/*
* 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_BasicEm/Complex.h"
#include "b_BasicEm/APh.h"
#include "b_BasicEm/Functions.h"
#include "b_BasicEm/Math.h"
/* ------------------------------------------------------------------------- */
/* ========================================================================= */
/* */
/* ---- \ghd{ auxiliary functions } ---------------------------------------- */
/* */
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/* */
/* ---- \ghd{ constructor / destructor } ----------------------------------- */
/* */
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/* */
/* ---- \ghd{ operators } -------------------------------------------------- */
/* */
/* ========================================================================= */
/* ------------------------------------------------------------------------- */
flag bbs_Complex_equal( struct bbs_Complex compl1A, struct bbs_Complex compl2A )
{
return ( compl1A.realE == compl2A.realE ) && ( compl1A.imagE == compl2A.imagE );
}
/* ------------------------------------------------------------------------- */
/* ========================================================================= */
/* */
/* ---- \ghd{ query functions } -------------------------------------------- */
/* */
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/* */
/* ---- \ghd{ modify functions } ------------------------------------------- */
/* */
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/* */
/* ---- \ghd{ I/O } -------------------------------------------------------- */
/* */
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/* ------------------------------------------------------------------------- */
uint32 bbs_Complex_memSize( struct bbs_Context* cpA,
struct bbs_Complex complA )
{
return bbs_SIZEOF16( complA.realE ) + bbs_SIZEOF16( complA.imagE );
}
/* ------------------------------------------------------------------------- */
uint32 bbs_Complex_memWrite( struct bbs_Context* cpA,
const struct bbs_Complex* ptrA,
uint16* memPtrA )
{
memPtrA += bbs_memWrite16( &ptrA->realE, memPtrA );
memPtrA += bbs_memWrite16( &ptrA->imagE, memPtrA );
return bbs_Complex_memSize( cpA, *ptrA );
}
/* ------------------------------------------------------------------------- */
uint32 bbs_Complex_memRead( struct bbs_Context* cpA,
struct bbs_Complex* ptrA,
const uint16* memPtrA )
{
if( bbs_Context_error( cpA ) ) return 0;
memPtrA += bbs_memRead16( &ptrA->realE, memPtrA );
memPtrA += bbs_memRead16( &ptrA->imagE, memPtrA );
return bbs_Complex_memSize( cpA, *ptrA );
}
/* ------------------------------------------------------------------------- */
/* ========================================================================= */
/* */
/* ---- \ghd{ exec functions } --------------------------------------------- */
/* */
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struct bbs_Complex bbs_Complex_conj( struct bbs_Complex complA )
{
struct bbs_Complex resultL;
resultL.imagE = - complA.imagE;
resultL.realE = complA.realE;
return resultL;
}
/* ------------------------------------------------------------------------- */
uint32 bbs_Complex_abs2( struct bbs_Complex complA )
{
return ( int32 ) complA.realE * complA.realE +
( int32 ) complA.imagE * complA.imagE;
}
/* ------------------------------------------------------------------------- */
uint16 bbs_Complex_abs( struct bbs_Complex complA )
{
return bbs_sqrt32( bbs_Complex_abs2( complA ) );
}
/* ------------------------------------------------------------------------- */
phase16 bbs_Complex_phase( struct bbs_Complex complA )
{
int32 realL, imagL;
realL = complA.realE;
imagL = complA.imagE;
return bbs_phase16( realL, imagL );
}
/* ------------------------------------------------------------------------- */
void bbs_Complex_importAPh( struct bbs_Complex* dstPtrA, const struct bbs_APh* srcPtrA )
{
dstPtrA->realE = ( ( bbs_cos32( srcPtrA->phaseE ) >> 8 ) * srcPtrA->absE ) >> 16;
dstPtrA->imagE = ( ( bbs_sin32( srcPtrA->phaseE ) >> 8 ) * srcPtrA->absE ) >> 16;
}
/* ------------------------------------------------------------------------- */
/* ========================================================================= */