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_INT16MAT2D_EM_H 18 #define bts_INT16MAT2D_EM_H 19 20 /* ---- includes ----------------------------------------------------------- */ 21 22 #include "b_BasicEm/Basic.h" 23 #include "b_BasicEm/Phase.h" 24 #include "b_TensorEm/Int16Vec2D.h" 25 26 /* ---- related objects --------------------------------------------------- */ 27 28 /* ---- typedefs ----------------------------------------------------------- */ 29 30 /* ---- constants ---------------------------------------------------------- */ 31 32 /* ---- object definition -------------------------------------------------- */ 33 34 /** 2d matrix */ 35 struct bts_Int16Mat2D 36 { 37 38 /* ---- private data --------------------------------------------------- */ 39 40 /* ---- public data ---------------------------------------------------- */ 41 42 /** xx component */ 43 int16 xxE; 44 45 /** xy component */ 46 int16 xyE; 47 48 /** yx component */ 49 int16 yxE; 50 51 /** yy component */ 52 int16 yyE; 53 54 /** fixed point position */ 55 int16 bbpE; 56 }; 57 58 /* ---- associated objects ------------------------------------------------- */ 59 60 /* ---- external functions ------------------------------------------------- */ 61 62 /* ---- \ghd{ constructor/destructor } ------------------------------------- */ 63 64 /* ---- \ghd{ operators } -------------------------------------------------- */ 65 66 /* ---- \ghd{ query functions } -------------------------------------------- */ 67 68 /* ---- \ghd{ modify functions } ------------------------------------------- */ 69 70 /* ---- \ghd{ memory I/O } ------------------------------------------------- */ 71 72 /* ---- \ghd{ exec functions } --------------------------------------------- */ 73 74 /** creates identity matrix */ 75 struct bts_Int16Mat2D bts_Int16Mat2D_createIdentity( void ); 76 77 /** creates rotation matrix */ 78 struct bts_Int16Mat2D bts_Int16Mat2D_createRotation( phase16 angleA ); 79 80 /** creates rigid matrix (scale & rotation) */ 81 struct bts_Int16Mat2D bts_Int16Mat2D_createRigid( phase16 angleA, struct flt16 scaleA ); 82 83 /** scales matrix by a factor */ 84 void bts_Int16Mat2D_scale( struct bts_Int16Mat2D* ptrA, struct flt16 scaleA ); 85 86 /** multiplies matrix with vecA; returns resulting vector */ 87 struct bts_Int16Vec2D bts_Int16Mat2D_map( const struct bts_Int16Mat2D* matPtrA, 88 const struct bts_Int16Vec2D* vecPtrA ); 89 90 /** multiplies matrix with matA; returns resulting matrix */ 91 struct bts_Int16Mat2D bts_Int16Mat2D_mul( const struct bts_Int16Mat2D* mat1PtrA, 92 const struct bts_Int16Mat2D* mat2PtrA ); 93 94 #endif /* bts_INT16MAT2D_EM_H */ 95 96