public static TextureLoadInfo LoadToArgbImage(string file)
{
var loadInfo = LoadFirstLayer(file);
if (loadInfo == null)
{
return(null);
}
if (loadInfo.Format == SharpDX.DXGI.Format.R8G8B8A8_UNorm)
{
return(loadInfo);
}
loadInfo.Layers[0] = DxtHelper.Decompress(loadInfo.Width, loadInfo.Height, loadInfo.Layers[0], loadInfo.Format);
loadInfo.Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm;
return(loadInfo);
}
public static unsafe TextureLoadInfo LoadToBestMatchingImage(Stream file, int targetWidth, int targetHeight)
{
if (file == null)
{
return(null);
}
var reader = new BinaryReader(file);
var header = reader.Read <BlpHeader>();
var layer = 0;
if (header.MipLevels != 0)
{
for (; layer < 16; ++layer)
{
var w = Math.Max(header.Width >> layer, 1);
var h = Math.Max(header.Height >> layer, 1);
var lw = Math.Max(header.Width >> (layer + 1), 1);
var lh = Math.Max(header.Height >> (layer + 1), 1);
if (w == h && lw == lh && lw == w && w == 1)
{
break;
}
if (w >= targetWidth && lw <= targetWidth && h >= targetHeight && lh <= targetHeight)
{
break;
}
}
}
if (layer != 0 && (header.Sizes[layer] == 0 || header.Offsets[layer] == 0))
{
for (; layer > 0; --layer)
{
if (header.Sizes[layer] != 0 && header.Offsets[layer] != 0)
{
break;
}
}
}
file.Position = 0;
var loadInfo = LoadLayer(file, layer);
if (loadInfo == null)
{
return(null);
}
loadInfo.Width = Math.Max(loadInfo.Width >> layer, 1);
loadInfo.Height = Math.Max(loadInfo.Height >> layer, 1);
if (loadInfo.Format == SharpDX.DXGI.Format.R8G8B8A8_UNorm)
{
return(loadInfo);
}
loadInfo.Layers[0] = DxtHelper.Decompress(loadInfo.Width, loadInfo.Height, loadInfo.Layers[0], loadInfo.Format);
loadInfo.Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm;
return(loadInfo);
}
private void DecompressData()
{
mLoadInfo.Layers[0] = DxtHelper.Decompress(mLoadInfo.Width, mLoadInfo.Height, mLoadInfo.Layers[0],
mLoadInfo.Format);
mLoadInfo.Format = Format.R8G8B8A8_UNorm;
}
