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;
33 // GL_EXT_texture_filter_anisotropic
34 int gl_support_anisotropy = false;
36 // LordHavoc: if window is hidden, don't update screen
37 int vid_hidden = true;
38 // LordHavoc: if window is not the active window, don't hog as much CPU time,
39 // let go of the mouse, turn off sound, and restore system gamma ramps...
40 int vid_activewindow = true;
41 // LordHavoc: whether to allow use of hwgamma (disabled when window is inactive)
42 int vid_allowhwgamma = false;
44 // we don't know until we try it!
45 int vid_hardwaregammasupported = true;
46 // whether hardware gamma ramps are currently in effect
47 int vid_usinghwgamma = false;
49 unsigned short vid_gammaramps[768];
50 unsigned short vid_systemgammaramps[768];
52 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1"};
53 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640"};
54 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480"};
55 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "16"};
56 cvar_t vid_stencil = {CVAR_SAVE, "vid_stencil", "0"};
58 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
59 cvar_t gl_combine = {CVAR_SAVE, "gl_combine", "1"};
61 cvar_t in_pitch_min = {0, "in_pitch_min", "-70"};
62 cvar_t in_pitch_max = {0, "in_pitch_max", "80"};
64 cvar_t m_filter = {CVAR_SAVE, "m_filter","0"};
66 cvar_t v_gamma = {CVAR_SAVE, "v_gamma", "1"};
67 cvar_t v_contrast = {CVAR_SAVE, "v_contrast", "1"};
68 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0"};
69 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0"};
70 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0"};
71 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0"};
72 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0"};
73 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5"};
74 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5"};
75 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5"};
76 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1"};
77 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1"};
78 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1"};
79 cvar_t v_overbrightbits = {CVAR_SAVE, "v_overbrightbits", "0"};
80 cvar_t v_hwgamma = {CVAR_SAVE, "v_hwgamma", "1"};
82 // brand of graphics chip
83 const char *gl_vendor;
84 // graphics chip model and other information
85 const char *gl_renderer;
86 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
87 const char *gl_version;
88 // extensions list, space separated
89 const char *gl_extensions;
91 const char *gl_platform;
92 // another extensions list, containing platform-specific extensions that are
93 // not in the main list
94 const char *gl_platformextensions;
95 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
98 // GL_ARB_multitexture
99 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
100 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
101 void (GLAPIENTRY *qglActiveTexture) (GLenum);
102 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
104 // GL_EXT_compiled_vertex_array
105 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
106 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
108 //GL_NV_vertex_array_range
109 GLvoid *(GLAPIENTRY *qglAllocateMemoryNV)(GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority);
110 GLvoid (GLAPIENTRY *qglFreeMemoryNV)(GLvoid *pointer);
111 GLvoid (GLAPIENTRY *qglVertexArrayRangeNV)(GLsizei length, GLvoid *pointer);
112 GLvoid (GLAPIENTRY *qglFlushVertexArrayRangeNV)(GLvoid);
114 // general GL functions
116 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
118 void (GLAPIENTRY *qglClear)(GLbitfield mask);
120 //void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
121 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
122 void (GLAPIENTRY *qglCullFace)(GLenum mode);
124 //void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
125 //void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
126 void (GLAPIENTRY *qglEnable)(GLenum cap);
127 void (GLAPIENTRY *qglDisable)(GLenum cap);
128 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
130 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
131 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
133 //void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
134 //void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
135 //void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
136 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
138 GLenum (GLAPIENTRY *qglGetError)(void);
139 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
140 void (GLAPIENTRY *qglFinish)(void);
141 void (GLAPIENTRY *qglFlush)(void);
143 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
144 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
145 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
146 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
147 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
149 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
150 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
151 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
152 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
153 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
154 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
155 void (GLAPIENTRY *qglArrayElement)(GLint i);
157 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
158 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
159 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
160 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
161 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
162 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
163 void (GLAPIENTRY *qglBegin)(GLenum mode);
164 void (GLAPIENTRY *qglEnd)(void);
166 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
167 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
168 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
169 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
170 //void (GLAPIENTRY *qglPushMatrix)(void);
171 //void (GLAPIENTRY *qglPopMatrix)(void);
172 void (GLAPIENTRY *qglLoadIdentity)(void);
173 //void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
174 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
175 //void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
176 //void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
177 //void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
178 //void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
179 //void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
180 //void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
181 //void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
182 //void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
184 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
186 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
187 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
188 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
189 void (GLAPIENTRY *qglClearStencil)(GLint s);
191 //void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
192 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
193 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
194 //void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
195 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
197 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
198 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
199 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
200 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
201 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
202 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
203 //void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
204 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
206 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
207 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
208 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
209 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
210 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
211 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
212 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
213 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
216 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
218 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
220 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
221 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);
222 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
224 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
226 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
228 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
231 const dllfunction_t *func;
233 Con_DPrintf("checking for %s... ", name);
235 for (func = funcs;func && func->name;func++)
236 *func->funcvariable = NULL;
238 if (disableparm && COM_CheckParm(disableparm))
240 Con_DPrintf("disabled by commandline\n");
244 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)))
246 for (func = funcs;func && func->name != NULL;func++)
248 // functions are cleared before all the extensions are evaluated
249 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
252 Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
256 // delay the return so it prints all missing functions
259 Con_DPrintf("enabled\n");
264 Con_DPrintf("not detected\n");
269 static dllfunction_t opengl110funcs[] =
271 {"glClearColor", (void **) &qglClearColor},
272 {"glClear", (void **) &qglClear},
273 // {"glAlphaFunc", (void **) &qglAlphaFunc},
274 {"glBlendFunc", (void **) &qglBlendFunc},
275 {"glCullFace", (void **) &qglCullFace},
276 // {"glDrawBuffer", (void **) &qglDrawBuffer},
277 // {"glReadBuffer", (void **) &qglReadBuffer},
278 {"glEnable", (void **) &qglEnable},
279 {"glDisable", (void **) &qglDisable},
280 {"glIsEnabled", (void **) &qglIsEnabled},
281 {"glEnableClientState", (void **) &qglEnableClientState},
282 {"glDisableClientState", (void **) &qglDisableClientState},
283 // {"glGetBooleanv", (void **) &qglGetBooleanv},
284 // {"glGetDoublev", (void **) &qglGetDoublev},
285 // {"glGetFloatv", (void **) &qglGetFloatv},
286 {"glGetIntegerv", (void **) &qglGetIntegerv},
287 {"glGetError", (void **) &qglGetError},
288 {"glGetString", (void **) &qglGetString},
289 {"glFinish", (void **) &qglFinish},
290 {"glFlush", (void **) &qglFlush},
291 {"glClearDepth", (void **) &qglClearDepth},
292 {"glDepthFunc", (void **) &qglDepthFunc},
293 {"glDepthMask", (void **) &qglDepthMask},
294 {"glDepthRange", (void **) &qglDepthRange},
295 {"glDrawElements", (void **) &qglDrawElements},
296 {"glColorMask", (void **) &qglColorMask},
297 {"glVertexPointer", (void **) &qglVertexPointer},
298 {"glNormalPointer", (void **) &qglNormalPointer},
299 {"glColorPointer", (void **) &qglColorPointer},
300 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
301 {"glArrayElement", (void **) &qglArrayElement},
302 {"glColor4f", (void **) &qglColor4f},
303 {"glTexCoord2f", (void **) &qglTexCoord2f},
304 {"glTexCoord3f", (void **) &qglTexCoord3f},
305 {"glVertex2f", (void **) &qglVertex2f},
306 {"glVertex3f", (void **) &qglVertex3f},
307 {"glBegin", (void **) &qglBegin},
308 {"glEnd", (void **) &qglEnd},
309 {"glMatrixMode", (void **) &qglMatrixMode},
310 {"glOrtho", (void **) &qglOrtho},
311 {"glFrustum", (void **) &qglFrustum},
312 {"glViewport", (void **) &qglViewport},
313 // {"glPushMatrix", (void **) &qglPushMatrix},
314 // {"glPopMatrix", (void **) &qglPopMatrix},
315 {"glLoadIdentity", (void **) &qglLoadIdentity},
316 // {"glLoadMatrixd", (void **) &qglLoadMatrixd},
317 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
318 // {"glMultMatrixd", (void **) &qglMultMatrixd},
319 // {"glMultMatrixf", (void **) &qglMultMatrixf},
320 // {"glRotated", (void **) &qglRotated},
321 // {"glRotatef", (void **) &qglRotatef},
322 // {"glScaled", (void **) &qglScaled},
323 // {"glScalef", (void **) &qglScalef},
324 // {"glTranslated", (void **) &qglTranslated},
325 // {"glTranslatef", (void **) &qglTranslatef},
326 {"glReadPixels", (void **) &qglReadPixels},
327 {"glStencilFunc", (void **) &qglStencilFunc},
328 {"glStencilMask", (void **) &qglStencilMask},
329 {"glStencilOp", (void **) &qglStencilOp},
330 {"glClearStencil", (void **) &qglClearStencil},
331 // {"glTexEnvf", (void **) &qglTexEnvf},
332 {"glTexEnvi", (void **) &qglTexEnvi},
333 {"glTexParameterf", (void **) &qglTexParameterf},
334 // {"glTexParameterfv", (void **) &qglTexParameterfv},
335 {"glTexParameteri", (void **) &qglTexParameteri},
336 // {"glPixelStoref", (void **) &qglPixelStoref},
337 {"glPixelStorei", (void **) &qglPixelStorei},
338 {"glGenTextures", (void **) &qglGenTextures},
339 {"glDeleteTextures", (void **) &qglDeleteTextures},
340 {"glBindTexture", (void **) &qglBindTexture},
341 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
342 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
343 {"glIsTexture", (void **) &qglIsTexture},
344 {"glTexImage1D", (void **) &qglTexImage1D},
345 {"glTexImage2D", (void **) &qglTexImage2D},
346 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
347 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
348 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
349 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
350 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
351 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
352 {"glScissor", (void **) &qglScissor},
353 {"glPolygonOffset", (void **) &qglPolygonOffset},
357 static dllfunction_t drawrangeelementsfuncs[] =
359 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
363 static dllfunction_t drawrangeelementsextfuncs[] =
365 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
369 static dllfunction_t multitexturefuncs[] =
371 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
372 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
373 {"glActiveTextureARB", (void **) &qglActiveTexture},
374 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
378 static dllfunction_t compiledvertexarrayfuncs[] =
380 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
381 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
385 static dllfunction_t texture3dextfuncs[] =
387 {"glTexImage3DEXT", (void **) &qglTexImage3D},
388 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
389 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
393 static dllfunction_t glxvarfuncs[] =
395 {"glXAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
396 {"glXFreeMemoryNV", (void **) &qglFreeMemoryNV},
397 {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
398 {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
402 static dllfunction_t wglvarfuncs[] =
404 {"wglAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
405 {"wglFreeMemoryNV", (void **) &qglFreeMemoryNV},
406 {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
407 {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
412 void VID_CheckExtensions(void)
414 gl_stencil = vid_stencil.integer;
415 gl_combine_extension = false;
417 gl_supportslockarrays = false;
419 gl_support_clamptoedge = false;
420 gl_support_var = false;
421 gl_support_var2 = false;
423 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
424 Sys_Error("OpenGL 1.1.0 functions not found\n");
426 Con_DPrintf ("GL_VENDOR: %s\n", gl_vendor);
427 Con_DPrintf ("GL_RENDERER: %s\n", gl_renderer);
428 Con_DPrintf ("GL_VERSION: %s\n", gl_version);
429 Con_DPrintf ("GL_EXTENSIONS: %s\n", gl_extensions);
430 Con_DPrintf ("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
432 Con_DPrintf("Checking OpenGL extensions...\n");
434 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
435 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
437 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
439 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
440 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
441 if (gl_combine_extension)
442 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
445 gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
446 gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
447 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
448 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
450 if (!strcmp(gl_platform, "GLX"))
451 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", glxvarfuncs, "-novar", false);
452 else if (!strcmp(gl_platform, "WGL"))
453 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", wglvarfuncs, "-novar", false);
455 gl_support_var2 = GL_CheckExtension("GL_NV_vertex_array_range2", NULL, "-novar2", false);
457 gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false);
459 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
460 if (qglDrawRangeElements == NULL)
461 qglDrawRangeElements = qglDrawRangeElementsEXT;
464 int vid_vertexarrays_are_var = false;
465 void *VID_AllocVertexArrays(mempool_t *pool, int size, int fast, float readfrequency, float writefrequency, float priority)
468 vid_vertexarrays_are_var = false;
469 if (fast && qglAllocateMemoryNV)
472 m = qglAllocateMemoryNV(size, readfrequency, writefrequency, priority);
476 vid_vertexarrays_are_var = true;
480 return Mem_Alloc(pool, size);
483 void VID_FreeVertexArrays(void *pointer)
485 if (vid_vertexarrays_are_var)
488 qglFreeMemoryNV(pointer);
493 vid_vertexarrays_are_var = false;
496 void Force_CenterView_f (void)
498 cl.viewangles[PITCH] = 0;
501 void IN_PreMove(void)
505 void CL_AdjustAngles(void);
506 void IN_PostMove(void)
508 // clamp after the move as well to prevent messed up rendering angles
512 void IN_Mouse(usercmd_t *cmd, float mx, float my)
514 int mouselook = (in_mlook.state & 1) || freelook.integer;
515 float mouse_x, mouse_y;
516 static float old_mouse_x = 0, old_mouse_y = 0;
518 if (m_filter.integer)
520 mouse_x = (mx + old_mouse_x) * 0.5;
521 mouse_y = (my + old_mouse_y) * 0.5;
532 // LordHavoc: viewzoom affects mouse sensitivity for sniping
533 mouse_x *= sensitivity.value * cl.viewzoom;
534 mouse_y *= sensitivity.value * cl.viewzoom;
536 // Add mouse X/Y movement to cmd
537 if ((in_strafe.state & 1) || (lookstrafe.integer && mouselook))
538 cmd->sidemove += m_side.value * mouse_x;
540 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
545 if (mouselook && !(in_strafe.state & 1))
546 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
549 if ((in_strafe.state & 1) && noclip_anglehack)
550 cmd->upmove -= m_forward.value * mouse_y;
552 cmd->forwardmove -= m_forward.value * mouse_y;
556 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
557 static int cacheoverbrightbits = -1, cachecolorenable, cachehwgamma;
558 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
559 void VID_UpdateGamma(qboolean force)
564 // LordHavoc: don't mess with gamma tables if running dedicated
565 if (cls.state == ca_dedicated)
569 && vid_usinghwgamma == (vid_allowhwgamma && v_hwgamma.integer)
570 && v_overbrightbits.integer == cacheoverbrightbits
571 && v_gamma.value == cachegamma
572 && v_contrast.value == cachecontrast
573 && v_brightness.value == cachebrightness
574 && cachecolorenable == v_color_enable.integer
575 && cacheblack[0] == v_color_black_r.value
576 && cacheblack[1] == v_color_black_g.value
577 && cacheblack[2] == v_color_black_b.value
578 && cachegrey[0] == v_color_grey_r.value
579 && cachegrey[1] == v_color_grey_g.value
580 && cachegrey[2] == v_color_grey_b.value
581 && cachewhite[0] == v_color_white_r.value
582 && cachewhite[1] == v_color_white_g.value
583 && cachewhite[2] == v_color_white_b.value)
586 if (vid_allowhwgamma && v_hwgamma.integer)
588 if (!vid_usinghwgamma)
590 vid_usinghwgamma = true;
591 vid_hardwaregammasupported = VID_GetGamma(vid_systemgammaramps);
594 BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
595 BOUNDCVAR(v_contrast, 1, 5);cachecontrast = v_contrast.value;
596 BOUNDCVAR(v_brightness, 0, 0.8);cachebrightness = v_brightness.value;
597 BOUNDCVAR(v_color_black_r, 0, 0.8);cacheblack[0] = v_color_black_r.value;
598 BOUNDCVAR(v_color_black_g, 0, 0.8);cacheblack[1] = v_color_black_g.value;
599 BOUNDCVAR(v_color_black_b, 0, 0.8);cacheblack[2] = v_color_black_b.value;
600 BOUNDCVAR(v_color_grey_r, 0, 0.95);cachegrey[0] = v_color_grey_r.value;
601 BOUNDCVAR(v_color_grey_g, 0, 0.95);cachegrey[1] = v_color_grey_g.value;
602 BOUNDCVAR(v_color_grey_b, 0, 0.95);cachegrey[2] = v_color_grey_b.value;
603 BOUNDCVAR(v_color_white_r, 1, 5);cachewhite[0] = v_color_white_r.value;
604 BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
605 BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
606 cachecolorenable = v_color_enable.integer;
607 cacheoverbrightbits = v_overbrightbits.integer;
608 cachehwgamma = v_hwgamma.integer;
610 if (cachecolorenable)
612 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps);
613 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + 256);
614 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + 512);
618 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps);
619 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 256);
620 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 512);
623 vid_hardwaregammasupported = VID_SetGamma(vid_gammaramps);
627 if (vid_usinghwgamma)
629 vid_usinghwgamma = false;
630 vid_hardwaregammasupported = VID_SetGamma(vid_systemgammaramps);
635 void VID_RestoreSystemGamma(void)
637 if (vid_usinghwgamma)
639 vid_usinghwgamma = false;
640 VID_SetGamma(vid_systemgammaramps);
644 void VID_Shared_Init(void)
646 Cvar_RegisterVariable(&v_gamma);
647 Cvar_RegisterVariable(&v_brightness);
648 Cvar_RegisterVariable(&v_contrast);
650 Cvar_RegisterVariable(&v_color_enable);
651 Cvar_RegisterVariable(&v_color_black_r);
652 Cvar_RegisterVariable(&v_color_black_g);
653 Cvar_RegisterVariable(&v_color_black_b);
654 Cvar_RegisterVariable(&v_color_grey_r);
655 Cvar_RegisterVariable(&v_color_grey_g);
656 Cvar_RegisterVariable(&v_color_grey_b);
657 Cvar_RegisterVariable(&v_color_white_r);
658 Cvar_RegisterVariable(&v_color_white_g);
659 Cvar_RegisterVariable(&v_color_white_b);
661 Cvar_RegisterVariable(&v_hwgamma);
662 Cvar_RegisterVariable(&v_overbrightbits);
664 Cvar_RegisterVariable(&vid_fullscreen);
665 Cvar_RegisterVariable(&vid_width);
666 Cvar_RegisterVariable(&vid_height);
667 Cvar_RegisterVariable(&vid_bitsperpixel);
668 Cvar_RegisterVariable(&vid_stencil);
669 Cvar_RegisterVariable(&vid_mouse);
670 Cvar_RegisterVariable(&gl_combine);
671 Cvar_RegisterVariable(&in_pitch_min);
672 Cvar_RegisterVariable(&in_pitch_max);
673 Cvar_RegisterVariable(&m_filter);
674 Cmd_AddCommand("force_centerview", Force_CenterView_f);
675 Cmd_AddCommand("vid_restart", VID_Restart_f);
676 if (gamemode == GAME_GOODVSBAD2)
677 Cvar_Set("gl_combine", "0");
680 int current_vid_fullscreen;
681 int current_vid_width;
682 int current_vid_height;
683 int current_vid_bitsperpixel;
684 int current_vid_stencil;
685 extern int VID_InitMode (int fullscreen, int width, int height, int bpp, int stencil);
686 int VID_Mode(int fullscreen, int width, int height, int bpp, int stencil)
688 Con_Printf("Video: %s %dx%dx%d %s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, stencil ? "with stencil" : "without stencil");
689 if (VID_InitMode(fullscreen, width, height, bpp, stencil))
691 current_vid_fullscreen = fullscreen;
692 current_vid_width = width;
693 current_vid_height = height;
694 current_vid_bitsperpixel = bpp;
695 current_vid_stencil = stencil;
696 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
697 Cvar_SetValueQuick(&vid_width, width);
698 Cvar_SetValueQuick(&vid_height, height);
699 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
700 Cvar_SetValueQuick(&vid_stencil, stencil);
707 static void VID_OpenSystems(void)
714 static void VID_CloseSystems(void)
718 R_Modules_Shutdown();
721 void VID_Restart_f(void)
723 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp %s, to %s %dx%dx%dbpp %s.\n",
724 current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil ? "with stencil" : "without stencil",
725 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer ? "with stencil" : "without stencil");
727 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
729 Con_Printf("Video mode change failed\n");
730 if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil))
731 Sys_Error("Unable to restore to last working video mode\n");
736 int vid_commandlinecheck = true;
739 int i, width, height;
740 if (vid_commandlinecheck)
742 // interpret command-line parameters
743 vid_commandlinecheck = false;
744 if ((i = COM_CheckParm("-window")) != 0)
745 Cvar_SetValueQuick(&vid_fullscreen, false);
746 if ((i = COM_CheckParm("-fullscreen")) != 0)
747 Cvar_SetValueQuick(&vid_fullscreen, true);
750 if ((i = COM_CheckParm("-width")) != 0)
751 width = atoi(com_argv[i+1]);
752 if ((i = COM_CheckParm("-height")) != 0)
753 height = atoi(com_argv[i+1]);
755 width = height * 4 / 3;
757 height = width * 3 / 4;
759 Cvar_SetValueQuick(&vid_width, width);
761 Cvar_SetValueQuick(&vid_height, height);
762 if ((i = COM_CheckParm("-bpp")) != 0)
763 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
764 if ((i = COM_CheckParm("-nostencil")) != 0)
765 Cvar_SetValueQuick(&vid_stencil, 0);
766 if ((i = COM_CheckParm("-stencil")) != 0)
767 Cvar_SetValueQuick(&vid_stencil, 1);
770 if (vid_stencil.integer && vid_bitsperpixel.integer != 32)
772 Con_Printf("vid_stencil not allowed without vid_bitsperpixel 32, turning off vid_stencil\n");
773 Cvar_SetValueQuick(&vid_stencil, 0);
776 Con_DPrintf("Starting video system\n");
777 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
779 Con_Printf("Desired video mode fail, trying fallbacks...\n");
780 if (!vid_stencil.integer || !VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, false))
782 if (vid_fullscreen.integer)
784 if (!VID_Mode(true, 640, 480, 16, false))
785 if (!VID_Mode(false, 640, 480, 16, false))
786 Sys_Error("Video modes failed\n");
789 Sys_Error("Windowed video failed\n");