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im_multiply() redone, fixes to max/min

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This commit is contained in:
John Cupitt 2011-11-07 09:42:44 +00:00
parent e5b5bed428
commit c80a19747f
10 changed files with 188 additions and 124 deletions
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3
ChangeLog
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@ -7,7 +7,8 @@
im_lintra(), im_lintra_vec(), im_black(), im_rot90, im_rot180(), im_rot270()
im_sintra(), im_costra(), im_tantra(), im_asintra(), im_acostra(),
im_atantra(), im_exptra(), im_exp10tra(), im_logtra(), im_log10tra(),
im_abs(), im_sign(), im_max(), im_maxpos(), im_deviate(), im_divide()
im_abs(), im_sign(), im_max(), im_maxpos(), im_deviate(), im_divide(),
im_multiply()
redone as classes
- added argument priorites to help control arg ordering
- generate has a 'stop' param to signal successful early termination

7
TODO
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@ -1,4 +1,9 @@
- doing VipsMax
- max is broken
$ ~/vips-7.26/bin/vips-7.26 vips im_max sarto_ng.tif
255
$ vips max sarto_ng.tif
165.000000

2
libvips/arithmetic/Makefile.am
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@ -12,7 +12,7 @@ libarithmetic_la_SOURCES = \
im_maxpos_avg.c \
im_maxpos_vec.c \
im_measure.c \
im_multiply.c \
multiply.c \
im_point_bilinear.c \
im_remainder.c \
sign.c \

2
libvips/arithmetic/arithmetic.c
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@ -503,6 +503,7 @@ vips_arithmetic_operation_init( void )
{
extern GType vips_add_get_type( void );
extern GType vips_subtract_get_type( void );
extern GType vips_multiply_get_type( void );
extern GType vips_divide_get_type( void );
extern GType vips_invert_get_type( void );
extern GType vips_avg_get_type( void );
@ -516,6 +517,7 @@ vips_arithmetic_operation_init( void )
vips_add_get_type();
vips_subtract_get_type();
vips_multiply_get_type();
vips_divide_get_type();
vips_invert_get_type();
vips_avg_get_type();

29
libvips/arithmetic/max.c
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@ -135,11 +135,10 @@ vips_max_build( VipsObject *object )
static void *
vips_max_start( VipsStatistic *statistic )
{
VipsMax *global = (VipsMax *) statistic;
VipsMax *max;
max = g_new( VipsMax, 1 );
*max = *global;
max->set = FALSE;
return( (void *) max );
}
@ -152,8 +151,8 @@ vips_max_stop( VipsStatistic *statistic, void *seq )
VipsMax *global = (VipsMax *) statistic;
VipsMax *max = (VipsMax *) seq;
if( !global->set ||
max->max < global->max ) {
if( max->set &&
(!global->set || max->max > global->max) ) {
global->max = max->max;
global->x = max->x;
global->y = max->y;
@ -190,7 +189,7 @@ vips_max_stop( VipsStatistic *statistic, void *seq )
/* real max with an upper bound.
*/
#define LOOPL( TYPE, UPPER ) { \
#define LOOPU( TYPE, UPPER ) { \
TYPE *p = (TYPE *) in; \
TYPE m; \
\
@ -254,18 +253,18 @@ vips_max_scan( VipsStatistic *statistic, void *seq,
int i;
switch( vips_image_get_format( statistic->in ) ) {
case IM_BANDFMT_UCHAR: LOOPL( unsigned char, 0 ); break;
case IM_BANDFMT_CHAR: LOOPL( signed char, SCHAR_MAX ); break;
case IM_BANDFMT_USHORT: LOOPL( unsigned short, 0 ); break;
case IM_BANDFMT_SHORT: LOOPL( signed short, SHRT_MAX ); break;
case IM_BANDFMT_UINT: LOOPL( unsigned int, 0 ); break;
case IM_BANDFMT_INT: LOOPL( signed int, INT_MAX ); break;
case IM_BANDFMT_UCHAR: LOOPU( unsigned char, UCHAR_MAX ); break;
case IM_BANDFMT_CHAR: LOOPU( signed char, SCHAR_MAX ); break;
case IM_BANDFMT_USHORT: LOOPU( unsigned short, USHRT_MAX ); break;
case IM_BANDFMT_SHORT: LOOPU( signed short, SHRT_MAX ); break;
case IM_BANDFMT_UINT: LOOPU( unsigned int, UINT_MAX ); break;
case IM_BANDFMT_INT: LOOPU( signed int, INT_MAX ); break;
case IM_BANDFMT_FLOAT: LOOP( float ); break;
case IM_BANDFMT_DOUBLE: LOOP( double ); break;
case IM_BANDFMT_FLOAT: LOOP( float ); break;
case IM_BANDFMT_DOUBLE: LOOP( double ); break;
case IM_BANDFMT_COMPLEX: CLOOP( float ); break;
case IM_BANDFMT_DPCOMPLEX: CLOOP( double ); break;
case IM_BANDFMT_COMPLEX:CLOOP( float ); break;
case IM_BANDFMT_DPCOMPLEX:CLOOP( double ); break;
default:
g_assert( 0 );

7
libvips/arithmetic/min.c
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@ -136,11 +136,10 @@ vips_min_build( VipsObject *object )
static void *
vips_min_start( VipsStatistic *statistic )
{
VipsMin *global = (VipsMin *) statistic;
VipsMin *min;
min = g_new( VipsMin, 1 );
*min = *global;
min->set = FALSE;
return( (void *) min );
}
@ -153,8 +152,8 @@ vips_min_stop( VipsStatistic *statistic, void *seq )
VipsMin *global = (VipsMin *) statistic;
VipsMin *min = (VipsMin *) seq;
if( !global->set ||
min->min < global->min ) {
if( min->set &&
(!global->set || min->min < global->min) ) {
global->min = min->min;
global->x = min->x;
global->y = min->y;

242
libvips/arithmetic/im_multiply.c → libvips/arithmetic/multiply.c
View File

@ -25,23 +25,25 @@
* - add gtkdoc comments
* 31/7/10
* - remove liboil
* 7/11/11
* - redo as a class
*/
/*
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
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 Lesser General Public License for more details.
GNU General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
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
@ -53,6 +55,10 @@
*/
/*
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
@ -63,95 +69,15 @@
#include <math.h>
#include <vips/vips.h>
#include <vips/internal.h>
/* Complex multiply.
*/
#define CLOOP( TYPE ) { \
TYPE *p1 = (TYPE *) in[0]; \
TYPE *p2 = (TYPE *) in[1]; \
TYPE *q = (TYPE *) out; \
\
for( x = 0; x < sz; x++ ) { \
double x1 = p1[0]; \
double y1 = p1[1]; \
double x2 = p2[0]; \
double y2 = p2[1]; \
\
p1 += 2; \
p2 += 2; \
\
q[0] = x1 * x2 - y1 * y2; \
q[1] = x1 * y2 + x2 * y1; \
\
q += 2; \
} \
}
/* Real multiply.
*/
#define RLOOP( IN, OUT ) { \
IN *p1 = (IN *) in[0]; \
IN *p2 = (IN *) in[1]; \
OUT *q = (OUT *) out; \
\
for( x = 0; x < sz; x++ ) \
q[x] = p1[x] * p2[x]; \
}
static void
multiply_buffer( PEL **in, PEL *out, int width, IMAGE *im )
{
const int sz = width * im->Bands;
int x;
/* Multiply all input types. Keep types here in sync with
* bandfmt_multiply[] below.
*/
switch( im->BandFmt ) {
case IM_BANDFMT_CHAR: RLOOP( signed char, signed short ); break;
case IM_BANDFMT_UCHAR: RLOOP( unsigned char, unsigned short ); break;
case IM_BANDFMT_SHORT: RLOOP( signed short, signed int ); break;
case IM_BANDFMT_USHORT: RLOOP( unsigned short, unsigned int ); break;
case IM_BANDFMT_INT: RLOOP( signed int, signed int ); break;
case IM_BANDFMT_UINT: RLOOP( unsigned int, unsigned int ); break;
case IM_BANDFMT_FLOAT: RLOOP( float, float ); break;
case IM_BANDFMT_COMPLEX: CLOOP( float ); break;
case IM_BANDFMT_DOUBLE: RLOOP( double, double ); break;
case IM_BANDFMT_DPCOMPLEX: CLOOP( double ); break;
default:
g_assert( 0 );
}
}
/* Save a bit of typing.
*/
#define UC IM_BANDFMT_UCHAR
#define C IM_BANDFMT_CHAR
#define US IM_BANDFMT_USHORT
#define S IM_BANDFMT_SHORT
#define UI IM_BANDFMT_UINT
#define I IM_BANDFMT_INT
#define F IM_BANDFMT_FLOAT
#define X IM_BANDFMT_COMPLEX
#define D IM_BANDFMT_DOUBLE
#define DX IM_BANDFMT_DPCOMPLEX
/* Type promotion for multiplication. Sign and value preserving. Make sure
* these match the case statement in multiply_buffer() above.
*/
static int bandfmt_multiply[10] = {
/* UC C US S UI I F X D DX */
US, S, UI, I, UI, I, F, X, D, DX
};
#include "arithmetic.h"
#include "binary.h"
/**
* im_multiply:
* @in1: input #IMAGE 1
* @in2: input #IMAGE 2
* @out: output #IMAGE
* VipsMultiply:
* @in1: input #VipsImage 1
* @in2: input #VipsImage 2
* @out: output #VipsImage
*
* This operation calculates @in1 * @in2 and writes the result to @out.
*
@ -169,7 +95,7 @@ static int bandfmt_multiply[10] = {
* following table is used to determine the output type:
*
* <table>
* <title>im_multiply() type promotion</title>
* <title>VipsMultiply type promotion</title>
* <tgroup cols='2' align='left' colsep='1' rowsep='1'>
* <thead>
* <row>
@ -225,15 +151,129 @@ static int bandfmt_multiply[10] = {
* In other words, the output type is just large enough to hold the whole
* range of possible values.
*
* See also: im_divide(), im_lintra().
* See also: im_multiply(), im_lintra().
*
* Returns: 0 on success, -1 on error
*/
int
im_multiply( IMAGE *in1, IMAGE *in2, IMAGE *out )
{
return( im__arith_binary( "im_multiply",
in1, in2, out,
bandfmt_multiply,
(im_wrapmany_fn) multiply_buffer, NULL ) );
typedef VipsBinary VipsMultiply;
typedef VipsBinaryClass VipsMultiplyClass;
G_DEFINE_TYPE( VipsMultiply, vips_multiply, VIPS_TYPE_BINARY );
/* Complex multiply.
*/
#define CLOOP( TYPE ) { \
TYPE *left = (TYPE *) in[0]; \
TYPE *right = (TYPE *) in[1]; \
TYPE *q = (TYPE *) out; \
\
for( x = 0; x < sz; x++ ) { \
double x1 = left[0]; \
double y1 = left[1]; \
double x2 = right[0]; \
double y2 = right[1]; \
\
left += 2; \
right += 2; \
\
q[0] = x1 * x2 - y1 * y2; \
q[1] = x1 * y2 + x2 * y1; \
\
q += 2; \
} \
}
/* Real multiply.
*/
#define RLOOP( IN, OUT ) { \
IN *left = (IN *) in[0]; \
IN *right = (IN *) in[1]; \
OUT *q = (OUT *) out; \
\
for( x = 0; x < sz; x++ ) \
q[x] = left[x] * right[x]; \
}
static void
vips_multiply_buffer( VipsArithmetic *arithmetic,
PEL *out, PEL **in, int width )
{
VipsImage *im = arithmetic->ready[0];
const int sz = width * vips_image_get_bands( im );
int x;
/* Keep types here in sync with vips_bandfmt_multiply[]
* below.
*/
switch( vips_image_get_format( im ) ) {
case VIPS_FORMAT_CHAR: RLOOP( signed char, signed short ); break;
case VIPS_FORMAT_UCHAR: RLOOP( unsigned char, signed short ); break;
case VIPS_FORMAT_SHORT: RLOOP( signed short, signed int ); break;
case VIPS_FORMAT_USHORT:RLOOP( unsigned short, signed int ); break;
case VIPS_FORMAT_INT: RLOOP( signed int, signed int ); break;
case VIPS_FORMAT_UINT: RLOOP( unsigned int, signed int ); break;
case VIPS_FORMAT_FLOAT: RLOOP( float, float ); break;
case VIPS_FORMAT_DOUBLE: RLOOP( double, double ); break;
case VIPS_FORMAT_COMPLEX: CLOOP( float ); break;
case VIPS_FORMAT_DPCOMPLEX: CLOOP( double ); break;
default:
g_assert( 0 );
}
}
/* Save a bit of typing.
*/
#define UC VIPS_FORMAT_UCHAR
#define C VIPS_FORMAT_CHAR
#define US VIPS_FORMAT_USHORT
#define S VIPS_FORMAT_SHORT
#define UI VIPS_FORMAT_UINT
#define I VIPS_FORMAT_INT
#define F VIPS_FORMAT_FLOAT
#define X VIPS_FORMAT_COMPLEX
#define D VIPS_FORMAT_DOUBLE
#define DX VIPS_FORMAT_DPCOMPLEX
/* Type promotion for multiplication. Sign and value preserving. Make sure
* these match the case statement in multiply_buffer() above.
*/
static int vips_bandfmt_multiply[10] = {
/* UC C US S UI I F X D DX */
US, S, UI, I, UI, I, F, X, D, DX
};
static void
vips_multiply_class_init( VipsMultiplyClass *class )
{
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsArithmeticClass *aclass = VIPS_ARITHMETIC_CLASS( class );
object_class->nickname = "multiply";
object_class->description = _( "multiply two images" );
vips_arithmetic_set_format_table( aclass, vips_bandfmt_multiply );
aclass->process_line = vips_multiply_buffer;
}
static void
vips_multiply_init( VipsMultiply *multiply )
{
}
int
vips_multiply( VipsImage *left, VipsImage *right, VipsImage **out, ... )
{
va_list ap;
int result;
va_start( ap, out );
result = vips_call_split( "multiply", ap, left, right, out );
va_end( ap );
return( result );
}

16
libvips/deprecated/vips7compat.c
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@ -928,6 +928,22 @@ im_subtract( IMAGE *in1, IMAGE *in2, IMAGE *out )
return( 0 );
}
int
im_multiply( IMAGE *in1, IMAGE *in2, IMAGE *out )
{
VipsImage *x;
if( vips_call( "multiply", in1, in2, &x, NULL ) )
return( -1 );
if( im_copy( x, out ) ) {
g_object_unref( x );
return( -1 );
}
g_object_unref( x );
return( 0 );
}
int
im_divide( IMAGE *in1, IMAGE *in2, IMAGE *out )
{

3
libvips/include/vips/arithmetic.h
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@ -70,6 +70,8 @@ int vips_add( VipsImage *left, VipsImage *right, VipsImage **out, ... )
__attribute__((sentinel));
int vips_subtract( VipsImage *in1, VipsImage *in2, VipsImage **out, ... )
__attribute__((sentinel));
int vips_multiply( VipsImage *left, VipsImage *right, VipsImage **out, ... )
__attribute__((sentinel));
int vips_divide( VipsImage *left, VipsImage *right, VipsImage **out, ... )
__attribute__((sentinel));
int vips_avg( VipsImage *in, double *out, ... )
@ -108,7 +110,6 @@ int im_maxpos_vec( VipsImage *im, int *xpos, int *ypos, double *maxima, int n );
int im_minpos_vec( VipsImage *im, int *xpos, int *ypos, double *minima, int n );
int im_bandmean( VipsImage *in, VipsImage *out );
int im_multiply( VipsImage *in1, VipsImage *in2, VipsImage *out );
int im_remainder( VipsImage *in1, VipsImage *in2, VipsImage *out );
int im_remainder_vec( VipsImage *in, VipsImage *out, int n, double *c );
int im_remainderconst( VipsImage *in, VipsImage *out, double c );

1
libvips/include/vips/vips7compat.h
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@ -522,6 +522,7 @@ size_t im_ref_string_get_length( const GValue *value );
int im_add( VipsImage *in1, VipsImage *in2, VipsImage *out );
int im_subtract( VipsImage *in1, VipsImage *in2, VipsImage *out );
int im_multiply( VipsImage *in1, VipsImage *in2, VipsImage *out );
int im_divide( VipsImage *in1, VipsImage *in2, VipsImage *out );
int im_min( VipsImage *in, double *out );
int im_minpos( VipsImage *in, int *xpos, int *ypos, double *out );