public static AnalyzedTexture OpenFile(string input)
{
try
{
using (var file = File.OpenRead(input))
{
if (DDS.StreamIsDDS(file))
{
return(new AnalyzedTexture()
{
Type = TexLoadType.DDS,
Texture = (Texture2D)DDS.FromStream(file)
});
}
}
Generic.LoadResult lr;
using (var file = File.OpenRead(input))
{
lr = Generic.BytesFromStream(file);
}
if (lr.Width != lr.Height)
{
return new AnalyzedTexture()
{
Type = TexLoadType.ErrorNonSquare
}
}
;
if (!MathHelper.IsPowerOfTwo(lr.Width) ||
!MathHelper.IsPowerOfTwo(lr.Height))
{
return new AnalyzedTexture()
{
Type = TexLoadType.ErrorNonPowerOfTwo
}
}
;
bool opaque = true;
//Swap channels + check alpha
for (int i = 0; i < lr.Data.Length; i += 4)
{
var R = lr.Data[i];
var B = lr.Data[i + 2];
var A = lr.Data[i + 3];
lr.Data[i + 2] = R;
lr.Data[i] = B;
if (A != 255)
{
opaque = false;
}
}
var tex = new Texture2D(lr.Width, lr.Height);
tex.SetData(lr.Data);
return(new AnalyzedTexture()
{
Type = opaque ? TexLoadType.Opaque : TexLoadType.Alpha,
Texture = tex
});
}
catch (Exception e)
{
return(new AnalyzedTexture()
{
Type = TexLoadType.ErrorLoad
});
}
}