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

54
ArcFormats/EmonEngine/ImageBMP.cs
View File

@@ -2,7 +2,7 @@
//! \date Wed Mar 16 01:08:47 2016
//! \brief Emon Engine compressed images.
//
// 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
@@ -24,7 +24,6 @@
//
using System;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
@@ -41,47 +40,23 @@ namespace GameRes.Formats.EmonEngine
public int DataOffset;
}
[Export(typeof(ImageFormat))]
public class EmFormat : ImageFormat
internal class EmeImageDecoder : BinaryImageDecoder
{
public override string Tag { get { return "EM/BMP"; } }
public override string Description { get { return "Emon Engine image format"; } }
// this is an artificial prefix embedded into stream by EmeOpener.OpenImage
public override uint Signature { get { return 0x4D424D45; } } // 'EMBM'
public EmFormat ()
public EmeImageDecoder (IBinaryStream input, EmMetaData info) : base (input, info)
{
Extensions = new string[] { "bmp" };
}
public override ImageMetaData ReadMetaData (IBinaryStream stream)
protected override ImageData GetImageData ()
{
stream.ReadInt32();
var info = new EmMetaData();
info.LzssFrameSize = stream.ReadUInt16();
info.LzssInitPos = stream.ReadUInt16();
info.BPP = stream.ReadUInt16() & 0xFF;
info.Width = stream.ReadUInt16();
info.Height = stream.ReadUInt16();
info.Colors = stream.ReadUInt16();
info.Stride = stream.ReadInt32();
info.OffsetX = stream.ReadInt32();
info.OffsetY = stream.ReadInt32();
info.DataOffset = 40;
return info;
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
var meta = (EmMetaData)info;
stream.Position = meta.DataOffset;
var meta = (EmMetaData)Info;
m_input.Position = meta.DataOffset;
BitmapPalette palette = null;
if (meta.Colors != 0)
palette = ReadPalette (stream.AsStream, Math.Max (meta.Colors, 3), PaletteFormat.RgbX);
var pixels = new byte[meta.Stride * (int)info.Height];
palette = ImageFormat.ReadPalette (m_input.AsStream, Math.Max (meta.Colors, 3), PaletteFormat.RgbX);
var pixels = new byte[meta.Stride * (int)meta.Height];
if (meta.LzssFrameSize != 0)
{
using (var lzss = new LzssStream (stream.AsStream, LzssMode.Decompress, true))
using (var lzss = new LzssStream (m_input.AsStream, LzssMode.Decompress, true))
{
lzss.Config.FrameSize = meta.LzssFrameSize;
lzss.Config.FrameInitPos = meta.LzssInitPos;
@@ -91,11 +66,11 @@ namespace GameRes.Formats.EmonEngine
}
else
{
if (pixels.Length != stream.Read (pixels, 0, pixels.Length))
if (pixels.Length != m_input.Read (pixels, 0, pixels.Length))
throw new EndOfStreamException();
}
if (7 == meta.BPP)
return ImageData.Create (info, PixelFormats.Gray8, palette, pixels, meta.Stride);
return ImageData.Create (Info, PixelFormats.Gray8, palette, pixels, meta.Stride);
PixelFormat format;
if (32 == meta.BPP)
@@ -104,12 +79,7 @@ namespace GameRes.Formats.EmonEngine
format = PixelFormats.Bgr24;
else
format = PixelFormats.Indexed8;
return ImageData.CreateFlipped (info, format, palette, pixels, meta.Stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("EmFormat.Write not implemented");
return ImageData.CreateFlipped (Info, format, palette, pixels, meta.Stride);
}
}
}