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// 219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// vid_vga.c: VGA-specific DOS video stuff 229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// 239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// TODO: proper handling of page-swap failure 259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include <dos.h> 279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "quakedef.h" 299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "d_local.h" 309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "dosisms.h" 319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "vid_dos.h" 329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include <dpmi.h> 339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamextern regs_t regs; 359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint VGA_width, VGA_height, VGA_rowbytes, VGA_bufferrowbytes; 379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreambyte *VGA_pagebase; 389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvmode_t *VGA_pcurmode; 399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamstatic int VGA_planar; 419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamstatic int VGA_numpages; 429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamstatic int VGA_buffersize; 439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid *vid_surfcache; 459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint vid_surfcachesize; 469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint VGA_highhunkmark; 489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "vgamodes.h" 509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#define NUMVIDMODES (sizeof(vgavidmodes) / sizeof(vgavidmodes[0])) 529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_UpdatePlanarScreen (void *srcbuffer); 549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamstatic byte backingbuf[48*24]; 569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_BeginDirectRect 609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_BeginDirectRect (viddef_t *lvid, struct vmode_s *pcurrentmode, int x, 639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int y, byte *pbitmap, int width, int height) 649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i, j, k, plane, reps, repshift; 669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (!lvid->direct) 689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return; 699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (lvid->aspect > 1.5) 719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream reps = 2; 739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream repshift = 1; 749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream reps = 1; 789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream repshift = 0; 799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (pcurrentmode->planar) 829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (plane=0 ; plane<4 ; plane++) 849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // select the correct plane for reading and writing 869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (SC_INDEX, MAP_MASK); 879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (SC_DATA, 1 << plane); 889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (GC_INDEX, READ_MAP); 899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (GC_DATA, plane); 909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<(height << repshift) ; i += reps) 929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (k=0 ; k<reps ; k++) 949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (j=0 ; j<(width >> 2) ; j++) 969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream backingbuf[(i + k) * 24 + (j << 2) + plane] = 989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->direct[(y + i + k) * VGA_rowbytes + 999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream (x >> 2) + j]; 1009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->direct[(y + i + k) * VGA_rowbytes + (x>>2) + j] = 1019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pbitmap[(i >> repshift) * 24 + 1029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream (j << 2) + plane]; 1039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 1099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<(height << repshift) ; i += reps) 1119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (j=0 ; j<reps ; j++) 1139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream memcpy (&backingbuf[(i + j) * 24], 1159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->direct + x + ((y << repshift) + i + j) * 1169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_rowbytes, 1179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream width); 1189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream memcpy (lvid->direct + x + ((y << repshift) + i + j) * 1199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_rowbytes, 1209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream &pbitmap[(i >> repshift) * width], 1219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream width); 1229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 1269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 1299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 1309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_EndDirectRect 1319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 1329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 1339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_EndDirectRect (viddef_t *lvid, struct vmode_s *pcurrentmode, int x, 1349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int y, int width, int height) 1359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 1369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i, j, k, plane, reps, repshift; 1379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (!lvid->direct) 1399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return; 1409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (lvid->aspect > 1.5) 1429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream reps = 2; 1449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream repshift = 1; 1459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 1479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream reps = 1; 1499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream repshift = 0; 1509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (pcurrentmode->planar) 1539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (plane=0 ; plane<4 ; plane++) 1559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // select the correct plane for writing 1579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (SC_INDEX, MAP_MASK); 1589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (SC_DATA, 1 << plane); 1599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<(height << repshift) ; i += reps) 1619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (k=0 ; k<reps ; k++) 1639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (j=0 ; j<(width >> 2) ; j++) 1659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->direct[(y + i + k) * VGA_rowbytes + (x>>2) + j] = 1679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream backingbuf[(i + k) * 24 + (j << 2) + plane]; 1689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 1749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<(height << repshift) ; i += reps) 1769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (j=0 ; j<reps ; j++) 1789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream memcpy (lvid->direct + x + ((y << repshift) + i + j) * 1809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_rowbytes, 1819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream &backingbuf[(i + j) * 24], 1829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream width); 1839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 1879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 1909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 1919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_Init 1929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 1939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 1949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_Init (void) 1959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 1969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i; 1979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// link together all the VGA modes 1999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<(NUMVIDMODES - 1) ; i++) 2009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vgavidmodes[i].pnext = &vgavidmodes[i+1]; 2029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// add the VGA modes at the start of the mode list 2059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vgavidmodes[NUMVIDMODES-1].pnext = pvidmodes; 2069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pvidmodes = &vgavidmodes[0]; 2079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream numvidmodes += NUMVIDMODES; 2099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 2139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 2149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_WaitVsync 2159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 2169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 2179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_WaitVsync (void) 2189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 2199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream while ((inportb (0x3DA) & 0x08) == 0) 2209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ; 2219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 2259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 2269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_ClearVideoMem 2279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 2289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 2299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_ClearVideoMem (int planar) 2309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 2319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (planar) 2339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // enable all planes for writing 2359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (SC_INDEX, MAP_MASK); 2369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb (SC_DATA, 0x0F); 2379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream Q_memset (VGA_pagebase, 0, VGA_rowbytes * VGA_height); 2409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 2439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 2449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_FreeAndAllocVidbuffer 2459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 2469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 2479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamqboolean VGA_FreeAndAllocVidbuffer (viddef_t *lvid, int allocnewbuffer) 2489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 2499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int tsize, tbuffersize; 2509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (allocnewbuffer) 2529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // alloc an extra line in case we want to wrap, and allocate the z-buffer 2549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tbuffersize = (lvid->rowbytes * (lvid->height + 1)) + 2559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream (lvid->width * lvid->height * sizeof (*d_pzbuffer)); 2569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 2589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // just allocate the z-buffer 2609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tbuffersize = lvid->width * lvid->height * sizeof (*d_pzbuffer); 2619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tsize = D_SurfaceCacheForRes (lvid->width, lvid->height); 2649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tbuffersize += tsize; 2669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// see if there's enough memory, allowing for the normal mode 0x13 pixel, 2689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// z, and surface buffers 2699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if ((host_parms.memsize - tbuffersize + SURFCACHE_SIZE_AT_320X200 + 2709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 0x10000 * 3) < minimum_memory) 2719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream Con_Printf ("Not enough memory for video mode\n"); 2739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_pcurmode = NULL; // so no further accesses to the buffer are 2749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // attempted, particularly when clearing 2759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return false; // not enough memory for mode 2769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_buffersize = tbuffersize; 2799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vid_surfcachesize = tsize; 2809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (d_pzbuffer) 2829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream D_FlushCaches (); 2849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream Hunk_FreeToHighMark (VGA_highhunkmark); 2859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream d_pzbuffer = NULL; 2869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_highhunkmark = Hunk_HighMark (); 2899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream d_pzbuffer = Hunk_HighAllocName (VGA_buffersize, "video"); 2919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vid_surfcache = (byte *)d_pzbuffer 2939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream + lvid->width * lvid->height * sizeof (*d_pzbuffer); 2949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (allocnewbuffer) 2969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->buffer = (void *)( (byte *)vid_surfcache + vid_surfcachesize); 2989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->conbuffer = lvid->buffer; 2999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 3009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return true; 3029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 3039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 3069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 3079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_CheckAdequateMem 3089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 3099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 3109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamqboolean VGA_CheckAdequateMem (int width, int height, int rowbytes, 3119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int allocnewbuffer) 3129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 3139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int tbuffersize; 3149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tbuffersize = width * height * sizeof (*d_pzbuffer); 3169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (allocnewbuffer) 3189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 3199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // alloc an extra line in case we want to wrap, and allocate the z-buffer 3209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tbuffersize += (rowbytes * (height + 1)); 3219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 3229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tbuffersize += D_SurfaceCacheForRes (width, height); 3249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// see if there's enough memory, allowing for the normal mode 0x13 pixel, 3269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// z, and surface buffers 3279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if ((host_parms.memsize - tbuffersize + SURFCACHE_SIZE_AT_320X200 + 3289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 0x10000 * 3) < minimum_memory) 3299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 3309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return false; // not enough memory for mode 3319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 3329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return true; 3349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 3359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 3389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 3399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_InitMode 3409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 3419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 3429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint VGA_InitMode (viddef_t *lvid, vmode_t *pcurrentmode) 3439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 3449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vextra_t *pextra; 3459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream pextra = pcurrentmode->pextradata; 3479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (!VGA_FreeAndAllocVidbuffer (lvid, pextra->vidbuffer)) 3499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return -1; // memory alloc failed 3509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (VGA_pcurmode) 3529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_ClearVideoMem (VGA_pcurmode->planar); 3539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// mode 0x13 is the base for all the Mode X-class mode sets 3559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream regs.h.ah = 0; 3569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream regs.h.al = 0x13; 3579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream dos_int86(0x10); 3589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_pagebase = (void *)real2ptr(0xa0000); 3609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->direct = (pixel_t *)VGA_pagebase; 3619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// set additional registers as needed 3639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VideoRegisterSet (pextra->pregset); 3649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_numpages = 1; 3669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->numpages = VGA_numpages; 3679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_width = (lvid->width + 0x1F) & ~0x1F; 3699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_height = lvid->height; 3709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_planar = pcurrentmode->planar; 3719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (VGA_planar) 3729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_rowbytes = lvid->rowbytes / 4; 3739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 3749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_rowbytes = lvid->rowbytes; 3759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_bufferrowbytes = lvid->rowbytes; 3769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->colormap = host_colormap; 3779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->fullbright = 256 - LittleLong (*((int *)lvid->colormap + 2048)); 3789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->maxwarpwidth = WARP_WIDTH; 3809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->maxwarpheight = WARP_HEIGHT; 3819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->conbuffer = lvid->buffer; 3839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->conrowbytes = lvid->rowbytes; 3849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->conwidth = lvid->width; 3859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->conheight = lvid->height; 3869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_pcurmode = pcurrentmode; 3889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_ClearVideoMem (pcurrentmode->planar); 3909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 3919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (_vid_wait_override.value) 3929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 3939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream Cvar_SetValue ("vid_wait", (float)VID_WAIT_VSYNC); 3949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 3959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 3969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 3979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream Cvar_SetValue ("vid_wait", (float)VID_WAIT_NONE); 3989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 3999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream D_InitCaches (vid_surfcache, vid_surfcachesize); 4019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return 1; 4039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 4049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 4079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 4089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_SetPalette 4099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 4109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 4119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_SetPalette(viddef_t *lvid, vmode_t *pcurrentmode, unsigned char *pal) 4129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 4139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int shiftcomponents=2; 4149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i; 4159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream UNUSED(lvid); 4179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream UNUSED(pcurrentmode); 4189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream dos_outportb(0x3c8, 0); 4209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<768 ; i++) 4219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream outportb(0x3c9, pal[i]>>shiftcomponents); 4229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 4239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 4269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 4279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_SwapBuffersCopy 4289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 4299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 4309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_SwapBuffersCopy (viddef_t *lvid, vmode_t *pcurrentmode, 4319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vrect_t *rects) 4329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 4339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream UNUSED(pcurrentmode); 4359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// TODO: can write a dword at a time 4379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// TODO: put in ASM 4389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// TODO: copy only specified rectangles 4399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (VGA_planar) 4409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 4419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // TODO: copy only specified rectangles 4439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_UpdatePlanarScreen (lvid->buffer); 4459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 4469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream else 4479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 4489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream while (rects) 4499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 4509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_UpdateLinearScreen ( 4519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->buffer + rects->x + (rects->y * lvid->rowbytes), 4529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_pagebase + rects->x + (rects->y * VGA_rowbytes), 4539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream rects->width, 4549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream rects->height, 4559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lvid->rowbytes, 4569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_rowbytes); 4579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream rects = rects->pnext; 4599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 4609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 4619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 4629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 4659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 4669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamVGA_SwapBuffers 4679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================ 4689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 4699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid VGA_SwapBuffers (viddef_t *lvid, vmode_t *pcurrentmode, vrect_t *rects) 4709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 4719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream UNUSED(lvid); 4729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (vid_wait.value == VID_WAIT_VSYNC) 4749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_WaitVsync (); 4759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 4769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream VGA_SwapBuffersCopy (lvid, pcurrentmode, rects); 4779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 4789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 479