//============================================================
// <T>存储索引颜色。</T>
//
// @param output 输出流
// @param quantizer 优化器
// @param bitmap 位图对象
//============================================================
protected void StoreIndexedColor(IOutput output, Bitmap bitmap, int colorCount, int cx, int cy)
{
// 优化图形
FPictureQuantizer pictureQuantizer = new FPictureQuantizer(_quantizerCd);
IColorQuantizer colorQuantizer = pictureQuantizer.LoadQuantizerColors(bitmap, FPictureQuantizer.EQuantizedMode.Rgb);
int colorTotal = colorQuantizer.GetColorCount();
// 构造调色板
Color[] palette = colorQuantizer.MakePalette(colorCount).ToArray();
// 输出调色板
int paletteCount = palette.Length;
output.WriteUint8((byte)paletteCount);
foreach (Color color in palette)
{
output.WriteInt32(color.ToArgb() & 0x00FFFFFF);
}
// 输出颜色数组
int width = bitmap.Width;
int height = bitmap.Height;
for (int h = 0; h < height; h++)
{
for (int w = 0; w < width; w++)
{
Color color = bitmap.GetPixel(w, h);
int index = colorQuantizer.FindPaletteIndex(Color.FromArgb(255, color));
output.WriteUint8((byte)index);
output.WriteUint8(color.A);
}
}
_logger.Debug(this, "StoreIndexedColor", "Make indexed color. (position={0}-{1}, color_total={2}, color_count={3})",
cx, cy, colorTotal, paletteCount);
}
/// ============================================================
/// <summary>生成指定颜色数目的图形。</summary>
/// <param name="colorCount">颜色数目</param>
/// <returns>图形</returns>
/// ============================================================
public Bitmap BuildQuantizedImage(int colorCount)
{
// 生成调色板
Color[] palette = _quantizer.MakePalette(colorCount).ToArray();
// 创建输出图像
int width = _imageSource.Width;
int height = _imageSource.Height;
Bitmap result = new Bitmap(width, height, PixelFormat.Format32bppArgb);
// 绘制输出图形颜色
Rectangle bounds = Rectangle.FromLTRB(0, 0, width, height);
BitmapData sourceData = _imageSource.LockBits(bounds, ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
BitmapData targetData = result.LockBits(bounds, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
try {
// 初始化读取和写入缓冲
int[] sourceBuffer = new int[width];
int[] targetBuffer = new int[width];
long sourceOffset = sourceData.Scan0.ToInt64();
long targetOffset = targetData.Scan0.ToInt64();
// 处理所有原图像颜色
for (int row = 0; row < height; row++)
{
// 读取一行
Marshal.Copy(new IntPtr(sourceOffset), sourceBuffer, 0, width);
// 通过调色板转换颜色
for (Int32 index = 0; index < width; index++)
{
Color color = Color.FromArgb(sourceBuffer[index]);
int paletteIndex = _quantizer.FindPaletteIndex(color);
targetBuffer[index] = palette[paletteIndex].ToArgb();
}
// 写入一行
Marshal.Copy(targetBuffer, 0, new IntPtr(targetOffset), width);
// 修正行边界
sourceOffset += sourceData.Stride;
targetOffset += targetData.Stride;
}
} finally {
// 释放图像对象
_imageSource.UnlockBits(sourceData);
result.UnlockBits(targetData);
}
// 返回结果
return(result);
}
//============================================================
// <T>序列化位图的一个区块。</T>
//
// @params output 输出流
// @params colorQuantizer 颜色优化器
// @params rect 序列化的矩形区域
// @params colorCount 颜色数量
//============================================================
protected bool SerializeBlock(IOutput output, IColorQuantizer colorQuantizer, SIntRectangle rect, int colorCount)
{
int blockWidth = rect.Width;
int blockHeight = rect.Height;
output.WriteUint16((ushort)blockWidth);
output.WriteUint16((ushort)blockHeight);
// 构造调色板
Color[] palette = null;
if (_optionAlpha)
{
palette = colorQuantizer.MakePalette(colorCount).ToArray();
if (0 == palette.Length)
{
RMoCore.TrackConsole.Write(this, "SerializeBlock", "Palette color is empty.");
return(false);
}
}
else
{
List <Color> colorList = colorQuantizer.MakePalette(colorCount);
if (0 == colorList.Count)
{
RMoCore.TrackConsole.Write(this, "SerializeBlock", "Palette color is empty.");
return(false);
}
colorList.Add(Color.Transparent);
palette = colorList.ToArray();
}
// 输出调色板
int paletteCount = palette.Length;
output.WriteUint16((ushort)paletteCount);
foreach (Color color in palette)
{
if (_optionAlpha)
{
output.WriteInt32(color.ToArgb() & 0x00FFFFFF);
}
else
{
output.WriteInt32(color.ToArgb());
}
}
// _logger.Debug(this, "SerializeIndexed", "block_size={0}x{1}, color={2}, alpha={3}", blockWidth, blockHeight, paletteCount, _optionAlpha);
// 输出颜色数组
int x = rect.Left;
int y = rect.Top;
// 透明色索引
int transparentIndex = palette.Length - 1;
int size = blockWidth * blockHeight;
// 写入数组
int postion = 0;
byte[] bytes = null;
if (_optionAlpha)
{
// 写入索引颜色和透明度
bytes = new byte[size * 2];
for (int h = 0; h < blockHeight; h++)
{
for (int w = 0; w < blockWidth; w++)
{
Color color = _native.GetPixel(x + w, y + h);
int index = colorQuantizer.FindPaletteIndex(Color.FromArgb(255, color));
bytes[postion++] = (byte)index;
bytes[postion++] = color.A;
}
}
}
else
{
// 写入带透明的索引颜色
bytes = new byte[size];
for (int h = 0; h < blockHeight; h++)
{
for (int w = 0; w < blockWidth; w++)
{
Color color = _native.GetPixel(x + w, y + h);
int index = colorQuantizer.FindPaletteIndex(color);
bytes[postion++] = (byte)index;
}
}
}
output.WriteBytes(bytes, 0, postion);
return(true);
}
//============================================================
// <T>序列化位图的一个区块。</T>
//
// @params output 输出流
// @params colorQuantizer 颜色优化器
// @params rect 序列化的矩形区域
// @params colorCount 颜色数量
//============================================================
protected bool SerializeUnpackBlock(IOutput output, IColorQuantizer colorQuantizer, SIntRectangle rect, int colorCount)
{
int blockWidth = rect.Width;
int blockHeight = rect.Height;
output.WriteUint16((ushort)blockWidth);
output.WriteUint16((ushort)blockHeight);
// 构造调色板
Color[] palette = null;
if (_optionAlpha)
{
palette = colorQuantizer.MakePalette(colorCount).ToArray();
if (0 == palette.Length)
{
RMoCore.TrackConsole.Write(this, "SerializeBlock", "Palette color is empty.");
return(false);
}
}
else
{
List <Color> colorList = colorQuantizer.MakePalette(colorCount);
if (0 == colorList.Count)
{
RMoCore.TrackConsole.Write(this, "SerializeBlock", "Palette color is empty.");
return(false);
}
colorList.Add(Color.Transparent);
palette = colorList.ToArray();
}
// 输出颜色数组
int x = rect.Left;
int y = rect.Top;
// 写入数组
if (_optionAlpha)
{
// 写入索引颜色和透明度
for (int h = 0; h < blockHeight; h++)
{
for (int w = 0; w < blockWidth; w++)
{
Color color = _native.GetPixel(x + w, y + h);
int index = colorQuantizer.FindPaletteIndex(Color.FromArgb(255, color));
Color c = Color.FromArgb(color.A, palette[index]);
output.WriteInt32(c.ToArgb());
}
}
}
else
{
// 写入带透明的索引颜色
for (int h = 0; h < blockHeight; h++)
{
for (int w = 0; w < blockWidth; w++)
{
Color color = _native.GetPixel(x + w, y + h);
int index = colorQuantizer.FindPaletteIndex(color);
output.WriteInt32(palette[index].ToArgb());
}
}
}
return(true);
}
//============================================================
// <T>序列化位图的一个区块。</T>
//
// @params output 输出流
// @params colorQuantizer 颜色优化器
// @params rect 序列化的矩形区域
// @params colorCount 颜色数量
//============================================================
protected bool SerializeBlock(IOutput output, IColorQuantizer colorQuantizer, SIntRectangle rect, int colorCount)
{
FByteStream stream = new FByteStream();
int blockWidth = rect.Width;
int blockHeight = rect.Height;
// 写入设置
stream.WriteBool(_optionAlpha);
stream.WriteUint16((ushort)blockWidth);
stream.WriteUint16((ushort)blockHeight);
// 构造调色板
Color[] palette = null;
if (_optionAlpha)
{
palette = colorQuantizer.MakePalette(colorCount).ToArray();
if (0 == palette.Length)
{
RMoCore.TrackConsole.Write(this, "SerializeBlock", "Palette color is empty.");
return(false);
}
}
else
{
List <Color> colorList = colorQuantizer.MakePalette(colorCount);
if (0 == colorList.Count)
{
RMoCore.TrackConsole.Write(this, "SerializeBlock", "Palette color is empty.");
return(false);
}
colorList.Add(Color.FromArgb(0, 0, 0, 0));
palette = colorList.ToArray();
}
// 输出调色板
int paletteCount = palette.Length;
stream.WriteUint16((ushort)paletteCount);
//if(RResourceManager.IsColoPremultiplied) {
// foreach (Color color in palette) {
// if (_optionAlpha) {
// stream.WriteInt32(color.ToArgb() & 0x00FFFFFF);
// } else {
// byte a = color.A;
// byte r = (byte)(((float)color.R * (float)a) / 255.0f);
// byte g = (byte)(((float)color.G * (float)a) / 255.0f);
// byte b = (byte)(((float)color.B * (float)a) / 255.0f);
// stream.WriteInt32(Color.FromArgb(a, r, g, b).ToArgb());
// }
// }
//} else if(RResourceManager.IsColoSkipProcess) {
// int skipAlpha = RResourceManager.ColoSkipAlpha;
// foreach(Color color in palette) {
// if(_optionAlpha) {
// stream.WriteInt32(color.ToArgb() & 0x00FFFFFF);
// } else {
// if(color.A < skipAlpha) {
// stream.WriteInt32(0);
// } else {
// stream.WriteInt32(color.ToArgb());
// }
// }
// }
//} else {
// foreach(Color color in palette) {
// if(_optionAlpha) {
// stream.WriteInt32(color.ToArgb() & 0x00FFFFFF);
// } else {
// stream.WriteInt32(color.ToArgb());
// }
// }
//}
// _logger.Debug(this, "SerializeIndexed", "block_size={0}x{1}, color={2}, alpha={3}", blockWidth, blockHeight, paletteCount, _optionAlpha);
// 输出颜色数组
int x = rect.Left;
int y = rect.Top;
// 透明色索引
int transparentIndex = palette.Length - 1;
int size = blockWidth * blockHeight;
// 写入数组
int postion = 0;
byte[] bytes = null;
if (_optionAlpha)
{
// 写入索引颜色和透明度
bytes = new byte[size * 2];
for (int h = 0; h < blockHeight; h++)
{
for (int w = 0; w < blockWidth; w++)
{
Color color = _bitmap.GetPixel(x + w, y + h);
int index = colorQuantizer.FindPaletteIndex(Color.FromArgb(255, color));
bytes[postion++] = (byte)index;
bytes[postion++] = color.A;
}
}
}
else
{
// 写入带透明的索引颜色
bytes = new byte[size];
for (int h = 0; h < blockHeight; h++)
{
for (int w = 0; w < blockWidth; w++)
{
Color color = _bitmap.GetPixel(x + w, y + h);
int index = colorQuantizer.FindPaletteIndex(color);
bytes[postion++] = (byte)index;
}
}
}
stream.WriteBytes(bytes, 0, postion);
// 写入数据
output.WriteInt32(stream.Length);
output.WriteBytes(stream.Memory, 0, stream.Length);
return(true);
}