quakeforge/libs/video/renderer/sw/sw_rmisc.c

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/*
r_misc.c
(description)
Copyright (C) 1996-1997 Id Software, Inc.
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
$Id$
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "compat.h"
#include "QF/console.h"
#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/draw.h"
#include "QF/render.h"
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#include "QF/sys.h"
#include "r_local.h"
void
R_CheckVariables (void)
{
}
/*
Show
Debugging use
*/
void
Show (void)
{
vrect_t vr;
vr.x = vr.y = 0;
vr.width = vid.width;
vr.height = vid.height;
vr.pnext = NULL;
VID_Update (&vr);
}
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/*
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_DoubleTime ();
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 = NULL;
VID_Update (&vr);
}
stop = Sys_DoubleTime ();
time = stop - start;
Con_Printf ("%f seconds (%f fps)\n", time, 128 / time);
r_refdef.viewangles[1] = startangle;
}
void
R_LoadSky_f (void)
{
if (Cmd_Argc () != 2) {
Con_Printf ("loadsky <name> : load a skybox\n");
return;
}
R_LoadSkys (Cmd_Argv (1));
}
void
R_PrintTimes (void)
{
float r_time2;
float ms;
r_time2 = Sys_DoubleTime ();
ms = 1000 * (r_time2 - r_time1);
Con_Printf ("%5.1f ms %3i/%3i/%3i poly %3i surf\n",
ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf);
c_surf = 0;
}
void
R_PrintDSpeeds (void)
{
float ms, dp_time, r_time2, rw_time, db_time, se_time, de_time,
dv_time;
r_time2 = Sys_DoubleTime ();
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 ("%3i %4.1fp %3iw %4.1fb %3is %4.1fe %4.1fv\n",
(int) ms, dp_time, (int) rw_time, db_time, (int) se_time,
de_time, dv_time);
}
void
R_PrintAliasStats (void)
{
Con_Printf ("%3i 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;
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// pull the colors halfway to bright brown
for (i = 0; i < 256; i++) {
for (j = 0; j < 3; j++) {
newpalette[i * 3 + j] =
(vid_basepal[i * 3 + j] + basecolor[j]) / 2;
}
}
VID_ShiftPalette (newpalette);
}
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);
}
}
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#ifdef PIC
#undef USE_INTEL_ASM //XXX asm pic hack
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#endif
#ifndef USE_INTEL_ASM
void
TransformVector (vec3_t in, vec3_t out)
{
out[0] = DotProduct (in, vright);
out[1] = DotProduct (in, vup);
out[2] = DotProduct (in, vpn);
}
#endif
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);
}
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;
}
}
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// FIXME: do just once at start
pfrustum_indexes[i] = pindex;
pindex += 6;
}
}
void
R_SetupFrame (void)
{
int edgecount;
vrect_t vrect;
float w, h;
// don't allow cheats in multiplayer
Cvar_SetValue (r_ambient, 0);
Cvar_SetValue (r_drawflat, 0);
if (r_numsurfs->int_val) {
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->int_val) {
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 = max (r_ambient->value, 0);
R_CheckVariables ();
R_AnimateLight ();
r_framecount++;
numbtofpolys = 0;
// debugging
#if 0
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;
#endif
// 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, r_worldentity.model);
r_dowarpold = r_dowarp;
r_dowarp = r_waterwarp->int_val && (r_viewleaf->contents <= CONTENTS_WATER);
if ((r_dowarp != r_dowarpold) || r_viewchanged) {
if (r_dowarp) {
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if ((vid.width <= WARP_WIDTH)
&& (vid.height <= WARP_HEIGHT)) {
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height;
R_ViewChanged (&vrect, r_lineadj, vid.aspect);
} else {
w = vid.width;
h = vid.height;
if (w > WARP_WIDTH) {
h *= (float) WARP_WIDTH / w;
w = WARP_WIDTH;
}
if (h > WARP_HEIGHT) {
h = WARP_HEIGHT;
w *= (float) WARP_HEIGHT / h;
}
vrect.x = 0;
vrect.y = 0;
vrect.width = (int) w;
vrect.height = (int) h;
R_ViewChanged (&vrect,
(int) ((float) r_lineadj *
(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, r_lineadj, vid.aspect);
}
r_viewchanged = false;
}
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// start off with just the four screen edge clip planes
R_TransformFrustum ();
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// 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;
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// 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 ();
}