From 8a1ab9a166dd358f0e71a1cc98e8b6c20b5d8822 Mon Sep 17 00:00:00 2001 From: Alyssa Rosenzweig Date: Thu, 14 Mar 2019 04:13:45 +0000 Subject: [PATCH] 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 Reviewed-by: Eric Engestrom Reviewed-by: Rob Clark Reviewed-by: Eric Anholt --- src/util/u_drm.h | 55 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 src/util/u_drm.h diff --git a/src/util/u_drm.h b/src/util/u_drm.h new file mode 100644 index 00000000000..a0b4a844adf --- /dev/null +++ b/src/util/u_drm.h @@ -0,0 +1,55 @@ +/* + * Copyright © 2014 Broadcom + * Copyright (C) 2012 Rob Clark + * + * 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. + */ + +#ifndef U_DRM_H +#define U_DRM_H + +#include +#include + +/* Does the u64 array contain the listed u64? */ + +static inline bool +util_array_contains_u64(uint64_t needle, const uint64_t *haystack, unsigned count) +{ + unsigned i; + + for (i = 0; i < count; i++) { + if (haystack[i] == needle) + return true; + } + + return false; +} + +/* Given a list of DRM modifiers and a desired modifier, returns whether the + * modifier is found */ + +static inline bool +drm_find_modifier(uint64_t modifier, const uint64_t *modifiers, unsigned count) +{ + return util_array_contains_u64(modifier, modifiers, count); +} + +#endif -- 2.30.2