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quakeforge/libs/video/renderer/r_cvar.c
Ragnvald Maartmann-Moe IV 44c89c1904 Optimize fullbright testing for brushes, assorted other cleanups, test for 
functions built into current GL drivers, as well as the old extensions, and
add incorrectly rendering BGRA support.
Whee!
2004-02-24 20:50:55 +00:00

445 lines
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/*
r_cvar.c
renderer cvar definitions
Copyright (C) 2000 Bill Currie
Ragnvald Maartmann-Moe IV
Author: Bill Currie
Ragnvald Maartmann-Moe IV
Date: 2001/5/17
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((unused)) const char rcsid[] =
"$Id$";
#include "QF/cvar.h"
#include "QF/model.h"
#include "QF/qendian.h"
#include "QF/render.h"
#include "compat.h"
#include "r_cvar.h"
#include "r_dynamic.h"
cvar_t *easter_eggs;
cvar_t *cl_crossx;
cvar_t *cl_crossy;
cvar_t *cl_verstring;
cvar_t *crosshair;
cvar_t *crosshaircolor;
cvar_t *d_mipcap;
cvar_t *d_mipscale;
cvar_t *gl_affinemodels;
cvar_t *gl_clear;
cvar_t *gl_conspin;
cvar_t *gl_constretch;
cvar_t *gl_dlight_polyblend;
cvar_t *gl_dlight_smooth;
cvar_t *gl_driver;
cvar_t *gl_fb_models;
cvar_t *gl_keeptjunctions;
cvar_t *gl_lerp_anim;
cvar_t *gl_lightmap_align;
cvar_t *gl_lightmap_subimage;
cvar_t *gl_nocolors;
cvar_t *gl_overbright;
cvar_t *gl_particle_mip;
cvar_t *gl_particle_size;
cvar_t *gl_picmip;
cvar_t *gl_playermip;
cvar_t *gl_reporttjunctions;
cvar_t *gl_sky_clip;
cvar_t *gl_sky_debug;
cvar_t *gl_sky_multipass;
cvar_t *gl_texsort;
cvar_t *gl_triplebuffer;
cvar_t *r_aliasstats;
cvar_t *r_aliastransadj;
cvar_t *r_aliastransbase;
cvar_t *r_ambient;
cvar_t *r_clearcolor;
cvar_t *r_dlight_lightmap;
cvar_t *r_dlight_max;
cvar_t *r_drawentities;
cvar_t *r_drawexplosions;
cvar_t *r_drawflat;
cvar_t *r_drawviewmodel;
cvar_t *r_dspeeds;
cvar_t *r_dynamic;
cvar_t *r_explosionclip;
cvar_t *r_farclip;
cvar_t *r_firecolor;
cvar_t *r_graphheight;
cvar_t *r_lightmap_components;
cvar_t *r_maxedges;
cvar_t *r_maxsurfs;
cvar_t *r_mirroralpha;
cvar_t *r_nearclip;
cvar_t *r_netgraph;
cvar_t *r_netgraph_alpha;
cvar_t *r_netgraph_box;
cvar_t *r_norefresh;
cvar_t *r_novis;
cvar_t *r_numedges;
cvar_t *r_numsurfs;
cvar_t *r_particles;
cvar_t *r_particles_style;
cvar_t *r_particles_max;
cvar_t *r_particles_nearclip;
cvar_t *r_reportedgeout;
cvar_t *r_reportsurfout;
cvar_t *r_shadows;
cvar_t *r_skyname;
cvar_t *r_speeds;
cvar_t *r_timegraph;
cvar_t *r_wateralpha;
cvar_t *r_waterripple;
cvar_t *r_waterwarp;
cvar_t *r_zgraph;
cvar_t *scr_centertime;
cvar_t *scr_fov;
cvar_t *scr_fisheye;
cvar_t *scr_fviews;
cvar_t *scr_ffov;
cvar_t *scr_printspeed;
cvar_t *scr_showpause;
cvar_t *scr_showram;
cvar_t *scr_showturtle;
cvar_t *scr_viewsize;
void (*r_viewsize_callback)(cvar_t *var);
int r_viewsize;
float cl_wateralpha;
static void
r_particles_f (cvar_t *var)
{
R_MaxParticlesCheck (var, r_particles_max);
}
static void
r_particles_max_f (cvar_t *var)
{
R_MaxParticlesCheck (r_particles, var);
}
static void
r_lightmap_components_f (cvar_t *var)
{
switch (var->int_val) {
case 1:
mod_lightmap_bytes = 1;
break;
case 3:
case 4:
default:
mod_lightmap_bytes = 3;
break;
}
}
static void
r_farclip_f (cvar_t *var)
{
Cvar_SetValue (r_farclip, bound (8.0, var->value, Q_MAXFLOAT));
if (r_particles_nearclip && r_nearclip)
Cvar_SetValue (r_particles_nearclip,
bound (r_nearclip->value, r_particles_nearclip->value,
r_farclip->value));
}
static void
r_nearclip_f (cvar_t *var)
{
Cvar_SetValue (r_nearclip, bound (0.01, var->value, 4.0));
if (r_particles_nearclip && r_farclip)
Cvar_SetValue (r_particles_nearclip,
bound (r_nearclip->value, r_particles_nearclip->value,
r_farclip->value));
}
static void
r_particles_nearclip_f (cvar_t *var)
{
Cvar_SetValue (r_particles_nearclip, bound (r_nearclip->value, var->value,
r_farclip->value));
}
static void
scr_fisheye_f (cvar_t *var)
{
if (var->int_val)
Cvar_Set (scr_fov, "90");
}
static void
scr_ffov_f (cvar_t *var)
{
if (var->value < 130)
Cvar_Set (scr_fviews, "3");
else if (var->value < 220)
Cvar_Set (scr_fviews, "5");
else
Cvar_Set (scr_fviews, "6");
}
static void
viewsize_f (cvar_t *var)
{
if (var->int_val < 32 || var->int_val > 120) {
Cvar_SetValue (var, bound (30, var->int_val, 120));
} else {
vid.recalc_refdef = true;
r_viewsize = bound (0, var->int_val, 100);
if (r_viewsize_callback)
r_viewsize_callback (var);
}
}
void
R_Init_Cvars (void)
{
easter_eggs = Cvar_Get ("easter_eggs", "0", CVAR_NONE, r_easter_eggs_f,
"Enables easter eggs.");
cl_crossx = Cvar_Get ("cl_crossx", "0", CVAR_ARCHIVE, NULL,
"Sets the position of the crosshair on the X-axis.");
cl_crossy = Cvar_Get ("cl_crossy", "0", CVAR_ARCHIVE, NULL,
"Sets the position of the crosshair on the Y-axis.");
cl_verstring = Cvar_Get ("cl_verstring", PROGRAM " " VERSION, CVAR_NONE,
NULL, "Client version string");
crosshair = Cvar_Get ("crosshair", "0", CVAR_ARCHIVE, NULL, "Crosshair "
"type. 0 off, 1 old white, 2 new with colors");
crosshaircolor = Cvar_Get ("crosshaircolor", "79", CVAR_ARCHIVE, NULL,
"Color of the new crosshair");
d_mipcap = Cvar_Get ("d_mipcap", "0", CVAR_NONE, NULL,
"Detail level. 0 is highest, 3 is lowest.");
d_mipscale = Cvar_Get ("d_mipscale", "1", CVAR_NONE, NULL, "Detail level "
"of objects. 0 is highest, 3 is lowest.");
gl_affinemodels = Cvar_Get ("gl_affinemodels", "0", CVAR_ARCHIVE, NULL,
"Makes texture rendering quality better if "
"set to 1");
gl_clear = Cvar_Get ("gl_clear", "0", CVAR_NONE, NULL, "Set to 1 to make "
"background black. Useful for removing HOM effect");
gl_conspin = Cvar_Get ("gl_conspin", "0", CVAR_ARCHIVE, NULL,
"speed at which the console spins");
gl_constretch = Cvar_Get ("gl_constretch", "0", CVAR_ARCHIVE, NULL,
"toggle console between slide and stretch");
gl_dlight_polyblend = Cvar_Get ("gl_dlight_polyblend", "0", CVAR_ARCHIVE,
NULL, "Set to 1 to use a dynamic light "
"effect faster on GL");
gl_dlight_smooth = Cvar_Get ("gl_dlight_smooth", "1", CVAR_ARCHIVE, NULL,
"Smooth dynamic vertex lighting");
gl_fb_models = Cvar_Get ("gl_fb_models", "1", CVAR_ARCHIVE, NULL,
"Toggles fullbright color support for models");
gl_keeptjunctions = Cvar_Get ("gl_keeptjunctions", "1", CVAR_ARCHIVE, NULL,
"Set to 0 to turn off colinear vertexes "
"upon level load.");
gl_lerp_anim = Cvar_Get ("gl_lerp_anim", "1", CVAR_ARCHIVE, NULL,
"Toggles model animation interpolation");
gl_driver = Cvar_Get ("gl_driver", GL_DRIVER, CVAR_ROM, NULL,
"The OpenGL library to use. (path optional)");
gl_lightmap_align = Cvar_Get ("gl_lightmap_align", "1", CVAR_NONE, NULL,
"Workaround for nvidia slow path. Set to 4 "
"or 16 if you have an nvidia 3d "
"accelerator, set to 1 otherwise.");
gl_lightmap_subimage = Cvar_Get ("gl_lightmap_subimage", "1", CVAR_NONE,
NULL, "Lightmap Update method. Default 2 "
"updates a minimum 'dirty rectangle' "
"around the area changed. 1 updates "
"every line that changed. 0 updates the "
"entire lightmap.");
gl_nocolors = Cvar_Get ("gl_nocolors", "0", CVAR_NONE, NULL,
"Set to 1, turns off all player colors");
gl_overbright = Cvar_Get ("gl_overbright", "1", CVAR_NONE,
gl_overbright_f, "Darken lightmaps so that "
"dynamic lights can be overbright. 1 = 0.75 "
"brightness, 2 = 0.5 brightness.");
gl_particle_mip = Cvar_Get ("gl_particle_mip", "0", CVAR_NONE, NULL,
"Toggles particle texture mipmapping.");
gl_particle_size = Cvar_Get ("gl_particle_size", "5", CVAR_NONE, NULL,
"Vertical and horizontal size of particle "
"textures as a power of 2. Default is 5 "
"(32 texel square).");
gl_picmip = Cvar_Get ("gl_picmip", "0", CVAR_NONE, NULL, "Dimensions of "
"textures. 0 is normal, 1 is half, 2 is 1/4");
gl_playermip = Cvar_Get ("gl_playermip", "0", CVAR_NONE, NULL,
"Detail of player skins. 0 best, 4 worst.");
gl_reporttjunctions = Cvar_Get ("gl_reporttjunctions", "0", CVAR_NONE,
NULL, "None");
gl_sky_clip = Cvar_Get ("gl_sky_clip", "2", CVAR_ARCHIVE, NULL,
"controls amount of sky overdraw");
gl_sky_debug = Cvar_Get ("gl_sky_debug", "0", CVAR_NONE, NULL,
"debugging `info' for sky clipping");
gl_sky_divide = Cvar_Get ("gl_sky_divide", "1", CVAR_ARCHIVE, NULL,
"subdivide sky polys");
gl_sky_multipass = Cvar_Get ("gl_sky_multipass", "1", CVAR_ARCHIVE, NULL,
"controls whether the skydome is single or "
"double pass");
gl_texsort = Cvar_Get ("gl_texsort", "1", CVAR_NONE, NULL, "None");
gl_triplebuffer = Cvar_Get ("gl_triplebuffer", "1", CVAR_ARCHIVE, NULL,
"Set to 1 by default. Fixes status bar "
"flicker on some hardware");
r_aliasstats = Cvar_Get ("r_polymodelstats", "0", CVAR_NONE, NULL,
"Toggles the displays of number of polygon "
"models current being viewed");
r_aliastransadj = Cvar_Get ("r_aliastransadj", "100", CVAR_NONE, NULL,
"Determines how much of an alias model is "
"clipped away and how much is viewable.");
r_aliastransbase = Cvar_Get ("r_aliastransbase", "200", CVAR_NONE, NULL,
"Determines how much of an alias model is "
"clipped away and how much is viewable");
r_ambient = Cvar_Get ("r_ambient", "0", CVAR_NONE, NULL,
"Determines the ambient lighting for a level");
r_clearcolor = Cvar_Get ("r_clearcolor", "2", CVAR_NONE, NULL,
"This sets the color for areas outside of the "
"current map");
r_dlight_lightmap = Cvar_Get ("r_dlight_lightmap", "1", CVAR_ARCHIVE,
NULL, "Set to 1 for high quality dynamic "
"lighting.");
r_dlight_max = Cvar_Get ("r_dlight_max", "32", CVAR_ARCHIVE,
R_MaxDlightsCheck, "Number of dynamic lights.");
r_drawentities = Cvar_Get ("r_drawentities", "1", CVAR_NONE, NULL,
"Toggles drawing of entities (almost "
"everything but the world)");
r_drawexplosions = Cvar_Get ("r_drawexplosions", "1", CVAR_ARCHIVE, NULL,
"Draw explosions.");
r_drawflat = Cvar_Get ("r_drawflat", "0", CVAR_NONE, NULL,
"Toggles the drawing of textures");
r_drawviewmodel = Cvar_Get ("r_drawviewmodel", "1", CVAR_ARCHIVE, NULL,
"Toggles view model drawing (your weapons)");
r_dspeeds = Cvar_Get ("r_dspeeds", "0", CVAR_NONE, NULL,
"Toggles the display of drawing speed information");
r_dynamic = Cvar_Get ("r_dynamic", "1", CVAR_NONE, NULL,
"Set to 0 to disable lightmap changes");
r_explosionclip = Cvar_Get ("r_explosionclip", "0", CVAR_ARCHIVE, NULL,
"Clip explosions.");
r_farclip = Cvar_Get ("r_farclip", "4096", CVAR_ARCHIVE, r_farclip_f,
"Distance of the far clipping plane from the "
"player.");
r_firecolor = Cvar_Get ("r_firecolor", "0.9 0.7 0.0", CVAR_ARCHIVE, NULL,
"color of rocket and lava ball fires");
r_graphheight = Cvar_Get ("r_graphheight", "32", CVAR_NONE, NULL,
"Set the number of lines displayed in the "
"various graphs");
r_lightmap_components = Cvar_Get ("r_lightmap_components", "3", CVAR_ROM,
r_lightmap_components_f,
"Lightmap texture components. 1 "
"is greyscale, 3 is RGB, 4 is RGBA.");
r_maxedges = Cvar_Get ("r_maxedges", "0", CVAR_NONE, NULL,
"Sets the maximum number of edges");
r_maxsurfs = Cvar_Get ("r_maxsurfs", "0", CVAR_NONE, NULL,
"Sets the maximum number of surfaces");
r_mirroralpha = Cvar_Get ("r_mirroralpha", "1", CVAR_NONE, NULL, "None");
r_nearclip = Cvar_Get ("r_nearclip", "4", CVAR_ARCHIVE, r_nearclip_f,
"Distance of the near clipping plane from the "
"player.");
r_netgraph = Cvar_Get ("r_netgraph", "0", CVAR_NONE, NULL,
"Toggle the display of a graph showing network "
"performance");
r_netgraph_alpha = Cvar_Get ("r_netgraph_alpha", "0.5", CVAR_ARCHIVE, NULL,
"Net graph translucency");
r_netgraph_box = Cvar_Get ("r_netgraph_box", "1", CVAR_ARCHIVE, NULL,
"Draw box around net graph");
r_norefresh = Cvar_Get ("r_norefresh", "0", CVAR_NONE, NULL,
"Set to 1 to disable display refresh");
r_novis = Cvar_Get ("r_novis", "0", CVAR_NONE, NULL, "Set to 1 to enable "
"runtime visibility checking (SLOW)");
r_numedges = Cvar_Get ("r_numedges", "0", CVAR_NONE, NULL,
"Toggles the displaying of number of edges "
"currently being viewed");
r_numsurfs = Cvar_Get ("r_numsurfs", "0", CVAR_NONE, NULL,
"Toggles the displaying of number of surfaces "
"currently being viewed");
r_particles = Cvar_Get ("r_particles", "1", CVAR_ARCHIVE, r_particles_f,
"Toggles drawing of particles.");
r_particles_max = Cvar_Get ("r_particles_max", "2048", CVAR_ARCHIVE,
r_particles_max_f, "Maximum amount of "
"particles to display. No maximum, minimum "
"is 0.");
r_particles_nearclip = Cvar_Get ("r_particles_nearclip", "32",
CVAR_ARCHIVE, r_particles_nearclip_f,
"Distance of the particle near clipping "
"plane from the player.");
r_particles_style = Cvar_Get ("r_particles_style", "1", CVAR_ARCHIVE,
r_particles_style_f, "Sets particle style. "
"0 for Id, 1 for QF.");
r_reportedgeout = Cvar_Get ("r_reportedgeout", "0", CVAR_NONE, NULL,
"Toggle the display of how many edges were "
"not displayed");
r_reportsurfout = Cvar_Get ("r_reportsurfout", "0", CVAR_NONE, NULL,
"Toggle the display of how many surfaces "
"were not displayed");
r_shadows = Cvar_Get ("r_shadows", "0", CVAR_ARCHIVE, NULL,
"Set to 1 to enable shadows for entities");
r_skyname = Cvar_Get ("r_skyname", "none", CVAR_NONE, NULL,
"name of the current skybox");
r_speeds = Cvar_Get ("r_speeds", "0", CVAR_NONE, NULL, "Display drawing "
"time and statistics of what is being viewed");
r_timegraph = Cvar_Get ("r_timegraph", "0", CVAR_NONE, NULL,
"Toggle the display of a performance graph");
r_wateralpha = Cvar_Get ("r_wateralpha", "1", CVAR_ARCHIVE, NULL,
"Determine the opacity of liquids. 1 = opaque, "
"0 = transparent, otherwise translucent.");
r_waterripple = Cvar_Get ("r_waterripple", "0", CVAR_NONE, NULL,
"Set to make liquids ripple, try setting to 5");
r_waterwarp = Cvar_Get ("r_waterwarp", "1", CVAR_NONE, NULL,
"Toggles whether surfaces are warped in liquid.");
r_zgraph = Cvar_Get ("r_zgraph", "0", CVAR_NONE, NULL,
"Toggle the graph that reports the changes of "
"z-axis position");
scr_centertime = Cvar_Get ("scr_centertime", "2", CVAR_NONE, NULL, "How "
"long in seconds screen hints are displayed");
scr_fov = Cvar_Get ("fov", "90", CVAR_NONE, NULL, "Your field of view in "
"degrees. Smaller than 90 zooms in. Don't touch in "
"fisheye mode, use ffov instead.");
scr_fisheye = Cvar_Get ("fisheye", "0", CVAR_NONE, scr_fisheye_f,
"Toggles fisheye mode.");
scr_fviews = Cvar_Get ("fviews", "6", CVAR_NONE, NULL, "The number of "
"fisheye views.");
scr_ffov = Cvar_Get ("ffov", "180", CVAR_NONE, scr_ffov_f, "Your field of "
"view in degrees in fisheye mode.");
scr_printspeed = Cvar_Get ("scr_printspeed", "8", CVAR_NONE, NULL,
"How fast the text is displayed at the end of "
"the single player episodes");
scr_showpause = Cvar_Get ("showpause", "1", CVAR_NONE, NULL,
"Toggles display of pause graphic");
scr_showram = Cvar_Get ("showram", "1", CVAR_NONE, NULL,
"Show RAM icon if game is running low on memory");
scr_showturtle = Cvar_Get ("showturtle", "0", CVAR_NONE, NULL,
"Show a turtle icon if your fps is below 10");
scr_viewsize = Cvar_Get ("viewsize", "100", CVAR_ARCHIVE, viewsize_f,
"Set the screen size 30 minimum, 120 maximum");
}
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