/// <summary>
/// Automatically generates a TSA-compliant image from a 256(or fewer)-color image
/// </summary>
/// <param name="width">Width of the TSA (in tiles)</param>
/// <param name="height">Height of the TSA (in tiles)</param>
/// <param name="image">The bitmap to convert</param>
/// <param name="paletteAmount">the maximum amount of 16-color palettes</param>
/// <param name="checkRedundantTiles">whether or not to add all tiles found to the tileset</param>
public TSA_Image(
int width, int height,
GBA.Bitmap image,
int paletteAmount,
bool checkRedundantTiles)
{
Width = width * 8;
Height = height * 8;
if (image.Width != Width || image.Height != Height)
{
throw new Exception("Image given has invalid dimensions.\n" +
"It must be " + Width + "x" + Height + " pixels.");
}
if (image.Colors.Count <= 16)
{ // No need to run TSA-ifier code
Palettes = Palette.Split(image.Colors, paletteAmount);
Graphics = new Tileset(new Image(image));
Tiling = TSA_Array.GetBasicTSA(width, height);
}
else
{
using (FormLoading loading = new FormLoading())
{ // Run the image TSA-ifier
loading.Show();
int tileAmount = width * height;
byte[] bytes = image.ToBytes();
int[] colorTotals = new int[image.Colors.Count];
int[,] colorAmounts = new int[image.Colors.Count, tileAmount];
loading.SetLoading("Checking colors...", 2);
int index;
int tile = 0;
for (int tileY = 0; tileY < height; tileY++)
{
for (int tileX = 0; tileX < width; tileX++)
{
index = tileX * 8 + tileY * 8 * Width;
for (int y = 0; y < 8; y++)
{
for (int x = 0; x < 8; x++)
{
colorTotals[bytes[index]]++;
colorAmounts[bytes[index], tile]++;
}
index += Width - 8;
}
tile++;
} // first we take a look at which colors are most present (in all, and per tile)
}
loading.SetPercent(7);
List <int> colors = new List <int>();
for (int i = 0; i < colorTotals.Length; i++)
{
index = 0;
while (index < colors.Count && colorTotals[i] > colors[index])
{
index++;
}
if (index < colors.Count)
{
colors.Insert(index, i);
}
else
{
colors.Add(i);
}
if (colors.Count > paletteAmount * 15)
{
colors.RemoveAt(0);
}
} // then we create a list of indices to colors with only the most used colors
loading.SetPercent(9);
Palettes = new Palette[paletteAmount];
for (int i = 0; i < paletteAmount; i++)
{
Palettes[i] = new GBA.Palette(16);
Palettes[i].Add(new GBA.Color(0x0000));
} // we create our palettes, forcing the 1st color to be black on each palette
loading.SetLoading("Asserting tile palettes...", 10);
byte[] tilePalettes = new byte[tileAmount];
int[] certainty = new int[tileAmount];
GBA.Color color;
int amount;
for (int i = colors.Count - 1; i >= 0; i--)
{
color = image.Colors[colors[i]];
tile = 0;
while (tile < tilePalettes.Length)
{
amount = colorAmounts[colors[i], tile];
if (Palettes[tilePalettes[tile]].Contains(color))
{
certainty[tile] += amount;
}
else
{
if (Palettes[tilePalettes[tile]].IsFull)
{
if (certainty[tile] < amount)
{
tilePalettes[tile]++;
tilePalettes[tile] %= (byte)Palettes.Length;
certainty[tile] = 0;
i++; break;
}
else
{
certainty[tile] -= amount;
}
}
else if (amount != 0)
{
Palettes[tilePalettes[tile]].Add(color);
certainty[tile] += amount;
}
}
tile++;
}
loading.SetPercent(10 + (50 - 50 * ((float)i / (float)(colors.Count))));
} // and we do a loop going from most used color to least used, setting tilePalettes and filling said palettes
amount = 0;
for (int p = 0; p < Palettes.Length; p++)
{
Palettes[p].Sort(delegate(GBA.Color first, GBA.Color second)
{
return((first.GetValueR() + first.GetValueG() + first.GetValueB())
- (second.GetValueR() + second.GetValueG() + second.GetValueB()));
});
for (int i = Palettes[p].Count; i < 16; i++)
{
Palettes[p].Add(new Color(0x0000));
}
}
loading.SetMessage("Creating TSA information...");
Graphics = new Tileset(width * height);
Tiling = new TSA_Array(width, height);
int pixel;
tile = 0;
byte HI_nibble;
byte LO_nibble;
Tile currentTile;
Tuple <int, bool, bool> current;
for (int tileY = 0; tileY < height; tileY++)
{
for (int tileX = 0; tileX < width; tileX++)
{
index = (Palettes[tilePalettes[tile]].IsFull) ? tilePalettes[tile] : 0;
bytes = new byte[GBA.Tile.LENGTH];
for (int y = 0; y < 8; y++)
{
for (int x = 0; x < 4; x++)
{
color = image.GetColor(tileX * 8 + x * 2, tileY * 8 + y);
pixel = GBA.Color.GetNearest(Palettes[index], color);
LO_nibble = (pixel == -1) ? (byte)0x00 : (byte)(pixel);
color = image.GetColor(tileX * 8 + x * 2 + 1, tileY * 8 + y);
pixel = GBA.Color.GetNearest(Palettes[index], color);
HI_nibble = (pixel == -1) ? (byte)0x00 : (byte)(pixel);
bytes[x + y * 4] = (byte)((HI_nibble << 4) | LO_nibble);
}
}
currentTile = new Tile(bytes);
if (checkRedundantTiles)
{
if (currentTile.IsEmpty())
{
current = Tuple.Create(0, false, false);
}
else
{
current = Graphics.FindMatch(currentTile);
if (current == null)
{
current = Tuple.Create(Graphics.Count, false, false);
Graphics.Add(currentTile);
}
}
}
else
{
current = Tuple.Create(Graphics.Count, false, false);
Graphics.Add(currentTile);
}
// try {
Tiling[tileX, tileY] = new TSA(
(UInt16)current.Item1,
tilePalettes[tile],
current.Item2,
current.Item3);
// } catch { }
loading.SetPercent(60 + 40 * ((float)tile / (float)tileAmount));
tile++;
}
}
}
}
}
/// <summary>
/// Creates a Palette from a palette file (if its an image file, must be 16 pixels in width)
/// </summary>
public Palette(string filepath, int maximum = MAX)
{
Colors = new List <Color>(maximum);
if (filepath.EndsWith(".png", StringComparison.OrdinalIgnoreCase) ||
filepath.EndsWith(".gif", StringComparison.OrdinalIgnoreCase) ||
filepath.EndsWith(".bmp", StringComparison.OrdinalIgnoreCase))
{
Bitmap source;
try
{
source = new GBA.Bitmap(filepath);
}
catch { throw new Exception("Could not open palette file:\n" + filepath); }
bool addEveryPixel = (source.Width == 16);
int index = 0;
Color color;
for (int y = 0; y < source.Height; y++)
{
for (int x = 0; x < source.Width; x++)
{
color = source.GetColor(x, y);
if (!addEveryPixel && this.Contains(color))
{
continue;
}
else
{
if (this.IsFull)
{
throw new Exception("This palette cannot hold more than " + maximum + " colors.");
}
else
{
this.Colors.Add(color);
index++;
}
}
}
}
}
else if (filepath.EndsWith(".pal", StringComparison.OrdinalIgnoreCase))
{
byte[] palette = File.ReadAllBytes(filepath);
if (palette[0] == 0x43 &&
palette[1] == 0x4C &&
palette[2] == 0x52 &&
palette[3] == 0x58) // 'CLRX' is the header for usenti .pal files
{
string[] file = File.ReadAllLines(filepath);
int channelBits;
int colorAmount;
int parse = 5;
int length = 0;
while (parse + length < file[0].Length && file[0][parse + length] != ' ')
{
length++;
}
channelBits = int.Parse(file[0].Substring(parse, length));
parse += length + 1;
length = 0;
while (parse + length < file[0].Length && file[0][parse + length] != ' ')
{
length++;
}
colorAmount = int.Parse(file[0].Substring(parse, length));
uint color = 0x00000000;
Palette colors = new Palette(colorAmount);
for (int i = 0; i < (colorAmount / 4); i++)
{
parse = 0;
length = 0;
for (int j = 0; j < 4; j++)
{
while (parse + length < file[1 + i].Length &&
file[1 + i][parse + length] != ' ')
{
length++;
}
color = Util.HexToInt(file[1 + i].Substring(parse, length));
colors.Add(new Color(color));
parse += length + 1;
length = 0;
}
}
palette = colors.ToBytes(false);
}
else if (palette.Length != maximum * 2)
{
throw new Exception(
"Cannot load palette, the file given is of invalid length.\n" +
"It should be " + maximum * 2 + " bytes long.");
}
byte[] buffer = new byte[2];
for (int i = 0; i < palette.Length / 2; i++)
{
buffer[0] = palette[i * 2 + 1];
buffer[1] = palette[i * 2];
Colors.Add(new Color(buffer));
}
}
else
{
throw new Exception("Invalid filetype given to load palette.");
}
}