commit 925727b94541353fe2d47abc2923ddbf4c4ff135
author Alon Zakai <alonzakai@gmail.com> Tue Sep 13 00:03:41 2016 -0700
committer Alon Zakai <alonzakai@gmail.com> Tue Sep 13 00:03:41 2016 -0700
tree 6ccdb84c1ff254f027e10f3cb6f2edf689ad6b8a
parent 95edd250bb030fe8daf872f2717fa0dc53b96ad9

optimize a getValue

src/audio/emscripten/SDL_emscriptenaudio.c

diff --git a/src/audio/emscripten/SDL_emscriptenaudio.c b/src/audio/emscripten/SDL_emscriptenaudio.c
index b48943c..2c97ffa 100644
--- a/src/audio/emscripten/SDL_emscriptenaudio.c
+++ b/src/audio/emscripten/SDL_emscriptenaudio.c
@@ -127,7 +127,7 @@
                 }
 
                 for (var j = 0; j < $1; ++j) {
-                    channelData[j] = getValue($0 + (j*numChannels + c)*4, 'float');
+                    channelData[j] = HEAPF32[$0 + ((j*numChannels + c) << 2) >> 2];
                 }
             }
         }, buf, byte_len / bytes / this->spec.channels);