Changeset 5699 for pjproject/trunk/third_party/yuv/source/compare_common.cc

Timestamp:

Nov 21, 2017 9:25:11 AM (7 years ago)

Author:

riza

Message:

Close #2065: Update libyuv to fix linker error when building libyuv as dll on Visual Studio 2015.

File:

• pjproject/trunk/third_party/yuv/source/compare_common.cc (modified) (2 diffs)

pjproject/trunk/third_party/yuv/source/compare_common.cc

@@ -19 +19 @@
 
 #if ORIGINAL_OPT
-uint32 HammingDistance_C(const uint8* src_a, const uint8* src_b, int count) {
+uint32 HammingDistance_C1(const uint8* src_a, const uint8* src_b, int count) {
   uint32 diff = 0u;
 
@@ -59 +59 @@
     src_b += 4;
   }
+
+  for (; i < count; ++i) {
+    uint32 x = *src_a ^ *src_b;
+    uint32 u = x - ((x >> 1) & 0x55);
+    u = ((u >> 2) & 0x33) + (u & 0x33);
+    diff += (u + (u >> 4)) & 0x0f;
+    src_a += 1;
+    src_b += 1;
+  }
+
   return diff;
 }