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_FLT16VEC3D_EM_H 18 #define bts_FLT16VEC3D_EM_H 19 20 /* ---- includes ----------------------------------------------------------- */ 21 22 #include "b_BasicEm/Context.h" 23 #include "b_BasicEm/Basic.h" 24 #include "b_BasicEm/Phase.h" 25 26 /* ---- related objects --------------------------------------------------- */ 27 28 /* ---- typedefs ----------------------------------------------------------- */ 29 30 /* ---- constants ---------------------------------------------------------- */ 31 32 /* ---- object definition -------------------------------------------------- */ 33 34 /** 3d vector with floating point */ 35 struct bts_Flt16Vec3D 36 { 37 38 /* ---- private data --------------------------------------------------- */ 39 40 /* ---- public data ---------------------------------------------------- */ 41 42 /** x component */ 43 int16 xE; 44 45 /** y component */ 46 int16 yE; 47 48 /** z component */ 49 int16 zE; 50 51 /** point position */ 52 int16 bbpE; 53 }; 54 55 /* ---- associated objects ------------------------------------------------- */ 56 57 /* ---- external functions ------------------------------------------------- */ 58 59 /* ---- \ghd{ constructor/destructor } ------------------------------------- */ 60 61 /** initializes vector */ 62 void bts_Flt16Vec3D_init( struct bts_Flt16Vec3D* ptrA ); 63 64 /** destroys vector */ 65 void bts_Flt16Vec3D_exit( struct bts_Flt16Vec3D* ptrA ); 66 67 /* ---- \ghd{ operators } -------------------------------------------------- */ 68 69 /** equal operator */ 70 flag bts_Flt16Vec3D_equal( const struct bts_Flt16Vec3D* ptrA, const struct bts_Flt16Vec3D* 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_Flt16Vec3D_memSize( struct bbs_Context* cpA, 80 const struct bts_Flt16Vec3D* ptrA ); 81 82 /** writes object to memory; returns number of bytes written */ 83 uint32 bts_Flt16Vec3D_memWrite( struct bbs_Context* cpA, 84 const struct bts_Flt16Vec3D* ptrA, 85 uint16* memPtrA ); 86 87 /** reads object from memory; returns number of bytes read */ 88 uint32 bts_Flt16Vec3D_memRead( struct bbs_Context* cpA, 89 struct bts_Flt16Vec3D* ptrA, 90 const uint16* memPtrA ); 91 92 /* ---- \ghd{ exec functions } --------------------------------------------- */ 93 94 /** creates vector from 16 bit values */ 95 struct bts_Flt16Vec3D bts_Flt16Vec3D_create16( int16 xA, int16 yA, int16 zA, int16 bbpA ); 96 97 /** creates vector from 32 bit values (automatic adjustment of bbp value) */ 98 struct bts_Flt16Vec3D bts_Flt16Vec3D_create32( int32 xA, int32 yA, int32 zA, int32 bbpA ); 99 100 /** returns square norm of vector; return bbp is ptrA->bbpE * 2 */ 101 uint32 bts_Flt16Vec3D_norm2( const struct bts_Flt16Vec3D* ptrA ); 102 103 /** returns norm of vector; return bbp is ptrA->bbpE*/ 104 uint16 bts_Flt16Vec3D_norm( const struct bts_Flt16Vec3D* ptrA ); 105 106 /** normalizes vector; bbpA defines number of bits behind the point */ 107 void bts_Flt16Vec3D_normalize( struct bts_Flt16Vec3D* ptrA ); 108 109 /** returns normalized vector; bbpA defines number of bits behind the point */ 110 struct bts_Flt16Vec3D bts_Flt16Vec3D_normalized( const struct bts_Flt16Vec3D* ptrA ); 111 112 /** adds two vectors; returns resulting vector */ 113 struct bts_Flt16Vec3D bts_Flt16Vec3D_add( struct bts_Flt16Vec3D vec1A, struct bts_Flt16Vec3D vec2A ); 114 115 /** subtracts vec1A - vec2A; returns resulting vector */ 116 struct bts_Flt16Vec3D bts_Flt16Vec3D_sub( struct bts_Flt16Vec3D vec1A, struct bts_Flt16Vec3D vec2A ); 117 118 /** multiplies vecor with scalar; returns resulting vector */ 119 struct bts_Flt16Vec3D bts_Flt16Vec3D_mul( struct bts_Flt16Vec3D vecA, int16 factorA, int32 bbpFactorA ); 120 121 #endif /* bts_FLT16VEC3D_EM_H */ 122 123