public gfx(Reader reader)
{
width = reader.ReadByte() << 8;
width |= reader.ReadByte();
height = reader.ReadByte() << 8;
height |= reader.ReadByte();
// Create image
GFXpal = new gfxPalette();
gfxImage = new Bitmap(width, height, PixelFormat.Format8bppIndexed);
ColorPalette cp = gfxImage.Palette;
// Read & Process palette, ISSUE HERE
for (int i = 0; i < 255; i++)
{
GFXpal.r[i] = reader.ReadByte();
GFXpal.g[i] = reader.ReadByte();
GFXpal.b[i] = reader.ReadByte();
cp.Entries[i] = Color.FromArgb(255, GFXpal.r[i], GFXpal.g[i], GFXpal.b[i]);
}
gfxImage.Palette = cp;
//Read Image Data
int[] buf = new int[3];
bool finished = false;
int cnt = 0;
int loop = 0;
data = new int[width * height];
while (!reader.IsEof)
{
buf[0] = reader.ReadByte();
if (buf[0] != 0xFF && !reader.IsEof)
{
data[cnt++] = buf[0];
}
else
{
buf[1] = reader.ReadByte();
if (buf[1] != 0xFF && !reader.IsEof)
{
buf[2] = reader.ReadByte();
loop = 0;
// Repeat value needs to decreased by one to decode
while (loop < buf[2] && !reader.IsEof)
{
data[cnt++] = buf[1];
loop++;
}
}
else
{
finished = true;
}
}
}
// Write data to image
int pixel = 0;
for (int h = 0; h < height; h++)
{
for (int w = 0; w < width; w++)
{
BitmapData ImgData = gfxImage.LockBits(new Rectangle(new Point(w, h), new Size(1, 1)), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
byte b = System.Runtime.InteropServices.Marshal.ReadByte(ImgData.Scan0);
System.Runtime.InteropServices.Marshal.WriteByte(ImgData.Scan0, (byte)(data[pixel]));
gfxImage.UnlockBits(ImgData);
pixel++;
}
}
reader.Close();
}
internal void Write(Writer writer)
{
if (gfxImage == null)
{
throw new Exception("Image is NULL");
}
if (gfxImage.Palette == null || gfxImage.Palette.Entries.Length == 0)
{
throw new Exception("Only indexed images can be converted to GFX format.");
}
if (gfxImage.Width > 65535)
{
throw new Exception("Images to be converted to GFX format can't be wider than 65535 pixels");
}
if (gfxImage.Height > 65535)
{
throw new Exception("Images to be converted to GFX format can't be higher than 65535 pixels");
}
GFXpal = new gfxPalette();
int num_pixels = gfxImage.Width * gfxImage.Height;
int[] pixels = new int[num_pixels]; //Pallete Indexes
// Images can't contain index 255
for (int x = 0; x < num_pixels; x++)
{
if (pixels[x] == 255)
{
throw new Exception("Images to be converted to GFX format can't contain index 255.");
}
}
int pix = 0;
for (int h = 0; h < gfxImage.Height; h++)
{
for (int w = 0; w < gfxImage.Width; w++)
{
pixels[pix++] = Get8bppImagePixel(gfxImage, new Point(w, h));
}
}
// Output width and height
writer.Write((byte)(gfxImage.Width >> 8));
writer.Write((byte)(gfxImage.Width & 0xff));
writer.Write((byte)(gfxImage.Height >> 8));
writer.Write((byte)(gfxImage.Height & 0xff));
for (int i = 0; i < gfxImage.Palette.Entries.Length; i++)
{
GFXpal.r[i] = gfxImage.Palette.Entries[i].R;
GFXpal.g[i] = gfxImage.Palette.Entries[i].G;
GFXpal.b[i] = gfxImage.Palette.Entries[i].B;
}
// Output palette
for (int x = 0; x < 255; x++)
{
writer.Write(GFXpal.r[x]);
writer.Write(GFXpal.g[x]);
writer.Write(GFXpal.b[x]);
}
// Output data
int p = 0;
int cnt = 0;
for (int x = 0; x < num_pixels; x++)
{
if (pixels[x] != p && x > 0)
{
rle_write(writer, p, cnt);
cnt = 0;
}
p = pixels[x];
cnt++;
}
rle_write(writer, p, cnt);
// End of GFX file
writer.Write((byte)0xFF);
writer.Write((byte)0xFF);
writer.Close();
}
