From 0a7a94f2e53bcdb8ac5857eb8c67c16f6f1d0f2f Mon Sep 17 00:00:00 2001
From: Diego Biurrun <diego@biurrun.de>
Date: Thu, 2 Aug 2012 00:55:34 +0200
Subject: x86: Refactor PSWAPD fallback implementations and port to cpuflags

---
 libavutil/x86/x86util.asm | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'libavutil/x86')

diff --git a/libavutil/x86/x86util.asm b/libavutil/x86/x86util.asm
index ca0041acf7..9183d38595 100644
--- a/libavutil/x86/x86util.asm
+++ b/libavutil/x86/x86util.asm
@@ -319,6 +319,18 @@
     %endif
 %endmacro
 
+%macro PSWAPD 2
+%if cpuflag(mmxext)
+    pshufw    %1, %2, q1032
+%elif cpuflag(3dnowext)
+    pswapd    %1, %2
+%elif cpuflag(3dnow)
+    movq      %1, %2
+    psrlq     %1, 32
+    punpckldq %1, %2
+%endif
+%endmacro
+
 %macro DEINTB 5 ; mask, reg1, mask, reg2, optional src to fill masks from
 %ifnum %5
     pand   m%3, m%5, m%4 ; src .. y6 .. y4
-- 
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