private static void Save(Resource res, Stream stream, ImageFileFormat fmt)
{
var texture = res as Texture2D;
var textureCopy = new Texture2D(MyRender11.Device, new Texture2DDescription
{
Width = (int)texture.Description.Width,
Height = (int)texture.Description.Height,
MipLevels = 1,
ArraySize = 1,
Format = texture.Description.Format,
Usage = ResourceUsage.Staging,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
BindFlags = BindFlags.None,
CpuAccessFlags = CpuAccessFlags.Read,
OptionFlags = ResourceOptionFlags.None
});
RC.CopyResource(res, textureCopy);
DataStream dataStream;
var dataBox = RC.MapSubresource(
textureCopy,
0,
0,
MapMode.Read,
MapFlags.None,
out dataStream);
var dataRectangle = new DataRectangle
{
DataPointer = dataStream.DataPointer,
Pitch = dataBox.RowPitch
};
var bitmap = new Bitmap(
MyRender11.WIC,
textureCopy.Description.Width,
textureCopy.Description.Height,
PixelFormatFromFormat(textureCopy.Description.Format), // TODO: should use some conversion from textureCopy.Description.Format
dataRectangle);
using (var wicStream = new WICStream(MyRender11.WIC, stream))
{
BitmapEncoder bitmapEncoder;
switch (fmt)
{
case ImageFileFormat.Png:
bitmapEncoder = new PngBitmapEncoder(MyRender11.WIC, wicStream);
break;
case ImageFileFormat.Jpg:
bitmapEncoder = new JpegBitmapEncoder(MyRender11.WIC, wicStream);
break;
case ImageFileFormat.Bmp:
bitmapEncoder = new BmpBitmapEncoder(MyRender11.WIC, wicStream);
break;
default:
MyRenderProxy.Assert(false, "Unsupported file format.");
bitmapEncoder = null;
break;
}
if (bitmapEncoder != null)
{
using (var bitmapFrameEncode = new BitmapFrameEncode(bitmapEncoder))
{
bitmapFrameEncode.Initialize();
bitmapFrameEncode.SetSize(bitmap.Size.Width, bitmap.Size.Height);
var pixelFormat = PixelFormat.FormatDontCare;
bitmapFrameEncode.SetPixelFormat(ref pixelFormat);
bitmapFrameEncode.WriteSource(bitmap);
bitmapFrameEncode.Commit();
bitmapEncoder.Commit();
}
bitmapEncoder.Dispose();
}
}
RC.UnmapSubresource(textureCopy, 0);
textureCopy.Dispose();
bitmap.Dispose();
}