From ef1ee362b36893cd1cc1e9c7de378e9cb239b0e8 Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rsbultje@gmail.com>
Date: Wed, 29 Jun 2011 09:39:43 -0700
Subject: swscale: implement >8bit scaling support.

This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
---
 libswscale/ppc/swscale_altivec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libswscale/ppc')

diff --git a/libswscale/ppc/swscale_altivec.c b/libswscale/ppc/swscale_altivec.c
index 396b00ccc6..6fb3de0ee7 100644
--- a/libswscale/ppc/swscale_altivec.c
+++ b/libswscale/ppc/swscale_altivec.c
@@ -406,7 +406,9 @@ void ff_sws_init_swScale_altivec(SwsContext *c)
     if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
         return;
 
-    c->hScale       = hScale_altivec_real;
+    if (c->scalingBpp == 8) {
+        c->hScale       = hScale_altivec_real;
+    }
     if (!is16BPS(dstFormat) && !is9_OR_10BPS(dstFormat) &&
         dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21 &&
         !c->alpPixBuf) {
-- 
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