Add more tga test cases for paletted rle images

tests/ImageSharp.Tests/Formats/Tga/TgaDecoderTests.cs

@@ -6,6 +6,7 @@ using Microsoft.DotNet.RemoteExecutor;
 using SixLabors.ImageSharp.Formats.Tga;
 using SixLabors.ImageSharp.Memory;
 using SixLabors.ImageSharp.PixelFormats;
+using SixLabors.ImageSharp.Processing;
 using SixLabors.ImageSharp.Tests.TestUtilities;
 using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
 using Xunit;
@@ -499,6 +500,54 @@ namespace SixLabors.ImageSharp.Tests.Formats.Tga
             }
         }
 
+        [Theory]
+        [WithFile(Bit32PalRleTopLeft, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_Paletted_WithTopLeftOrigin_32Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
+        [Theory]
+        [WithFile(Bit32PalRleBottomLeft, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_Paletted_WithBottomLeftOrigin_32Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
+        [Theory]
+        [WithFile(Bit32PalRleTopRight, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_WithTopRightOrigin_32Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
+        [Theory]
+        [WithFile(Bit32PalRleBottomRight, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_Paletted_WithBottomRightOrigin_32Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
         [Theory]
         [WithFile(Bit16PalBottomLeft, PixelTypes.Rgba32)]
         public void TgaDecoder_CanDecode_WithPaletteBottomLeftOrigin_16Bit<TPixel>(TestImageProvider<TPixel> provider)
@@ -559,6 +608,54 @@ namespace SixLabors.ImageSharp.Tests.Formats.Tga
             }
         }
 
+        [Theory]
+        [WithFile(Bit24PalRleTopLeft, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_WithPaletteTopLeftOrigin_24Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
+        [Theory]
+        [WithFile(Bit24PalRleTopRight, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_WithPaletteTopRightOrigin_24Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
+        [Theory]
+        [WithFile(Bit24PalRleBottomLeft, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_WithPaletteBottomLeftOrigin_24Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
+        [Theory]
+        [WithFile(Bit24PalRleBottomRight, PixelTypes.Rgba32)]
+        public void TgaDecoder_CanDecode_RLE_WithPaletteBottomRightOrigin_24Bit<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            using (Image<TPixel> image = provider.GetImage(TgaDecoder))
+            {
+                image.DebugSave(provider);
+                TgaTestUtils.CompareWithReferenceDecoder(provider, image);
+            }
+        }
+
         [Theory]
         [WithFile(Bit32PalTopLeft, PixelTypes.Rgba32)]
         public void TgaDecoder_CanDecode_WithPalette_32Bit<TPixel>(TestImageProvider<TPixel> provider)

tests/ImageSharp.Tests/TestImages.cs

@@ -417,6 +417,11 @@ namespace SixLabors.ImageSharp.Tests
             public const string Bit24PalBottomLeft = "Tga/targa_24bit_pal.tga";
             public const string Bit24PalBottomRight = "Tga/indexed_LR.tga";
 
+            public const string Bit24PalRleTopLeft = "Tga/indexed_rle_UL.tga";
+            public const string Bit24PalRleBottomLeft = "Tga/indexed_rle_LL.tga";
+            public const string Bit24PalRleTopRight = "Tga/indexed_rle_UR.tga";
+            public const string Bit24PalRleBottomRight = "Tga/indexed_rle_LR.tga";
+
             public const string Bit32TopLeft = "Tga/rgb_a_UL.tga";
             public const string Bit32BottomLeft = "Tga/targa_32bit.tga";
             public const string Bit32TopRight = "Tga/rgb_a_UR.tga";
@@ -432,6 +437,11 @@ namespace SixLabors.ImageSharp.Tests
             public const string Bit32RleBottomRight = "Tga/rgb_a_rle_LR.tga";
             public const string Bit32RleBottomLeft = "Tga/targa_32bit_rle.tga";
 
+            public const string Bit32PalRleTopLeft = "Tga/indexed_a_rle_UL.tga";
+            public const string Bit32PalRleBottomLeft = "Tga/indexed_a_rle_LL.tga";
+            public const string Bit32PalRleTopRight = "Tga/indexed_a_rle_UR.tga";
+            public const string Bit32PalRleBottomRight = "Tga/indexed_a_rle_LR.tga";
+
             public const string NoAlphaBits16Bit = "Tga/16bit_noalphabits.tga";
             public const string NoAlphaBits16BitRle = "Tga/16bit_rle_noalphabits.tga";
             public const string NoAlphaBits32Bit = "Tga/32bit_no_alphabits.tga";