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using System;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Collections.Generic;
class csv2bmp{
public static void Main( string[] args )
{
byte[,] r = null;
byte[,] g = null;
byte[,] b = null;
byte[,] a = null;
string current = "";
string file = "";
foreach( string s in args ){
if( s.StartsWith( "-" ) ){
current = s;
}else{
if( current == "-a" ){
a = load_csv( s );
}else if( current == "-r" ){
r = load_csv( s );
}else if( current == "-g" ){
g = load_csv( s );
}else if( current == "-b" ){
b = load_csv( s );
}else if( current == "-o" ){
file = s;
}
current = "";
}
}
if( file == "" ){
Console.WriteLine( "error; output file not specified" );
return;
}
int w = 0;
int h = 0;
int rx = (r != null) ? r.GetLength( 0 ) : 0;
int ry = (r != null) ? r.GetLength( 1 ) : 0;
int gx = (g != null) ? g.GetLength( 0 ) : 0;
int gy = (g != null) ? g.GetLength( 1 ) : 0;
int bx = (b != null) ? b.GetLength( 0 ) : 0;
int by = (b != null) ? b.GetLength( 1 ) : 0;
int ax = (a != null) ? a.GetLength( 0 ) : 0;
int ay = (a != null) ? a.GetLength( 1 ) : 0;
if( r != null ){
w = Math.Max( w, rx );
h = Math.Max( h, ry );
}
if( g != null ){
w = Math.Max( w, gx );
h = Math.Max( h, gy );
}
if( b != null ){
w = Math.Max( w, bx );
h = Math.Max( h, by );
}
if( a != null ){
w = Math.Max( w, ax );
h = Math.Max( h, ay );
}
if( w <= 0 || h <= 0 ){
Console.WriteLine( "error; width=" + w + "; height=" + h );
return;
}
Bitmap bmp = new Bitmap( w, h, PixelFormat.Format32bppArgb );
for( int j = 0; j < h; j++ ){
for( int i = 0; i < w; i++ ){
byte red = 0;
if( r != null && i < rx && j < ry ){
red = r[i, j];
}
byte green = 0;
if( g != null && i < gx && j < gy ){
green = g[i, j];
}
byte blue = 0;
if( b != null && i < bx && j < by ){
blue = b[i, j];
}
byte alpha = 0;
if( a != null && i < ax && j < ay ){
alpha = a[i, j];
}
Color c = Color.FromArgb( alpha, red, green, blue );
bmp.SetPixel( i, j, c );
}
}
bmp.Save( file, ImageFormat.Png );
}
public static byte[,] load_csv( string file )
{
int lines = 0;
int max_colum = 0;
List<byte[]> t = new List<byte[]>();
using( StreamReader sr = new StreamReader( file ) ){
string line = "";
while( (line = sr.ReadLine()) != null ){
string[] spl = line.Split( ',' );
byte[] l = new byte[spl.Length];
for( int i = 0; i < l.Length; i++ ){
l[i] = byte.Parse( spl[i] );
}
t.Add( l );
max_colum = Math.Max( max_colum, spl.Length );
lines++;
}
}
byte[,] ret = new byte[max_colum, lines];
for( int j = 0; j < lines; j++ ){
byte[] src = t[j];
for( int i = 0; i < src.Length; i++ ){
ret[i, j] = src[i];
}
}
return ret;
}
}
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