Exception when using enabling HintingMode with Runic / Ogham font

[Socolin]

Prerequisites

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

Fonts version

3.0.0-alpha.0.13

Other Six Labors packages and versions

4.0.0-alpha.0.57 / Drawing: 3.0.0-alpha.0.6

Environment (Operating system, version and so on)

Ubuntu 24.04

.NET Framework version

.net 9.0

Description

I'm getting this exception when using HintingMode with some specific fonts

Unhandled exception. System.ArgumentOutOfRangeException: Parameter "index" (System.Int32) must be between or equal to 0 and 25, was 39 (Parameter 'index')
   at SixLabors.ThrowHelper.ThrowArgumentOutOfRangeException(String name, String message)
   at SixLabors.ThrowHelper.ThrowArgumentOutOfRangeExceptionForMustBeBetweenOrEqualTo[T](T value, T minimum, T maximum, String name)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.CheckIndex(Int32 index, Int32 length)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.ReadCvt()
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.HintGlyph(ControlPoint[] controlPoints, IReadOnlyList`1 endPoints, ReadOnlyMemory`1 instructions, Boolean isComposite)
   at SixLabors.Fonts.Tables.TrueType.Glyphs.GlyphVector.Hint(HintingMode hintingMode, GlyphVector& glyph, TrueTypeInterpreter interpreter, Vector2 pp1, Vector2 pp2, Vector2 pp3, Vector2 pp4)
   at SixLabors.Fonts.StreamFontMetrics.ApplyTrueTypeHinting(HintingMode hintingMode, GlyphMetrics metrics, GlyphVector& glyphVector, Vector2 scaleXY, Single pixelSize)
   at SixLabors.Fonts.Tables.TrueType.TrueTypeGlyphMetrics.<>c__DisplayClass7_0.<RenderTo>b__0(Single _)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
   at SixLabors.Fonts.Tables.TrueType.TrueTypeGlyphMetrics.RenderTo(IGlyphRenderer renderer, Int32 graphemeIndex, Vector2 location, Vector2 offset, GlyphLayoutMode mode, TextOptions options)
   at SixLabors.Fonts.Glyph.RenderTo(IGlyphRenderer surface, Int32 graphemeIndex, Vector2 location, Vector2 offset, GlyphLayoutMode mode, TextOptions options)
   at SixLabors.Fonts.Rendering.TextRenderer.RenderText(ReadOnlySpan`1 text, TextOptions options)
   at SixLabors.Fonts.Rendering.TextRenderer.RenderText(String text, TextOptions options)
   at SixLabors.ImageSharp.Drawing.Processing.Processors.Text.DrawTextProcessor`1.BeforeImageApply()
   at SixLabors.ImageSharp.Processing.Processors.ImageProcessor`1.SixLabors.ImageSharp.Processing.Processors.IImageProcessor<TPixel>.Execute()
   at SixLabors.ImageSharp.Processing.DefaultImageProcessorContext`1.ApplyProcessor(IImageProcessor processor, Rectangle rectangle)
   at SixLabors.ImageSharp.Processing.DefaultImageProcessorContext`1.ApplyProcessor(IImageProcessor processor)
   at SixLabors.ImageSharp.Drawing.Processing.DrawTextExtensions.DrawText(IImageProcessingContext source, DrawingOptions drawingOptions, RichTextOptions textOptions, String text, Brush brush, Pen pen)
   at SixLabors.ImageSharp.Drawing.Processing.DrawTextExtensions.DrawText(IImageProcessingContext source, RichTextOptions textOptions, String text, Brush brush, Pen pen)
   at SixLabors.ImageSharp.Drawing.Processing.DrawTextExtensions.DrawText(IImageProcessingContext source, RichTextOptions textOptions, String text, Color color)
   at ImageSharpFont.HintingModeCrash.<>c__DisplayClass0_0.<Render>b__1(IImageProcessingContext x) in /tmp/repro/HintingModeCrash.cs:line 35
   at SixLabors.ImageSharp.Processing.ProcessingExtensions.Mutate[TPixel](Image`1 source, Configuration configuration, Action`1 operation)
   at SixLabors.ImageSharp.Processing.ProcessingExtensions.Mutate[TPixel](Image`1 source, Action`1 operation)
   at ImageSharpFont.HintingModeCrash.<Render>g__Draw|0_0(String title, FontFamily fontFamily, String text) in /tmp/repro/HintingModeCrash.cs:line 35
   at ImageSharpFont.HintingModeCrash.Render() in /tmp/repro/HintingModeCrash.cs:line 17
   at Program.<Main>$(String[] args) in /tmp/repro/Program.cs:line 3

Steps to Reproduce

See the repro: repro.zip

Basically enabling HintingMode when rendering with Noto Sans Ogham or Noto Sans Runic

Images

No response

[jcoqueret-mediaclip]

I have a very similar issue using a more 'common' font and caracters.

I am using the font MgOpen Canonica and writing a very simple text with Latin letters.
With the HintingMode set to Standard, I have the following error:

Unhandled exception. System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Zone.GetCurrent(Int32 index)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.Execute(StackInstructionStream stream, Boolean inFunction, Boolean allowFunctionDefs)
   at SixLabors.Fonts.Tables.TrueType.Hinting.TrueTypeInterpreter.HintGlyph(ControlPoint[] controlPoints, IReadOnlyList`1 endPoints, ReadOnlyMemory`1 instructions, Boolean isComposite)
   at SixLabors.Fonts.Tables.TrueType.Glyphs.GlyphVector.Hint(HintingMode hintingMode, GlyphVector& glyph, TrueTypeInterpreter interpreter, Vector2 pp1, Vector2 pp2, Vector2 pp3, Vector2 pp4)
   at SixLabors.Fonts.StreamFontMetrics.ApplyTrueTypeHinting(HintingMode hintingMode, GlyphMetrics metrics, GlyphVector& glyphVector, Vector2 scaleXY, Single pixelSize)
   at SixLabors.Fonts.Tables.TrueType.TrueTypeGlyphMetrics.<>c__DisplayClass7_0.<RenderTo>b__0(Single _)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
   at SixLabors.Fonts.Tables.TrueType.TrueTypeGlyphMetrics.RenderTo(IGlyphRenderer renderer, Int32 graphemeIndex, Vector2 location, Vector2 offset, GlyphLayoutMode mode, TextOptions options)
   at SixLabors.Fonts.Glyph.RenderTo(IGlyphRenderer surface, Int32 graphemeIndex, Vector2 location, Vector2 offset, GlyphLayoutMode mode, TextOptions options)
   at SixLabors.Fonts.Rendering.TextRenderer.RenderText(ReadOnlySpan`1 text, TextOptions options)
   at SixLabors.Fonts.Rendering.TextRenderer.RenderText(String text, TextOptions options)
   at SixLabors.ImageSharp.Drawing.Processing.Processors.Text.DrawTextProcessor`1.BeforeImageApply()
   at SixLabors.ImageSharp.Processing.Processors.ImageProcessor`1.SixLabors.ImageSharp.Processing.Processors.IImageProcessor<TPixel>.Execute()
   at SixLabors.ImageSharp.Processing.DefaultImageProcessorContext`1.ApplyProcessor(IImageProcessor processor, Rectangle rectangle)
   at SixLabors.ImageSharp.Processing.DefaultImageProcessorContext`1.ApplyProcessor(IImageProcessor processor)
   at SixLabors.ImageSharp.Drawing.Processing.DrawTextExtensions.DrawText(IImageProcessingContext source, DrawingOptions drawingOptions, RichTextOptions textOptions, String text, Brush brush, Pen pen)
   at SixLabors.ImageSharp.Drawing.Processing.DrawTextExtensions.DrawText(IImageProcessingContext source, RichTextOptions textOptions, String text, Brush brush, Pen pen)
   at SixLabors.ImageSharp.Drawing.Processing.DrawTextExtensions.DrawText(IImageProcessingContext source, RichTextOptions textOptions, String text, Color color)
   at ImageSharpFont.HintingModeCrash.<>c__DisplayClass0_0.<Render>b__1(IImageProcessingContext x) in ./HintingModeCrash.cs:line 26
   at SixLabors.ImageSharp.Processing.ProcessingExtensions.Mutate[TPixel](Image`1 source, Configuration configuration, Action`1 operation)
   at SixLabors.ImageSharp.Processing.ProcessingExtensions.Mutate[TPixel](Image`1 source, Action`1 operation)
   at ImageSharpFont.HintingModeCrash.<Render>g__Draw|0_0(String title, FontFamily fontFamily, String text) in ./HintingModeCrash.cs:line 26
   at ImageSharpFont.HintingModeCrash.Render() in ./HintingModeCrash.cs:line 16
   at Program.<Main>$(String[] args) in ./Program.cs:line 3

I used the project from the initial post to reproduce the problem: repro.zip.
I did not create another issue since it looks very closed to the initial post.