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

   1 /* $Id: genkgi_visual.c,v 1.5 1999/09/21 00:46:26 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 "genkgi.h"
  32
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <ctype.h>
  37 #include <errno.h>
  38 #include <unistd.h>
  39 #include <fcntl.h>
  40 #include <sys/stat.h>
  41
  42 #ifdef HAVE_SYS_VT_H
  43 #include <sys/vt.h>
  44 #else
  45 #include <linux/vt.h>
  46 #endif
  47 #ifdef HAVE_LINUX_KDEV_T_H
  48 #include <linux/kdev_t.h>
  49 #endif
  50 #include <linux/tty.h>
  51
  52 #define DEFAULT_FBNUM   0
  53
  54 static char accel_prefix[] = "tgt-fbdev-kgicon-";
  55 #define PREFIX_LEN      (sizeof(accel_prefix))
  56
  57 typedef struct {
  58         int   async;
  59         char *str;
  60 } accel_info;
  61
  62 static accel_info accel_strings[] =
  63 {
  64         { 0, "d3dim" },         /* Direct3D Immediate Mode              */
  65 };
  66
  67 #define NUM_ACCELS      (sizeof(accel_strings)/sizeof(accel_info))
  68
  69 /* FIXME: These should be defined in the makefile system */
  70 #define CONF_FILE "/usr/local/etc/ggi/mesa/targets/genkgi.conf"
  71 void *_configHandle;
  72 char confstub[512] = CONF_FILE;
  73 char *conffile = confstub;
  74
  75 static int changed(ggi_visual_t vis, int whatchanged)
  76 {
  77         gl_ggiDEBUG("Entered ggimesa_genkgi_changed\n");
  78         switch (whatchanged)
  79         {
  80                 case GGI_CHG_APILIST:
  81                 {
  82                         char api[256];
  83                         char args[256];
  84                         int i;
  85                         const char *fname;
  86                         ggi_dlhandle *lib;
  87
  88                         for (i = 0; ggiGetAPI(vis, i, api, args) == 0; i++)
  89                         {
  90                                 strcat(api, "-mesa");
  91                                 gl_ggiDEBUG("ggimesa_genkgi_changed: api=%s, i=%d\n", api, i);
  92                                 fname = ggMatchConfig(_configHandle, api, NULL);
  93                                 if (fname == NULL)
  94                                 {
  95                                         /* No special implementation for this sublib */
  96                                         continue;
  97                                 }
  98
  99                                 lib = ggiExtensionLoadDL(vis, fname, args, NULL);
 100                         }
 101                 }
 102                 break;
 103         }
 104         return 0;
 105 }
 106
 107 int GGIdlinit(ggi_visual *vis, const char *args, void *argptr)
 108 {
 109         struct genkgi_priv_mesa *priv;
 110         char libname[256], libargs[256];
 111         int id, err;
 112         struct stat junk;
 113         ggifunc_getapi *oldgetapi;
 114
 115         gl_ggiDEBUG("display-fbdev-kgicon-mesa: GGIdlinit start\n");
 116
 117         GENKGI_PRIV_MESA(vis) = priv = malloc(sizeof(struct genkgi_priv_mesa));
 118         if (priv == NULL)
 119         {
 120                 fprintf(stderr, "Failed to allocate genkgi private data\n");
 121                 return GGI_DL_ERROR;
 122         }
 123
 124         priv->oldpriv = GENKGI_PRIV(vis);
 125 #if 0
 126         err = ggLoadConfig(conffile, &_configHandle);
 127         if (err != GGI_OK)
 128         {
 129                 gl_ggiPrint("display-fbdev-kgicon-mesa: Couldn't open %s\n", conffile);
 130                 return err;
 131         }
 132
 133         /* Hack city here.  We need to probe the KGI driver properly for
 134          * suggest-strings to discover the acceleration type(s).
 135          */
 136         priv->have_accel = 0;
 137
 138         if (stat("/proc/gfx0", &junk) == 0)
 139         {
 140                 sprintf(priv->accel, "%s%s", accel_prefix, "d3dim");
 141                 priv->have_accel = 1;
 142                 gl_ggiDEBUG("display-fbdev-kgicon-mesa: Using accel: \"%s\"\n", priv->accel);
 143         }
 144
 145         /* Mode management */
 146         vis->opdisplay->getapi = GGIMesa_genkgi_getapi;
 147         ggiIndicateChange(vis, GGI_CHG_APILIST);
 148
 149         /* Give the accel sublibs a chance to set up a driver */
 150         if (priv->have_accel == 1)
 151         {
 152                 oldgetapi = vis->opdisplay->getapi;
 153                 vis->opdisplay->getapi = GGIMesa_genkgi_getapi;
 154                 changed(vis, GGI_CHG_APILIST);
 155                 /* If the accel sublibs didn't produce, back up
 156                  * and keep looking */
 157                 if ((LIBGGI_MESAEXT(vis)->update_state == NULL) ||
 158                     (LIBGGI_MESAEXT(vis)->setup_driver == NULL))
 159                   vis->opdisplay->getapi = oldgetapi;
 160         }
 161
 162         LIBGGI_MESAEXT(vis)->update_state = genkgi_update_state;
 163         LIBGGI_MESAEXT(vis)->setup_driver = genkgi_setup_driver;
 164 #endif
 165         gl_ggiDEBUG("display-fbdev-kgicon-mesa: GGIdlinit finished\n");
 166
 167         return 0;
 168 }
 169
 170 int GGIdlcleanup(ggi_visual *vis)
 171 {
 172         return 0;
 173 }
 174
 175 #include <ggi/internal/ggidlinit.h>