public ShaderResourceView CreateTextureView(int width, int height, FillColor4 fill)
{
using (var texture = CreateTexture(width, height, fill)) {
return(new ShaderResourceView(Device, texture, new ShaderResourceViewDescription {
Format = texture.Description.Format,
Dimension = ShaderResourceViewDimension.Texture2D,
MostDetailedMip = 0,
MipLevels = 1
}));
}
}
public ShaderResourceView CreateTexture(int width, int height, FillColor4 fill)
{
var texture = new Texture2D(Device, new Texture2DDescription {
SampleDescription = new SampleDescription(1, 0),
Width = width,
Height = height,
MipLevels = 1,
ArraySize = 1,
Format = Format.R32G32B32A32_Float,
Usage = ResourceUsage.Dynamic,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.Write
});
var rect = DeviceContext.MapSubresource(texture, 0, MapMode.WriteDiscard, MapFlags.None);
if (rect.Data.CanWrite)
{
for (var y = 0; y < width; y++)
{
var rowStart = y * rect.RowPitch;
rect.Data.Seek(rowStart, System.IO.SeekOrigin.Begin);
for (var x = 0; x < width; x++)
{
var c = fill.Invoke(x, y);
rect.Data.Write(c.Red);
rect.Data.Write(c.Green);
rect.Data.Write(c.Blue);
rect.Data.Write(c.Alpha);
}
}
}
DeviceContext.UnmapSubresource(texture, 0);
var view = new ShaderResourceView(Device, texture, new ShaderResourceViewDescription {
Format = texture.Description.Format,
Dimension = ShaderResourceViewDimension.Texture2D,
MostDetailedMip = 0,
MipLevels = 1
});
texture.Dispose();
return(view);
}
