/// <summary>
/// 获取图像编码解码器
/// </summary>
/// <param name="format">图像文件格式</param>
/// <returns>图像编码解码器</returns>
private unsafe static ImageCodecInfo getImageCodec(ImageFormat format)
{
if (format != null)
{
TmphGuid guid = new TmphGuid { Value = format.Guid };
return imageCodecs.Get(&guid, 16);
}
return null;
}
unsafe static TmphThumbnail()
{
(qualityEncoder = new EncoderParameters(1)).Param[0] = new EncoderParameter(Encoder.Quality, 100L);
ImageCodecInfo[] infos = ImageCodecInfo.GetImageDecoders();
imageCodecs = new CLB.TmphStateSearcher.TmphByteArray<ImageCodecInfo>(infos.getArray(value => CLB.TmphGuid.ToByteArray(value.FormatID)), infos);
TmphGuid guid = new TmphGuid { Value = ImageFormat.Jpeg.Guid };
jpegImageCodecInfo = imageCodecs.Get(&guid, 16);
}
public static unsafe void ToString(Guid value, TmphCharStream jsonStream)
{
var guid = new TmphGuid { Value = value };
jsonStream.PrepLength(38);
var data = (byte*)jsonStream.CurrentChar;
int high = guid.Byte3 >> 4, low = guid.Byte3 & 15;
*(char*)data = Quote;
*(char*)(data + sizeof(char)) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 2) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte2 >> 4;
low = guid.Byte2 & 15;
*(char*)(data + sizeof(char) * 3) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 4) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte1 >> 4;
low = guid.Byte1 & 15;
*(char*)(data + sizeof(char) * 5) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 6) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte0 >> 4;
low = guid.Byte0 & 15;
*(char*)(data + sizeof(char) * 7) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 8) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 9) = '-';
high = guid.Byte5 >> 4;
low = guid.Byte5 & 15;
*(char*)(data + sizeof(char) * 10) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 11) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte4 >> 4;
low = guid.Byte4 & 15;
*(char*)(data + sizeof(char) * 12) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 13) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 14) = '-';
high = guid.Byte7 >> 4;
low = guid.Byte7 & 15;
*(char*)(data + sizeof(char) * 15) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 16) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte6 >> 4;
low = guid.Byte6 & 15;
*(char*)(data + sizeof(char) * 17) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 18) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 19) = '-';
high = guid.Byte8 >> 4;
low = guid.Byte8 & 15;
*(char*)(data + sizeof(char) * 20) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 21) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte9 >> 4;
low = guid.Byte9 & 15;
*(char*)(data + sizeof(char) * 22) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 23) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 24) = '-';
high = guid.Byte10 >> 4;
low = guid.Byte10 & 15;
*(char*)(data + sizeof(char) * 25) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 26) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte11 >> 4;
low = guid.Byte11 & 15;
*(char*)(data + sizeof(char) * 27) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 28) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte12 >> 4;
low = guid.Byte12 & 15;
*(char*)(data + sizeof(char) * 29) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 30) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte13 >> 4;
low = guid.Byte13 & 15;
*(char*)(data + sizeof(char) * 31) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 32) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte14 >> 4;
low = guid.Byte14 & 15;
*(char*)(data + sizeof(char) * 33) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 34) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
high = guid.Byte15 >> 4;
low = guid.Byte15 & 15;
*(char*)(data + sizeof(char) * 35) = (char)(high < 10 ? high + '0' : (high + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 36) = (char)(low < 10 ? low + '0' : (low + ('0' + 'A' - '9' - 1)));
*(char*)(data + sizeof(char) * 37) = Quote;
jsonStream.Unsafer.AddLength(38);
}
