mirror of
https://git.code.sf.net/p/quake/newtree
synced 2024-11-29 23:32:16 +00:00
642 lines
14 KiB
C
642 lines
14 KiB
C
/*
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vid_3dfxsvga.c
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OpenGL device driver for 3Dfx chipsets running Linux
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1999,2000 Nelson Rush.
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#include "qtypes.h"
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#include "quakedef.h"
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#include "glquake.h"
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#include "sys.h"
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#include "console.h"
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#include "cvar.h"
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#include "sbar.h"
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#include "qendian.h"
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#include "qargs.h"
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//#include "lib_replace.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#ifdef HAVE_DLFCN_H
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# include <dlfcn.h>
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#endif
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#ifndef RTLD_LAZY
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# ifdef DL_LAZY
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# define RTLD_LAZY DL_LAZY
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# else
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# define RTLD_LAZY 0
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# endif
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#endif
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#include <GL/gl.h>
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#include <GL/fxmesa.h>
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#include <glide/sst1vid.h>
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#define WARP_WIDTH 320
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#define WARP_HEIGHT 200
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//unsigned short d_8to16table[256];
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unsigned int d_8to24table[256];
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unsigned char d_15to8table[65536];
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#ifdef HAVE_DLOPEN
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static void *dlhand = NULL;
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#endif
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static fxMesaContext fc = NULL;
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static int scr_width, scr_height;
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static qboolean is8bit = 0;
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int VID_options_items = 0;
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/*-----------------------------------------------------------------------*/
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//int texture_mode = GL_NEAREST;
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//int texture_mode = GL_NEAREST_MIPMAP_NEAREST;
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//int texture_mode = GL_NEAREST_MIPMAP_LINEAR;
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int texture_mode = GL_LINEAR;
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//int texture_mode = GL_LINEAR_MIPMAP_NEAREST;
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//int texture_mode = GL_LINEAR_MIPMAP_LINEAR;
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int texture_extension_number = 1;
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float gldepthmin, gldepthmax;
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const char *gl_vendor;
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const char *gl_renderer;
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const char *gl_version;
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const char *gl_extensions;
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// ARB Multitexture
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int gl_mtex_enum = TEXTURE0_SGIS;
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qboolean gl_arb_mtex = false;
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qboolean gl_mtexable = false;
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/*-----------------------------------------------------------------------*/
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void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
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{
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}
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void D_EndDirectRect (int x, int y, int width, int height)
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{
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}
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void VID_Shutdown(void)
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{
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if (!fc)
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return;
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fxMesaDestroyContext(fc);
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}
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void signal_handler(int sig)
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{
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printf("Received signal %d, exiting...\n", sig);
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Host_Shutdown();
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abort();
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//Sys_Quit();
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exit(0);
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}
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void InitSig(void)
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{
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signal(SIGHUP, signal_handler);
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signal(SIGINT, signal_handler);
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signal(SIGQUIT, signal_handler);
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signal(SIGILL, signal_handler);
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signal(SIGTRAP, signal_handler);
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// signal(SIGIOT, signal_handler);
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signal(SIGBUS, signal_handler);
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// signal(SIGFPE, signal_handler);
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signal(SIGSEGV, signal_handler);
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signal(SIGTERM, signal_handler);
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}
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void VID_ShiftPalette(unsigned char *p)
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{
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// VID_SetPalette(p);
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}
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void VID_SetPalette (unsigned char *palette)
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{
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byte *pal;
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unsigned int r,g,b;
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unsigned int v;
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int r1,g1,b1;
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int k;
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unsigned short i;
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unsigned int *table;
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QFile *f;
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char s[255];
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//#endif
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float dist, bestdist;
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//
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// 8 8 8 encoding
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//
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Con_Printf("Converting 8to24\n");
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pal = palette;
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table = d_8to24table;
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for (i=0 ; i<256 ; i++)
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{
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r = pal[0];
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g = pal[1];
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b = pal[2];
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pal += 3;
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// v = (255<<24) + (r<<16) + (g<<8) + (b<<0);
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// v = (255<<0) + (r<<8) + (g<<16) + (b<<24);
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v = (255<<24) + (r<<0) + (g<<8) + (b<<16);
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*table++ = v;
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}
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d_8to24table[255] = 0; // 255 is transparent
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// JACK: 3D distance calcs - k is last closest, l is the distance.
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{
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static qboolean palflag = false;
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// FIXME: Precalculate this and cache to disk.
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if (palflag)
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return;
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palflag = true;
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}
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COM_FOpenFile("glquake/15to8.pal", &f);
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if (f) {
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Qread(f, d_15to8table, 1<<15);
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Qclose(f);
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} else
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{
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for (i=0; i < (1<<15); i++) {
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/* Maps
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000000000000000
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000000000011111 = Red = 0x1F
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000001111100000 = Blue = 0x03E0
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111110000000000 = Grn = 0x7C00
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*/
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r = ((i & 0x1F) << 3)+4;
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g = ((i & 0x03E0) >> 2)+4;
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b = ((i & 0x7C00) >> 7)+4;
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pal = (unsigned char *)d_8to24table;
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for (v=0,k=0,bestdist=10000.0; v<256; v++,pal+=4) {
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r1 = (int)r - (int)pal[0];
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g1 = (int)g - (int)pal[1];
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b1 = (int)b - (int)pal[2];
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dist = sqrt(((r1*r1)+(g1*g1)+(b1*b1)));
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if (dist < bestdist) {
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k=v;
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bestdist = dist;
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}
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}
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d_15to8table[i]=k;
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}
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snprintf(s, sizeof(s), "%s/glquake", com_gamedir);
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Sys_mkdir (s);
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snprintf(s, sizeof(s), "%s/glquake/15to8.pal", com_gamedir);
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if ((f = Qopen(s, "wb")) != NULL) {
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Qwrite(f, d_15to8table, 1<<15);
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Qclose(f);
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}
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}
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}
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/*
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CheckMultiTextureExtensions
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Check for ARB, SGIS, or EXT multitexture support
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*/
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void
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CheckMultiTextureExtensions ( void )
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{
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Con_Printf ("Checking for multitexture... ");
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if (COM_CheckParm ("-nomtex"))
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{
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Con_Printf ("disabled\n");
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return;
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}
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#ifdef HAVE_DLOPEN
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dlhand = dlopen (NULL, RTLD_LAZY);
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if (dlhand == NULL)
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{
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Con_Printf ("unable to check\n");
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return;
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}
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if (strstr(gl_extensions, "GL_ARB_multitexture "))
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{
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Con_Printf ("GL_ARB_multitexture\n");
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qglMTexCoord2f = (void *)dlsym(dlhand, "glMultiTexCoord2fARB");
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qglSelectTexture = (void *)dlsym(dlhand, "glActiveTextureARB");
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gl_mtex_enum = GL_TEXTURE0_ARB;
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gl_mtexable = true;
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gl_arb_mtex = true;
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} else if (strstr(gl_extensions, "GL_SGIS_multitexture "))
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{
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Con_Printf ("GL_SGIS_multitexture\n");
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qglMTexCoord2f = (void *)dlsym(dlhand, "glMTexCoord2fSGIS");
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qglSelectTexture = (void *)dlsym(dlhand, "glSelectTextureSGIS");
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gl_mtex_enum = TEXTURE0_SGIS;
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gl_mtexable = true;
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gl_arb_mtex = false;
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} else if (strstr(gl_extensions, "GL_EXT_multitexture "))
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{
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Con_Printf ("GL_EXT_multitexture\n");
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qglMTexCoord2f = (void *)dlsym(dlhand, "glMTexCoord2fEXT");
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qglSelectTexture = (void *)dlsym(dlhand, "glSelectTextureEXT");
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gl_mtex_enum = TEXTURE0_SGIS;
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gl_mtexable = true;
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gl_arb_mtex = false;
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} else {
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Con_Printf ("none found\n");
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}
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dlclose(dlhand);
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dlhand = NULL;
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#else
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gl_mtexable = false;
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#endif
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}
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typedef void (GLAPIENTRY *gl3DfxSetDitherModeEXT_FUNC) (GrDitherMode_t mode);
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/*
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===============
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GL_Init
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===============
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*/
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void GL_Init (void)
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{
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gl_vendor = glGetString (GL_VENDOR);
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Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
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gl_renderer = glGetString (GL_RENDERER);
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Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
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gl_version = glGetString (GL_VERSION);
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Con_Printf ("GL_VERSION: %s\n", gl_version);
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gl_extensions = glGetString (GL_EXTENSIONS);
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Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
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CheckMultiTextureExtensions ();
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glClearColor (1,0,0,0);
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glCullFace(GL_FRONT);
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glEnable(GL_TEXTURE_2D);
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glEnable(GL_ALPHA_TEST);
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glAlphaFunc(GL_GREATER, 0.666);
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glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
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glShadeModel (GL_FLAT);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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glEnable (GL_BLEND);
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glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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Con_Printf ("Dithering: ");
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dlhand = dlopen (NULL, RTLD_LAZY);
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if (dlhand == NULL) {
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Con_Printf ("unable to set.\n");
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return;
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}
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if (strstr(gl_extensions, "3DFX_set_dither_mode")) {
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gl3DfxSetDitherModeEXT_FUNC dither_select = NULL;
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dither_select = (void *) dlsym(dlhand, "gl3DfxSetDitherModeEXT");
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if (COM_CheckParm ("-dither_2x2")) {
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dither_select(GR_DITHER_2x2);
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Con_Printf ("2x2.\n");
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} else if (COM_CheckParm ("-dither_4x4")) {
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dither_select(GR_DITHER_4x4);
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Con_Printf ("4x4.\n");
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} else {
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glDisable(GL_DITHER);
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Con_Printf ("disabled.\n");
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}
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}
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dlclose(dlhand);
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dlhand = NULL;
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}
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/*
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=================
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GL_BeginRendering
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=================
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*/
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void GL_BeginRendering (int *x, int *y, int *width, int *height)
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{
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*x = *y = 0;
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*width = scr_width;
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*height = scr_height;
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// if (!wglMakeCurrent( maindc, baseRC ))
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// Sys_Error ("wglMakeCurrent failed");
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// glViewport (*x, *y, *width, *height);
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}
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void GL_EndRendering (void)
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{
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glFlush();
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fxMesaSwapBuffers();
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Sbar_Changed ();
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}
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static int resolutions[][3]={
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{ 320, 200, GR_RESOLUTION_320x200 },
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{ 320, 240, GR_RESOLUTION_320x240 },
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{ 400, 256, GR_RESOLUTION_400x256 },
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{ 400, 300, GR_RESOLUTION_400x300 },
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{ 512, 256, GR_RESOLUTION_512x256 },
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{ 512, 384, GR_RESOLUTION_512x384 },
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{ 640, 200, GR_RESOLUTION_640x200 },
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{ 640, 350, GR_RESOLUTION_640x350 },
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{ 640, 400, GR_RESOLUTION_640x400 },
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{ 640, 480, GR_RESOLUTION_640x480 },
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{ 800, 600, GR_RESOLUTION_800x600 },
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{ 856, 480, GR_RESOLUTION_856x480 },
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{ 960, 720, GR_RESOLUTION_960x720 },
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#ifdef GR_RESOLUTION_1024x768
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{ 1024, 768, GR_RESOLUTION_1024x768 },
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#endif
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#ifdef GR_RESOLUTION_1152x864
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{ 1152, 864, GR_RESOLUTION_1152x864 },
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#endif
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#ifdef GR_RESOLUTION_1280x960
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{ 1280, 960, GR_RESOLUTION_1280x960 },
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#endif
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#ifdef GR_RESOLUTION_1280x1024
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{ 1280, 1024, GR_RESOLUTION_1280x1024 },
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#endif
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#ifdef GR_RESOLUTION_1600x1024
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{ 1600, 1024, GR_RESOLUTION_1600x1024 },
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#endif
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#ifdef GR_RESOLUTION_1600x1200
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{ 1600, 1200, GR_RESOLUTION_1600x1200 },
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#endif
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#ifdef GR_RESOLUTION_1792x1344
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{ 1792, 1344, GR_RESOLUTION_1792x1344 },
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#endif
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#ifdef GR_RESOLUTION_1856x1392
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{ 1856, 1392, GR_RESOLUTION_1856x1392 },
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#endif
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#ifdef GR_RESOLUTION_1920x1440
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{ 1920, 1440, GR_RESOLUTION_1920x1440 },
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#endif
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#ifdef GR_RESOLUTION_2048x1536
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{ 2048, 1536, GR_RESOLUTION_2048x1536 },
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#endif
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#ifdef GR_RESOLUTION_2048x2048
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{ 2048, 2048, GR_RESOLUTION_2048x2048 }
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#endif
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};
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#define NUM_RESOLUTIONS (sizeof(resolutions)/(sizeof(int)*3))
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static int
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findres(int *width, int *height)
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{
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int i;
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for(i=0; i < NUM_RESOLUTIONS; i++) {
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if((*width <= resolutions[i][0]) &&
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(*height <= resolutions[i][1])) {
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*width = resolutions[i][0];
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*height = resolutions[i][1];
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return resolutions[i][2];
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}
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}
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*width = 640;
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*height = 480;
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return GR_RESOLUTION_640x480;
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}
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qboolean VID_Is8bit(void)
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{
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return is8bit;
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}
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typedef void (GLAPIENTRY *glColorTableEXT_FUNC) (GLenum, GLenum, GLsizei,
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GLenum, GLenum, const GLvoid *);
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typedef void (GLAPIENTRY *gl3DfxSetPaletteEXT_FUNC) (GLuint *pal);
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void VID_Init8bitPalette()
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{
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// Check for 8bit Extensions and initialize them.
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int i;
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dlhand = dlopen (NULL, RTLD_LAZY);
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Con_Printf ("8-bit GL extensions: ");
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if (dlhand == NULL) {
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Con_Printf ("unable to check.\n");
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return;
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}
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if (COM_CheckParm("-no8bit")) {
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Con_Printf("disabled.\n");
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return;
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}
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if (strstr(gl_extensions, "3DFX_set_global_palette")) {
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char *oldpal;
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GLubyte table[256][4];
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gl3DfxSetPaletteEXT_FUNC load_texture = NULL;
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Con_Printf("3DFX_set_global_palette.\n");
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load_texture = (void *) dlsym(dlhand, "gl3DfxSetPaletteEXT");
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glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
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oldpal = (char *) d_8to24table; //d_8to24table3dfx;
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for (i=0;i<256;i++) {
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table[i][2] = *oldpal++;
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table[i][1] = *oldpal++;
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table[i][0] = *oldpal++;
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table[i][3] = 255;
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oldpal++;
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}
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load_texture((GLuint *)table);
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is8bit = true;
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} else if (strstr(gl_extensions, "GL_EXT_shared_texture_palette")) {
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char thePalette[256*3];
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char *oldPalette, *newPalette;
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glColorTableEXT_FUNC load_texture = NULL;
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Con_Printf("GL_EXT_shared.\n");
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load_texture = (void *) dlsym(dlhand, "glColorTableEXT");
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glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
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oldPalette = (char *) d_8to24table; //d_8to24table3dfx;
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newPalette = thePalette;
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for (i=0;i<256;i++) {
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*newPalette++ = *oldPalette++;
|
|
*newPalette++ = *oldPalette++;
|
|
*newPalette++ = *oldPalette++;
|
|
oldPalette++;
|
|
}
|
|
load_texture(GL_SHARED_TEXTURE_PALETTE_EXT, GL_RGB, 256, GL_RGB, GL_UNSIGNED_BYTE, (void *) thePalette);
|
|
is8bit = true;
|
|
}
|
|
|
|
dlclose(dlhand);
|
|
dlhand = NULL;
|
|
Con_Printf ("not found.\n");
|
|
}
|
|
|
|
void VID_Init(unsigned char *palette)
|
|
{
|
|
int i;
|
|
GLint attribs[32];
|
|
char gldir[MAX_OSPATH];
|
|
int width = 640, height = 480;
|
|
|
|
vid.maxwarpwidth = WARP_WIDTH;
|
|
vid.maxwarpheight = WARP_HEIGHT;
|
|
vid.colormap = host_colormap;
|
|
vid.fullbright = 256 - LittleLong (*((int *)vid.colormap + 2048));
|
|
|
|
// interpret command-line params
|
|
|
|
// set vid parameters
|
|
attribs[0] = FXMESA_DOUBLEBUFFER;
|
|
attribs[1] = FXMESA_ALPHA_SIZE;
|
|
attribs[2] = 1;
|
|
attribs[3] = FXMESA_DEPTH_SIZE;
|
|
attribs[4] = 1;
|
|
attribs[5] = FXMESA_NONE;
|
|
|
|
if ((i = COM_CheckParm("-width")) != 0)
|
|
width = atoi(com_argv[i+1]);
|
|
if ((i = COM_CheckParm("-height")) != 0)
|
|
height = atoi(com_argv[i+1]);
|
|
|
|
if ((i = COM_CheckParm("-conwidth")) != 0)
|
|
vid.conwidth = atoi(com_argv[i+1]);
|
|
else
|
|
vid.conwidth = 640;
|
|
|
|
vid.conwidth &= 0xfff8; // make it a multiple of eight
|
|
|
|
if (vid.conwidth < 320)
|
|
vid.conwidth = 320;
|
|
|
|
// pick a conheight that matches with correct aspect
|
|
vid.conheight = vid.conwidth*3 / 4;
|
|
|
|
if ((i = COM_CheckParm("-conheight")) != 0)
|
|
vid.conheight = atoi(com_argv[i+1]);
|
|
if (vid.conheight < 200)
|
|
vid.conheight = 200;
|
|
|
|
fc = fxMesaCreateContext(0, findres(&width, &height), GR_REFRESH_75Hz,
|
|
attribs);
|
|
if (!fc)
|
|
Sys_Error("Unable to create 3DFX context.\n");
|
|
|
|
scr_width = width;
|
|
scr_height = height;
|
|
|
|
fxMesaMakeCurrent(fc);
|
|
|
|
if (vid.conheight > height)
|
|
vid.conheight = height;
|
|
if (vid.conwidth > width)
|
|
vid.conwidth = width;
|
|
vid.width = vid.conwidth;
|
|
vid.height = vid.conheight;
|
|
|
|
vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
|
|
vid.numpages = 2;
|
|
|
|
InitSig(); // trap evil signals
|
|
|
|
GL_Init();
|
|
|
|
snprintf(gldir, sizeof(gldir), "%s/glquake", com_gamedir);
|
|
Sys_mkdir (gldir);
|
|
|
|
VID_SetPalette(palette);
|
|
|
|
// Check for 3DFX Extensions and initialize them.
|
|
VID_Init8bitPalette();
|
|
|
|
Con_Printf ("Video mode %dx%d initialized.\n", width, height);
|
|
|
|
vid.recalc_refdef = 1; // force a surface cache flush
|
|
}
|
|
|
|
void VID_ExtraOptionDraw(unsigned int options_draw_cursor)
|
|
{
|
|
/* Port specific Options menu entrys */
|
|
}
|
|
|
|
void VID_ExtraOptionCmd(int option_cursor)
|
|
{
|
|
/*
|
|
switch(option_cursor)
|
|
{
|
|
case 12: // Always start with 12
|
|
break;
|
|
}
|
|
*/
|
|
}
|
|
void VID_InitCvars ()
|
|
{
|
|
}
|
|
|
|
void
|
|
VID_LockBuffer ( void )
|
|
{
|
|
}
|
|
|
|
void
|
|
VID_UnlockBuffer ( void )
|
|
{
|
|
}
|
|
|
|
void VID_SetCaption (char *text)
|
|
{
|
|
}
|