private System.Drawing.Bitmap CreateBitmap(int width, int height, int bitsPerPixel, uint[] buf)
{
System.Drawing.Bitmap bmp;
System.Drawing.Imaging.PixelFormat pixelFormat;
System.Drawing.Color[] colors = null;
switch (bitsPerPixel)
{
case 1:
pixelFormat = System.Drawing.Imaging.PixelFormat.Format1bppIndexed;
colors = new System.Drawing.Color[] { System.Drawing.Color.White, System.Drawing.Color.Black };
break;
case 4:
case 8:
//Not tested
int cColors = 1 << bitsPerPixel;
pixelFormat = (bitsPerPixel == 4) ? System.Drawing.Imaging.PixelFormat.Format4bppIndexed : System.Drawing.Imaging.PixelFormat.Format8bppIndexed;
colors = new System.Drawing.Color[cColors];
for (int i = 0; i < cColors; i++)
{
int intensity = 256 / cColors * i;
colors[i] = System.Drawing.Color.FromArgb(intensity, intensity, intensity);
}
break;
case 16:
pixelFormat = System.Drawing.Imaging.PixelFormat.Format16bppRgb565;
break;
default:
throw new Exception("The bit depth specified, " + bitsPerPixel + ", is not supported.");
}
bmp = new System.Drawing.Bitmap(width, height, pixelFormat);
if (colors != null)
{
System.Drawing.Imaging.ColorPalette palette = bmp.Palette;
colors.CopyTo(palette.Entries, 0);
bmp.Palette = palette;
}
return(bmp);
}
