From: hackbard <hackbard>
Date: Thu, 6 Oct 2005 15:07:42 +0000 (+0000)
Subject: tool to create a color fade table
X-Git-Url: https://hackdaworld.org/gitweb/?p=physik%2Fnlsop.git;a=commitdiff_plain;h=228154b9c5ef05a4393a7a41d2f6b45675c9feed;ds=sidebyside

tool to create a color fade table
---

diff --git a/create_color_table.c b/create_color_table.c
new file mode 100644
index 0000000..aaa1e8c
--- /dev/null
+++ b/create_color_table.c
@@ -0,0 +1,60 @@
+/*
+ * unable to use gimp?
+ * me too!
+ *
+ */
+
+#include <stdio.h>
+#include "bmp.h"
+
+int main(int argc,char **argv) {
+
+	t_bmp bmp;
+	int i,j;
+	char val;
+	int off;
+
+	bmp_init(&bmp,2);
+
+	bmp.width=40;
+	bmp.height=120;
+	bmp.mode=WRITE;
+	if(argv[1][0]=='c') strcpy(bmp.file,"c-col.bmp");
+	else strcpy(bmp.file,"p-col.bmp");
+
+	bmp_alloc_map(&bmp);
+	
+	for(i=0;i<bmp.height;i++) {
+		if(argv[1][0]=='c') {
+			for(j=0;j<bmp.width;j++) {
+				off=i*bmp.width+j;
+				val=i*255/bmp.height;
+				bmp.map[off].r=val;
+				bmp.map[off].g=val;
+				bmp.map[off].b=0xff;
+			}
+		} else {
+			for(j=0;j<bmp.width;j++) {
+				off=i*bmp.width+j;
+				if(i<bmp.height/2) {
+					val=i*255/(bmp.height/2); 
+					bmp.map[off].b=val;
+					bmp.map[off].g=0;
+					bmp.map[off].g=0;
+				} else {
+					val=(i-bmp.height/2)*255/(bmp.height/2);
+					bmp.map[off].b=0xff;
+					bmp.map[off].g=val;
+					bmp.map[off].b=0;
+				}
+			}
+
+		}
+	}
+
+	bmp_write_file(&bmp);
+
+	bmp_shutdown(&bmp);
+
+	return 1;
+}