From 311e440f30c218015d17fb390f50829f430d5128 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juha=20Vehvil=C3=A4inen?= <jusu@users.sourceforge.net>
Date: Tue, 9 Jul 2002 12:19:44 +0000
Subject: PixelPack002 by Olaf Matthes

svn path=/trunk/Framestein/; revision=30
---
 Plugins/deinterlace.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 Plugins/deinterlace.c

(limited to 'Plugins/deinterlace.c')

diff --git a/Plugins/deinterlace.c b/Plugins/deinterlace.c
new file mode 100644
index 0000000..ca12568
--- /dev/null
+++ b/Plugins/deinterlace.c
@@ -0,0 +1,82 @@
+//
+//  deinterlace - deinterlacing through pixel / line repitition
+//  
+//	written by Olaf Matthes <olaf.matthes@gmx.de>
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 2 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//   
+//  usage: deinterlace <line> [ with line = 0 or 1 ]
+//
+
+#include <stdio.h>
+#include <string.h>
+#include "plugin.h"
+
+void perform_effect(struct frame f, struct args a)
+{
+	short x, y, line = 0;
+	byte pixelsize = f.pixelformat/8;
+	pixel16 *p16, *c16;
+	pixel24 *p24, *c24;
+	pixel32 *p32, *c32;
+	char *t;
+
+	// get params
+	if(a.s)
+	{
+		line = atoi(a.s);
+	}	// else keep 0
+
+	printf("deinterlace: %d\n", line);
+
+	y = f.height - line;
+	x = f.width;
+
+	switch(f.pixelformat)
+	{
+		case 16:
+			while(y > 0)
+			{
+				p16 = scanline16(f, y);
+				c16 = scanline16(f, y-1);
+				memcpy(p16, c16, x*pixelsize);
+				y -= 2;
+			}
+			break;
+		case 24:
+			while(y > 0)
+			{
+				p24 = scanline24(f, y);
+				c24 = scanline24(f, y-1);
+				memcpy(p24, c24, x*pixelsize);
+				y -= 2;
+			}
+			break;
+		case 32:
+			while(y > 0)
+			{
+				p32 = scanline32(f, y);
+				c32 = scanline32(f, y-1);
+				memcpy(p32, c32, x*pixelsize);
+				y -= 2;
+			}
+			break;
+	}
+}
+
+void perform_copy(struct frame f1, struct frame f2, struct args a)
+{
+	printf("Using deinterlace as copy operation does nothing!\n");
+}
-- 
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