19fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 29fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamCopyright (C) 1996-1997 Id Software, Inc. 39fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 49fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamThis program is free software; you can redistribute it and/or 59fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreammodify it under the terms of the GNU General Public License 69fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamas published by the Free Software Foundation; either version 2 79fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamof the License, or (at your option) any later version. 89fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 99fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamThis program is distributed in the hope that it will be useful, 109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreambut WITHOUT ANY WARRANTY; without even the implied warranty of 119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamSee the GNU General Public License for more details. 149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamYou should have received a copy of the GNU General Public License 169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamalong with this program; if not, write to the Free Software 179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// r_sky.c 219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "quakedef.h" 239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "r_local.h" 249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "d_local.h" 259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint iskyspeed = 8; 289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint iskyspeed2 = 2; 299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamfloat skyspeed, skyspeed2; 309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamfloat skytime; 329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreambyte *r_skysource; 349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint r_skymade; 369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint r_skydirect; // not used? 379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// TODO: clean up these routines 409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreambyte bottomsky[128*131]; 429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreambyte bottommask[128*131]; 439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreambyte newsky[128*256]; // newsky and topsky both pack in here, 128 bytes 449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // of newsky on the left of each scan, 128 bytes 459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // of topsky on the right, because the low-level 469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // drawers need 256-byte scan widths 479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============= 519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_InitSky 529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamA sky texture is 256*128, with the right side being a masked overlay 549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============== 559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_InitSky (texture_t *mt) 579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i, j; 599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream byte *src; 609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream src = (byte *)mt + mt->offsets[0]; 629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<128 ; i++) 649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (j=0 ; j<128 ; j++) 669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream newsky[(i*256) + j + 128] = src[i*256 + j + 128]; 689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<128 ; i++) 729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (j=0 ; j<131 ; j++) 749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (src[i*256 + (j & 0x7F)]) 769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream bottomsky[(i*131) + j] = src[i*256 + (j & 0x7F)]; 789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream bottommask[(i*131) + j] = 0; 799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream bottomsky[(i*131) + j] = 0; 839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream bottommask[(i*131) + j] = 0xff; 849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r_skysource = newsky; 899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================= 949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_MakeSky 959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================= 969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_MakeSky (void) 989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int x, y; 1009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int ofs, baseofs; 1019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int xshift, yshift; 1029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream unsigned *pnewsky; 1039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream static int xlast = -1, ylast = -1; 1049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream xshift = skytime*skyspeed; 1069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream yshift = skytime*skyspeed; 1079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if ((xshift == xlast) && (yshift == ylast)) 1099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return; 1109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream xlast = xshift; 1129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ylast = yshift; 1139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky = (unsigned *)&newsky[0]; 1159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (y=0 ; y<SKYSIZE ; y++) 1179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream baseofs = ((y+yshift) & SKYMASK) * 131; 1199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// FIXME: clean this up 1219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#if UNALIGNED_OK 1229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (x=0 ; x<SKYSIZE ; x += 4) 1249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ofs = baseofs + ((x+xshift) & SKYMASK); 1269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // PORT: unaligned dword access to bottommask and bottomsky 1289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *pnewsky = (*(pnewsky + (128 / sizeof (unsigned))) & 1309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(unsigned *)&bottommask[ofs]) | 1319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(unsigned *)&bottomsky[ofs]; 1329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky++; 1339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#else 1369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (x=0 ; x<SKYSIZE ; x++) 1389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ofs = baseofs + ((x+xshift) & SKYMASK); 1409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)pnewsky = (*((byte *)pnewsky + 128) & 1429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)&bottommask[ofs]) | 1439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)&bottomsky[ofs]; 1449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky = (unsigned *)((byte *)pnewsky + 1); 1459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#endif 1489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky += 128 / sizeof (unsigned); 1509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r_skymade = 1; 1539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 1549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 1579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================= 1589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_GenSkyTile 1599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================= 1609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 1619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_GenSkyTile (void *pdest) 1629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 1639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int x, y; 1649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int ofs, baseofs; 1659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int xshift, yshift; 1669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream unsigned *pnewsky; 1679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream unsigned *pd; 1689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream xshift = skytime*skyspeed; 1709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream yshift = skytime*skyspeed; 1719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky = (unsigned *)&newsky[0]; 1739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pd = (unsigned *)pdest; 1749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (y=0 ; y<SKYSIZE ; y++) 1769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream baseofs = ((y+yshift) & SKYMASK) * 131; 1789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// FIXME: clean this up 1809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#if UNALIGNED_OK 1819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (x=0 ; x<SKYSIZE ; x += 4) 1839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ofs = baseofs + ((x+xshift) & SKYMASK); 1859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // PORT: unaligned dword access to bottommask and bottomsky 1879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *pd = (*(pnewsky + (128 / sizeof (unsigned))) & 1899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(unsigned *)&bottommask[ofs]) | 1909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(unsigned *)&bottomsky[ofs]; 1919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky++; 1929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pd++; 1939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#else 1969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (x=0 ; x<SKYSIZE ; x++) 1989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ofs = baseofs + ((x+xshift) & SKYMASK); 2009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)pd = (*((byte *)pnewsky + 128) & 2029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)&bottommask[ofs]) | 2039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)&bottomsky[ofs]; 2049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky = (unsigned *)((byte *)pnewsky + 1); 2059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pd = (unsigned *)((byte *)pd + 1); 2069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#endif 2099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky += 128 / sizeof (unsigned); 2119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 2169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================= 2179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_GenSkyTile16 2189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================= 2199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 2209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_GenSkyTile16 (void *pdest) 2219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 2229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int x, y; 2239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int ofs, baseofs; 2249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int xshift, yshift; 2259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream byte *pnewsky; 2269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream unsigned short *pd; 2279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream xshift = skytime * skyspeed; 2299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream yshift = skytime * skyspeed; 2309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky = (byte *)&newsky[0]; 2329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pd = (unsigned short *)pdest; 2339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (y=0 ; y<SKYSIZE ; y++) 2359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream baseofs = ((y+yshift) & SKYMASK) * 131; 2379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// FIXME: clean this up 2399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// FIXME: do faster unaligned version? 2409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (x=0 ; x<SKYSIZE ; x++) 2419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ofs = baseofs + ((x+xshift) & SKYMASK); 2439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *pd = d_8to16table[(*(pnewsky + 128) & 2459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)&bottommask[ofs]) | 2469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream *(byte *)&bottomsky[ofs]]; 2479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky++; 2489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pd++; 2499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pnewsky += TILE_SIZE; 2529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 2579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============= 2589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_SetSkyFrame 2599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============== 2609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 2619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_SetSkyFrame (void) 2629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 2639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int g, s1, s2; 2649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream float temp; 2659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream skyspeed = iskyspeed; 2679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream skyspeed2 = iskyspeed2; 2689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream g = GreatestCommonDivisor (iskyspeed, iskyspeed2); 2709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream s1 = iskyspeed / g; 2719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream s2 = iskyspeed2 / g; 2729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream temp = SKYSIZE * s1 * s2; 2739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream skytime = cl.time - ((int)(cl.time / temp) * temp); 2759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r_skymade = 0; 2789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 281