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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:45 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:45 -0800 |
commit | d5193d9394c5e58176d7bcdf50ef017f8a3b9e1e (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /libs/surfaceflinger/clz.cpp | |
parent | 43aa2b1cbf7a03e248e10f4d0fec0463257cd52d (diff) | |
download | frameworks_native-d5193d9394c5e58176d7bcdf50ef017f8a3b9e1e.zip frameworks_native-d5193d9394c5e58176d7bcdf50ef017f8a3b9e1e.tar.gz frameworks_native-d5193d9394c5e58176d7bcdf50ef017f8a3b9e1e.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'libs/surfaceflinger/clz.cpp')
-rw-r--r-- | libs/surfaceflinger/clz.cpp | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/libs/surfaceflinger/clz.cpp b/libs/surfaceflinger/clz.cpp deleted file mode 100644 index 2456b86..0000000 --- a/libs/surfaceflinger/clz.cpp +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (C) 2007 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 "clz.h" - -namespace android { - -int clz_impl(int32_t x) -{ -#if defined(__arm__) && !defined(__thumb__) - return __builtin_clz(x); -#else - if (!x) return 32; - int e = 31; - if (x&0xFFFF0000) { e -=16; x >>=16; } - if (x&0x0000FF00) { e -= 8; x >>= 8; } - if (x&0x000000F0) { e -= 4; x >>= 4; } - if (x&0x0000000C) { e -= 2; x >>= 2; } - if (x&0x00000002) { e -= 1; } - return e; -#endif -} - -}; // namespace android |