mirror of https://git.code.sf.net/p/quake/newtree
335 lines
7.0 KiB
C
335 lines
7.0 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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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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#include <sys/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 "console.h"
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#include "glquake.h"
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#include "qargs.h"
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#include "qendian.h"
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#include "quakedef.h"
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#include "quakefs.h"
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#include "sbar.h"
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#include "sys.h"
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#include "va.h"
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#define WARP_WIDTH 320
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#define WARP_HEIGHT 200
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static fxMesaContext fc = NULL;
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static void *dlhand;
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int VID_options_items = 0;
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extern void GL_Init_Common(void);
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extern void VID_Init8bitPalette(void);
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/*-----------------------------------------------------------------------*/
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void
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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
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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
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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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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
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GL_Init (void)
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{
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GL_Init_Common ();
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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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void
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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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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
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VID_Init(unsigned char *palette)
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{
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int i;
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GLint attribs[32];
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VID_GetWindowSize (640, 480);
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vid.maxwarpwidth = WARP_WIDTH;
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vid.maxwarpheight = WARP_HEIGHT;
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vid.colormap = host_colormap;
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vid.fullbright = 256 - LittleLong (*((int *)vid.colormap + 2048));
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// interpret command-line params
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// set vid parameters
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attribs[0] = FXMESA_DOUBLEBUFFER;
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attribs[1] = FXMESA_ALPHA_SIZE;
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attribs[2] = 1;
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attribs[3] = FXMESA_DEPTH_SIZE;
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attribs[4] = 1;
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attribs[5] = FXMESA_NONE;
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if ((i = COM_CheckParm("-conwidth")) != 0)
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vid.conwidth = atoi(com_argv[i+1]);
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else
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vid.conwidth = 640;
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vid.conwidth &= 0xfff8; // make it a multiple of eight
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if (vid.conwidth < 320)
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vid.conwidth = 320;
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// pick a conheight that matches with correct aspect
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vid.conheight = vid.conwidth*3 / 4;
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if ((i = COM_CheckParm("-conheight")) != 0)
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vid.conheight = atoi(com_argv[i+1]);
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if (vid.conheight < 200)
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vid.conheight = 200;
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fc = fxMesaCreateContext(0, findres(&scr_width, &scr_height),
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GR_REFRESH_75Hz, attribs);
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if (!fc)
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Sys_Error("Unable to create 3DFX context.\n");
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fxMesaMakeCurrent(fc);
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if (vid.conheight > scr_height)
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vid.conheight = scr_height;
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if (vid.conwidth > scr_width)
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vid.conwidth = scr_width;
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vid.width = vid.conwidth;
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vid.height = vid.conheight;
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vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
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vid.numpages = 2;
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InitSig(); // trap evil signals
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GL_Init();
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VID_SetPalette(palette);
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// Check for 3DFX Extensions and initialize them.
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VID_Init8bitPalette();
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Con_Printf ("Video mode %dx%d initialized.\n", scr_width, scr_height);
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vid.recalc_refdef = 1; // force a surface cache flush
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}
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void
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VID_Init_Cvars()
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{
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}
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void
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VID_ExtraOptionDraw(unsigned int options_draw_cursor)
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{
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/* Port specific Options menu entrys */
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}
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void
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VID_ExtraOptionCmd(int option_cursor)
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{
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/*
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switch(option_cursor)
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{
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case 12: // Always start with 12
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break;
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}
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*/
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}
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void
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VID_SetCaption (char *text)
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{
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}
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