/*
 * 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.
 */

/**********************************************************************************
   INCLUDE FILES
***********************************************************************************/

#include "VectorArithmetic.h"

/**********************************************************************************
   FUNCTION Shift_Sat_v32xv32
***********************************************************************************/
void Shift_Sat_Float(const LVM_INT16 val, const LVM_FLOAT* src, LVM_FLOAT* dst, LVM_INT16 n) {
    LVM_FLOAT temp;
    LVM_INT32 ii, ij;
    LVM_INT16 RShift;

    if (val > 0) {
        for (ii = n; ii != 0; ii--) {
            temp = (LVM_FLOAT)*src;
            src++;
            for (ij = 0; ij < val; ij++) {
                temp = temp * 2;
            }

            if (temp > 1.0) temp = 1.0;
            if (temp < -1.0) temp = -1.0;

            *dst = (LVM_FLOAT)temp;
            dst++;
        }
    } else if (val < 0) {
        RShift = (LVM_INT16)(-val);

        for (ii = n; ii != 0; ii--) {
            temp = (LVM_FLOAT)*src;
            src++;
            for (ij = 0; ij < RShift; ij++) {
                temp = temp / 2;
            }
            *dst = (LVM_FLOAT)temp;
            dst++;
        }
    } else {
        if (src != dst) {
            Copy_Float(src, dst, n);
        }
    }
    return;
}
/**********************************************************************************/