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(Rain): added cgd images decoder.

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morkt 2018-05-03 19:02:42 +04:00
parent f536bfa3da
commit 93dfb358b0
1 changed files with 99 additions and 0 deletions
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99
Legacy/Rain/ArcBIN.cs
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@ -28,6 +28,7 @@ using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Text.RegularExpressions;
using System.Windows.Media;
using GameRes.Compression;
namespace GameRes.Formats.Rain
@ -88,5 +89,103 @@ namespace GameRes.Formats.Rain
lzss.Config.FrameInitPos = 0xFF0;
return lzss;
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
if (!entry.Name.HasExtension ("cgd"))
return base.OpenImage (arc, entry);
var input = OpenEntry (arc, entry);
return new CgdImageDecoder (new BinaryStream (input, entry.Name));
}
}
internal class CgdImageDecoder : BinaryImageDecoder
{
int m_data_length;
int m_blocks_offset;
int m_rgb16_offset;
int m_rgb24_offset;
int m_blocks_w;
int m_blocks_h;
int m_stride;
public CgdImageDecoder (IBinaryStream input) : base (input)
{
var header = m_input.ReadBytes (0x2C);
Info = new ImageMetaData {
Width = header.ToUInt32 (4),
Height = header.ToUInt32 (8),
BPP = 24,
};
m_data_length = header.ToInt32 (0);
m_blocks_offset = header.ToInt32 (0x20);
m_rgb16_offset = header.ToInt32 (0x24);
m_rgb24_offset = header.ToInt32 (0x28);
m_blocks_w = (int)Info.Width / 8;
m_blocks_h = (int)Info.Height / 8;
m_stride = (int)Info.Width * 3;
}
protected override ImageData GetImageData ()
{
int[] blocks;
byte[] pixels;
if (m_blocks_offset != 0)
{
blocks = new int[m_blocks_w * m_blocks_h * 2];
for (int i = 0; i < blocks.Length; ++i)
{
blocks[i] = m_input.ReadInt32();
}
m_input.ReadBytes (m_rgb24_offset-m_rgb16_offset);
pixels = UnpackBlocks (blocks);
}
else
{
m_input.ReadBytes (m_rgb24_offset-m_rgb16_offset);
pixels = m_input.ReadBytes (m_data_length-m_rgb24_offset);
}
return ImageData.Create (Info, PixelFormats.Bgr24, null, pixels, m_stride);
}
byte[] UnpackBlocks (int[] blocks)
{
var output = new byte[m_stride * (int)Info.Height];
int i = 0;
for (int y = 0; y < m_blocks_h; ++y)
{
int dst = y * 8 * m_stride;
for (int x = 0; x < m_blocks_w; )
{
int count = (blocks[i] >> 8) & 0xFF;
int row_length = 0;
switch (blocks[i] >> 16)
{
case 0: row_length = 0; break;
case 1: row_length = 24; break;
case 2:
case 3: row_length = 32; break;
}
for (int j = 0; j < count; ++j)
{
if ((blocks[i] >> 16) != 0)
{
m_input.Read (output, dst, row_length);
dst += row_length;
}
i += 2;
}
if (row_length != 0)
{
m_input.Read (output, dst, 7 * count * row_length);
dst += 7 * count * row_length;
}
x += count;
}
}
return output;
}
}
}