/* 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 #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 "qargs.h" #include "qendian.h" #include "quakedef.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_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) { }