diff options
Diffstat (limited to 'media/libnbaio/roundup.c')
-rw-r--r-- | media/libnbaio/roundup.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/media/libnbaio/roundup.c b/media/libnbaio/roundup.c deleted file mode 100644 index 1d552d1ace..0000000000 --- a/media/libnbaio/roundup.c +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright (C) 2012 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <media/nbaio/roundup.h> - -unsigned roundup(unsigned v) -{ - // __builtin_clz is undefined for zero input - if (v == 0) { - v = 1; - } - int lz = __builtin_clz((int) v); - unsigned rounded = ((unsigned) 0x80000000) >> lz; - // 0x800000001 and higher are actually rounded _down_ to prevent overflow - if (v > rounded && lz > 0) { - rounded <<= 1; - } - return rounded; -} |