Add detection for BMP files

0xC0000054 · Apr 20, 2022 · 54ed0f1 · 54ed0f1
1 parent b9cecf1
commit 54ed0f1
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/FormatDetection.cs b/src/FormatDetection.cs
@@ -19,6 +19,8 @@ namespace WebPFileType
 {
     internal static class FormatDetection
     {
+        private static ReadOnlySpan<byte> BmpFileSignature => new byte[] { 0x42, 0x4D };
+
         private static ReadOnlySpan<byte> Gif87aFileSignature => new byte[] { 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 };
 
         private static ReadOnlySpan<byte> Gif89aFileSignature => new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 };
@@ -109,6 +111,10 @@ private static string TryGetFileTypeName(ReadOnlySpan<byte> file)
             {
                 name = "PNG";
             }
+            else if (FileSignatureMatches(file, BmpFileSignature))
+            {
+                name = "BMP";
+            }
             else if (IsGifFileSignature(file))
             {
                 name = "GIF";