/*
Copyright (C) 1997-2001 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
/*
** QGL.H
*/

#ifndef __QGL_H__
#define __QGL_H__

#define QGL_EXT_compiled_vertex_array       (1<<0)
#define QGL_ARB_multitexture                (1<<1)
#define QGL_EXT_texture_filter_anisotropic  (1<<2)
#define QGL_ARB_fragment_program            (1<<3)
#define QGL_ARB_vertex_buffer_object        (1<<4)

void    QGL_Init(void);
void    QGL_Shutdown(void);
void    QGL_InitExtensions(unsigned mask);
void    QGL_ShutdownExtensions(unsigned mask);
unsigned QGL_ParseExtensionString(const char *s);
void    QGL_EnableLogging(qboolean enable);
void    QGL_LogNewFrame(void);

extern void (APIENTRY * qglAlphaFunc)(GLenum func, GLclampf ref);
extern void (APIENTRY * qglBindTexture)(GLenum target, GLuint texture);
extern void (APIENTRY * qglBlendFunc)(GLenum sfactor, GLenum dfactor);
extern void (APIENTRY * qglClear)(GLbitfield mask);
extern void (APIENTRY * qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
extern void (APIENTRY * qglClearDepth)(GLclampd depth);
extern void (APIENTRY * qglClearIndex)(GLfloat c);
extern void (APIENTRY * qglClearStencil)(GLint s);
extern void (APIENTRY * qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
extern void (APIENTRY * qglColor4fv)(const GLfloat *v);
extern void (APIENTRY * qglColor4ub)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
extern void (APIENTRY * qglColor4ubv)(const GLubyte *v);
extern void (APIENTRY * qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
extern void (APIENTRY * qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
extern void (APIENTRY * qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
extern void (APIENTRY * qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
extern void (APIENTRY * qglCullFace)(GLenum mode);
extern void (APIENTRY * qglDeleteTextures)(GLsizei n, const GLuint *textures);
extern void (APIENTRY * qglDepthFunc)(GLenum func);
extern void (APIENTRY * qglDepthMask)(GLboolean flag);
extern void (APIENTRY * qglDepthRange)(GLclampd zNear, GLclampd zFar);
extern void (APIENTRY * qglDisable)(GLenum cap);
extern void (APIENTRY * qglDisableClientState)(GLenum array);
extern void (APIENTRY * qglDrawArrays)(GLenum mode, GLint first, GLsizei count);
extern void (APIENTRY * qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
extern void (APIENTRY * qglEnable)(GLenum cap);
extern void (APIENTRY * qglEnableClientState)(GLenum array);
extern void (APIENTRY * qglFinish)(void);
extern void (APIENTRY * qglFlush)(void);
extern void (APIENTRY * qglFogf)(GLenum pname, GLfloat param);
extern void (APIENTRY * qglFogfv)(GLenum pname, const GLfloat *params);
extern void (APIENTRY * qglFrontFace)(GLenum mode);
extern void (APIENTRY * qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
extern void (APIENTRY * qglGenTextures)(GLsizei n, GLuint *textures);
extern void (APIENTRY * qglGetBooleanv)(GLenum pname, GLboolean *params);
extern GLenum (APIENTRY * qglGetError)(void);
extern void (APIENTRY * qglGetFloatv)(GLenum pname, GLfloat *params);
extern void (APIENTRY * qglGetIntegerv)(GLenum pname, GLint *params);
extern void (APIENTRY * qglGetLightfv)(GLenum light, GLenum pname, GLfloat *params);
extern void (APIENTRY * qglGetMaterialfv)(GLenum face, GLenum pname, GLfloat *params);
extern void (APIENTRY * qglGetPointerv)(GLenum pname, GLvoid* *params);
extern const GLubyte * (APIENTRY * qglGetString)(GLenum name);
extern void (APIENTRY * qglGetTexEnvfv)(GLenum target, GLenum pname, GLfloat *params);
extern void (APIENTRY * qglGetTexEnviv)(GLenum target, GLenum pname, GLint *params);
extern void (APIENTRY * qglGetTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
extern void (APIENTRY * qglGetTexParameteriv)(GLenum target, GLenum pname, GLint *params);
extern void (APIENTRY * qglHint)(GLenum target, GLenum mode);
extern GLboolean (APIENTRY * qglIsEnabled)(GLenum cap);
extern GLboolean (APIENTRY * qglIsTexture)(GLuint texture);
extern void (APIENTRY * qglLightModelf)(GLenum pname, GLfloat param);
extern void (APIENTRY * qglLightModelfv)(GLenum pname, const GLfloat *params);
extern void (APIENTRY * qglLightf)(GLenum light, GLenum pname, GLfloat param);
extern void (APIENTRY * qglLightfv)(GLenum light, GLenum pname, const GLfloat *params);
extern void (APIENTRY * qglLineWidth)(GLfloat width);
extern void (APIENTRY * qglLoadIdentity)(void);
extern void (APIENTRY * qglLoadMatrixf)(const GLfloat *m);
extern void (APIENTRY * qglLogicOp)(GLenum opcode);
extern void (APIENTRY * qglMaterialf)(GLenum face, GLenum pname, GLfloat param);
extern void (APIENTRY * qglMaterialfv)(GLenum face, GLenum pname, const GLfloat *params);
extern void (APIENTRY * qglMatrixMode)(GLenum mode);
extern void (APIENTRY * qglMultMatrixf)(const GLfloat *m);
extern void (APIENTRY * qglNormal3f)(GLfloat nx, GLfloat ny, GLfloat nz);
extern void (APIENTRY * qglNormal3fv)(const GLfloat *v);
extern void (APIENTRY * qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *pointer);
extern void (APIENTRY * qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
extern void (APIENTRY * qglPixelStorei)(GLenum pname, GLint param);
extern void (APIENTRY * qglPointSize)(GLfloat size);
extern void (APIENTRY * qglPolygonMode)(GLenum face, GLenum mode);
extern void (APIENTRY * qglPolygonOffset)(GLfloat factor, GLfloat units);
extern void (APIENTRY * qglPopMatrix)(void);
extern void (APIENTRY * qglPushMatrix)(void);
extern void (APIENTRY * qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
extern void (APIENTRY * qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
extern void (APIENTRY * qglScalef)(GLfloat x, GLfloat y, GLfloat z);
extern void (APIENTRY * qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
extern void (APIENTRY * qglShadeModel)(GLenum mode);
extern void (APIENTRY * qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
extern void (APIENTRY * qglStencilMask)(GLuint mask);
extern void (APIENTRY * qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
extern void (APIENTRY * qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
extern void (APIENTRY * qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
extern void (APIENTRY * qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
extern void (APIENTRY * qglTexEnvi)(GLenum target, GLenum pname, GLint param);
extern void (APIENTRY * qglTexEnviv)(GLenum target, GLenum pname, const GLint *params);
extern void (APIENTRY * qglTexImage2D)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
extern void (APIENTRY * qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
extern void (APIENTRY * qglTexParameterfv)(GLenum target, GLenum pname, const GLfloat *params);
extern void (APIENTRY * qglTexParameteri)(GLenum target, GLenum pname, GLint param);
extern void (APIENTRY * qglTexParameteriv)(GLenum target, GLenum pname, const GLint *params);
extern void (APIENTRY * qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
extern void (APIENTRY * qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
extern void (APIENTRY * qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
extern void (APIENTRY * qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);

//
// extensions
//

// GL_EXT_compiled_vertex_array
extern void (APIENTRY * qglLockArraysEXT)(GLint first, GLsizei count);
extern void (APIENTRY * qglUnlockArraysEXT)(void);

// GL_ARB_multitexture
extern void (APIENTRY * qglActiveTextureARB)(GLenum texture);
extern void (APIENTRY * qglClientActiveTextureARB)(GLenum texture);

// GL_ARB_fragment_program
extern void (APIENTRY * qglProgramStringARB)(GLenum target, GLenum format, GLsizei len, const GLvoid *string);
extern void (APIENTRY * qglBindProgramARB)(GLenum target, GLuint program);
extern void (APIENTRY * qglDeleteProgramsARB)(GLsizei n, const GLuint *programs);
extern void (APIENTRY * qglGenProgramsARB)(GLsizei n, GLuint *programs);
extern void (APIENTRY * qglProgramEnvParameter4fvARB)(GLenum target, GLuint index, const GLfloat *params);
extern void (APIENTRY * qglProgramLocalParameter4fvARB)(GLenum target, GLuint index, const GLfloat *params);
extern void (APIENTRY * qglGetProgramEnvParameterfvARB)(GLenum, GLuint, GLfloat *);
extern void (APIENTRY * qglGetProgramLocalParameterfvARB)(GLenum, GLuint, GLfloat *);
extern void (APIENTRY * qglGetProgramivARB)(GLenum, GLenum, GLint *);
extern void (APIENTRY * qglGetProgramStringARB)(GLenum, GLenum, GLvoid *);
extern GLboolean (APIENTRY * qglIsProgramARB)(GLuint);

// GL_ARB_vertex_buffer_object
extern void (APIENTRY * qglBindBufferARB)(GLenum target, GLuint buffer);
extern void (APIENTRY * qglDeleteBuffersARB)(GLsizei n, const GLuint *buffers);
extern void (APIENTRY * qglGenBuffersARB)(GLsizei n, GLuint *buffers);
extern GLboolean (APIENTRY * qglIsBufferARB)(GLuint);
extern void (APIENTRY * qglBufferDataARB)(GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage);
extern void (APIENTRY * qglBufferSubDataARB)(GLenum, GLintptrARB, GLsizeiptrARB, const GLvoid *);
extern void (APIENTRY * qglGetBufferSubDataARB)(GLenum, GLintptrARB, GLsizeiptrARB, GLvoid *);
extern GLvoid * (APIENTRY * qglMapBufferARB)(GLenum target, GLenum access);
extern GLboolean (APIENTRY * qglUnmapBufferARB)(GLenum target);
extern void (APIENTRY * qglGetBufferParameterivARB)(GLenum, GLenum, GLint *);
extern void (APIENTRY * qglGetBufferPointervARB)(GLenum, GLenum, GLvoid* *);

#endif