public D3D11Material(string name, D3D11Shader shader, bool enableDepth, ImageBytes texture, Color4 color)
{
Name = name;
Shader = shader;
EnableDepth = enableDepth;
m_textureBytes = texture;
Color = color;
}
//
// https://docs.microsoft.com/en-us/windows/desktop/direct3d11/overviews-direct3d-11-resources-textures-how-to
//
public static void LoadImage(ImageBytes image, Action <DataStream, Format, int, int> callback)
{
var bytes = image.Bytes;
using (var s = new MemoryStream(bytes.Array, bytes.Offset, bytes.Count, false))
using (var factory = new ImagingFactory())
using (var stream = new WICStream(factory, s))
using (var decoder = GetDecoder(factory, image.Format))
{
decoder.Initialize(stream, DecodeOptions.CacheOnDemand);
using (var frame = decoder.GetFrame(0))
{
var format = default(Format);
var stride = frame.Size.Width * 4;
using (var buffer = new DataStream(frame.Size.Height * stride, true, true))
{
if (frame.PixelFormat == PixelFormat.Format32bppBGRA)
{
// OK
format = Format.B8G8R8A8_UNorm;
frame.CopyPixels(stride, buffer);
}
else
{
// Convert
var fc = new FormatConverter(factory);
fc.Initialize(frame, PixelFormat.Format32bppBGR);
fc.CopyPixels(stride, buffer);
format = Format.B8G8R8A8_UNorm;
}
callback(buffer, format, frame.Size.Width, frame.Size.Height);
}
};
}
}
