diff options
| -rw-r--r-- | engines/composer/composer.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/engines/composer/composer.cpp b/engines/composer/composer.cpp index 639b077ed7..accbe7dda5 100644 --- a/engines/composer/composer.cpp +++ b/engines/composer/composer.cpp @@ -1389,8 +1389,10 @@ static void decompressSLWM(byte *buffer, Common::SeekableReadStream *stream) { count += 2; start++; - memcpy(buffer, buffer - start, count); - buffer += count; + for (uint i = 0; i < count; i++) { + *buffer = *(buffer - start); + buffer++; + } } } @@ -1441,8 +1443,11 @@ void ComposerEngine::decompressBitmap(uint16 type, Common::SeekableReadStream *s size -= 2; } count += 4; - memcpy(buffer, buffer - step - 1, count); - buffer += count; + // this is often overlapping (for repeating patterns) + for (uint i = 0; i < count; i++) { + *buffer = *(buffer - step - 1); + buffer++; + } } break; case kBitmapRLESLWM: |