Change ImageFormatException to InvalidImageContentException

src/ImageSharp/Common/Exceptions/InvalidImageContentException.cs

@@ -1,6 +1,8 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
+using System;
+
 namespace SixLabors.ImageSharp
 {
     /// <summary>
@@ -18,5 +20,17 @@ namespace SixLabors.ImageSharp
             : base(errorMessage)
         {
         }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="InvalidImageContentException"/> class with the name of the
+        /// parameter that causes this exception.
+        /// </summary>
+        /// <param name="errorMessage">The error message that explains the reason for this exception.</param>
+        /// <param name="innerException">The exception that is the cause of the current exception, or a null reference (Nothing in Visual Basic)
+        /// if no inner exception is specified.</param>
+        public InvalidImageContentException(string errorMessage, Exception innerException)
+            : base(errorMessage, innerException)
+        {
+        }
     }
 }

src/ImageSharp/Formats/Bmp/BmpDecoder.cs

@@ -43,9 +43,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
             {
                 Size dims = decoder.Dimensions;
 
-                // TODO: use InvalidImageContentException here, if we decide to define it
+                throw new InvalidImageContentException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}. This error can happen for very large RLE bitmaps, which are not supported.", ex);
-                // https://github.com/SixLabors/ImageSharp/issues/1110
-                throw new ImageFormatException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}. This error can happen for very large RLE bitmaps, which are not supported.", ex);
             }
         }
 

src/ImageSharp/Formats/Gif/GifDecoder.cs

@@ -38,9 +38,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
             {
                 Size dims = decoder.Dimensions;
 
-                // TODO: use InvalidImageContentException here, if we decide to define it
+                throw new InvalidImageContentException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}.", ex);
-                // https://github.com/SixLabors/ImageSharp/issues/1110
-                throw new ImageFormatException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}.", ex);
             }
         }
 

src/ImageSharp/Formats/Jpeg/JpegDecoder.cs

@@ -32,9 +32,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
             {
                 (int w, int h) = (decoder.ImageWidth, decoder.ImageHeight);
 
-                // TODO: use InvalidImageContentException here, if we decide to define it
+                throw new InvalidImageContentException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {w}x{h}.", ex);
-                // https://github.com/SixLabors/ImageSharp/issues/1110
-                throw new ImageFormatException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {w}x{h}.", ex);
             }
         }
 

src/ImageSharp/Formats/Png/PngDecoder.cs

@@ -54,9 +54,7 @@ namespace SixLabors.ImageSharp.Formats.Png
             {
                 Size dims = decoder.Dimensions;
 
-                // TODO: use InvalidImageContentException here, if we decide to define it
+                throw new InvalidImageContentException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}.", ex);
-                // https://github.com/SixLabors/ImageSharp/issues/1110
-                throw new ImageFormatException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}.", ex);
             }
         }
 

src/ImageSharp/Formats/Tga/TgaDecoder.cs

@@ -28,9 +28,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
             {
                 Size dims = decoder.Dimensions;
 
-                // TODO: use InvalidImageContentException here, if we decide to define it
+                throw new InvalidImageContentException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}.", ex);
-                // https://github.com/SixLabors/ImageSharp/issues/1110
-                throw new ImageFormatException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {dims.Width}x{dims.Height}.", ex);
             }
         }