+// general GL functions
+
+void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
+
+void (GLAPIENTRY *qglClear)(GLbitfield mask);
+
+void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
+void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
+void (GLAPIENTRY *qglCullFace)(GLenum mode);
+
+void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
+void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
+void (GLAPIENTRY *qglEnable)(GLenum cap);
+void (GLAPIENTRY *qglDisable)(GLenum cap);
+GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
+
+void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
+void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
+
+void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
+void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
+void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
+void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
+
+GLenum (GLAPIENTRY *qglGetError)(void);
+const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
+void (GLAPIENTRY *qglFinish)(void);
+void (GLAPIENTRY *qglFlush)(void);
+
+void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
+void (GLAPIENTRY *qglDepthFunc)(GLenum func);
+void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
+void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
+void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
+
+void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
+void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
+void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
+void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
+void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
+void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
+void (GLAPIENTRY *qglArrayElement)(GLint i);
+
+void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
+void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
+void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
+void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
+void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
+void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
+void (GLAPIENTRY *qglBegin)(GLenum mode);
+void (GLAPIENTRY *qglEnd)(void);
+
+void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
+void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
+void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
+void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
+void (GLAPIENTRY *qglPushMatrix)(void);
+void (GLAPIENTRY *qglPopMatrix)(void);
+void (GLAPIENTRY *qglLoadIdentity)(void);
+void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
+void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
+void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
+void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
+void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
+void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
+void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
+void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
+void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
+void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
+
+void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
+
+void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
+void (GLAPIENTRY *qglStencilMask)(GLuint mask);
+void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
+void (GLAPIENTRY *qglClearStencil)(GLint s);
+
+void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
+void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
+void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
+void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
+
+void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
+void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
+void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
+//void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
+//GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
+GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
+void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
+
+void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
+void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
+void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
+void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+
+
+void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
+
+//void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
+
+void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+
+void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
+
+void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
+
+//[515]: added on 29.07.2005
+void (GLAPIENTRY *qglLineWidth)(GLfloat width);
+void (GLAPIENTRY *qglPointSize)(GLfloat size);
+
+void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
+
+void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
+GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
+void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
+GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
+void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
+void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
+GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
+void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
+void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
+void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
+void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
+void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
+void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
+void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
+void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
+void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
+void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
+void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
+void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
+void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
+void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
+void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
+void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
+void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
+void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
+void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
+void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
+void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
+void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
+GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
+void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
+void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
+void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
+void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
+
+//void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
+//void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
+//void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
+//void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
+//void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
+//void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
+//void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
+//void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
+//void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
+//void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+//void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
+//void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
+//void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
+//void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
+//void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
+//void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
+//void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
+//void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
+//void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
+//void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
+//void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
+//void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
+//void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
+//void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
+//void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
+//void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
+//void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
+//void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
+//void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
+//void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
+//void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
+//void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
+//void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
+//void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
+//void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
+//void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
+void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
+void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
+void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
+void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
+void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
+GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
+//void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
+//void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
+//void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
+//void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
+
+int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
+{
+ int failed = false;
+ const dllfunction_t *func;
+
+ Con_Printf("checking for %s... ", name);
+
+ for (func = funcs;func && func->name;func++)
+ *func->funcvariable = NULL;
+
+ if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
+ {
+ Con_Print("disabled by commandline\n");
+ return false;
+ }
+
+ if (strstr(gl_extensions, name) || strstr(gl_platformextensions, name) || (strncmp(name, "GL_", 3) && strncmp(name, "WGL_", 4) && strncmp(name, "GLX_", 4) && strncmp(name, "AGL_", 4)))
+ {
+ for (func = funcs;func && func->name != NULL;func++)
+ {
+ // functions are cleared before all the extensions are evaluated
+ if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
+ {
+ if (!silent)
+ Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
+ failed = true;
+ }
+ }
+ // delay the return so it prints all missing functions
+ if (failed)
+ return false;
+ Con_Print("enabled\n");
+ return true;
+ }
+ else
+ {
+ Con_Print("not detected\n");
+ return false;
+ }
+}
+
+static dllfunction_t opengl110funcs[] =
+{
+ {"glClearColor", (void **) &qglClearColor},
+ {"glClear", (void **) &qglClear},
+ {"glAlphaFunc", (void **) &qglAlphaFunc},
+ {"glBlendFunc", (void **) &qglBlendFunc},
+ {"glCullFace", (void **) &qglCullFace},
+ {"glDrawBuffer", (void **) &qglDrawBuffer},
+ {"glReadBuffer", (void **) &qglReadBuffer},
+ {"glEnable", (void **) &qglEnable},
+ {"glDisable", (void **) &qglDisable},
+ {"glIsEnabled", (void **) &qglIsEnabled},
+ {"glEnableClientState", (void **) &qglEnableClientState},
+ {"glDisableClientState", (void **) &qglDisableClientState},
+ {"glGetBooleanv", (void **) &qglGetBooleanv},
+ {"glGetDoublev", (void **) &qglGetDoublev},
+ {"glGetFloatv", (void **) &qglGetFloatv},
+ {"glGetIntegerv", (void **) &qglGetIntegerv},
+ {"glGetError", (void **) &qglGetError},
+ {"glGetString", (void **) &qglGetString},
+ {"glFinish", (void **) &qglFinish},
+ {"glFlush", (void **) &qglFlush},
+ {"glClearDepth", (void **) &qglClearDepth},
+ {"glDepthFunc", (void **) &qglDepthFunc},
+ {"glDepthMask", (void **) &qglDepthMask},
+ {"glDepthRange", (void **) &qglDepthRange},
+ {"glDrawElements", (void **) &qglDrawElements},
+ {"glColorMask", (void **) &qglColorMask},
+ {"glVertexPointer", (void **) &qglVertexPointer},
+ {"glNormalPointer", (void **) &qglNormalPointer},
+ {"glColorPointer", (void **) &qglColorPointer},
+ {"glTexCoordPointer", (void **) &qglTexCoordPointer},
+ {"glArrayElement", (void **) &qglArrayElement},
+ {"glColor4f", (void **) &qglColor4f},
+ {"glTexCoord1f", (void **) &qglTexCoord1f},
+ {"glTexCoord2f", (void **) &qglTexCoord2f},
+ {"glTexCoord3f", (void **) &qglTexCoord3f},
+ {"glTexCoord4f", (void **) &qglTexCoord4f},
+ {"glVertex2f", (void **) &qglVertex2f},
+ {"glVertex3f", (void **) &qglVertex3f},
+ {"glBegin", (void **) &qglBegin},
+ {"glEnd", (void **) &qglEnd},
+//[515]: added on 29.07.2005
+ {"glLineWidth", (void**) &qglLineWidth},
+ {"glPointSize", (void**) &qglPointSize},
+//
+ {"glMatrixMode", (void **) &qglMatrixMode},
+ {"glOrtho", (void **) &qglOrtho},
+ {"glFrustum", (void **) &qglFrustum},
+ {"glViewport", (void **) &qglViewport},
+ {"glPushMatrix", (void **) &qglPushMatrix},
+ {"glPopMatrix", (void **) &qglPopMatrix},
+ {"glLoadIdentity", (void **) &qglLoadIdentity},
+ {"glLoadMatrixd", (void **) &qglLoadMatrixd},
+ {"glLoadMatrixf", (void **) &qglLoadMatrixf},
+ {"glMultMatrixd", (void **) &qglMultMatrixd},
+ {"glMultMatrixf", (void **) &qglMultMatrixf},
+ {"glRotated", (void **) &qglRotated},
+ {"glRotatef", (void **) &qglRotatef},
+ {"glScaled", (void **) &qglScaled},
+ {"glScalef", (void **) &qglScalef},
+ {"glTranslated", (void **) &qglTranslated},
+ {"glTranslatef", (void **) &qglTranslatef},
+ {"glReadPixels", (void **) &qglReadPixels},
+ {"glStencilFunc", (void **) &qglStencilFunc},
+ {"glStencilMask", (void **) &qglStencilMask},
+ {"glStencilOp", (void **) &qglStencilOp},
+ {"glClearStencil", (void **) &qglClearStencil},
+ {"glTexEnvf", (void **) &qglTexEnvf},
+ {"glTexEnvfv", (void **) &qglTexEnvfv},
+ {"glTexEnvi", (void **) &qglTexEnvi},
+ {"glTexParameterf", (void **) &qglTexParameterf},
+ {"glTexParameterfv", (void **) &qglTexParameterfv},
+ {"glTexParameteri", (void **) &qglTexParameteri},
+ {"glPixelStoref", (void **) &qglPixelStoref},
+ {"glPixelStorei", (void **) &qglPixelStorei},
+ {"glGenTextures", (void **) &qglGenTextures},
+ {"glDeleteTextures", (void **) &qglDeleteTextures},
+ {"glBindTexture", (void **) &qglBindTexture},
+// {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
+// {"glAreTexturesResident", (void **) &qglAreTexturesResident},
+ {"glIsTexture", (void **) &qglIsTexture},
+ {"glTexImage1D", (void **) &qglTexImage1D},
+ {"glTexImage2D", (void **) &qglTexImage2D},
+ {"glTexSubImage1D", (void **) &qglTexSubImage1D},
+ {"glTexSubImage2D", (void **) &qglTexSubImage2D},
+ {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
+ {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
+ {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
+ {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
+ {"glScissor", (void **) &qglScissor},
+ {"glPolygonOffset", (void **) &qglPolygonOffset},
+ {NULL, NULL}
+};
+
+static dllfunction_t drawrangeelementsfuncs[] =
+{
+ {"glDrawRangeElements", (void **) &qglDrawRangeElements},
+ {NULL, NULL}
+};
+
+static dllfunction_t drawrangeelementsextfuncs[] =
+{
+ {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
+ {NULL, NULL}
+};
+
+static dllfunction_t multitexturefuncs[] =
+{
+ {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
+ {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
+ {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
+ {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
+ {"glActiveTextureARB", (void **) &qglActiveTexture},
+ {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
+ {NULL, NULL}
+};
+
+static dllfunction_t compiledvertexarrayfuncs[] =
+{
+ {"glLockArraysEXT", (void **) &qglLockArraysEXT},
+ {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
+ {NULL, NULL}
+};
+
+static dllfunction_t texture3dextfuncs[] =
+{
+ {"glTexImage3DEXT", (void **) &qglTexImage3D},
+ {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
+ {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
+ {NULL, NULL}
+};
+
+static dllfunction_t stenciltwosidefuncs[] =
+{
+ {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
+ {NULL, NULL}
+};
+
+static dllfunction_t shaderobjectsfuncs[] =
+{
+ {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
+ {"glGetHandleARB", (void **) &qglGetHandleARB},
+ {"glDetachObjectARB", (void **) &qglDetachObjectARB},
+ {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
+ {"glShaderSourceARB", (void **) &qglShaderSourceARB},
+ {"glCompileShaderARB", (void **) &qglCompileShaderARB},
+ {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
+ {"glAttachObjectARB", (void **) &qglAttachObjectARB},
+ {"glLinkProgramARB", (void **) &qglLinkProgramARB},
+ {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
+ {"glValidateProgramARB", (void **) &qglValidateProgramARB},
+ {"glUniform1fARB", (void **) &qglUniform1fARB},
+ {"glUniform2fARB", (void **) &qglUniform2fARB},
+ {"glUniform3fARB", (void **) &qglUniform3fARB},
+ {"glUniform4fARB", (void **) &qglUniform4fARB},
+ {"glUniform1iARB", (void **) &qglUniform1iARB},
+ {"glUniform2iARB", (void **) &qglUniform2iARB},
+ {"glUniform3iARB", (void **) &qglUniform3iARB},
+ {"glUniform4iARB", (void **) &qglUniform4iARB},
+ {"glUniform1fvARB", (void **) &qglUniform1fvARB},
+ {"glUniform2fvARB", (void **) &qglUniform2fvARB},
+ {"glUniform3fvARB", (void **) &qglUniform3fvARB},
+ {"glUniform4fvARB", (void **) &qglUniform4fvARB},
+ {"glUniform1ivARB", (void **) &qglUniform1ivARB},
+ {"glUniform2ivARB", (void **) &qglUniform2ivARB},
+ {"glUniform3ivARB", (void **) &qglUniform3ivARB},
+ {"glUniform4ivARB", (void **) &qglUniform4ivARB},
+ {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
+ {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
+ {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
+ {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
+ {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
+ {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
+ {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
+ {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
+ {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
+ {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
+ {"glGetUniformivARB", (void **) &qglGetUniformivARB},
+ {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
+ {NULL, NULL}
+};
+
+static dllfunction_t vertexshaderfuncs[] =
+{
+// {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
+// {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
+// {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
+// {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
+// {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
+// {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
+// {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
+// {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
+// {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
+// {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
+// {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
+// {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
+// {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
+// {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
+// {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
+// {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
+// {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
+// {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
+// {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
+// {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
+// {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
+// {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
+// {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
+// {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
+// {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
+// {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
+// {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
+// {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
+// {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
+// {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
+// {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
+// {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
+// {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
+// {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
+// {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
+// {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
+ {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
+ {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
+ {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
+ {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
+ {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
+ {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
+// {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
+// {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
+// {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
+// {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
+ {NULL, NULL}
+};
+
+
+void VID_CheckExtensions(void)
+{
+ gl_stencil = vid_bitsperpixel.integer == 32;
+
+ // reset all the gl extension variables here
+ // this should match the declarations
+ gl_max_texture_size = 0;
+ gl_max_3d_texture_size = 0;
+ gl_max_cube_map_texture_size = 0;
+ gl_textureunits = 1;
+ gl_combine_extension = false;
+ gl_supportslockarrays = false;
+ gl_texture3d = false;
+ gl_texturecubemap = false;
+ gl_dot3arb = false;
+ gl_support_clamptoedge = false;
+ gl_support_anisotropy = false;
+ gl_max_anisotropy = 1;
+ gl_support_stenciltwoside = false;
+ gl_support_shader_objects = false;
+ gl_support_shading_language_100 = false;
+ gl_support_vertex_shader = false;
+ gl_support_fragment_shader = false;
+
+ if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
+ Sys_Error("OpenGL 1.1.0 functions not found");
+
+ Con_Printf("GL_VENDOR: %s\n", gl_vendor);
+ Con_Printf("GL_RENDERER: %s\n", gl_renderer);
+ Con_Printf("GL_VERSION: %s\n", gl_version);
+ Con_Printf("GL_EXTENSIONS: %s\n", gl_extensions);
+ Con_Printf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
+
+ qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max_texture_size);
+
+ Con_Print("Checking OpenGL extensions...\n");
+
+// COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
+ if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
+ GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
+
+// COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
+ if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
+ {
+ qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
+// COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
+ gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
+// COMMANDLINEOPTION: GL: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
+ if (gl_combine_extension)
+ gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
+ }
+
+// COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
+ if ((gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false)))
+ qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &gl_max_3d_texture_size);
+// COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
+ if ((gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false)))
+ qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &gl_max_cube_map_texture_size);
+// COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
+ gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
+// COMMANDLINEOPTION: GL: -noedgeclamp disables GL_EXT_texture_edge_clamp or GL_SGIS_texture_edge_clamp (recommended, some cards do not support the other texture clamp method)
+ gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
+
+// COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
+ if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
+ qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
+
+// COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (accelerates shadow rendering)
+ gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
+
+ // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
+ if (qglDrawRangeElements == NULL)
+ qglDrawRangeElements = qglDrawRangeElementsEXT;
+
+// COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
+// COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
+// COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
+// COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
+ if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
+ if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
+ if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
+ gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
+
+// COMMANDLINEOPTION: GL: -nohalffloat disables GL_NV_half_float extension
+ gl_support_half_float = GL_CheckExtension("GL_NV_half_float", NULL, "-nohalffloat", false);
+}
+