public DTX1Block(DTX1Palette palette, byte[] pixels)
{
_palette = palette;
_pixels = pixels;
}
private void DXT1(Stream stream)
{
var pixelW = _header.dwWidth;
var pixelH = _header.dwHeight;
var rows = pixelW / 4;
var cols = pixelH / 4;
var paleteCount = rows * cols;
byte[] color1 = new byte[2];
byte[] color2 = new byte[2];
var pixelblock = new byte[4];
List<DTX1Block> blocks = new List<DTX1Block>();
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
stream.Read(color1, 0, 2);
stream.Read(color2, 0, 2);
var palette = new DTX1Palette(color1, color2);
stream.Read(pixelblock, 0, 4);
var block = new DTX1Block(palette, pixelblock);
blocks.Add(block);
}
}
//lay the pixels out in a bitmap fashion
int[] pixels = new int[pixelW * pixelH * 4];
Color[] cpixels = new Color[pixelW * pixelH];
var bmp = new Bitmap((int)pixelW, (int)pixelH);
//var bsource = System.Windows.Media.Imaging.BitmapSource.Create(pixelW,pixelH,96,96, System.Windows.Media.PixelFormats.Rgb24,null,
/*
for (int i = 0; i < pixelH; i++)
{
for(int j = 0; j < pixelW; j++)
{
switch(i%5)
{
case 0:
bmp.SetPixel(j, i, Color.Blue);
break;
case 1:
bmp.SetPixel(j, i, Color.Green);
break;
case 2:
bmp.SetPixel(j, i, Color.White);
break;
case 3:
bmp.SetPixel(j, i, Color.Black);
break;
case 4:
bmp.SetPixel(j, i, Color.Red);
break;
}
}
}*/
for (int i = 0; i < pixelH; i++)
{
var offset = (int)(i * pixelH); //* 4;
for (int j = 0; j < pixelW; j++)
{
int blockoffset = i / 4;
var block = blocks.ElementAt(blockoffset + (j / 4 + i / 4));
//which pixel in block is needed
int p = (i % 4) * 4 + j % 4;
var c = block.GetPixel(p);
//pixels[j * offset]
var color = Color.FromArgb(0,c.Red,c.Green,c.Blue);
//var color = Color.FromArgb(0, 250, 0, 0);
//cpixels[offset+j] = Color.FromArgb(255,c.Red,c.Green,c.Blue);
bmp.SetPixel(j, i, color);
}
}
_bitmap = bmp;
}
