qglextensions_p.h

奇趣公司比较新的qt/emd版本

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#ifndef QGL_EXTENSIONS_P_H
#define QGL_EXTENSIONS_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the Qt OpenGL classes.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

// extension prototypes
#ifndef Q_WS_MAC
# ifndef APIENTRYP
#   ifdef APIENTRY
#     define APIENTRYP APIENTRY *
#   else
#     define APIENTRY
#     define APIENTRYP *
#   endif
# endif
#else
# define APIENTRY
# define APIENTRYP *
#endif

// ARB_fragment_program
typedef void (APIENTRY *_glProgramStringARB) (GLenum, GLenum, GLsizei, const GLvoid *);
typedef void (APIENTRY *_glBindProgramARB) (GLenum, GLuint);
typedef void (APIENTRY *_glDeleteProgramsARB) (GLsizei, const GLuint *);
typedef void (APIENTRY *_glGenProgramsARB) (GLsizei, GLuint *);
typedef void (APIENTRY *_glProgramLocalParameter4fvARB) (GLenum, GLuint, const GLfloat *);

// GLSL
typedef GLuint (APIENTRY *_glCreateShader) (GLenum);
typedef void (APIENTRY *_glShaderSource) (GLuint, GLsizei, const char **, const GLint *);
typedef void (APIENTRY *_glCompileShader) (GLuint);
typedef void (APIENTRY *_glDeleteShader) (GLuint);

typedef GLuint (APIENTRY *_glCreateProgram) ();
typedef void (APIENTRY *_glAttachShader) (GLuint, GLuint);
typedef void (APIENTRY *_glDetachShader) (GLuint, GLuint);
typedef void (APIENTRY *_glLinkProgram) (GLuint);
typedef void (APIENTRY *_glUseProgram) (GLuint);
typedef void (APIENTRY *_glDeleteProgram) (GLuint);

typedef void (APIENTRY *_glGetShaderInfoLog) (GLuint, GLsizei, GLsizei *, char *);
typedef void (APIENTRY *_glGetProgramiv) (GLuint, GLenum, GLint *);

typedef GLuint (APIENTRY *_glGetUniformLocation) (GLuint, const char*);
typedef void (APIENTRY *_glUniform4fv) (GLint, GLsizei, GLfloat *);
typedef void (APIENTRY *_glUniform3fv) (GLint, GLsizei, GLfloat *);
typedef void (APIENTRY *_glUniform2fv) (GLint, GLsizei, GLfloat *);
typedef void (APIENTRY *_glUniform1fv) (GLint, GLsizei, GLfloat *);
typedef void (APIENTRY *_glUniform1i) (GLint, GLint);

typedef void (APIENTRY *_glActiveStencilFaceEXT) (GLenum );

typedef void (APIENTRY *_glMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
typedef void (APIENTRY *_glActiveTexture) (GLenum);

// EXT_GL_framebuffer_object
typedef GLboolean (APIENTRY *_glIsRenderbufferEXT) (GLuint renderbuffer);
typedef void (APIENTRY *_glBindRenderbufferEXT) (GLenum target, GLuint renderbuffer);
typedef void (APIENTRY *_glDeleteRenderbuffersEXT) (GLsizei n, const GLuint *renderbuffers);
typedef void (APIENTRY *_glGenRenderbuffersEXT) (GLsizei n, GLuint *renderbuffers);
typedef void (APIENTRY *_glRenderbufferStorageEXT) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
typedef void (APIENTRY *_glGetRenderbufferParameterivEXT) (GLenum target, GLenum pname, GLint *params);
typedef GLboolean (APIENTRY *_glIsFramebufferEXT) (GLuint framebuffer);
typedef void (APIENTRY *_glBindFramebufferEXT) (GLenum target, GLuint framebuffer);
typedef void (APIENTRY *_glDeleteFramebuffersEXT) (GLsizei n, const GLuint *framebuffers);
typedef void (APIENTRY *_glGenFramebuffersEXT) (GLsizei n, GLuint *framebuffers);
typedef GLenum (APIENTRY *_glCheckFramebufferStatusEXT) (GLenum target);
typedef void (APIENTRY *_glFramebufferTexture1DEXT) (GLenum target, GLenum attachment, GLenum textarget,
                                                           GLuint texture, GLint level);
typedef void (APIENTRY *_glFramebufferTexture2DEXT) (GLenum target, GLenum attachment, GLenum textarget,
                                                           GLuint texture, GLint level);
typedef void (APIENTRY *_glFramebufferTexture3DEXT) (GLenum target, GLenum attachment, GLenum textarget,
                                                           GLuint texture, GLint level, GLint zoffset);
typedef void (APIENTRY *_glFramebufferRenderbufferEXT) (GLenum target, GLenum attachment, GLenum renderbuffertarget,
                                                              GLuint renderbuffer);
typedef void (APIENTRY *_glGetFramebufferAttachmentParameterivEXT) (GLenum target, GLenum attachment, GLenum pname,
                                                                          GLint *params);
typedef void (APIENTRY *_glGenerateMipmapEXT) (GLenum target);

struct QGLExtensionFuncs
{
    QGLExtensionFuncs() {
        qt_glProgramStringARB = 0;
        qt_glBindProgramARB = 0;
        qt_glDeleteProgramsARB = 0;
        qt_glGenProgramsARB = 0;
        qt_glProgramLocalParameter4fvARB = 0;

        qt_glCreateShader = 0;
        qt_glShaderSource = 0;
        qt_glCompileShader = 0;
        qt_glDeleteShader = 0;

        qt_glCreateProgram = 0;
        qt_glAttachShader = 0;
        qt_glDetachShader = 0;
        qt_glLinkProgram = 0;
        qt_glUseProgram = 0;
        qt_glDeleteProgram = 0;

        qt_glGetShaderInfoLog = 0;
        qt_glGetProgramiv = 0;

        qt_glGetUniformLocation = 0;
        qt_glUniform4fv = 0;
        qt_glUniform3fv = 0;
        qt_glUniform2fv = 0;
        qt_glUniform1fv = 0;
        qt_glUniform1i = 0;

        qt_glActiveStencilFaceEXT = 0;

        qt_glMultiTexCoord4f = 0;
        qt_glActiveTexture = 0;

        qt_glIsRenderbufferEXT = 0;
        qt_glBindRenderbufferEXT = 0;
        qt_glDeleteRenderbuffersEXT = 0;
        qt_glGenRenderbuffersEXT = 0;
        qt_glRenderbufferStorageEXT = 0;
        qt_glGetRenderbufferParameterivEXT = 0;
        qt_glIsFramebufferEXT = 0;
        qt_glBindFramebufferEXT = 0;
        qt_glDeleteFramebuffersEXT = 0;
        qt_glGenFramebuffersEXT = 0;
        qt_glCheckFramebufferStatusEXT = 0;
        qt_glFramebufferTexture1DEXT = 0;
        qt_glFramebufferTexture2DEXT = 0;
        qt_glFramebufferTexture3DEXT = 0;
        qt_glFramebufferRenderbufferEXT = 0;
        qt_glGetFramebufferAttachmentParameterivEXT = 0;
        qt_glGenerateMipmapEXT = 0;
    }

    _glProgramStringARB qt_glProgramStringARB;
    _glBindProgramARB qt_glBindProgramARB;
    _glDeleteProgramsARB qt_glDeleteProgramsARB;
    _glGenProgramsARB qt_glGenProgramsARB;
    _glProgramLocalParameter4fvARB qt_glProgramLocalParameter4fvARB;

    // GLSL definitions
    _glCreateShader qt_glCreateShader;
    _glShaderSource qt_glShaderSource;
    _glCompileShader qt_glCompileShader;
    _glDeleteShader qt_glDeleteShader;

    _glCreateProgram qt_glCreateProgram;
    _glAttachShader qt_glAttachShader;
    _glDetachShader qt_glDetachShader;
    _glLinkProgram qt_glLinkProgram;
    _glUseProgram qt_glUseProgram;
    _glDeleteProgram qt_glDeleteProgram;