From a87508008dfa1604baf2d4e39bf44704c00f261c Mon Sep 17 00:00:00 2001
From: Jarred Sumner <jarred@jarredsumner.com>
Date: Sun, 3 Apr 2022 16:34:10 -0700
Subject: skia WIP

---
 src/deps/skia/include/private/SkBitmaskEnum.h | 59 +++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/deps/skia/include/private/SkBitmaskEnum.h

(limited to 'src/deps/skia/include/private/SkBitmaskEnum.h')

diff --git a/src/deps/skia/include/private/SkBitmaskEnum.h b/src/deps/skia/include/private/SkBitmaskEnum.h
new file mode 100644
index 000000000..b25045359
--- /dev/null
+++ b/src/deps/skia/include/private/SkBitmaskEnum.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef SkEnumOperators_DEFINED
+#define SkEnumOperators_DEFINED
+
+#include <type_traits>
+
+namespace sknonstd {
+template <typename T> struct is_bitmask_enum : std::false_type {};
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, bool> constexpr Any(E e) {
+    return static_cast<std::underlying_type_t<E>>(e) != 0;
+}
+}  // namespace sknonstd
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, E> constexpr operator|(E l, E r) {
+    using U = std::underlying_type_t<E>;
+    return static_cast<E>(static_cast<U>(l) | static_cast<U>(r));
+}
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, E&> constexpr operator|=(E& l, E r) {
+    return l = l | r;
+}
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, E> constexpr operator&(E l, E r) {
+    using U = std::underlying_type_t<E>;
+    return static_cast<E>(static_cast<U>(l) & static_cast<U>(r));
+}
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, E&> constexpr operator&=(E& l, E r) {
+    return l = l & r;
+}
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, E> constexpr operator^(E l, E r) {
+    using U = std::underlying_type_t<E>;
+    return static_cast<E>(static_cast<U>(l) ^ static_cast<U>(r));
+}
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, E&> constexpr operator^=(E& l, E r) {
+    return l = l ^ r;
+}
+
+template <typename E>
+std::enable_if_t<sknonstd::is_bitmask_enum<E>::value, E> constexpr operator~(E e) {
+    return static_cast<E>(~static_cast<std::underlying_type_t<E>>(e));
+}
+
+#endif  // SkEnumOperators_DEFINED
-- 
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