src/mesa/drivers/ggi/default/genkgi_visual.c

   1 /* $Id: genkgi_visual.c,v 1.6 2000/01/07 08:34:44 jtaylor Exp $
   2 ******************************************************************************
   3
   4    genkgi_visual.c: visual handling for the generic KGI helper
   5
   6    Copyright (C) 1999 Jon Taylor [taylorj@ggi-project.org]
   7
   8    Permission is hereby granted, free of charge, to any person obtaining a
   9    copy of this software and associated documentation files (the "Software"),
  10    to deal in the Software without restriction, including without limitation
  11    the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12    and/or sell copies of the Software, and to permit persons to whom the
  13    Software is furnished to do so, subject to the following conditions:
  14
  15    The above copyright notice and this permission notice shall be included in
  16    all copies or substantial portions of the Software.
  17
  18    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21    THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  22    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24
  25 ******************************************************************************
  26 */
  27
  28 #include <ggi/internal/ggi-dl.h>
  29 #include <ggi/mesa/ggimesa_int.h>
  30 #include <ggi/mesa/display_fbdev.h>
  31 #include <ggi/mesa/debug.h>
  32 #include "genkgi.h"
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <ctype.h>
  38 #include <errno.h>
  39 #include <unistd.h>
  40 #include <fcntl.h>
  41 #include <sys/stat.h>
  42
  43 #ifdef HAVE_SYS_VT_H
  44 #include <sys/vt.h>
  45 #else
  46 #include <linux/vt.h>
  47 #endif
  48 #ifdef HAVE_LINUX_KDEV_T_H
  49 #include <linux/kdev_t.h>
  50 #endif
  51 #include <linux/tty.h>
  52
  53 #define DEFAULT_FBNUM   0
  54
  55 static char accel_prefix[] = "tgt-fbdev-kgicon-";
  56 #define PREFIX_LEN      (sizeof(accel_prefix))
  57
  58 typedef struct {
  59         int   async;
  60         char *str;
  61 } accel_info;
  62
  63 static accel_info accel_strings[] =
  64 {
  65         { 0, "d3dim" },         /* Direct3D Immediate Mode              */
  66 };
  67
  68 #define NUM_ACCELS      (sizeof(accel_strings)/sizeof(accel_info))
  69
  70 /* FIXME: These should be defined in the makefile system */
  71 #define CONF_FILE "/usr/local/etc/ggi/mesa/targets/genkgi.conf"
  72 void *_configHandle;
  73 char confstub[512] = CONF_FILE;
  74 char *conffile = confstub;
  75
  76 static int changed(ggi_visual_t vis, int whatchanged)
  77 {
  78         GGIMESADPRINT_CORE("Entered ggimesa_genkgi_changed\n");
  79
  80         switch (whatchanged)
  81         {
  82                 case GGI_CHG_APILIST:
  83                 {
  84                         char api[256];
  85                         char args[256];
  86                         int i;
  87                         const char *fname;
  88                         ggi_dlhandle *lib;
  89
  90                         for (i = 0; ggiGetAPI(vis, i, api, args) == 0; i++)
  91                         {
  92                                 strcat(api, "-mesa");
  93                                 GGIMESADPRINT_CORE("ggimesa_genkgi_changed: api=%s, i=%d\n", api, i);
  94                                 fname = ggMatchConfig(_configHandle, api, NULL);
  95                                 if (fname == NULL)
  96                                 {
  97                                         /* No special implementation for this sublib */
  98                                         continue;
  99                                 }
 100
 101                                 lib = ggiExtensionLoadDL(vis, fname, args, NULL);
 102                         }
 103                 }
 104                 break;
 105         }
 106         return 0;
 107 }
 108
 109 int GGIdlinit(ggi_visual *vis, const char *args, void *argptr)
 110 {
 111         struct genkgi_priv_mesa *priv;
 112         char libname[256], libargs[256];
 113         int id, err;
 114         struct stat junk;
 115         ggifunc_getapi *oldgetapi;
 116
 117         GGIMESADPRINT_CORE("display-fbdev-kgicon-mesa: GGIdlinit start\n");
 118
 119         GENKGI_PRIV_MESA(vis) = priv = malloc(sizeof(struct genkgi_priv_mesa));
 120         if (priv == NULL)
 121         {
 122                 fprintf(stderr, "Failed to allocate genkgi private data\n");
 123                 return GGI_DL_ERROR;
 124         }
 125
 126         priv->oldpriv = GENKGI_PRIV(vis);
 127 #if 0
 128         err = ggLoadConfig(conffile, &_configHandle);
 129         if (err != GGI_OK)
 130         {
 131                 gl_ggiPrint("display-fbdev-kgicon-mesa: Couldn't open %s\n", conffile);
 132                 return err;
 133         }
 134
 135         /* Hack city here.  We need to probe the KGI driver properly for
 136          * suggest-strings to discover the acceleration type(s).
 137          */
 138         priv->have_accel = 0;
 139
 140         if (stat("/proc/gfx0", &junk) == 0)
 141         {
 142                 sprintf(priv->accel, "%s%s", accel_prefix, "d3dim");
 143                 priv->have_accel = 1;
 144                 GGIMESADPRINT_CORE("display-fbdev-kgicon-mesa: Using accel: \"%s\"\n", priv->accel);
 145         }
 146
 147         /* Mode management */
 148         vis->opdisplay->getapi = GGIMesa_genkgi_getapi;
 149         ggiIndicateChange(vis, GGI_CHG_APILIST);
 150
 151         /* Give the accel sublibs a chance to set up a driver */
 152         if (priv->have_accel == 1)
 153         {
 154                 oldgetapi = vis->opdisplay->getapi;
 155                 vis->opdisplay->getapi = GGIMesa_genkgi_getapi;
 156                 changed(vis, GGI_CHG_APILIST);
 157                 /* If the accel sublibs didn't produce, back up
 158                  * and keep looking */
 159                 if ((LIBGGI_MESAEXT(vis)->update_state == NULL) ||
 160                     (LIBGGI_MESAEXT(vis)->setup_driver == NULL))
 161                   vis->opdisplay->getapi = oldgetapi;
 162         }
 163
 164         LIBGGI_MESAEXT(vis)->update_state = genkgi_update_state;
 165         LIBGGI_MESAEXT(vis)->setup_driver = genkgi_setup_driver;
 166 #endif
 167         GGIMESADPRINT_CORE("display-fbdev-kgicon-mesa: GGIdlinit finished\n");
 168
 169         return 0;
 170 }
 171
 172 int GGIdlcleanup(ggi_visual *vis)
 173 {
 174         return 0;
 175 }
 176
 177 #include <ggi/internal/ggidlinit.h>