Make generic SIMD code compile if no native support

Change-Id: I7f691a0ae27f06ef3d727764829a60a8ffc509eb

aom_dsp/aom_dsp.mk

diff --git a/aom_dsp/aom_dsp.mk b/aom_dsp/aom_dsp.mk
index 0d0dc94..2adbef1 100644
--- a/aom_dsp/aom_dsp.mk
+++ b/aom_dsp/aom_dsp.mk
@@ -376,4 +376,6 @@
 DSP_SRCS-yes += aom_dsp_rtcd.c
 DSP_SRCS-yes += aom_dsp_rtcd_defs.pl
 
+DSP_SRCS-yes += aom_simd.c
+
 $(eval $(call rtcd_h_template,aom_dsp_rtcd,aom_dsp/aom_dsp_rtcd_defs.pl))

aom_dsp/aom_simd.c

diff --git a/aom_dsp/aom_simd.c b/aom_dsp/aom_simd.c
new file mode 100644
index 0000000..03f4ba9
--- /dev/null
+++ b/aom_dsp/aom_simd.c
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+// Set to 1 to add some sanity checks in the fallback C code
+const int simd_check = 1;

aom_dsp/simd/v128_intrinsics_c.h

diff --git a/aom_dsp/simd/v128_intrinsics_c.h b/aom_dsp/simd/v128_intrinsics_c.h
index 561ac86..34e312e 100644
--- a/aom_dsp/simd/v128_intrinsics_c.h
+++ b/aom_dsp/simd/v128_intrinsics_c.h
@@ -15,6 +15,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include "./v64_intrinsics_c.h"
+#include "./aom_config.h"
 
 typedef union {
   uint8_t u8[16];
@@ -406,11 +407,13 @@
 }
 
 SIMD_INLINE c_v128 c_v128_unziplo_8(c_v128 a, c_v128 b) {
-  return big_endian() ? _c_v128_unzip_8(a, b, 1) : _c_v128_unzip_8(a, b, 0);
+  return CONFIG_BIG_ENDIAN ? _c_v128_unzip_8(a, b, 1)
+                           : _c_v128_unzip_8(a, b, 0);
 }
 
 SIMD_INLINE c_v128 c_v128_unziphi_8(c_v128 a, c_v128 b) {
-  return big_endian() ? _c_v128_unzip_8(b, a, 0) : _c_v128_unzip_8(b, a, 1);
+  return CONFIG_BIG_ENDIAN ? _c_v128_unzip_8(b, a, 0)
+                           : _c_v128_unzip_8(b, a, 1);
 }
 
 SIMD_INLINE c_v128 _c_v128_unzip_16(c_v128 a, c_v128 b, int mode) {
@@ -438,11 +441,13 @@
 }
 
 SIMD_INLINE c_v128 c_v128_unziplo_16(c_v128 a, c_v128 b) {
-  return big_endian() ? _c_v128_unzip_16(a, b, 1) : _c_v128_unzip_16(a, b, 0);
+  return CONFIG_BIG_ENDIAN ? _c_v128_unzip_16(a, b, 1)
+                           : _c_v128_unzip_16(a, b, 0);
 }
 
 SIMD_INLINE c_v128 c_v128_unziphi_16(c_v128 a, c_v128 b) {
-  return big_endian() ? _c_v128_unzip_16(b, a, 0) : _c_v128_unzip_16(b, a, 1);
+  return CONFIG_BIG_ENDIAN ? _c_v128_unzip_16(b, a, 0)
+                           : _c_v128_unzip_16(b, a, 1);
 }
 
 SIMD_INLINE c_v128 _c_v128_unzip_32(c_v128 a, c_v128 b, int mode) {
@@ -462,11 +467,13 @@
 }
 
 SIMD_INLINE c_v128 c_v128_unziplo_32(c_v128 a, c_v128 b) {
-  return big_endian() ? _c_v128_unzip_32(a, b, 1) : _c_v128_unzip_32(a, b, 0);
+  return CONFIG_BIG_ENDIAN ? _c_v128_unzip_32(a, b, 1)
+                           : _c_v128_unzip_32(a, b, 0);
 }
 
 SIMD_INLINE c_v128 c_v128_unziphi_32(c_v128 a, c_v128 b) {
-  return big_endian() ? _c_v128_unzip_32(b, a, 0) : _c_v128_unzip_32(b, a, 1);
+  return CONFIG_BIG_ENDIAN ? _c_v128_unzip_32(b, a, 0)
+                           : _c_v128_unzip_32(b, a, 1);
 }
 
 SIMD_INLINE c_v128 c_v128_unpack_u8_s16(c_v64 a) {
@@ -535,8 +542,8 @@
               c);
       abort();
     }
-    t.u8[c] =
-        a.u8[big_endian() ? 15 - (pattern.u8[c] & 15) : pattern.u8[c] & 15];
+    t.u8[c] = a.u8[CONFIG_BIG_ENDIAN ? 15 - (pattern.u8[c] & 15)
+                                     : pattern.u8[c] & 15];
   }
   return t;
 }