add unary and invert
add a base class for unary operators, try it out with VipsInvert
This commit is contained in:
John Cupitt
parent
12a13d3e39
commit
b4531ff24b
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@ -3,7 +3,7 @@
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- im_subtract(), im_avg(), im_min(), im_minpos(), im_copy(), im_embed(),
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im_flophor(), im_flipver(), im_insert(), im_insert_noexpand(), im_lrjoin(),
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im_tbjoin(), im_extract_area(), im_extract_bands(), im_extract_areabands(),
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im_replicate(), im_clip2fmt(), im_gbandjoin(), im_bandjoin()
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im_replicate(), im_clip2fmt(), im_gbandjoin(), im_bandjoin(), im_invert()
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redone as classes
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- added argument priorites to help control arg ordering
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- generate has a 'stop' param to signal successful early termination
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@ -27,6 +27,7 @@
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- added vips_region_paint_pel()
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- added VipsArea as a public struct
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- added array members and arguments
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- Unary
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12/10/11 started 7.26.6
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- NOCACHE was not being set correctly on OS X causing performance
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7
TODO
7
TODO
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@ -1,8 +1,11 @@
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- invert is useless. make it work for all types at least
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- lintra_vec next
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so we need a unary.c .. easy copy frombinary.c now that most of binary has
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moved into arithmetic
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@ -8,7 +8,6 @@ libarithmetic_la_SOURCES = \
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im_deviate.c \
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im_divide.c \
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im_recomb.c \
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im_invert.c \
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im_linreg.c \
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im_lintra.c \
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im_maxpos_avg.c \
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@ -30,7 +29,10 @@ libarithmetic_la_SOURCES = \
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arithmetic.h \
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binary.c \
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binary.h \
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unary.c \
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unary.h \
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add.c \
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invert.c \
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power.c \
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round.c
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@ -389,14 +389,14 @@ vips_arithmetic_class_init( VipsArithmeticClass *class )
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/* Just for testing.
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*/
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VIPS_ARG_BOOL( class, "booltest", 1,
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VIPS_ARG_BOOL( class, "booltest", 101,
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_( "Bool test" ),
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_( "Test optional boolean argument" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsArithmetic, booltest ),
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FALSE );
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VIPS_ARG_IMAGE( class, "imtest", 2,
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VIPS_ARG_IMAGE( class, "imtest", 102,
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_( "Image test" ),
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_( "Test optional image argument" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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@ -495,11 +495,13 @@ void
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vips_arithmetic_operation_init( void )
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{
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extern GType vips_add_get_type( void );
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extern GType vips_invert_get_type( void );
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extern GType vips_subtract_get_type( 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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vips_add_get_type();
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vips_invert_get_type();
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vips_subtract_get_type();
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vips_avg_get_type();
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vips_min_get_type();
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@ -4,6 +4,8 @@
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* - argh, forgot to make a private array for the inputs
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* 16/5/11
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* - added sizealike
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* 30/10/11
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* - moe most functionality into arithmetic.c
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*/
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/*
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@ -1,148 +0,0 @@
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/* im_invert.c
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*
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* Copyright: 1990, N. Dessipris.
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*
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* Author: Nicos Dessipris
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* Written on: 12/02/1990
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* Modified on :
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* 7/7/93 JC
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* - memory leaks fixed
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* - adapted for partial v2
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* - ANSIfied
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* 22/2/95 JC
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* - tidied up again
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* 2/9/09
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* - gtk-doc comment
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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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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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You should have received a copy of the GNU Lesser 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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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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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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#include <vips/intl.h>
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#include <stdio.h>
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#include <vips/vips.h>
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/* Invert a REGION. We are given the REGION we should write to, the REGION we
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* should use for input, and the IMAGE we are processing. On entry to
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* invert_gen(), or points to the memory we should write to and ir is blank.
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*/
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static int
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invert_gen( REGION *or, void *seq, void *a, void *b )
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{
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REGION *ir = (REGION *) seq;
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/* Left, right, top and bottom for the output region.
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*/
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int le = or->valid.left;
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int to = or->valid.top;
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int bo = IM_RECT_BOTTOM( &or->valid );
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int x, y;
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/* Ask for the section of the input image we need to produce this
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* section of the output image.
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*/
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if( im_prepare( ir, &or->valid ) )
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return( -1 );
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/* Loop over output.
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*/
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for( y = to; y < bo; y++ ) {
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/* Point p and q at the start of the line of pels we must
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* process this loop.
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*/
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PEL *p = (PEL *) IM_REGION_ADDR( ir, le, y );
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PEL *q = (PEL *) IM_REGION_ADDR( or, le, y );
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/* Loop along the line, processing pels.
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* IM_REGION_N_ELEMENTS(region) gives
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* the number of band elements across a region. By looping to
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* IM_REGION_N_ELEMENTS() rather than ir->valid.width, we work
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* for any number of bands.
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*/
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for( x = 0; x < IM_REGION_N_ELEMENTS( or ); x++ )
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q[x] = 255 - p[x];
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}
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return( 0 );
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}
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/**
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* im_invert:
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* @in: input #IMAGE
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* @out: output #IMAGE
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*
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* this operation calculates (255 - @in).
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* The operation works on uchar images only. The input can have any no of
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* channels.
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*
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* This is not a generally useful program -- it is included as an example of
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* a very simple new-style IO function.
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* See im_exptra() for an example of a VIPS function which can process
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* any input image type.
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*
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* See also: im_exptra(), im_lintra().
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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_invert( IMAGE *in, IMAGE *out )
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{
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/* Check args.
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*/
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if( im_check_uncoded( "im_invert", in ) ||
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im_check_format( "im_invert", in, IM_BANDFMT_UCHAR ) ||
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im_piocheck( in, out ) )
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return( -1 );
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/* Prepare the output header.
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*/
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if( im_cp_desc( out, in ) )
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return( -1 );
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/* Set demand hints. Like most one-to-one operations, we work best
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* with long, thin strips.
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*/
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if( im_demand_hint( out, IM_THINSTRIP, in, NULL ) )
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return( -1 );
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/* Generate into out. im_start_one() and im_stop_one() are simple
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* convenience functions provided by VIPS which do the necessary
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* region creation and destruction for one-image-in
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* style functions. See im_add(), im_start_many() and im_stop_many()
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* for convenience functions for multiple inputs.
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*/
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if( im_generate( out,
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im_start_one, invert_gen, im_stop_one, in, NULL ) )
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return( -1 );
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return( 0 );
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}
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@ -0,0 +1,152 @@
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/* photographic negative ... just an example, really
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*
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* Copyright: 1990, N. Dessipris.
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*
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* Author: Nicos Dessipris
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* Written on: 12/02/1990
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* Modified on :
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* 7/7/93 JC
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* - memory leaks fixed
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* - adapted for partial v2
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* - ANSIfied
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* 22/2/95 JC
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* - tidied up again
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* 2/9/09
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* - gtk-doc comment
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* 23/8/11
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* - rewrite as a class
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*/
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/*
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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 General Public License for more details.
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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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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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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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#include <vips/intl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <vips/vips.h>
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#include "arithmetic.h"
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#include "unary.h"
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/**
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* VipsInvert:
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* @in: input #VipsImage
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* @out: output #VipsImage
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*
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* this operation calculates (255 - @in).
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* The operation works on uchar images only. The input can have any
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* number of channels.
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*
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* This is not a generally useful operation -- it is included as an example of
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* a very simple operation.
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* See im_exptra() for an example of a VIPS function which can process
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* any input image type.
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*
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* See also: im_exptra(), im_lintra().
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*
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* Returns: 0 on success, -1 on error
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*/
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typedef VipsUnary VipsInvert;
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typedef VipsUnaryClass VipsInvertClass;
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G_DEFINE_TYPE( VipsInvert, vips_invert, VIPS_TYPE_UNARY );
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static void
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vips_invert_buffer( VipsArithmetic *arithmetic, PEL *out, PEL **in, int width )
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{
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VipsImage *im = arithmetic->ready[0];
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PEL *p = in[0];
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int ne = width * im->Bands;
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int x;
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for( x = 0; x < ne; x++ )
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out[x] = 255 - p[x];
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}
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/* Save a bit of typing.
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*/
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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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/* Type promotion for invertion. Sign and value preserving. Make sure these
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* match the case statement in vips_invert_buffer() above.
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*/
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static const VipsBandFormat bandfmt_invert[10] = {
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/* UC C US S UI I F X D DX */
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UC, UC, UC, UC, UC, UC, UC, UC, UC, UC
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};
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static void
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vips_invert_class_init( VipsInvertClass *class )
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{
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VipsObjectClass *object_class = (VipsObjectClass *) class;
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VipsArithmeticClass *aclass = VIPS_ARITHMETIC_CLASS( class );
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object_class->nickname = "invert";
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object_class->description = _( "invert an image" );
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vips_arithmetic_set_format_table( aclass, bandfmt_invert );
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aclass->process_line = vips_invert_buffer;
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}
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static void
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vips_invert_init( VipsInvert *invert )
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{
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}
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int
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vips_invert( VipsImage *in, VipsImage **out, ... )
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{
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va_list ap;
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int result;
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va_start( ap, out );
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result = vips_call_split( "invert", ap, in, out );
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va_end( ap );
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return( result );
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}
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@ -175,7 +175,8 @@ G_DEFINE_TYPE( VipsSubtract, vips_subtract, VIPS_TYPE_BINARY );
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}
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static void
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subtract_buffer( VipsArithmetic *arithmetic, PEL *out, PEL **in, int width )
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vips_subtract_buffer( VipsArithmetic *arithmetic,
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PEL *out, PEL **in, int width )
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{
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VipsImage *im = arithmetic->ready[0];
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@ -227,7 +228,7 @@ subtract_buffer( VipsArithmetic *arithmetic, PEL *out, PEL **in, int width )
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#define DX VIPS_FORMAT_DPCOMPLEX
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/* Type promotion for subtraction. Sign and value preserving. Make sure these
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* match the case statement in subtract_buffer() above.
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* match the case statement in vips_subtract_buffer() above.
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*/
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static const VipsBandFormat bandfmt_subtract[10] = {
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/* UC C US S UI I F X D DX */
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@ -245,7 +246,7 @@ vips_subtract_class_init( VipsSubtractClass *class )
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vips_arithmetic_set_format_table( aclass, bandfmt_subtract );
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aclass->process_line = subtract_buffer;
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aclass->process_line = vips_subtract_buffer;
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}
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static void
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|
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@ -0,0 +1,98 @@
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/* base class for all unary operations
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*
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* 30/10/11
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* - from binary.c
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*/
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|
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/*
|
||||
|
||||
Copyright (C) 1991-2005 The National Gallery
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU 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 General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU 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
|
||||
|
||||
*/
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||||
|
||||
/*
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||||
|
||||
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
|
||||
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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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#include <vips/intl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <vips/vips.h>
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#include "arithmetic.h"
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#include "unary.h"
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G_DEFINE_ABSTRACT_TYPE( VipsUnary, vips_unary, VIPS_TYPE_ARITHMETIC );
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static int
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vips_unary_build( VipsObject *object )
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{
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VipsArithmetic *arithmetic = VIPS_ARITHMETIC( object );
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VipsUnary *unary = VIPS_UNARY( object );
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arithmetic->n = 1;
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arithmetic->in = (VipsImage **) vips_object_local_array( object, 1 );
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arithmetic->in[0] = unary->in;
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g_object_ref( arithmetic->in[0] );
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if( VIPS_OBJECT_CLASS( vips_unary_parent_class )->build( object ) )
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return( -1 );
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return( 0 );
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}
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static void
|
||||
vips_unary_class_init( VipsUnaryClass *class )
|
||||
{
|
||||
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
|
||||
VipsObjectClass *vobject_class = VIPS_OBJECT_CLASS( class );
|
||||
|
||||
gobject_class->set_property = vips_object_set_property;
|
||||
gobject_class->get_property = vips_object_get_property;
|
||||
|
||||
vobject_class->nickname = "unary";
|
||||
vobject_class->description = _( "unary operations" );
|
||||
vobject_class->build = vips_unary_build;
|
||||
|
||||
/* Create properties.
|
||||
*/
|
||||
|
||||
VIPS_ARG_IMAGE( class, "in", 1,
|
||||
_( "Input" ),
|
||||
_( "Input image argument" ),
|
||||
VIPS_ARGUMENT_REQUIRED_INPUT,
|
||||
G_STRUCT_OFFSET( VipsUnary, in ) );
|
||||
}
|
||||
|
||||
static void
|
||||
vips_unary_init( VipsUnary *unary )
|
||||
{
|
||||
/* Init our instance fields.
|
||||
*/
|
||||
}
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
/* base class for all unary arithmetic operations
|
||||
*/
|
||||
|
||||
/*
|
||||
|
||||
Copyright (C) 1991-2005 The National Gallery
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU 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 General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU 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
|
||||
|
||||
*/
|
||||
|
||||
#ifndef VIPS_UNARY_H
|
||||
#define VIPS_UNARY_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /*__cplusplus*/
|
||||
|
||||
#define VIPS_TYPE_UNARY (vips_unary_get_type())
|
||||
#define VIPS_UNARY( obj ) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST( (obj), VIPS_TYPE_UNARY, VipsUnary ))
|
||||
#define VIPS_UNARY_CLASS( klass ) \
|
||||
(G_TYPE_CHECK_CLASS_CAST( (klass), VIPS_TYPE_UNARY, VipsUnaryClass))
|
||||
#define VIPS_IS_UNARY( obj ) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_UNARY ))
|
||||
#define VIPS_IS_UNARY_CLASS( klass ) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_UNARY ))
|
||||
#define VIPS_UNARY_GET_CLASS( obj ) \
|
||||
(G_TYPE_INSTANCE_GET_CLASS( (obj), VIPS_TYPE_UNARY, VipsUnaryClass ))
|
||||
|
||||
typedef struct _VipsUnary {
|
||||
VipsArithmetic parent_instance;
|
||||
|
||||
/* The arg we get from the property.
|
||||
*/
|
||||
VipsImage *in;
|
||||
|
||||
} VipsUnary;
|
||||
|
||||
typedef VipsArithmeticClass VipsUnaryClass;
|
||||
|
||||
GType vips_unary_get_type( void );
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /*__cplusplus*/
|
||||
|
||||
#endif /*VIPS_UNARY_H*/
|
||||
|
||||
|
||||
|
|
@ -578,8 +578,11 @@ vips_cache_operation_build( VipsOperation **operation )
|
|||
if( (hit = g_hash_table_lookup( vips_cache_table, *operation )) ) {
|
||||
VIPS_DEBUG_MSG( "\thit %p\n", hit );
|
||||
|
||||
g_object_unref( *operation );
|
||||
/* Ref before unref in case *operation == hit.
|
||||
*/
|
||||
vips_cache_ref( hit );
|
||||
g_object_unref( *operation );
|
||||
|
||||
*operation = hit;
|
||||
}
|
||||
else {
|
||||
|
|
|
|||
Loading…
Reference in New Issue