8 // LordHavoc: these are only set in wgl
9 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
10 qboolean isRagePro = false; // LordHavoc: the ATI Rage Pro has limitations with per pixel alpha (the color scaler does not apply to per pixel alpha images...), although not as bad as a G200.
12 // AK FIXME -> input_dest
13 qboolean in_client_mouse = true;
15 // AK where should it be placed ?
16 float in_mouse_x, in_mouse_y;
18 // GL_ARB_multitexture
19 int gl_textureunits = 1;
20 // GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
21 int gl_combine_extension = false;
22 // GL_EXT_compiled_vertex_array
23 int gl_supportslockarrays = false;
24 // GLX_SGI_swap_control or WGL_EXT_swap_control
25 int gl_videosyncavailable = false;
27 int gl_stencil = false;
28 // 3D textures available
29 int gl_texture3d = false;
30 // GL_ARB_texture_cubemap
31 int gl_texturecubemap = false;
32 // GL_ARB_texture_env_dot3
33 int gl_dot3arb = false;
34 // GL_SGIS_texture_edge_clamp
35 int gl_support_clamptoedge = false;
36 // GL_EXT_texture_filter_anisotropic
37 int gl_support_anisotropy = false;
38 int gl_max_anisotropy = 1;
39 // GL_NV_texture_shader
40 int gl_textureshader = false;
41 // GL_EXT_stencil_two_side
42 int gl_support_stenciltwoside = false;
43 // GL_ARB_shader_objects
44 int gl_support_shader_objects = false;
45 // GL_ARB_shading_language_100
46 int gl_support_shading_language_100 = false;
47 // GL_ARB_vertex_shader
48 int gl_support_vertex_shader = false;
49 // GL_ARB_fragment_shader
50 int gl_support_fragment_shader = false;
52 int gl_support_half_float = false;
54 // LordHavoc: if window is hidden, don't update screen
55 qboolean vid_hidden = true;
56 // LordHavoc: if window is not the active window, don't hog as much CPU time,
57 // let go of the mouse, turn off sound, and restore system gamma ramps...
58 qboolean vid_activewindow = true;
60 // we don't know until we try it!
61 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1"};
62 // whether hardware gamma ramps are currently in effect
63 qboolean vid_usinghwgamma = false;
65 unsigned short vid_gammaramps[768];
66 unsigned short vid_systemgammaramps[768];
68 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1"};
69 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640"};
70 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480"};
71 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32"};
73 cvar_t vid_vsync = {CVAR_SAVE, "vid_vsync", "0"};
74 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
75 cvar_t gl_combine = {0, "gl_combine", "1"};
76 cvar_t gl_finish = {0, "gl_finish", "0"};
78 cvar_t v_gamma = {CVAR_SAVE, "v_gamma", "1"};
79 cvar_t v_contrast = {CVAR_SAVE, "v_contrast", "1"};
80 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0"};
81 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0"};
82 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0"};
83 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0"};
84 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0"};
85 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5"};
86 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5"};
87 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5"};
88 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1"};
89 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1"};
90 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1"};
91 cvar_t v_hwgamma = {CVAR_SAVE, "v_hwgamma", "1"};
92 cvar_t v_psycho = {0, "v_psycho", "0"};
94 // brand of graphics chip
95 const char *gl_vendor;
96 // graphics chip model and other information
97 const char *gl_renderer;
98 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
99 const char *gl_version;
100 // extensions list, space separated
101 const char *gl_extensions;
103 const char *gl_platform;
104 // another extensions list, containing platform-specific extensions that are
105 // not in the main list
106 const char *gl_platformextensions;
107 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
110 // GL_ARB_multitexture
111 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
112 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
113 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
114 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
115 void (GLAPIENTRY *qglActiveTexture) (GLenum);
116 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
118 // GL_EXT_compiled_vertex_array
119 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
120 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
122 //GL_NV_vertex_array_range
123 GLvoid *(GLAPIENTRY *qglAllocateMemoryNV)(GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority);
124 GLvoid (GLAPIENTRY *qglFreeMemoryNV)(GLvoid *pointer);
125 GLvoid (GLAPIENTRY *qglVertexArrayRangeNV)(GLsizei length, GLvoid *pointer);
126 GLvoid (GLAPIENTRY *qglFlushVertexArrayRangeNV)(GLvoid);
128 // general GL functions
130 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
132 void (GLAPIENTRY *qglClear)(GLbitfield mask);
134 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
135 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
136 void (GLAPIENTRY *qglCullFace)(GLenum mode);
138 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
139 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
140 void (GLAPIENTRY *qglEnable)(GLenum cap);
141 void (GLAPIENTRY *qglDisable)(GLenum cap);
142 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
144 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
145 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
147 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
148 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
149 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
150 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
152 GLenum (GLAPIENTRY *qglGetError)(void);
153 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
154 void (GLAPIENTRY *qglFinish)(void);
155 void (GLAPIENTRY *qglFlush)(void);
157 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
158 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
159 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
160 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
161 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
163 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
164 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
165 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
166 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
167 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
168 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
169 void (GLAPIENTRY *qglArrayElement)(GLint i);
171 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
172 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
173 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
174 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
175 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
176 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
177 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
178 void (GLAPIENTRY *qglBegin)(GLenum mode);
179 void (GLAPIENTRY *qglEnd)(void);
181 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
182 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
183 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
184 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
185 void (GLAPIENTRY *qglPushMatrix)(void);
186 void (GLAPIENTRY *qglPopMatrix)(void);
187 void (GLAPIENTRY *qglLoadIdentity)(void);
188 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
189 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
190 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
191 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
192 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
193 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
194 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
195 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
196 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
197 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
199 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
201 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
202 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
203 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
204 void (GLAPIENTRY *qglClearStencil)(GLint s);
206 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
207 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
208 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
209 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
210 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
211 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
213 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
214 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
215 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
216 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
217 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
218 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
219 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
220 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
222 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
223 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
224 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
225 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
226 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
227 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
228 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
229 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
232 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
234 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
236 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
237 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);
238 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
240 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
242 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
244 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
246 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
247 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
248 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
249 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
250 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
251 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
252 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
253 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
254 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
255 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
256 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
257 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
258 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
259 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
260 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
261 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
262 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
263 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
264 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
265 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
266 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
267 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
268 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
269 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
270 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
271 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
272 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
273 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
274 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
275 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
276 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
277 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
278 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
279 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
280 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
281 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
282 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
283 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
284 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
286 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
287 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
288 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
289 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
290 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
291 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
292 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
293 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
294 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
295 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
296 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
297 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
298 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
299 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
300 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
301 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
302 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
303 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
304 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
305 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
306 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
307 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
308 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
309 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
310 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
311 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
312 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
313 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
314 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
315 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
316 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
317 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
318 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
319 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
320 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
321 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
322 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
323 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
324 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
325 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
326 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
327 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
328 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
329 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
330 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
331 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
333 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
336 const dllfunction_t *func;
338 Con_Printf("checking for %s... ", name);
340 for (func = funcs;func && func->name;func++)
341 *func->funcvariable = NULL;
343 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
345 Con_Print("disabled by commandline\n");
349 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)))
351 for (func = funcs;func && func->name != NULL;func++)
353 // functions are cleared before all the extensions are evaluated
354 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
357 Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
361 // delay the return so it prints all missing functions
364 Con_Print("enabled\n");
369 Con_Print("not detected\n");
374 static dllfunction_t opengl110funcs[] =
376 {"glClearColor", (void **) &qglClearColor},
377 {"glClear", (void **) &qglClear},
378 {"glAlphaFunc", (void **) &qglAlphaFunc},
379 {"glBlendFunc", (void **) &qglBlendFunc},
380 {"glCullFace", (void **) &qglCullFace},
381 {"glDrawBuffer", (void **) &qglDrawBuffer},
382 {"glReadBuffer", (void **) &qglReadBuffer},
383 {"glEnable", (void **) &qglEnable},
384 {"glDisable", (void **) &qglDisable},
385 {"glIsEnabled", (void **) &qglIsEnabled},
386 {"glEnableClientState", (void **) &qglEnableClientState},
387 {"glDisableClientState", (void **) &qglDisableClientState},
388 {"glGetBooleanv", (void **) &qglGetBooleanv},
389 {"glGetDoublev", (void **) &qglGetDoublev},
390 {"glGetFloatv", (void **) &qglGetFloatv},
391 {"glGetIntegerv", (void **) &qglGetIntegerv},
392 {"glGetError", (void **) &qglGetError},
393 {"glGetString", (void **) &qglGetString},
394 {"glFinish", (void **) &qglFinish},
395 {"glFlush", (void **) &qglFlush},
396 {"glClearDepth", (void **) &qglClearDepth},
397 {"glDepthFunc", (void **) &qglDepthFunc},
398 {"glDepthMask", (void **) &qglDepthMask},
399 {"glDepthRange", (void **) &qglDepthRange},
400 {"glDrawElements", (void **) &qglDrawElements},
401 {"glColorMask", (void **) &qglColorMask},
402 {"glVertexPointer", (void **) &qglVertexPointer},
403 {"glNormalPointer", (void **) &qglNormalPointer},
404 {"glColorPointer", (void **) &qglColorPointer},
405 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
406 {"glArrayElement", (void **) &qglArrayElement},
407 {"glColor4f", (void **) &qglColor4f},
408 {"glTexCoord1f", (void **) &qglTexCoord1f},
409 {"glTexCoord2f", (void **) &qglTexCoord2f},
410 {"glTexCoord3f", (void **) &qglTexCoord3f},
411 {"glTexCoord4f", (void **) &qglTexCoord4f},
412 {"glVertex2f", (void **) &qglVertex2f},
413 {"glVertex3f", (void **) &qglVertex3f},
414 {"glBegin", (void **) &qglBegin},
415 {"glEnd", (void **) &qglEnd},
416 {"glMatrixMode", (void **) &qglMatrixMode},
417 {"glOrtho", (void **) &qglOrtho},
418 {"glFrustum", (void **) &qglFrustum},
419 {"glViewport", (void **) &qglViewport},
420 {"glPushMatrix", (void **) &qglPushMatrix},
421 {"glPopMatrix", (void **) &qglPopMatrix},
422 {"glLoadIdentity", (void **) &qglLoadIdentity},
423 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
424 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
425 {"glMultMatrixd", (void **) &qglMultMatrixd},
426 {"glMultMatrixf", (void **) &qglMultMatrixf},
427 {"glRotated", (void **) &qglRotated},
428 {"glRotatef", (void **) &qglRotatef},
429 {"glScaled", (void **) &qglScaled},
430 {"glScalef", (void **) &qglScalef},
431 {"glTranslated", (void **) &qglTranslated},
432 {"glTranslatef", (void **) &qglTranslatef},
433 {"glReadPixels", (void **) &qglReadPixels},
434 {"glStencilFunc", (void **) &qglStencilFunc},
435 {"glStencilMask", (void **) &qglStencilMask},
436 {"glStencilOp", (void **) &qglStencilOp},
437 {"glClearStencil", (void **) &qglClearStencil},
438 {"glTexEnvf", (void **) &qglTexEnvf},
439 {"glTexEnvfv", (void **) &qglTexEnvfv},
440 {"glTexEnvi", (void **) &qglTexEnvi},
441 {"glTexParameterf", (void **) &qglTexParameterf},
442 {"glTexParameterfv", (void **) &qglTexParameterfv},
443 {"glTexParameteri", (void **) &qglTexParameteri},
444 {"glPixelStoref", (void **) &qglPixelStoref},
445 {"glPixelStorei", (void **) &qglPixelStorei},
446 {"glGenTextures", (void **) &qglGenTextures},
447 {"glDeleteTextures", (void **) &qglDeleteTextures},
448 {"glBindTexture", (void **) &qglBindTexture},
449 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
450 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
451 {"glIsTexture", (void **) &qglIsTexture},
452 {"glTexImage1D", (void **) &qglTexImage1D},
453 {"glTexImage2D", (void **) &qglTexImage2D},
454 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
455 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
456 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
457 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
458 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
459 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
460 {"glScissor", (void **) &qglScissor},
461 {"glPolygonOffset", (void **) &qglPolygonOffset},
465 static dllfunction_t drawrangeelementsfuncs[] =
467 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
471 static dllfunction_t drawrangeelementsextfuncs[] =
473 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
477 static dllfunction_t multitexturefuncs[] =
479 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
480 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
481 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
482 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
483 {"glActiveTextureARB", (void **) &qglActiveTexture},
484 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
488 static dllfunction_t compiledvertexarrayfuncs[] =
490 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
491 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
495 static dllfunction_t texture3dextfuncs[] =
497 {"glTexImage3DEXT", (void **) &qglTexImage3D},
498 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
499 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
503 static dllfunction_t stenciltwosidefuncs[] =
505 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
509 static dllfunction_t shaderobjectsfuncs[] =
511 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
512 {"glGetHandleARB", (void **) &qglGetHandleARB},
513 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
514 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
515 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
516 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
517 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
518 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
519 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
520 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
521 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
522 {"glUniform1fARB", (void **) &qglUniform1fARB},
523 {"glUniform2fARB", (void **) &qglUniform2fARB},
524 {"glUniform3fARB", (void **) &qglUniform3fARB},
525 {"glUniform4fARB", (void **) &qglUniform4fARB},
526 {"glUniform1iARB", (void **) &qglUniform1iARB},
527 {"glUniform2iARB", (void **) &qglUniform2iARB},
528 {"glUniform3iARB", (void **) &qglUniform3iARB},
529 {"glUniform4iARB", (void **) &qglUniform4iARB},
530 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
531 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
532 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
533 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
534 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
535 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
536 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
537 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
538 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
539 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
540 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
541 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
542 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
543 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
544 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
545 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
546 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
547 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
548 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
549 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
553 static dllfunction_t vertexshaderfuncs[] =
555 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
556 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
557 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
558 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
559 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
560 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
561 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
562 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
563 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
564 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
565 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
566 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
567 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
568 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
569 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
570 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
571 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
572 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
573 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
574 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
575 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
576 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
577 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
578 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
579 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
580 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
581 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
582 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
583 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
584 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
585 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
586 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
587 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
588 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
589 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
590 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
591 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
592 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
593 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
594 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
595 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
596 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
597 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
598 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
599 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
600 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
605 void VID_CheckExtensions(void)
607 gl_stencil = vid_bitsperpixel.integer == 32;
609 // reset all the gl extension variables here
610 // this should match the declarations
612 gl_combine_extension = false;
613 gl_supportslockarrays = false;
614 gl_texture3d = false;
615 gl_texturecubemap = false;
617 gl_support_clamptoedge = false;
618 gl_support_anisotropy = false;
619 gl_max_anisotropy = 1;
620 gl_textureshader = false;
621 gl_support_stenciltwoside = false;
622 gl_support_shader_objects = false;
623 gl_support_shading_language_100 = false;
624 gl_support_vertex_shader = false;
625 gl_support_fragment_shader = false;
627 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
628 Sys_Error("OpenGL 1.1.0 functions not found\n");
630 Con_Printf("GL_VENDOR: %s\n", gl_vendor);
631 Con_Printf("GL_RENDERER: %s\n", gl_renderer);
632 Con_Printf("GL_VERSION: %s\n", gl_version);
633 Con_Printf("GL_EXTENSIONS: %s\n", gl_extensions);
634 Con_Printf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
636 Con_Print("Checking OpenGL extensions...\n");
638 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
639 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
640 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
642 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
643 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
645 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
646 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
647 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
648 // COMMANDLINEOPTION: GL: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
649 if (gl_combine_extension)
650 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
653 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
654 gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
655 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
656 gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
657 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
658 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
659 // 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)
660 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
662 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
663 if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
664 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
666 // COMMANDLINEOPTION: GL: -notextureshader disables GL_NV_texture_shader (required for the Geforce3 water shader, NVIDIA only)
667 gl_textureshader = GL_CheckExtension("GL_NV_texture_shader", NULL, "-notextureshader", false);
669 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (accelerates shadow rendering)
670 gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
672 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
673 if (qglDrawRangeElements == NULL)
674 qglDrawRangeElements = qglDrawRangeElementsEXT;
676 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
677 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
678 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
679 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
680 if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
681 if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
682 if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
683 gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
685 // COMMANDLINEOPTION: GL: -nohalffloat disables GL_NV_half_float extension
686 gl_support_half_float = GL_CheckExtension("GL_NV_half_float", NULL, "-nohalffloat", false);
689 qboolean vid_vertexarrays_are_var = false;
690 void *VID_AllocVertexArrays(mempool_t *pool, int size, int fast, float readfrequency, float writefrequency, float priority)
693 vid_vertexarrays_are_var = false;
694 if (fast && qglAllocateMemoryNV)
697 m = qglAllocateMemoryNV(size, readfrequency, writefrequency, priority);
701 vid_vertexarrays_are_var = true;
705 return Mem_Alloc(pool, size);
708 void VID_FreeVertexArrays(void *pointer)
710 if (vid_vertexarrays_are_var)
713 qglFreeMemoryNV(pointer);
718 vid_vertexarrays_are_var = false;
721 void Force_CenterView_f (void)
723 cl.viewangles[PITCH] = 0;
726 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
727 static int cachecolorenable, cachehwgamma;
728 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
729 void VID_UpdateGamma(qboolean force)
733 static int forcenextframe = false;
735 // LordHavoc: don't mess with gamma tables if running dedicated
736 if (cls.state == ca_dedicated)
742 && vid_usinghwgamma == (vid_activewindow && v_hwgamma.integer)
743 && v_gamma.value == cachegamma
744 && v_contrast.value == cachecontrast
745 && v_brightness.value == cachebrightness
746 && cachecolorenable == v_color_enable.integer
747 && cacheblack[0] == v_color_black_r.value
748 && cacheblack[1] == v_color_black_g.value
749 && cacheblack[2] == v_color_black_b.value
750 && cachegrey[0] == v_color_grey_r.value
751 && cachegrey[1] == v_color_grey_g.value
752 && cachegrey[2] == v_color_grey_b.value
753 && cachewhite[0] == v_color_white_r.value
754 && cachewhite[1] == v_color_white_g.value
755 && cachewhite[2] == v_color_white_b.value)
758 forcenextframe = false;
760 if (vid_activewindow && v_hwgamma.integer)
762 if (!vid_usinghwgamma)
764 vid_usinghwgamma = true;
765 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_GetGamma(vid_systemgammaramps));
768 BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
769 BOUNDCVAR(v_contrast, 1, 5);cachecontrast = v_contrast.value;
770 BOUNDCVAR(v_brightness, 0, 0.8);cachebrightness = v_brightness.value;
771 BOUNDCVAR(v_color_black_r, 0, 0.8);cacheblack[0] = v_color_black_r.value;
772 BOUNDCVAR(v_color_black_g, 0, 0.8);cacheblack[1] = v_color_black_g.value;
773 BOUNDCVAR(v_color_black_b, 0, 0.8);cacheblack[2] = v_color_black_b.value;
774 BOUNDCVAR(v_color_grey_r, 0, 0.95);cachegrey[0] = v_color_grey_r.value;
775 BOUNDCVAR(v_color_grey_g, 0, 0.95);cachegrey[1] = v_color_grey_g.value;
776 BOUNDCVAR(v_color_grey_b, 0, 0.95);cachegrey[2] = v_color_grey_b.value;
777 BOUNDCVAR(v_color_white_r, 1, 5);cachewhite[0] = v_color_white_r.value;
778 BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
779 BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
780 cachecolorenable = v_color_enable.integer;
781 cachehwgamma = v_hwgamma.integer;
783 if (cachecolorenable)
785 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps);
786 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + 256);
787 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + 512);
791 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps);
792 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 256);
793 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 512);
796 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
797 // immensely butchered it to work with variable framerates and fit in with
798 // the rest of darkplaces.
799 if (v_psycho.integer)
803 static float n[3], nd[3], nt[3];
804 static int init = true;
805 unsigned short *ramp;
806 forcenextframe = true;
810 for (x = 0;x < 3;x++)
812 n[x] = lhrandom(0, 1);
813 nd[x] = (rand()&1)?-0.25:0.25;
814 nt[x] = lhrandom(1, 8.2);
818 for (x = 0;x < 3;x++)
820 nt[x] -= host_realframetime;
824 nt[x] += lhrandom(1, 8.2);
826 n[x] += nd[x] * host_realframetime;
830 for (x = 0, ramp = vid_gammaramps;x < 3;x++)
831 for (y = 0, t = n[x] - 0.75f;y < 256;y++, t += 0.75f * (2.0f / 256.0f))
832 *ramp++ = cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f;
835 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps));
836 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
837 if(!vid_hardwaregammasupported.integer)
838 VID_SetGamma(vid_systemgammaramps);
842 if (vid_usinghwgamma)
844 vid_usinghwgamma = false;
845 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps));
850 void VID_RestoreSystemGamma(void)
852 if (vid_usinghwgamma)
854 vid_usinghwgamma = false;
855 VID_SetGamma(vid_systemgammaramps);
859 void VID_Shared_Init(void)
861 Cvar_RegisterVariable(&vid_hardwaregammasupported);
862 Cvar_RegisterVariable(&v_gamma);
863 Cvar_RegisterVariable(&v_brightness);
864 Cvar_RegisterVariable(&v_contrast);
866 Cvar_RegisterVariable(&v_color_enable);
867 Cvar_RegisterVariable(&v_color_black_r);
868 Cvar_RegisterVariable(&v_color_black_g);
869 Cvar_RegisterVariable(&v_color_black_b);
870 Cvar_RegisterVariable(&v_color_grey_r);
871 Cvar_RegisterVariable(&v_color_grey_g);
872 Cvar_RegisterVariable(&v_color_grey_b);
873 Cvar_RegisterVariable(&v_color_white_r);
874 Cvar_RegisterVariable(&v_color_white_g);
875 Cvar_RegisterVariable(&v_color_white_b);
877 Cvar_RegisterVariable(&v_hwgamma);
879 Cvar_RegisterVariable(&v_psycho);
881 Cvar_RegisterVariable(&vid_fullscreen);
882 Cvar_RegisterVariable(&vid_width);
883 Cvar_RegisterVariable(&vid_height);
884 Cvar_RegisterVariable(&vid_bitsperpixel);
885 Cvar_RegisterVariable(&vid_vsync);
886 Cvar_RegisterVariable(&vid_mouse);
887 Cvar_RegisterVariable(&gl_combine);
888 Cvar_RegisterVariable(&gl_finish);
889 Cmd_AddCommand("force_centerview", Force_CenterView_f);
890 Cmd_AddCommand("vid_restart", VID_Restart_f);
891 if (gamemode == GAME_GOODVSBAD2)
892 Cvar_Set("gl_combine", "0");
895 int VID_Mode(int fullscreen, int width, int height, int bpp)
897 Con_Printf("Video: %s %dx%dx%d\n", fullscreen ? "fullscreen" : "window", width, height, bpp);
898 if (VID_InitMode(fullscreen, width, height, bpp))
900 vid.fullscreen = fullscreen;
903 vid.bitsperpixel = bpp;
904 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
905 Cvar_SetValueQuick(&vid_width, width);
906 Cvar_SetValueQuick(&vid_height, height);
907 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
914 static void VID_OpenSystems(void)
920 static void VID_CloseSystems(void)
923 R_Modules_Shutdown();
926 qboolean vid_commandlinecheck = true;
928 void VID_Restart_f(void)
930 // don't crash if video hasn't started yet
931 if (vid_commandlinecheck)
934 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp, to %s %dx%dx%dbpp.\n",
935 vid.fullscreen ? "fullscreen" : "window", vid.width, vid.height, vid.bitsperpixel,
936 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
939 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer))
941 Con_Print("Video mode change failed\n");
942 if (!VID_Mode(vid.fullscreen, vid.width, vid.height, vid.bitsperpixel))
943 Sys_Error("Unable to restore to last working video mode\n");
948 // this is only called once by Host_StartVideo
951 int i, width, height, success;
952 if (vid_commandlinecheck)
954 // interpret command-line parameters
955 vid_commandlinecheck = false;
956 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
957 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
958 Cvar_SetValueQuick(&vid_fullscreen, false);
959 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
960 if (COM_CheckParm("-fullscreen"))
961 Cvar_SetValueQuick(&vid_fullscreen, true);
964 // COMMANDLINEOPTION: Video: -width <pixels> performs +vid_width <pixels> and also +vid_height <pixels*3/4> if only -width is specified (example: -width 1024 sets 1024x768 mode)
965 if ((i = COM_CheckParm("-width")) != 0)
966 width = atoi(com_argv[i+1]);
967 // COMMANDLINEOPTION: Video: -height <pixels> performs +vid_height <pixels> and also +vid_width <pixels*4/3> if only -height is specified (example: -height 768 sets 1024x768 mode)
968 if ((i = COM_CheckParm("-height")) != 0)
969 height = atoi(com_argv[i+1]);
971 width = height * 4 / 3;
973 height = width * 3 / 4;
975 Cvar_SetValueQuick(&vid_width, width);
977 Cvar_SetValueQuick(&vid_height, height);
978 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
979 if ((i = COM_CheckParm("-bpp")) != 0)
980 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
983 Con_Print("Starting video system\n");
984 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
987 Con_Print("Desired video mode fail, trying fallbacks...\n");
988 if (!success && vid_bitsperpixel.integer > 16)
989 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, 16);
990 if (!success && (vid_width.integer > 640 || vid_height.integer > 480))
991 success = VID_Mode(vid_fullscreen.integer, 640, 480, 16);
992 if (!success && vid_fullscreen.integer)
993 success = VID_Mode(false, 640, 480, 16);
995 Sys_Error("Video modes failed\n");