CMS: Do proper clipping of the sound data on generation.

This fixes some overflows/underflows which resulted in crackling.
scummvm · Aug 9, 2011 · b95bbb2 · b95bbb2
1 parent 7456027
commit b95bbb2
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/audio/softsynth/cms.cpp b/audio/softsynth/cms.cpp
@@ -244,8 +244,8 @@ void CMSEmulator::update(int chip, int16 *buffer, int length) {
 			}
 		}
 		/* write sound data to the buffer */
-		buffer[j*2] += output_l / 6;
-		buffer[j*2+1] += output_r / 6;
+		buffer[j*2+0] = CLIP<int>(buffer[j*2+0] + output_l / 6, -32768, 32767);
+		buffer[j*2+1] = CLIP<int>(buffer[j*2+1] + output_r / 6, -32768, 32767);
 	}
 }