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VipsAdd works 

done VipsAdd class and made an im_add() stub for compat
This commit is contained in:
John Cupitt 2011-04-04 15:46:57 +01:00
parent ce03da8c71
commit 8d367998c6
12 changed files with 463 additions and 624 deletions
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1
ChangeLog
View File

@ -45,6 +45,7 @@
- all of iofuncs moved to vips_ namespace
- lots of old iofuncs API moved to deprecated
- added VipsOperation, an abstract base class for all vips operations
- added VipsAdd, the first operation object
30/11/10 started 7.24.0
- bump for new stable

4
TODO
View File

@ -1,8 +1,4 @@
- we have VipsOperation ... now try VipsArithmetic and VipsBinary, then we can
do VipsAdd
- add MATLAB write

1
libvips/arithmetic/Makefile.am
View File

@ -3,7 +3,6 @@ noinst_LTLIBRARIES = libarithmetic.la
libarithmetic_la_SOURCES = \
arith_dispatch.c \
im_abs.c \
im_add.c \
im_avg.c \
im_bandmean.c \
im_cross_phase.c \

137
libvips/arithmetic/add.c
View File

@ -1,4 +1,41 @@
/* add operation
*
* Copyright: 1990, N. Dessipris.
*
* Author: Nicos Dessipris
* Written on: 02/05/1990
* Modified on:
* 29/4/93 J.Cupitt
* - now works for partial images
* 1/7/93 JC
* - adapted for partial v2
* 9/5/95 JC
* - simplified: now just handles 10 cases (instead of 50), using
* im_clip2*() to help
* - now uses im_wrapmany() rather than im_generate()
* 31/5/96 JC
* - SWAP() removed, *p++ removed
* 27/9/04
* - im__cast_and_call() now matches bands as well
* - ... so 1 band + 4 band image -> 4 band image
* 8/12/06
* - add liboil support
* 18/8/08
* - revise upcasting system
* - im__cast_and_call() no longer sets bbits for you
* - add gtkdoc comments
* - remove separate complex case, just double size
* 11/9/09
* - im__cast_and_call() becomes im__arith_binary()
* - more of operation scaffold moved inside
* 25/7/10
* - remove oil support again ... we'll try Orc instead
* 29/10/10
* - move to VipsVector for Orc support
* 28/2/11
* - argh vector int/uint was broken
* 4/4/11
* - rewrite as a class
*/
/*
@ -49,24 +86,88 @@
#include <dmalloc.h>
#endif /*WITH_DMALLOC*/
/* VipsAdd class
/**
* VipsAdd:
* @in1: input image
* @in2: input image
* @out: output image
*
* This operation calculates @in1 + @in2 and writes the result to @out.
* The images must be the same size. They may have any format.
*
* If the number of bands differs, one of the images
* must have one band. In this case, an n-band image is formed from the
* one-band image by joining n copies of the one-band image together, and then
* the two n-band images are operated upon.
*
* The two input images are cast up to the smallest common type (see table
* Smallest common format in
* <link linkend="VIPS-arithmetic">arithmetic</link>), then the
* following table is used to determine the output type:
*
* <table>
* <title>im_add() type promotion</title>
* <tgroup cols='2' align='left' colsep='1' rowsep='1'>
* <thead>
* <row>
* <entry>input type</entry>
* <entry>output type</entry>
* </row>
* </thead>
* <tbody>
* <row>
* <entry>uchar</entry>
* <entry>ushort</entry>
* </row>
* <row>
* <entry>char</entry>
* <entry>short</entry>
* </row>
* <row>
* <entry>ushort</entry>
* <entry>uint</entry>
* </row>
* <row>
* <entry>short</entry>
* <entry>int</entry>
* </row>
* <row>
* <entry>uint</entry>
* <entry>uint</entry>
* </row>
* <row>
* <entry>int</entry>
* <entry>int</entry>
* </row>
* <row>
* <entry>float</entry>
* <entry>float</entry>
* </row>
* <row>
* <entry>double</entry>
* <entry>double</entry>
* </row>
* <row>
* <entry>complex</entry>
* <entry>complex</entry>
* </row>
* <row>
* <entry>double complex</entry>
* <entry>double complex</entry>
* </row>
* </tbody>
* </tgroup>
* </table>
*
* In other words, the output type is just large enough to hold the whole
* range of possible values.
*
* Operations on integer images are performed using the processor's vector unit,
* if possible. Disable this with --vips-novector or IM_NOVECTOR.
*
* See also: im_subtract(), im_lintra().
*/
#define VIPS_TYPE_ADD (vips_add_get_type())
#define VIPS_ADD( obj ) \
(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
VIPS_TYPE_ADD, VipsAdd ))
#define VIPS_ADD_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_CAST( (klass), \
VIPS_TYPE_ADD, VipsAddClass))
#define VIPS_IS_ADD( obj ) \
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_ADD ))
#define VIPS_IS_ADD_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_ADD ))
#define VIPS_ADD_GET_CLASS( obj ) \
(G_TYPE_INSTANCE_GET_CLASS( (obj), \
VIPS_TYPE_ADD, VipsAddClass ))
typedef VipsBinary VipsAdd;
typedef VipsBinaryClass VipsAddClass;
@ -162,10 +263,14 @@ static int bandfmt_add[10] = {
static void
vips_add_class_init( VipsAddClass *class )
{
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsArithmeticClass *aclass = VIPS_ARITHMETIC_CLASS( class );
VipsBinaryClass *bclass = VIPS_BINARY_CLASS( class );
VipsVector *v;
object_class->nickname = "add";
object_class->description = _( "add two images" );
vips_arithmetic_set_format_table( aclass, bandfmt_add );
v = vips_arithmetic_get_program( aclass, VIPS_FORMAT_UCHAR );

22
libvips/arithmetic/binary.c
View File

@ -252,7 +252,7 @@ static int
vips_binary_build( VipsObject *object )
{
VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( object );
const char *domain = class->description;
const char *domain = class->nickname;
VipsArithmetic *arithmetic = VIPS_ARITHMETIC( object );
VipsArithmeticClass *aclass = VIPS_ARITHMETIC_GET_CLASS( arithmetic );
VipsBinary *binary = VIPS_BINARY( object );
@ -318,16 +318,6 @@ vips_binary_class_init( VipsBinaryClass *class )
/* Create properties.
*/
pspec = g_param_spec_object( "left-image",
"Left", "Left-hand image argument",
VIPS_TYPE_IMAGE,
G_PARAM_READWRITE );
g_object_class_install_property( gobject_class,
PROP_LEFT, pspec );
vips_object_class_install_argument( vobject_class, pspec,
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsBinary, left ) );
pspec = g_param_spec_object( "right-image",
"Right", "Right-hand image argument",
VIPS_TYPE_IMAGE,
@ -337,6 +327,16 @@ vips_binary_class_init( VipsBinaryClass *class )
vips_object_class_install_argument( vobject_class, pspec,
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsBinary, right ) );
pspec = g_param_spec_object( "left-image",
"Left", "Left-hand image argument",
VIPS_TYPE_IMAGE,
G_PARAM_READWRITE );
g_object_class_install_property( gobject_class,
PROP_LEFT, pspec );
vips_object_class_install_argument( vobject_class, pspec,
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsBinary, left ) );
}
static void

545
libvips/arithmetic/im_add.c
View File

@ -1,545 +0,0 @@
/* im_add.c
*
* Copyright: 1990, N. Dessipris.
*
* Author: Nicos Dessipris
* Written on: 02/05/1990
* Modified on:
* 29/4/93 J.Cupitt
* - now works for partial images
* 1/7/93 JC
* - adapted for partial v2
* 9/5/95 JC
* - simplified: now just handles 10 cases (instead of 50), using
* im_clip2*() to help
* - now uses im_wrapmany() rather than im_generate()
* 31/5/96 JC
* - SWAP() removed, *p++ removed
* 27/9/04
* - im__cast_and_call() now matches bands as well
* - ... so 1 band + 4 band image -> 4 band image
* 8/12/06
* - add liboil support
* 18/8/08
* - revise upcasting system
* - im__cast_and_call() no longer sets bbits for you
* - add gtkdoc comments
* - remove separate complex case, just double size
* 11/9/09
* - im__cast_and_call() becomes im__arith_binary()
* - more of operation scaffold moved inside
* 25/7/10
* - remove oil support again ... we'll try Orc instead
* 29/10/10
* - move to VipsVector for Orc support
* 28/2/11
* - argh vector int/uint was broken
*/
/*
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>
#include <vips/vector.h>
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif /*WITH_DMALLOC*/
#define LOOP( 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 VipsVector *add_vectors[IM_BANDFMT_LAST] = { NULL };
static void
add_buffer( PEL **in, PEL *out, int width, IMAGE *im )
{
/* Complex just doubles the size.
*/
const int sz = width * im->Bands *
(vips_bandfmt_iscomplex( im->BandFmt ) ? 2 : 1);
if( vips_vector_get_enabled() &&
add_vectors[im->BandFmt] ) {
VipsVector *vector = add_vectors[im->BandFmt];
VipsExecutor ex;
vips_executor_set_program( &ex, vector, sz );
vips_executor_set_array( &ex, vector->s[0], in[0] );
vips_executor_set_array( &ex, vector->s[1], in[1] );
vips_executor_set_destination( &ex, out );
vips_executor_run( &ex );
}
else {
int x;
/* Add all input types. Keep types here in sync with
* bandfmt_add[] below.
*/
switch( im->BandFmt ) {
case IM_BANDFMT_UCHAR:
LOOP( unsigned char, unsigned short ); break;
case IM_BANDFMT_CHAR:
LOOP( signed char, signed short ); break;
case IM_BANDFMT_USHORT:
LOOP( unsigned short, unsigned int ); break;
case IM_BANDFMT_SHORT:
LOOP( signed short, signed int ); break;
case IM_BANDFMT_UINT:
LOOP( unsigned int, unsigned int ); break;
case IM_BANDFMT_INT:
LOOP( signed int, signed int ); break;
case IM_BANDFMT_FLOAT:
case IM_BANDFMT_COMPLEX:
LOOP( float, float ); break;
case IM_BANDFMT_DOUBLE:
case IM_BANDFMT_DPCOMPLEX:
LOOP( double, 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
/* For two integer types, the "largest", ie. one which can represent the
* full range of both.
*/
static int bandfmt_largest[6][6] = {
/* UC C US S UI I */
/* UC */ { UC, S, US, S, UI, I },
/* C */ { S, C, I, S, I, I },
/* US */ { US, I, US, I, UI, I },
/* S */ { S, S, I, S, I, I },
/* UI */ { UI, I, UI, I, UI, I },
/* I */ { I, I, I, I, I, I }
};
/* For two formats, find one which can represent the full range of both.
*/
static VipsBandFmt
im__format_common( VipsBandFmt in1, VipsBandFmt in2 )
{
if( vips_bandfmt_iscomplex( in1 ) ||
vips_bandfmt_iscomplex( in2 ) ) {
/* What kind of complex?
*/
if( in1 == IM_BANDFMT_DPCOMPLEX || in2 == IM_BANDFMT_DPCOMPLEX )
/* Output will be DPCOMPLEX.
*/
return( IM_BANDFMT_DPCOMPLEX );
else
return( IM_BANDFMT_COMPLEX );
}
else if( vips_bandfmt_isfloat( in1 ) ||
vips_bandfmt_isfloat( in2 ) ) {
/* What kind of float?
*/
if( in1 == IM_BANDFMT_DOUBLE || in2 == IM_BANDFMT_DOUBLE )
return( IM_BANDFMT_DOUBLE );
else
return( IM_BANDFMT_FLOAT );
}
else
/* Must be int+int -> int.
*/
return( bandfmt_largest[in1][in2] );
}
int
im__formatalike_vec( IMAGE **in, IMAGE **out, int n )
{
int i;
VipsBandFmt fmt;
g_assert( n >= 1 );
fmt = in[0]->BandFmt;
for( i = 1; i < n; i++ )
fmt = im__format_common( fmt, in[i]->BandFmt );
for( i = 0; i < n; i++ )
if( im_clip2fmt( in[i], out[i], fmt ) )
return( -1 );
return( 0 );
}
int
im__formatalike( IMAGE *in1, IMAGE *in2, IMAGE *out1, IMAGE *out2 )
{
IMAGE *in[2];
IMAGE *out[2];
in[0] = in1;
in[1] = in2;
out[0] = out1;
out[1] = out2;
return( im__formatalike_vec( in, out, 2 ) );
}
/* Make an n-band image. Input 1 or n bands.
*/
int
im__bandup( const char *domain, IMAGE *in, IMAGE *out, int n )
{
IMAGE *bands[256];
int i;
if( in->Bands == n )
return( im_copy( in, out ) );
if( in->Bands != 1 ) {
im_error( domain, _( "not one band or %d bands" ), n );
return( -1 );
}
if( n > 256 || n < 1 ) {
im_error( domain, "%s", _( "bad bands" ) );
return( -1 );
}
for( i = 0; i < n; i++ )
bands[i] = in;
return( im_gbandjoin( bands, out, n ) );
}
int
im__bandalike_vec( const char *domain, IMAGE **in, IMAGE **out, int n )
{
int i;
int max_bands;
g_assert( n >= 1 );
max_bands = in[0]->Bands;
for( i = 1; i < n; i++ )
max_bands = IM_MAX( max_bands, in[i]->Bands );
for( i = 0; i < n; i++ )
if( im__bandup( domain, in[i], out[i], max_bands ) )
return( -1 );
return( 0 );
}
int
im__bandalike( const char *domain,
IMAGE *in1, IMAGE *in2, IMAGE *out1, IMAGE *out2 )
{
IMAGE *in[2];
IMAGE *out[2];
in[0] = in1;
in[1] = in2;
out[0] = out1;
out[1] = out2;
if( im__bandalike_vec( domain, in, out, 2 ) )
return( -1 );
return( 0 );
}
/* The common part of most binary arithmetic, relational and boolean
* operators. We:
*
* - check in and out
* - cast in1 and in2 up to a common format
* - cast the common format to the output format with the supplied table
* - equalise bands
* - run the supplied buffer operation passing one of the up-banded,
* up-casted and up-sized inputs as the first param
*/
int
im__arith_binary( const char *domain,
IMAGE *in1, IMAGE *in2, IMAGE *out,
int format_table[10],
im_wrapmany_fn fn, void *b )
{
IMAGE *t[5];
if( im_piocheck( in1, out ) ||
im_pincheck( in2 ) ||
im_check_bands_1orn( domain, in1, in2 ) ||
im_check_size_same( domain, in1, in2 ) ||
im_check_uncoded( domain, in1 ) ||
im_check_uncoded( domain, in2 ) )
return( -1 );
/* Cast our input images up to a common format and bands.
*/
if( im_open_local_array( out, t, 4, domain, "p" ) ||
im__formatalike( in1, in2, t[0], t[1] ) ||
im__bandalike( domain, t[0], t[1], t[2], t[3] ) )
return( -1 );
/* Generate the output.
*/
if( im_cp_descv( out, t[2], t[3], NULL ) )
return( -1 );
/* What number of bands will we write? Same as up-banded input.
*/
out->Bands = t[2]->Bands;
/* What output type will we write?
*/
out->BandFmt = format_table[t[2]->BandFmt];
/* And process! The buffer function gets one of the input images as a
* sample.
*/
t[4] = NULL;
if( im_wrapmany( t + 2, out, fn, t[2], b ) )
return( -1 );
return( 0 );
}
VipsVector *
im__init_program( VipsVector *vectors[IM_BANDFMT_LAST],
VipsBandFmt format_table[IM_BANDFMT_LAST], VipsBandFmt fmt )
{
int isize = im__sizeof_bandfmt[fmt];
int osize = im__sizeof_bandfmt[format_table[fmt]];
VipsVector *v;
v = vips_vector_new( "binary arith", osize );
vips_vector_source_name( v, "s1", isize );
vips_vector_source_name( v, "s2", isize );
vips_vector_temporary( v, "t1", osize );
vips_vector_temporary( v, "t2", osize );
vectors[fmt] = v;
return( v );
}
void
im__compile_programs( VipsVector *vectors[IM_BANDFMT_LAST] )
{
int fmt;
for( fmt = 0; fmt < IM_BANDFMT_LAST; fmt++ ) {
if( vectors[fmt] &&
!vips_vector_compile( vectors[fmt] ) )
IM_FREEF( vips_vector_free, vectors[fmt] );
}
#ifdef DEBUG
printf( "im__compile_programs: " );
for( fmt = 0; fmt < IM_BANDFMT_LAST; fmt++ )
if( vectors[fmt] )
printf( "%s ", im_BandFmt2char( fmt ) );
printf( "\n" );
#endif /*DEBUG*/
}
/* Type promotion for addition. Sign and value preserving. Make sure these
* match the case statement in add_buffer() above.
*/
static int bandfmt_add[10] = {
/* UC C US S UI I F X D DX */
US, S, UI, I, UI, I, F, X, D, DX
};
static void
build_programs( void )
{
static gboolean done = FALSE;
VipsVector *v;
if( done )
return;
done = TRUE;
v = im__init_program( add_vectors, bandfmt_add, IM_BANDFMT_UCHAR );
vips_vector_asm2( v, "convubw", "t1", "s1" );
vips_vector_asm2( v, "convubw", "t2", "s2" );
vips_vector_asm3( v, "addw", "d1", "t1", "t2" );
v = im__init_program( add_vectors, bandfmt_add, IM_BANDFMT_CHAR );
vips_vector_asm2( v, "convsbw", "t1", "s1" );
vips_vector_asm2( v, "convsbw", "t2", "s2" );
vips_vector_asm3( v, "addw", "d1", "t1", "t2" );
v = im__init_program( add_vectors, bandfmt_add, IM_BANDFMT_USHORT );
vips_vector_asm2( v, "convuwl", "t1", "s1" );
vips_vector_asm2( v, "convuwl", "t2", "s2" );
vips_vector_asm3( v, "addl", "d1", "t1", "t2" );
v = im__init_program( add_vectors, bandfmt_add, IM_BANDFMT_SHORT );
vips_vector_asm2( v, "convswl", "t1", "s1" );
vips_vector_asm2( v, "convswl", "t2", "s2" );
vips_vector_asm3( v, "addl", "d1", "t1", "t2" );
/*
uint/int are a little slower than C, on a c2d anyway
float/double/complex are not handled well
v = im__init_program( add_vectors, IM_BANDFMT_UINT );
vips_vector_asm3( v, "addl", "d1", "s1", "s2" );
v = im__init_program( add_vectors, IM_BANDFMT_INT );
vips_vector_asm3( v, "addl", "d1", "s1", "s2" );
*/
im__compile_programs( add_vectors );
}
/**
* im_add:
* @in1: input image
* @in2: input image
* @out: output image
*
* This operation calculates @in1 + @in2 and writes the result to @out.
* The images must be the same size. They may have any format.
*
* If the number of bands differs, one of the images
* must have one band. In this case, an n-band image is formed from the
* one-band image by joining n copies of the one-band image together, and then
* the two n-band images are operated upon.
*
* The two input images are cast up to the smallest common type (see table
* Smallest common format in
* <link linkend="VIPS-arithmetic">arithmetic</link>), then the
* following table is used to determine the output type:
*
* <table>
* <title>im_add() type promotion</title>
* <tgroup cols='2' align='left' colsep='1' rowsep='1'>
* <thead>
* <row>
* <entry>input type</entry>
* <entry>output type</entry>
* </row>
* </thead>
* <tbody>
* <row>
* <entry>uchar</entry>
* <entry>ushort</entry>
* </row>
* <row>
* <entry>char</entry>
* <entry>short</entry>
* </row>
* <row>
* <entry>ushort</entry>
* <entry>uint</entry>
* </row>
* <row>
* <entry>short</entry>
* <entry>int</entry>
* </row>
* <row>
* <entry>uint</entry>
* <entry>uint</entry>
* </row>
* <row>
* <entry>int</entry>
* <entry>int</entry>
* </row>
* <row>
* <entry>float</entry>
* <entry>float</entry>
* </row>
* <row>
* <entry>double</entry>
* <entry>double</entry>
* </row>
* <row>
* <entry>complex</entry>
* <entry>complex</entry>
* </row>
* <row>
* <entry>double complex</entry>
* <entry>double complex</entry>
* </row>
* </tbody>
* </tgroup>
* </table>
*
* In other words, the output type is just large enough to hold the whole
* range of possible values.
*
* Operations on integer images are performed using the processor's vector unit,
* if possible. Disable this with --vips-novector or IM_NOVECTOR.
*
* See also: im_subtract(), im_lintra().
*
* Returns: 0 on success, -1 on error
*/
int
im_add( IMAGE *in1, IMAGE *in2, IMAGE *out )
{
if( vips_vector_get_enabled() )
build_programs();
return( im__arith_binary( "im_add",
in1, in2, out,
bandfmt_add,
(im_wrapmany_fn) add_buffer, NULL ) );
}

254
libvips/deprecated/vips7compat.c
View File

@ -46,6 +46,7 @@
#include <vips/vips.h>
#include <vips/internal.h>
#include <vips/debug.h>
#include <vips/vector.h>
#ifdef WITH_DMALLOC
#include <dmalloc.h>
@ -505,3 +506,256 @@ im_wraptwo( IMAGE *in1, IMAGE *in2, IMAGE *out,
(im_wrapmany_fn) wraptwo_gen, bun, NULL ) );
}
/* 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
/* For two integer types, the "largest", ie. one which can represent the
* full range of both.
*/
static int bandfmt_largest[6][6] = {
/* UC C US S UI I */
/* UC */ { UC, S, US, S, UI, I },
/* C */ { S, C, I, S, I, I },
/* US */ { US, I, US, I, UI, I },
/* S */ { S, S, I, S, I, I },
/* UI */ { UI, I, UI, I, UI, I },
/* I */ { I, I, I, I, I, I }
};
/* For two formats, find one which can represent the full range of both.
*/
static VipsBandFmt
im__format_common( VipsBandFmt in1, VipsBandFmt in2 )
{
if( vips_bandfmt_iscomplex( in1 ) ||
vips_bandfmt_iscomplex( in2 ) ) {
/* What kind of complex?
*/
if( in1 == IM_BANDFMT_DPCOMPLEX || in2 == IM_BANDFMT_DPCOMPLEX )
/* Output will be DPCOMPLEX.
*/
return( IM_BANDFMT_DPCOMPLEX );
else
return( IM_BANDFMT_COMPLEX );
}
else if( vips_bandfmt_isfloat( in1 ) ||
vips_bandfmt_isfloat( in2 ) ) {
/* What kind of float?
*/
if( in1 == IM_BANDFMT_DOUBLE || in2 == IM_BANDFMT_DOUBLE )
return( IM_BANDFMT_DOUBLE );
else
return( IM_BANDFMT_FLOAT );
}
else
/* Must be int+int -> int.
*/
return( bandfmt_largest[in1][in2] );
}
int
im__formatalike_vec( IMAGE **in, IMAGE **out, int n )
{
int i;
VipsBandFmt fmt;
g_assert( n >= 1 );
fmt = in[0]->BandFmt;
for( i = 1; i < n; i++ )
fmt = im__format_common( fmt, in[i]->BandFmt );
for( i = 0; i < n; i++ )
if( im_clip2fmt( in[i], out[i], fmt ) )
return( -1 );
return( 0 );
}
int
im__formatalike( IMAGE *in1, IMAGE *in2, IMAGE *out1, IMAGE *out2 )
{
IMAGE *in[2];
IMAGE *out[2];
in[0] = in1;
in[1] = in2;
out[0] = out1;
out[1] = out2;
return( im__formatalike_vec( in, out, 2 ) );
}
/* Make an n-band image. Input 1 or n bands.
*/
int
im__bandup( const char *domain, IMAGE *in, IMAGE *out, int n )
{
IMAGE *bands[256];
int i;
if( in->Bands == n )
return( im_copy( in, out ) );
if( in->Bands != 1 ) {
im_error( domain, _( "not one band or %d bands" ), n );
return( -1 );
}
if( n > 256 || n < 1 ) {
im_error( domain, "%s", _( "bad bands" ) );
return( -1 );
}
for( i = 0; i < n; i++ )
bands[i] = in;
return( im_gbandjoin( bands, out, n ) );
}
int
im__bandalike_vec( const char *domain, IMAGE **in, IMAGE **out, int n )
{
int i;
int max_bands;
g_assert( n >= 1 );
max_bands = in[0]->Bands;
for( i = 1; i < n; i++ )
max_bands = IM_MAX( max_bands, in[i]->Bands );
for( i = 0; i < n; i++ )
if( im__bandup( domain, in[i], out[i], max_bands ) )
return( -1 );
return( 0 );
}
int
im__bandalike( const char *domain,
IMAGE *in1, IMAGE *in2, IMAGE *out1, IMAGE *out2 )
{
IMAGE *in[2];
IMAGE *out[2];
in[0] = in1;
in[1] = in2;
out[0] = out1;
out[1] = out2;
if( im__bandalike_vec( domain, in, out, 2 ) )
return( -1 );
return( 0 );
}
/* The common part of most binary arithmetic, relational and boolean
* operators. We:
*
* - check in and out
* - cast in1 and in2 up to a common format
* - cast the common format to the output format with the supplied table
* - equalise bands
* - run the supplied buffer operation passing one of the up-banded,
* up-casted and up-sized inputs as the first param
*/
int
im__arith_binary( const char *domain,
IMAGE *in1, IMAGE *in2, IMAGE *out,
int format_table[10],
im_wrapmany_fn fn, void *b )
{
IMAGE *t[5];
if( im_piocheck( in1, out ) ||
im_pincheck( in2 ) ||
im_check_bands_1orn( domain, in1, in2 ) ||
im_check_size_same( domain, in1, in2 ) ||
im_check_uncoded( domain, in1 ) ||
im_check_uncoded( domain, in2 ) )
return( -1 );
/* Cast our input images up to a common format and bands.
*/
if( im_open_local_array( out, t, 4, domain, "p" ) ||
im__formatalike( in1, in2, t[0], t[1] ) ||
im__bandalike( domain, t[0], t[1], t[2], t[3] ) )
return( -1 );
/* Generate the output.
*/
if( im_cp_descv( out, t[2], t[3], NULL ) )
return( -1 );
/* What number of bands will we write? Same as up-banded input.
*/
out->Bands = t[2]->Bands;
/* What output type will we write?
*/
out->BandFmt = format_table[t[2]->BandFmt];
/* And process! The buffer function gets one of the input images as a
* sample.
*/
t[4] = NULL;
if( im_wrapmany( t + 2, out, fn, t[2], b ) )
return( -1 );
return( 0 );
}
VipsVector *
im__init_program( VipsVector *vectors[IM_BANDFMT_LAST],
VipsBandFmt format_table[IM_BANDFMT_LAST], VipsBandFmt fmt )
{
int isize = im__sizeof_bandfmt[fmt];
int osize = im__sizeof_bandfmt[format_table[fmt]];
VipsVector *v;
v = vips_vector_new( "binary arith", osize );
vips_vector_source_name( v, "s1", isize );
vips_vector_source_name( v, "s2", isize );
vips_vector_temporary( v, "t1", osize );
vips_vector_temporary( v, "t2", osize );
vectors[fmt] = v;
return( v );
}
void
im__compile_programs( VipsVector *vectors[IM_BANDFMT_LAST] )
{
int fmt;
for( fmt = 0; fmt < IM_BANDFMT_LAST; fmt++ ) {
if( vectors[fmt] &&
!vips_vector_compile( vectors[fmt] ) )
IM_FREEF( vips_vector_free, vectors[fmt] );
}
#ifdef DEBUG
printf( "im__compile_programs: " );
for( fmt = 0; fmt < IM_BANDFMT_LAST; fmt++ )
if( vectors[fmt] )
printf( "%s ", im_BandFmt2char( fmt ) );
printf( "\n" );
#endif /*DEBUG*/
}
int
im_add( IMAGE *in1, IMAGE *in2, IMAGE *out )
{
return( vips_call( "add", in1, in2, out, NULL ) );
}

4
libvips/include/vips/object.h
View File

@ -142,10 +142,10 @@ typedef struct _VipsArgumentInstance {
*/
gboolean assigned;
/* If this is an output argument, keep the id of our "destroy" handler
/* If this is an output argument, keep the id of our "close" handler
* here.
*/
gulong destroy_id;
gulong close_id;
} VipsArgumentInstance;
/* Need to look up our VipsArgument structs from a pspec. Just hash the

4
libvips/include/vips/private.h
View File

@ -162,6 +162,10 @@ int vips_region_fill( struct _VipsRegion *reg,
*/
int vips__image_write_prepare( struct _VipsImage *image );
/* Start up various packages.
*/
void vips_arithmetic_operation_init( void );
#ifdef __cplusplus
}
#endif /*__cplusplus*/

4
libvips/iofuncs/init.c
View File

@ -217,6 +217,10 @@ vips_init( const char *argv0 )
vips__interpolate_init();
im__format_init();
/* Start up packages.
*/
vips_arithmetic_operation_init();
/* Load up any plugins in the vips libdir. We don't error on failure,
* it's too annoying to have VIPS refuse to start because of a broken
* plugin.

32
libvips/iofuncs/object.c
View File

@ -195,10 +195,10 @@ vips_object_rewind( VipsObject *object )
static void
vips_argument_instance_free( VipsArgumentInstance *argument_instance )
{
if( argument_instance->destroy_id ) {
if( argument_instance->close_id ) {
g_signal_handler_disconnect( argument_instance->object,
argument_instance->destroy_id );
argument_instance->destroy_id = 0;
argument_instance->close_id );
argument_instance->close_id = 0;
}
g_free( argument_instance );
}
@ -281,7 +281,7 @@ vips_argument_init2( VipsObject *object, GParamSpec *pspec,
argument->pspec = ((VipsArgument *) argument_class)->pspec;
argument_instance->object = object;
argument_instance->assigned = FALSE;
argument_instance->destroy_id = 0;
argument_instance->close_id = 0;
vips_argument_table_replace( object->argument_table, argument );
@ -360,15 +360,15 @@ vips_object_clear_object( VipsObject *object, GParamSpec *pspec )
#endif /*DEBUG_REF*/
/* The object reffed us. Stop listening link to the
* object's "destroy" signal. We can come here from
* object being destroyed, in which case the handler
* object's "close" signal. We can come here from
* object being closed, in which case the handler
* will already have been disconnected for us.
*/
if( g_signal_handler_is_connected( object,
argument_instance->destroy_id ) )
argument_instance->close_id ) )
g_signal_handler_disconnect( object,
argument_instance->destroy_id );
argument_instance->destroy_id = 0;
argument_instance->close_id );
argument_instance->close_id = 0;
*member = NULL;
g_object_unref( object );
@ -469,13 +469,13 @@ vips_object_finalize( GObject *gobject )
}
static void
vips_object_arg_destroy( GObject *argument,
vips_object_arg_close( GObject *argument,
VipsArgumentInstance *argument_instance )
{
VipsObject *object = argument_instance->object;
GParamSpec *pspec = ((VipsArgument *) argument_instance)->pspec;
/* Argument had reffed us ... now it's being destroyed, so we unref.
/* Argument had reffed us ... now it's being closed, so we unref.
*/
vips_object_clear_object( object, pspec );
}
@ -524,9 +524,9 @@ vips_object_set_object( VipsObject *object, GParamSpec *pspec,
/* The argument reffs us.
*/
g_object_ref( object );
argument_instance->destroy_id =
g_signal_connect( *member, "destroy",
G_CALLBACK( vips_object_arg_destroy ),
argument_instance->close_id =
g_signal_connect( *member, "close",
G_CALLBACK( vips_object_arg_close ),
argument_instance );
}
}
@ -964,7 +964,7 @@ vips_object_class_install_argument( VipsObjectClass *object_class,
vips_argument_table_replace( object_class->argument_table,
(VipsArgument *) argument_class );
object_class->argument_table_traverse = g_slist_append(
object_class->argument_table_traverse = g_slist_prepend(
object_class->argument_table_traverse, argument_class );
}
@ -1361,7 +1361,7 @@ vips_type_find( const char *basename, const char *nickname )
{
VipsObjectClass *class;
if( !(class = vips_class_find( "VipsInterpolate", nickname )) )
if( !(class = vips_class_find( "VipsObject", nickname )) )
return( 0 );
/* FIXME ... we've not supposed to use G_TYPE_FROM_CLASS(), I think.

79
libvips/iofuncs/operation.c
View File

@ -28,8 +28,8 @@
*/
/*
#define DEBUG
*/
#define VIPS_DEBUG
#ifdef HAVE_CONFIG_H
#include <config.h>
@ -42,6 +42,7 @@
#include <math.h>
#include <vips/vips.h>
#include <vips/debug.h>
#include <gobject/gvaluecollector.h>
@ -90,6 +91,30 @@ vips_operation_print_arg( VipsObject *object, GParamSpec *pspec,
return( NULL );
}
#ifdef VIPS_DEBUG
static void *
vips_operation_call_argument( VipsObject *object, GParamSpec *pspec,
VipsArgumentClass *argument_class,
VipsArgumentInstance *argument_instance )
{
VipsArgument *argument = (VipsArgument *) argument_class;
printf( " %s: offset = %d ",
argument->pspec->name, argument_class->offset );
if( argument_class->flags & VIPS_ARGUMENT_REQUIRED )
printf ("required " );
if( argument_class->flags & VIPS_ARGUMENT_CONSTRUCT )
printf ("construct " );
if( argument_class->flags & VIPS_ARGUMENT_SET_ONCE )
printf ("set-once " );
if( argument_instance->assigned )
printf ("assigned " );
printf( "\n" );
return( NULL );
}
#endif /*VIPS_DEBUG*/
static void
vips_operation_print( VipsObject *object, VipsBuf *buf )
{
@ -97,6 +122,12 @@ vips_operation_print( VipsObject *object, VipsBuf *buf )
VipsObjectClass *object_class = VIPS_OBJECT_GET_CLASS( object );
VipsOperationPrint print;
#ifdef VIPS_DEBUG
printf( "%s args:\n", object_class->nickname );
vips_argument_map( VIPS_OBJECT( operation ),
(VipsArgumentMapFn) vips_operation_call_argument, NULL, NULL );
#endif /*VIPS_DEBUG*/
/* First pass through args: show the required names.
*/
vips_buf_appendf( buf, "VipsOperation.%s (", object_class->nickname );
@ -151,30 +182,6 @@ vips_operation_init( VipsOperation *operation )
*/
}
#ifdef DEBUG
static void *
vips_operation_call_argument( VipsObject *object, GParamSpec *pspec,
VipsArgumentClass *argument_class,
VipsArgumentInstance *argument_instance )
{
VipsArgument *argument = (VipsArgument *) argument_class;
printf( " %s: offset=%d ",
argument->pspec->name, argument_class->offset );
if( argument_class->flags & VIPS_ARGUMENT_REQUIRED )
printf ("required " );
if( argument_class->flags & VIPS_ARGUMENT_CONSTRUCT )
printf ("construct " );
if( argument_class->flags & VIPS_ARGUMENT_SET_ONCE )
printf ("set-once " );
if( argument_instance->assigned )
printf ("assigned " );
printf( "\n" );
return( NULL );
}
#endif /*DEBUG*/
int
vips_operation_call_valist( VipsOperation *operation, va_list ap )
{
@ -221,6 +228,17 @@ vips_operation_call_valist( VipsOperation *operation, va_list ap )
return( -1 );
}
#ifdef VIPS_DEBUG
{
char *str;
str = g_strdup_value_contents( &value );
VIPS_DEBUG_MSG( "\t%s = %s\n",
pspec->name, str );
g_free( str );
}
#endif /*VIPS_DEBUG*/
g_object_set_property( G_OBJECT( operation ),
pspec->name, &value );
g_value_unset( &value );
@ -247,7 +265,7 @@ vips_operation_new( const char *name )
if( !(type = vips_type_find( "VipsOperation", name )) )
return( NULL );
return( VIPS_OPERATION( vips_object_new( type, NULL, NULL, NULL ) ) );
return( VIPS_OPERATION( g_object_new( type, NULL ) ) );
}
int
@ -257,13 +275,16 @@ vips_call( const char *operation_name, ... )
VipsOperation *operation;
int result;
#ifdef DEBUG
printf( "vips_call: starting for %s ...\n", operation_name );
#endif /*DEBUG*/
VIPS_DEBUG_MSG( "vips_call: starting for %s ...\n", operation_name );
if( !(operation = vips_operation_new( operation_name ) ) )
return( -1 );
#ifdef VIPS_DEBUG
VIPS_DEBUG_MSG( "where:\n" );
vips_object_print( VIPS_OBJECT( operation ) );
#endif /*VIPS_DEBUG*/
va_start( ap, operation_name );
result = vips_operation_call_valist( operation, ap );
va_end( ap );