public void Create(string xpacksFolder, ImageMapInformation map, UpdateCallback updateCallback, CompletedCallback completedCallback)
{
IsFetchingData = true;
Cancel = false;
try
{
// Create the Main texture.
CreateTexture(xpacksFolder, map);
if (!Cancel)
{
completedCallback?.Invoke(true);
}
}
catch
{
completedCallback?.Invoke(false); // Report in that something went wrong.
}
IsFetchingData = false;
}
public void SetCoverage(ref ImageMapInformation map, double desiredWidth, double desiredHeight)
{
map.CoverageX = Math.Max(desiredWidth, desiredHeight);
map.CoverageZ = map.CoverageX;
}
private void CreateTexture(string xpacksFolder, ImageMapInformation map)
{
SharpDX.Direct3D11.Device DX11_Device = new SharpDX.Direct3D11.Device(SharpDX.Direct3D.DriverType.Hardware, DeviceCreationFlags.None);
string filename = "", filenameIntermediate = "";
int width, height;
filename = Path.Combine(xpacksFolder, map.Filename);
filenameIntermediate = Path.Combine(xpacksFolder, map.FilenameIntermediate);
width = map.Width;
height = map.Height;
// Create the file to the destination folder.
Texture2DDescription textureDesc = new Texture2DDescription()
{
Width = width,
Height = height,
MipLevels = 1,
ArraySize = 1,
Format = Format.R8G8B8A8_UNorm,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Dynamic,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None
};
var tex = new Texture2D(DX11_Device, textureDesc);
double centrex = width * 0.5;
byte[] buffer = new byte[4 * width * height];
int bufferoffset = 0;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
double dx = Math.Abs(centrex - x) / centrex * 1.1;
double dy = 1.2 - (y / (double)height * 1.1);
double radius = Math.Sqrt(dx * dx + dy * dy);
double rainbow = radius * 2.0 - 1.0;
if (rainbow < 0 || rainbow > 1)
{
buffer[bufferoffset] = (int)0;
}
else
{
var color = HSL2RGB(rainbow, 0.5, 0.5);
buffer[bufferoffset] = color.R;
buffer[bufferoffset + 1] = color.G;
buffer[bufferoffset + 2] = color.B;
buffer[bufferoffset + 3] = color.A;
}
bufferoffset += 4;
}
}
// Copy the Buffer.
DataStream ds;
DataBox db = DX11_Device.ImmediateContext.MapSubresource(tex, 0, 0, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None, out ds);
Marshal.Copy(buffer, 0, db.DataPointer, buffer.Length); // Write with Marshal as it is quicker than DataStream.
DX11_Device.ImmediateContext.UnmapSubresource(tex, 0);
// Save the image.
ImageFileFormat iff = filename.ToLower().EndsWith(".jpg") ? ImageFileFormat.Jpg : ImageFileFormat.Png;
string folder = Path.GetDirectoryName(filename);
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder); // Create the folder if it doesn't exist.
}
Texture2D.ToFile(DX11_Device.ImmediateContext, tex, iff, filename);
// Dispose.
DX11_Device.Dispose(); DX11_Device = null;
}
