mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-17 18:30:58 +00:00
287 lines
6.4 KiB
C
287 lines
6.4 KiB
C
/*
|
|
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
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
static __attribute__ ((unused)) const char rcsid[] =
|
|
"$Id$";
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include <string.h>
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif
|
|
#ifdef HAVE_DLOPEN
|
|
# include <dlfcn.h>
|
|
#endif
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/keysym.h>
|
|
#include <X11/cursorfont.h>
|
|
|
|
#ifdef HAVE_DGA
|
|
# include <X11/extensions/xf86dga.h>
|
|
#endif
|
|
|
|
#include "QF/cmd.h"
|
|
#include "QF/console.h"
|
|
#include "QF/cvar.h"
|
|
#include "QF/input.h"
|
|
#include "QF/qargs.h"
|
|
#include "QF/qendian.h"
|
|
#include "QF/sys.h"
|
|
#include "QF/va.h"
|
|
#include "QF/vid.h"
|
|
#include "QF/GL/funcs.h"
|
|
#include "QF/GL/qf_vid.h"
|
|
|
|
#include "compat.h"
|
|
#include "context_x11.h"
|
|
#include "r_cvar.h"
|
|
#include "sbar.h"
|
|
|
|
#define WARP_WIDTH 320
|
|
#define WARP_HEIGHT 200
|
|
|
|
// GLXContext is a pointer to opaque data
|
|
typedef struct __GLXcontextRec *GLXContext;
|
|
|
|
#define GLX_RGBA 4 // true if RGBA mode
|
|
#define GLX_DOUBLEBUFFER 5 // double buffering supported
|
|
#define GLX_RED_SIZE 8 // number of red component bits
|
|
#define GLX_GREEN_SIZE 9 // number of green component bits
|
|
#define GLX_BLUE_SIZE 10 // number of blue component bits
|
|
#define GLX_DEPTH_SIZE 12 // number of depth bits
|
|
|
|
static GLXContext ctx = NULL;
|
|
typedef XID GLXDrawable;
|
|
|
|
void (* qfglXSwapBuffers) (Display *dpy, GLXDrawable drawable);
|
|
XVisualInfo* (* qfglXChooseVisual) (Display *dpy, int screen, int *attribList);
|
|
GLXContext (* qfglXCreateContext) (Display *dpy, XVisualInfo *vis,
|
|
GLXContext shareList, Bool direct);
|
|
Bool (* qfglXMakeCurrent) (Display *dpy, GLXDrawable drawable, GLXContext ctx);
|
|
|
|
|
|
// ============================================================================
|
|
|
|
static int use_gl_procaddress = 1;
|
|
|
|
#if defined(HAVE_DLOPEN)
|
|
|
|
void * (* glGetProcAddress) (const char *symbol) = NULL;
|
|
|
|
void *
|
|
QFGL_GetProcAddress (void *handle, const char *name)
|
|
{
|
|
void *glfunc = NULL;
|
|
|
|
if (use_gl_procaddress && glGetProcAddress)
|
|
glfunc = glGetProcAddress (name);
|
|
if (!glfunc)
|
|
glfunc = dlsym (handle, name);
|
|
return glfunc;
|
|
}
|
|
|
|
void *
|
|
QFGL_LoadLibrary (void)
|
|
{
|
|
void *handle;
|
|
|
|
if (!(handle = dlopen (gl_driver->string, RTLD_NOW))) {
|
|
Sys_Error ("Couldn't load OpenGL library %s: %s", gl_driver->string,
|
|
dlerror ());
|
|
}
|
|
glGetProcAddress = dlsym (handle, "glXGetProcAddressARB");
|
|
return handle;
|
|
}
|
|
#else
|
|
|
|
# error "Cannot load libraries: %s was not configured with DSO support"
|
|
|
|
// the following is to avoid other compiler errors
|
|
void *
|
|
QFGL_GetProcAddress (void *handle, const char *name)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void *
|
|
QFGL_LoadLibrary (void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif // HAVE_DLOPEN
|
|
|
|
|
|
void
|
|
VID_Shutdown (void)
|
|
{
|
|
if (!vid.initialized)
|
|
return;
|
|
|
|
Con_Printf ("VID_Shutdown\n");
|
|
|
|
X11_RestoreVidMode ();
|
|
X11_CloseDisplay ();
|
|
}
|
|
|
|
static void
|
|
GL_Init (void)
|
|
{
|
|
GL_Init_Common ();
|
|
}
|
|
|
|
void
|
|
GL_EndRendering (void)
|
|
{
|
|
qfglFinish ();
|
|
qfglXSwapBuffers (x_disp, x_win);
|
|
Sbar_Changed ();
|
|
}
|
|
|
|
static void
|
|
VID_Center_f (void) {
|
|
X11_ForceViewPort ();
|
|
}
|
|
|
|
void
|
|
VID_Init (unsigned char *palette)
|
|
{
|
|
int i;
|
|
int attrib[] = {
|
|
GLX_RGBA,
|
|
GLX_RED_SIZE, 1,
|
|
GLX_GREEN_SIZE, 1,
|
|
GLX_BLUE_SIZE, 1,
|
|
GLX_DOUBLEBUFFER,
|
|
GLX_DEPTH_SIZE, 1,
|
|
None
|
|
};
|
|
|
|
GL_Pre_Init ();
|
|
|
|
use_gl_procaddress = 0;
|
|
|
|
qfglXSwapBuffers = QFGL_ProcAddress (libgl_handle, "glXSwapBuffers", true);
|
|
qfglXChooseVisual = QFGL_ProcAddress (libgl_handle, "glXChooseVisual",
|
|
true);
|
|
qfglXCreateContext = QFGL_ProcAddress (libgl_handle, "glXCreateContext",
|
|
true);
|
|
qfglXMakeCurrent = QFGL_ProcAddress (libgl_handle, "glXMakeCurrent", true);
|
|
|
|
use_gl_procaddress = 1;
|
|
|
|
Cmd_AddCommand ("vid_center", VID_Center_f, "Center the view port on the "
|
|
"quake window in a virtual desktop.\n");
|
|
|
|
VID_GetWindowSize (640, 480);
|
|
|
|
vid.maxwarpwidth = WARP_WIDTH;
|
|
vid.maxwarpheight = WARP_HEIGHT;
|
|
vid.colormap8 = vid_colormap;
|
|
vid.fullbright = 256 - LittleLong (*((int *) vid.colormap8 + 2048));
|
|
|
|
vid.conwidth &= 0xfff8; // make it a multiple of eight
|
|
vid.conwidth = max (vid.conwidth, 320);
|
|
|
|
// pick a conheight that matches with correct aspect
|
|
vid.conheight = (vid.conwidth * 3) / 4;
|
|
|
|
if ((i = COM_CheckParm ("-conheight"))) // conheight no smaller than 200p
|
|
vid.conheight = atoi (com_argv[i + 1]);
|
|
vid.conheight = max (vid.conheight, 200);
|
|
|
|
vid.height = vid.conheight = min (vid.conheight,
|
|
(unsigned int) scr_height);
|
|
vid.width = vid.conwidth = min (vid.conwidth, (unsigned int) scr_width);
|
|
|
|
Con_CheckResize (); // Now that we have a window size, fix console
|
|
|
|
X11_OpenDisplay ();
|
|
|
|
x_visinfo = qfglXChooseVisual (x_disp, x_screen, attrib);
|
|
if (!x_visinfo) {
|
|
Sys_Error ("Error couldn't get an RGB, Double-buffered, Depth visual");
|
|
}
|
|
x_vis = x_visinfo->visual;
|
|
|
|
X11_SetVidMode (scr_width, scr_height);
|
|
X11_CreateWindow (scr_width, scr_height);
|
|
X11_CreateNullCursor (); // hide mouse pointer
|
|
|
|
XSync (x_disp, 0);
|
|
|
|
ctx = qfglXCreateContext (x_disp, x_visinfo, NULL, True);
|
|
|
|
qfglXMakeCurrent (x_disp, x_win, ctx);
|
|
|
|
vid.aspect = ((float) vid.height / (float) vid.width) * (320.0 / 240.0);
|
|
vid.numpages = 2;
|
|
|
|
GL_Init ();
|
|
|
|
VID_InitGamma (palette);
|
|
|
|
// Check for 8-bit extension and initialize if present
|
|
VID_Init8bitPalette ();
|
|
VID_SetPalette (vid.palette);
|
|
|
|
Con_Printf ("Video mode %dx%d initialized.\n", scr_width, scr_height);
|
|
|
|
vid.initialized = true;
|
|
|
|
vid.recalc_refdef = 1; // force a surface cache flush
|
|
}
|
|
|
|
void
|
|
VID_Init_Cvars ()
|
|
{
|
|
X11_Init_Cvars ();
|
|
}
|
|
|
|
void
|
|
VID_SetCaption (const char *text)
|
|
{
|
|
if (text && *text) {
|
|
char *temp = strdup (text);
|
|
|
|
X11_SetCaption (va ("%s %s: %s", PROGRAM, VERSION, temp));
|
|
free (temp);
|
|
} else {
|
|
X11_SetCaption (va ("%s %s", PROGRAM, VERSION));
|
|
}
|
|
}
|
|
|
|
qboolean
|
|
VID_SetGamma (double gamma)
|
|
{
|
|
return X11_SetGamma (gamma);
|
|
}
|