1 files changed, 84 insertions, 0 deletions
diff --git a/third_party/dav1d/include/common/intops.h b/third_party/dav1d/include/common/intops.h
new file mode 100644
index 0000000000..2d21998b71
--- /dev/null
+++ b/third_party/dav1d/include/common/intops.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef DAV1D_COMMON_INTOPS_H
+#define DAV1D_COMMON_INTOPS_H
+
+#include <stdint.h>
+
+#include "common/attributes.h"
+
+static inline int imax(const int a, const int b) {
+    return a > b ? a : b;
+}
+
+static inline int imin(const int a, const int b) {
+    return a < b ? a : b;
+}
+
+static inline unsigned umax(const unsigned a, const unsigned b) {
+    return a > b ? a : b;
+}
+
+static inline unsigned umin(const unsigned a, const unsigned b) {
+    return a < b ? a : b;
+}
+
+static inline int iclip(const int v, const int min, const int max) {
+    return v < min ? min : v > max ? max : v;
+}
+
+static inline int iclip_u8(const int v) {
+    return iclip(v, 0, 255);
+}
+
+static inline int apply_sign(const int v, const int s) {
+    return s < 0 ? -v : v;
+}
+
+static inline int apply_sign64(const int v, const int64_t s) {
+    return s < 0 ? -v : v;
+}
+
+static inline int ulog2(const unsigned v) {
+    return 31 - clz(v);
+}
+
+static inline int u64log2(const uint64_t v) {
+    return 63 - clzll(v);
+}
+
+static inline unsigned inv_recenter(const unsigned r, const unsigned v) {
+    if (v > (r << 1))
+        return v;
+    else if ((v & 1) == 0)
+        return (v >> 1) + r;
+    else
+        return r - ((v + 1) >> 1);
+}
+
+#endif /* DAV1D_COMMON_INTOPS_H */