| The Android Open Source Project | 30957f5 | 2008-10-21 07:00:00 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | /* ---- includes ----------------------------------------------------------- */ |
| 18 | |
| 19 | #include "b_TensorEm/Functions.h" |
| 20 | #include "b_BasicEm/Math.h" |
| 21 | |
| 22 | /* ---- related objects --------------------------------------------------- */ |
| 23 | |
| 24 | /* ---- typedefs ----------------------------------------------------------- */ |
| 25 | |
| 26 | /* ---- constants ---------------------------------------------------------- */ |
| 27 | |
| 28 | /* ------------------------------------------------------------------------- */ |
| 29 | |
| 30 | /* ========================================================================= */ |
| 31 | /* */ |
| 32 | /* ---- \ghd{ external functions } ----------------------------------------- */ |
| 33 | /* */ |
| 34 | /* ========================================================================= */ |
| 35 | |
| 36 | /* ------------------------------------------------------------------------- */ |
| 37 | |
| 38 | uint32 bts_absIntLog2( int32 vA ) |
| 39 | { |
| 40 | return bbs_intLog2( bbs_abs( vA ) ); |
| 41 | } |
| 42 | |
| 43 | /* ------------------------------------------------------------------------- */ |
| 44 | |
| 45 | uint32 bts_maxAbsIntLog2Of2( int32 v1A, int32 v2A ) |
| 46 | { |
| 47 | uint32 maxL = bbs_max( ( uint32 )bbs_abs( v1A ), ( uint32 )bbs_abs( v2A ) ); |
| 48 | return bbs_intLog2( maxL ); |
| 49 | } |
| 50 | |
| 51 | /* ------------------------------------------------------------------------- */ |
| 52 | |
| 53 | uint32 bts_maxAbsIntLog2Of3( int32 v1A, int32 v2A, int32 v3A ) |
| 54 | { |
| 55 | uint32 maxL = bbs_abs( v1A ); |
| 56 | maxL = bbs_max( maxL, ( uint32 )bbs_abs( v2A ) ); |
| 57 | maxL = bbs_max( maxL, ( uint32 )bbs_abs( v3A ) ); |
| 58 | return bbs_intLog2( maxL ); |
| 59 | } |
| 60 | |
| 61 | /* ------------------------------------------------------------------------- */ |
| 62 | |
| 63 | uint32 bts_maxAbsIntLog2Of4( int32 v1A, int32 v2A, int32 v3A, int32 v4A ) |
| 64 | { |
| 65 | uint32 maxL = bbs_abs( v1A ); |
| 66 | maxL = bbs_max( maxL, ( uint32 )bbs_abs( v2A ) ); |
| 67 | maxL = bbs_max( maxL, ( uint32 )bbs_abs( v3A ) ); |
| 68 | maxL = bbs_max( maxL, ( uint32 )bbs_abs( v4A ) ); |
| 69 | return bbs_intLog2( maxL ); |
| 70 | } |
| 71 | |
| 72 | /* ------------------------------------------------------------------------- */ |