/* 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 #endif #include #include #include #include #include #ifdef HAVE_DLFCN_H # include #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) { }