7 // LordHavoc: these are only set in wgl
8 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
9 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.
11 // GL_ARB_multitexture
12 int gl_textureunits = 0;
13 // GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
14 int gl_combine_extension = false;
15 // GL_EXT_compiled_vertex_array
16 int gl_supportslockarrays = false;
17 // GLX_SGI_video_sync or WGL_EXT_swap_control
18 int gl_videosyncavailable = false;
20 int gl_stencil = false;
21 // 3D textures available
22 int gl_texture3d = false;
23 // GL_ARB_texture_cubemap
24 int gl_texturecubemap = false;
25 // GL_ARB_texture_env_dot3
26 int gl_dot3arb = false;
27 // GL_SGIS_texture_edge_clamp
28 int gl_support_clamptoedge = false;
29 // GL_NV_vertex_array_range
30 int gl_support_var = false;
31 // GL_NV_vertex_array_range2
32 int gl_support_var2 = false;
34 // LordHavoc: if window is hidden, don't update screen
35 int vid_hidden = true;
36 // LordHavoc: if window is not the active window, don't hog as much CPU time,
37 // let go of the mouse, turn off sound, and restore system gamma ramps...
38 int vid_activewindow = true;
39 // LordHavoc: whether to allow use of hwgamma (disabled when window is inactive)
40 int vid_allowhwgamma = false;
42 // we don't know until we try it!
43 int vid_hardwaregammasupported = true;
44 // whether hardware gamma ramps are currently in effect
45 int vid_usinghwgamma = false;
47 unsigned short vid_gammaramps[768];
48 unsigned short vid_systemgammaramps[768];
50 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1"};
51 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640"};
52 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480"};
53 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "16"};
54 cvar_t vid_stencil = {CVAR_SAVE, "vid_stencil", "0"};
56 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
57 cvar_t gl_combine = {0, "gl_combine", "1"};
59 cvar_t in_pitch_min = {0, "in_pitch_min", "-70"};
60 cvar_t in_pitch_max = {0, "in_pitch_max", "80"};
62 cvar_t m_filter = {CVAR_SAVE, "m_filter","0"};
64 cvar_t v_gamma = {CVAR_SAVE, "v_gamma", "1"};
65 cvar_t v_contrast = {CVAR_SAVE, "v_contrast", "1"};
66 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0"};
67 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0"};
68 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0"};
69 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0"};
70 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0"};
71 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5"};
72 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5"};
73 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5"};
74 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1"};
75 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1"};
76 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1"};
77 cvar_t v_overbrightbits = {CVAR_SAVE, "v_overbrightbits", "0"};
78 cvar_t v_hwgamma = {0, "v_hwgamma", "1"};
80 // brand of graphics chip
81 const char *gl_vendor;
82 // graphics chip model and other information
83 const char *gl_renderer;
84 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
85 const char *gl_version;
86 // extensions list, space separated
87 const char *gl_extensions;
89 const char *gl_platform;
90 // another extensions list, containing platform-specific extensions that are
91 // not in the main list
92 const char *gl_platformextensions;
93 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
96 // GL_ARB_multitexture
97 //void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
98 void (GLAPIENTRY *qglActiveTexture) (GLenum);
99 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
101 // GL_EXT_compiled_vertex_array
102 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
103 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
105 //GL_NV_vertex_array_range
106 GLvoid *(GLAPIENTRY *qglAllocateMemoryNV)(GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority);
107 GLvoid (GLAPIENTRY *qglFreeMemoryNV)(GLvoid *pointer);
108 GLvoid (GLAPIENTRY *qglVertexArrayRangeNV)(GLsizei length, GLvoid *pointer);
109 GLvoid (GLAPIENTRY *qglFlushVertexArrayRangeNV)(GLvoid);
111 // general GL functions
113 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
115 void (GLAPIENTRY *qglClear)(GLbitfield mask);
117 //void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
118 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
119 void (GLAPIENTRY *qglCullFace)(GLenum mode);
121 //void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
122 //void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
123 void (GLAPIENTRY *qglEnable)(GLenum cap);
124 void (GLAPIENTRY *qglDisable)(GLenum cap);
125 //GLboolean GLAPIENTRY *qglIsEnabled)(GLenum cap);
127 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
128 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
130 //void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
131 //void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
132 //void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
133 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
135 GLenum (GLAPIENTRY *qglGetError)(void);
136 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
137 void (GLAPIENTRY *qglFinish)(void);
138 void (GLAPIENTRY *qglFlush)(void);
140 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
141 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
142 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
143 //void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
144 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
146 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
147 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
148 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
149 //void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
150 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
151 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
152 //void (GLAPIENTRY *qglArrayElement)(GLint i);
154 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
155 //void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
156 //void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
157 //void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
158 //void (GLAPIENTRY *qglBegin)(GLenum mode);
159 //void (GLAPIENTRY *qglEnd)(void);
161 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
162 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
163 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
164 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
165 //void (GLAPIENTRY *qglPushMatrix)(void);
166 //void (GLAPIENTRY *qglPopMatrix)(void);
167 void (GLAPIENTRY *qglLoadIdentity)(void);
168 //void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
169 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
170 //void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
171 //void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
172 //void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
173 //void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
174 //void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
175 //void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
176 //void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
177 //void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
179 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
181 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
182 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
183 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
184 void (GLAPIENTRY *qglClearStencil)(GLint s);
186 //void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
187 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
188 //void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
189 //void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
190 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
192 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
193 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
194 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
195 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
196 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
197 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
198 //void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
199 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
201 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
202 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
203 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
204 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
205 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
206 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
207 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
208 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
211 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
213 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
215 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
216 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);
217 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
219 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
221 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
223 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
226 const dllfunction_t *func;
228 Con_Printf("checking for %s... ", name);
230 for (func = funcs;func && func->name;func++)
231 *func->funcvariable = NULL;
233 if (disableparm && COM_CheckParm(disableparm))
235 Con_Printf("disabled by commandline\n");
239 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)))
241 for (func = funcs;func && func->name != NULL;func++)
243 // functions are cleared before all the extensions are evaluated
244 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
247 Con_Printf("missing function \"%s\" - broken driver!\n", func->name);
251 // delay the return so it prints all missing functions
254 Con_Printf("enabled\n");
259 Con_Printf("not detected\n");
264 static dllfunction_t opengl110funcs[] =
266 {"glClearColor", (void **) &qglClearColor},
267 {"glClear", (void **) &qglClear},
268 // {"glAlphaFunc", (void **) &qglAlphaFunc},
269 {"glBlendFunc", (void **) &qglBlendFunc},
270 {"glCullFace", (void **) &qglCullFace},
271 // {"glDrawBuffer", (void **) &qglDrawBuffer},
272 // {"glReadBuffer", (void **) &qglReadBuffer},
273 {"glEnable", (void **) &qglEnable},
274 {"glDisable", (void **) &qglDisable},
275 // {"glIsEnabled", (void **) &qglIsEnabled},
276 {"glEnableClientState", (void **) &qglEnableClientState},
277 {"glDisableClientState", (void **) &qglDisableClientState},
278 // {"glGetBooleanv", (void **) &qglGetBooleanv},
279 // {"glGetDoublev", (void **) &qglGetDoublev},
280 // {"glGetFloatv", (void **) &qglGetFloatv},
281 {"glGetIntegerv", (void **) &qglGetIntegerv},
282 {"glGetError", (void **) &qglGetError},
283 {"glGetString", (void **) &qglGetString},
284 {"glFinish", (void **) &qglFinish},
285 {"glFlush", (void **) &qglFlush},
286 {"glClearDepth", (void **) &qglClearDepth},
287 {"glDepthFunc", (void **) &qglDepthFunc},
288 {"glDepthMask", (void **) &qglDepthMask},
289 // {"glDepthRange", (void **) &qglDepthRange},
290 {"glDrawElements", (void **) &qglDrawElements},
291 {"glColorMask", (void **) &qglColorMask},
292 {"glVertexPointer", (void **) &qglVertexPointer},
293 // {"glNormalPointer", (void **) &qglNormalPointer},
294 {"glColorPointer", (void **) &qglColorPointer},
295 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
296 // {"glArrayElement", (void **) &qglArrayElement},
297 {"glColor4f", (void **) &qglColor4f},
298 // {"glTexCoord2f", (void **) &qglTexCoord2f},
299 // {"glVertex2f", (void **) &qglVertex2f},
300 // {"glVertex3f", (void **) &qglVertex3f},
301 // {"glBegin", (void **) &qglBegin},
302 // {"glEnd", (void **) &qglEnd},
303 {"glMatrixMode", (void **) &qglMatrixMode},
304 {"glOrtho", (void **) &qglOrtho},
305 {"glFrustum", (void **) &qglFrustum},
306 {"glViewport", (void **) &qglViewport},
307 // {"glPushMatrix", (void **) &qglPushMatrix},
308 // {"glPopMatrix", (void **) &qglPopMatrix},
309 {"glLoadIdentity", (void **) &qglLoadIdentity},
310 // {"glLoadMatrixd", (void **) &qglLoadMatrixd},
311 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
312 // {"glMultMatrixd", (void **) &qglMultMatrixd},
313 // {"glMultMatrixf", (void **) &qglMultMatrixf},
314 // {"glRotated", (void **) &qglRotated},
315 // {"glRotatef", (void **) &qglRotatef},
316 // {"glScaled", (void **) &qglScaled},
317 // {"glScalef", (void **) &qglScalef},
318 // {"glTranslated", (void **) &qglTranslated},
319 // {"glTranslatef", (void **) &qglTranslatef},
320 {"glReadPixels", (void **) &qglReadPixels},
321 {"glStencilFunc", (void **) &qglStencilFunc},
322 {"glStencilMask", (void **) &qglStencilMask},
323 {"glStencilOp", (void **) &qglStencilOp},
324 {"glClearStencil", (void **) &qglClearStencil},
325 // {"glTexEnvf", (void **) &qglTexEnvf},
326 {"glTexEnvi", (void **) &qglTexEnvi},
327 // {"glTexParameterf", (void **) &qglTexParameterf},
328 // {"glTexParameterfv", (void **) &qglTexParameterfv},
329 {"glTexParameteri", (void **) &qglTexParameteri},
330 // {"glPixelStoref", (void **) &qglPixelStoref},
331 {"glPixelStorei", (void **) &qglPixelStorei},
332 {"glGenTextures", (void **) &qglGenTextures},
333 {"glDeleteTextures", (void **) &qglDeleteTextures},
334 {"glBindTexture", (void **) &qglBindTexture},
335 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
336 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
337 {"glIsTexture", (void **) &qglIsTexture},
338 {"glTexImage1D", (void **) &qglTexImage1D},
339 {"glTexImage2D", (void **) &qglTexImage2D},
340 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
341 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
342 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
343 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
344 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
345 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
346 {"glScissor", (void **) &qglScissor},
347 {"glPolygonOffset", (void **) &qglPolygonOffset},
351 static dllfunction_t drawrangeelementsfuncs[] =
353 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
357 static dllfunction_t drawrangeelementsextfuncs[] =
359 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
363 static dllfunction_t multitexturefuncs[] =
365 //{"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
366 {"glActiveTextureARB", (void **) &qglActiveTexture},
367 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
371 static dllfunction_t compiledvertexarrayfuncs[] =
373 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
374 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
378 static dllfunction_t texture3dextfuncs[] =
380 {"glTexImage3DEXT", (void **) &qglTexImage3D},
381 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
382 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
386 static dllfunction_t glxvarfuncs[] =
388 {"glXAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
389 {"glXFreeMemoryNV", (void **) &qglFreeMemoryNV},
390 {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
391 {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
395 static dllfunction_t wglvarfuncs[] =
397 {"wglAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
398 {"wglFreeMemoryNV", (void **) &qglFreeMemoryNV},
399 {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
400 {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
405 void VID_CheckExtensions(void)
407 gl_stencil = vid_stencil.integer;
408 gl_combine_extension = false;
410 gl_supportslockarrays = false;
412 gl_support_clamptoedge = false;
413 gl_support_var = false;
414 gl_support_var2 = false;
416 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
417 Sys_Error("OpenGL 1.1.0 functions not found\n");
419 Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
420 Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
421 Con_Printf ("GL_VERSION: %s\n", gl_version);
422 Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
423 Con_Printf ("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
425 Con_Printf("Checking OpenGL extensions...\n");
427 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
428 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
430 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
432 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
433 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
434 if (gl_combine_extension)
435 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
438 gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
439 gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
440 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
441 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
443 if (!strcmp(gl_platform, "GLX"))
444 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", glxvarfuncs, "-novar", false);
445 else if (!strcmp(gl_platform, "WGL"))
446 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", wglvarfuncs, "-novar", false);
448 gl_support_var2 = GL_CheckExtension("GL_NV_vertex_array_range2", NULL, "-novar2", false);
450 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
451 if (qglDrawRangeElements == NULL)
452 qglDrawRangeElements = qglDrawRangeElementsEXT;
455 int vid_vertexarrays_are_var = false;
456 void *VID_AllocVertexArrays(mempool_t *pool, int size, int fast, float readfrequency, float writefrequency, float priority)
459 vid_vertexarrays_are_var = false;
460 if (fast && qglAllocateMemoryNV)
463 m = qglAllocateMemoryNV(size, readfrequency, writefrequency, priority);
467 vid_vertexarrays_are_var = true;
471 return Mem_Alloc(pool, size);
474 void VID_FreeVertexArrays(void *pointer)
476 if (vid_vertexarrays_are_var)
479 qglFreeMemoryNV(pointer);
484 vid_vertexarrays_are_var = false;
487 void Force_CenterView_f (void)
489 cl.viewangles[PITCH] = 0;
492 void IN_PreMove(void)
496 void CL_AdjustAngles(void);
497 void IN_PostMove(void)
499 // clamp after the move as well to prevent messed up rendering angles
503 void IN_Mouse(usercmd_t *cmd, float mx, float my)
505 int mouselook = (in_mlook.state & 1) || freelook.integer;
506 float mouse_x, mouse_y;
507 static float old_mouse_x = 0, old_mouse_y = 0;
509 if (m_filter.integer)
511 mouse_x = (mx + old_mouse_x) * 0.5;
512 mouse_y = (my + old_mouse_y) * 0.5;
523 // LordHavoc: viewzoom affects mouse sensitivity for sniping
524 mouse_x *= sensitivity.value * cl.viewzoom;
525 mouse_y *= sensitivity.value * cl.viewzoom;
527 // Add mouse X/Y movement to cmd
528 if ((in_strafe.state & 1) || (lookstrafe.integer && mouselook))
529 cmd->sidemove += m_side.value * mouse_x;
531 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
536 if (mouselook && !(in_strafe.state & 1))
537 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
540 if ((in_strafe.state & 1) && noclip_anglehack)
541 cmd->upmove -= m_forward.value * mouse_y;
543 cmd->forwardmove -= m_forward.value * mouse_y;
547 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
548 static int cacheoverbrightbits = -1, cachecolorenable, cachehwgamma;
549 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
550 void VID_UpdateGamma(qboolean force)
555 // LordHavoc: don't mess with gamma tables if running dedicated
556 if (cls.state == ca_dedicated)
560 && vid_usinghwgamma == (vid_allowhwgamma && v_hwgamma.integer)
561 && v_overbrightbits.integer == cacheoverbrightbits
562 && v_gamma.value == cachegamma
563 && v_contrast.value == cachecontrast
564 && v_brightness.value == cachebrightness
565 && cachecolorenable == v_color_enable.integer
566 && cacheblack[0] == v_color_black_r.value
567 && cacheblack[1] == v_color_black_g.value
568 && cacheblack[2] == v_color_black_b.value
569 && cachegrey[0] == v_color_grey_r.value
570 && cachegrey[1] == v_color_grey_g.value
571 && cachegrey[2] == v_color_grey_b.value
572 && cachewhite[0] == v_color_white_r.value
573 && cachewhite[1] == v_color_white_g.value
574 && cachewhite[2] == v_color_white_b.value)
577 if (vid_allowhwgamma && v_hwgamma.integer)
579 if (!vid_usinghwgamma)
581 vid_usinghwgamma = true;
582 vid_hardwaregammasupported = VID_GetGamma(vid_systemgammaramps);
585 BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
586 BOUNDCVAR(v_contrast, 1, 5);cachecontrast = v_contrast.value;
587 BOUNDCVAR(v_brightness, 0, 0.8);cachebrightness = v_brightness.value;
588 BOUNDCVAR(v_color_black_r, 0, 0.8);cacheblack[0] = v_color_black_r.value;
589 BOUNDCVAR(v_color_black_g, 0, 0.8);cacheblack[1] = v_color_black_g.value;
590 BOUNDCVAR(v_color_black_b, 0, 0.8);cacheblack[2] = v_color_black_b.value;
591 BOUNDCVAR(v_color_grey_r, 0, 0.95);cachegrey[0] = v_color_grey_r.value;
592 BOUNDCVAR(v_color_grey_g, 0, 0.95);cachegrey[1] = v_color_grey_g.value;
593 BOUNDCVAR(v_color_grey_b, 0, 0.95);cachegrey[2] = v_color_grey_b.value;
594 BOUNDCVAR(v_color_white_r, 1, 5);cachewhite[0] = v_color_white_r.value;
595 BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
596 BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
597 cachecolorenable = v_color_enable.integer;
598 cacheoverbrightbits = v_overbrightbits.integer;
599 cachehwgamma = v_hwgamma.integer;
601 if (cachecolorenable)
603 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps);
604 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + 256);
605 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + 512);
609 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps);
610 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 256);
611 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 512);
614 vid_hardwaregammasupported = VID_SetGamma(vid_gammaramps);
618 if (vid_usinghwgamma)
620 vid_usinghwgamma = false;
621 vid_hardwaregammasupported = VID_SetGamma(vid_systemgammaramps);
626 void VID_RestoreSystemGamma(void)
628 if (vid_usinghwgamma)
630 vid_usinghwgamma = false;
631 VID_SetGamma(vid_systemgammaramps);
635 void VID_Shared_Init(void)
637 Cvar_RegisterVariable(&v_gamma);
638 Cvar_RegisterVariable(&v_brightness);
639 Cvar_RegisterVariable(&v_contrast);
641 Cvar_RegisterVariable(&v_color_enable);
642 Cvar_RegisterVariable(&v_color_black_r);
643 Cvar_RegisterVariable(&v_color_black_g);
644 Cvar_RegisterVariable(&v_color_black_b);
645 Cvar_RegisterVariable(&v_color_grey_r);
646 Cvar_RegisterVariable(&v_color_grey_g);
647 Cvar_RegisterVariable(&v_color_grey_b);
648 Cvar_RegisterVariable(&v_color_white_r);
649 Cvar_RegisterVariable(&v_color_white_g);
650 Cvar_RegisterVariable(&v_color_white_b);
652 Cvar_RegisterVariable(&v_hwgamma);
653 Cvar_RegisterVariable(&v_overbrightbits);
655 Cvar_RegisterVariable(&vid_fullscreen);
656 Cvar_RegisterVariable(&vid_width);
657 Cvar_RegisterVariable(&vid_height);
658 Cvar_RegisterVariable(&vid_bitsperpixel);
659 Cvar_RegisterVariable(&vid_stencil);
660 Cvar_RegisterVariable(&vid_mouse);
661 Cvar_RegisterVariable(&gl_combine);
662 Cvar_RegisterVariable(&in_pitch_min);
663 Cvar_RegisterVariable(&in_pitch_max);
664 Cvar_RegisterVariable(&m_filter);
665 Cmd_AddCommand("force_centerview", Force_CenterView_f);
666 Cmd_AddCommand("vid_restart", VID_Restart_f);
669 int current_vid_fullscreen;
670 int current_vid_width;
671 int current_vid_height;
672 int current_vid_bitsperpixel;
673 int current_vid_stencil;
674 extern int VID_InitMode (int fullscreen, int width, int height, int bpp, int stencil);
675 int VID_Mode(int fullscreen, int width, int height, int bpp, int stencil)
677 Con_Printf("Video: %s %dx%dx%d %s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, stencil ? "with stencil" : "without stencil");
678 if (VID_InitMode(fullscreen, width, height, bpp, stencil))
680 current_vid_fullscreen = fullscreen;
681 current_vid_width = width;
682 current_vid_height = height;
683 current_vid_bitsperpixel = bpp;
684 current_vid_stencil = stencil;
685 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
686 Cvar_SetValueQuick(&vid_width, width);
687 Cvar_SetValueQuick(&vid_height, height);
688 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
689 Cvar_SetValueQuick(&vid_stencil, stencil);
696 static void VID_OpenSystems(void)
703 static void VID_CloseSystems(void)
707 R_Modules_Shutdown();
710 void VID_Restart_f(void)
712 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp %s, to %s %dx%dx%dbpp %s.\n",
713 current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil ? "with stencil" : "without stencil",
714 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer ? "with stencil" : "without stencil");
716 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
718 Con_Printf("Video mode change failed\n");
719 if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil))
720 Sys_Error("Unable to restore to last working video mode\n");
725 int vid_commandlinecheck = true;
728 int i, width, height;
729 if (vid_commandlinecheck)
731 // interpret command-line parameters
732 vid_commandlinecheck = false;
733 if ((i = COM_CheckParm("-window")) != 0)
734 Cvar_SetValueQuick(&vid_fullscreen, false);
735 if ((i = COM_CheckParm("-fullscreen")) != 0)
736 Cvar_SetValueQuick(&vid_fullscreen, true);
739 if ((i = COM_CheckParm("-width")) != 0)
740 width = atoi(com_argv[i+1]);
741 if ((i = COM_CheckParm("-height")) != 0)
742 height = atoi(com_argv[i+1]);
744 width = height * 4 / 3;
746 height = width * 3 / 4;
748 Cvar_SetValueQuick(&vid_width, width);
750 Cvar_SetValueQuick(&vid_height, height);
751 if ((i = COM_CheckParm("-bpp")) != 0)
752 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
753 if ((i = COM_CheckParm("-nostencil")) != 0)
754 Cvar_SetValueQuick(&vid_stencil, 0);
755 if ((i = COM_CheckParm("-stencil")) != 0)
756 Cvar_SetValueQuick(&vid_stencil, 1);
759 if (vid_stencil.integer && vid_bitsperpixel.integer != 32)
761 Con_Printf("vid_stencil not allowed without vid_bitsperpixel 32, turning off vid_stencil\n");
762 Cvar_SetValueQuick(&vid_stencil, 0);
765 Con_Printf("Starting video system\n");
766 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
768 Con_Printf("Desired video mode fail, trying fallbacks...\n");
769 if (!vid_stencil.integer || !VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, false))
771 if (vid_fullscreen.integer)
773 if (!VID_Mode(true, 640, 480, 16, false))
774 if (!VID_Mode(false, 640, 480, 16, false))
775 Sys_Error("Video modes failed\n");
778 Sys_Error("Windowed video failed\n");