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(TINK): work-around for PNG images.

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morkt 2022-04-29 15:07:39 +04:00
parent 6904afe2f1
commit 6a4a9a3c46
1 changed files with 13 additions and 6 deletions
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19
ArcFormats/Cyberworks/ImageTINK.cs
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@ -2,7 +2,7 @@
//! \date Fri Jun 17 18:49:04 2016
//! \brief Tinker Bell encrypted image file.
//
// Copyright (C) 2016-2017 by morkt
// Copyright (C) 2016-2022 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
@ -28,6 +28,7 @@ using System.Collections.Generic;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using GameRes.Utility;
namespace GameRes.Formats.Cyberworks
{
@ -145,11 +146,17 @@ namespace GameRes.Formats.Cyberworks
{
var size_buf = new byte[4];
input.Read (size_buf, 0 , 4);
if ('c' == type)
input.ReadByte();
var decoder = new PngBitmapDecoder (input, BitmapCreateOptions.None,
BitmapCacheOption.OnLoad);
BitmapSource frame = decoder.Frames[0];
int png_size = BigEndian.ToInt32 (size_buf, 0);
BitmapSource frame;
// work-around for possible extra padding before PNG data
using (var membuf = new MemoryStream (png_size+4))
{
input.CopyTo (membuf);
membuf.Seek (-png_size, SeekOrigin.End);
var decoder = new PngBitmapDecoder (membuf, BitmapCreateOptions.None,
BitmapCacheOption.OnLoad);
frame = decoder.Frames[0];
}
Info.Width = (uint)frame.PixelWidth;
Info.Height = (uint)frame.PixelHeight;
if (frame.Format.BitsPerPixel != 32)