newtree/source/vid_glx.c

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/*
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vid_glx.c
OpenGL GLX video driver
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
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
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# include "config.h"
#endif
#include <string.h>
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#include <GL/glx.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
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#ifdef HAVE_DGA
# include <X11/extensions/xf86dga.h>
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#endif
#include "va.h"
#include "console.h"
#include "glquake.h"
#include "quakefs.h"
#include "input.h"
#include "sbar.h"
#include "context_x11.h"
#include "quakedef.h"
#include "qendian.h"
#include "qargs.h"
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#define WARP_WIDTH 320
#define WARP_HEIGHT 200
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static qboolean vid_initialized = false;
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static GLXContext ctx = NULL;
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extern void GL_Init_Common (void);
extern void VID_Init8bitPalette (void);
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/*-----------------------------------------------------------------------*/
const char *gl_vendor;
const char *gl_renderer;
const char *gl_version;
const char *gl_extensions;
void
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VID_Shutdown (void)
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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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x11_restore_vidmode ();
x11_close_display ();
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}
#if 0
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);
Sys_Quit ();
exit (sig);
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}
static void
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InitSig (void)
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{
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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);
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}
#endif
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/*
===============
GL_Init
===============
*/
void
GL_Init (void)
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{
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GL_Init_Common ();
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}
void
GL_EndRendering (void)
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{
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glFlush ();
glXSwapBuffers (x_disp, x_win);
Sbar_Changed ();
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}
void
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VID_Init (unsigned char *palette)
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{
int i;
int attrib[] = {
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GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_DEPTH_SIZE, 1,
None
};
VID_GetWindowSize (640, 480);
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vid.maxwarpwidth = WARP_WIDTH;
vid.maxwarpheight = WARP_HEIGHT;
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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if ((i = COM_CheckParm ("-conwidth")))
vid.conwidth = atoi(com_argv[i+1]);
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else
vid.conwidth = scr_width;
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vid.conwidth &= 0xfff8; // make it a multiple of eight
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vid.conwidth = max (vid.conwidth, 320);
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// pick a conheight that matches with correct aspect
vid.conheight = vid.conwidth * 3 / 4;
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if ((i = COM_CheckParm ("-conheight"))) // conheight no smaller than 200px
vid.conheight = atoi (com_argv[i+1]);
vid.conheight = max (vid.conheight, 200);
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x11_open_display ();
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x_visinfo = glXChooseVisual (x_disp, x_screen, attrib);
if (!x_visinfo) {
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fprintf (stderr, "Error couldn't get an RGB, Double-buffered, Depth visual\n");
exit (1);
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}
x_vis = x_visinfo->visual;
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x11_set_vidmode (scr_width, scr_height);
x11_create_window (scr_width, scr_height);
/* Invisible cursor */
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x11_create_null_cursor ();
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x11_grab_keyboard ();
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XSync (x_disp, 0);
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ctx = glXCreateContext (x_disp, x_visinfo, NULL, True);
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glXMakeCurrent (x_disp, x_win, ctx);
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vid.height = vid.conheight = min (vid.conheight, scr_height);
vid.width = vid.conwidth = min (vid.conwidth, scr_width);
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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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GL_CheckBrightness (palette);
VID_SetPalette (palette);
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// Check for 8-bit extension and initialize if present
VID_Init8bitPalette ();
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Con_Printf ("Video mode %dx%d initialized.\n", scr_width, scr_height);
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vid_initialized = true;
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vid.recalc_refdef = 1; // force a surface cache flush
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}
void
VID_Init_Cvars ()
{
x11_Init_Cvars();
}
void
VID_SetCaption (char *text)
{
if (text && *text) {
char *temp = strdup (text);
x11_set_caption (va ("%s %s: %s", PROGRAM, VERSION, temp));
free (temp);
} else {
x11_set_caption (va ("%s %s", PROGRAM, VERSION));
}
}