static Color[] ColorsRun(byte[] bytes, PictureSize size)
{
Color[] ColorMap = new Color[(int)Math.Ceiling((double)bytes.Length / 3)];
int offset = 0;
int index = 0;
int x = 0;
int y = 0;
for (int i = 0; i != bytes.Length; i++)
{
if (offset + 2 == bytes.Length)
{
ColorMap[index] = Color.FromArgb(2, bytes[offset], bytes[offset + 1], 0);
goto Exit;
}
else if (offset + 1 == bytes.Length)
{
ColorMap[index] = Color.FromArgb(1, bytes[offset], 0, 0);
}
else if (bytes.Length <= offset)
{
goto Exit;
}
else
{
ColorMap[index] = Color.FromArgb(255, bytes[offset], bytes[offset + 1], bytes[offset + 2]);
}
offset += 3;
index++;
if (y == size.W - 1)
{
y = 0;
x++;
}
else
{
y++;
}
}
Exit:
return(ColorMap);
}
static private Bitmap MergeImages(List <Color[]> colors)
{
int length = colors[0].Length * (colors.Count - 1) + colors.Last().Length;
PictureSize size;
int Picsize = (int)Math.Ceiling(Math.Sqrt(length));
size = new PictureSize(Picsize, Picsize);
Bitmap bit = new Bitmap(size.W, size.H);
int index = 0;
int offset = 0;
int fulloffset = 0;
using (var fastBitmap = bit.FastLock())
{
for (int x = 0; x != size.W; x++)
{
for (int y = 0; y != size.H; y++)
{
if (colors[index].Length == offset)
{
offset = 0;
index++;
if (index == colors.Count)
{
goto exit;
}
}
fastBitmap.SetPixel(x, y, colors[index][offset]);
offset++;
fulloffset++;
}
if (fulloffset == length)
{
goto exit;
}
}
}
exit:
return(bit);
}
private static async Task WantThreadAsync(string filename, long filelength)
{
Stopwatch stopWatch = new Stopwatch();
Console.WriteLine("1.싱글쓰레드");
Console.WriteLine("2.멀티쓰레드");
if (Console.ReadLine() == "1")
{
Console.Write("모양을 선택해주세요. (1 : 정사각형, 2 : 직사각형, 3 : 원) : ");
PictureSize size = CalculateSize(filelength, (PictureShape)(Convert.ToInt32(Console.ReadLine()) - 1));
stopWatch.Start();
Run(filename, filelength, size).Save("output.png", ImageFormat.Png);
}
else
{
byte[] bytes = File.ReadAllBytes(filename);
re:
int threadCount = 0;
int EachSize = 0;
Console.WriteLine("멀티 코어로 하시겠습니까? Y/N");
if (Console.ReadLine().ToUpper() == "Y")
{
Process currentProcess = System.Diagnostics.Process.GetCurrentProcess();
foreach (ProcessThread processThread in currentProcess.Threads)
{
processThread.ProcessorAffinity = currentProcess.ProcessorAffinity;
}
threadCount = currentProcess.Threads.Count;
EachSize = (int)Math.Ceiling((double)bytes.Length / (double)threadCount);
}
else
{
Console.WriteLine("원하는 쓰레드 수를 입력하세요");
threadCount = Int32.Parse(Console.ReadLine());
EachSize = (int)Math.Ceiling((double)bytes.Length / (double)threadCount);
if (bytes.Length / threadCount == 0)
{
Console.WriteLine("쓰레드가 너무많습니다");
goto re;
}
}
stopWatch.Start();
List <byte[]> EachByte = new List <byte[]>();
int locationbyte = 0;
for (int i = 0; i != threadCount; i++)
{
if (locationbyte >= bytes.Length)
{
break;
}
if (i == threadCount - 1)
{
EachByte.Add(bytes.Skip(locationbyte).Take(bytes.Length - locationbyte).ToArray());
}
else
{
EachByte.Add(bytes.Skip(locationbyte).Take(EachSize).ToArray());
locationbyte += EachSize;
}
}
List <Color[]> colors = new List <Color[]>(threadCount);
PictureSize size = CalculateSize(bytes.Length, PictureShape.Square);
double length = (double)bytes.Length / 3;
length /= threadCount;
if ((Math.Sqrt(length) % 1) != 0) //소수 나옴
{
int Picsize = (int)Math.Ceiling(Math.Sqrt(length));
size = new PictureSize(Picsize, Picsize);
}
else
{
int Picsize = (int)Math.Sqrt(length);
size = new PictureSize(Picsize, Picsize);
}
Task <Color[]>[] tasks = new Task <Color[]> [threadCount];// 띠용?????
for (int index = 0; index != threadCount; index++)
{
int i = index;
tasks[i] = Task <Color[]> .Factory.StartNew(() => { return(ColorsRun(EachByte[i], size)); });
}
await Task.WhenAll(tasks);
foreach (Task <Color[]> task in tasks)
{
colors.Add(task.Result);
}
Bitmap Process = MergeImages(colors);
Process.Save("output.png", ImageFormat.Png);
}
stopWatch.Stop();
Console.WriteLine("걸린시간 " + stopWatch.Elapsed);
GC.Collect();
}
static Bitmap Run(string filename, long Length, PictureSize size)
{
Bitmap Process = new Bitmap(size.W, size.H);
int offset = 0;
byte[] bytes = new byte[3];
FileStream stream = new FileStream(filename, FileMode.Open);
long last = size.W * size.H * 3 + (Length - size.W * size.H * 3);
using (var fastBitmap = Process.FastLock())
{
for (int x = 0; x != Process.Width; x++)
{
for (int y = 0; y != Process.Height; y++)
{
if (!size.IsCircle)
{
stream.Read(bytes, 0, 3);
if (offset >= last)
{
fastBitmap.SetPixel(x, y, Color.FromArgb(3, 0, 0, 0));
break;
}
else if (offset + 2 == Length)
{
fastBitmap.SetPixel(x, y, Color.FromArgb(2, bytes[0], bytes[1], 0));
goto Exit;
}
else if (offset + 1 == Length)
{
fastBitmap.SetPixel(x, y, Color.FromArgb(1, bytes[0], 0, 0));
}
else if (Length <= offset)
{
goto Exit;
}
else
{
fastBitmap.SetPixel(x, y, Color.FromArgb(255, bytes[0], bytes[1], bytes[2]));
}
offset += 3;
}
else
{
if (Length <= offset)
{
goto Exit;
}
else if (size.W * size.W / 4.0 > (x - size.W / 2.0) * (x - size.W / 2.0) + (y - size.H / 2.0) * (y - size.H / 2.0)) //그리기
{
stream.Read(bytes, 0, 3);
if (offset + 2 == Length)
{
fastBitmap.SetPixel(x, y, Color.FromArgb(2, bytes[0], bytes[1], 0));
goto Exit;
}
else if (offset + 1 == Length)
{
fastBitmap.SetPixel(x, y, Color.FromArgb(1, bytes[0], 0, 0));
}
else
{
fastBitmap.SetPixel(x, y, Color.FromArgb(255, bytes[0], bytes[1], bytes[2]));
}
offset += 3;
}
else
{
fastBitmap.SetPixel(x, y, Color.FromArgb(0, 0, 0, 0));
}
}
}
}
}
Exit:
return(Process);
}
