[FFmpeg-cvslog] r16819 - trunk/libavcodec/arm/mathops.h

[mru]

Author: mru
Date: Tue Jan 27 17:06:38 2009
New Revision: 16819

Log:
ARM: optimised mid_pred()

Modified:
   trunk/libavcodec/arm/mathops.h

Modified: trunk/libavcodec/arm/mathops.h
==============================================================================
--- trunk/libavcodec/arm/mathops.h	Tue Jan 27 17:06:34 2009	(r16818)
+++ trunk/libavcodec/arm/mathops.h	Tue Jan 27 17:06:38 2009	(r16819)
@@ -90,4 +90,22 @@ static inline av_const MUL16(int ra, int
 
 #endif
 
+#define mid_pred mid_pred
+static inline av_const int mid_pred(int a, int b, int c)
+{
+    int m;
+    __asm__ volatile (
+        "mov   %0, %2  \n\t"
+        "cmp   %1, %2  \n\t"
+        "movgt %0, %1  \n\t"
+        "movgt %1, %2  \n\t"
+        "cmp   %1, %3  \n\t"
+        "movle %1, %3  \n\t"
+        "cmp   %0, %1  \n\t"
+        "movgt %0, %1  \n\t"
+        : "=&r"(m), "+r"(a)
+        : "r"(b), "r"(c));
+    return m;
+}
+
 #endif /* AVCODEC_ARM_MATHOPS_H */