From 9e774af4d91cb3adddfb6acc2024653620e725db Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Tue, 6 Sep 2016 22:13:56 -0400
Subject: IMAGE: Further implementation of Indeo image decoding

---
 image/codecs/indeo/mem.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'image/codecs/indeo/mem.cpp')

diff --git a/image/codecs/indeo/mem.cpp b/image/codecs/indeo/mem.cpp
index 03a39cabb5..53a3236cf6 100644
--- a/image/codecs/indeo/mem.cpp
+++ b/image/codecs/indeo/mem.cpp
@@ -153,5 +153,29 @@ uint16 inv_bits(uint16 val, int nbits) {
 	return res;
 }
 
+uint8 av_clip_uint8(int a) {
+	if (a&(~0xFF)) return (-a) >> 31;
+	else           return a;
+}
+
+unsigned av_clip_uintp2(int a, int p) {
+	if (a & ~((1 << p) - 1)) return -a >> 31 & ((1 << p) - 1);
+	else                   return  a;
+}
+
+
+/*------------------------------------------------------------------------*/
+
+const uint8 ff_zigzag_direct[64] = {
+	0,   1,  8, 16,  9,  2,  3, 10,
+	17, 24, 32, 25, 18, 11,  4,  5,
+	12, 19, 26, 33, 40, 48, 41, 34,
+	27, 20, 13,  6,  7, 14, 21, 28,
+	35, 42, 49, 56, 57, 50, 43, 36,
+	29, 22, 15, 23, 30, 37, 44, 51,
+	58, 59, 52, 45, 38, 31, 39, 46,
+	53, 60, 61, 54, 47, 55, 62, 63
+};
+
 } // End of namespace Indeo
 } // End of namespace Image
-- 
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