Move RGBA image contract to model

engine/Age.Engine/Hosting/IHost.cs

@@ -1,5 +1,4 @@
 using Age.Engine.Model;
-using Age.Engine.Sys4;
 
 namespace Age.Engine.Hosting;
 

engine/Age.Engine/Model/RgbaImage.cs

@@ -0,0 +1,4 @@
+namespace Age.Engine.Model;
+
+/// <summary>A decoded, tightly packed, top-down RGBA8 image.</summary>
+public sealed record RgbaImage(int Width, int Height, byte[] Pixels);

engine/Age.Engine/Persistence/NumberedThumbnailCodec.cs

@@ -1,5 +1,5 @@
 using System.Buffers.Binary;
-using Age.Engine.Sys4;
+using Age.Engine.Model;
 
 namespace Age.Engine.Persistence;
 

engine/Age.Engine/Sys4/AgfDecoder.cs

@@ -1,10 +1,8 @@
 using System.Buffers.Binary;
+using Age.Engine.Model;
 
 namespace Age.Engine.Sys4;
 
-/// <summary>A decoded, tightly packed, top-down RGBA8 image.</summary>
-public sealed record RgbaImage(int Width, int Height, byte[] Pixels);
-
 /// <summary>
 /// Platform-neutral Eushully AGF decoder. Format algorithm ported from GARbro's MIT-licensed
 /// ArcFormats/Eushully/ImageAGF.cs (Copyright (C) 2015 morkt).

engine/Age.Engine/Sys4/CurDecoder.cs

@@ -1,4 +1,5 @@
 using System.Buffers.Binary;
+using Age.Engine.Model;
 
 namespace Age.Engine.Sys4;
 

engine/Age.Engine/Sys4/ResourceMap.cs

@@ -1,3 +1,5 @@
+using Age.Engine.Model;
+
 namespace Age.Engine.Sys4;
 
 /// <summary>

engine/Age.Engine/Sys4/RgbaSurfaceOps.cs

@@ -1,3 +1,5 @@
+using Age.Engine.Model;
+
 namespace Age.Engine.Sys4;
 
 /// <summary>Platform-neutral mutation helpers for AGE's software-modeled RGBA surfaces.</summary>

engine/Age.Engine/Text/AgeGlyphMaskCompositor.cs

@@ -1,5 +1,4 @@
 using Age.Engine.Model;
-using Age.Engine.Sys4;
 
 namespace Age.Engine.Text;
 

engine/Age.Engine/Text/ImmediateSurfaceTextRenderer.cs

@@ -1,6 +1,5 @@
 using System.Text;
 using Age.Engine.Model;
-using Age.Engine.Sys4;
 
 namespace Age.Engine.Text;
 

engine/Age.Engine/Text/RetainedGlyphLayoutEngine.cs

@@ -1,5 +1,4 @@
 using Age.Engine.Model;
-using Age.Engine.Sys4;
 
 namespace Age.Engine.Text;