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quakeforge/nq/source/vid_3dfxsvga.c

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/*
vid_3dfxsvga.c
OpenGL device driver for 3Dfx chipsets running Linux
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1999,2000 Nelson Rush.
Copyright (C) 1999,2000 contributors of the QuakeForge project
Please see the file "AUTHORS" for a list of contributors
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include <stdlib.h>
#include <GL/gl.h>
#include <GL/fxmesa.h>
#include <glide/sst1vid.h>
#include <sys/signal.h>
#ifdef HAVE_DLFCN_H
# include <dlfcn.h>
#endif
#ifndef RTLD_LAZY
# ifdef DL_LAZY
# define RTLD_LAZY DL_LAZY
# else
# define RTLD_LAZY 0
# endif
#endif
#include "console.h"
#include "glquake.h"
#include "host.h"
#include "qargs.h"
#include "qendian.h"
#include "quakefs.h"
#include "sbar.h"
#include "sys.h"
#include "va.h"
#define WARP_WIDTH 320
#define WARP_HEIGHT 200
static fxMesaContext fc = NULL;
static void *dlhand;
int VID_options_items = 0;
extern void GL_Init_Common(void);
extern void VID_Init8bitPalette(void);
/*-----------------------------------------------------------------------*/
void
VID_Shutdown(void)
{
if (!fc)
return;
fxMesaDestroyContext(fc);
}
void
signal_handler(int sig)
{
printf("Received signal %d, exiting...\n", sig);
Host_Shutdown();
abort();
// Sys_Quit();
exit(0);
}
void
InitSig(void)
{
signal(SIGHUP, signal_handler);
signal(SIGINT, signal_handler);
signal(SIGQUIT, signal_handler);
signal(SIGILL, signal_handler);
signal(SIGTRAP, signal_handler);
// signal(SIGIOT, signal_handler);
signal(SIGBUS, signal_handler);
// signal(SIGFPE, signal_handler);
signal(SIGSEGV, signal_handler);
signal(SIGTERM, signal_handler);
}
typedef void (GLAPIENTRY *gl3DfxSetDitherModeEXT_FUNC) (GrDitherMode_t mode);
/*
===============
GL_Init
===============
*/
void
GL_Init (void)
{
GL_Init_Common ();
Con_Printf ("Dithering: ");
dlhand = dlopen (NULL, RTLD_LAZY);
if (dlhand == NULL) {
Con_Printf ("unable to set.\n");
return;
}
if (strstr(gl_extensions, "3DFX_set_dither_mode")) {
gl3DfxSetDitherModeEXT_FUNC dither_select = NULL;
dither_select = (void *) dlsym(dlhand, "gl3DfxSetDitherModeEXT");
if (COM_CheckParm ("-dither_2x2")) {
dither_select(GR_DITHER_2x2);
Con_Printf ("2x2.\n");
} else if (COM_CheckParm ("-dither_4x4")) {
dither_select(GR_DITHER_4x4);
Con_Printf ("4x4.\n");
} else {
glDisable(GL_DITHER);
Con_Printf ("disabled.\n");
}
}
dlclose(dlhand);
dlhand = NULL;
}
void
GL_EndRendering (void)
{
glFlush();
fxMesaSwapBuffers();
Sbar_Changed ();
}
static int resolutions[][3]={
{ 320, 200, GR_RESOLUTION_320x200 },
{ 320, 240, GR_RESOLUTION_320x240 },
{ 400, 256, GR_RESOLUTION_400x256 },
{ 400, 300, GR_RESOLUTION_400x300 },
{ 512, 256, GR_RESOLUTION_512x256 },
{ 512, 384, GR_RESOLUTION_512x384 },
{ 640, 200, GR_RESOLUTION_640x200 },
{ 640, 350, GR_RESOLUTION_640x350 },
{ 640, 400, GR_RESOLUTION_640x400 },
{ 640, 480, GR_RESOLUTION_640x480 },
{ 800, 600, GR_RESOLUTION_800x600 },
{ 856, 480, GR_RESOLUTION_856x480 },
{ 960, 720, GR_RESOLUTION_960x720 },
#ifdef GR_RESOLUTION_1024x768
{ 1024, 768, GR_RESOLUTION_1024x768 },
#endif
#ifdef GR_RESOLUTION_1152x864
{ 1152, 864, GR_RESOLUTION_1152x864 },
#endif
#ifdef GR_RESOLUTION_1280x960
{ 1280, 960, GR_RESOLUTION_1280x960 },
#endif
#ifdef GR_RESOLUTION_1280x1024
{ 1280, 1024, GR_RESOLUTION_1280x1024 },
#endif
#ifdef GR_RESOLUTION_1600x1024
{ 1600, 1024, GR_RESOLUTION_1600x1024 },
#endif
#ifdef GR_RESOLUTION_1600x1200
{ 1600, 1200, GR_RESOLUTION_1600x1200 },
#endif
#ifdef GR_RESOLUTION_1792x1344
{ 1792, 1344, GR_RESOLUTION_1792x1344 },
#endif
#ifdef GR_RESOLUTION_1856x1392
{ 1856, 1392, GR_RESOLUTION_1856x1392 },
#endif
#ifdef GR_RESOLUTION_1920x1440
{ 1920, 1440, GR_RESOLUTION_1920x1440 },
#endif
#ifdef GR_RESOLUTION_2048x1536
{ 2048, 1536, GR_RESOLUTION_2048x1536 },
#endif
#ifdef GR_RESOLUTION_2048x2048
{ 2048, 2048, GR_RESOLUTION_2048x2048 }
#endif
};
#define NUM_RESOLUTIONS (sizeof(resolutions)/(sizeof(int)*3))
static int
findres(int *width, int *height)
{
int i;
for(i=0; i < NUM_RESOLUTIONS; i++) {
if((*width <= resolutions[i][0]) &&
(*height <= resolutions[i][1])) {
*width = resolutions[i][0];
*height = resolutions[i][1];
return resolutions[i][2];
}
}
*width = 640;
*height = 480;
return GR_RESOLUTION_640x480;
}
typedef void (GLAPIENTRY *glColorTableEXT_FUNC) (GLenum, GLenum, GLsizei,
GLenum, GLenum, const GLvoid *);
typedef void (GLAPIENTRY *gl3DfxSetPaletteEXT_FUNC) (GLuint *pal);
void
VID_Init(unsigned char *palette)
{
int i;
GLint attribs[32];
VID_GetWindowSize (640, 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("-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(&scr_width, &scr_height),
GR_REFRESH_75Hz, attribs);
if (!fc)
Sys_Error("Unable to create 3DFX context.\n");
fxMesaMakeCurrent(fc);
if (vid.conheight > scr_height)
vid.conheight = scr_height;
if (vid.conwidth > scr_width)
vid.conwidth = scr_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();
VID_SetPalette(palette);
// Check for 3DFX Extensions and initialize them.
VID_Init8bitPalette();
Con_Printf ("Video mode %dx%d initialized.\n", scr_width, scr_height);
vid.recalc_refdef = 1; // force a surface cache flush
}
void
VID_Init_Cvars()
{
}
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_SetCaption (char *text)
{
}
void VID_HandlePause (qboolean paused)
{
}
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