Line data    Source code

       1             : /***********************************************************************
       2             : Copyright (c) 2006-2011, Skype Limited. All rights reserved.
       3             : Redistribution and use in source and binary forms, with or without
       4             : modification, are permitted provided that the following conditions
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       9             : notice, this list of conditions and the following disclaimer in the
      10             : documentation and/or other materials provided with the distribution.
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      14             : permission.
      15             : THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
      16             : AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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      22             : INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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      24             : ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
      25             : POSSIBILITY OF SUCH DAMAGE.
      26             : ***********************************************************************/
      27             : 
      28             : #ifdef HAVE_CONFIG_H
      29             : #include "config.h"
      30             : #endif
      31             : 
      32             : #include "SigProc_FLP.h"
      33             : 
      34             : /* copy and multiply a vector by a constant */
      35           0 : void silk_scale_copy_vector_FLP(
      36             :     silk_float          *data_out,
      37             :     const silk_float    *data_in,
      38             :     silk_float          gain,
      39             :     opus_int            dataSize
      40             : )
      41             : {
      42             :     opus_int  i, dataSize4;
      43             : 
      44             :     /* 4x unrolled loop */
      45           0 :     dataSize4 = dataSize & 0xFFFC;
      46           0 :     for( i = 0; i < dataSize4; i += 4 ) {
      47           0 :         data_out[ i + 0 ] = gain * data_in[ i + 0 ];
      48           0 :         data_out[ i + 1 ] = gain * data_in[ i + 1 ];
      49           0 :         data_out[ i + 2 ] = gain * data_in[ i + 2 ];
      50           0 :         data_out[ i + 3 ] = gain * data_in[ i + 3 ];
      51             :     }
      52             : 
      53             :     /* any remaining elements */
      54           0 :     for( ; i < dataSize; i++ ) {
      55           0 :         data_out[ i ] = gain * data_in[ i ];
      56             :     }
      57           0 : }