added GL_ARB_shader_objects, GL_ARB_shading_language_100, GL_ARB_vertex_shader, GL_AR...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@4363 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/glquake.h b/glquake.h
index 31cd56f024362647ec539f4288eb8fc982edff98..71a1f2905053573ddfdd8b823c0d08b2bb922b15 100644 (file)
--- a/glquake.h
+++ b/glquake.h
@@ -511,6 +511,178 @@ extern BOOL (WINAPI *qwglMakeCurrent)(HDC, HGLRC);
 extern BOOL (WINAPI *qwglSwapIntervalEXT)(int interval);
 #endif
 
+#ifndef GL_PROGRAM_OBJECT_ARB
+// 1-byte character string
+typedef char GLcharARB;
+// 4-byte integer handle to a shader object or program object
+typedef int GLhandleARB;
+#endif
+
+extern void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
+extern GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
+extern void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
+extern GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
+extern void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
+extern void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
+extern GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
+extern void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
+extern void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
+extern void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
+extern void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
+extern void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
+extern void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
+extern void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
+extern void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+extern void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
+extern void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
+extern void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
+extern void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+extern void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
+extern void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
+extern void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
+extern void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
+extern void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
+extern void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
+extern void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
+extern void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
+extern void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+extern void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+extern void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+extern void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
+extern void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
+extern void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
+extern void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
+extern GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
+extern void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, uint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
+extern void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
+extern void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
+extern void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
+#ifndef GL_PROGRAM_OBJECT_ARB
+#define GL_PROGRAM_OBJECT_ARB                                  0x8B40
+#define GL_OBJECT_TYPE_ARB                                             0x8B4E
+#define GL_OBJECT_SUBTYPE_ARB                                  0x8B4F
+#define GL_OBJECT_DELETE_STATUS_ARB                            0x8B80
+#define GL_OBJECT_COMPILE_STATUS_ARB                   0x8B81
+#define GL_OBJECT_LINK_STATUS_ARB                              0x8B82
+#define GL_OBJECT_VALIDATE_STATUS_ARB                  0x8B83
+#define GL_OBJECT_INFO_LOG_LENGTH_ARB                  0x8B84
+#define GL_OBJECT_ATTACHED_OBJECTS_ARB                 0x8B85
+#define GL_OBJECT_ACTIVE_UNIFORMS_ARB                  0x8B86
+#define GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB        0x8B87
+#define GL_OBJECT_SHADER_SOURCE_LENGTH_ARB             0x8B88
+#define GL_SHADER_OBJECT_ARB                                   0x8B48
+#define GL_FLOAT                                                               0x1406
+#define GL_FLOAT_VEC2_ARB                                              0x8B50
+#define GL_FLOAT_VEC3_ARB                                              0x8B51
+#define GL_FLOAT_VEC4_ARB                                              0x8B52
+#define GL_INT                                                                 0x1404
+#define GL_INT_VEC2_ARB                                                        0x8B53
+#define GL_INT_VEC3_ARB                                                        0x8B54
+#define GL_INT_VEC4_ARB                                                        0x8B55
+#define GL_BOOL_ARB                                                            0x8B56
+#define GL_BOOL_VEC2_ARB                                               0x8B57
+#define GL_BOOL_VEC3_ARB                                               0x8B58
+#define GL_BOOL_VEC4_ARB                                               0x8B59
+#define GL_FLOAT_MAT2_ARB                                              0x8B5A
+#define GL_FLOAT_MAT3_ARB                                              0x8B5B
+#define GL_FLOAT_MAT4_ARB                                              0x8B5C
+#define GL_SAMPLER_1D_ARB                                              0x8B5D
+#define GL_SAMPLER_2D_ARB                                              0x8B5E
+#define GL_SAMPLER_3D_ARB                                              0x8B5F
+#define GL_SAMPLER_CUBE_ARB                                            0x8B60
+#define GL_SAMPLER_1D_SHADOW_ARB                               0x8B61
+#define GL_SAMPLER_2D_SHADOW_ARB                               0x8B62
+#define GL_SAMPLER_2D_RECT_ARB                                 0x8B63
+#define GL_SAMPLER_2D_RECT_SHADOW_ARB                  0x8B64
+#endif
+
+//extern void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
+//extern void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
+//extern void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
+//extern void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
+//extern void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
+//extern void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
+//extern void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
+//extern void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
+//extern void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
+//extern void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+//extern void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
+//extern void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
+//extern void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
+//extern void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
+//extern void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
+//extern void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
+//extern void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
+//extern void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
+//extern void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
+//extern void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
+//extern void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
+//extern void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
+//extern void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
+extern void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
+extern void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
+extern void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
+extern void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
+extern void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
+extern GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
+//extern void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
+//extern void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
+//extern void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
+//extern void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
+#ifndef GL_VERTEX_SHADER_ARB
+#define GL_VERTEX_SHADER_ARB                                           0x8B31
+#define GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB           0x8B4A
+#define GL_MAX_VARYING_FLOATS_ARB                                      0x8B4B
+#define GL_MAX_VERTEX_ATTRIBS_ARB                                      0x8869
+#define GL_MAX_TEXTURE_IMAGE_UNITS_ARB                         0x8872
+#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB          0x8B4C
+#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB                0x8B4D
+#define GL_MAX_TEXTURE_COORDS_ARB                                      0x8871
+#define GL_VERTEX_PROGRAM_POINT_SIZE_ARB                       0x8642
+#define GL_VERTEX_PROGRAM_TWO_SIDE_ARB                         0x8643
+#define GL_OBJECT_ACTIVE_ATTRIBUTES_ARB                                0x8B89
+#define GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB      0x8B8A
+#define GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB                     0x8622
+#define GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB                                0x8623
+#define GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB                      0x8624
+#define GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB                                0x8625
+#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB          0x886A
+#define GL_CURRENT_VERTEX_ATTRIB_ARB                           0x8626
+#define GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB                     0x8645
+#define GL_FLOAT                                                                       0x1406
+#define GL_FLOAT_VEC2_ARB                                                      0x8B50
+#define GL_FLOAT_VEC3_ARB                                                      0x8B51
+#define GL_FLOAT_VEC4_ARB                                                      0x8B52
+#define GL_FLOAT_MAT2_ARB                                                      0x8B5A
+#define GL_FLOAT_MAT3_ARB                                                      0x8B5B
+#define GL_FLOAT_MAT4_ARB                                                      0x8B5C
+#endif
+
+#ifndef GL_FRAGMENT_SHADER_ARB
+#define GL_FRAGMENT_SHADER_ARB                                         0x8B30
+#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB         0x8B49
+#define GL_MAX_TEXTURE_COORDS_ARB                                      0x8871
+#define GL_MAX_TEXTURE_IMAGE_UNITS_ARB                         0x8872
+#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB         0x8B8B
+#endif
+
+#ifndef GL_SHADING_LANGUAGE_VERSION_ARB
+#define GL_SHADING_LANGUAGE_VERSION_ARB                                0x8B8C
+#endif
+
 #define DEBUGGL
 
 #ifdef DEBUGGL

diff --git a/vid_shared.c b/vid_shared.c
index b80d26aa9b60b88edb15b83cd9f11ccf396c944f..8851e21da2978228498af2c60197de5b7c2c7b4b 100644 (file)
--- a/vid_shared.c
+++ b/vid_shared.c
@@ -43,6 +43,14 @@ int gl_max_anisotropy = 1;
 int gl_textureshader = false;
 // GL_EXT_stencil_two_side
 int gl_support_stenciltwoside = false;
+// GL_ARB_shader_objects
+int gl_support_shader_objects = false;
+// GL_ARB_shading_language_100
+int gl_support_shading_language_100 = false;
+// GL_ARB_vertex_shader
+int gl_support_vertex_shader = false;
+// GL_ARB_fragment_shader
+int gl_support_fragment_shader = false;
 
 // LordHavoc: if window is hidden, don't update screen
 int vid_hidden = true;
@@ -237,6 +245,93 @@ void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
 
 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;
@@ -427,6 +522,101 @@ static dllfunction_t stenciltwosidefuncs[] =
        {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)
 {
@@ -448,6 +638,10 @@ void VID_CheckExtensions(void)
        gl_max_anisotropy = 1;
        gl_textureshader = false;
        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\n");
@@ -493,6 +687,11 @@ void VID_CheckExtensions(void)
        // 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;
+
+       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);
 }
 
 int vid_vertexarrays_are_var = false;