureImage3D = &QOpenGLTextureHelper::qt_TextureImage3D;
        TextureImage2D = &QOpenGLTextureHelper::qt_TextureImage2D;
        TextureImage1D = &QOpenGLTextureHelper::qt_TextureImage1D;
        TextureSubImage3D = &QOpenGLTextureHelper::qt_TextureSubImage3D;
        TextureSubImage2D = &QOpenGLTextureHelper::qt_TextureSubImage2D;
        TextureSubImage1D = &QOpenGLTextureHelper::qt_TextureSubImage1D;
        CompressedTextureSubImage1D = &QOpenGLTextureHelper::qt_CompressedTextureSubImage1D;
        CompressedTextureSubImage2D = &QOpenGLTextureHelper::qt_CompressedTextureSubImage2D;
        CompressedTextureSubImage3D = &QOpenGLTextureHelper::qt_CompressedTextureSubImage3D;
        CompressedTextureImage1D = &QOpenGLTextureHelper::qt_CompressedTextureImage1D;
        CompressedTextureImage2D = &QOpenGLTextureHelper::qt_CompressedTextureImage2D;
        CompressedTextureImage3D = &QOpenGLTextureHelper::qt_CompressedTextureImage3D;
#if defined(QT_OPENGL_ES_2)
        if (context->hasExtension(QByteArrayLiteral("GL_OES_texture_3D"))) {
            TexImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum, GLint, GLint, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid*)>(context->getProcAddress(QByteArrayLiteral("glTexImage3DOES")));
            TexSubImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLenum, const GLvoid*)>(context->getProcAddress(QByteArrayLiteral("glTexSubImage3DOES")));
            CompressedTexImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLsizei, const GLvoid*)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexImage3DOES")));
            CompressedTexSubImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLsizei, const GLvoid*)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexSubImage3DOES")));
        }
#endif

#if !defined(QT_OPENGL_ES_2)
    }
#endif

    // Some DSA functions are part of NV_texture_multisample instead
#if !defined(QT_OPENGL_ES_2)
    if (context->hasExtension(QByteArrayLiteral("GL_NV_texture_multisample"))) {
        TextureImage3DMultisampleNV = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLsizei , GLint , GLsizei , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTextureImage3DMultisampleNV")));
        TextureImage2DMultisampleNV = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLsizei , GLint , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTextureImage2DMultisampleNV")));

        TextureImage3DMultisample = &QOpenGLTextureHelper::dsa_TextureImage3DMultisample;
        TextureImage2DMultisample = &QOpenGLTextureHelper::dsa_TextureImage2DMultisample;
    } else {
#endif
        TextureImage3DMultisample = &QOpenGLTextureHelper::qt_TextureImage3DMultisample;
        TextureImage2DMultisample = &QOpenGLTextureHelper::qt_TextureImage2DMultisample;
#if !defined(QT_OPENGL_ES_2)
    }
#endif

#if defined(Q_OS_WIN) && !defined(QT_OPENGL_ES_2)
    HMODULE handle = GetModuleHandleA("opengl32.dll");

    // OpenGL 1.0
    GetIntegerv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint *)>(GetProcAddress(handle, QByteArrayLiteral("glGetIntegerv")));
    GetBooleanv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLboolean *)>(GetProcAddress(handle, QByteArrayLiteral("glGetBooleanv")));
    PixelStorei = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint )>(GetProcAddress(handle, QByteArrayLiteral("glPixelStorei")));
    GetTexLevelParameteriv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLint *)>(GetProcAddress(handle, QByteArrayLiteral("glGetTexLevelParameteriv")));
    GetTexLevelParameterfv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLfloat *)>(GetProcAddress(handle, QByteArrayLiteral("glGetTexLevelParameterfv")));
    GetTexParameteriv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLint *)>(GetProcAddress(handle, QByteArrayLiteral("glGetTexParameteriv")));
    GetTexParameterfv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLfloat *)>(GetProcAddress(handle, QByteArrayLiteral("glGetTexParameterfv")));
    GetTexImage = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLenum , GLvoid *)>(GetProcAddress(handle, QByteArrayLiteral("glGetTexImage")));
    TexImage2D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(GetProcAddress(handle, QByteArrayLiteral("glTexImage2D")));
    TexImage1D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(GetProcAddress(handle, QByteArrayLiteral("glTexImage1D")));
    TexParameteriv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , const GLint *)>(GetProcAddress(handle, QByteArrayLiteral("glTexParameteriv")));
    TexParameteri = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLint )>(GetProcAddress(handle, QByteArrayLiteral("glTexParameteri")));
    TexParameterfv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , const GLfloat *)>(GetProcAddress(handle, QByteArrayLiteral("glTexParameterfv")));
    TexParameterf = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLfloat )>(GetProcAddress(handle, QByteArrayLiteral("glTexParameterf")));

    // OpenGL 1.1
    GenTextures = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , GLuint *)>(GetProcAddress(handle, QByteArrayLiteral("glGenTextures")));
    DeleteTextures = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , const GLuint *)>(GetProcAddress(handle, QByteArrayLiteral("glDeleteTextures")));
    BindTexture = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLuint )>(GetProcAddress(handle, QByteArrayLiteral("glBindTexture")));
    TexSubImage2D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLint , GLsizei , GLsizei , GLenum , GLenum , const GLvoid *)>(GetProcAddress(handle, QByteArrayLiteral("glTexSubImage2D")));
    TexSubImage1D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLenum , GLenum , const GLvoid *)>(GetProcAddress(handle, QByteArrayLiteral("glTexSubImage1D")));

#else

    // OpenGL 1.0
    GetIntegerv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint *)>(context->getProcAddress(QByteArrayLiteral("glGetIntegerv")));
    GetBooleanv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLboolean *)>(context->getProcAddress(QByteArrayLiteral("glGetBooleanv")));
    PixelStorei = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint )>(context->getProcAddress(QByteArrayLiteral("glPixelStorei")));
    GetTexLevelParameteriv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLint *)>(context->getProcAddress(QByteArrayLiteral("glGetTexLevelParameteriv")));
    GetTexLevelParameterfv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLfloat *)>(context->getProcAddress(QByteArrayLiteral("glGetTexLevelParameterfv")));
    GetTexParameteriv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLint *)>(context->getProcAddress(QByteArrayLiteral("glGetTexParameteriv")));
    GetTexParameterfv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLfloat *)>(context->getProcAddress(QByteArrayLiteral("glGetTexParameterfv")));
    GetTexImage = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLenum , GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glGetTexImage")));
    TexImage2D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTexImage2D")));
    TexImage1D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTexImage1D")));
    TexParameteriv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , const GLint *)>(context->getProcAddress(QByteArrayLiteral("glTexParameteriv")));
    TexParameteri = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLint )>(context->getProcAddress(QByteArrayLiteral("glTexParameteri")));
    TexParameterfv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , const GLfloat *)>(context->getProcAddress(QByteArrayLiteral("glTexParameterfv")));
    TexParameterf = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLfloat )>(context->getProcAddress(QByteArrayLiteral("glTexParameterf")));

    // OpenGL 1.1
    GenTextures = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , GLuint *)>(context->getProcAddress(QByteArrayLiteral("glGenTextures")));
    DeleteTextures = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , const GLuint *)>(context->getProcAddress(QByteArrayLiteral("glDeleteTextures")));
    BindTexture = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLuint )>(context->getProcAddress(QByteArrayLiteral("glBindTexture")));
    TexSubImage2D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLint , GLsizei , GLsizei , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTexSubImage2D")));
    TexSubImage1D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTexSubImage1D")));
#endif

    // OpenGL 1.2
    TexImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLsizei , GLsizei , GLint , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTexImage3D")));
    TexSubImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLint , GLint , GLsizei , GLsizei , GLsizei , GLenum , GLenum , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glTexSubImage3D")));

    // OpenGL 1.3
    GetCompressedTexImage = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glGetCompressedTexImage")));
    CompressedTexSubImage1D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLsizei , GLenum , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexSubImage1D")));
    CompressedTexSubImage2D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLint , GLsizei , GLsizei , GLenum , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexSubImage2D")));
    CompressedTexSubImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLint , GLint , GLint , GLsizei , GLsizei , GLsizei , GLenum , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexSubImage3D")));
    CompressedTexImage1D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLsizei , GLint , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexImage1D")));
    CompressedTexImage2D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLsizei , GLsizei , GLint , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexImage2D")));
    CompressedTexImage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint , GLenum , GLsizei , GLsizei , GLsizei , GLint , GLsizei , const GLvoid *)>(context->getProcAddress(QByteArrayLiteral("glCompressedTexImage3D")));
    ActiveTexture = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum )>(context->getProcAddress(QByteArrayLiteral("glActiveTexture")));

    // OpenGL 3.0
    GenerateMipmap = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum )>(context->getProcAddress(QByteArrayLiteral("glGenerateMipmap")));

    // OpenGL 3.2
    TexImage3DMultisample = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLsizei , GLint , GLsizei , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTexImage3DMultisample")));
    TexImage2DMultisample = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLsizei , GLint , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTexImage2DMultisample")));

    // OpenGL 4.2
    TexStorage3D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLsizei , GLenum , GLsizei , GLsizei , GLsizei )>(context->getProcAddress(QByteArrayLiteral("glTexStorage3D")));
    TexStorage2D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLsizei , GLenum , GLsizei , GLsizei )>(context->getProcAddress(QByteArrayLiteral("glTexStorage2D")));
    TexStorage1D = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLsizei , GLenum , GLsizei )>(context->getProcAddress(QByteArrayLiteral("glTexStorage1D")));

    // OpenGL 4.3
    TexStorage3DMultisample = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLsizei , GLenum , GLsizei , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTexStorage3DMultisample")));
    TexStorage2DMultisample = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLsizei , GLenum , GLsizei , GLsizei , GLboolean )>(context->getProcAddress(QByteArrayLiteral("glTexStorage2DMultisample")));
    TexBufferRange = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLuint , GLintptr , GLsizeiptr )>(context->getProcAddress(QByteArrayLiteral("glTexBufferRange")));
    TextureView = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLuint , GLenum , GLuint , GLuint , GLuint , GLuint )>(context->getProcAddress(QByteArrayLiteral("glTextureView")));
}

QT_END_NAMESPACE