initiate plugins branch

2025-12-30 02:12:30 +01:00 · 2000-12-03 18:58:41 +00:00
parent 932cfc1bd4
commit 7aadc1ef00
30 changed files with 15488 additions and 0 deletions
--- a/plugins/libwmfun/bilinear.c
+++ b/plugins/libwmfun/bilinear.c
@@ -0,0 +1,85 @@
+/*
+ *  libwmfun - WindowMaker texture function library
+ *  Copyright (C) 1999 Tobias Gloth
+ * 
+ *  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.
+ */
+
+/*
+ * $Id$
+ *
+ * $Log$
+ * Revision 1.1  2000/12/03 18:58:41  id
+ * initiate plugins branch
+ *
+ * Revision 1.1.1.1  1999/02/21 17:16:47  gloth
+ * initial revision
+ *
+ */
+
+#include "generic.h"
+
+RImage *bilinear (int argc, char **argv, int width, int height,
+	int relief) {
+
+	int color[4][3];
+	RImage *image;
+	unsigned char *cptr;
+	int i, j, k;
+
+	argc--; argv++;
+
+	if (!start_image ("bilinear", argc, 4, 5, width, height, &image)) {
+		return (RImage *)0;
+	}
+
+	for (i=0; i<4; i++) {
+		if (!parse_color (argv[i], color[i])) {
+			error ("can't parse color: \"%s\"\n", argv[i]);
+			return 0;
+		}
+	}
+
+	cptr = image->data;
+    for (i=0; i<height; i++) {
+		int b = 0xff * i / height;
+		int t = 0xff - b;
+
+       	for (j=0; j<width; j++) {
+			int r = 0xff * j / width;
+			int l = 0xff - r;
+			int f[4];
+
+			f[0] = (l*t) >> 8;
+			f[1] = (r*t) >> 8;
+			f[2] = (l*b) >> 8;
+			f[3] = (r*b) >> 8;
+
+			for (k=0; k<3; k++) {
+				*cptr++ =
+					( f[0] * color[0][k] +
+					  f[1] * color[1][k] +
+					  f[2] * color[2][k] +
+					  f[3] * color[3][k] ) >> 8;
+			}
+
+			if (RRGBAFormat==image->format)
+				cptr++;
+		}
+	}
+	return image;
+}
+