util: Add a drm_find_modifier helper
This function is replicated across vc4/v3d/freedreno and is needed in Panfrost; let's make this shared code. v2: Supply generic util_array_contains_u64 version (Eric Engestrom). Add missing stdbool.h include (Eric Anholt). Mark inline (Christian Gmeiner). Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Eric Engestrom <eric.engestrom@intel.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Eric Anholt <eric@anholt.net>
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/*
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* Copyright © 2014 Broadcom
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* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef U_DRM_H
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#define U_DRM_H
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#include <stdint.h>
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#include <stdbool.h>
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/* Does the u64 array contain the listed u64? */
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static inline bool
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util_array_contains_u64(uint64_t needle, const uint64_t *haystack, unsigned count)
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{
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unsigned i;
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for (i = 0; i < count; i++) {
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if (haystack[i] == needle)
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return true;
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}
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return false;
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}
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/* Given a list of DRM modifiers and a desired modifier, returns whether the
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* modifier is found */
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static inline bool
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drm_find_modifier(uint64_t modifier, const uint64_t *modifiers, unsigned count)
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{
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return util_array_contains_u64(modifier, modifiers, count);
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}
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#endif
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