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 // LordHavoc: GL_ARB_multitexture support
12 int gl_textureunits = 0;
13 // LordHavoc: GL_ARB_texture_env_combine or GL_EXT_texture_env_combine support
14 int gl_combine_extension = false;
15 // LordHavoc: GL_EXT_compiled_vertex_array support
16 int gl_supportslockarrays = false;
17 // LordHavoc: GLX_SGI_video_sync and WGL_EXT_swap_control
18 int gl_videosyncavailable = false;
19 // indicates that stencil is available
20 int gl_stencil = false;
22 // LordHavoc: if window is hidden, don't update screen
23 int vid_hidden = true;
24 // LordHavoc: if window is not the active window, don't hog as much CPU time,
25 // let go of the mouse, turn off sound, and restore system gamma ramps...
26 int vid_activewindow = true;
28 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1"};
29 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640"};
30 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480"};
31 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "16"};
32 cvar_t vid_stencil = {CVAR_SAVE, "vid_stencil", "0"};
34 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
35 cvar_t gl_combine = {0, "gl_combine", "1"};
37 cvar_t in_pitch_min = {0, "in_pitch_min", "-90"};
38 cvar_t in_pitch_max = {0, "in_pitch_max", "90"};
40 cvar_t m_filter = {CVAR_SAVE, "m_filter","0"};
42 // brand of graphics chip
43 const char *gl_vendor;
44 // graphics chip model and other information
45 const char *gl_renderer;
46 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
47 const char *gl_version;
48 // extensions list, space separated
49 const char *gl_extensions;
51 const char *gl_platform;
52 // another extensions list, containing platform-specific extensions that are
53 // not in the main list
54 const char *gl_platformextensions;
55 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
58 // GL_ARB_multitexture
59 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
60 void (GLAPIENTRY *qglActiveTexture) (GLenum);
61 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
63 // GL_EXT_compiled_vertex_array
64 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
65 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
68 // general GL functions
70 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
72 void (GLAPIENTRY *qglClear)(GLbitfield mask);
74 //void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
75 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
76 void (GLAPIENTRY *qglCullFace)(GLenum mode);
78 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
79 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
80 void (GLAPIENTRY *qglEnable)(GLenum cap);
81 void (GLAPIENTRY *qglDisable)(GLenum cap);
82 //GLboolean GLAPIENTRY *qglIsEnabled)(GLenum cap);
84 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
85 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
87 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
88 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
89 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
90 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
92 GLenum (GLAPIENTRY *qglGetError)(void);
93 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
94 void (GLAPIENTRY *qglFinish)(void);
95 void (GLAPIENTRY *qglFlush)(void);
97 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
98 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
99 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
100 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
102 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
103 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
104 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
105 //void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
106 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
107 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
108 void (GLAPIENTRY *qglArrayElement)(GLint i);
110 void (GLAPIENTRY *qglColor4ub)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
111 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
112 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
113 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
114 void (GLAPIENTRY *qglBegin)(GLenum mode);
115 void (GLAPIENTRY *qglEnd)(void);
117 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
118 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
119 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
120 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
121 //void (GLAPIENTRY *qglPushMatrix)(void);
122 //void (GLAPIENTRY *qglPopMatrix)(void);
123 void (GLAPIENTRY *qglLoadIdentity)(void);
124 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
125 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
126 //void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
127 //void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
128 //void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
129 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
130 //void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
131 //void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
132 //void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
133 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
135 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
137 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
138 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
139 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
140 void (GLAPIENTRY *qglClearStencil)(GLint s);
142 //void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
143 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
145 //void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
146 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
148 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
149 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
150 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
151 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
152 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
153 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
155 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
157 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
159 int GL_CheckExtension(const char *name, const gl_extensionfunctionlist_t *funcs, const char *disableparm, int silent)
162 const gl_extensionfunctionlist_t *func;
164 Con_Printf("checking for %s... ", name);
166 for (func = funcs;func && func->name;func++)
167 *func->funcvariable = NULL;
169 if (disableparm && COM_CheckParm(disableparm))
171 Con_Printf("disabled by commandline\n");
175 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)))
177 for (func = funcs;func && func->name != NULL;func++)
179 // functions are cleared before all the extensions are evaluated
180 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
183 Con_Printf("missing function \"%s\" - broken driver!\n", func->name);
187 // delay the return so it prints all missing functions
190 Con_Printf("enabled\n");
195 Con_Printf("not detected\n");
200 static gl_extensionfunctionlist_t opengl110funcs[] =
202 {"glClearColor", (void **) &qglClearColor},
203 {"glClear", (void **) &qglClear},
204 // {"glAlphaFunc", (void **) &qglAlphaFunc},
205 {"glBlendFunc", (void **) &qglBlendFunc},
206 {"glCullFace", (void **) &qglCullFace},
207 {"glDrawBuffer", (void **) &qglDrawBuffer},
208 {"glReadBuffer", (void **) &qglReadBuffer},
209 {"glEnable", (void **) &qglEnable},
210 {"glDisable", (void **) &qglDisable},
211 // {"glIsEnabled", (void **) &qglIsEnabled},
212 {"glEnableClientState", (void **) &qglEnableClientState},
213 {"glDisableClientState", (void **) &qglDisableClientState},
214 {"glGetBooleanv", (void **) &qglGetBooleanv},
215 {"glGetDoublev", (void **) &qglGetDoublev},
216 {"glGetFloatv", (void **) &qglGetFloatv},
217 {"glGetIntegerv", (void **) &qglGetIntegerv},
218 {"glGetError", (void **) &qglGetError},
219 {"glGetString", (void **) &qglGetString},
220 {"glFinish", (void **) &qglFinish},
221 {"glFlush", (void **) &qglFlush},
222 {"glClearDepth", (void **) &qglClearDepth},
223 {"glDepthFunc", (void **) &qglDepthFunc},
224 {"glDepthMask", (void **) &qglDepthMask},
225 {"glDepthRange", (void **) &qglDepthRange},
226 {"glDrawElements", (void **) &qglDrawElements},
227 {"glVertexPointer", (void **) &qglVertexPointer},
228 // {"glNormalPointer", (void **) &qglNormalPointer},
229 {"glColorPointer", (void **) &qglColorPointer},
230 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
231 {"glArrayElement", (void **) &qglArrayElement},
232 {"glColor4ub", (void **) &qglColor4ub},
233 {"glTexCoord2f", (void **) &qglTexCoord2f},
234 {"glVertex2f", (void **) &qglVertex2f},
235 {"glVertex3f", (void **) &qglVertex3f},
236 {"glBegin", (void **) &qglBegin},
237 {"glEnd", (void **) &qglEnd},
238 {"glMatrixMode", (void **) &qglMatrixMode},
239 {"glOrtho", (void **) &qglOrtho},
240 {"glFrustum", (void **) &qglFrustum},
241 {"glViewport", (void **) &qglViewport},
242 // {"glPushMatrix", (void **) &qglPushMatrix},
243 // {"glPopMatrix", (void **) &qglPopMatrix},
244 {"glLoadIdentity", (void **) &qglLoadIdentity},
245 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
246 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
247 // {"glMultMatrixd", (void **) &qglMultMatrixd},
248 // {"glMultMatrixf", (void **) &qglMultMatrixf},
249 // {"glRotated", (void **) &qglRotated},
250 {"glRotatef", (void **) &qglRotatef},
251 // {"glScaled", (void **) &qglScaled},
252 // {"glScalef", (void **) &qglScalef},
253 // {"glTranslated", (void **) &qglTranslated},
254 {"glTranslatef", (void **) &qglTranslatef},
255 {"glReadPixels", (void **) &qglReadPixels},
256 {"glStencilFunc", (void **) &qglStencilFunc},
257 {"glStencilMask", (void **) &qglStencilMask},
258 {"glStencilOp", (void **) &qglStencilOp},
259 {"glClearStencil", (void **) &qglClearStencil},
260 // {"glTexEnvf", (void **) &qglTexEnvf},
261 {"glTexEnvi", (void **) &qglTexEnvi},
262 // {"glTexParameterf", (void **) &qglTexParameterf},
263 {"glTexParameteri", (void **) &qglTexParameteri},
264 {"glBindTexture", (void **) &qglBindTexture},
265 {"glTexImage2D", (void **) &qglTexImage2D},
266 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
267 {"glDeleteTextures", (void **) &qglDeleteTextures},
268 {"glPixelStoref", (void **) &qglPixelStoref},
269 {"glPixelStorei", (void **) &qglPixelStorei},
273 static gl_extensionfunctionlist_t drawrangeelementsfuncs[] =
275 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
279 static gl_extensionfunctionlist_t drawrangeelementsextfuncs[] =
281 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
285 static gl_extensionfunctionlist_t multitexturefuncs[] =
287 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
288 {"glActiveTextureARB", (void **) &qglActiveTexture},
289 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
293 static gl_extensionfunctionlist_t compiledvertexarrayfuncs[] =
295 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
296 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
300 void VID_CheckExtensions(void)
302 gl_combine_extension = false;
303 gl_supportslockarrays = false;
306 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
307 Sys_Error("OpenGL 1.1.0 functions not found\n");
309 Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
310 Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
311 Con_Printf ("GL_VERSION: %s\n", gl_version);
312 Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
313 Con_Printf ("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
315 Con_Printf("Checking OpenGL extensions...\n");
317 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
318 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
320 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
322 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
323 if (gl_textureunits > 1)
324 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
327 Con_Printf("GL_ARB_multitexture with less than 2 units? - BROKEN DRIVER!\n");
328 gl_textureunits = 1; // for sanity sake, make sure it's not 0
332 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
334 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
335 if (qglDrawRangeElements == NULL)
336 qglDrawRangeElements = qglDrawRangeElementsEXT;
339 void Force_CenterView_f (void)
341 cl.viewangles[PITCH] = 0;
344 void IN_PreMove(void)
348 void CL_AdjustAngles(void);
349 void IN_PostMove(void)
351 // clamp after the move as well to prevent messed up rendering angles
355 void IN_Mouse(usercmd_t *cmd, float mx, float my)
357 int mouselook = (in_mlook.state & 1) || freelook.integer;
358 float mouse_x, mouse_y;
359 static float old_mouse_x = 0, old_mouse_y = 0;
361 if (m_filter.integer)
363 mouse_x = (mx + old_mouse_x) * 0.5;
364 mouse_y = (my + old_mouse_y) * 0.5;
375 // LordHavoc: viewzoom affects mouse sensitivity for sniping
376 mouse_x *= sensitivity.value * cl.viewzoom;
377 mouse_y *= sensitivity.value * cl.viewzoom;
379 // Add mouse X/Y movement to cmd
380 if ((in_strafe.state & 1) || (lookstrafe.integer && mouselook))
381 cmd->sidemove += m_side.value * mouse_x;
383 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
388 if (mouselook && !(in_strafe.state & 1))
389 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
392 if ((in_strafe.state & 1) && noclip_anglehack)
393 cmd->upmove -= m_forward.value * mouse_y;
395 cmd->forwardmove -= m_forward.value * mouse_y;
399 void VID_Shared_Init(void)
403 Cvar_RegisterVariable(&vid_fullscreen);
404 Cvar_RegisterVariable(&vid_width);
405 Cvar_RegisterVariable(&vid_height);
406 Cvar_RegisterVariable(&vid_bitsperpixel);
407 Cvar_RegisterVariable(&vid_stencil);
408 Cvar_RegisterVariable(&vid_mouse);
409 Cvar_RegisterVariable(&gl_combine);
410 Cvar_RegisterVariable(&in_pitch_min);
411 Cvar_RegisterVariable(&in_pitch_max);
412 Cvar_RegisterVariable(&m_filter);
413 Cmd_AddCommand("force_centerview", Force_CenterView_f);
414 Cmd_AddCommand("vid_restart", VID_Restart_f);
416 // interpret command-line parameters
417 if ((i = COM_CheckParm("-window")) != 0)
418 Cvar_SetValueQuick(&vid_fullscreen, false);
419 if ((i = COM_CheckParm("-fullscreen")) != 0)
420 Cvar_SetValueQuick(&vid_fullscreen, true);
421 if ((i = COM_CheckParm("-width")) != 0)
422 Cvar_SetQuick(&vid_width, com_argv[i+1]);
423 if ((i = COM_CheckParm("-height")) != 0)
424 Cvar_SetQuick(&vid_height, com_argv[i+1]);
425 if ((i = COM_CheckParm("-bpp")) != 0)
426 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
427 if ((i = COM_CheckParm("-nostencil")) != 0)
428 Cvar_SetValueQuick(&vid_stencil, 0);
429 if ((i = COM_CheckParm("-stencil")) != 0)
430 Cvar_SetValueQuick(&vid_stencil, 1);
433 int current_vid_fullscreen;
434 int current_vid_width;
435 int current_vid_height;
436 int current_vid_bitsperpixel;
437 int current_vid_stencil;
438 extern int VID_InitMode (int fullscreen, int width, int height, int bpp, int stencil);
439 int VID_Mode(int fullscreen, int width, int height, int bpp, int stencil)
441 Con_Printf("Video: %s %dx%dx%d %s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, stencil ? "with stencil" : "without stencil");
442 if (VID_InitMode(fullscreen, width, height, bpp, stencil))
444 current_vid_fullscreen = fullscreen;
445 current_vid_width = width;
446 current_vid_height = height;
447 current_vid_bitsperpixel = bpp;
448 current_vid_stencil = stencil;
449 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
450 Cvar_SetValueQuick(&vid_width, width);
451 Cvar_SetValueQuick(&vid_height, height);
452 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
453 Cvar_SetValueQuick(&vid_stencil, stencil);
460 static void VID_OpenSystems(void)
467 static void VID_CloseSystems(void)
471 R_Modules_Shutdown();
474 void VID_Restart_f(void)
476 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp %s, to %s %dx%dx%dbpp %s.\n",
477 current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil ? "with stencil" : "without stencil",
478 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer ? "with stencil" : "without stencil");
480 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
482 Con_Printf("Video mode change failed\n");
483 if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil))
484 Sys_Error("Unable to restore to last working video mode\n");
491 Con_Printf("Starting video system\n");
492 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
494 Con_Printf("Desired video mode fail, trying fallbacks...\n");
495 if (!vid_stencil.integer || !VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, false))
497 if (vid_fullscreen.integer)
499 if (!VID_Mode(true, 640, 480, 16, false))
500 if (!VID_Mode(false, 640, 480, 16, false))
501 Sys_Error("Video modes failed\n");
504 Sys_Error("Windowed video failed\n");