1300 lines
24 KiB
C
1300 lines
24 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// d_part.c: software driver module for drawing particles
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#include "globaldef.h"
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#include "d_local.h"
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#if !id386
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/*
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==============
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D_DrawParticle
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==============
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*/
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void D_DrawParticle (particle_t *pparticle)
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{
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vec3_t local, transformed;
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float zi;
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byte *pdest;
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short *pz;
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int i, izi, pix, count, u, v;
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// transform point
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VectorSubtract (pparticle->org, r_origin, local);
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transformed[0] = DotProduct(local, r_pright);
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transformed[1] = DotProduct(local, r_pup);
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transformed[2] = DotProduct(local, r_ppn);
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if (transformed[2] < PARTICLE_Z_CLIP)
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return;
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// project the point
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// FIXME: preadjust xcenter and ycenter
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zi = 1.0 / transformed[2];
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u = (int)(xcenter + zi * transformed[0] + 0.5);
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v = (int)(ycenter - zi * transformed[1] + 0.5);
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if ((v > d_vrectbottom_particle) ||
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(u > d_vrectright_particle) ||
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(v < d_vrecty) ||
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(u < d_vrectx))
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{
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return;
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}
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pz = d_pzbuffer + (d_zwidth * v) + u;
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pdest = d_viewbuffer + d_scantable[v] + u;
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izi = (int)(zi * 0x8000);
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pix = izi >> d_pix_shift;
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if (pix < d_pix_min)
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pix = d_pix_min;
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else if (pix > d_pix_max)
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pix = d_pix_max;
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switch (pix)
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{
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case 1:
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count = 1 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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}
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break;
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case 2:
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count = 2 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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if (pz[1] <= izi)
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{
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pz[1] = izi;
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pdest[1] = pparticle->color;
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}
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}
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break;
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case 3:
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count = 3 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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if (pz[1] <= izi)
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{
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pz[1] = izi;
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pdest[1] = pparticle->color;
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}
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if (pz[2] <= izi)
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{
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pz[2] = izi;
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pdest[2] = pparticle->color;
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}
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}
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break;
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case 4:
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count = 4 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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if (pz[1] <= izi)
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{
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pz[1] = izi;
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pdest[1] = pparticle->color;
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}
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if (pz[2] <= izi)
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{
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pz[2] = izi;
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pdest[2] = pparticle->color;
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}
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if (pz[3] <= izi)
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{
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pz[3] = izi;
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pdest[3] = pparticle->color;
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}
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}
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break;
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default:
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count = pix << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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for (i=0 ; i<pix ; i++)
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{
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if (pz[i] <= izi)
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{
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pz[i] = izi;
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pdest[i] = pparticle->color;
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}
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}
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}
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break;
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}
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}
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#endif // !id386
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extern cvar_t *temp2;
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// leilei - stupid experimental hack to draw our flare as a particle to check for visibility.
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void D_TestOurFlare (flare_t *pparticle)
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{
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vec3_t local, transformed;
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float zi;
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byte *pdest;
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short *pz;
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int i, izi, pix, count, u, v;
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// transform point
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VectorSubtract (pparticle->org, r_origin, local);
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transformed[0] = DotProduct(local, r_pright);
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transformed[1] = DotProduct(local, r_pup);
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transformed[2] = DotProduct(local, r_ppn);
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if (transformed[2] < PARTICLE_Z_CLIP)
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return;
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// project the point
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// FIXME: preadjust xcenter and ycenter
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zi = 1.0 / transformed[2];
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u = (int)(xcenter + zi * transformed[0] + 0.5);
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v = (int)(ycenter - zi * transformed[1] + 0.5);
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if ((v > d_vrectbottom_particle) ||
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(u > d_vrectright_particle) ||
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(v < d_vrecty) ||
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(u < d_vrectx))
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{
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return;
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}
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pz = d_pzbuffer + (d_zwidth * v) + u;
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pdest = d_viewbuffer + d_scantable[v] + u;
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izi = (int)(zi * 0x8000);
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pix = izi >> d_pix_shift;
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if (pix < d_pix_min)
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pix = d_pix_min;
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else if (pix > d_pix_max)
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pix = d_pix_max;
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switch (pix)
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{
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default:
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count = pix << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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for (i=0 ; i<pix ; i++)
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{
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if (pz[i] <= izi)
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pparticle->amiseen = 1;
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else
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pparticle->amiseen = 0;
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}
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}
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break;
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}
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}
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void D_DrawParticle_Fog (particle_t *pparticle)
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{
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vec3_t local, transformed;
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float zi;
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byte *pdest;
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short *pz;
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int i, izi, pix, count, u, v;
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// transform point
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VectorSubtract (pparticle->org, r_origin, local);
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transformed[0] = DotProduct(local, r_pright);
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transformed[1] = DotProduct(local, r_pup);
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transformed[2] = DotProduct(local, r_ppn);
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if (transformed[2] < PARTICLE_Z_CLIP)
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return;
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// project the point
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// FIXME: preadjust xcenter and ycenter
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zi = 1.0 / transformed[2];
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u = (int)(xcenter + zi * transformed[0] + 0.5);
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v = (int)(ycenter - zi * transformed[1] + 0.5);
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if ((v > d_vrectbottom_particle) ||
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(u > d_vrectright_particle) ||
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(v < d_vrecty) ||
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(u < d_vrectx))
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{
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return;
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}
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pz = d_pzbuffer + (d_zwidth * v) + u;
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pdest = d_viewbuffer + d_scantable[v] + u;
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izi = (int)(zi * 0x8000);
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pix = izi >> d_pix_shift;
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if (pix < d_pix_min)
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pix = d_pix_min;
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else if (pix > d_pix_max)
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pix = d_pix_max;
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switch (pix)
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{
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case 1:
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count = 1 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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}
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break;
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case 2:
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count = 2 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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if (pz[1] <= izi)
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{
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pz[1] = izi;
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pdest[1] = pparticle->color;
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}
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}
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break;
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case 3:
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count = 3 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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if (pz[1] <= izi)
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{
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pz[1] = izi;
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pdest[1] = pparticle->color;
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}
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if (pz[2] <= izi)
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{
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pz[2] = izi;
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pdest[2] = pparticle->color;
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}
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}
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break;
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case 4:
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count = 4 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = pparticle->color;
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}
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if (pz[1] <= izi)
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{
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pz[1] = izi;
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pdest[1] = pparticle->color;
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}
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if (pz[2] <= izi)
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{
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pz[2] = izi;
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pdest[2] = pparticle->color;
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}
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if (pz[3] <= izi)
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{
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pz[3] = izi;
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pdest[3] = pparticle->color;
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}
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}
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break;
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default:
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count = pix << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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for (i=0 ; i<pix ; i++)
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{
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if (pz[i] <= izi)
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{
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pz[i] = izi;
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pdest[i] = pparticle->color;
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}
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}
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}
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break;
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}
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}
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// LEILEI - lame particle blending
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extern pixel_t transTable[256][256];
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extern pixel_t addTable[256][256];
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/*
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==============
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D_DrawParticleLit
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useful for not-glow-in-the-dark stuff, like dirt, and guts
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==============
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*/
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void D_DrawParticleLit (particle_t *pparticle)
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{
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vec3_t local, transformed;
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float zi;
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byte *pdest;
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short *pz;
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int i, izi, pix, count, u, v, col;
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float alf;
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// transform point
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VectorSubtract (pparticle->org, r_origin, local);
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transformed[0] = DotProduct(local, r_pright);
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transformed[1] = DotProduct(local, r_pup);
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transformed[2] = DotProduct(local, r_ppn);
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if (transformed[2] < PARTICLE_Z_CLIP)
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return;
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// project the point
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// FIXME: preadjust xcenter and ycenter
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zi = 1.0 / transformed[2];
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u = (int)(xcenter + zi * transformed[0] + 0.5);
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v = (int)(ycenter - zi * transformed[1] + 0.5);
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if ((v > d_vrectbottom_particle) || (u > d_vrectright_particle) || (v < d_vrecty) || (u < d_vrectx))
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return;
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col = (int)pparticle->color;
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alf = (R_LightPoint(pparticle->org) / 272);
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//8192 * (pparticle->alpha * -1) + 16384;
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Con_DPrintf ("%f paticl\n", alf);
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col = ((byte *)acolormap)[col + ((int)alf & 0xFF00)];
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pz = d_pzbuffer + (d_zwidth * v) + u;
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pdest = d_viewbuffer + d_scantable[v] + u;
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izi = (int)(zi * 0x8000);
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pix = izi >> d_pix_shift;
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if (pix < d_pix_min)
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pix = d_pix_min;
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else if (pix > d_pix_max)
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pix = d_pix_max;
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switch (pix)
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{
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case 1:
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count = 1 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = col;
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}
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}
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break;
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case 2:
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count = 2 << d_y_aspect_shift;
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
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if (pz[0] <= izi)
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{
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pz[0] = izi;
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pdest[0] = col;
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}
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if (pz[1] <= izi)
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{
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pz[1] = izi;
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pdest[1] = col;
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}
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}
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break;
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case 3:
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count = 3 << d_y_aspect_shift;
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|
|
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
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{
|
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if (pz[0] <= izi)
|
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{
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pz[0] = izi;
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pdest[0] = col;
|
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}
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if (pz[1] <= izi)
|
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{
|
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pz[1] = izi;
|
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pdest[1] = col;
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}
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|
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if (pz[2] <= izi)
|
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{
|
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pz[2] = izi;
|
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pdest[2] = col;
|
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}
|
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}
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break;
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|
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case 4:
|
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count = 4 << d_y_aspect_shift;
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|
|
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for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
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{
|
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if (pz[0] <= izi)
|
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{
|
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pz[0] = izi;
|
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pdest[0] = col;
|
|
}
|
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|
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if (pz[1] <= izi)
|
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{
|
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pz[1] = izi;
|
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pdest[1] = col;
|
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}
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|
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if (pz[2] <= izi)
|
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{
|
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pz[2] = izi;
|
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pdest[2] = col;
|
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}
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|
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if (pz[3] <= izi)
|
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{
|
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pz[3] = izi;
|
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pdest[3] = col;
|
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}
|
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}
|
|
break;
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|
|
default:
|
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count = pix << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
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for (i=0 ; i<pix ; i++)
|
|
{
|
|
if (pz[i] <= izi)
|
|
{
|
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pz[i] = izi;
|
|
pdest[i] = col;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
==============
|
|
D_DrawParticleA33
|
|
==============
|
|
*/
|
|
void D_DrawParticle_A33 (particle_t *pparticle)
|
|
{
|
|
vec3_t local, transformed;
|
|
float zi;
|
|
byte *pdest;
|
|
short *pz;
|
|
int i, izi, pix, count, u, v, col;
|
|
int alf;
|
|
// 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 xcenter and ycenter
|
|
zi = 1.0 / transformed[2];
|
|
u = (int)(xcenter + zi * transformed[0] + 0.5);
|
|
v = (int)(ycenter - zi * transformed[1] + 0.5);
|
|
|
|
if ((v > d_vrectbottom_particle) ||
|
|
(u > d_vrectright_particle) ||
|
|
(v < d_vrecty) ||
|
|
(u < d_vrectx))
|
|
{
|
|
return;
|
|
}
|
|
|
|
col = (int)pparticle->color;
|
|
|
|
|
|
pz = d_pzbuffer + (d_zwidth * v) + u;
|
|
pdest = d_viewbuffer + d_scantable[v] + u;
|
|
|
|
izi = (int)(zi * 0x8000);
|
|
|
|
pix = izi >> d_pix_shift;
|
|
|
|
if (pix < d_pix_min)
|
|
pix = d_pix_min;
|
|
else if (pix > d_pix_max)
|
|
pix = d_pix_max;
|
|
|
|
|
|
switch (pix)
|
|
{
|
|
case 1:
|
|
count = 1 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] = transTable[col][pdest[0]];
|
|
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
count = 2 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] = transTable[col][pdest[0]];
|
|
}
|
|
|
|
if (pz[1] <= izi)
|
|
{
|
|
pz[1] = izi;
|
|
pdest[1] = transTable[col][pdest[1]];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
count = 3 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] = transTable[col][pdest[0]];
|
|
}
|
|
|
|
if (pz[1] <= izi)
|
|
{
|
|
pz[1] = izi;
|
|
pdest[1] = transTable[col][pdest[1]];
|
|
}
|
|
|
|
if (pz[2] <= izi)
|
|
{
|
|
pz[2] = izi;
|
|
pdest[2] = transTable[col][pdest[2]];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
count = 4 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] =transTable[col][pdest[0]];
|
|
}
|
|
|
|
if (pz[1] <= izi)
|
|
{
|
|
pz[1] = izi;
|
|
pdest[1] = transTable[col][pdest[1]];
|
|
}
|
|
|
|
if (pz[2] <= izi)
|
|
{
|
|
pz[2] = izi;
|
|
pdest[2] =transTable[col][pdest[2]];
|
|
}
|
|
|
|
if (pz[3] <= izi)
|
|
{
|
|
pz[3] = izi;
|
|
pdest[3] = transTable[col][pdest[3]];
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
count = pix << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
for (i=0 ; i<pix ; i++)
|
|
{
|
|
if (pz[i] <= izi)
|
|
{
|
|
pz[i] = izi;
|
|
pdest[i] = transTable[col][pdest[i]];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void D_DrawParticle_A66 (particle_t *pparticle)
|
|
{
|
|
vec3_t local, transformed;
|
|
float zi;
|
|
byte *pdest;
|
|
short *pz;
|
|
int i, izi, pix, count, u, v, col;
|
|
|
|
// 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 xcenter and ycenter
|
|
zi = 1.0 / transformed[2];
|
|
u = (int)(xcenter + zi * transformed[0] + 0.5);
|
|
v = (int)(ycenter - zi * transformed[1] + 0.5);
|
|
|
|
if ((v > d_vrectbottom_particle) ||
|
|
(u > d_vrectright_particle) ||
|
|
(v < d_vrecty) ||
|
|
(u < d_vrectx))
|
|
{
|
|
return;
|
|
}
|
|
|
|
col = (int)pparticle->color;
|
|
|
|
|
|
pz = d_pzbuffer + (d_zwidth * v) + u;
|
|
pdest = d_viewbuffer + d_scantable[v] + u;
|
|
|
|
izi = (int)(zi * 0x8000);
|
|
|
|
pix = izi >> d_pix_shift;
|
|
|
|
if (pix < d_pix_min)
|
|
pix = d_pix_min;
|
|
else if (pix > d_pix_max)
|
|
pix = d_pix_max;
|
|
|
|
switch (pix)
|
|
{
|
|
case 1:
|
|
count = 1 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] = transTable[pdest[0]][col];
|
|
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
count = 2 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] = transTable[pdest[0]][col];
|
|
}
|
|
|
|
if (pz[1] <= izi)
|
|
{
|
|
pz[1] = izi;
|
|
pdest[1] = transTable[pdest[1]][col];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
count = 3 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] = transTable[pdest[0]][col];
|
|
}
|
|
|
|
if (pz[1] <= izi)
|
|
{
|
|
pz[1] = izi;
|
|
pdest[1] = transTable[pdest[1]][col];
|
|
}
|
|
|
|
if (pz[2] <= izi)
|
|
{
|
|
pz[2] = izi;
|
|
pdest[2] = transTable[pdest[2]][col];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
count = 4 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
{
|
|
pz[0] = izi;
|
|
pdest[0] =transTable[pdest[0]][col];
|
|
}
|
|
|
|
if (pz[1] <= izi)
|
|
{
|
|
pz[1] = izi;
|
|
pdest[1] = transTable[pdest[1]][col];
|
|
}
|
|
|
|
if (pz[2] <= izi)
|
|
{
|
|
pz[2] = izi;
|
|
pdest[2] =transTable[pdest[2]][col];
|
|
}
|
|
|
|
if (pz[3] <= izi)
|
|
{
|
|
pz[3] = izi;
|
|
pdest[3] = transTable[pdest[3]][col];
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
count = pix << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
for (i=0 ; i<pix ; i++)
|
|
{
|
|
if (pz[i] <= izi)
|
|
{
|
|
pz[i] = izi;
|
|
pdest[i] = transTable[pdest[i]][col];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
extern cvar_t *r_shift1;
|
|
|
|
|
|
void D_DrawParticle_Add (particle_t *pparticle)
|
|
{
|
|
vec3_t local, transformed;
|
|
float zi;
|
|
byte *pdest;
|
|
short *pz;
|
|
int i, izi, pix, count, u, v, col, alf;
|
|
|
|
// 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 xcenter and ycenter
|
|
zi = 1.0 / transformed[2];
|
|
u = (int)(xcenter + zi * transformed[0] + 0.5);
|
|
v = (int)(ycenter - zi * transformed[1] + 0.5);
|
|
|
|
if ((v > d_vrectbottom_particle) ||
|
|
(u > d_vrectright_particle) ||
|
|
(v < d_vrecty) ||
|
|
(u < d_vrectx))
|
|
{
|
|
return;
|
|
}
|
|
|
|
pz = d_pzbuffer + (d_zwidth * v) + u;
|
|
pdest = d_viewbuffer + d_scantable[v] + u;
|
|
|
|
izi = (int)(zi * 0x8000);
|
|
|
|
pix = izi >> d_pix_shift;
|
|
|
|
if (pix < d_pix_min)
|
|
pix = d_pix_min;
|
|
else if (pix > d_pix_max)
|
|
pix = d_pix_max;
|
|
|
|
|
|
col = (int)pparticle->color;
|
|
|
|
|
|
// Attempt to fade the additive out according to alpha
|
|
// by colormap translation (!)
|
|
// TODO: use 'glsuck' colormap once that works
|
|
|
|
if(pparticle->alpha < 1)
|
|
{
|
|
alf = 8192 * (pparticle->alpha * -1) + 16384;
|
|
col = ((byte *)acolormap)[col + (alf & 0xFF00)];
|
|
}
|
|
|
|
|
|
switch (pix)
|
|
{
|
|
case 1:
|
|
count = 1 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] = addTable[pdest[0]][col];
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
count = 2 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] = addTable[pdest[0]][col];
|
|
if (pz[1] <= izi)
|
|
pdest[1] = addTable[pdest[1]][col];
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
count = 3 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] = addTable[pdest[0]][col];
|
|
if (pz[1] <= izi)
|
|
pdest[1] = addTable[pdest[1]][col];
|
|
if (pz[2] <= izi)
|
|
pdest[2] = addTable[pdest[2]][col];
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
count = 4 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] =addTable[pdest[0]][col];
|
|
if (pz[1] <= izi)
|
|
pdest[1] = addTable[pdest[1]][col];
|
|
if (pz[2] <= izi)
|
|
pdest[2] =addTable[pdest[2]][col];
|
|
if (pz[3] <= izi)
|
|
pdest[3] = addTable[pdest[3]][col];
|
|
}
|
|
break;
|
|
|
|
default:
|
|
count = pix << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
for (i=0 ; i<pix ; i++)
|
|
{
|
|
if (pz[i] <= izi)
|
|
pdest[i] = addTable[pdest[i]][col];
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
extern byte menumap[256][16]; // haha hack
|
|
void D_DrawParticle_Gel (particle_t *pparticle)
|
|
{
|
|
vec3_t local, transformed;
|
|
float zi;
|
|
byte *pdest;
|
|
short *pz;
|
|
int i, izi, pix, count, u, v, col, alf;
|
|
int gmcol;
|
|
|
|
// 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 xcenter and ycenter
|
|
zi = 1.0 / transformed[2];
|
|
u = (int)(xcenter + zi * transformed[0] + 0.5);
|
|
v = (int)(ycenter - zi * transformed[1] + 0.5);
|
|
|
|
if ((v > d_vrectbottom_particle) ||
|
|
(u > d_vrectright_particle) ||
|
|
(v < d_vrecty) ||
|
|
(u < d_vrectx))
|
|
{
|
|
return;
|
|
}
|
|
gmcol = pparticle->color; // sample a pixel (TODO: Average a pixel on load)
|
|
|
|
if (gmcol < 16) gmcol = 0;
|
|
else if (gmcol < 32) gmcol = 1;
|
|
else if (gmcol < 48) gmcol = 2;
|
|
else if (gmcol < 64) gmcol = 3;
|
|
else if (gmcol < 80) gmcol = 4;
|
|
else if (gmcol < 96) gmcol = 5;
|
|
else if (gmcol < 112) gmcol = 6;
|
|
else if (gmcol < 128) gmcol = 7;
|
|
else if (gmcol < 144) gmcol = 8;
|
|
else if (gmcol < 160) gmcol = 9;
|
|
else if (gmcol < 176) gmcol = 10;
|
|
else if (gmcol < 192) gmcol = 11;
|
|
else if (gmcol < 208) gmcol = 12;
|
|
else if (gmcol < 224) gmcol = 13;
|
|
else if (gmcol < 240) gmcol = 14;
|
|
else gmcol = 2;
|
|
|
|
pparticle->color = gmcol;
|
|
|
|
pz = d_pzbuffer + (d_zwidth * v) + u;
|
|
pdest = d_viewbuffer + d_scantable[v] + u;
|
|
|
|
izi = (int)(zi * 0x8000);
|
|
|
|
pix = izi >> d_pix_shift;
|
|
|
|
if (pix < d_pix_min)
|
|
pix = d_pix_min;
|
|
else if (pix > d_pix_max)
|
|
pix = d_pix_max;
|
|
|
|
|
|
col = (int)pparticle->color;
|
|
|
|
switch (pix)
|
|
{
|
|
case 1:
|
|
count = 1 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] = menumap[pdest[0]][col];
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
count = 2 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] = menumap[pdest[0]][col];
|
|
if (pz[1] <= izi)
|
|
pdest[1] = menumap[pdest[1]][col];
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
count = 3 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] = menumap[pdest[0]][col];
|
|
if (pz[1] <= izi)
|
|
pdest[1] = menumap[pdest[1]][col];
|
|
if (pz[2] <= izi)
|
|
pdest[2] = menumap[pdest[2]][col];
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
count = 4 << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
if (pz[0] <= izi)
|
|
pdest[0] = menumap[pdest[0]][col];
|
|
if (pz[1] <= izi)
|
|
pdest[1] = menumap[pdest[1]][col];
|
|
if (pz[2] <= izi)
|
|
pdest[2] = menumap[pdest[2]][col];
|
|
if (pz[3] <= izi)
|
|
pdest[3] = menumap[pdest[3]][col];
|
|
}
|
|
break;
|
|
|
|
default:
|
|
count = pix << d_y_aspect_shift;
|
|
|
|
for ( ; count ; count--, pz += d_zwidth, pdest += screenwidth)
|
|
{
|
|
for (i=0 ; i<pix ; i++)
|
|
{
|
|
if (pz[i] <= izi)
|
|
pdest[i] = menumap[pdest[i]][col];
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// fteqw says hi
|
|
|
|
void D_2dPos(vec3_t pos, int *u, int *v, int *z)
|
|
{
|
|
float zi;
|
|
vec3_t local, transformed;
|
|
|
|
// transform point
|
|
VectorSubtract (pos, r_origin, local);
|
|
|
|
transformed[2] = DotProduct(local, r_ppn);
|
|
|
|
if (transformed[2] < PARTICLE_Z_CLIP) //near clip
|
|
{
|
|
*u = -1; //send it off the side intentionally.
|
|
return;
|
|
}
|
|
|
|
transformed[0] = DotProduct(local, r_pright);
|
|
transformed[1] = DotProduct(local, r_pup);
|
|
|
|
// project the point
|
|
zi = 1.0 / transformed[2];
|
|
*u = (int)(xcenter + zi * transformed[0] + 0.5);
|
|
*v = (int)(ycenter - zi * transformed[1] + 0.5);
|
|
|
|
*z = (int)(zi * 0x8000);
|
|
}
|
|
vec_t VI2Length(int x, int y)
|
|
{
|
|
float length;
|
|
length = (float)x*x + (float)y*y;
|
|
length = sqrt (length);
|
|
return length;
|
|
}
|
|
|
|
|
|
void D_DrawSparkTrans (vec3_t src, vec3_t dest, unsigned int pcolour, int blend) //draw a line in 3d space, 8bpp
|
|
{
|
|
byte *pdest;
|
|
short *pz;
|
|
int count, u1, v1, z1;
|
|
float alfa;
|
|
int u2, v2, z2;
|
|
int coll, forg;
|
|
int du, dv, dz;
|
|
|
|
D_2dPos(src, &u1, &v1, &z1);
|
|
D_2dPos(dest, &u2, &v2, &z2);
|
|
|
|
if ((v1 > d_vrectbottom_particle) ||
|
|
(u1 > d_vrectright_particle) ||
|
|
(v1 < d_vrecty) ||
|
|
(u1 < d_vrectx))
|
|
{
|
|
return;
|
|
}
|
|
|
|
if ((v2 > d_vrectbottom_particle) ||
|
|
(u2 > d_vrectright_particle) ||
|
|
(v2 < d_vrecty) ||
|
|
(u2 < d_vrectx))
|
|
{
|
|
return;
|
|
}
|
|
|
|
du = u2 - u1;
|
|
dv = v2 - v1;
|
|
dz = z2 - z1;
|
|
|
|
if (!du && !dv)
|
|
count = 1;
|
|
else
|
|
{
|
|
count = VI2Length(du, dv);
|
|
if (!count)
|
|
count = 1;
|
|
}
|
|
|
|
du *= 256*256;
|
|
dv *= 256*256;
|
|
dz *= 256*256;
|
|
u1 = u1<<16;
|
|
v1 = v1<<16;
|
|
z1 = z1<<16;
|
|
du /= count;
|
|
dv /= count;
|
|
dz /= count;
|
|
|
|
if (blend == 1) // additive
|
|
{
|
|
do
|
|
{
|
|
pz = d_pzbuffer + (d_zwidth * (v1>>16)) + (u1>>16);
|
|
|
|
if (*pz <= z1>>16)
|
|
{
|
|
// *pz = z1>>16;
|
|
pdest = d_viewbuffer + d_scantable[v1>>16] + (u1>>16);
|
|
*pdest = pcolour;
|
|
//*pdest = addTable[(byte)pdest][pcolour];
|
|
}
|
|
|
|
u1 += du;
|
|
v1 += dv;
|
|
z1 += dz;
|
|
} while (count--);
|
|
}
|
|
else // merge blend
|
|
{
|
|
|
|
do
|
|
{
|
|
pz = d_pzbuffer + (d_zwidth * (v1>>16)) + (u1>>16);
|
|
if (foguse){ forg = (short)pz /2048; if (forg > 32762) forg = 32762;
|
|
|
|
pcolour = host_fogmap[pcolour + (forg >> fogrange & 0xFF00)];
|
|
} // leilei - fog
|
|
if (*pz <= z1>>16)
|
|
{
|
|
// *pz = z1>>16;
|
|
pdest = d_viewbuffer + d_scantable[v1>>16] + (u1>>16);
|
|
*pdest = pcolour;
|
|
}
|
|
|
|
u1 += du;
|
|
v1 += dv;
|
|
z1 += dz;
|
|
} while (count--);
|
|
}
|
|
}
|