Port libyuv neon to nacl - compare

BUG=333
TESTED=d:\src\nacl_sdk\pepper_canary\tools\ncval.exe newlib/Release/nacltest_arm.nexe
R=nfullagar@chromium.org

Review URL: https://webrtc-codereview.appspot.com/17599004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1006 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1005
+Version: 1006
 License: BSD
 License File: LICENSE
 

include/libyuv/row.h

@@ -237,7 +237,8 @@ extern "C" {
 
 // The following are available on Neon platforms:
 #if !defined(LIBYUV_DISABLE_NEON) && \
-    (defined(__ARM_NEON__) || defined(LIBYUV_NEON))
+    (defined(__ARM_NEON__) || defined(LIBYUV_NEON)) && \
+    !defined(__native_client__)
 #define HAS_ABGRTOUVROW_NEON
 #define HAS_ABGRTOYROW_NEON
 #define HAS_ARGB1555TOARGBROW_NEON

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1005
+#define LIBYUV_VERSION 1006
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

source/compare_neon.cc

@@ -27,7 +27,14 @@ uint32 SumSquareError_NEON(const uint8* src_a, const uint8* src_b, int count) {
 
     ".p2align  2                               \n"
   "1:                                          \n"
+    // TODO(fbarchard): Define a macro for clearing address bits for NaCL.
+#if defined(__native_client__)
+    "bic        %0, #0xc0000000                \n"
+#endif
     "vld1.8     {q0}, [%0]!                    \n"
+#if defined(__native_client__)
+    "bic        %1, #0xc0000000                \n"
+#endif
     "vld1.8     {q1}, [%1]!                    \n"
     "subs       %2, %2, #16                    \n"
     "vsubl.u8   q2, d0, d2                     \n"

source/rotate_neon.cc

@@ -17,7 +17,8 @@ namespace libyuv {
 extern "C" {
 #endif
 
-#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__)
+#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \
+  !defined(__native_client__)
 static uvec8 kVTbl4x4Transpose =
   { 0,  4,  8, 12,  1,  5,  9, 13,  2,  6, 10, 14,  3,  7, 11, 15 };
 

source/row_neon.cc

@@ -16,7 +16,8 @@ extern "C" {
 #endif
 
 // This module is for GCC Neon
-#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__)
+#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \
+  !defined(__native_client__)
 
 // Read 8 Y, 4 U and 4 V from 422
 #define READYUV422                                                             \

source/scale_neon.cc

@@ -16,7 +16,8 @@ extern "C" {
 #endif
 
 // This module is for GCC Neon.
-#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__)
+#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \
+  !defined(__native_client__)
 
 // NEON downscalers with interpolation.
 // Provided by Fritz Koenig