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authortrav90 <travawine@palemoon.org>2018-10-19 23:05:00 -0500
committertrav90 <travawine@palemoon.org>2018-10-19 23:05:03 -0500
commitd2499ead93dc4298c0882fe98902acb1b5209f99 (patch)
treecb0b942aed59e5108f9a3e9d64e7b77854383421 /third_party/aom/av1/common/odintrin.h
parent41fbdea457bf50c0a43e1c27c5cbf7f0a3a9eb33 (diff)
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Update libaom to commit ID 1e227d41f0616de9548a673a83a21ef990b62591
Diffstat (limited to 'third_party/aom/av1/common/odintrin.h')
-rw-r--r--third_party/aom/av1/common/odintrin.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/third_party/aom/av1/common/odintrin.h b/third_party/aom/av1/common/odintrin.h
index e87c5a0bf..e1db0f44d 100644
--- a/third_party/aom/av1/common/odintrin.h
+++ b/third_party/aom/av1/common/odintrin.h
@@ -11,8 +11,8 @@
/* clang-format off */
-#ifndef AV1_COMMON_ODINTRIN_H_
-#define AV1_COMMON_ODINTRIN_H_
+#ifndef AOM_AV1_COMMON_ODINTRIN_H_
+#define AOM_AV1_COMMON_ODINTRIN_H_
#include <stdlib.h>
#include <string.h>
@@ -46,9 +46,9 @@ extern uint32_t OD_DIVU_SMALL_CONSTS[OD_DIVU_DMAX][2];
#define OD_MAXI AOMMAX
#define OD_CLAMPI(min, val, max) (OD_MAXI(min, OD_MINI(val, max)))
-#define OD_CLZ0 (1)
-#define OD_CLZ(x) (-get_msb(x))
-#define OD_ILOG_NZ(x) (OD_CLZ0 - OD_CLZ(x))
+/*Integer logarithm (base 2) of a nonzero unsigned 32-bit integer.
+ OD_ILOG_NZ(x) = (int)floor(log2(x)) + 1.*/
+#define OD_ILOG_NZ(x) (1 + get_msb(x))
/*Enable special features for gcc and compatible compilers.*/
#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
@@ -93,4 +93,4 @@ extern uint32_t OD_DIVU_SMALL_CONSTS[OD_DIVU_DMAX][2];
} // extern "C"
#endif
-#endif // AV1_COMMON_ODINTRIN_H_
+#endif // AOM_AV1_COMMON_ODINTRIN_H_