mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
a05210d864
Lighting on alias models seems to be borked, and skies are borked in both sw renderers (seems to be nothing to do with this commit, though).
374 lines
7.7 KiB
C
374 lines
7.7 KiB
C
/*
|
|
d_part.c
|
|
|
|
software driver module for drawing particles
|
|
|
|
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
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#define NH_DEFINE
|
|
#include "namehack.h"
|
|
|
|
#include "QF/sys.h"
|
|
|
|
#include "d_local.h"
|
|
#include "r_internal.h"
|
|
#include "vid_internal.h"
|
|
#include "vid_sw.h"
|
|
|
|
|
|
void
|
|
sw32_D_DrawParticle (particle_t *pparticle)
|
|
{
|
|
vec3_t local, transformed;
|
|
float zi;
|
|
short *pz;
|
|
int i, izi, pix, count, u, v;
|
|
|
|
// transform point
|
|
VectorSubtract (pparticle->org, r_origin, local);
|
|
|
|
transformed[0] = DotProduct (local, r_pright);
|
|
transformed[1] = DotProduct (local, r_pup);
|
|
transformed[2] = DotProduct (local, r_ppn);
|
|
|
|
if (transformed[2] < PARTICLE_Z_CLIP)
|
|
return;
|
|
|
|
// project the point
|
|
// FIXME: preadjust sw32_xcenter and sw32_ycenter
|
|
zi = 1.0 / transformed[2];
|
|
u = (int) (sw32_xcenter + zi * transformed[0] + 0.5);
|
|
v = (int) (sw32_ycenter - zi * transformed[1] + 0.5);
|
|
|
|
if ((v > sw32_d_vrectbottom_particle)
|
|
|| (u > sw32_d_vrectright_particle)
|
|
|| (v < sw32_d_vrecty) || (u < sw32_d_vrectx)) {
|
|
return;
|
|
}
|
|
|
|
pz = sw32_d_pzbuffer + (sw32_d_zwidth * v) + u;
|
|
izi = (int) (zi * 0x8000);
|
|
|
|
pix = izi >> sw32_d_pix_shift;
|
|
|
|
if (pix < sw32_d_pix_min)
|
|
pix = sw32_d_pix_min;
|
|
else if (pix > sw32_d_pix_max)
|
|
pix = sw32_d_pix_max;
|
|
|
|
switch(sw32_ctx->pixbytes)
|
|
{
|
|
case 1:
|
|
{
|
|
byte *pdest = (byte *) sw32_d_viewbuffer + sw32_d_scantable[v] + u,
|
|
pixcolor = pparticle->color;
|
|
switch (pix) {
|
|
case 1:
|
|
count = 1 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
count = 2 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 3:
|
|
count = 3 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
|
|
if (pz[2] <= izi) {
|
|
pz[2] = izi;
|
|
pdest[2] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
count = 4 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
|
|
if (pz[2] <= izi) {
|
|
pz[2] = izi;
|
|
pdest[2] = pixcolor;
|
|
}
|
|
|
|
if (pz[3] <= izi) {
|
|
pz[3] = izi;
|
|
pdest[3] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
count = pix << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
for (i = 0; i < pix; i++) {
|
|
if (pz[i] <= izi) {
|
|
pz[i] = izi;
|
|
pdest[i] = pixcolor;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
{
|
|
unsigned short *pdest = (unsigned short *) sw32_d_viewbuffer +
|
|
sw32_d_scantable[v] + u,
|
|
pixcolor = sw32_8to16table[(int) pparticle->color];
|
|
switch (pix) {
|
|
case 1:
|
|
count = 1 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
count = 2 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 3:
|
|
count = 3 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
|
|
if (pz[2] <= izi) {
|
|
pz[2] = izi;
|
|
pdest[2] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
count = 4 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
|
|
if (pz[2] <= izi) {
|
|
pz[2] = izi;
|
|
pdest[2] = pixcolor;
|
|
}
|
|
|
|
if (pz[3] <= izi) {
|
|
pz[3] = izi;
|
|
pdest[3] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
count = pix << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
for (i = 0; i < pix; i++) {
|
|
if (pz[i] <= izi) {
|
|
pz[i] = izi;
|
|
pdest[i] = pixcolor;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
{
|
|
int *pdest = (int *) sw32_d_viewbuffer + sw32_d_scantable[v] + u,
|
|
pixcolor = d_8to24table[(int) pparticle->color];
|
|
switch (pix) {
|
|
case 1:
|
|
count = 1 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
count = 2 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 3:
|
|
count = 3 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
|
|
if (pz[2] <= izi) {
|
|
pz[2] = izi;
|
|
pdest[2] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
count = 4 << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
if (pz[0] <= izi) {
|
|
pz[0] = izi;
|
|
pdest[0] = pixcolor;
|
|
}
|
|
|
|
if (pz[1] <= izi) {
|
|
pz[1] = izi;
|
|
pdest[1] = pixcolor;
|
|
}
|
|
|
|
if (pz[2] <= izi) {
|
|
pz[2] = izi;
|
|
pdest[2] = pixcolor;
|
|
}
|
|
|
|
if (pz[3] <= izi) {
|
|
pz[3] = izi;
|
|
pdest[3] = pixcolor;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
count = pix << sw32_d_y_aspect_shift;
|
|
|
|
for (; count; count--, pz += sw32_d_zwidth,
|
|
pdest += sw32_screenwidth) {
|
|
for (i = 0; i < pix; i++) {
|
|
if (pz[i] <= izi) {
|
|
pz[i] = izi;
|
|
pdest[i] = pixcolor;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
Sys_Error("D_DrawParticles: unsupported r_pixbytes %i",
|
|
sw32_ctx->pixbytes);
|
|
}
|
|
}
|