816 lines
18 KiB
C
816 lines
18 KiB
C
/* cast an image to a numerical format
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*
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* Author: Nicos Dessipris
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* Written on: 07/03/1991
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* Modified on:
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* 04/05/1992 JC
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* - works for char, uchar too
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* - floating point code removed from integer clip operations
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* - uses nint() instead of own rounding code
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* - calculated the number of >255 clips for float/double input
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* incorrectly
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* - rejects complex input correctly now
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* 27/4/93 JC
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* - adapted to work with partial images
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* - nint() removed, now just +0.5
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* - im_warning code removed
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* 30/6/93 JC
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* - adapted for partial v2
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* 31/8/93 JC
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* - now detects and prints over/underflows
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* 27/10/93 JC
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* - unsigned integer clips now faster!
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* - falls back to im_copy() correctly
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* 5/5/94 JC
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* - switched to rint()
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* 18/8/94 JC
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* - now uses evalend callback
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* 9/5/95 JC
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* - now does complex too
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* 11/7/95 JC
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* - now uses IM_RINT() macro
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* 10/3/01 JC
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* - slightly faster and simpler
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* - generalised to im_clip2fmt(), all other clippers now just call
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* this
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* 21/4/04 JC
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* - now does floor(), not rint() ... you'll need to round yourself
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* before calling this if you want round-to-nearest
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* 7/11/07
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* - use new evalstart/evalend system
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* 26/8/08
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* - oops, complex->complex conversion was broken
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* 27/1/10
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* - modernised
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* - gtk-doc
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* 27/10/11
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* - redone as a class
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* 10/4/12
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* - cast to uint now removes <0 values
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* 11/2/15
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* - add @shift option
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* 1/3/16
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* - better behaviour for shift of non-int types (thanks apacheark)
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* 14/11/18
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* - revise for better uint/int clipping [erdmann]
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* - remove old overflow/underflow detect
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* 8/12/20
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* - fix range clip in int32 -> unsigned casts [ewelot]
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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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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 VIPS_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 <glib/gi18n-lib.h>
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#include <stdio.h>
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#include <string.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 <vips/internal.h>
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#include <vips/debug.h>
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#include "pconversion.h"
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typedef struct _VipsCast {
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VipsConversion parent_instance;
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VipsImage *in;
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VipsBandFormat format;
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gboolean shift;
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} VipsCast;
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typedef VipsConversionClass VipsCastClass;
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G_DEFINE_TYPE( VipsCast, vips_cast, VIPS_TYPE_CONVERSION );
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/* Cast down from an int.
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*/
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#define CAST_UCHAR( X ) VIPS_CLIP( 0, (X), UCHAR_MAX )
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#define CAST_CHAR( X ) VIPS_CLIP( SCHAR_MIN, (X), SCHAR_MAX )
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#define CAST_USHORT( X ) VIPS_CLIP( 0, (X), USHRT_MAX )
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#define CAST_SHORT( X ) VIPS_CLIP( SHRT_MIN, (X), SHRT_MAX )
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/* These cast down from gint64 to uint32 or int32.
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*/
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#define CAST_UINT( X ) VIPS_CLIP( 0, (X), UINT_MAX )
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#define CAST_INT( X ) VIPS_CLIP( INT_MIN, (X), INT_MAX )
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/* Rightshift an integer type, ie. sizeof(ITYPE) >= sizeof(OTYPE).
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*
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* If we're casting between two formats of the same size (eg. ushort to
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* short), sizes can be equal.
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*/
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#define SHIFT_RIGHT( ITYPE, OTYPE ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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int n = ((int) sizeof( ITYPE ) << 3) - ((int) sizeof( OTYPE ) << 3); \
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\
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g_assert( sizeof( ITYPE ) >= sizeof( OTYPE ) ); \
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\
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for( x = 0; x < sz; x++ ) \
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q[x] = p[x] >> n; \
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}
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/* Leftshift an integer type, ie. sizeof(ITYPE) <= sizeof(OTYPE). We need to
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* copy the bottom bit up into the fresh new bits.
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*/
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#define SHIFT_LEFT( ITYPE, OTYPE ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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int n = ((int) sizeof( OTYPE ) << 3) - ((int) sizeof( ITYPE ) << 3); \
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\
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g_assert( sizeof( ITYPE ) <= sizeof( OTYPE ) ); \
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\
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for( x = 0; x < sz; x++ ) \
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q[x] = (p[x] << n) | (((p[x] & 1) << n) - (p[x] & 1)); \
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}
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#define SHIFT_LEFT_SIGNED( ITYPE, OTYPE ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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int n = ((int) sizeof( OTYPE ) << 3) - ((int) sizeof( ITYPE ) << 3); \
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\
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g_assert( sizeof( ITYPE ) <= sizeof( OTYPE ) ); \
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\
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for( x = 0; x < sz; x++ ) \
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q[x] = VIPS_LSHIFT_INT( p[x], n ) | \
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(((p[x] & 1) << n) - (p[x] & 1)); \
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}
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/* Cast int types to an int type. We need to pass in the type of the
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* intermediate value, either int or int64, or we'll have problems with uint
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* sources turning -ve.
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*/
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#define CAST_INT_INT( ITYPE, OTYPE, TEMP, CAST ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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\
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for( x = 0; x < sz; x++ ) { \
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TEMP t = (TEMP) p[x]; \
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\
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q[x] = CAST( t ); \
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} \
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}
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/* Int to int handling.
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*/
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#define INT_INT( ITYPE, OTYPE, TEMP, CAST ) { \
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if( cast->shift && \
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sizeof( ITYPE ) > sizeof( OTYPE ) ) { \
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SHIFT_RIGHT( ITYPE, OTYPE ); \
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} \
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else if( cast->shift ) { \
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SHIFT_LEFT( ITYPE, OTYPE ); \
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} \
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else { \
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CAST_INT_INT( ITYPE, OTYPE, TEMP, CAST ); \
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} \
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}
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/* Int to int handling for signed int types.
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*/
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#define INT_INT_SIGNED( ITYPE, OTYPE, TEMP, CAST ) { \
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if( cast->shift && \
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sizeof( ITYPE ) > sizeof( OTYPE ) ) { \
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SHIFT_RIGHT( ITYPE, OTYPE ); \
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} \
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else if( cast->shift ) { \
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SHIFT_LEFT_SIGNED( ITYPE, OTYPE ); \
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} \
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else { \
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CAST_INT_INT( ITYPE, OTYPE, TEMP, CAST ); \
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} \
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}
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/* Cast float types to an int type.
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*
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* We need to do the range clip as double or we'll get errors for int max,
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* since that can't be represented as a 32-bit float.
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*/
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#define CAST_FLOAT_INT( ITYPE, OTYPE, TEMP, CAST ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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\
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for( x = 0; x < sz; x++ ) \
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q[x] = CAST( (double) p[x] ); \
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}
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/* Cast complex types to an int type. Just take the real part.
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*
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* We need to do the range clip as double or we'll get errors for int max,
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* since that can't be represented as a 32-bit float.
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*/
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#define CAST_COMPLEX_INT( ITYPE, OTYPE, TEMP, CAST ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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\
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for( x = 0; x < sz; x++ ) { \
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q[x] = CAST( (double) p[0] ); \
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p += 2; \
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} \
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}
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/* Cast non-complex types to a float type.
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*/
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#define CAST_REAL_FLOAT( ITYPE, OTYPE ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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\
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for( x = 0; x < sz; x++ ) \
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q[x] = p[x]; \
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}
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/* Cast complex types to a float type ... just take real.
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*/
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#define CAST_COMPLEX_FLOAT( ITYPE, OTYPE ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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\
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for( x = 0; x < sz; x++ ) { \
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q[x] = p[0]; \
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p += 2; \
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} \
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}
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/* Cast any non-complex to a complex type ... set imaginary to zero.
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*/
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#define CAST_REAL_COMPLEX( ITYPE, OTYPE ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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\
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for( x = 0; x < sz; x++ ) { \
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q[0] = p[x]; \
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q[1] = 0.0; \
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q += 2; \
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} \
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}
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/* Cast any complex to a complex type.
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*/
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#define CAST_COMPLEX_COMPLEX( ITYPE, OTYPE ) { \
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ITYPE * restrict p = (ITYPE *) in; \
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OTYPE * restrict q = (OTYPE *) out; \
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\
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for( x = 0; x < sz; x++ ) { \
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q[0] = p[0]; \
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q[1] = p[1]; \
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p += 2; \
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q += 2; \
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} \
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}
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#define BAND_SWITCH_INNER( ITYPE, INT, FLOAT, COMPLEX ) { \
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switch( conversion->out->BandFmt ) { \
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case VIPS_FORMAT_UCHAR: \
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INT( ITYPE, unsigned char, int, CAST_UCHAR ); \
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break; \
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\
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case VIPS_FORMAT_CHAR: \
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INT( ITYPE, signed char, int, CAST_CHAR ); \
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break; \
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\
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case VIPS_FORMAT_USHORT: \
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INT( ITYPE, unsigned short, int, CAST_USHORT ); \
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break; \
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\
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case VIPS_FORMAT_SHORT: \
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INT( ITYPE, signed short, int, CAST_SHORT ); \
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break; \
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\
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case VIPS_FORMAT_UINT: \
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INT( ITYPE, unsigned int, gint64, CAST_UINT ); \
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break; \
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\
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case VIPS_FORMAT_INT: \
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INT( ITYPE, signed int, gint64, CAST_INT ); \
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break; \
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\
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case VIPS_FORMAT_FLOAT: \
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FLOAT( ITYPE, float ); \
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break; \
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\
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case VIPS_FORMAT_DOUBLE: \
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FLOAT( ITYPE, double ); \
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break; \
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\
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case VIPS_FORMAT_COMPLEX: \
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COMPLEX( ITYPE, float ); \
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break; \
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\
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case VIPS_FORMAT_DPCOMPLEX: \
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COMPLEX( ITYPE, double ); \
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break; \
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\
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default: \
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g_assert_not_reached(); \
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} \
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}
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static int
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vips_cast_gen( VipsRegion *or, void *vseq, void *a, void *b, gboolean *stop )
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{
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VipsRegion *ir = (VipsRegion *) vseq;
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VipsCast *cast = (VipsCast *) b;
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VipsConversion *conversion = (VipsConversion *) b;
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VipsRect *r = &or->valid;
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int sz = VIPS_REGION_N_ELEMENTS( or );
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int x, y;
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if( vips_region_prepare( ir, r ) )
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return( -1 );
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VIPS_GATE_START( "vips_cast_gen: work" );
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for( y = 0; y < r->height; y++ ) {
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VipsPel *in = VIPS_REGION_ADDR( ir, r->left, r->top + y );
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VipsPel *out = VIPS_REGION_ADDR( or, r->left, r->top + y );
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switch( ir->im->BandFmt ) {
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case VIPS_FORMAT_UCHAR:
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BAND_SWITCH_INNER( unsigned char,
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INT_INT,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_CHAR:
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BAND_SWITCH_INNER( signed char,
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INT_INT_SIGNED,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_USHORT:
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BAND_SWITCH_INNER( unsigned short,
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INT_INT,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_SHORT:
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BAND_SWITCH_INNER( signed short,
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INT_INT_SIGNED,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_UINT:
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BAND_SWITCH_INNER( unsigned int,
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INT_INT,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_INT:
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BAND_SWITCH_INNER( signed int,
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INT_INT_SIGNED,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_FLOAT:
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BAND_SWITCH_INNER( float,
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CAST_FLOAT_INT,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_DOUBLE:
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BAND_SWITCH_INNER( double,
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CAST_FLOAT_INT,
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CAST_REAL_FLOAT,
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CAST_REAL_COMPLEX );
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break;
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case VIPS_FORMAT_COMPLEX:
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BAND_SWITCH_INNER( float,
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CAST_COMPLEX_INT,
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CAST_COMPLEX_FLOAT,
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CAST_COMPLEX_COMPLEX );
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break;
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case VIPS_FORMAT_DPCOMPLEX:
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BAND_SWITCH_INNER( double,
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CAST_COMPLEX_INT,
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CAST_COMPLEX_FLOAT,
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CAST_COMPLEX_COMPLEX );
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break;
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default:
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g_assert_not_reached();
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}
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}
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VIPS_GATE_STOP( "vips_cast_gen: work" );
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return( 0 );
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}
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static int
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vips_cast_build( VipsObject *object )
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{
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VipsConversion *conversion = VIPS_CONVERSION( object );
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VipsCast *cast = (VipsCast *) object;
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VipsImage **t = (VipsImage **)
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vips_object_local_array( object, 2 );
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VipsImage *in;
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if( VIPS_OBJECT_CLASS( vips_cast_parent_class )->build( object ) )
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return( -1 );
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in = cast->in;
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/* Trivial case: fall back to copy().
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*/
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if( in->BandFmt == cast->format )
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return( vips_image_write( in, conversion->out ) );
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if( vips_image_decode( in, &t[0] ) )
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return( -1 );
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in = t[0];
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/* If @shift is on but we're not in an int format and we're going to
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* an int format, we need to cast to int first. For example, what
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* about a float image tagged as rgb16 being cast to uint8? We need
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* to cast to ushort before we do the final cast to uint8.
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*/
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if( cast->shift &&
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!vips_band_format_isint( in->BandFmt ) &&
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vips_band_format_isint( cast->format ) ) {
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if( vips_cast( in, &t[1],
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vips_image_guess_format( in ), NULL ) )
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return( -1 );
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in = t[1];
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}
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if( vips_image_pipelinev( conversion->out,
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VIPS_DEMAND_STYLE_THINSTRIP, in, NULL ) )
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return( -1 );
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conversion->out->BandFmt = cast->format;
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if( vips_image_generate( conversion->out,
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vips_start_one, vips_cast_gen, vips_stop_one,
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in, cast ) )
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return( -1 );
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return( 0 );
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}
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static void
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vips_cast_class_init( VipsCastClass *class )
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS( class );
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VipsObjectClass *vobject_class = VIPS_OBJECT_CLASS( class );
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VipsOperationClass *operation_class = VIPS_OPERATION_CLASS( class );
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VIPS_DEBUG_MSG( "vips_cast_class_init\n" );
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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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vobject_class->nickname = "cast";
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vobject_class->description = _( "cast an image" );
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vobject_class->build = vips_cast_build;
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operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
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VIPS_ARG_IMAGE( class, "in", 1,
|
|
_( "Input" ),
|
|
_( "Input image" ),
|
|
VIPS_ARGUMENT_REQUIRED_INPUT,
|
|
G_STRUCT_OFFSET( VipsCast, in ) );
|
|
|
|
VIPS_ARG_ENUM( class, "format", 6,
|
|
_( "Format" ),
|
|
_( "Format to cast to" ),
|
|
VIPS_ARGUMENT_REQUIRED_INPUT,
|
|
G_STRUCT_OFFSET( VipsCast, format ),
|
|
VIPS_TYPE_BAND_FORMAT, VIPS_FORMAT_UCHAR );
|
|
|
|
VIPS_ARG_BOOL( class, "shift", 7,
|
|
_( "Shift" ),
|
|
_( "Shift integer values up and down" ),
|
|
VIPS_ARGUMENT_OPTIONAL_INPUT,
|
|
G_STRUCT_OFFSET( VipsCast, shift ),
|
|
FALSE );
|
|
}
|
|
|
|
static void
|
|
vips_cast_init( VipsCast *cast )
|
|
{
|
|
}
|
|
|
|
static int
|
|
vips_castv( VipsImage *in, VipsImage **out, VipsBandFormat format, va_list ap )
|
|
{
|
|
return( vips_call_split( "cast", ap, in, out, format ) );
|
|
}
|
|
|
|
/**
|
|
* vips_cast: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @format: format to convert to
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Optional arguments:
|
|
*
|
|
* * @shift: %gboolean, integer values are shifted
|
|
*
|
|
* Convert @in to @format. You can convert between any pair of formats.
|
|
* Floats are truncated (not rounded). Out of range values are clipped.
|
|
*
|
|
* Casting from complex to real returns the real part.
|
|
*
|
|
* If @shift is %TRUE, integer values are shifted up and down. For example,
|
|
* casting from unsigned 8 bit to unsigned 16 bit would
|
|
* shift every value left by 8 bits. The bottom bit is copied into the new
|
|
* bits, so 255 would become 65535.
|
|
*
|
|
* See also: vips_scale(), vips_complexform(), vips_real(), vips_imag(),
|
|
* vips_cast_uchar(), vips_msb().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast( VipsImage *in, VipsImage **out, VipsBandFormat format, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, format );
|
|
result = vips_castv( in, out, format, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_uchar: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_UCHAR. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_uchar( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_UCHAR, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_char: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_CHAR. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_char( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_CHAR, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_ushort: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_USHORT. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_ushort( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_USHORT, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_short: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_SHORT. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_short( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_SHORT, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_uint: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_UINT. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_uint( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_UINT, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_int: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_INT. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_int( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_INT, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_float: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_FLOAT. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_float( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_FLOAT, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_double: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_DOUBLE. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_double( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_DOUBLE, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_complex: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_COMPLEX. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_complex( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_COMPLEX, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_cast_dpcomplex: (method)
|
|
* @in: input image
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Convert @in to #VIPS_FORMAT_DPCOMPLEX. See vips_cast().
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int
|
|
vips_cast_dpcomplex( VipsImage *in, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_castv( in, out, VIPS_FORMAT_DPCOMPLEX, ap );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|