public static T[,] MapReadTexture <T>(SlimDX.Direct3D10.Texture2D texture, int level) where T : struct
{
var d = texture.Map(level, SlimDX.Direct3D10.MapMode.Read, SlimDX.Direct3D10.MapFlags.None);
var sd = texture.Description;
var data = ReadTexture <T>(d, sd.Width, sd.Height);
texture.Unmap(level);
return(data);
}
// SlimDX.Direct3D10
private SlimDX.Direct3D10.ShaderResourceView GetTexture(SlimDX.Direct3D10.Device device, int width, int height, SlimDX.Color4 color)
{
//create the texture
SlimDX.Direct3D10.Texture2D texture = null;
SlimDX.Direct3D10.Texture2DDescription desc2 = new SlimDX.Direct3D10.Texture2DDescription();
desc2.SampleDescription = new SlimDX.DXGI.SampleDescription(1, 0);
desc2.Width = width;
desc2.Height = height;
desc2.MipLevels = 1;
desc2.ArraySize = 1;
desc2.Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm;
desc2.Usage = SlimDX.Direct3D10.ResourceUsage.Dynamic;
desc2.BindFlags = SlimDX.Direct3D10.BindFlags.ShaderResource;
desc2.CpuAccessFlags = SlimDX.Direct3D10.CpuAccessFlags.Write;
texture = new SlimDX.Direct3D10.Texture2D(device, desc2);
// fill the texture with rgba values
SlimDX.DataRectangle rect = texture.Map(0, SlimDX.Direct3D10.MapMode.WriteDiscard, SlimDX.Direct3D10.MapFlags.None);
if (rect.Data.CanWrite)
{
for (int row = 0; row < texture.Description.Height; row++)
{
int rowStart = row * rect.Pitch;
rect.Data.Seek(rowStart, System.IO.SeekOrigin.Begin);
for (int col = 0; col < texture.Description.Width; col++)
{
rect.Data.WriteByte((byte)color.Red);
rect.Data.WriteByte((byte)color.Green);
rect.Data.WriteByte((byte)color.Blue);
rect.Data.WriteByte((byte)color.Alpha);
}
}
}
texture.Unmap(0);
// create shader resource that is what the renderer needs
SlimDX.Direct3D10.ShaderResourceViewDescription desc = new SlimDX.Direct3D10.ShaderResourceViewDescription();
desc.Format = texture.Description.Format;
desc.Dimension = SlimDX.Direct3D10.ShaderResourceViewDimension.Texture2D;
desc.MostDetailedMip = 0;
desc.MipLevels = 1;
SlimDX.Direct3D10.ShaderResourceView srv = new SlimDX.Direct3D10.ShaderResourceView(device, texture, desc);
return(srv);
}
public static void WriteTexture <T>(SlimDX.Direct3D10.Texture2D texture, T[,] data, int TSize)
where T : struct
{
var dr = texture.Map(0, SlimDX.Direct3D10.MapMode.WriteDiscard, SlimDX.Direct3D10.MapFlags.None);
int width = data.GetLength(1);
if (dr.Pitch == data.GetLength(1) * TSize)
{
dr.Data.WriteRange(Common.Utils.Flatten(data));
}
else
{
for (int y = 0; y < texture.Description.Height; y++)
{
dr.Data.WriteRange(Common.Utils.GetRow(data, y));
dr.Data.Seek(dr.Pitch - width * TSize, System.IO.SeekOrigin.Current);
}
}
texture.Unmap(0);
}
public static T[,] CopyReadTexture <T>(SlimDX.Direct3D10.Texture2D texture, int level) where T : struct
{
var copy = new SlimDX.Direct3D10.Texture2D(texture.Device, new SlimDX.Direct3D10.Texture2DDescription
{
ArraySize = texture.Description.ArraySize,
BindFlags = SlimDX.Direct3D10.BindFlags.None,
CpuAccessFlags = SlimDX.Direct3D10.CpuAccessFlags.Read,
Format = texture.Description.Format,
Width = texture.Description.Width,
Height = texture.Description.Height,
MipLevels = texture.Description.MipLevels,
Usage = SlimDX.Direct3D10.ResourceUsage.Staging,
SampleDescription = texture.Description.SampleDescription,
OptionFlags = SlimDX.Direct3D10.ResourceOptionFlags.None
});
texture.Device.CopyResource(texture, copy);
var d = copy.Map(level, SlimDX.Direct3D10.MapMode.Read, SlimDX.Direct3D10.MapFlags.None);
var sd = copy.Description;
var data = ReadTexture <T>(d, sd.Width, sd.Height);
copy.Unmap(level);
copy.Dispose();
return(data);
}
