263 lines
6.3 KiB
C
263 lines
6.3 KiB
C
/* Function dispatch tables for mosaicing.
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*
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* J. Cupitt, 23/2/95
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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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#include <vips/internal.h>
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#include <vips/transform.h>
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#ifdef WITH_DMALLOC
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#include <dmalloc.h>
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#endif /*WITH_DMALLOC*/
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/**
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* SECTION: resample
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* @short_description: shrink, expand, rotate with a choice of interpolators
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* @stability: Stable
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* @include: vips/vips.h
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*
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* Resample an image in various ways, using a #VipsInterpolator to generate
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* intermediate values.
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*/
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/* Args to im_rightshift_size.
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*/
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static im_arg_desc rightshift_size_args[] = {
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IM_INPUT_IMAGE ("in"),
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IM_OUTPUT_IMAGE ("out"),
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IM_INPUT_INT ("xshift"),
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IM_INPUT_INT ("yshift"),
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IM_INPUT_INT ("band_fmt")
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};
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/* Call im_rightshift_size via arg vector.
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*/
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static int
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rightshift_size_vec (im_object * argv)
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{
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IMAGE *in = (IMAGE *) argv[0];
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IMAGE *out = (IMAGE *) argv[1];
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int *xshift = (int *) argv[2];
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int *yshift = (int *) argv[3];
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int *band_fmt = (int *) argv[4];
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return im_rightshift_size (in, out, *xshift, *yshift, *band_fmt );
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}
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/* Description of im_rightshift_size.
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*/
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static im_function rightshift_size_desc = {
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"im_rightshift_size", /* Name */
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"decrease size by a power-of-two factor",
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IM_FN_PIO | IM_FN_TRANSFORM, /* Flags */
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rightshift_size_vec, /* Dispatch function */
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IM_NUMBER (rightshift_size_args), /* Size of arg list */
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rightshift_size_args /* Arg list */
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};
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/* affinei args
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*/
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static im_arg_desc affinei_args[] = {
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IM_INPUT_IMAGE( "in" ),
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IM_OUTPUT_IMAGE( "out" ),
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IM_INPUT_INTERPOLATE( "interpolate" ),
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IM_INPUT_DOUBLE( "a" ),
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IM_INPUT_DOUBLE( "b" ),
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IM_INPUT_DOUBLE( "c" ),
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IM_INPUT_DOUBLE( "d" ),
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IM_INPUT_DOUBLE( "dx" ),
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IM_INPUT_DOUBLE( "dy" ),
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IM_INPUT_INT( "x" ),
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IM_INPUT_INT( "y" ),
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IM_INPUT_INT( "w" ),
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IM_INPUT_INT( "h" )
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};
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/* Call im_affinei via arg vector.
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*/
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static int
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affinei_vec( im_object *argv )
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{
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VipsInterpolate *interpolate = VIPS_INTERPOLATE( argv[2] );
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double a = *((double *) argv[3]);
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double b = *((double *) argv[4]);
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double c = *((double *) argv[5]);
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double d = *((double *) argv[6]);
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double dx = *((double *) argv[7]);
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double dy = *((double *) argv[8]);
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int x = *((int *) argv[9]);
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int y = *((int *) argv[10]);
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int w = *((int *) argv[11]);
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int h = *((int *) argv[12]);
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return( im_affinei( argv[0], argv[1], interpolate,
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a, b, c, d, dx, dy, x, y, w, h ) );
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}
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/* Description of im_affinei.
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*/
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static im_function affinei_desc = {
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"im_affinei", /* Name */
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"affine transform",
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IM_FN_TRANSFORM | IM_FN_PIO, /* Flags */
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affinei_vec, /* Dispatch function */
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IM_NUMBER( affinei_args ), /* Size of arg list */
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affinei_args /* Arg list */
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};
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/* affinei_all args
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*/
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static im_arg_desc affinei_all_args[] = {
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IM_INPUT_IMAGE( "in" ),
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IM_OUTPUT_IMAGE( "out" ),
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IM_INPUT_INTERPOLATE( "interpolate" ),
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IM_INPUT_DOUBLE( "a" ),
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IM_INPUT_DOUBLE( "b" ),
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IM_INPUT_DOUBLE( "c" ),
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IM_INPUT_DOUBLE( "d" ),
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IM_INPUT_DOUBLE( "dx" ),
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IM_INPUT_DOUBLE( "dy" )
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};
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/* Call im_affinei_all via arg vector.
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*/
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static int
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affinei_all_vec( im_object *argv )
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{
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VipsInterpolate *interpolate = VIPS_INTERPOLATE( argv[2] );
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double a = *((double *) argv[3]);
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double b = *((double *) argv[4]);
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double c = *((double *) argv[5]);
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double d = *((double *) argv[6]);
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double dx = *((double *) argv[7]);
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double dy = *((double *) argv[8]);
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return( im_affinei_all( argv[0], argv[1], interpolate,
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a, b, c, d, dx, dy ) );
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}
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/* Description of im_affinei_all.
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*/
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static im_function affinei_all_desc = {
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"im_affinei_all", /* Name */
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"affine transform of whole image",
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IM_FN_TRANSFORM | IM_FN_PIO, /* Flags */
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affinei_all_vec, /* Dispatch function */
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IM_NUMBER( affinei_all_args ), /* Size of arg list */
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affinei_all_args /* Arg list */
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};
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/* Args for im_shrink.
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*/
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static im_arg_desc shrink_args[] = {
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IM_INPUT_IMAGE( "in" ),
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IM_OUTPUT_IMAGE( "out" ),
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IM_INPUT_DOUBLE( "xfac" ),
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IM_INPUT_DOUBLE( "yfac" )
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};
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/* Call im_shrink via arg vector.
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*/
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static int
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shrink_vec( im_object *argv )
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{
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double xshrink = *((double *) argv[2]);
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double yshrink = *((double *) argv[3]);
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return( im_shrink( argv[0], argv[1], xshrink, yshrink ) );
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}
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/* Description of im_shrink.
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*/
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static im_function shrink_desc = {
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"im_shrink", /* Name */
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"shrink image by xfac, yfac times",
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IM_FN_TRANSFORM | IM_FN_PIO, /* Flags */
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shrink_vec, /* Dispatch function */
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IM_NUMBER( shrink_args ), /* Size of arg list */
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shrink_args /* Arg list */
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};
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/* Args to im_stretch3.
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*/
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static im_arg_desc stretch3_args[] = {
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IM_INPUT_IMAGE( "in" ),
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IM_OUTPUT_IMAGE( "out" ),
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IM_INPUT_DOUBLE( "xdisp" ),
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IM_INPUT_DOUBLE( "ydisp" )
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};
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/* Call im_stretch3 via arg vector.
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*/
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static int
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stretch3_vec( im_object *argv )
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{
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double xdisp = *((int *) argv[2]);
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double ydisp = *((int *) argv[3]);
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return( im_stretch3( argv[0], argv[1], xdisp, ydisp ) );
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}
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/* Description of im_stretch3.
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*/
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static im_function stretch3_desc = {
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"im_stretch3", /* Name */
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"stretch 3%, sub-pixel displace by xdisp/ydisp",
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IM_FN_PIO, /* Flags */
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stretch3_vec, /* Dispatch function */
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IM_NUMBER( stretch3_args ), /* Size of arg list */
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stretch3_args /* Arg list */
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};
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/* Package up all these functions.
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*/
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static im_function *resample_list[] = {
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&rightshift_size_desc,
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&shrink_desc,
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&stretch3_desc,
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&affinei_desc,
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&affinei_all_desc
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};
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/* Package of functions.
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*/
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im_package im__resample = {
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"resample",
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IM_NUMBER( resample_list ),
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resample_list
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};
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