tegra_drm_winsys.c

/*
 * Copyright © 2014-2018 NVIDIA Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <fcntl.h>

#include "util/os_file.h"
#include "util/u_debug.h"

#include "tegra/tegra_screen.h"

struct pipe_screen *tegra_drm_screen_create(int fd);

struct pipe_screen *tegra_drm_screen_create(int fd)
{
   struct pipe_screen *screen;

   /*
    * NOTE: There are reportedly issues with reusing the file descriptor
    * as-is related to Xinerama. Duplicate it to side-step any issues.
    */
   fd = os_dupfd_cloexec(fd);
   if (fd < 0)
      return NULL;

   screen = tegra_screen_create(fd);
   if (!screen)
      close(fd);

   return screen;
}