ref: 245306e314fe636490b9ad7557a5ea234b589ef2
dir: /r_misc.c/
#include <u.h>
#include <libc.h>
#include <stdio.h>
#include "quakedef.h"
/*
===============
R_CheckVariables
===============
*/
void R_CheckVariables (void)
{
static float oldbright;
if (r_fullbright.value != oldbright)
{
oldbright = r_fullbright.value;
D_FlushCaches (); // so all lighting changes
}
}
/*
============
Show
Debugging use
============
*/
void Show (void)
{
vrect_t vr;
vr.x = vr.y = 0;
vr.width = vid.width;
vr.height = vid.height;
vr.pnext = nil;
VID_Update (&vr);
}
/*
====================
R_TimeRefresh_f
For program optimization
====================
*/
void R_TimeRefresh_f (void)
{
int i;
float start, stop, time;
int startangle;
vrect_t vr;
startangle = r_refdef.viewangles[1];
start = Sys_FloatTime ();
for (i=0 ; i<128 ; i++)
{
r_refdef.viewangles[1] = i/128.0*360.0;
VID_LockBuffer ();
R_RenderView ();
VID_UnlockBuffer ();
vr.x = r_refdef.vrect.x;
vr.y = r_refdef.vrect.y;
vr.width = r_refdef.vrect.width;
vr.height = r_refdef.vrect.height;
vr.pnext = nil;
VID_Update (&vr);
}
stop = Sys_FloatTime ();
time = stop-start;
Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
r_refdef.viewangles[1] = startangle;
}
/*
================
R_LineGraph
Only called by R_DisplayTime
================
*/
void R_LineGraph (int x, int y, int h)
{
int i;
byte *dest;
int s;
// FIXME: should be disabled on no-buffer adapters, or should be in the driver
x += r_refdef.vrect.x;
y += r_refdef.vrect.y;
dest = vid.buffer + vid.rowbytes*y + x;
s = r_graphheight.value;
if (h>s)
h = s;
for (i=0 ; i<h ; i++, dest -= vid.rowbytes*2)
{
dest[0] = 0xff;
*(dest-vid.rowbytes) = 0x30;
}
for ( ; i<s ; i++, dest -= vid.rowbytes*2)
{
dest[0] = 0x30;
*(dest-vid.rowbytes) = 0x30;
}
}
/*
==============
R_TimeGraph
Performance monitoring tool
==============
*/
#define MAX_TIMINGS 100
extern float mouse_x, mouse_y;
void R_TimeGraph (void)
{
static int timex;
int a;
float r_time2;
static byte r_timings[MAX_TIMINGS];
int x;
r_time2 = Sys_FloatTime ();
a = (r_time2-r_time1)/0.01;
//a = fabs(mouse_y * 0.05);
//a = (int)((r_refdef.vieworg[2] + 1024)/1)%(int)r_graphheight.value;
//a = fabs(velocity[0])/20;
//a = ((int)fabs(origin[0])/8)%20;
//a = (cl.idealpitch + 30)/5;
r_timings[timex] = a;
a = timex;
if (r_refdef.vrect.width <= MAX_TIMINGS)
x = r_refdef.vrect.width-1;
else
x = r_refdef.vrect.width -
(r_refdef.vrect.width - MAX_TIMINGS)/2;
do
{
R_LineGraph (x, r_refdef.vrect.height-2, r_timings[a]);
if (x==0)
break; // screen too small to hold entire thing
x--;
a--;
if (a == -1)
a = MAX_TIMINGS-1;
} while (a != timex);
timex = (timex+1)%MAX_TIMINGS;
}
/*
=============
R_PrintTimes
=============
*/
void R_PrintTimes (void)
{
float r_time2;
float ms;
r_time2 = Sys_FloatTime ();
ms = 1000* (r_time2 - r_time1);
Con_Printf ("%5.1f ms %3d/%3d/%3d poly %3d surf\n",
ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf);
c_surf = 0;
}
/*
=============
R_PrintDSpeeds
=============
*/
void R_PrintDSpeeds (void)
{
float ms, dp_time, r_time2, rw_time, db_time, se_time, de_time, dv_time;
r_time2 = Sys_FloatTime ();
dp_time = (dp_time2 - dp_time1) * 1000;
rw_time = (rw_time2 - rw_time1) * 1000;
db_time = (db_time2 - db_time1) * 1000;
se_time = (se_time2 - se_time1) * 1000;
de_time = (de_time2 - de_time1) * 1000;
dv_time = (dv_time2 - dv_time1) * 1000;
ms = (r_time2 - r_time1) * 1000;
Con_Printf ("%3d %4.1fp %3dw %4.1fb %3ds %4.1fe %4.1fv\n",
(int)ms, dp_time, (int)rw_time, db_time, (int)se_time, de_time,
dv_time);
}
/*
=============
R_PrintAliasStats
=============
*/
void R_PrintAliasStats (void)
{
Con_Printf ("%3d polygon model drawn\n", r_amodels_drawn);
}
void WarpPalette (void)
{
int i,j;
byte newpalette[768];
int basecolor[3];
basecolor[0] = 130;
basecolor[1] = 80;
basecolor[2] = 50;
// pull the colors halfway to bright brown
for (i=0 ; i<256 ; i++)
{
for (j=0 ; j<3 ; j++)
{
newpalette[i*3+j] = (host_basepal[i*3+j] + basecolor[j])/2;
}
}
VID_ShiftPalette (newpalette);
}
/*
===================
R_TransformFrustum
===================
*/
void R_TransformFrustum (void)
{
int i;
vec3_t v, v2;
for (i=0 ; i<4 ; i++)
{
v[0] = screenedge[i].normal[2];
v[1] = -screenedge[i].normal[0];
v[2] = screenedge[i].normal[1];
v2[0] = v[1]*vright[0] + v[2]*vup[0] + v[0]*vpn[0];
v2[1] = v[1]*vright[1] + v[2]*vup[1] + v[0]*vpn[1];
v2[2] = v[1]*vright[2] + v[2]*vup[2] + v[0]*vpn[2];
VectorCopy (v2, view_clipplanes[i].normal);
view_clipplanes[i].dist = DotProduct (modelorg, v2);
}
}
/*
================
TransformVector
================
*/
void TransformVector (vec3_t in, vec3_t out)
{
out[0] = DotProduct(in,vright);
out[1] = DotProduct(in,vup);
out[2] = DotProduct(in,vpn);
}
/*
================
R_TransformPlane
================
*/
void R_TransformPlane (mplane_t *p, float *normal, float *dist)
{
float d;
d = DotProduct (r_origin, p->normal);
*dist = p->dist - d;
// TODO: when we have rotating entities, this will need to use the view matrix
TransformVector (p->normal, normal);
}
/*
===============
R_SetUpFrustumIndexes
===============
*/
void R_SetUpFrustumIndexes (void)
{
int i, j, *pindex;
pindex = r_frustum_indexes;
for (i=0 ; i<4 ; i++)
{
for (j=0 ; j<3 ; j++)
{
if (view_clipplanes[i].normal[j] < 0)
{
pindex[j] = j;
pindex[j+3] = j+3;
}
else
{
pindex[j] = j+3;
pindex[j+3] = j;
}
}
// FIXME: do just once at start
pfrustum_indexes[i] = pindex;
pindex += 6;
}
}
/*
===============
R_SetupFrame
===============
*/
void R_SetupFrame (void)
{
int edgecount;
vrect_t vrect;
float w, h;
// don't allow cheats in multiplayer
if (cl.maxclients > 1)
{
Cvar_Set ("r_draworder", "0");
Cvar_Set ("r_fullbright", "0");
Cvar_Set ("r_ambient", "0");
Cvar_Set ("r_drawflat", "0");
}
if (r_numsurfs.value)
{
if ((surface_p - surfaces) > r_maxsurfsseen)
r_maxsurfsseen = surface_p - surfaces;
Con_Printf ("Used %d of %d surfs; %d max\n", surface_p - surfaces,
surf_max - surfaces, r_maxsurfsseen);
}
if (r_numedges.value)
{
edgecount = edge_p - r_edges;
if (edgecount > r_maxedgesseen)
r_maxedgesseen = edgecount;
Con_Printf ("Used %d of %d edges; %d max\n", edgecount,
r_numallocatededges, r_maxedgesseen);
}
r_refdef.ambientlight = r_ambient.value;
if (r_refdef.ambientlight < 0)
r_refdef.ambientlight = 0;
if (!sv.active)
r_draworder.value = 0; // don't let cheaters look behind walls
R_CheckVariables ();
R_AnimateLight ();
r_framecount++;
numbtofpolys = 0;
/* debugging
r_refdef.vieworg[0]= 80;
r_refdef.vieworg[1]= 64;
r_refdef.vieworg[2]= 40;
r_refdef.viewangles[0]= 0;
r_refdef.viewangles[1]= 46.763641357;
r_refdef.viewangles[2]= 0;
*/
// build the transformation matrix for the given view angles
VectorCopy (r_refdef.vieworg, modelorg);
VectorCopy (r_refdef.vieworg, r_origin);
AngleVectors (r_refdef.viewangles, vpn, vright, vup);
// current viewleaf
r_oldviewleaf = r_viewleaf;
r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
r_dowarpold = r_dowarp;
r_dowarp = r_waterwarp.value && (r_viewleaf->contents <= CONTENTS_WATER);
if ((r_dowarp != r_dowarpold) || r_viewchanged || lcd_x.value)
{
if (r_dowarp)
{
if ((vid.width <= vid.maxwarpwidth) &&
(vid.height <= vid.maxwarpheight))
{
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height;
R_ViewChanged (&vrect, sb_lines, vid.aspect);
}
else
{
w = vid.width;
h = vid.height;
if (w > vid.maxwarpwidth)
{
h *= (float)vid.maxwarpwidth / w;
w = vid.maxwarpwidth;
}
if (h > vid.maxwarpheight)
{
h = vid.maxwarpheight;
w *= (float)vid.maxwarpheight / h;
}
vrect.x = 0;
vrect.y = 0;
vrect.width = (int)w;
vrect.height = (int)h;
R_ViewChanged (&vrect,
(int)((float)sb_lines * (h/(float)vid.height)),
vid.aspect * (h / w) *
((float)vid.width / (float)vid.height));
}
}
else
{
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height;
R_ViewChanged (&vrect, sb_lines, vid.aspect);
}
r_viewchanged = false;
}
// start off with just the four screen edge clip planes
R_TransformFrustum ();
// save base values
VectorCopy (vpn, base_vpn);
VectorCopy (vright, base_vright);
VectorCopy (vup, base_vup);
VectorCopy (modelorg, base_modelorg);
R_SetSkyFrame ();
R_SetUpFrustumIndexes ();
r_cache_thrash = false;
// clear frame counts
c_faceclip = 0;
d_spanpixcount = 0;
r_polycount = 0;
r_drawnpolycount = 0;
r_wholepolycount = 0;
r_amodels_drawn = 0;
r_outofsurfaces = 0;
r_outofedges = 0;
D_SetupFrame ();
}