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author | William Joye <wjoye@cfa.harvard.edu> | 2019-05-10 18:53:10 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2019-05-10 18:53:10 (GMT) |
commit | a213dadabce2b2e02eca8376765fa425f01792f5 (patch) | |
tree | 9a21116c977447511fed092e80415ae664a92945 /ast/lutmap.h | |
parent | 9ef925b353e71b6b8abd23b59ca1adef488e3a3b (diff) | |
download | blt-a213dadabce2b2e02eca8376765fa425f01792f5.zip blt-a213dadabce2b2e02eca8376765fa425f01792f5.tar.gz blt-a213dadabce2b2e02eca8376765fa425f01792f5.tar.bz2 |
upgrade ast 8.7.1
Diffstat (limited to 'ast/lutmap.h')
-rw-r--r-- | ast/lutmap.h | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/ast/lutmap.h b/ast/lutmap.h new file mode 100644 index 0000000..68fa194 --- /dev/null +++ b/ast/lutmap.h @@ -0,0 +1,335 @@ +#if !defined( LUTMAP_INCLUDED ) /* Include this file only once */ +#define LUTMAP_INCLUDED +/* +*+ +* Name: +* lutmap.h + +* Type: +* C include file. + +* Purpose: +* Define the interface to the LutMap class. + +* Invocation: +* #include "lutmap.h" + +* Description: +* This include file defines the interface to the LutMap class and +* provides the type definitions, function prototypes and macros, +* etc. needed to use this class. +* +* The LutMap class implements Mappings which transform +* 1-dimensional coordinates using linear interpolation in a lookup +* table. + +* Inheritance: +* The LutMap class inherits from the Mapping class. + +* Attributes Over-Ridden: +* None. + +* New Attributes Defined: +* None. + +* Methods Over-Ridden: +* Public: +* None. +* +* Protected: +* astMapMerge +* Simplify a sequence of Mappings. +* astTransform +* Apply a LutMap to transform a set of points. + +* New Methods Defined: +* Public: +* None. +* +* Protected: +* None. + +* Other Class Functions: +* Public: +* astIsALutMap +* Test class membership. +* astLutMap +* Create a LutMap. +* +* Protected: +* astCheckLutMap +* Validate class membership. +* astInitLutMap +* Initialise a LutMap. +* astInitLutMapVtab +* Initialise the virtual function table for the LutMap class. +* astLoadLutMap +* Load a LutMap. + +* Macros: +* None. + +* Type Definitions: +* Public: +* AstLutMap +* LutMap object type. +* +* Protected: +* AstLutMapVtab +* LutMap virtual function table type. + +* Feature Test Macros: +* astCLASS +* If the astCLASS macro is undefined, only public symbols are +* made available, otherwise protected symbols (for use in other +* class implementations) are defined. This macro also affects +* the reporting of error context information, which is only +* provided for external calls to the AST library. + +* Copyright: +* Copyright (C) 1997-2006 Council for the Central Laboratory of the +* Research Councils + +* Licence: +* This program is free software: you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public +* License as published by the Free Software Foundation, either +* version 3 of the License, or (at your option) any later +* version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General +* License along with this program. If not, see +* <http://www.gnu.org/licenses/>. + +* Authors: +* RFWS: R.F. Warren-Smith (Starlink) + +* History: +* 8-JUL-1997 (RFWS): +* Original version. +* 8-JAN-2003 (DSB): +* Added protected astInitLutMapVtab method. +*- +*/ + +/* Include files. */ +/* ============== */ +/* Interface definitions. */ +/* ---------------------- */ +#include "mapping.h" /* Coordinate mappings (parent class) */ + +#if defined(astCLASS) /* Protected */ +#include "pointset.h" /* Sets of points/coordinates */ +#include "channel.h" /* I/O channels */ +#endif + +/* C header files. */ +/* --------------- */ +#if defined(astCLASS) /* Protected */ +#include <stddef.h> +#endif + +/* Macros */ +/* ====== */ + +/* Define a dummy __attribute__ macro for use on non-GNU compilers. */ +#ifndef __GNUC__ +# define __attribute__(x) /*NOTHING*/ +#endif + +/* Type Definitions. */ +/* ================= */ +/* LutMap structure. */ +/* ------------------ */ +/* This structure contains all information that is unique to each + object in the class (e.g. its instance variables). */ +typedef struct AstLutMap { + +/* Attributes inherited from the parent class. */ + AstMapping mapping; /* Parent class structure */ + +/* Attributes specific to objects in this class. */ + double *lut; /* Pointer to lookup table */ + double *luti; /* Reduced lookup table for inverse trans. */ + double inc; /* Input increment between table entries */ + double last_fwd_in; /* Last input value (forward transfm.) */ + double last_fwd_out; /* Last output value (forward transfm.) */ + double last_inv_in; /* Last input value (inverse transfm.) */ + double last_inv_out; /* Last output value (inverse transfm.) */ + double start; /* Input value for first table entry */ + int *flagsi; /* Flags indicating adjacent bad values */ + int *indexi; /* Translates reduced to original indices */ + double lutepsilon; /* Relative error of table values */ + int lutinterp; /* Interpolation method */ + int nlut; /* Number of table entries */ + int nluti; /* Reduced number of table entries */ +} AstLutMap; + +/* Virtual function table. */ +/* ----------------------- */ +/* This table contains all information that is the same for all + objects in the class (e.g. pointers to its virtual functions). */ +#if defined(astCLASS) /* Protected */ +typedef struct AstLutMapVtab { + +/* Properties (e.g. methods) inherited from the parent class. */ + AstMappingVtab mapping_vtab; /* Parent class virtual function table */ + +/* A Unique identifier to determine class membership. */ + AstClassIdentifier id; + +/* Properties (e.g. methods) specific to this class. */ + int (*GetLutInterp)( AstLutMap *, int * ); + int (* TestLutInterp)( AstLutMap *, int * ); + void (* ClearLutInterp)( AstLutMap *, int * ); + void (* SetLutInterp)( AstLutMap *, int, int * ); + double (*GetLutEpsilon)( AstLutMap *, int * ); + int (* TestLutEpsilon)( AstLutMap *, int * ); + void (* ClearLutEpsilon)( AstLutMap *, int * ); + void (* SetLutEpsilon)( AstLutMap *, double, int * ); + double *(* GetLutMapInfo)( AstLutMap *, double *, double *, int *, int * ); + +} AstLutMapVtab; + +#if defined(THREAD_SAFE) + +/* Define a structure holding all data items that are global within this + class. */ +typedef struct AstLutMapGlobals { + AstLutMapVtab Class_Vtab; + int Class_Init; + char GetAttrib_Buff[ 101 ]; +} AstLutMapGlobals; + +#endif + +#endif + +/* Function prototypes. */ +/* ==================== */ +/* Prototypes for standard class functions. */ +/* ---------------------------------------- */ +astPROTO_CHECK(LutMap) /* Check class membership */ +astPROTO_ISA(LutMap) /* Test class membership */ + +/* Constructor. */ +#if defined(astCLASS) /* Protected. */ +AstLutMap *astLutMap_( int, const double [], double, double, const char *, int *, ...); +#else +AstLutMap *astLutMapId_( int, const double [], double, double, const char *, ... )__attribute__((format(printf,5,6))); +#endif + +#if defined(astCLASS) /* Protected */ + +/* Initialiser. */ +AstLutMap *astInitLutMap_( void *, size_t, int, AstLutMapVtab *, const char *, int, const double *, double, double, int * ); + +/* Vtab initialiser. */ +void astInitLutMapVtab_( AstLutMapVtab *, const char *, int * ); + +/* Loader. */ +AstLutMap *astLoadLutMap_( void *, size_t, AstLutMapVtab *, const char *, AstChannel *, int * ); + +/* Thread-safe initialiser for all global data used by this module. */ +#if defined(THREAD_SAFE) +void astInitLutMapGlobals_( AstLutMapGlobals * ); +#endif + +#endif + +/* Prototypes for member functions. */ +/* -------------------------------- */ +# if defined(astCLASS) /* Protected */ + int astGetLutInterp_( AstLutMap *, int * ); + int astTestLutInterp_( AstLutMap *, int * ); + void astClearLutInterp_( AstLutMap *, int * ); + void astSetLutInterp_( AstLutMap *, int, int * ); + + double astGetLutEpsilon_( AstLutMap *, int * ); + int astTestLutEpsilon_( AstLutMap *, int * ); + void astClearLutEpsilon_( AstLutMap *, int * ); + void astSetLutEpsilon_( AstLutMap *, double, int * ); + + double *astGetLutMapInfo_( AstLutMap *, double *, double *, int *, int * ); +#endif + +/* Function interfaces. */ +/* ==================== */ +/* These macros are wrap-ups for the functions defined by this class + to make them easier to invoke (e.g. to avoid type mis-matches when + passing pointers to objects from derived classes). */ + +/* Interfaces to standard class functions. */ +/* --------------------------------------- */ +/* Some of these functions provide validation, so we cannot use them + to validate their own arguments. We must use a cast when passing + object pointers (so that they can accept objects from derived + classes). */ + +/* Check class membership. */ +#define astCheckLutMap(this) astINVOKE_CHECK(LutMap,this,0) +#define astVerifyLutMap(this) astINVOKE_CHECK(LutMap,this,1) + +/* Test class membership. */ +#define astIsALutMap(this) astINVOKE_ISA(LutMap,this) + +/* Constructor. */ +#if defined(astCLASS) /* Protected. */ +#define astLutMap astINVOKE(F,astLutMap_) +#else +#define astLutMap astINVOKE(F,astLutMapId_) +#endif + +#if defined(astCLASS) /* Protected */ + +/* Initialiser. */ +#define \ +astInitLutMap(mem,size,init,vtab,name,nlut,lut,start,inc) \ +astINVOKE(O,astInitLutMap_(mem,size,init,vtab,name,nlut,lut,start,inc,STATUS_PTR)) + +/* Vtab Initialiser. */ +#define astInitLutMapVtab(vtab,name) astINVOKE(V,astInitLutMapVtab_(vtab,name,STATUS_PTR)) +/* Loader. */ +#define astLoadLutMap(mem,size,vtab,name,channel) \ +astINVOKE(O,astLoadLutMap_(mem,size,vtab,name,astCheckChannel(channel),STATUS_PTR)) +#endif + +/* Interfaces to public member functions. */ +/* -------------------------------------- */ +/* Here we make use of astCheckLutMap to validate LutMap pointers + before use. This provides a contextual error report if a pointer + to the wrong sort of Object is supplied. */ +#if defined(astCLASS) /* Protected */ + +#define astClearLutInterp(this) \ + astINVOKE(V,astClearLutInterp_(astCheckLutMap(this),STATUS_PTR)) +#define astGetLutInterp(this) \ + astINVOKE(V,astGetLutInterp_(astCheckLutMap(this),STATUS_PTR)) +#define astSetLutInterp(this,value) \ + astINVOKE(V,astSetLutInterp_(astCheckLutMap(this),value,STATUS_PTR)) +#define astTestLutInterp(this) \ + astINVOKE(V,astTestLutInterp_(astCheckLutMap(this),STATUS_PTR)) +#define astGetLutMapInfo(this,start,inc,nlut) \ + astINVOKE(V,astGetLutMapInfo_(astCheckLutMap(this),start,inc,nlut,STATUS_PTR)) +#define astClearLutEpsilon(this) \ + astINVOKE(V,astClearLutEpsilon_(astCheckLutMap(this),STATUS_PTR)) +#define astGetLutEpsilon(this) \ + astINVOKE(V,astGetLutEpsilon_(astCheckLutMap(this),STATUS_PTR)) +#define astSetLutEpsilon(this,value) \ + astINVOKE(V,astSetLutEpsilon_(astCheckLutMap(this),value,STATUS_PTR)) +#define astTestLutEpsilon(this) \ + astINVOKE(V,astTestLutEpsilon_(astCheckLutMap(this),STATUS_PTR)) + +#endif + +#endif + + + + + |