如何将bmp文件转换为pcx文件[关闭]

StackOverflow https://stackoverflow.com//questions/21035662

  •  21-12-2019
  •  | 
  •  

题

有没有找到将图像格式 bpm 转换为 pcx 的方法或 dll？

我一直在尝试遵循代码。

 public static void ConvertBMP2PCX(string bmpFilePath)
    {
        List<byte> listBytePCX = new List<byte>();

        Bitmap bmp = new Bitmap(bmpFilePath);
        int bmpWidth = bmp.Width;
        int bmpHeight = bmp.Height;

        byte[] byteBmp;
        using (MemoryStream ms = new MemoryStream())
        {
            bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
            byteBmp = ms.ToArray();
            ms.Close();
        }

        int bytesPerLine = (bmpWidth + 7) / 8;
        int xEnd = bmpWidth - 1;
        int yEnd = bmpHeight - 1;

        byte[] header ={
        0x0A,           // "PCX File"
        0x05,           // "Version 5"
        0x01,           // RLE Encoding
        0x01,           // 1 bit per pixel
        0x00, 0x00,     // XStart at 0
        0x00, 0x00,     // YStart at 0
        (byte)(xEnd&0xFF), (byte)((xEnd>>8) & 0xFF),      // Xend
        (byte)(yEnd&0xFF), (byte)((yEnd>>8) & 0xFF),      // Yend
        (byte)(xEnd&0xFF), (byte)((xEnd>>8) & 0xFF),      // Xend
        (byte)(yEnd&0xFF), (byte)((yEnd>>8) & 0xFF),      // Yend
        0x0F, 0x0F, 0x0F, 0x0E, 0x0E, 0x0E, 0x0D, 0x0D, 0x0D, 0x0C, 0x0C, 0x0C,   //48-byte EGA palette info
        0x0B, 0x0B, 0x0B, 0x0A, 0x0A, 0x0A, 0x09, 0x09, 0x09, 0x08, 0x08, 0x08,  
        0x07, 0x07, 0x07, 0x06, 0x06, 0x06, 0x05, 0x05, 0x05, 0x04, 0x04, 0x04,  
        0x03, 0x03, 0x03, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00,  
        0x00,          // Reserved byte, always x00
        0x01,          // 1 bit plane
        (byte)(bytesPerLine&0xFF), (byte)((bytesPerLine>>8) & 0xFF),      // Bytes per scan line: (XEnd - XStart,  1) / 8
        0x01, 0x00,    // Palette type: 1 means color or monochrome
        0x00, 0x00,    // Horizontal screen size (not used)
        0x00, 0x00     // Vertical screen size (not used)
     };
        listBytePCX.AddRange(header); // Write most of header data
        listBytePCX.AddRange(new byte[54]);// pad the 128-byte header


        byte[] rowIn = new byte[bmpWidth * 3];
        int[] bits = { 128, 64, 32, 16, 8, 4, 2, 1 };

        byte[] bytes = new byte[2];
        int last = 0;
        int count = 0;
        for (int y = 0; y < bmpHeight; y++)
        {
            //getPixelRow(rowIn, y);
            int currentByteCount = (y + 1) * bytesPerLine;
            if (currentByteCount > byteBmp.Length)
            {
                currentByteCount = byteBmp.Length;
                rowIn = new byte[bmpWidth * 3];
            }

            for (int i = y * bytesPerLine; i < currentByteCount; i++)
            {
                rowIn[count] = byteBmp[i];
            }
            count = 0;

            for (int x = 0; x < bmpWidth; x += 8)
            {
                int n = x + 8;
                if (n > bmpWidth) n = bmpWidth;
                int b = 0;
                for (int j = x; j < n; j++)
                    if (rowIn[j + j + j] != 0)
                        b |= bits[j - x];
                if (last == b && count < 63)
                    count++;
                else
                {
                    if (count > 0)
                    {
                        bytes[0] = (byte)(count | 0xC0);
                        bytes[1] = (byte)last;
                        listBytePCX.Add(bytes[0]);
                        listBytePCX.Add(bytes[1]);
                    }
                    last = b;
                    count = 1;
                }
            }
            if (count > 0)
            {
                bytes[0] = (byte)(count | 0xC0);
                bytes[1] = (byte)last;
                listBytePCX.Add(bytes[0]);
                listBytePCX.Add(bytes[1]);
                count = 0;
                last = 0;
            }
        }

        //Save pcx file
        string pcxFilePath = bmpFilePath.Substring(0, bmpFilePath.LastIndexOf('.') + 1) + "1";
        using (FileStream fs = new FileStream(pcxFilePath, FileMode.Create, FileAccess.Write))
        {
            fs.Write(listBytePCX.ToArray(), 0, listBytePCX.Count);
            fs.Flush();
            fs.Close();
        }
    }

但它不起作用，只能创建一条pcx格式的细线。

有帮助吗？

解决方案

有一个港口 图像魔术师 .NET 库位于 http://magick.codeplex.com/. 。该库支持 BMP 和 PCX 格式，还支持将图像从一种格式转换为另一种格式。

许可以下： CC-BY-SA 和 归因
不隶属于 StackOverflow
scroll top