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 *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
99 void (GLAPIENTRY *qglActiveTexture) (GLenum);
100 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
102 // GL_EXT_compiled_vertex_array
103 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
104 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
106 //GL_NV_vertex_array_range
107 GLvoid *(GLAPIENTRY *qglAllocateMemoryNV)(GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority);
108 GLvoid (GLAPIENTRY *qglFreeMemoryNV)(GLvoid *pointer);
109 GLvoid (GLAPIENTRY *qglVertexArrayRangeNV)(GLsizei length, GLvoid *pointer);
110 GLvoid (GLAPIENTRY *qglFlushVertexArrayRangeNV)(GLvoid);
112 // general GL functions
114 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
116 void (GLAPIENTRY *qglClear)(GLbitfield mask);
118 //void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
119 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
120 void (GLAPIENTRY *qglCullFace)(GLenum mode);
122 //void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
123 //void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
124 void (GLAPIENTRY *qglEnable)(GLenum cap);
125 void (GLAPIENTRY *qglDisable)(GLenum cap);
126 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
128 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
129 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
131 //void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
132 //void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
133 //void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
134 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
136 GLenum (GLAPIENTRY *qglGetError)(void);
137 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
138 void (GLAPIENTRY *qglFinish)(void);
139 void (GLAPIENTRY *qglFlush)(void);
141 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
142 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
143 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
144 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
145 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
147 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
148 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
149 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
150 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
151 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
152 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
153 void (GLAPIENTRY *qglArrayElement)(GLint i);
155 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
156 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
157 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
158 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
159 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
160 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
161 void (GLAPIENTRY *qglBegin)(GLenum mode);
162 void (GLAPIENTRY *qglEnd)(void);
164 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
165 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
166 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
167 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
168 //void (GLAPIENTRY *qglPushMatrix)(void);
169 //void (GLAPIENTRY *qglPopMatrix)(void);
170 void (GLAPIENTRY *qglLoadIdentity)(void);
171 //void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
172 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
173 //void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
174 //void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
175 //void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
176 //void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
177 //void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
178 //void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
179 //void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
180 //void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
182 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
184 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
185 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
186 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
187 void (GLAPIENTRY *qglClearStencil)(GLint s);
189 //void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
190 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
191 //void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
192 //void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
193 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
195 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
196 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
197 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
198 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
199 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
200 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
201 //void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
202 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
204 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
205 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
206 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
207 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
208 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
209 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
210 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
211 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
214 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
216 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
218 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
219 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);
220 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
222 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
224 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
226 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
229 const dllfunction_t *func;
231 Con_DPrintf("checking for %s... ", name);
233 for (func = funcs;func && func->name;func++)
234 *func->funcvariable = NULL;
236 if (disableparm && COM_CheckParm(disableparm))
238 Con_DPrintf("disabled by commandline\n");
242 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)))
244 for (func = funcs;func && func->name != NULL;func++)
246 // functions are cleared before all the extensions are evaluated
247 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
250 Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
254 // delay the return so it prints all missing functions
257 Con_DPrintf("enabled\n");
262 Con_DPrintf("not detected\n");
267 static dllfunction_t opengl110funcs[] =
269 {"glClearColor", (void **) &qglClearColor},
270 {"glClear", (void **) &qglClear},
271 // {"glAlphaFunc", (void **) &qglAlphaFunc},
272 {"glBlendFunc", (void **) &qglBlendFunc},
273 {"glCullFace", (void **) &qglCullFace},
274 // {"glDrawBuffer", (void **) &qglDrawBuffer},
275 // {"glReadBuffer", (void **) &qglReadBuffer},
276 {"glEnable", (void **) &qglEnable},
277 {"glDisable", (void **) &qglDisable},
278 {"glIsEnabled", (void **) &qglIsEnabled},
279 {"glEnableClientState", (void **) &qglEnableClientState},
280 {"glDisableClientState", (void **) &qglDisableClientState},
281 // {"glGetBooleanv", (void **) &qglGetBooleanv},
282 // {"glGetDoublev", (void **) &qglGetDoublev},
283 // {"glGetFloatv", (void **) &qglGetFloatv},
284 {"glGetIntegerv", (void **) &qglGetIntegerv},
285 {"glGetError", (void **) &qglGetError},
286 {"glGetString", (void **) &qglGetString},
287 {"glFinish", (void **) &qglFinish},
288 {"glFlush", (void **) &qglFlush},
289 {"glClearDepth", (void **) &qglClearDepth},
290 {"glDepthFunc", (void **) &qglDepthFunc},
291 {"glDepthMask", (void **) &qglDepthMask},
292 {"glDepthRange", (void **) &qglDepthRange},
293 {"glDrawElements", (void **) &qglDrawElements},
294 {"glColorMask", (void **) &qglColorMask},
295 {"glVertexPointer", (void **) &qglVertexPointer},
296 {"glNormalPointer", (void **) &qglNormalPointer},
297 {"glColorPointer", (void **) &qglColorPointer},
298 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
299 {"glArrayElement", (void **) &qglArrayElement},
300 {"glColor4f", (void **) &qglColor4f},
301 {"glTexCoord2f", (void **) &qglTexCoord2f},
302 {"glTexCoord3f", (void **) &qglTexCoord3f},
303 {"glVertex2f", (void **) &qglVertex2f},
304 {"glVertex3f", (void **) &qglVertex3f},
305 {"glBegin", (void **) &qglBegin},
306 {"glEnd", (void **) &qglEnd},
307 {"glMatrixMode", (void **) &qglMatrixMode},
308 {"glOrtho", (void **) &qglOrtho},
309 {"glFrustum", (void **) &qglFrustum},
310 {"glViewport", (void **) &qglViewport},
311 // {"glPushMatrix", (void **) &qglPushMatrix},
312 // {"glPopMatrix", (void **) &qglPopMatrix},
313 {"glLoadIdentity", (void **) &qglLoadIdentity},
314 // {"glLoadMatrixd", (void **) &qglLoadMatrixd},
315 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
316 // {"glMultMatrixd", (void **) &qglMultMatrixd},
317 // {"glMultMatrixf", (void **) &qglMultMatrixf},
318 // {"glRotated", (void **) &qglRotated},
319 // {"glRotatef", (void **) &qglRotatef},
320 // {"glScaled", (void **) &qglScaled},
321 // {"glScalef", (void **) &qglScalef},
322 // {"glTranslated", (void **) &qglTranslated},
323 // {"glTranslatef", (void **) &qglTranslatef},
324 {"glReadPixels", (void **) &qglReadPixels},
325 {"glStencilFunc", (void **) &qglStencilFunc},
326 {"glStencilMask", (void **) &qglStencilMask},
327 {"glStencilOp", (void **) &qglStencilOp},
328 {"glClearStencil", (void **) &qglClearStencil},
329 // {"glTexEnvf", (void **) &qglTexEnvf},
330 {"glTexEnvi", (void **) &qglTexEnvi},
331 // {"glTexParameterf", (void **) &qglTexParameterf},
332 // {"glTexParameterfv", (void **) &qglTexParameterfv},
333 {"glTexParameteri", (void **) &qglTexParameteri},
334 // {"glPixelStoref", (void **) &qglPixelStoref},
335 {"glPixelStorei", (void **) &qglPixelStorei},
336 {"glGenTextures", (void **) &qglGenTextures},
337 {"glDeleteTextures", (void **) &qglDeleteTextures},
338 {"glBindTexture", (void **) &qglBindTexture},
339 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
340 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
341 {"glIsTexture", (void **) &qglIsTexture},
342 {"glTexImage1D", (void **) &qglTexImage1D},
343 {"glTexImage2D", (void **) &qglTexImage2D},
344 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
345 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
346 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
347 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
348 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
349 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
350 {"glScissor", (void **) &qglScissor},
351 {"glPolygonOffset", (void **) &qglPolygonOffset},
355 static dllfunction_t drawrangeelementsfuncs[] =
357 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
361 static dllfunction_t drawrangeelementsextfuncs[] =
363 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
367 static dllfunction_t multitexturefuncs[] =
369 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
370 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
371 {"glActiveTextureARB", (void **) &qglActiveTexture},
372 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
376 static dllfunction_t compiledvertexarrayfuncs[] =
378 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
379 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
383 static dllfunction_t texture3dextfuncs[] =
385 {"glTexImage3DEXT", (void **) &qglTexImage3D},
386 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
387 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
391 static dllfunction_t glxvarfuncs[] =
393 {"glXAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
394 {"glXFreeMemoryNV", (void **) &qglFreeMemoryNV},
395 {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
396 {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
400 static dllfunction_t wglvarfuncs[] =
402 {"wglAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
403 {"wglFreeMemoryNV", (void **) &qglFreeMemoryNV},
404 {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
405 {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
410 void VID_CheckExtensions(void)
412 gl_stencil = vid_stencil.integer;
413 gl_combine_extension = false;
415 gl_supportslockarrays = false;
417 gl_support_clamptoedge = false;
418 gl_support_var = false;
419 gl_support_var2 = false;
421 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
422 Sys_Error("OpenGL 1.1.0 functions not found\n");
424 Con_DPrintf ("GL_VENDOR: %s\n", gl_vendor);
425 Con_DPrintf ("GL_RENDERER: %s\n", gl_renderer);
426 Con_DPrintf ("GL_VERSION: %s\n", gl_version);
427 Con_DPrintf ("GL_EXTENSIONS: %s\n", gl_extensions);
428 Con_DPrintf ("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
430 Con_DPrintf("Checking OpenGL extensions...\n");
432 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
433 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
435 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
437 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
438 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
439 if (gl_combine_extension)
440 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
443 gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
444 gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
445 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
446 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
448 if (!strcmp(gl_platform, "GLX"))
449 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", glxvarfuncs, "-novar", false);
450 else if (!strcmp(gl_platform, "WGL"))
451 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", wglvarfuncs, "-novar", false);
453 gl_support_var2 = GL_CheckExtension("GL_NV_vertex_array_range2", NULL, "-novar2", false);
455 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
456 if (qglDrawRangeElements == NULL)
457 qglDrawRangeElements = qglDrawRangeElementsEXT;
460 int vid_vertexarrays_are_var = false;
461 void *VID_AllocVertexArrays(mempool_t *pool, int size, int fast, float readfrequency, float writefrequency, float priority)
464 vid_vertexarrays_are_var = false;
465 if (fast && qglAllocateMemoryNV)
468 m = qglAllocateMemoryNV(size, readfrequency, writefrequency, priority);
472 vid_vertexarrays_are_var = true;
476 return Mem_Alloc(pool, size);
479 void VID_FreeVertexArrays(void *pointer)
481 if (vid_vertexarrays_are_var)
484 qglFreeMemoryNV(pointer);
489 vid_vertexarrays_are_var = false;
492 void Force_CenterView_f (void)
494 cl.viewangles[PITCH] = 0;
497 void IN_PreMove(void)
501 void CL_AdjustAngles(void);
502 void IN_PostMove(void)
504 // clamp after the move as well to prevent messed up rendering angles
508 void IN_Mouse(usercmd_t *cmd, float mx, float my)
510 int mouselook = (in_mlook.state & 1) || freelook.integer;
511 float mouse_x, mouse_y;
512 static float old_mouse_x = 0, old_mouse_y = 0;
514 if (m_filter.integer)
516 mouse_x = (mx + old_mouse_x) * 0.5;
517 mouse_y = (my + old_mouse_y) * 0.5;
528 // LordHavoc: viewzoom affects mouse sensitivity for sniping
529 mouse_x *= sensitivity.value * cl.viewzoom;
530 mouse_y *= sensitivity.value * cl.viewzoom;
532 // Add mouse X/Y movement to cmd
533 if ((in_strafe.state & 1) || (lookstrafe.integer && mouselook))
534 cmd->sidemove += m_side.value * mouse_x;
536 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
541 if (mouselook && !(in_strafe.state & 1))
542 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
545 if ((in_strafe.state & 1) && noclip_anglehack)
546 cmd->upmove -= m_forward.value * mouse_y;
548 cmd->forwardmove -= m_forward.value * mouse_y;
552 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
553 static int cacheoverbrightbits = -1, cachecolorenable, cachehwgamma;
554 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
555 void VID_UpdateGamma(qboolean force)
560 // LordHavoc: don't mess with gamma tables if running dedicated
561 if (cls.state == ca_dedicated)
565 && vid_usinghwgamma == (vid_allowhwgamma && v_hwgamma.integer)
566 && v_overbrightbits.integer == cacheoverbrightbits
567 && v_gamma.value == cachegamma
568 && v_contrast.value == cachecontrast
569 && v_brightness.value == cachebrightness
570 && cachecolorenable == v_color_enable.integer
571 && cacheblack[0] == v_color_black_r.value
572 && cacheblack[1] == v_color_black_g.value
573 && cacheblack[2] == v_color_black_b.value
574 && cachegrey[0] == v_color_grey_r.value
575 && cachegrey[1] == v_color_grey_g.value
576 && cachegrey[2] == v_color_grey_b.value
577 && cachewhite[0] == v_color_white_r.value
578 && cachewhite[1] == v_color_white_g.value
579 && cachewhite[2] == v_color_white_b.value)
582 if (vid_allowhwgamma && v_hwgamma.integer)
584 if (!vid_usinghwgamma)
586 vid_usinghwgamma = true;
587 vid_hardwaregammasupported = VID_GetGamma(vid_systemgammaramps);
590 BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
591 BOUNDCVAR(v_contrast, 1, 5);cachecontrast = v_contrast.value;
592 BOUNDCVAR(v_brightness, 0, 0.8);cachebrightness = v_brightness.value;
593 BOUNDCVAR(v_color_black_r, 0, 0.8);cacheblack[0] = v_color_black_r.value;
594 BOUNDCVAR(v_color_black_g, 0, 0.8);cacheblack[1] = v_color_black_g.value;
595 BOUNDCVAR(v_color_black_b, 0, 0.8);cacheblack[2] = v_color_black_b.value;
596 BOUNDCVAR(v_color_grey_r, 0, 0.95);cachegrey[0] = v_color_grey_r.value;
597 BOUNDCVAR(v_color_grey_g, 0, 0.95);cachegrey[1] = v_color_grey_g.value;
598 BOUNDCVAR(v_color_grey_b, 0, 0.95);cachegrey[2] = v_color_grey_b.value;
599 BOUNDCVAR(v_color_white_r, 1, 5);cachewhite[0] = v_color_white_r.value;
600 BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
601 BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
602 cachecolorenable = v_color_enable.integer;
603 cacheoverbrightbits = v_overbrightbits.integer;
604 cachehwgamma = v_hwgamma.integer;
606 if (cachecolorenable)
608 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps);
609 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + 256);
610 BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + 512);
614 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps);
615 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 256);
616 BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 512);
619 vid_hardwaregammasupported = VID_SetGamma(vid_gammaramps);
623 if (vid_usinghwgamma)
625 vid_usinghwgamma = false;
626 vid_hardwaregammasupported = VID_SetGamma(vid_systemgammaramps);
631 void VID_RestoreSystemGamma(void)
633 if (vid_usinghwgamma)
635 vid_usinghwgamma = false;
636 VID_SetGamma(vid_systemgammaramps);
640 void VID_Shared_Init(void)
642 Cvar_RegisterVariable(&v_gamma);
643 Cvar_RegisterVariable(&v_brightness);
644 Cvar_RegisterVariable(&v_contrast);
646 Cvar_RegisterVariable(&v_color_enable);
647 Cvar_RegisterVariable(&v_color_black_r);
648 Cvar_RegisterVariable(&v_color_black_g);
649 Cvar_RegisterVariable(&v_color_black_b);
650 Cvar_RegisterVariable(&v_color_grey_r);
651 Cvar_RegisterVariable(&v_color_grey_g);
652 Cvar_RegisterVariable(&v_color_grey_b);
653 Cvar_RegisterVariable(&v_color_white_r);
654 Cvar_RegisterVariable(&v_color_white_g);
655 Cvar_RegisterVariable(&v_color_white_b);
657 Cvar_RegisterVariable(&v_hwgamma);
658 Cvar_RegisterVariable(&v_overbrightbits);
660 Cvar_RegisterVariable(&vid_fullscreen);
661 Cvar_RegisterVariable(&vid_width);
662 Cvar_RegisterVariable(&vid_height);
663 Cvar_RegisterVariable(&vid_bitsperpixel);
664 Cvar_RegisterVariable(&vid_stencil);
665 Cvar_RegisterVariable(&vid_mouse);
666 Cvar_RegisterVariable(&gl_combine);
667 Cvar_RegisterVariable(&in_pitch_min);
668 Cvar_RegisterVariable(&in_pitch_max);
669 Cvar_RegisterVariable(&m_filter);
670 Cmd_AddCommand("force_centerview", Force_CenterView_f);
671 Cmd_AddCommand("vid_restart", VID_Restart_f);
672 if (gamemode == GAME_GOODVSBAD2)
673 Cvar_Set("gl_combine", "0");
676 int current_vid_fullscreen;
677 int current_vid_width;
678 int current_vid_height;
679 int current_vid_bitsperpixel;
680 int current_vid_stencil;
681 extern int VID_InitMode (int fullscreen, int width, int height, int bpp, int stencil);
682 int VID_Mode(int fullscreen, int width, int height, int bpp, int stencil)
684 Con_Printf("Video: %s %dx%dx%d %s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, stencil ? "with stencil" : "without stencil");
685 if (VID_InitMode(fullscreen, width, height, bpp, stencil))
687 current_vid_fullscreen = fullscreen;
688 current_vid_width = width;
689 current_vid_height = height;
690 current_vid_bitsperpixel = bpp;
691 current_vid_stencil = stencil;
692 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
693 Cvar_SetValueQuick(&vid_width, width);
694 Cvar_SetValueQuick(&vid_height, height);
695 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
696 Cvar_SetValueQuick(&vid_stencil, stencil);
703 static void VID_OpenSystems(void)
710 static void VID_CloseSystems(void)
714 R_Modules_Shutdown();
717 void VID_Restart_f(void)
719 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp %s, to %s %dx%dx%dbpp %s.\n",
720 current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil ? "with stencil" : "without stencil",
721 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer ? "with stencil" : "without stencil");
723 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
725 Con_Printf("Video mode change failed\n");
726 if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil))
727 Sys_Error("Unable to restore to last working video mode\n");
732 int vid_commandlinecheck = true;
735 int i, width, height;
736 if (vid_commandlinecheck)
738 // interpret command-line parameters
739 vid_commandlinecheck = false;
740 if ((i = COM_CheckParm("-window")) != 0)
741 Cvar_SetValueQuick(&vid_fullscreen, false);
742 if ((i = COM_CheckParm("-fullscreen")) != 0)
743 Cvar_SetValueQuick(&vid_fullscreen, true);
746 if ((i = COM_CheckParm("-width")) != 0)
747 width = atoi(com_argv[i+1]);
748 if ((i = COM_CheckParm("-height")) != 0)
749 height = atoi(com_argv[i+1]);
751 width = height * 4 / 3;
753 height = width * 3 / 4;
755 Cvar_SetValueQuick(&vid_width, width);
757 Cvar_SetValueQuick(&vid_height, height);
758 if ((i = COM_CheckParm("-bpp")) != 0)
759 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
760 if ((i = COM_CheckParm("-nostencil")) != 0)
761 Cvar_SetValueQuick(&vid_stencil, 0);
762 if ((i = COM_CheckParm("-stencil")) != 0)
763 Cvar_SetValueQuick(&vid_stencil, 1);
766 if (vid_stencil.integer && vid_bitsperpixel.integer != 32)
768 Con_Printf("vid_stencil not allowed without vid_bitsperpixel 32, turning off vid_stencil\n");
769 Cvar_SetValueQuick(&vid_stencil, 0);
772 Con_DPrintf("Starting video system\n");
773 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
775 Con_Printf("Desired video mode fail, trying fallbacks...\n");
776 if (!vid_stencil.integer || !VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, false))
778 if (vid_fullscreen.integer)
780 if (!VID_Mode(true, 640, 480, 16, false))
781 if (!VID_Mode(false, 640, 480, 16, false))
782 Sys_Error("Video modes failed\n");
785 Sys_Error("Windowed video failed\n");