From: Chad Versace <chad.versace@intel.com>
Date: Tue, 7 Jul 2015 22:42:04 +0000 (-0700)
Subject: vk: Add func anv_clear_mask()
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4af79ab076942092ce66c746e67513c46857b85a;p=mesa.git

vk: Add func anv_clear_mask()

A little helper func for inspecting and clearing bitmasks.
---

diff --git a/src/vulkan/private.h b/src/vulkan/private.h
index e0b18eaeddf..cee152bada0 100644
--- a/src/vulkan/private.h
+++ b/src/vulkan/private.h
@@ -90,6 +90,17 @@ anv_minify(uint32_t n, uint32_t levels)
       return MAX(n >> levels, 1);
 }
 
+static inline bool
+anv_clear_mask(uint32_t *inout_mask, uint32_t clear_mask)
+{
+   if (*inout_mask & clear_mask) {
+      *inout_mask &= ~clear_mask;
+      return true;
+   } else {
+      return false;
+   }
+}
+
 #define for_each_bit(b, dword)                          \
    for (uint32_t __dword = (dword);                     \
         (b) = __builtin_ffs(__dword) - 1, __dword;      \