mirror of
https://git.code.sf.net/p/quake/newtree
synced 2024-11-14 00:21:27 +00:00
32b13fb303
gl_ztrick - here's the hat, but no rabbit considering that a buggy driver can make gl_ztrick into a sort of cheat if you can stand the flicker, it's gone. gl_finish was already a zombie Cvar so I just removed its definition.
687 lines
15 KiB
C
687 lines
15 KiB
C
/*
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vid_glx.c
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OpenGL GLX video driver
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
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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 <values.h>
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#include "qtypes.h"
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#include "quakedef.h"
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#include "qendian.h"
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#include "glquake.h"
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#include "cvar.h"
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#include "qargs.h"
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#include "console.h"
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#include "keys.h"
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#include "menu.h"
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#include "sys.h"
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#include "draw.h"
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#include "sbar.h"
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#include "context_x11.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.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/glx.h>
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#include <X11/keysym.h>
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#include <X11/cursorfont.h>
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#ifdef HAVE_DGA
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# include <X11/extensions/xf86dga.h>
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#endif
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#ifdef HAVE_VIDMODE
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# include <X11/extensions/xf86vmode.h>
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#endif
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#include "dga_check.h"
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#ifdef XMESA
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# include <GL/xmesa.h>
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#endif
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#define WARP_WIDTH 320
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#define WARP_HEIGHT 200
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static qboolean vid_initialized = false;
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static int screen;
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Window x_win;
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static GLXContext ctx = NULL;
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#define X_MASK (VisibilityChangeMask | StructureNotifyMask)
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unsigned short d_8to16table[256];
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unsigned d_8to24table[256];
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unsigned char d_15to8table[65536];
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cvar_t *vid_mode;
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cvar_t *vid_fullscreen;
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extern cvar_t *gl_triplebuffer;
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extern cvar_t *in_dga_mouseaccel;
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#ifdef HAVE_VIDMODE
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static XF86VidModeModeInfo **vidmodes;
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static int nummodes, hasvidmode = 0;
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#endif
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#ifdef HAVE_DGA
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static int hasdgavideo = 0;
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static int hasdga = 0;
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#endif
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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 GLboolean (*QF_XMesaSetFXmode)(GLint mode) = NULL;
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int scr_width, scr_height;
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#if defined(XMESA) || defined(HAVE_DGA)
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int VID_options_items = 2;
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#else
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int VID_options_items = 1;
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#endif
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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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qboolean is8bit = false;
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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
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VID_Shutdown(void)
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{
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if (!vid_initialized)
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return;
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Con_Printf("VID_Shutdown\n");
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glXDestroyContext(x_disp, ctx);
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#ifdef HAVE_VIDMODE
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if (hasvidmode) {
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int i;
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XF86VidModeSwitchToMode (x_disp, DefaultScreen (x_disp),
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vidmodes[0]);
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for (i = 0; i < nummodes; i++) {
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if (vidmodes[i]->private) XFree(vidmodes[i]->private);
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}
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XFree(vidmodes);
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}
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#endif
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#ifdef HAVE_DLOPEN
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if (dlhand) {
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dlclose(dlhand);
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dlhand = NULL;
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}
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#endif
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x11_close_display();
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}
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static 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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Sys_Quit();
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exit(sig);
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}
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static 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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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 r,g,b;
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unsigned 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 *table;
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FILE *f;
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char s[255];
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float dist, bestdist;
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static qboolean palflag = false;
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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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// 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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COM_FOpenFile("glquake/15to8.pal", &f);
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if (f) {
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fread(d_15to8table, 1<<15, 1, f);
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fclose(f);
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} else {
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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 = fopen(s, "wb")) != NULL) {
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fwrite(d_15to8table, 1<<15, 1, f);
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fclose(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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/*
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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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// Con_Printf ("%s %s\n", gl_renderer, gl_version);
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CheckMultiTextureExtensions ();
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glClearColor (0,0,0,0);
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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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/* glShadeMode(GL_SMOOTH) should look better then GL_FLAT but
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I don't know if it looks any better, sure is slower
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glShadeModel (GL_SMOOTH);
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*/
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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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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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}
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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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glXSwapBuffers(x_disp, x_win);
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Sbar_Changed ();
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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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#ifdef GL_EXT_SHARED
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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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char thePalette[256*3];
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char *oldPalette, *newPalette;
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if (strstr(gl_extensions, "GL_EXT_shared_texture_palette") == NULL)
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return;
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Con_SafePrintf("8-bit GL extensions enabled.\n");
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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++;
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*newPalette++ = *oldPalette++;
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*newPalette++ = *oldPalette++;
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oldPalette++;
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}
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glColorTableEXT(GL_SHARED_TEXTURE_PALETTE_EXT, GL_RGB, 256, GL_RGB, GL_UNSIGNED_BYTE, (void *) thePalette);
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is8bit = true;
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}
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#else
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void VID_Init8bitPalette(void)
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{
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}
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#endif
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void VID_Init(unsigned char *palette)
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{
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int i;
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int attrib[] = {
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GLX_RGBA,
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GLX_RED_SIZE, 1,
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GLX_GREEN_SIZE, 1,
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GLX_BLUE_SIZE, 1,
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GLX_DOUBLEBUFFER,
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GLX_DEPTH_SIZE, 1,
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None
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};
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char gldir[MAX_OSPATH];
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int width = 640, height = 480;
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XSetWindowAttributes attr;
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unsigned long mask;
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Window root;
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XVisualInfo *visinfo;
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vid_mode = Cvar_Get ("vid_mode","0",0,"None");
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vid_fullscreen = Cvar_Get ("vid_fullscreen","0",0,"None");
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#ifdef HAVE_DGA
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in_dga_mouseaccel = Cvar_Get("vid_dga_mouseaccel","1",CVAR_ARCHIVE,
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"None");
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#endif
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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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*/
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/* Set vid parameters */
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if ((i = COM_CheckParm("-width")) != 0)
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width = atoi(com_argv[i+1]);
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if ((i = COM_CheckParm("-height")) != 0)
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height = atoi(com_argv[i+1]);
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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 = width;
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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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i = COM_CheckParm ("-conheight");
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if ( i != 0 ) // Set console height, but no smaller than 200 px
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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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x11_open_display();
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screen = DefaultScreen(x_disp);
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root = RootWindow(x_disp, screen);
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visinfo = glXChooseVisual(x_disp, screen, attrib);
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if (!visinfo) {
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fprintf(stderr, "Error couldn't get an RGB, Double-buffered, Depth visual\n");
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exit(1);
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}
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#ifdef HAVE_DGA
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{
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int maj_ver;
|
|
|
|
hasdga = VID_CheckDGA(x_disp, &maj_ver, NULL, &hasdgavideo);
|
|
if (!hasdga || maj_ver < 1) {
|
|
hasdga = hasdgavideo = 0;
|
|
}
|
|
}
|
|
Con_SafePrintf ("hasdga = %i\nhasdgavideo = %i\n", hasdga, hasdgavideo);
|
|
#endif
|
|
#ifdef HAVE_VIDMODE
|
|
hasvidmode = VID_CheckVMode(x_disp, NULL, NULL);
|
|
if (hasvidmode) {
|
|
if (! XF86VidModeGetAllModeLines(x_disp, DefaultScreen(x_disp),
|
|
&nummodes, &vidmodes)
|
|
|| nummodes <= 0) {
|
|
hasvidmode = 0;
|
|
}
|
|
}
|
|
Con_SafePrintf ("hasvidmode = %i\nnummodes = %i\n", hasvidmode, nummodes);
|
|
#endif
|
|
#ifdef HAVE_DLOPEN
|
|
dlhand = dlopen(NULL, RTLD_LAZY);
|
|
if (dlhand) {
|
|
QF_XMesaSetFXmode = dlsym(dlhand, "XMesaSetFXmode");
|
|
if (!QF_XMesaSetFXmode) {
|
|
QF_XMesaSetFXmode = dlsym(dlhand, "_XMesaSetFXmode");
|
|
}
|
|
} else {
|
|
QF_XMesaSetFXmode = NULL;
|
|
}
|
|
#else
|
|
#ifdef XMESA
|
|
QF_XMesaSetFXmode = XMesaSetFXmode;
|
|
#endif
|
|
#endif
|
|
if (QF_XMesaSetFXmode) {
|
|
#ifdef XMESA
|
|
const char *str = getenv("MESA_GLX_FX");
|
|
if (str != NULL && *str != 'd') {
|
|
if (tolower(*str) == 'w') {
|
|
Cvar_Set (vid_fullscreen, "0");
|
|
} else {
|
|
Cvar_Set (vid_fullscreen, "1");
|
|
}
|
|
}
|
|
#endif
|
|
/* Glide uses DGA internally, so we don't want to
|
|
mess with it. */
|
|
// hasdga = 0;
|
|
}
|
|
|
|
/* window attributes */
|
|
attr.background_pixel = 0;
|
|
attr.border_pixel = 0;
|
|
attr.colormap = XCreateColormap(x_disp, root, visinfo->visual, AllocNone);
|
|
attr.event_mask = X_MASK;
|
|
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
|
|
|
|
#ifdef HAVE_VIDMODE
|
|
if (hasvidmode && vid_fullscreen->value) {
|
|
int smallest_mode=0, x=MAXINT, y=MAXINT;
|
|
|
|
attr.override_redirect=1;
|
|
mask|=CWOverrideRedirect;
|
|
|
|
// FIXME: does this depend on mode line order in XF86Config?
|
|
for (i=0; i<nummodes; i++) {
|
|
if (x>vidmodes[i]->hdisplay || y>vidmodes[i]->vdisplay) {
|
|
smallest_mode=i;
|
|
x=vidmodes[i]->hdisplay;
|
|
y=vidmodes[i]->vdisplay;
|
|
}
|
|
printf("%dx%d\n",vidmodes[i]->hdisplay,vidmodes[i]->vdisplay);
|
|
}
|
|
// chose the smallest mode that our window fits into;
|
|
for (i=smallest_mode;
|
|
i!=(smallest_mode+1)%nummodes;
|
|
i=(i?i-1:nummodes-1)) {
|
|
if (vidmodes[i]->hdisplay>=width
|
|
&& vidmodes[i]->vdisplay>=height) {
|
|
XF86VidModeSwitchToMode (x_disp, DefaultScreen (x_disp),
|
|
vidmodes[i]);
|
|
break;
|
|
}
|
|
}
|
|
XF86VidModeSetViewPort(x_disp, DefaultScreen (x_disp), 0, 0);
|
|
_windowed_mouse = Cvar_Get ("_windowed_mouse","1",CVAR_ARCHIVE|CVAR_ROM,"None");
|
|
} else
|
|
#endif
|
|
_windowed_mouse = Cvar_Get ("_windowed_mouse","0",CVAR_ARCHIVE,"None");
|
|
|
|
x_win = XCreateWindow(x_disp, root, 0, 0, width, height,
|
|
0, visinfo->depth, InputOutput,
|
|
visinfo->visual, mask, &attr);
|
|
XMapWindow(x_disp, x_win);
|
|
#ifdef HAVE_VIDMODE
|
|
if (hasvidmode && vid_fullscreen->value) {
|
|
XRaiseWindow(x_disp, x_win);
|
|
XGrabKeyboard(x_disp, x_win, 1, GrabModeAsync, GrabModeAsync,
|
|
CurrentTime);
|
|
}
|
|
#endif
|
|
|
|
XSync(x_disp, 0);
|
|
|
|
ctx = glXCreateContext(x_disp, visinfo, NULL, True);
|
|
|
|
glXMakeCurrent(x_disp, x_win, ctx);
|
|
|
|
scr_width = width;
|
|
scr_height = height;
|
|
|
|
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);
|
|
|
|
GL_CheckGamma (palette);
|
|
VID_SetPalette (palette);
|
|
|
|
// Check for 3DFX Extensions and initialize them.
|
|
VID_Init8bitPalette();
|
|
|
|
Con_SafePrintf ("Video mode %dx%d initialized.\n",
|
|
width, height);
|
|
|
|
vid_initialized = true;
|
|
|
|
vid.recalc_refdef = 1; // force a surface cache flush
|
|
}
|
|
|
|
void VID_InitCvars()
|
|
{
|
|
gl_triplebuffer = Cvar_Get("gl_triplebuffer","1",CVAR_ARCHIVE,"None");
|
|
}
|
|
|
|
void
|
|
VID_LockBuffer ( void )
|
|
{
|
|
}
|
|
|
|
void
|
|
VID_UnlockBuffer ( void )
|
|
{
|
|
}
|
|
|