4 // LordHavoc: these are only set in wgl
5 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
6 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.
8 // LordHavoc: GL_ARB_multitexture support
10 // LordHavoc: GL_ARB_texture_env_combine or GL_EXT_texture_env_combine support
11 int gl_combine_extension = false;
12 // LordHavoc: GL_EXT_compiled_vertex_array support
13 int gl_supportslockarrays = false;
14 // LordHavoc: GLX_SGI_video_sync and WGL_EXT_swap_control
15 int gl_videosyncavailable = false;
17 // LordHavoc: if window is hidden, don't update screen
18 int vid_hidden = false;
19 // LordHavoc: if window is not the active window, don't hog as much CPU time,
20 // let go of the mouse, turn off sound, and restore system gamma ramps...
21 int vid_activewindow = true;
23 cvar_t vid_fullscreen = {0, "vid_fullscreen", "1"};
24 cvar_t vid_width = {0, "vid_width", "640"};
25 cvar_t vid_height = {0, "vid_height", "480"};
26 cvar_t vid_bitsperpixel = {0, "vid_bitsperpixel", "15"};
28 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
29 cvar_t gl_combine = {0, "gl_combine", "1"};
31 cvar_t in_pitch_min = {0, "in_pitch_min", "-90"};
32 cvar_t in_pitch_max = {0, "in_pitch_max", "90"};
34 cvar_t m_filter = {CVAR_SAVE, "m_filter","0"};
36 // brand of graphics chip
37 const char *gl_vendor;
38 // graphics chip model and other information
39 const char *gl_renderer;
40 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
41 const char *gl_version;
42 // extensions list, space separated
43 const char *gl_extensions;
45 const char *gl_platform;
46 // another extensions list, containing platform-specific extensions that are
47 // not in the main list
48 const char *gl_platformextensions;
49 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
52 // GL_ARB_multitexture
53 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
54 void (GLAPIENTRY *qglActiveTexture) (GLenum);
55 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
57 // GL_EXT_compiled_vertex_array
58 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
59 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
62 // general GL functions
64 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
66 void (GLAPIENTRY *qglClear)(GLbitfield mask);
68 //void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
69 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
70 void (GLAPIENTRY *qglCullFace)(GLenum mode);
72 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
73 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
74 void (GLAPIENTRY *qglEnable)(GLenum cap);
75 void (GLAPIENTRY *qglDisable)(GLenum cap);
76 //GLboolean GLAPIENTRY *qglIsEnabled)(GLenum cap);
78 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
79 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
81 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
82 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
83 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
84 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
86 GLenum (GLAPIENTRY *qglGetError)(void);
87 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
88 void (GLAPIENTRY *qglFinish)(void);
89 void (GLAPIENTRY *qglFlush)(void);
91 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
92 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
93 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
94 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
96 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
97 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
98 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
99 //void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
100 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
101 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
102 void (GLAPIENTRY *qglArrayElement)(GLint i);
104 void (GLAPIENTRY *qglColor4ub)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
105 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
106 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
107 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
108 void (GLAPIENTRY *qglBegin)(GLenum mode);
109 void (GLAPIENTRY *qglEnd)(void);
111 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
112 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
113 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
114 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
115 //void (GLAPIENTRY *qglPushMatrix)(void);
116 //void (GLAPIENTRY *qglPopMatrix)(void);
117 void (GLAPIENTRY *qglLoadIdentity)(void);
118 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
119 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
120 //void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
121 //void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
122 //void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
123 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
124 //void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
125 //void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
126 //void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
127 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
129 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
131 //void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
132 //void (GLAPIENTRY *qglStencilMask)(GLuint mask);
133 //void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
134 //void (GLAPIENTRY *qglClearStencil)(GLint s);
136 //void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
137 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
139 //void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
140 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
142 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
143 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
144 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
145 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
146 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
147 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
149 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
151 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
153 int GL_CheckExtension(const char *name, const gl_extensionfunctionlist_t *funcs, const char *disableparm, int silent)
156 const gl_extensionfunctionlist_t *func;
158 Con_Printf("checking for %s... ", name);
160 for (func = funcs;func && func->name;func++)
161 *func->funcvariable = NULL;
163 if (disableparm && COM_CheckParm(disableparm))
165 Con_Printf("disabled by commandline\n");
169 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)))
171 for (func = funcs;func && func->name != NULL;func++)
173 // functions are cleared before all the extensions are evaluated
174 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
177 Con_Printf("missing function \"%s\" - broken driver!\n", func->name);
181 // delay the return so it prints all missing functions
184 Con_Printf("enabled\n");
189 Con_Printf("not detected\n");
194 static gl_extensionfunctionlist_t opengl110funcs[] =
196 {"glClearColor", (void **) &qglClearColor},
197 {"glClear", (void **) &qglClear},
198 // {"glAlphaFunc", (void **) &qglAlphaFunc},
199 {"glBlendFunc", (void **) &qglBlendFunc},
200 {"glCullFace", (void **) &qglCullFace},
201 {"glDrawBuffer", (void **) &qglDrawBuffer},
202 {"glReadBuffer", (void **) &qglReadBuffer},
203 {"glEnable", (void **) &qglEnable},
204 {"glDisable", (void **) &qglDisable},
205 // {"glIsEnabled", (void **) &qglIsEnabled},
206 {"glEnableClientState", (void **) &qglEnableClientState},
207 {"glDisableClientState", (void **) &qglDisableClientState},
208 {"glGetBooleanv", (void **) &qglGetBooleanv},
209 {"glGetDoublev", (void **) &qglGetDoublev},
210 {"glGetFloatv", (void **) &qglGetFloatv},
211 {"glGetIntegerv", (void **) &qglGetIntegerv},
212 {"glGetError", (void **) &qglGetError},
213 {"glGetString", (void **) &qglGetString},
214 {"glFinish", (void **) &qglFinish},
215 {"glFlush", (void **) &qglFlush},
216 {"glClearDepth", (void **) &qglClearDepth},
217 {"glDepthFunc", (void **) &qglDepthFunc},
218 {"glDepthMask", (void **) &qglDepthMask},
219 {"glDepthRange", (void **) &qglDepthRange},
220 {"glDrawElements", (void **) &qglDrawElements},
221 {"glVertexPointer", (void **) &qglVertexPointer},
222 // {"glNormalPointer", (void **) &qglNormalPointer},
223 {"glColorPointer", (void **) &qglColorPointer},
224 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
225 {"glArrayElement", (void **) &qglArrayElement},
226 {"glColor4ub", (void **) &qglColor4ub},
227 {"glTexCoord2f", (void **) &qglTexCoord2f},
228 {"glVertex2f", (void **) &qglVertex2f},
229 {"glVertex3f", (void **) &qglVertex3f},
230 {"glBegin", (void **) &qglBegin},
231 {"glEnd", (void **) &qglEnd},
232 {"glMatrixMode", (void **) &qglMatrixMode},
233 {"glOrtho", (void **) &qglOrtho},
234 {"glFrustum", (void **) &qglFrustum},
235 {"glViewport", (void **) &qglViewport},
236 // {"glPushMatrix", (void **) &qglPushMatrix},
237 // {"glPopMatrix", (void **) &qglPopMatrix},
238 {"glLoadIdentity", (void **) &qglLoadIdentity},
239 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
240 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
241 // {"glMultMatrixd", (void **) &qglMultMatrixd},
242 // {"glMultMatrixf", (void **) &qglMultMatrixf},
243 // {"glRotated", (void **) &qglRotated},
244 {"glRotatef", (void **) &qglRotatef},
245 // {"glScaled", (void **) &qglScaled},
246 // {"glScalef", (void **) &qglScalef},
247 // {"glTranslated", (void **) &qglTranslated},
248 {"glTranslatef", (void **) &qglTranslatef},
249 {"glReadPixels", (void **) &qglReadPixels},
250 // {"glStencilFunc", (void **) &qglStencilFunc},
251 // {"glStencilMask", (void **) &qglStencilMask},
252 // {"glStencilOp", (void **) &qglStencilOp},
253 // {"glClearStencil", (void **) &qglClearStencil},
254 // {"glTexEnvf", (void **) &qglTexEnvf},
255 {"glTexEnvi", (void **) &qglTexEnvi},
256 // {"glTexParameterf", (void **) &qglTexParameterf},
257 {"glTexParameteri", (void **) &qglTexParameteri},
258 {"glBindTexture", (void **) &qglBindTexture},
259 {"glTexImage2D", (void **) &qglTexImage2D},
260 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
261 {"glDeleteTextures", (void **) &qglDeleteTextures},
262 {"glPixelStoref", (void **) &qglPixelStoref},
263 {"glPixelStorei", (void **) &qglPixelStorei},
267 static gl_extensionfunctionlist_t drawrangeelementsfuncs[] =
269 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
273 static gl_extensionfunctionlist_t drawrangeelementsextfuncs[] =
275 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
279 static gl_extensionfunctionlist_t multitexturefuncs[] =
281 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
282 {"glActiveTextureARB", (void **) &qglActiveTexture},
283 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
287 static gl_extensionfunctionlist_t compiledvertexarrayfuncs[] =
289 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
290 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
294 void VID_CheckExtensions(void)
296 gl_combine_extension = false;
297 gl_supportslockarrays = false;
300 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
301 Sys_Error("OpenGL 1.1.0 functions not found\n");
303 Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
304 Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
305 Con_Printf ("GL_VERSION: %s\n", gl_version);
306 Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
307 Con_Printf ("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
309 Con_Printf("Checking OpenGL extensions...\n");
311 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
312 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
314 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
316 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
317 if (gl_textureunits > 1)
318 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
321 Con_Printf("GL_ARB_multitexture with less than 2 units? - BROKEN DRIVER!\n");
322 gl_textureunits = 1; // for sanity sake, make sure it's not 0
326 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
328 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
329 if (qglDrawRangeElements == NULL)
330 qglDrawRangeElements = qglDrawRangeElementsEXT;
333 double VID_CompareMode(int width1, int height1, int bpp1, int width2, int height2, int bpp2)
336 dw = ((width2 - width1) / 2048) * 16;
337 dh = ((height2 - height1) / 1536) * 4;
338 db = (bpp2 - bpp1) / 32;
339 return dw * dw + dh * dh + db * db;
342 void Force_CenterView_f (void)
344 cl.viewangles[PITCH] = 0;
347 void IN_PreMove(void)
351 void CL_AdjustAngles(void);
352 void IN_PostMove(void)
354 // clamp after the move as well to prevent messed up rendering angles
358 void IN_Mouse(usercmd_t *cmd, float mx, float my)
360 int mouselook = (in_mlook.state & 1) || freelook.integer;
361 float mouse_x, mouse_y;
362 static float old_mouse_x = 0, old_mouse_y = 0;
364 if (m_filter.integer)
366 mouse_x = (mx + old_mouse_x) * 0.5;
367 mouse_y = (my + old_mouse_y) * 0.5;
378 // LordHavoc: viewzoom affects mouse sensitivity for sniping
379 mouse_x *= sensitivity.value * cl.viewzoom;
380 mouse_y *= sensitivity.value * cl.viewzoom;
382 // Add mouse X/Y movement to cmd
383 if ((in_strafe.state & 1) || (lookstrafe.integer && mouselook))
384 cmd->sidemove += m_side.value * mouse_x;
386 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
391 if (mouselook && !(in_strafe.state & 1))
392 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
395 if ((in_strafe.state & 1) && noclip_anglehack)
396 cmd->upmove -= m_forward.value * mouse_y;
398 cmd->forwardmove -= m_forward.value * mouse_y;
402 void VID_InitCvars(void)
406 Cvar_RegisterVariable(&vid_fullscreen);
407 Cvar_RegisterVariable(&vid_width);
408 Cvar_RegisterVariable(&vid_height);
409 Cvar_RegisterVariable(&vid_bitsperpixel);
410 Cvar_RegisterVariable(&vid_mouse);
411 Cvar_RegisterVariable(&gl_combine);
412 Cvar_RegisterVariable(&in_pitch_min);
413 Cvar_RegisterVariable(&in_pitch_max);
414 Cvar_RegisterVariable(&m_filter);
415 Cmd_AddCommand("force_centerview", Force_CenterView_f);
417 // interpret command-line parameters
418 if ((i = COM_CheckParm("-window")) != 0)
419 Cvar_SetValueQuick(&vid_fullscreen, false);
420 if ((i = COM_CheckParm("-fullscreen")) != 0)
421 Cvar_SetValueQuick(&vid_fullscreen, true);
422 if ((i = COM_CheckParm("-width")) != 0)
423 Cvar_SetQuick(&vid_width, com_argv[i+1]);
424 if ((i = COM_CheckParm("-height")) != 0)
425 Cvar_SetQuick(&vid_height, com_argv[i+1]);
426 if ((i = COM_CheckParm("-bpp")) != 0)
427 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);