Home | History | Annotate | Download | only in b_TensorEm 
      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef bts_FLT16ALT2D_EM_H
     18 #define bts_FLT16ALT2D_EM_H
     19 
     20 /* ---- includes ----------------------------------------------------------- */
     21 
     22 #include "b_BasicEm/Context.h"
     23 #include "b_BasicEm/Basic.h"
     24 #include "b_TensorEm/Flt16Mat2D.h"
     25 #include "b_TensorEm/Flt16Vec2D.h"
     26 
     27 /* ---- related objects  --------------------------------------------------- */
     28 
     29 /* ---- typedefs ----------------------------------------------------------- */
     30 
     31 /* ---- constants ---------------------------------------------------------- */
     32 
     33 /* ---- object definition -------------------------------------------------- */
     34 
     35 /** 2d affine linear trafo */
     36 struct bts_Flt16Alt2D
     37 {
     38 
     39 	/* ---- private data --------------------------------------------------- */
     40 
     41 	/* ---- public data ---------------------------------------------------- */
     42 
     43 	/** matrix */
     44 	struct bts_Flt16Mat2D matE;
     45 
     46 	/** vector */
     47 	struct bts_Flt16Vec2D vecE;
     48 };
     49 
     50 /* ---- associated objects ------------------------------------------------- */
     51 
     52 /* ---- external functions ------------------------------------------------- */
     53 
     54 /* ---- \ghd{ constructor/destructor } ------------------------------------- */
     55 
     56 /** initializes alt */
     57 void bts_Flt16Alt2D_init( struct bts_Flt16Alt2D* ptrA );
     58 
     59 /** destroys alt */
     60 void bts_Flt16Alt2D_exit( struct bts_Flt16Alt2D* ptrA );
     61 
     62 /* ---- \ghd{ operators } -------------------------------------------------- */
     63 
     64 /** copy operator */
     65 void bts_Flt16Alt2D_copy( struct bts_Flt16Alt2D* ptrA,
     66 						  const struct bts_Flt16Alt2D* srcPtrA );
     67 
     68 /** equal operator */
     69 flag bts_Flt16Alt2D_equal( const struct bts_Flt16Alt2D* ptrA,
     70 						   const struct bts_Flt16Alt2D* srcPtrA );
     71 
     72 /* ---- \ghd{ query functions } -------------------------------------------- */
     73 
     74 /* ---- \ghd{ modify functions } ------------------------------------------- */
     75 
     76 /* ---- \ghd{ memory I/O } ------------------------------------------------- */
     77 
     78 /** size object needs when written to memory */
     79 uint32 bts_Flt16Alt2D_memSize( struct bbs_Context* cpA,
     80 							   const struct bts_Flt16Alt2D* ptrA );
     81 
     82 /** writes object to memory; returns number of bytes written */
     83 uint32 bts_Flt16Alt2D_memWrite( struct bbs_Context* cpA,
     84 							    const struct bts_Flt16Alt2D* ptrA,
     85 								uint16* memPtrA );
     86 
     87 /** reads object from memory; returns number of bytes read */
     88 uint32 bts_Flt16Alt2D_memRead( struct bbs_Context* cpA,
     89 							   struct bts_Flt16Alt2D* ptrA,
     90 							   const uint16* memPtrA );
     91 
     92 /* ---- \ghd{ exec functions } --------------------------------------------- */
     93 
     94 /** inverts alt */
     95 void bts_Flt16Alt2D_invert( struct bts_Flt16Alt2D* ptrA );
     96 
     97 /** returns inverted alt */
     98 struct bts_Flt16Alt2D bts_Flt16Alt2D_inverted( const struct bts_Flt16Alt2D* ptrA );
     99 
    100 /** creates identity alt */
    101 struct bts_Flt16Alt2D bts_Flt16Alt2D_createIdentity( void );
    102 
    103 /** creates rotation alt */
    104 struct bts_Flt16Alt2D bts_Flt16Alt2D_createRotation( phase16 angleA,
    105 													 const struct bts_Flt16Vec2D* centerPtrA );
    106 
    107 /** creates scale alt */
    108 struct bts_Flt16Alt2D bts_Flt16Alt2D_createScale( int32 scaleA,
    109 												  int32 scaleBbpA,
    110 												  const struct bts_Flt16Vec2D* centerPtrA );
    111 
    112 /** creates rigid alt (scale & rotation) */
    113 struct bts_Flt16Alt2D bts_Flt16Alt2D_createRigid( phase16 angleA,
    114 												  int32 scaleA,
    115 												  int32 scaleBbpA,
    116 												  const struct bts_Flt16Vec2D* centerPtrA );
    117 
    118 /** creates rigid alt (scale & rotation) that mapps vecIn1 and vecIn2 to vecOut1 and vecOut2*/
    119 struct bts_Flt16Alt2D bts_Flt16Alt2D_createRigidMap( struct bts_Flt16Vec2D vecIn1A,
    120 												     struct bts_Flt16Vec2D vecIn2A,
    121 												     struct bts_Flt16Vec2D vecOut1A,
    122 												     struct bts_Flt16Vec2D vecOut2A );
    123 
    124 /** creates alt from 16 bit values */
    125 struct bts_Flt16Alt2D bts_Flt16Alt2D_create16( int16 xxA,
    126 											   int16 xyA,
    127 											   int16 yxA,
    128 											   int16 yyA,
    129 											   int16 matBbpA,
    130 											   int16 xA,
    131 											   int16 yA,
    132 											   int16 vecBbpA );
    133 
    134 /** creates alt from 32 bit values (automatic adjustment of bbp value) */
    135 struct bts_Flt16Alt2D bts_Flt16Alt2D_create32( int32 xxA,
    136 											   int32 xyA,
    137 											   int32 yxA,
    138 											   int32 yyA,
    139 											   int32 matBbpA,
    140 											   int32 xA,
    141 											   int32 yA,
    142 											   int32 vecBbpA );
    143 
    144 /** Multiplies matrix with float vecA; returns resulting vector.
    145  *  bbp can get changed.
    146  */
    147 struct bts_Flt16Vec2D bts_Flt16Alt2D_mapFlt( const struct bts_Flt16Alt2D* matPtrA,
    148 								             const struct bts_Flt16Vec2D* vecPtrA );
    149 
    150 /** multiplies alt with altA returns resulting alt */
    151 struct bts_Flt16Alt2D bts_Flt16Alt2D_mul( const struct bts_Flt16Alt2D* alt1PtrA,
    152 								          const struct bts_Flt16Alt2D* alt2PtrA );
    153 
    154 /** multiplies alt with matA; returns pointer to resulting alt */
    155 struct bts_Flt16Alt2D* bts_Flt16Alt2D_mulTo( struct bts_Flt16Alt2D* alt1PtrA,
    156 				                             const struct bts_Flt16Alt2D* alt2PtrA );
    157 
    158 #endif /* bts_FLT16ALT2D_EM_H */
    159 
    160