port ARGB to 565 dithering AVX2 code to GCC.

include/libyuv/row.h

Index: include/libyuv/row.h
diff --git a/include/libyuv/row.h b/include/libyuv/row.h
index 5352209b340c29f15e96f70c00674c0a53399483..9bb6a7d1ee55e12fb0f7fbf02fae44caf3c7728f 100644
--- a/include/libyuv/row.h
+++ b/include/libyuv/row.h
@@ -182,36 +182,6 @@ extern "C" {
 #define HAS_SOBELYROW_SSE2
 #endif
 
-// The following are also available on x64 Visual C.
-#if !defined(LIBYUV_DISABLE_X86) && defined (_M_X64) && \
-    (!defined(__clang__) || defined(__SSSE3__))
-#define HAS_I422ALPHATOABGRROW_SSSE3
-#define HAS_I422ALPHATOARGBROW_SSSE3
-#define HAS_I422TOABGRROW_SSSE3
-#define HAS_I422TOARGBROW_SSSE3
-#endif
-
-// The following are available for AVX2 Visual C and clangcl 32 bit:
-// TODO(fbarchard): Port to gcc.
-#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && \
-    (defined(VISUALC_HAS_AVX2) || defined(CLANG_HAS_AVX2))
-#define HAS_ARGB1555TOARGBROW_AVX2
-#define HAS_ARGB4444TOARGBROW_AVX2
-#define HAS_ARGBTOARGB1555ROW_AVX2
-#define HAS_ARGBTOARGB4444ROW_AVX2
-#define HAS_ARGBTORGB565DITHERROW_AVX2
-#define HAS_ARGBTORGB565ROW_AVX2
-#define HAS_I411TOARGBROW_AVX2
-#define HAS_I422TOARGB1555ROW_AVX2
-#define HAS_I422TOARGB4444ROW_AVX2
-#define HAS_I422TORGB565ROW_AVX2
-#define HAS_I444TOABGRROW_AVX2
-#define HAS_I444TOARGBROW_AVX2
-#define HAS_J400TOARGBROW_AVX2
-#define HAS_NV12TORGB565ROW_AVX2
-#define HAS_RGB565TOARGBROW_AVX2
-#endif
-
 // The following are available on all x86 platforms, but
 // require VS2012, clang 3.4 or gcc 4.7.
 // The code supports NaCL but requires a new compiler and validator.
@@ -222,6 +192,7 @@ extern "C" {
 #define HAS_ARGBMIRRORROW_AVX2
 #define HAS_ARGBPOLYNOMIALROW_AVX2
 #define HAS_ARGBSHUFFLEROW_AVX2
+#define HAS_ARGBTORGB565DITHERROW_AVX2
 #define HAS_ARGBTOUVROW_AVX2
 #define HAS_ARGBTOYJROW_AVX2
 #define HAS_ARGBTOYROW_AVX2
@@ -262,6 +233,35 @@ extern "C" {
 #define HAS_ARGBUNATTENUATEROW_AVX2
 #endif
 
+// The following are available for AVX2 Visual C and clangcl 32 bit:
+// TODO(fbarchard): Port to gcc.
+#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && \
+    (defined(VISUALC_HAS_AVX2) || defined(CLANG_HAS_AVX2))
+#define HAS_ARGB1555TOARGBROW_AVX2
+#define HAS_ARGB4444TOARGBROW_AVX2
+#define HAS_ARGBTOARGB1555ROW_AVX2
+#define HAS_ARGBTOARGB4444ROW_AVX2
+#define HAS_ARGBTORGB565ROW_AVX2
+#define HAS_I411TOARGBROW_AVX2
+#define HAS_I422TOARGB1555ROW_AVX2
+#define HAS_I422TOARGB4444ROW_AVX2
+#define HAS_I422TORGB565ROW_AVX2
+#define HAS_I444TOABGRROW_AVX2
+#define HAS_I444TOARGBROW_AVX2
+#define HAS_J400TOARGBROW_AVX2
+#define HAS_NV12TORGB565ROW_AVX2
+#define HAS_RGB565TOARGBROW_AVX2
+#endif
+
+// The following are also available on x64 Visual C.
+#if !defined(LIBYUV_DISABLE_X86) && defined (_M_X64) && \
+    (!defined(__clang__) || defined(__SSSE3__))
+#define HAS_I422ALPHATOABGRROW_SSSE3
+#define HAS_I422ALPHATOARGBROW_SSSE3
+#define HAS_I422TOABGRROW_SSSE3
+#define HAS_I422TOARGBROW_SSSE3
+#endif
+
 // The following are available on Neon platforms:
 #if !defined(LIBYUV_DISABLE_NEON) && \
     (defined(__aarch64__) || defined(__ARM_NEON__) || defined(LIBYUV_NEON))