mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-14 08:50:58 +00:00
df3d9fe4df
I don't know what despair and I were thinking, but we obviously didn't understand the colormap code at the time.
349 lines
7.9 KiB
C
349 lines
7.9 KiB
C
/*
|
|
vid_3dfxsvga.c
|
|
|
|
OpenGL device driver for 3Dfx chipsets running Linux
|
|
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
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
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
static __attribute__ ((used)) 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 <setjmp.h>
|
|
|
|
#include "QF/cvar.h"
|
|
#include "QF/console.h"
|
|
#include "QF/qargs.h"
|
|
#include "QF/qendian.h"
|
|
#include "QF/sys.h"
|
|
#include "QF/va.h"
|
|
#include "QF/vid.h"
|
|
#include "QF/GL/extensions.h"
|
|
#include "QF/GL/funcs.h"
|
|
#include "QF/GL/qf_vid.h"
|
|
|
|
#include "compat.h"
|
|
#include "sbar.h"
|
|
#include "r_cvar.h"
|
|
|
|
#define WARP_WIDTH 320
|
|
#define WARP_HEIGHT 200
|
|
|
|
#define GLAPI extern
|
|
#define GLAPIENTRY
|
|
|
|
#define FXMESA_NONE 0 // to terminate attribList
|
|
#define FXMESA_DOUBLEBUFFER 10
|
|
#define FXMESA_ALPHA_SIZE 11 // followed by an integer
|
|
#define FXMESA_DEPTH_SIZE 12 // followed by an integer
|
|
|
|
#define GL_DITHER 0x0BD0
|
|
|
|
typedef struct tfxMesaContext *fxMesaContext;
|
|
|
|
#define GR_REFRESH_75Hz 0x3
|
|
|
|
#define GR_DITHER_2x2 0x1
|
|
#define GR_DITHER_4x4 0x2
|
|
#define GR_RESOLUTION_320x200 0x0
|
|
#define GR_RESOLUTION_320x240 0x1
|
|
#define GR_RESOLUTION_400x256 0x2
|
|
#define GR_RESOLUTION_512x384 0x3
|
|
#define GR_RESOLUTION_640x200 0x4
|
|
#define GR_RESOLUTION_640x350 0x5
|
|
#define GR_RESOLUTION_640x400 0x6
|
|
#define GR_RESOLUTION_640x480 0x7
|
|
#define GR_RESOLUTION_800x600 0x8
|
|
#define GR_RESOLUTION_960x720 0x9
|
|
#define GR_RESOLUTION_512x256 0xb
|
|
#define GR_RESOLUTION_856x480 0xa
|
|
#define GR_RESOLUTION_400x300 0xF
|
|
|
|
void (* qf_fxMesaDestroyContext) (fxMesaContext ctx);
|
|
void (* qf_fxMesaSwapBuffers) (void);
|
|
fxMesaContext (* qf_fxMesaCreateContext) (GLuint win, GrScreenResolution_t, GrScreenRefresh_t, const GLint attribList[]);
|
|
void (* qf_fxMesaMakeCurrent) (fxMesaContext ctx);
|
|
|
|
static fxMesaContext fc = NULL;
|
|
|
|
int VID_options_items = 0;
|
|
|
|
|
|
#if defined(HAVE_DLOPEN)
|
|
|
|
void * (* glGetProcAddress) (const char *symbol)= NULL;
|
|
|
|
void *
|
|
QFGL_GetProcAddress (void *handle, const char *name)
|
|
{
|
|
void *glfunc = NULL;
|
|
|
|
if (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, "glXGetProcAddress");
|
|
if (!glGetProcAddress)
|
|
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 (!fc)
|
|
return;
|
|
|
|
qf_fxMesaDestroyContext (fc);
|
|
}
|
|
|
|
static void
|
|
GL_Init (void)
|
|
{
|
|
QF_3DfxSetDitherModeEXT dither_select = NULL;
|
|
int p;
|
|
|
|
GL_Init_Common ();
|
|
|
|
if (!(QFGL_ExtensionPresent ("3DFX_set_dither_mode")))
|
|
return;
|
|
|
|
if (!(dither_select = QFGL_ExtensionAddress ("gl3DfxSetDitherModeEXT")))
|
|
return;
|
|
|
|
Sys_MaskPrintf (SYS_VID, "Dithering: ");
|
|
|
|
if ((p = COM_CheckParm ("-dither")) && p < com_argc) {
|
|
if (strequal (com_argv[p+1], "2x2")) {
|
|
dither_select (GR_DITHER_2x2);
|
|
Sys_MaskPrintf (SYS_VID, "2x2.\n");
|
|
}
|
|
if (strequal (com_argv[p+1], "4x4")) {
|
|
dither_select (GR_DITHER_4x4);
|
|
Sys_MaskPrintf (SYS_VID, "4x4.\n");
|
|
}
|
|
} else {
|
|
qfglDisable (GL_DITHER);
|
|
Sys_MaskPrintf (SYS_VID, "disabled.\n");
|
|
}
|
|
}
|
|
|
|
VISIBLE void
|
|
GL_EndRendering (void)
|
|
{
|
|
qfglFinish ();
|
|
qf_fxMesaSwapBuffers ();
|
|
Sbar_Changed ();
|
|
}
|
|
|
|
static unsigned 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 (unsigned int *width, unsigned int *height)
|
|
{
|
|
unsigned 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;
|
|
}
|
|
|
|
void
|
|
VID_Init (unsigned char *palette)
|
|
{
|
|
GLint attribs[32];
|
|
|
|
GLF_Init ();
|
|
|
|
qf_fxMesaCreateContext = QFGL_ProcAddress (libgl_handle,
|
|
"fxMesaCreateContext", true);
|
|
qf_fxMesaDestroyContext = QFGL_ProcAddress (libgl_handle,
|
|
"fxMesaDestroyContext", true);
|
|
qf_fxMesaMakeCurrent = QFGL_ProcAddress (libgl_handle,
|
|
"fxMesaMakeCurrent", true);
|
|
qf_fxMesaSwapBuffers = QFGL_ProcAddress (libgl_handle,
|
|
"fxMesaSwapBuffers", true);
|
|
|
|
VID_GetWindowSize (640, 480);
|
|
|
|
vid.maxwarpwidth = WARP_WIDTH;
|
|
vid.maxwarpheight = WARP_HEIGHT;
|
|
vid.colormap8 = vid_colormap;
|
|
vid.fullbright = 256 - vid.colormap8[256 * VID_GRADES];
|
|
|
|
// 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;
|
|
|
|
fc = qf_fxMesaCreateContext (0, findres (&vid.width, &vid.height),
|
|
GR_REFRESH_75Hz, attribs);
|
|
if (!fc)
|
|
Sys_Error ("Unable to create 3DFX context.");
|
|
|
|
qf_fxMesaMakeCurrent (fc);
|
|
|
|
vid.numpages = 2;
|
|
|
|
vid_gamma_avail = 1;
|
|
|
|
GL_Init ();
|
|
|
|
VID_InitGamma (palette);
|
|
VID_SetPalette (vid.palette);
|
|
|
|
// Check for 3DFX Extensions and initialize them.
|
|
VID_Init8bitPalette ();
|
|
|
|
vid.initialized = true;
|
|
|
|
Sys_MaskPrintf (SYS_VID, "Video mode %dx%d initialized.\n",
|
|
vid.width, vid.height);
|
|
|
|
vid.recalc_refdef = 1; // force a surface cache flush
|
|
}
|
|
|
|
void
|
|
VID_Init_Cvars (void)
|
|
{
|
|
vid_system_gamma = Cvar_Get ("vid_system_gamma", "1", CVAR_ARCHIVE, NULL,
|
|
"Use system gamma control if available");
|
|
}
|
|
|
|
void
|
|
VID_SetCaption (const char *text)
|
|
{
|
|
}
|
|
|
|
qboolean
|
|
VID_SetGamma (double gamma)
|
|
{
|
|
return true;
|
|
}
|