public static void GetDXT(Texture2D texture, int i, byte[] bytes, TextureFormat format)
{
Color32[] colors = texture.GetPixels32(i);
uint w = (uint)texture.width >> i;
uint h = (uint)texture.height >> i;
ColorBlock rgba = new ColorBlock();
BlockDXT1 block1 = new BlockDXT1();
BlockDXT5 block5 = new BlockDXT5();
int blocksize = format == TextureFormat.DXT1 ? 8 : 16;
int index = 0;
for (uint y = 0; y < h; y += 4)
{
for (uint x = 0; x < w; x += 4)
{
rgba.init(w, h, colors, x, y);
if (format == TextureFormat.DXT1)
{
QuickCompress.compressDXT1(rgba, block1);
block1.WriteBytes(bytes, index);
}
else
{
QuickCompress.compressDXT5(rgba, block5, 0);
block5.WriteBytes(bytes, index);
}
index += blocksize;
}
}
}
public static void GetDXT(Texture2D texture, int i, byte[] bytes, TextureFormat format)
{
Color32[] colors = texture.GetPixels32(i);
uint w = (uint) texture.width>>i;
uint h = (uint) texture.height>>i;
ColorBlock rgba = new ColorBlock();
BlockDXT1 block1 = new BlockDXT1();
BlockDXT5 block5 = new BlockDXT5();
int blocksize = format == TextureFormat.DXT1 ? 8 : 16;
int index = 0;
for (uint y = 0; y < h; y += 4) {
for (uint x = 0; x < w; x += 4) {
rgba.init(w, h, colors, x, y);
if (format == TextureFormat.DXT1)
{
QuickCompress.compressDXT1(rgba, block1);
block1.WriteBytes(bytes, index);
}
else
{
QuickCompress.compressDXT5(rgba, block5, 0);
block5.WriteBytes(bytes, index);
}
index += blocksize;
}
}
}
public static void compressDXT5(ColorBlock rgba, BlockDXT5 dxtBlock, int iterationCount = 8)
{
compressDXT1(rgba, dxtBlock.color);
compressDXT5A(rgba, ref dxtBlock.alpha, iterationCount);
}