Add test images for fax3 compressed tiff

src/ImageSharp/Formats/Tiff/Compression/T4BitReader.cs

@@ -174,14 +174,30 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression
             { 0x9A, 1600 }, { 0x9B, 1728 }
         };
 
+        private static readonly Dictionary<uint, uint> WhiteLen11MakeupCodes = new Dictionary<uint, uint>()
+        {
+            { 0x8, 1792 }, { 0xC, 1856 }, { 0xD, 1920 }
+        };
+
+        private static readonly Dictionary<uint, uint> WhiteLen12MakeupCodes = new Dictionary<uint, uint>()
+        {
+            { 0x12, 1984 }, { 0x13, 2048 }, { 0x14, 2112 }, { 0x15, 2176 }, { 0x16, 2240 }, { 0x17, 2304}, { 0x1C, 2368 }, { 0x1D, 2432 }, { 0x1E, 2496 }, { 0x1F, 2560 }
+        };
+
         private static readonly Dictionary<uint, uint> BlackLen10MakeupCodes = new Dictionary<uint, uint>()
         {
             { 0xF, 64 }
         };
 
+        private static readonly Dictionary<uint, uint> BlackLen11MakeupCodes = new Dictionary<uint, uint>()
+        {
+            { 0x8, 1792 }, { 0xC, 1856 }, { 0xD, 1920 }
+        };
+
         private static readonly Dictionary<uint, uint> BlackLen12MakeupCodes = new Dictionary<uint, uint>()
         {
-            { 0xC8, 128 }, { 0xC9, 192 }, { 0x5B, 256 }, { 0x33, 320 }, { 0x34, 384 }, { 0x35, 448 }
+            { 0xC8, 128 }, { 0xC9, 192 }, { 0x5B, 256 }, { 0x33, 320 }, { 0x34, 384 }, { 0x35, 448 },
+            { 0x12, 1984 }, { 0x13, 2048 }, { 0x14, 2112 }, { 0x15, 2176 }, { 0x16, 2240 }, { 0x17, 2304}, { 0x1C, 2368 }, { 0x1D, 2432 }, { 0x1E, 2496 }, { 0x1F, 2560 } 
         };
 
         private static readonly Dictionary<uint, uint> BlackLen13MakeupCodes = new Dictionary<uint, uint>()
@@ -481,6 +497,16 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression
                 {
                     return WhiteLen9MakeupCodes[this.value];
                 }
+
+                case 11:
+                {
+                    return WhiteLen11MakeupCodes[this.value];
+                }
+
+                case 12:
+                {
+                    return WhiteLen12MakeupCodes[this.value];
+                }
             }
 
             return 0;
@@ -495,6 +521,11 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression
                     return BlackLen10MakeupCodes[this.value];
                 }
 
+                case 11:
+                {
+                    return BlackLen11MakeupCodes[this.value];
+                }
+
                 case 12:
                 {
                     return BlackLen12MakeupCodes[this.value];
@@ -547,6 +578,16 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression
                 {
                     return WhiteLen9MakeupCodes.ContainsKey(this.value);
                 }
+
+                case 11:
+                {
+                    return WhiteLen11MakeupCodes.ContainsKey(this.value);
+                }
+
+                case 12:
+                {
+                    return WhiteLen12MakeupCodes.ContainsKey(this.value);
+                }
             }
 
             return false;
@@ -561,6 +602,11 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression
                     return BlackLen10MakeupCodes.ContainsKey(this.value);
                 }
 
+                case 11:
+                {
+                    return BlackLen11MakeupCodes.ContainsKey(this.value);
+                }
+
                 case 12:
                 {
                     return BlackLen12MakeupCodes.ContainsKey(this.value);

tests/ImageSharp.Tests/TestImages.cs

@@ -511,6 +511,10 @@ namespace SixLabors.ImageSharp.Tests
             public const string Calliphora_RgbLzw_Predictor = "Tiff/Calliphora_rgb_lzw.tiff";
             public const string Calliphora_RgbPackbits = "Tiff/Calliphora_rgb_packbits.tiff";
             public const string Calliphora_RgbUncompressed = "Tiff/Calliphora_rgb_uncompressed.tiff";
+            public const string Calliphora_Fax3Compressed = "Tiff/Calliphora_ccitt_fax3.tif";
+
+            public const string CcittFax3AllTermCodes = "Tiff/ccitt_fax3_all_terminating_codes.tif";
+            public const string CcittFax3AllMakupCodes = "Tiff/ccitt_fax3_all_makeup_codes.tif";
 
             public const string GrayscaleDeflateMultistrip = "Tiff/grayscale_deflate_multistrip.tiff";
             public const string GrayscaleUncompressed = "Tiff/grayscale_uncompressed.tiff";
@@ -541,7 +545,7 @@ namespace SixLabors.ImageSharp.Tests
 
             public const string SampleMetadata = "Tiff/metadata_sample.tiff";
 
-            public static readonly string[] All = { Calliphora_GrayscaleUncompressed, Calliphora_PaletteUncompressed, /*Calliphora_RgbDeflate_Predictor, Calliphora_RgbLzwe_Predictor, */ Calliphora_RgbPackbits, Calliphora_RgbUncompressed, GrayscaleDeflateMultistrip, GrayscaleUncompressed, PaletteDeflateMultistrip, PaletteUncompressed, /*RgbDeflate_Predictor,*/ RgbDeflateMultistrip, /*RgbJpeg,*/ /*RgbLzw_Predictor, RgbLzwMultistrip_Predictor,*/ RgbLzw_NoPredictor_Multistrip, RgbLzw_NoPredictor_Multistrip_Motorola, RgbLzw_NoPredictor_Singlestrip_Motorola, RgbPackbits, RgbPackbitsMultistrip, RgbUncompressed, /* MultiframeLzw_Predictor, MultiFrameDifferentVariants, SampleMetadata,*/ SmallRgbDeflate, SmallRgbLzw, };
+            public static readonly string[] All = { Calliphora_GrayscaleUncompressed, Calliphora_PaletteUncompressed, /*Calliphora_RgbDeflate_Predictor, Calliphora_RgbLzwe_Predictor, */ Calliphora_RgbPackbits, Calliphora_RgbUncompressed, Calliphora_Fax3Compressed, CcittFax3AllTermCodes, CcittFax3AllMakupCodes, GrayscaleDeflateMultistrip, GrayscaleUncompressed, PaletteDeflateMultistrip, PaletteUncompressed, /*RgbDeflate_Predictor,*/ RgbDeflateMultistrip, /*RgbJpeg,*/ /*RgbLzw_Predictor, RgbLzwMultistrip_Predictor,*/ RgbLzw_NoPredictor_Multistrip, RgbLzw_NoPredictor_Multistrip_Motorola, RgbLzw_NoPredictor_Singlestrip_Motorola, RgbPackbits, RgbPackbitsMultistrip, RgbUncompressed, /* MultiframeLzw_Predictor, MultiFrameDifferentVariants, SampleMetadata,*/ SmallRgbDeflate, SmallRgbLzw, };
 
             public static readonly string[] Multiframes = { MultiframeDeflateWithPreview /*MultiframeLzw_Predictor, MultiFrameDifferentSize, MultiframeDifferentSizeTiled, MultiFrameDifferentVariants,*/ };
 

tests/Images/Input/Tiff/Calliphora_ccitt_fax3.tif

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a45c92b187e7a59247ccc50f418379e91fd169b39fa7fc8a6dcda9b092fc3013
+size 125776

tests/Images/Input/Tiff/ccitt_fax3_all_makeupcodes_codes.tif

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3b1a0af9ace55d5d4b86225cb569a8632b6a6bb621fa1dc56a7d3d6404eba7bb
+size 360

tests/Images/Input/Tiff/ccitt_fax3_all_terminating_codes.tif

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:faa92346ccff9cc7e3275b31cbc4ec054e27d0d0ed20a215a22b6178c2d7adf0
+size 564