lifegpc/GARbro-crskycode
1
0
Fork 0
mirror of https://github.com/crskycode/GARbro.git synced 2026-07-08 01:30:18 +08:00
Code Issues Packages Projects Releases Wiki Activity

(EME): switched EmFormat to EmeImageDecoder.

Browse Source 
use OpenImage method override to decode image.
This commit is contained in:
morkt
2017-12-21 04:16:09 +04:00
parent 5923894106
commit 2aa471bc5f
2 changed files with 38 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
ArcFormats/EmonEngine/ArcEME.cs
View File

@@ -2,7 +2,7 @@
//! \date Tue Mar 15 08:13:00 2016
//! \brief Emon Engine (えもんエンジン) resource archives.
//
// Copyright (C) 2016 by morkt
// Copyright (C) 2016-2017 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
@@ -27,7 +27,6 @@ using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Text;
using GameRes.Compression;
using GameRes.Utility;
@@ -91,8 +90,6 @@ namespace GameRes.Formats.EmonEngine
return base.OpenEntry (arc, entry);
if (3 == ement.SubType)
return OpenScript (emarc, ement);
else if (4 == ement.SubType)
return OpenImage (emarc, ement);
else if (5 == ement.SubType && entry.Size > 4)
return OpenT5 (emarc, ement);
else
@@ -140,20 +137,32 @@ namespace GameRes.Formats.EmonEngine
}
}
Stream OpenImage (EmeArchive arc, EmEntry entry)
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var header = new byte[40];
Encoding.ASCII.GetBytes ("EMBM", 0, 4, header, 0);
LittleEndian.Pack ((ushort)entry.LzssFrameSize, header, 4);
LittleEndian.Pack ((ushort)entry.LzssInitPos, header, 6);
arc.File.View.Read (entry.Offset, header, 8, 32);
Decrypt (header, 8, 32, arc.Key);
uint entry_size = entry.Size;
uint colors = LittleEndian.ToUInt16 (header, 14);
if (0 != colors && header[0] != 7)
entry_size += Math.Max (colors, 3u) * 4;
var input = arc.File.CreateStream (entry.Offset+32, entry_size);
return new PrefixStream (header, input);
const int header_size = 32;
var ement = (EmEntry)entry;
if (ement.SubType != 4)
return base.OpenImage (arc, entry);
var emarc = (EmeArchive)arc;
var header = arc.File.View.ReadBytes (entry.Offset, header_size);
Decrypt (header, 0, header_size, emarc.Key);
var info = new EmMetaData {
LzssFrameSize = ement.LzssFrameSize,
LzssInitPos = ement.LzssInitPos,
BPP = header.ToUInt16 (0) & 0xFF,
Width = header.ToUInt16 (2),
Height = header.ToUInt16 (4),
Colors = header.ToUInt16 (6),
Stride = header.ToInt32 (8),
OffsetX = header.ToInt32 (0xC),
OffsetY = header.ToInt32 (0x10),
DataOffset = header_size,
};
uint entry_size = entry.Size + header_size;
if (0 != info.Colors && header[0] != 7)
entry_size += (uint)Math.Max (info.Colors, 3) * 4;
var input = arc.File.CreateStream (entry.Offset, entry_size);
return new EmeImageDecoder (input, info);
}
Stream OpenT5 (EmeArchive arc, EmEntry entry)