public RIXFile(Bitmap bmp, FRMPalette pal)
{
imgData = FastBMP.FixRGBImageToPalette(bmp, pal);
width = (UInt16)bmp.Width;
height = (UInt16)bmp.Height;
palette = pal.entry;
}
public static byte[] FixRGBImageToPalette(Bitmap bmIn, FRMPalette pal)
{
byte[] indexedImage = new byte[(bmIn.Width * bmIn.Height)];
long idx = 0;
unsafe
{
BitmapData rawData = bmIn.LockBits(new Rectangle(0, 0, bmIn.Width, bmIn.Height), ImageLockMode.ReadWrite, bmIn.PixelFormat);
int bytesPP = System.Drawing.Bitmap.GetPixelFormatSize(bmIn.PixelFormat) / 8;
int bmHeight = rawData.Height;
int bmWidth = rawData.Width * bytesPP;
byte * pointerBeginImageData = (byte *)rawData.Scan0;
Dictionary <String, OrderedPair <Color, byte> > lookup = new Dictionary <string, OrderedPair <Color, byte> >();
for (int y = 0; y < bmHeight; y++)
{
byte *rgbBlock = pointerBeginImageData + (y * rawData.Stride);
for (int x = 0; x < bmWidth; x = x + bytesPP)
{
int curB = rgbBlock[x];
int curG = rgbBlock[x + 1];
int curR = rgbBlock[x + 2];
Color champion = pal.entry[0];
double distBest = Double.MaxValue;
String colorKey = "#" + curR + curG + curB;
if (!lookup.ContainsKey(colorKey))
{
byte pdx = 0; byte championPal = 0;
foreach (Color refColor in pal.entry)
{
double euclid = Math.Sqrt(Math.Pow(refColor.R - curR, 2) + Math.Pow(refColor.G - curG, 2) + Math.Pow(refColor.B - curB, 2));
if (euclid < distBest)
{
champion = refColor; distBest = euclid; championPal = pdx;
}
pdx++;
}
lookup[colorKey] = new OrderedPair <Color, byte>(champion, championPal);
}
else
{
champion = (Color)(lookup[colorKey])[0];
}
/* rgbBlock[x] = (byte) champion.B;
* rgbBlock[x + 1] = (byte) champion.G;
* rgbBlock[x + 2] = (byte) champion.R;*/
indexedImage[idx] = (byte)(lookup[colorKey])[1];
idx++;
}
}
bmIn.UnlockBits(rawData);
}
return(indexedImage);
}
public static FRMPalette paletteFromPALFile(String fname)
{
FRMPalette pal = new FRMPalette();
int bMod = (int)Utils.BrightnessMultiplier.HIGH_NOON;
BinaryIntTrans modB = x => Math.Max(Math.Min(x.ReadByte() * bMod, 255), 0);
using (BinaryReader br = new BinaryReader(new FileStream(fname, FileMode.Open)))
for (int i = 0; i < 256; i++)
{
pal.entry[i] = Color.FromArgb(modB(br), modB(br), modB(br));
}
return(pal);
}
public Image toBitmap(FRMPalette palette)
{
Bitmap bm = new Bitmap(width, height);
int cnt = 0;
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
Color c = palette.entry[imageData[cnt]];
cnt++;
// MessageBox.Show(c.R+" "+c.G+" "+c.B);
bm.SetPixel(j, i, c);
}
}
return(bm);
}
public static FRMPalette paletteFromGIMPFile(String fname)
{
FRMPalette pal = new FRMPalette();
String line;
int cnt = 0;
Regex rgx = new Regex(@"\s*(\d+)\s*(\d+)\s*(\d+)", RegexOptions.IgnoreCase);
bool beginPalette = false;
using (StreamReader sr = new StreamReader(new FileStream(fname, FileMode.Open)))
{
while ((line = sr.ReadLine()) != null)
{
//MessageBox.Show(line);
if (!beginPalette && line.StartsWith("#"))
{
beginPalette = true;
// MessageBox.Show("Found hash.");
continue;
}
if (beginPalette && line.Trim().Length > 1)
{
MatchCollection matches = rgx.Matches(line);
if (matches.Count > 0 && matches[0].Groups.Count > 0)
{
pal.entry[cnt] = Color.FromArgb(int.Parse(matches[0].Groups[1].Value), int.Parse(matches[0].Groups[2].Value), int.Parse(matches[0].Groups[3].Value));
cnt++;
}
}
}
if (cnt != 256)
{
throw new InvalidDataException("Trouble constructing the indexed colors palette, not enough colors specified in GIMP-style Palette File!");
}
}
return(pal);
}
private void loadPaletteFileToolStripMenuItem_Click(object sender, EventArgs e)
{
DialogResult dr = ofdPaletteLoad.ShowDialog();
if (dr != DialogResult.OK)
{
return;
}
if (ofdPaletteLoad.FileName.EndsWith(".txt"))
{
try
{
commonColors = FRMPalette.paletteFromGIMPFile(ofdPaletteLoad.FileName);
toolStripStatusLabel1.Text = "Palette Successfully Loaded.";
pictureBox1.Image = null;
}
catch (Exception eee)
{
MessageBox.Show(eee.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else if (ofdPaletteLoad.FileName.EndsWith(".PAL"))
{
try
{
commonColors = FRMPalette.paletteFromPALFile(ofdPaletteLoad.FileName);
toolStripStatusLabel1.Text = "Palette Successfully Loaded.";
pictureBox1.Image = null;
}
catch (Exception eee)
{
MessageBox.Show(eee.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}