add classes for all the math functions
This commit is contained in:
John Cupitt
parent
fa49ebf66f
commit
020073606f
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@ -24,6 +24,7 @@ libarithmetic_la_SOURCES = \
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min.c \
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subtract.c \
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math.c \
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v7math.c \
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arithmetic.c \
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arithmetic.h \
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binary.c \
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@ -507,6 +507,7 @@ vips_arithmetic_operation_init( void )
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extern GType vips_avg_get_type( void );
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extern GType vips_min_get_type( void );
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extern GType vips_linear_get_type( void );
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extern GType vips_math_get_type( void );
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vips_add_get_type();
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vips_invert_get_type();
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@ -514,5 +515,6 @@ vips_arithmetic_operation_init( void )
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vips_avg_get_type();
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vips_min_get_type();
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vips_linear_get_type();
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vips_math_get_type();
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}
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@ -1,4 +1,4 @@
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/* math.c --- call various -lm functions (trig, log etc.) on imags
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/* VipsMath --- call various -lm functions (trig, log etc.) on images
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*
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* Copyright: 1990, N. Dessipris, based on im_powtra()
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* Author: Nicos Dessipris
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@ -21,23 +21,25 @@
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* - use im__math()
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* 19/9/09
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* - im_sintra() adapted to make math.c
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* 4/11/11
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* - redone as a class
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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Copyright (C) 1991-2005 The National Gallery
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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@ -49,6 +51,10 @@
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*/
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/*
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#define DEBUG
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif /*HAVE_CONFIG_H*/
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@ -59,262 +65,173 @@
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#include <math.h>
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#include <vips/vips.h>
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#include <vips/internal.h>
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/* What we do for each band element. Non-complex only.
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*/
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#define FUN_LOOP( IN, OUT, FUN ) { \
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IN *p = (IN *) in; \
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OUT *q = (OUT *) out; \
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\
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for( x = 0; x < ne; x++ ) \
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q[x] = FUN( (double) p[x] ); \
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}
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#include "arithmetic.h"
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#include "unary.h"
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/* Operate on a buffer of PELs
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/**
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* VipsMath:
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* @in: input #VipsImage
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* @out: output #VipsImage
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* @operation: operation to perform
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*
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* Perform various functions in -lm, the maths library, on images.
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*
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* Angles are expressed in degrees. The output type is float unless the
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* input is double, in which case the output is double.
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* Non-complex images only.
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*
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* See also: #VipsAdd.
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*/
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#define FUN_BUFFER( FUN ) \
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static void \
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FUN ## _buffer( PEL *in, PEL *out, int width, IMAGE *im ) \
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{ \
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const int ne = width * im->Bands; \
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\
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int x; \
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\
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/* Switch for all input types. \
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*/ \
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switch( im->BandFmt ) { \
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case IM_BANDFMT_UCHAR: FUN_LOOP( unsigned char, float, FUN ); break; \
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case IM_BANDFMT_CHAR: FUN_LOOP( signed char, float, FUN ); break; \
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case IM_BANDFMT_USHORT: FUN_LOOP( unsigned short, float, FUN ); break; \
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case IM_BANDFMT_SHORT: FUN_LOOP( signed short, float, FUN ); break; \
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case IM_BANDFMT_UINT: FUN_LOOP( unsigned int, float, FUN ); break; \
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case IM_BANDFMT_INT: FUN_LOOP( signed int, float, FUN ); break; \
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case IM_BANDFMT_FLOAT: FUN_LOOP( float, float, FUN ); break; \
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case IM_BANDFMT_DOUBLE: FUN_LOOP( double, double, FUN ); break; \
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\
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default: \
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g_assert( 0 ); \
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} \
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}
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/* Do a math (eg. sin(), acos(), log()) type-function. No complex, everything
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* goes to float except double.
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*/
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int
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im__math( const char *name, IMAGE *in, IMAGE *out, im_wrapone_fn gen )
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typedef struct _VipsMath {
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VipsUnary parent_instance;
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VipsMathOperation operation;
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} VipsMath;
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typedef VipsUnaryClass VipsMathClass;
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G_DEFINE_TYPE( VipsMath, vips_math, VIPS_TYPE_UNARY );
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static int
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vips_math_build( VipsObject *object )
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{
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if( im_piocheck( in, out ) ||
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im_check_uncoded( name, in ) ||
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im_check_noncomplex( name, in ) )
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VipsUnary *unary = (VipsUnary *) object;
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if( unary->in &&
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vips_check_noncomplex( "VipsMath", unary->in ) )
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return( -1 );
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if( im_cp_desc( out, in ) )
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return( -1 );
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if( vips_bandfmt_isint( in->BandFmt ) )
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out->BandFmt = IM_BANDFMT_FLOAT;
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if( im_wrapone( in, out, gen, in, NULL ) )
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if( VIPS_OBJECT_CLASS( vips_math_parent_class )->build( object ) )
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return( -1 );
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return( 0 );
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}
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/* Sin in degrees.
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#define LOOP( IN, OUT, OP ) { \
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IN *p = (IN *) in[0]; \
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OUT *q = (OUT *) out; \
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\
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for( x = 0; x < sz; x++ ) \
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q[x] = OP( p[x] ); \
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}
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#define SWITCH( OP ) \
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switch( vips_image_get_format( im ) ) { \
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case VIPS_FORMAT_UCHAR: \
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LOOP( unsigned char, float, OP ); break; \
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case VIPS_FORMAT_CHAR: \
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LOOP( signed char, float, OP ); break; \
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case VIPS_FORMAT_USHORT: \
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LOOP( unsigned short, float, OP ); break; \
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case VIPS_FORMAT_SHORT: \
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LOOP( signed short, float, OP ); break; \
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case VIPS_FORMAT_UINT: \
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LOOP( unsigned int, float, OP ); break; \
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case VIPS_FORMAT_INT: \
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LOOP( signed int, float, OP ); break; \
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case VIPS_FORMAT_FLOAT: \
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LOOP( float, float, OP ); break; \
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case VIPS_FORMAT_DOUBLE: \
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LOOP( double, double, OP ); break;\
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\
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default: \
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g_assert( 0 ); \
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}
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/* sin/cos/tan in degrees.
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*/
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#define DSIN( X ) (sin( IM_RAD( X ) ))
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FUN_BUFFER( DSIN )
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/**
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* im_sintra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>sin(3)</function> (sine). Angles are
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* expressed in degrees. The output type is float, unless the input is
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* double, in which case the output is double. Non-complex images only.
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*
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* See also: im_asintra(), im_costra(), im_tantra().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_sintra( IMAGE *in, IMAGE *out )
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{
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return( im__math( "im_sintra", in, out, (im_wrapone_fn) DSIN_buffer ) );
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}
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/* Asin in degrees.
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*/
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#define ADSIN( X ) (IM_DEG( asin( X ) ))
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FUN_BUFFER( ADSIN )
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/**
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* im_asintra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>asin(3)</function> (arc, or inverse sine).
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* Angles are
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* expressed in degrees. The output type is float, unless the input is
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* double, in which case the output is double. Non-complex images only.
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*
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* See also: im_asintra(), im_costra(), im_tantra().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_asintra( IMAGE *in, IMAGE *out )
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{
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return( im__math( "im_asintra", in, out,
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(im_wrapone_fn) ADSIN_buffer ) );
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}
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/* Cos in degrees.
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*/
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#define DCOS( X ) (cos( IM_RAD( X ) ))
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FUN_BUFFER( DCOS )
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/**
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* im_costra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>cos(3)</function> (cosine). Angles are
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* expressed in degrees. The output type is float, unless the input is
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* double, in which case the output is double. Non-complex images only.
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*
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* See also: im_acostra(), im_sintra(), im_tantra().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_costra( IMAGE *in, IMAGE *out )
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{
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return( im__math( "im_costra", in, out, (im_wrapone_fn) DCOS_buffer ) );
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}
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/* Acos in degrees.
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*/
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#define ADCOS( X ) (IM_DEG( acos( X ) ))
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FUN_BUFFER( ADCOS )
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/**
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* im_acostra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>acos(3)</function> (arc or inverse cosine).
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* Angles are expressed in
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* degrees. The output type is float, unless the input is double, in which
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* case the output is double. Non-complex images only.
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*
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* See also: im_costra(), im_asintra(), im_atantra().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_acostra( IMAGE *in, IMAGE *out )
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{
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return( im__math( "im_acostra", in, out,
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(im_wrapone_fn) ADCOS_buffer ) );
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}
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/* Tan in degrees.
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*/
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#define DTAN( X ) (tan( IM_RAD( X ) ))
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FUN_BUFFER( DTAN )
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/**
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* im_tantra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>tan(3)</function> (tangent). Angles are
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* expressed in degrees. The output type is float, unless the input is
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* double, in which case the output is double. Non-complex images only.
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*
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* See also: im_atantra(), im_sintra(), im_tantra().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_tantra( IMAGE *in, IMAGE *out )
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{
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return( im__math( "im_tantra", in, out, (im_wrapone_fn) DTAN_buffer ) );
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}
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/* Atan in degrees.
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*/
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#define ADSIN( X ) (IM_DEG( asin( X ) ))
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#define ADCOS( X ) (IM_DEG( acos( X ) ))
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#define ADTAN( X ) (IM_DEG( atan( X ) ))
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FUN_BUFFER( ADTAN )
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/**
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* im_atantra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>atan(3)</function> (arc or inverse tangent).
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* Angles are expressed in
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* degrees. The output type is float, unless the input is double, in which
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* case the output is double. Non-complex images only.
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*
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* See also: im_tantra(), im_asintra(), im_atantra().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_atantra( IMAGE *in, IMAGE *out )
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static void
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vips_math_buffer( VipsArithmetic *arithmetic, PEL *out, PEL **in, int width )
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{
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return( im__math( "im_atantra", in, out,
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(im_wrapone_fn) ADTAN_buffer ) );
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VipsMath *math = (VipsMath *) arithmetic;
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VipsImage *im = arithmetic->ready[0];
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const int sz = width * vips_image_get_bands( im );
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int x;
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switch( math->operation ) {
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case VIPS_MATH_OPERATION_SIN: SWITCH( DSIN ); break;
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case VIPS_MATH_OPERATION_COS: SWITCH( DCOS ); break;
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case VIPS_MATH_OPERATION_TAN: SWITCH( DTAN ); break;
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case VIPS_MATH_OPERATION_ASIN: SWITCH( ADSIN ); break;
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case VIPS_MATH_OPERATION_ACOS: SWITCH( ADCOS ); break;
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case VIPS_MATH_OPERATION_ATAN: SWITCH( ADTAN ); break;
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case VIPS_MATH_OPERATION_LOG10: SWITCH( log10 ); break;
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case VIPS_MATH_OPERATION_LN: SWITCH( log ); break;
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default:
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g_assert( 0 );
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}
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}
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FUN_BUFFER( log10 )
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/**
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* im_log10tra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>log10(3)</function> (base 10 logarithm).
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* The output type is float, unless the input is
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* double, in which case the output is double. Non-complex images only.
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*
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* See also: im_exp10tra(), im_logntra(), im_sintra().
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*
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* Returns: 0 on success, -1 on error
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/* Save a bit of typing.
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*/
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int
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im_log10tra( IMAGE *in, IMAGE *out )
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#define UC VIPS_FORMAT_UCHAR
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#define C VIPS_FORMAT_CHAR
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#define US VIPS_FORMAT_USHORT
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#define S VIPS_FORMAT_SHORT
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#define UI VIPS_FORMAT_UINT
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#define I VIPS_FORMAT_INT
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#define F VIPS_FORMAT_FLOAT
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#define X VIPS_FORMAT_COMPLEX
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#define D VIPS_FORMAT_DOUBLE
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#define DX VIPS_FORMAT_DPCOMPLEX
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static const VipsBandFormat vips_bandfmt_math[10] = {
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/* UC C US S UI I F X D DX */
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F, F, F, F, F, F, F, X, D, DX
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};
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static void
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vips_math_class_init( VipsMathClass *class )
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{
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return( im__math( "im_log10tra", in, out,
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(im_wrapone_fn) log10_buffer ) );
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GObjectClass *gobject_class = G_OBJECT_CLASS( class );
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VipsObjectClass *object_class = (VipsObjectClass *) class;
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VipsArithmeticClass *aclass = VIPS_ARITHMETIC_CLASS( class );
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gobject_class->set_property = vips_object_set_property;
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gobject_class->get_property = vips_object_get_property;
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object_class->nickname = "math";
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object_class->description = _( "perform a math function on an image" );
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object_class->build = vips_math_build;
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vips_arithmetic_set_format_table( aclass, vips_bandfmt_math );
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aclass->process_line = vips_math_buffer;
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VIPS_ARG_ENUM( class, "operation", 200,
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_( "Operation" ),
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_( "operation to perform" ),
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VIPS_ARGUMENT_REQUIRED_INPUT,
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G_STRUCT_OFFSET( VipsMath, operation ),
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VIPS_TYPE_MATH_OPERATION, VIPS_MATH_OPERATION_SIN );
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}
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FUN_BUFFER( log )
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/**
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* im_logtra
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* For each pixel, call <function>log(3)</function> (natural logarithm).
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* The output type is float, unless the input is
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* double, in which case the output is double. Non-complex images only.
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*
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* See also: im_exp10tra(), im_logntra(), im_sintra().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_logtra( IMAGE *in, IMAGE *out )
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static void
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vips_math_init( VipsMath *math )
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{
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return( im__math( "im_logtra", in, out, (im_wrapone_fn) log_buffer ) );
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}
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int
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vips_math( VipsImage *in, VipsImage **out, VipsMathOperation operation, ... )
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{
|
||||
va_list ap;
|
||||
int result;
|
||||
|
||||
va_start( ap, operation );
|
||||
result = vips_call_split( "math", ap, in, out, operation );
|
||||
va_end( ap );
|
||||
|
||||
return( result );
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,322 @@
|
|||
/* v7math.c --- call various -lm functions (trig, log etc.) on imags
|
||||
*
|
||||
* vips7 compat stuff
|
||||
*
|
||||
* Copyright: 1990, N. Dessipris, based on im_powtra()
|
||||
* Author: Nicos Dessipris
|
||||
* Written on: 02/05/1990
|
||||
* Modified on:
|
||||
* 5/5/93 JC
|
||||
* - adapted from im_lintra to work with partial images
|
||||
* - incorrect implementation of complex logs removed
|
||||
* 1/7/93 JC
|
||||
* - adapted for partial v2
|
||||
* - ANSIfied
|
||||
* 24/2/95 JC
|
||||
* - im_logtra() adapted to make im_sintra()
|
||||
* - adapted for im_wrapone()
|
||||
* 26/1/96 JC
|
||||
* - im_asintra() added
|
||||
* 30/8/09
|
||||
* - gtkdoc
|
||||
* - tiny cleanups
|
||||
* - use im__math()
|
||||
* 19/9/09
|
||||
* - im_sintra() adapted to make math.c
|
||||
*/
|
||||
|
||||
/*
|
||||
|
||||
This file is part of VIPS.
|
||||
|
||||
VIPS 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 2 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 Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
*/
|
||||
|
||||
/*
|
||||
|
||||
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
|
||||
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include <config.h>
|
||||
#endif /*HAVE_CONFIG_H*/
|
||||
#include <vips/intl.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <math.h>
|
||||
|
||||
#include <vips/vips.h>
|
||||
#include <vips/internal.h>
|
||||
|
||||
/* What we do for each band element. Non-complex only.
|
||||
*/
|
||||
#define FUN_LOOP( IN, OUT, FUN ) { \
|
||||
IN *p = (IN *) in; \
|
||||
OUT *q = (OUT *) out; \
|
||||
\
|
||||
for( x = 0; x < ne; x++ ) \
|
||||
q[x] = FUN( (double) p[x] ); \
|
||||
}
|
||||
|
||||
/* Operate on a buffer of PELs
|
||||
*/
|
||||
#define FUN_BUFFER( FUN ) \
|
||||
static void \
|
||||
FUN ## _buffer( PEL *in, PEL *out, int width, IMAGE *im ) \
|
||||
{ \
|
||||
const int ne = width * im->Bands; \
|
||||
\
|
||||
int x; \
|
||||
\
|
||||
/* Switch for all input types. \
|
||||
*/ \
|
||||
switch( im->BandFmt ) { \
|
||||
case IM_BANDFMT_UCHAR: FUN_LOOP( unsigned char, float, FUN ); break; \
|
||||
case IM_BANDFMT_CHAR: FUN_LOOP( signed char, float, FUN ); break; \
|
||||
case IM_BANDFMT_USHORT: FUN_LOOP( unsigned short, float, FUN ); break; \
|
||||
case IM_BANDFMT_SHORT: FUN_LOOP( signed short, float, FUN ); break; \
|
||||
case IM_BANDFMT_UINT: FUN_LOOP( unsigned int, float, FUN ); break; \
|
||||
case IM_BANDFMT_INT: FUN_LOOP( signed int, float, FUN ); break; \
|
||||
case IM_BANDFMT_FLOAT: FUN_LOOP( float, float, FUN ); break; \
|
||||
case IM_BANDFMT_DOUBLE: FUN_LOOP( double, double, FUN ); break; \
|
||||
\
|
||||
default: \
|
||||
g_assert( 0 ); \
|
||||
} \
|
||||
}
|
||||
|
||||
/* Do a math (eg. sin(), acos(), log()) type-function. No complex, everything
|
||||
* goes to float except double.
|
||||
*/
|
||||
int
|
||||
im__math( const char *name, IMAGE *in, IMAGE *out, im_wrapone_fn gen )
|
||||
{
|
||||
if( im_piocheck( in, out ) ||
|
||||
im_check_uncoded( name, in ) ||
|
||||
im_check_noncomplex( name, in ) )
|
||||
return( -1 );
|
||||
|
||||
if( im_cp_desc( out, in ) )
|
||||
return( -1 );
|
||||
if( vips_bandfmt_isint( in->BandFmt ) )
|
||||
out->BandFmt = IM_BANDFMT_FLOAT;
|
||||
|
||||
if( im_wrapone( in, out, gen, in, NULL ) )
|
||||
return( -1 );
|
||||
|
||||
return( 0 );
|
||||
}
|
||||
|
||||
/* Sin in degrees.
|
||||
*/
|
||||
#define DSIN( X ) (sin( IM_RAD( X ) ))
|
||||
|
||||
FUN_BUFFER( DSIN )
|
||||
|
||||
/**
|
||||
* im_sintra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>sin(3)</function> (sine). Angles are
|
||||
* expressed in degrees. The output type is float, unless the input is
|
||||
* double, in which case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_asintra(), im_costra(), im_tantra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_sintra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_sintra", in, out, (im_wrapone_fn) DSIN_buffer ) );
|
||||
}
|
||||
|
||||
/* Asin in degrees.
|
||||
*/
|
||||
#define ADSIN( X ) (IM_DEG( asin( X ) ))
|
||||
|
||||
FUN_BUFFER( ADSIN )
|
||||
|
||||
/**
|
||||
* im_asintra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>asin(3)</function> (arc, or inverse sine).
|
||||
* Angles are
|
||||
* expressed in degrees. The output type is float, unless the input is
|
||||
* double, in which case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_asintra(), im_costra(), im_tantra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_asintra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_asintra", in, out,
|
||||
(im_wrapone_fn) ADSIN_buffer ) );
|
||||
}
|
||||
|
||||
/* Cos in degrees.
|
||||
*/
|
||||
#define DCOS( X ) (cos( IM_RAD( X ) ))
|
||||
|
||||
FUN_BUFFER( DCOS )
|
||||
|
||||
/**
|
||||
* im_costra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>cos(3)</function> (cosine). Angles are
|
||||
* expressed in degrees. The output type is float, unless the input is
|
||||
* double, in which case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_acostra(), im_sintra(), im_tantra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_costra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_costra", in, out, (im_wrapone_fn) DCOS_buffer ) );
|
||||
}
|
||||
|
||||
/* Acos in degrees.
|
||||
*/
|
||||
#define ADCOS( X ) (IM_DEG( acos( X ) ))
|
||||
|
||||
FUN_BUFFER( ADCOS )
|
||||
|
||||
/**
|
||||
* im_acostra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>acos(3)</function> (arc or inverse cosine).
|
||||
* Angles are expressed in
|
||||
* degrees. The output type is float, unless the input is double, in which
|
||||
* case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_costra(), im_asintra(), im_atantra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_acostra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_acostra", in, out,
|
||||
(im_wrapone_fn) ADCOS_buffer ) );
|
||||
}
|
||||
|
||||
/* Tan in degrees.
|
||||
*/
|
||||
#define DTAN( X ) (tan( IM_RAD( X ) ))
|
||||
|
||||
FUN_BUFFER( DTAN )
|
||||
|
||||
/**
|
||||
* im_tantra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>tan(3)</function> (tangent). Angles are
|
||||
* expressed in degrees. The output type is float, unless the input is
|
||||
* double, in which case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_atantra(), im_sintra(), im_tantra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_tantra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_tantra", in, out, (im_wrapone_fn) DTAN_buffer ) );
|
||||
}
|
||||
|
||||
/* Atan in degrees.
|
||||
*/
|
||||
#define ADTAN( X ) (IM_DEG( atan( X ) ))
|
||||
|
||||
FUN_BUFFER( ADTAN )
|
||||
|
||||
/**
|
||||
* im_atantra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>atan(3)</function> (arc or inverse tangent).
|
||||
* Angles are expressed in
|
||||
* degrees. The output type is float, unless the input is double, in which
|
||||
* case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_tantra(), im_asintra(), im_atantra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_atantra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_atantra", in, out,
|
||||
(im_wrapone_fn) ADTAN_buffer ) );
|
||||
}
|
||||
|
||||
FUN_BUFFER( log10 )
|
||||
|
||||
/**
|
||||
* im_log10tra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>log10(3)</function> (base 10 logarithm).
|
||||
* The output type is float, unless the input is
|
||||
* double, in which case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_exp10tra(), im_logntra(), im_sintra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_log10tra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_log10tra", in, out,
|
||||
(im_wrapone_fn) log10_buffer ) );
|
||||
}
|
||||
|
||||
FUN_BUFFER( log )
|
||||
|
||||
/**
|
||||
* im_logtra
|
||||
* @in: input #IMAGE
|
||||
* @out: output #IMAGE
|
||||
*
|
||||
* For each pixel, call <function>log(3)</function> (natural logarithm).
|
||||
* The output type is float, unless the input is
|
||||
* double, in which case the output is double. Non-complex images only.
|
||||
*
|
||||
* See also: im_exp10tra(), im_logntra(), im_sintra().
|
||||
*
|
||||
* Returns: 0 on success, -1 on error
|
||||
*/
|
||||
int
|
||||
im_logtra( IMAGE *in, IMAGE *out )
|
||||
{
|
||||
return( im__math( "im_logtra", in, out, (im_wrapone_fn) log_buffer ) );
|
||||
}
|
||||
|
|
@ -57,6 +57,7 @@ EXTRA_DIST = version.h.in internal.h enumtemplate
|
|||
# well
|
||||
vips_scan_headers = \
|
||||
${top_srcdir}/libvips/include/vips/memory.h \
|
||||
${top_srcdir}/libvips/include/vips/arithmetic.h \
|
||||
${top_srcdir}/libvips/include/vips/conversion.h \
|
||||
${top_srcdir}/libvips/include/vips/util.h \
|
||||
${top_srcdir}/libvips/include/vips/buf.h \
|
||||
|
|
|
|||
|
|
@ -37,6 +37,31 @@
|
|||
extern "C" {
|
||||
#endif /*__cplusplus*/
|
||||
|
||||
/**
|
||||
* VipsMathOperation:
|
||||
* @VIPS_MATH_OPERATION_SIN: sin(), angles in degrees
|
||||
* @VIPS_MATH_OPERATION_COS: cos(), angles in degrees
|
||||
* @VIPS_MATH_OPERATION_TAN: tan(), angles in degrees
|
||||
* @VIPS_MATH_OPERATION_ASIN: asin(), angles in degrees
|
||||
* @VIPS_MATH_OPERATION_ACOS: acos(), angles in degrees
|
||||
* @VIPS_MATH_OPERATION_ATAN: atan(), angles in degrees
|
||||
* @VIPS_MATH_OPERATION_LOG10: log base 10
|
||||
* @VIPS_MATH_OPERATION_LN: log base e
|
||||
*
|
||||
* See also: vips_math().
|
||||
*/
|
||||
typedef enum {
|
||||
VIPS_MATH_OPERATION_SIN,
|
||||
VIPS_MATH_OPERATION_COS,
|
||||
VIPS_MATH_OPERATION_TAN,
|
||||
VIPS_MATH_OPERATION_ASIN,
|
||||
VIPS_MATH_OPERATION_ACOS,
|
||||
VIPS_MATH_OPERATION_ATAN,
|
||||
VIPS_MATH_OPERATION_LOG10,
|
||||
VIPS_MATH_OPERATION_LN,
|
||||
VIPS_MATH_OPERATION_LAST
|
||||
} VipsMathOperation;
|
||||
|
||||
int vips_add( VipsImage *left, VipsImage *right, VipsImage **out, ... )
|
||||
__attribute__((sentinel));
|
||||
int vips_subtract( VipsImage *in1, VipsImage *in2, VipsImage **out, ... )
|
||||
|
|
@ -52,6 +77,9 @@ int vips_linear( VipsImage *in, VipsImage **out,
|
|||
__attribute__((sentinel));
|
||||
int vips_linear1( VipsImage *in, VipsImage **out, double a, double b, ... )
|
||||
__attribute__((sentinel));
|
||||
int vips_math( VipsImage *in, VipsImage **out,
|
||||
VipsMathOperation operation, ... )
|
||||
__attribute__((sentinel));
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -6,6 +6,9 @@
|
|||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
/* enumerations from "../../../libvips/include/vips/arithmetic.h" */
|
||||
GType vips_math_operation_get_type (void) G_GNUC_CONST;
|
||||
#define VIPS_TYPE_MATH_OPERATION (vips_math_operation_get_type())
|
||||
/* enumerations from "../../../libvips/include/vips/conversion.h" */
|
||||
GType vips_extend_get_type (void) G_GNUC_CONST;
|
||||
#define VIPS_TYPE_EXTEND (vips_extend_get_type())
|
||||
|
|
|
|||
|
|
@ -42,6 +42,7 @@ INCLUDES = -I${top_srcdir}/libvips/include @VIPS_CFLAGS@ @VIPS_INCLUDES@
|
|||
vips_scan_headers = \
|
||||
${top_srcdir}/libvips/include/vips/memory.h \
|
||||
${top_srcdir}/libvips/include/vips/conversion.h \
|
||||
${top_srcdir}/libvips/include/vips/arithmetic.h \
|
||||
${top_srcdir}/libvips/include/vips/util.h \
|
||||
${top_srcdir}/libvips/include/vips/buf.h \
|
||||
${top_srcdir}/libvips/include/vips/image.h \
|
||||
|
|
|
|||
|
|
@ -83,6 +83,31 @@ vips_angle_get_type( void )
|
|||
|
||||
return( etype );
|
||||
}
|
||||
/* enumerations from "../../libvips/include/vips/arithmetic.h" */
|
||||
GType
|
||||
vips_math_operation_get_type( void )
|
||||
{
|
||||
static GType etype = 0;
|
||||
|
||||
if( etype == 0 ) {
|
||||
static const GEnumValue values[] = {
|
||||
{VIPS_MATH_OPERATION_SIN, "VIPS_MATH_OPERATION_SIN", "sin"},
|
||||
{VIPS_MATH_OPERATION_COS, "VIPS_MATH_OPERATION_COS", "cos"},
|
||||
{VIPS_MATH_OPERATION_TAN, "VIPS_MATH_OPERATION_TAN", "tan"},
|
||||
{VIPS_MATH_OPERATION_ASIN, "VIPS_MATH_OPERATION_ASIN", "asin"},
|
||||
{VIPS_MATH_OPERATION_ACOS, "VIPS_MATH_OPERATION_ACOS", "acos"},
|
||||
{VIPS_MATH_OPERATION_ATAN, "VIPS_MATH_OPERATION_ATAN", "atan"},
|
||||
{VIPS_MATH_OPERATION_LOG10, "VIPS_MATH_OPERATION_LOG10", "log10"},
|
||||
{VIPS_MATH_OPERATION_LN, "VIPS_MATH_OPERATION_LN", "ln"},
|
||||
{VIPS_MATH_OPERATION_LAST, "VIPS_MATH_OPERATION_LAST", "last"},
|
||||
{0, NULL, NULL}
|
||||
};
|
||||
|
||||
etype = g_enum_register_static( "VipsMathOperation", values );
|
||||
}
|
||||
|
||||
return( etype );
|
||||
}
|
||||
/* enumerations from "../../libvips/include/vips/util.h" */
|
||||
GType
|
||||
vips_token_get_type( void )
|
||||
|
|
|
|||
Loading…
Reference in New Issue