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  1. /*
  2.  * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person obtaining a
  5.  * copy of this software and associated documentation files (the
  6.  * "Software"), to deal in the Software without restriction, including
  7.  * without limitation the rights to use, copy, modify, merge, publish,
  8.  * distribute, sub license, and/or sell copies of the Software, and to
  9.  * permit persons to whom the Software is furnished to do so, subject to
  10.  * the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice (including the
  13.  * next paragraph) shall be included in all copies or substantial portions
  14.  * of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  19.  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  20.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  21.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  22.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23.  */
  24.  
  25. #include <stdio.h>
  26. #include <unistd.h>
  27. #include <fcntl.h>
  28. #ifdef IN_LIBVA
  29. # include "va/drm/va_drm.h"
  30. #else
  31. # include <va/va_drm.h>
  32. #endif
  33. #include "va_display.h"
  34.  
  35. static int drm_fd = -1;
  36.  
  37. static VADisplay
  38. va_open_display_drm(void)
  39. {
  40.     VADisplay va_dpy;
  41.     int i;
  42.  
  43.     static const char *drm_device_paths[] = {
  44.         "/dev/dri/renderD128",
  45.         "/dev/dri/card0",
  46.         NULL
  47.     };
  48.  
  49.     for (i = 0; drm_device_paths[i]; i++) {
  50.         drm_fd = open(drm_device_paths[i], O_RDWR);
  51.         if (drm_fd < 0)
  52.             continue;
  53.  
  54.         va_dpy = vaGetDisplayDRM(drm_fd);
  55.         if (va_dpy)
  56.             return va_dpy;
  57.  
  58.         close(drm_fd);
  59.         drm_fd = -1;
  60.     }
  61.     return NULL;
  62. }
  63.  
  64. static void
  65. va_close_display_drm(VADisplay va_dpy)
  66. {
  67.     if (drm_fd < 0)
  68.         return;
  69.  
  70.     close(drm_fd);
  71.     drm_fd = -1;
  72. }
  73.  
  74.  
  75. static VAStatus
  76. va_put_surface_drm(
  77.     VADisplay          va_dpy,
  78.     VASurfaceID        surface,
  79.     const VARectangle *src_rect,
  80.     const VARectangle *dst_rect
  81. )
  82. {
  83.     return VA_STATUS_ERROR_OPERATION_FAILED;
  84. }
  85.  
  86. const VADisplayHooks va_display_hooks_drm = {
  87.     "drm",
  88.     va_open_display_drm,
  89.     va_close_display_drm,
  90.     va_put_surface_drm,
  91. };
  92.