/// <summary>
/// creates the vectordata of an image
/// </summary>
/// <param name="ud">the device that created the Texture </param>
/// <param name="data">the image to analyze</param>
/// <remarks>
/// Texture expected to be be R8G8B8A8_UInt format
/// </remarks>
public VectorGraphic AnalyzeImage(UtilityDevice ud, Texture2D data)
{
DataBox dataBox = ud.Context.MapSubresource(data,0,MapMode.Read,MapFlags.None);
int dataSize = dataBox.RowPitch * data.Description.Height;
byte[] rawData = new byte[dataSize];
System.Runtime.InteropServices.Marshal.Copy(dataBox.DataPointer,rawData,0,dataSize - 1);
VectorGraphic VG = new VectorGraphic(rawData, data.Description.Width, data.Description.Height, dataBox.RowPitch);
ud.Context.UnmapSubresource(data, 0);
return VG;
}
public void ImageAnalyzeTest()
{
UtilityDevice ud = new UtilityDevice(SharpDX.Direct3D.DriverType.Hardware);
Texture2D inputTex = Texture2D.FromFile<Texture2D>(ud,"Util\\VectorizeTest.png",new ImageLoadInformation()
{
BindFlags = BindFlags.None,
CpuAccessFlags = CpuAccessFlags.Read,
Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm,
Usage = ResourceUsage.Staging
});
int dWidth = inputTex.Description.Width * 2;
int dHeight = inputTex.Description.Height * 2;
Texture2D outputTex = new Texture2D(ud, new Texture2DDescription()
{
ArraySize = inputTex.Description.ArraySize,
BindFlags = BindFlags.None,
CpuAccessFlags = CpuAccessFlags.Write,
Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm,
Height = dHeight,
MipLevels = 1,
OptionFlags = ResourceOptionFlags.None,
SampleDescription = inputTex.Description.SampleDescription,
Usage =ResourceUsage.Staging,
Width = dWidth
});//make a matching texture
ImageAnalyzer analyzer = new ImageAnalyzer();
VectorGraphic VG = analyzer.AnalyzeImage(ud, inputTex);
byte[] imageData = VG.GetImage(dWidth,dHeight,2);
DataBox dataBox = ud.Context.MapSubresource(outputTex, 0, MapMode.Write, MapFlags.None);
byte[] texData = new byte[dataBox.RowPitch * outputTex.Description.Height];
for (int x = 0; x < outputTex.Description.Width; x++)
{
for (int y = 0; y < outputTex.Description.Height; y++)
{
int imageIndex = (x * 4) + (y * (outputTex.Description.Width*4));
int texIndex = (x * 4) + (y * dataBox.RowPitch);
texData[texIndex] = imageData[imageIndex];
texData[texIndex+1] = imageData[imageIndex+1];
texData[texIndex+2] = imageData[imageIndex+2];
texData[texIndex+3] = imageData[imageIndex+3];
}
}
Utilities.Write(dataBox.DataPointer, texData, 0, texData.Length);
ud.Context.UnmapSubresource(outputTex, 0);
Texture2D.ToFile(ud.Context, outputTex, ImageFileFormat.Png, "c:\\dan\\vectorizedOutput.png");
}
