/* * Copyright (C) 2008 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. */ /* ---- includes ----------------------------------------------------------- */ #include "b_TensorEm/Functions.h" #include "b_BasicEm/Math.h" /* ---- related objects --------------------------------------------------- */ /* ---- typedefs ----------------------------------------------------------- */ /* ---- constants ---------------------------------------------------------- */ /* ------------------------------------------------------------------------- */ /* ========================================================================= */ /* */ /* ---- \ghd{ external functions } ----------------------------------------- */ /* */ /* ========================================================================= */ /* ------------------------------------------------------------------------- */ uint32 bts_absIntLog2( int32 vA ) { return bbs_intLog2( bbs_abs( vA ) ); } /* ------------------------------------------------------------------------- */ uint32 bts_maxAbsIntLog2Of2( int32 v1A, int32 v2A ) { uint32 maxL = bbs_max( ( uint32 )bbs_abs( v1A ), ( uint32 )bbs_abs( v2A ) ); return bbs_intLog2( maxL ); } /* ------------------------------------------------------------------------- */ uint32 bts_maxAbsIntLog2Of3( int32 v1A, int32 v2A, int32 v3A ) { uint32 maxL = bbs_abs( v1A ); maxL = bbs_max( maxL, ( uint32 )bbs_abs( v2A ) ); maxL = bbs_max( maxL, ( uint32 )bbs_abs( v3A ) ); return bbs_intLog2( maxL ); } /* ------------------------------------------------------------------------- */ uint32 bts_maxAbsIntLog2Of4( int32 v1A, int32 v2A, int32 v3A, int32 v4A ) { uint32 maxL = bbs_abs( v1A ); maxL = bbs_max( maxL, ( uint32 )bbs_abs( v2A ) ); maxL = bbs_max( maxL, ( uint32 )bbs_abs( v3A ) ); maxL = bbs_max( maxL, ( uint32 )bbs_abs( v4A ) ); return bbs_intLog2( maxL ); } /* ------------------------------------------------------------------------- */