diff options
Diffstat (limited to 'media/libeffects/lvm/lib/Common/src/Abs_32.c')
-rwxr-xr-x | media/libeffects/lvm/lib/Common/src/Abs_32.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Common/src/Abs_32.c b/media/libeffects/lvm/lib/Common/src/Abs_32.c new file mode 100755 index 0000000..635315d --- /dev/null +++ b/media/libeffects/lvm/lib/Common/src/Abs_32.c @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2004-2010 NXP Software + * Copyright (C) 2010 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. + */ + +/************************************************************************/ +/* */ +/* $Author: beq07716 $*/ +/* $Revision: 1000 $*/ +/* $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $*/ +/* */ +/************************************************************************/ + +/*######################################################################################*/ +/* Include files */ +/*######################################################################################*/ + +#include "ScalarArithmetic.h" + +/**************************************************************************************** + * Name : Abs_32() + * Input : Signed 32-bit integer + * Output : + * Returns : Absolute value + * Description : Absolute value with maximum negative value corner case + * Remarks : + ****************************************************************************************/ + +LVM_INT32 Abs_32(LVM_INT32 input) +{ + if(input < 0) + { + if (input == (LVM_INT32)(0x80000000U)) + { + /* The corner case, so set to the maximum positive value */ + input=(LVM_INT32) 0x7fffffff; + } + else + { + /* Negative input, so invert */ + input = (LVM_INT32)(-input); + } + } + return input; +} + |