From c27516003fb01b7e0cde9d5bbe4f2cbb747005ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Schieli?= <cschieli@gmail.com>
Date: Fri, 27 Feb 2009 22:23:20 +0000
Subject: [PATCH] Add an isALPHA macro to check if pixel format has alpha
channel
Originally committed as revision 28747 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
---
libswscale/swscale_internal.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index cf157428b38..cdf3754d142 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -273,6 +273,13 @@ const char *sws_format_name(int format);
|| (x)==PIX_FMT_MONOBLACK \
|| (x)==PIX_FMT_MONOWHITE \
)
+#define isALPHA(x) ( \
+ (x)==PIX_FMT_BGR32 \
+ || (x)==PIX_FMT_BGR32_1 \
+ || (x)==PIX_FMT_RGB32 \
+ || (x)==PIX_FMT_RGB32_1 \
+ || (x)==PIX_FMT_YUVA420P \
+ )
static inline int fmt_depth(int fmt)
{
--
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