mirror of
https://github.com/crskycode/GARbro.git
synced 2026-06-06 05:38:48 +08:00
(CRX): implemented version 2 write method by sagilio
This commit is contained in:
nanami5270
@@ -26,6 +26,7 @@
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using System;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Windows;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using GameRes.Compression;
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@@ -47,6 +48,7 @@ namespace GameRes.Formats.Circus
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public override string Tag { get { return "CRX"; } }
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public override string Description { get { return "Circus image format"; } }
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public override uint Signature { get { return 0x47585243; } } // 'CRXG'
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public override bool CanWrite { get { return true; } }
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public override ImageMetaData ReadMetaData (IBinaryStream stream)
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{
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@@ -81,7 +83,76 @@ namespace GameRes.Formats.Circus
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("CrxFormat.Write not implemented");
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var header = new byte[0x14];
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var depth = (short)(24 == image.BPP ? 0 : 32 == image.BPP ? 1 : 2);
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var compression = (ushort)3;
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var flags = (ushort)17;
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var mode = (ushort)0;
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using (var memeStream = new MemoryStream (header))
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{
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using (var binaryWriter = new BinaryWriter (memeStream))
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{
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binaryWriter.Write (Signature);
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binaryWriter.Write ((ushort)image.OffsetX);
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binaryWriter.Write ((ushort)image.OffsetY);
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binaryWriter.Write ((ushort)image.Width);
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binaryWriter.Write ((ushort)image.Height);
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binaryWriter.Write (compression);
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binaryWriter.Write (flags);
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binaryWriter.Write (depth);
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binaryWriter.Write (mode);
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}
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}
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var metaData = ReadMetaData (BinaryStream.FromArray (header,""));
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var bitmap = image.Bitmap;
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var pixelFormat = CheckFormat (image.BPP);
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int stride = (int)(image.Width * pixelFormat.BitsPerPixel / 8 + 3) & ~3;
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if (pixelFormat != bitmap.Format)
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{
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var converted_bitmap = new FormatConvertedBitmap ();
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converted_bitmap.BeginInit ();
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converted_bitmap.Source = image.Bitmap;
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converted_bitmap.DestinationFormat = pixelFormat;
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converted_bitmap.EndInit ();
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bitmap = converted_bitmap;
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}
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var data = new byte[image.Height * stride];
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var row_data = new byte[stride];
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var rect = new Int32Rect (0, 0, (int)image.Width, 1);
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for (uint row = 0; row < image.Height; ++row)
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{
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bitmap.CopyPixels (rect, row_data, stride, 0);
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rect.Y++;
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row_data.CopyTo (data, row * stride);
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}
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using (var binaryWriter = new BinaryWriter (file))
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{
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binaryWriter.Write (header);
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using (var writer = new Writer (data, binaryWriter,(CrxMetaData)metaData))
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{
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writer.Write ();
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}
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}
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}
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private static PixelFormat CheckFormat (int bpp)
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{
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switch (bpp)
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{
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case 24: return PixelFormats.Bgr24;
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case 32: return PixelFormats.Bgra32;
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case 8: return PixelFormats.Indexed8;
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default: throw new InvalidFormatException ();
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}
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}
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internal sealed class Reader : IDisposable
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@@ -109,13 +180,7 @@ namespace GameRes.Formats.Circus
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m_compression = info.Compression;
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m_flags = info.CompressionFlags;
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m_mode = info.Mode;
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switch (m_bpp)
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{
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case 24: Format = PixelFormats.Bgr24; break;
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case 32: Format = PixelFormats.Bgra32; break;
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case 8: Format = PixelFormats.Indexed8; break;
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default: throw new InvalidFormatException();
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}
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Format = CheckFormat (m_bpp);
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m_stride = (m_width * m_bpp / 8 + 3) & ~3;
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m_output = new byte[m_height*m_stride];
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m_input = input;
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@@ -336,5 +401,222 @@ namespace GameRes.Formats.Circus
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}
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#endregion
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}
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internal sealed class Writer : IDisposable
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{
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BinaryWriter m_output;
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byte[] m_input;
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int m_width;
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int m_height;
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int m_stride;
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int m_bpp;
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int m_compression;
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int m_flags;
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int m_mode;
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public byte[] Data { get { return m_input; } }
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public PixelFormat Format { get; private set; }
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public BitmapPalette Palette { get; private set; }
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public int Stride { get { return m_stride; } }
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public Writer(byte[] input,
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BinaryWriter output,
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CrxMetaData info)
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{
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m_width = (int)info.Width;
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m_height = (int)info.Height;
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m_bpp = info.BPP;
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m_compression = info.Compression;
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m_flags = info.CompressionFlags;
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m_mode = info.Mode;
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Format = CheckFormat (m_bpp);
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m_stride = (m_width * m_bpp / 8 + 3) & ~3;
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m_input = input;
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m_output = output;
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m_output.Seek (0x14, SeekOrigin.Begin);
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if (8 == m_bpp)
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ReadPalette (info.Colors);
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}
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private void ReadPalette (int colors)
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{
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throw new NotImplementedException("CrxFormat.Write 8bit bpp not implemented");
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}
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public void Write (bool isDiff = false)
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{
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int compressed_size_position = 40;
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if (m_compression >= 3)
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{
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var count = 1;
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m_output.Write (count);
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m_output.Seek (count * 0x10, SeekOrigin.Current);
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}
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if (0 != (m_flags & 0x10))
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{
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compressed_size_position = (int) m_output.BaseStream.Position + 4;
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m_output.Seek (compressed_size_position, SeekOrigin.Begin);
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}
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if (32 == m_bpp && m_mode != 1)
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{
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int alpha_flip = 2 == m_mode ? 0 : 0xFF;
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int line = 0;
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for (int h = 0; h < m_height; h++)
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{
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for (int w = 0; w < m_width; w++)
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{
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int pixel = line + w * 4;
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var b = m_input[pixel];
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var g = m_input[pixel + 1];
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var r = m_input[pixel + 2];
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var alpha = m_input[pixel + 3];
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m_input[pixel] = (byte)(alpha ^ alpha_flip);
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m_input[pixel + 1] = b;
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m_input[pixel + 2] = g;
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m_input[pixel + 3] = r;
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}
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line += m_stride;
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}
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}
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if (1 == m_compression)
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WriteV1 ();
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else
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WriteV2 ();
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m_output.Seek (compressed_size_position - 4, SeekOrigin.Begin);
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var compressed_size = (int)m_output.BaseStream.Length; // compressed_size
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m_output.Write (compressed_size);
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}
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private void WriteV2 ()
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{
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int pixel_size = m_bpp / 8;
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int src_stride = m_width * pixel_size;
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m_output.Flush ();
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using (var zlib = new ZLibStream (m_output.BaseStream, CompressionMode.Compress, true))
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using (var output = new BinaryWriter (zlib))
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{
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if (m_bpp >= 24)
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{
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for (int y = 0; y < m_height; ++y)
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{
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byte ctl = 0;
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output.Write (ctl);
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int dst = y * m_stride;
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int prev_row = dst - m_stride;
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switch (ctl)
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{
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case 0:
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output.Write (m_input, dst, pixel_size);
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for (int x = pixel_size; x < src_stride; ++x)
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{
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output.Write ((byte)(m_input[dst + x] - m_input[dst + x - pixel_size]));
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}
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break;
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case 1:
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for (int x = 0; x < src_stride; ++x)
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{
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output.Write ((byte)(m_input[dst + x] - m_input[prev_row + x]));
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}
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break;
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case 2:
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output.Write (m_input, dst, pixel_size);
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for (int x = pixel_size; x < src_stride; ++x)
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{
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output.Write ((byte)(m_input[dst + x] - m_input[prev_row + x - pixel_size]));
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}
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break;
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case 3:
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for (int x = src_stride - pixel_size; x > 0; --x)
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{
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output.Write ((byte)(m_input[dst++] - m_input[prev_row++ + pixel_size]));
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}
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output.Write (m_input, dst, pixel_size);
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break;
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case 4:
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for (int i = 0; i < pixel_size; ++i)
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{
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int w = m_width;
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byte val = m_input[dst];
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output.Write (val);
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while (w > 0)
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{
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dst += pixel_size;
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if (0 == --w)
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break;
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byte next = m_input[dst];
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output.Write (next);
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if (val == next)
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{
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var count = 255;
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output.Write (count);
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dst += pixel_size * count;
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w -= count;
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if (w > 0)
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{
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val = m_input[dst];
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output.Write (val);
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}
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}
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else
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{
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val = next;
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}
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}
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dst -= src_stride - 1;
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}
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break;
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default:
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break;
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}
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}
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}
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else
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{
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int dst = 0;
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for (int y = 0; y < m_height; ++y)
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{
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m_output.Write (m_input, dst, src_stride);
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dst += m_stride;
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}
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}
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}
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}
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private void WriteV1 ()
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{
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throw new NotImplementedException ("CrxFormat.Write version 1 not implemented");
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}
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#region IDisposable Members
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public void Dispose ()
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{
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}
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#endregion
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}
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}
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}
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