From 917f55cc037b3c1d76f4f7a1b793d3404171fa6e Mon Sep 17 00:00:00 2001
From: Loren Merritt <lorenm@u.washington.edu>
Date: Fri, 22 Feb 2008 16:53:26 +0000
Subject: [PATCH] cleaner way of writing packed-byte constants. suggested by
Uoti Urpala
Originally committed as revision 12177 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/dsputil.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index 1514a4a3b06..07511de075a 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -50,8 +50,9 @@ void ff_add_png_paeth_prediction(uint8_t *dst, uint8_t *src, uint8_t *top, int w
uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP] = {0, };
uint32_t ff_squareTbl[512] = {0, };
-static const unsigned long pb_7f = 0x7f7f7f7f7f7f7f7fUL;
-static const unsigned long pb_80 = 0x8080808080808080UL;
+// 0x7f7f7f7f or 0x7f7f7f7f7f7f7f7f or whatever, depending on the cpu's native arithmetic size
+#define pb_7f (~0UL/255 * 0x7f)
+#define pb_80 (~0UL/255 * 0x80)
const uint8_t ff_zigzag_direct[64] = {
0, 1, 8, 16, 9, 2, 3, 10,
--
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