commit 52214ab28d624e0c505e1073d26305169d133ffc
author Alexey Knyazev <3479527+lexaknyazev@users.noreply.github.com> Sun Oct 24 01:59:32 2021 +0400
committer GitHub <noreply@github.com> Sun Oct 24 01:59:32 2021 +0400
tree 736603ee8ad941e07fa3f4976cd1ae11b888f137
parent 646a9f826131cb0b9e14b5e4740874808315f83a

Disallow all-zero-length Huffman tables

transcoder/basisu_transcoder_internal.h

diff --git a/transcoder/basisu_transcoder_internal.h b/transcoder/basisu_transcoder_internal.h
index 2422d78..3adb709 100644
--- a/transcoder/basisu_transcoder_internal.h
+++ b/transcoder/basisu_transcoder_internal.h
@@ -160,7 +160,7 @@
 				next_code[i + 1] = (total = ((total + syms_using_codesize[i]) << 1));
 			}
 
-			if (((1U << basisu::cHuffmanMaxSupportedInternalCodeSize) != total) && (used_syms > 1U))
+			if (((1U << basisu::cHuffmanMaxSupportedInternalCodeSize) != total) && (used_syms != 1U))
 				return false;
 
 			for (int tree_next = -1, sym_index = 0; sym_index < (int)total_syms; ++sym_index)