static Bitmap ReduceColors(Bitmap bitmapSrc, Rectangle rectPattern, ColorList colorListPalette)
{
Bitmap result = new Bitmap(rectPattern.Width, rectPattern.Height);
ColorSpace colorSpace = new ColorSpaceYCbCr();
Dither dither = new Dither2x2();
//ColorList[] colorLists = new ColorList
Color colorKey = bitmapSrc.GetPixel(0, 0);
for (int y = 0; y < rectPattern.Height; y++)
{
int yy = rectPattern.Y + y;
for (int x = 0; x < rectPattern.Width; x += 16)
{
Dictionary <Color, int> dicColorCount = new Dictionary <Color, int>();
dicColorCount.Add(colorKey, 16);
for (int i = 0; i < 16; i++)
{
int xx = rectPattern.X + x + i;
Color color = bitmapSrc.GetPixel(xx, yy);
if (dicColorCount.ContainsKey(color))
{
dicColorCount[color] += 1;
}
else
{
dicColorCount.Add(color, 1);
}
}
Color[] colors = dicColorCount.Keys.ToArray();
int[] counts = dicColorCount.Values.ToArray();
for (int i = 0; i < colors.Length - 1; i++)
{
for (int j = 0; j < colors.Length - 1 - i; j++)
{
if (counts[j] < counts[j + 1])
{
int swap0 = counts[j];
Color colorSwap = colors[j];
counts[j] = counts[j + 1];
colors[j] = colors[j + 1];
counts[j + 1] = swap0;
colors[j + 1] = colorSwap;
}
}
}
/*
* 20 2
* 21 3
* 22 2
* 23 3
* 24 6
* 25 7
* 26 6
* 27 7
* 28 10
* 29 11
* 210 10
* 211 11
* 212 14
* 213 15
* 214 14
* 215 15
*
* 30 3
* 31 3
* 32 3
* 33 3
* 34 7
* 35 7
* 36 7
* 37 7
* 38 11
* 39 11
* 310 11
* 311 11
* 312 15
* 313 15
* 314 15
* 315 15
*/
ColorList colorList = new ColorList(((colors.Length < 4) ? colors.ToArray() : colors.Take(4).ToArray()));
for (int i = 0; i < 16; i++)
{
int xx = rectPattern.X + x + i;
Color color = bitmapSrc.GetPixel(xx, yy);
int index = 0;
if (color.ToArgb() == colorKey.ToArgb())
{
result.SetPixel(x + i, y, colorKey);
}
else
{
index = colorList.GetNearestColorIndexDither(color, xx, yy, colorSpace, dither);
//index = colorListPalette.GetNearestColorIndexDither(colorList.GetColor(index),xx,yy,colorSpace,dither);
//result.SetPixel(x + i, y, colorListPalette.GetColor(index));
result.SetPixel(x + i, y, colorList.GetColor(index));
}
}
}
}
return(result);
}
static void CreateSpriteMode2(string strOutputName, Bitmap bitmap, Rectangle rectPatterns, ColorList colorList, ColorSpace colorSpace)
{
System.IO.StreamWriter writer = new System.IO.StreamWriter(strOutputName);
for (int y = 0; y < rectPatterns.Height; y += 16)
{
int yy = rectPatterns.Y + y;
for (int x = 0; x < rectPatterns.Width; x += 16)
{
int xx = rectPatterns.X + x;
SpritePattern pattern0 = new SpritePattern();
SpritePattern pattern1 = new SpritePattern();
for (int i = 0; i < 16; i++)
{
//. 3 色探す.
Dictionary <int, int> dicIndexToBits = FindColors(bitmap, xx, yy + i, colorList, colorSpace);
pattern1.Colors[i] = 0x60;
if (dicIndexToBits.Count <= 0)
{
continue;
}
if (dicIndexToBits.Count <= 3)
{
pattern0.Colors[i] = dicIndexToBits.Keys.ElementAt(0);
}
if (dicIndexToBits.Count >= 2)
{
pattern1.Colors[i] |= dicIndexToBits.Keys.ElementAt(1);
}
for (int j = 0; j < 8; j++)
{
int leftIndex = colorList.GetNearestColor(bitmap.GetPixel(xx + j, yy + i), colorSpace);
if (dicIndexToBits.ContainsKey(leftIndex))
{
int leftBits = dicIndexToBits[leftIndex];
if ((leftBits & 0x1) == 0x1)
{
pattern0.Patterns[i] |= 0x80 >> j;
}
if ((leftBits & 0x2) == 0x2)
{
pattern1.Patterns[i] |= 0x80 >> j;
}
}
int rightIndex = colorList.GetNearestColor(bitmap.GetPixel(xx + 8 + j, yy + i), colorSpace);
if (dicIndexToBits.ContainsKey(rightIndex))
{
int rightBits = dicIndexToBits[rightIndex];
if ((rightBits & 0x1) == 0x1)
{
pattern0.Patterns[16 + i] |= 0x80 >> j;
}
if ((rightBits & 0x2) == 0x2)
{
pattern1.Patterns[16 + i] |= 0x80 >> j;
}
}
}
}
if (!pattern0.IsNull() && !pattern1.IsNull())
{
writer.WriteLine("\t//. 2.");
pattern0.WritePatterns(writer);
pattern1.WritePatterns(writer);
pattern0.WriteColors(writer);
pattern1.WriteColors(writer);
}
else if (!pattern0.IsNull())
{
writer.WriteLine("\t//. 1.");
pattern0.WritePatterns(writer);
pattern0.WriteColors(writer);
}
}
}
writer.Close();
}
static Dictionary <int, int> FindColors(Bitmap bitmap, int x, int y, ColorList colorList, ColorSpace colorSpace)
{
Dictionary <int, int> dicColors = new Dictionary <int, int>();
for (int i = 0; i < 16; i++)
{
Color color = bitmap.GetPixel(x + i, y);
int index = colorList.GetNearestColor(color, colorSpace);
if (index <= 0)
{
continue;
}
if (dicColors.ContainsKey(index))
{
dicColors[index] += 1;
}
else
{
dicColors.Add(index, 1);
}
}
Dictionary <int, int> result = new Dictionary <int, int>();
if (dicColors.Count <= 0)
{
//return null;
}
else if (dicColors.Count <= 1)
{
//. 単色.
result.Add(dicColors.Keys.ElementAt(0), 1);
return(result);
}
else if (dicColors.Count <= 2)
{
//. 2 色.
result.Add(dicColors.Keys.ElementAt(0), 1);
result.Add(dicColors.Keys.ElementAt(1), 2);
return(result);
}
else if (dicColors.Count <= 3)
{
int i0 = dicColors.Keys.ElementAt(0);
int i1 = dicColors.Keys.ElementAt(1);
int i2 = dicColors.Keys.ElementAt(2);
if (i0 == (i1 | i2))
{
result.Add(i1, 1);
result.Add(i2, 2);
result.Add(i0, 3);
}
else if (i1 == (i2 | i0))
{
result.Add(i2, 1);
result.Add(i0, 2);
result.Add(i1, 3);
}
else if (i2 == (i0 | i1))
{
result.Add(i0, 1);
result.Add(i1, 2);
result.Add(i2, 3);
}
}
return(result);
}
static void Main(string[] args)
{
string strInputName = "";
string strOutputName = "";
Rectangle rectPalette = new Rectangle(0, 0, 0, 0);
Rectangle rectPatterns = new Rectangle(0, 0, 8 * 16, 8 * 16);
ColorSpace colorSpace = new ColorSpaceYCbCr();
bool isSpriteMode2 = false;
for (int i = 0; i < args.Length; i++)
{
switch (args[i])
{
case "-o":
strOutputName = args[i + 1];
i++;
break;
case "-palette":
rectPalette = new Rectangle(int.Parse(args[i + 1]), int.Parse(args[i + 2]), int.Parse(args[i + 3]), int.Parse(args[i + 4]));
i += 4;
break;
case "-pattern":
rectPatterns = new Rectangle(int.Parse(args[i + 1]), int.Parse(args[i + 2]), int.Parse(args[i + 3]), int.Parse(args[i + 4]));
i += 4;
break;
case "-spritemode2":
isSpriteMode2 = true;
break;
default:
strInputName = args[i];
break;
}
}
if (strInputName == "")
{
return;
}
if (strOutputName == "")
{
return;
}
Bitmap bitmap = new Bitmap(strInputName);
ColorList colorList = CreatePalette(bitmap, rectPalette);
CreateSpriteMode2(strOutputName, bitmap, rectPatterns, colorList, colorSpace);
Bitmap test = ReduceColors(bitmap, rectPatterns, colorList);
test.Save("test.bmp");
/*
*
* System.IO.StreamWriter writer = new System.IO.StreamWriter(strOutputName);
*
* Color colorZero = bitmap.GetPixel(0, 0);
*
* int nXCount = bitmap.Width/16;
* int nYCount = bitmap.Height/16;
*
* for (int y = 0; y < nYCount; y++)
* {
* for (int x = 0; x < nXCount; x++)
* {
* writer.Write("\t");
*
* //. 左半分.
* for (int yy = 0; yy < 16; yy++)
* {
* int nBits = 0;
* for (int xx = 0; xx < 8; xx++)
* {
* if (bitmap.GetPixel(x * 16 + xx, y * 16 + yy) != colorZero)
* {
* nBits |= 0x80 >> xx;
* }
* }
*
* writer.Write( string.Format( "0x{0:X2},", nBits ) );
* }
*
* writer.Write( " " );
*
* //. 右半分.
* for (int yy = 0; yy < 16; yy++)
* {
* int nBits = 0;
* for (int xx = 0; xx < 8; xx++)
* {
* if (bitmap.GetPixel(x * 16 + xx + 8, y * 16 + yy) != colorZero)
* {
* nBits |= 0x80 >> xx;
* }
* }
*
* writer.Write( string.Format( "0x{0:X2},", nBits ) );
*
* if( yy < 15 )
* {
* // writer.Write( "," );
* }
* }
*
* writer.WriteLine();
* }
* }
*
* writer.Close();
*/
}
