I made the JSP one ;)
<%@ page import="java.awt.*" %>
<%@ page import="java.awt.image.*" %>
<%@ page import="java.io.*" %>
<%@ page import="java.util.*" %>
<%@ page import="javax.imageio.*" %>
<%!
public int readInt(RandomAccessFile ra)
throws IOException
{
int b4 = (int) ra.read();
int b3 = (int) ra.read();
int b2 = (int) ra.read();
int b1 = (int) ra.read();
return (b1 << 24) | (b2 << 16) | (b3 << 8) | b4;
}
public int readShort(RandomAccessFile ra)
throws IOException
{
int b2 = (int) ra.read();
int b1 = (int) ra.read();
return ((b1 << 8) | b2);
}
%>
<%
File file = new File("Crest_268619650.bmp");
//File file = new File("Crest_268607245.bmp");
RandomAccessFile ra = new RandomAccessFile(file, "r");
byte[] content = new byte[4];
ra.read(content, 0, 4);
String ddsSTR = new String(content);
if (ddsSTR.intern() != "DDS ")
{
out.print("Error, NO DDS");
return;
}
readInt(ra); //int size = readInt(ra);
readInt(ra); //int flags = readInt(ra);
int height = readInt(ra) - 4;
int width = readInt(ra);
readShort(ra); //int extra = readShort(ra);
ra.seek(84);
int dxt1 = ra.read(content, 0, 4);
String dxt1STR = new String(content);
if (dxt1STR.intern() != "DXT1")
{
out.print("Error, NO DXT1");
return;
}
ra.seek(128);
response.setContentType("image/png");
BufferedImage buffer = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
for (int y = -1; y < (height / 4); y++)
{
for (int x = 0; x < (width / 4); x++)
{
int color0_16 = readShort(ra);
int color1_16 = readShort(ra);
int r0 = (color0_16 >> 11) << 3;
int g0 = ((color0_16 >> 5) & 63) << 2;
int b0 = (color0_16 & 31) << 3;
int r1 = (color1_16 >> 11) << 3;
int g1 = ((color1_16 >> 5) & 63) << 2;
int b1 = (color1_16 & 31) << 3;
int color0_32 = new Color(r0, g0, b0).getRGB();
int color1_32 = new Color(r1, g1, b1).getRGB();
int color2_32 = new Color((r0 / 2) + (r1 / 2), (g0 / 2) + (g1 / 2), (b0 / 2) + (b1 / 2)).getRGB();
int black = new Color(0, 0, 0).getRGB();
int data = readInt(ra);
for (int yy = 0; yy < 4; yy++)
{
for (int xx = 0; xx < 4; xx++)
{
int bb = data & 3;
data = data >> 2;
int color = 0;
switch(bb)
{
case 0:
color = color0_32;
break;
case 1:
color = color1_32;
break;
case 2:
color = color2_32;
break;
default:
color = black;
break;
}
int locX = x * 4 + xx;
int locY = y * 4 + yy;
buffer.setRGB(Math.abs(locX), Math.abs(locY), color);
}
}
}
}
OutputStream os = response.getOutputStream();
ImageIO.write(buffer, "png", os);
%>
