src/util/u_drm.h

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #ifndef U_DRM_H
  26 #define U_DRM_H
  27
  28 #include <stdint.h>
  29 #include <stdbool.h>
  30
  31 /* Does the u64 array contain the listed u64? */
  32
  33 static inline bool
  34 util_array_contains_u64(uint64_t needle, const uint64_t *haystack, unsigned count)
  35 {
  36    unsigned i;
  37
  38    for (i = 0; i < count; i++) {
  39       if (haystack[i] == needle)
  40          return true;
  41    }
  42
  43    return false;
  44 }
  45
  46 /* Given a list of DRM modifiers and a desired modifier, returns whether the
  47  * modifier is found */
  48
  49 static inline bool
  50 drm_find_modifier(uint64_t modifier, const uint64_t *modifiers, unsigned count)
  51 {
  52    return util_array_contains_u64(modifier, modifiers, count);
  53 }
  54
  55 #endif