IABSD.fr/xenocara/xserver/dri3/dri3.c

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• Author : matthieu
  Date : 2016-05-29 12:02:34
  Hash : e927c03e
  Message : Update to xserver 1.18.3. Tested by shadchin@ and naddy@. Note that indirect GLX is now disbled by default.

• xserver/dri3/dri3.c

• /*
   * Copyright © 2013 Keith Packard
   *
   * Permission to use, copy, modify, distribute, and sell this software and its
   * documentation for any purpose is hereby granted without fee, provided that
   * the above copyright notice appear in all copies and that both that copyright
   * notice and this permission notice appear in supporting documentation, and
   * that the name of the copyright holders not be used in advertising or
   * publicity pertaining to distribution of the software without specific,
   * written prior permission.  The copyright holders make no representations
   * about the suitability of this software for any purpose.  It is provided "as
   * is" without express or implied warranty.
   *
   * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
   * OF THIS SOFTWARE.
   */
  
  #ifdef HAVE_XORG_CONFIG_H
  #include <xorg-config.h>
  #endif
  
  #include "dri3_priv.h"
  
  static int dri3_request;
  DevPrivateKeyRec dri3_screen_private_key;
  
  static int dri3_screen_generation;
  
  static Bool
  dri3_close_screen(ScreenPtr screen)
  {
      dri3_screen_priv_ptr screen_priv = dri3_screen_priv(screen);
  
      unwrap(screen_priv, screen, CloseScreen);
  
      free(screen_priv);
      return (*screen->CloseScreen) (screen);
  }
  
  Bool
  dri3_screen_init(ScreenPtr screen, dri3_screen_info_ptr info)
  {
      dri3_screen_generation = serverGeneration;
  
      if (!dixRegisterPrivateKey(&dri3_screen_private_key, PRIVATE_SCREEN, 0))
          return FALSE;
  
      if (!dri3_screen_priv(screen)) {
          dri3_screen_priv_ptr screen_priv = calloc(1, sizeof (dri3_screen_priv_rec));
          if (!screen_priv)
              return FALSE;
  
          wrap(screen_priv, screen, CloseScreen, dri3_close_screen);
  
          screen_priv->info = info;
  
          dixSetPrivate(&screen->devPrivates, &dri3_screen_private_key, screen_priv);
      }
  
      return TRUE;
  }
  
  void
  dri3_extension_init(void)
  {
      ExtensionEntry *extension;
      int i;
  
      /* If no screens support DRI3, there's no point offering the
       * extension at all
       */
      if (dri3_screen_generation != serverGeneration)
          return;
  
  #ifdef PANORAMIX
      if (!noPanoramiXExtension)
          return;
  #endif
  
      extension = AddExtension(DRI3_NAME, DRI3NumberEvents, DRI3NumberErrors,
                               proc_dri3_dispatch, sproc_dri3_dispatch,
                               NULL, StandardMinorOpcode);
      if (!extension)
          goto bail;
  
      dri3_request = extension->base;
  
      for (i = 0; i < screenInfo.numScreens; i++) {
          if (!dri3_screen_init(screenInfo.screens[i], NULL))
              goto bail;
      }
      return;
  
  bail:
      FatalError("Cannot initialize DRI3 extension");
  }