static Texture2D MakeGrayLevel(Texture2D img)
{
Xna.Color[] inBufer = new Xna.Color[img.Width * img.Height];
img.GetData(inBufer);
Texture2D grayed = new Texture2D(graphicsDevice, img.Width, img.Height);
Xna.Color[] outBufer = new Xna.Color[img.Width * img.Height];
for (int x = 0; x < img.Width; x++)
{
for (int y = 0; y < img.Height; y++)
{
Xna.Color pixelColor = inBufer[x + y * img.Width];
float brightness = pixelColor.GetBrightness();
int rgb = (int)(255 * GRAYLEVEL_DIM_FACTOR * brightness);
outBufer[x + y * img.Width] = new Xna.Color(rgb, rgb, rgb, pixelColor.A);
}
}
grayed.SetData(outBufer);
return(grayed);
}
/// <summary>
/// Returns a surface with the specified image rendered to it as characters.
/// </summary>
/// <param name="image">The image to render.</param>
/// <returns>The surface.</returns>
public TextSurface GetSurface(Texture2D image)
{
editor.Clear();
image.GetData<Color>(pixels);
System.Threading.Tasks.Parallel.For(0, surface.Width * surface.Height, (i) =>
//for (int i = 0; i < surface.Width * surface.Height; i++)
{
int allR = 0;
int allG = 0;
int allB = 0;
int min = i * fontPixels;
int max = min + fontPixels;
for (int pixel = min; pixel < max; pixel++)
{
Color color = pixels[indexes[pixel]];
allR += color.R;
allG += color.G;
allB += color.B;
}
// print our character
byte sr = (byte)(allR / fontPixels);
byte sg = (byte)(allG / fontPixels);
byte sb = (byte)(allB / fontPixels);
var newColor = new Color(sr, sg, sb);
float sbri = newColor.GetBrightness() * 255;
Point surfacePoint = surface.GetPointFromIndex(i);
if (UseBlockMode)
{
if (sbri > 204)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, 219, newColor); //█
else if (sbri > 152)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, 178, newColor); //▓
else if (sbri > 100)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, 177, newColor); //▒
else if (sbri > 48)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, 176, newColor); //░
else
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, 0, Color.Black);
}
else
{
if (sbri > 230)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'#', newColor);
else if (sbri > 207)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'&', newColor);
else if (sbri > 184)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'$', newColor);
else if (sbri > 161)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'X', newColor);
else if (sbri > 138)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'x', newColor);
else if (sbri > 115)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'=', newColor);
else if (sbri > 92)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'+', newColor);
else if (sbri > 69)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)';', newColor);
else if (sbri > 46)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)':', newColor);
else if (sbri > 23)
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, (int)'.', newColor);
else
editor.SetGlyph(surfacePoint.X, surfacePoint.Y, 0, Color.Black);
}
}
);
return surface;
}