Imagesharp: Image.Load() with System.ArgumentException "Not a valid pass index: 7"

[xakep139]

Prerequisites

• [X] I have written a descriptive issue title
• [X] I have verified that I am running the latest version of ImageSharp
• [ ] I have verified if the problem exist in both DEBUG and RELEASE mode
• [X] I have searched open and closed issues to ensure it has not already been reported

Description

I try to load PNG image that displays normally. It also loads normally with .NET Framework's System.Drawing.Image.FromFile() and with ImageMagick.

Steps to Reproduce

Simple code:

Image.Load("banner.png");

with image banner_adam7.zip cause an System.ArgumentException with stacktrace:

   at ImageSharp.Formats.PngDecoderCore.ComputeColumnsAdam7(Int32 passIndex)
   at ImageSharp.Formats.PngDecoderCore.DecodeInterlacedPixelData[TPixel](Stream compressedStream, Image`1 image)
   at ImageSharp.Formats.PngDecoderCore.Decode[TPixel](Stream stream)
   at ImageSharp.Image.Decode[TPixel](Stream stream, Configuration config)
   at ImageSharp.Image.WithSeekableStream[T](Stream stream, Func`2 action)
   at ImageSharp.Image.Load[TPixel](Configuration config, Stream stream, IImageFormat& format)
   at ImageSharp.Image.Load[TPixel](Configuration config, String path)
   at ImageSharp.Image.Load(String path)
   at ImageSharpTest.Program.Main(String[] args) in C:\Users\user\Documents\Visual Studio 2017\Projects\ImageSharpTest\Program.cs:line 13

System Configuration

• ImageSharp version: 1.0.0-alpha9-00187
• Environment (Operating system, version and so on): Windows 10 Enterprise Version 1703 Build 15063.540
• Visual Studio Professional 2017 Version 15.3.2
• dotnet --info output:

.NET Command Line Tools (2.0.0)

Product Information:
 Version:            2.0.0
 Commit SHA-1 hash:  cdcd1928c9

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.15063
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\2.0.0\

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0
  Build    : e8b8861ac7faf042c87a5c2f9f2d04c98b69f28d

[JimBobSquarePants]

Thanks!

This will definitely be related to #301. I'm hoping someone can help out here as we've got a regressive issue I can't solve.

[xakep139]

I've seen #301 but supposed that those cases don't cause an exception

[JimBobSquarePants]

You're absolutely right to open this issue as they don't. I just mean that fixing that issue will most likely fix this one. (or vice versa)

[JimBobSquarePants]

Fixed!