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(AJP): implemented version 1 images.

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This commit is contained in:
morkt 2018-09-07 15:50:40 +04:00
parent f1a201d571
commit e096a407d3
1 changed files with 35 additions and 17 deletions
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52
ArcFormats/AliceSoft/ImageAJP.cs
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@ -2,7 +2,7 @@
//! \date Mon Sep 12 21:25:27 2016
//! \brief AliceSoft JPEG image.
//
// Copyright (C) 2016 by morkt
// Copyright (C) 2016-2018 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
@ -27,6 +27,7 @@ using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using GameRes.Compression;
using GameRes.Utility;
namespace GameRes.Formats.AliceSoft
@ -37,6 +38,7 @@ namespace GameRes.Formats.AliceSoft
public uint ImageSize;
public uint AlphaOffset;
public uint AlphaSize;
public uint AlphaUnpacked;
}
[Export(typeof(ImageFormat))]
@ -52,20 +54,23 @@ namespace GameRes.Formats.AliceSoft
public override ImageMetaData ReadMetaData (IBinaryStream stream)
{
var header = new byte[0x18];
stream.Position = 0xC;
if (header.Length != stream.Read (header, 0, header.Length))
var header = stream.ReadHeader (0x24);
int version = header.ToInt32 (4);
if (version < 0)
return null;
return new AjpMetaData
var info = new AjpMetaData
{
Width = LittleEndian.ToUInt32 (header, 0),
Height = LittleEndian.ToUInt32 (header, 4),
Width = header.ToUInt32 (0xC),
Height = header.ToUInt32 (0x10),
BPP = 32,
ImageOffset = LittleEndian.ToUInt32 (header, 8),
ImageSize = LittleEndian.ToUInt32 (header, 0xC),
AlphaOffset = LittleEndian.ToUInt32 (header, 0x10),
AlphaSize = LittleEndian.ToUInt32 (header, 0x14),
ImageOffset = header.ToUInt32 (0x14),
ImageSize = header.ToUInt32 (0x18),
AlphaOffset = header.ToUInt32 (0x1C),
AlphaSize = header.ToUInt32 (0x20),
};
if (version > 0)
info.AlphaUnpacked = stream.ReadUInt32();
return info;
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
@ -89,16 +94,29 @@ namespace GameRes.Formats.AliceSoft
pixels = new byte[stride * (int)meta.Height];
bitmap.CopyPixels (pixels, stride, 0);
}
using (var mask = DecryptStream (stream.AsStream, meta.AlphaOffset, meta.AlphaSize))
Stream mask = DecryptStream (stream.AsStream, meta.AlphaOffset, meta.AlphaSize);
byte[] alpha;
if (meta.AlphaUnpacked != 0)
{
var alpha = ReadMask (mask);
int src = 0;
for (int dst = 3; dst < pixels.Length; dst += 4)
using (mask = new ZLibStream (mask, CompressionMode.Decompress))
{
pixels[dst] = alpha[src++];
alpha = new byte[meta.AlphaUnpacked];
mask.Read (alpha, 0, alpha.Length);
}
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels, stride);
}
else
{
using (mask)
{
alpha = ReadMask (mask);
}
}
int src = 0;
for (int dst = 3; dst < pixels.Length; dst += 4)
{
pixels[dst] = alpha[src++];
}
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels, stride);
}
Stream DecryptStream (Stream input, uint offset, uint size)