From a7ae563d3f1152cd594a12b00aeac7866a96b189 Mon Sep 17 00:00:00 2001
From: Martin Nilsson <mani@lysator.liu.se>
Date: Sun, 14 Dec 2003 23:48:36 +0100
Subject: [PATCH] Color cycle support function.
Rev: src/modules/Image/encodings/atari.c:1.3
Rev: src/modules/Image/encodings/atari.h:1.3
---
src/modules/Image/encodings/atari.c | 22 +++++++++++++++++++++-
src/modules/Image/encodings/atari.h | 4 +++-
2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/src/modules/Image/encodings/atari.c b/src/modules/Image/encodings/atari.c
index 5f2f89ecb4..2602fed317 100644
--- a/src/modules/Image/encodings/atari.c
+++ b/src/modules/Image/encodings/atari.c
@@ -2,7 +2,7 @@
|| This file is part of Pike. For copyright information see COPYRIGHT.
|| Pike is distributed under GPL, LGPL and MPL. See the file COPYING
|| for more information.
-|| $Id: atari.c,v 1.2 2003/12/13 23:33:21 nilsson Exp $
+|| $Id: atari.c,v 1.3 2003/12/14 22:48:36 nilsson Exp $
*/
#include "global.h"
@@ -13,6 +13,26 @@
extern struct program *image_program;
+void rotate_atari_palette(struct atari_palette* pal, unsigned int left,
+ unsigned int right)
+{
+ rgb_group tmp;
+ unsigned int i;
+
+ if(right>left) {
+ tmp = pal->colors[right];
+ for(i=right; i>left; i--)
+ pal->colors[i] = pal->colors[i-1];
+ pal->colors[left] = tmp;
+ }
+ else {
+ tmp = pal->colors[left];
+ for(i=left; i<right; i++)
+ pal->colors[i] = pal->colors[i+1];
+ pal->colors[right] = tmp;
+ }
+}
+
/* pal is 2*size of palette data */
struct atari_palette* decode_atari_palette(unsigned char *pal,
unsigned int size)
diff --git a/src/modules/Image/encodings/atari.h b/src/modules/Image/encodings/atari.h
index 1bac4d693a..8f5ae3cd6a 100644
--- a/src/modules/Image/encodings/atari.h
+++ b/src/modules/Image/encodings/atari.h
@@ -2,7 +2,7 @@
|| This file is part of Pike. For copyright information see COPYRIGHT.
|| Pike is distributed under GPL, LGPL and MPL. See the file COPYING
|| for more information.
-|| $Id: atari.h,v 1.2 2003/12/13 23:33:09 nilsson Exp $
+|| $Id: atari.h,v 1.3 2003/12/14 22:48:36 nilsson Exp $
*/
#include "global.h"
@@ -16,6 +16,8 @@ struct atari_palette
rgb_group *colors;
};
+void rotate_atari_palette(struct atari_palette* pal, unsigned int left,
+ unsigned int right);
struct atari_palette* decode_atari_palette(unsigned char *pal,
unsigned int size);
struct object* decode_atari_screendump(unsigned char *q,
--
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