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quakeforge/libs/video/renderer/r_cvar.c
Bill Currie 151cc05882 Add support for vertex colors. 
As I need to control the alpha, they're sent as rgba rather than quake
palette indices. Text works well. All other 2d stuff does not :(.
2011-12-28 09:04:26 +09:00

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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__ ((used)) 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;
quat_t crosshair_color;
static void
crosshaircolor_f (cvar_t *var)
{
byte *color;
color = (byte *) &d_8to24table[bound (0, var->int_val, 255)];
QuatScale (color, 1.0 / 255, crosshair_color);
}
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 < 30 || 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", PACKAGE_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,
crosshaircolor_f, "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", "0", 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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