| /* @(#) Generalised addition of two vasari images. Result (double or float) |
| * @(#)depends on inputs |
| * @(#) Function im_gfadd() assumes that the both input files |
| * @(#) are either memory mapped or in a buffer. |
| * @(#) Images must have the same no of bands and can be of any type |
| * @(#) No check for overflow is carried out. If in doubt use im_clip2... |
| * @(#) Result at eachpoint is a*in1 + b*in2 + c |
| * @(#) |
| * @(#) int im_gfadd(a, in1, b, in2, c, out) |
| * @(#) double a, b, c; |
| * @(#) IMAGE *in1, *in2, *out; |
| * @(#) |
| * @(#) Returns 0 on success and -1 on error |
| * @(#) |
| * |
| * Copyright: 1990, N. Dessipris. |
| * |
| * Author: Nicos Dessipris |
| * Written on: 02/05/1990 |
| * Modified on: |
| * 15/6/93 J.Cupitt |
| * - externs removed |
| * - casts added to please ANSI C |
| * - includes rationalised |
| */ |
| |
| /* |
| |
| 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> |
| |
| #ifdef WITH_DMALLOC |
| #include <dmalloc.h> |
| #endif /*WITH_DMALLOC*/ |
| |
| /* uchar char ushort short uint int float double */ |
| static int array[8][8] = { |
| /* uchar */ { 0, 0, 0, 0, 0, 0, 0, 1 }, |
| /* char */ { 0, 0, 0, 0, 0, 0, 0, 1 }, |
| /* ushort */ { 0, 0, 0, 0, 0, 0, 0, 1 }, |
| /* short */ { 0, 0, 0, 0, 0, 0, 0, 1 }, |
| /* uint */ { 0, 0, 0, 0, 0, 0, 0, 1 }, |
| /* int */ { 0, 0, 0, 0, 0, 0, 0, 1 }, |
| /* float */ { 0, 0, 0, 0, 0, 0, 0, 1 }, |
| /* double */ { 1, 1, 1, 1, 1, 1, 1, 1 } |
| }; |
| |
| #define select_outdouble(IN2, OUT)\ |
| switch(tmp1->BandFmt) {\ |
| case IM_BANDFMT_DOUBLE: loop(double, IN2, OUT); break;\ |
| default: im_error("im_gfadd","Wrong tmp1 format(d)");\ |
| free( line); return( -1 );\ |
| } |
| |
| #define outfloat_2uchar(IN2, OUT)\ |
| case IM_BANDFMT_UCHAR: loop(unsigned char, IN2, OUT); break;\ |
| case IM_BANDFMT_CHAR: loop(signed char, IN2, OUT); break;\ |
| case IM_BANDFMT_USHORT: loop(unsigned short, IN2, OUT); break;\ |
| case IM_BANDFMT_SHORT: loop(signed short, IN2, OUT); break;\ |
| case IM_BANDFMT_UINT: loop(unsigned int, IN2, OUT); break;\ |
| case IM_BANDFMT_INT: loop(signed int, IN2, OUT); break;\ |
| case IM_BANDFMT_FLOAT: loop(float, IN2, OUT); break; |
| |
| #define outfloat_2char(IN2, OUT)\ |
| case IM_BANDFMT_CHAR: loop(signed char, IN2, OUT); break;\ |
| case IM_BANDFMT_USHORT: loop(unsigned short, IN2, OUT); break;\ |
| case IM_BANDFMT_SHORT: loop(signed short, IN2, OUT); break;\ |
| case IM_BANDFMT_UINT: loop(unsigned int, IN2, OUT); break;\ |
| case IM_BANDFMT_INT: loop(signed int, IN2, OUT); break;\ |
| case IM_BANDFMT_FLOAT: loop(float, IN2, OUT); break; |
| |
| #define outfloat_2ushort(IN2, OUT)\ |
| case IM_BANDFMT_USHORT: loop(unsigned short, IN2, OUT); break;\ |
| case IM_BANDFMT_SHORT: loop(signed short, IN2, OUT); break;\ |
| case IM_BANDFMT_UINT: loop(unsigned int, IN2, OUT); break;\ |
| case IM_BANDFMT_INT: loop(signed int, IN2, OUT); break;\ |
| case IM_BANDFMT_FLOAT: loop(float, IN2, OUT); break; |
| |
| #define outfloat_2short(IN2, OUT)\ |
| case IM_BANDFMT_SHORT: loop(signed short, IN2, OUT); break;\ |
| case IM_BANDFMT_UINT: loop(unsigned int, IN2, OUT); break;\ |
| case IM_BANDFMT_INT: loop(signed int, IN2, OUT); break;\ |
| case IM_BANDFMT_FLOAT: loop(float, IN2, OUT); break; |
| |
| #define outfloat_2uint(IN2, OUT)\ |
| case IM_BANDFMT_UINT: loop(unsigned int, IN2, OUT); break;\ |
| case IM_BANDFMT_INT: loop(signed int, IN2, OUT); break;\ |
| case IM_BANDFMT_FLOAT: loop(float, IN2, OUT); break; |
| |
| #define outfloat_2int(IN2, OUT)\ |
| case IM_BANDFMT_INT: loop(signed int, IN2, OUT); break;\ |
| case IM_BANDFMT_FLOAT: loop(float, IN2, OUT); break; |
| |
| #define outfloat_2float(IN2, OUT)\ |
| case IM_BANDFMT_FLOAT: loop(float, IN2, OUT); break; |
| |
| /** |
| * im_gfadd: |
| * |
| * Deprecated. |
| */ |
| int im_gfadd(a, in1, b, in2, c, out) |
| double a, b, c; |
| IMAGE *in1, *in2, *out; |
| { |
| static int fmt[] = { IM_BANDFMT_FLOAT, IM_BANDFMT_DOUBLE }; |
| int y, x; |
| int first, second, result; |
| IMAGE *tmp1, *tmp2; |
| PEL *line; |
| int os; /* size of a line of output image */ |
| |
| /* fd, data filename must have been set before the function is called |
| * Check whether they are set properly */ |
| if ((im_iocheck(in1, out) == -1) || (im_iocheck(in2, out) == -1)) |
| { im_error("im_gfadd"," im_iocheck failed"); return( -1 ); } |
| /* Checks the arguments entered in in and prepares out */ |
| if ( (in1->Xsize != in2->Xsize) || (in1->Ysize != in2->Ysize) || |
| (in1->Bands != in2->Bands) || (in1->Coding != in2->Coding) ) |
| { im_error("im_gfadd"," Input images differ"); return( -1 );} |
| if (in1->Coding != IM_CODING_NONE) |
| { im_error("im_gfadd"," images are coded"); return( -1 ); } |
| |
| switch(in1->BandFmt) { |
| case IM_BANDFMT_UCHAR: first = 0; break; |
| case IM_BANDFMT_CHAR: first = 1; break; |
| case IM_BANDFMT_USHORT: first = 2; break; |
| case IM_BANDFMT_SHORT: first = 3; break; |
| case IM_BANDFMT_UINT: first = 4; break; |
| case IM_BANDFMT_INT: first = 5; break; |
| case IM_BANDFMT_FLOAT: first = 6; break; |
| case IM_BANDFMT_DOUBLE: first = 7; break; |
| default: im_error("im_gfadd"," unable to accept image1"); |
| return( -1 ); |
| } |
| switch(in2->BandFmt) { |
| case IM_BANDFMT_UCHAR: second = 0; break; |
| case IM_BANDFMT_CHAR: second = 1; break; |
| case IM_BANDFMT_USHORT: second = 2; break; |
| case IM_BANDFMT_SHORT: second = 3; break; |
| case IM_BANDFMT_UINT: second = 4; break; |
| case IM_BANDFMT_INT: second = 5; break; |
| case IM_BANDFMT_FLOAT: second = 6; break; |
| case IM_BANDFMT_DOUBLE: second = 7; break; |
| default: im_error("im_gfadd"," unable to accept image2"); |
| return( -1 ); |
| } |
| /* Define the output */ |
| result = array[first][second]; |
| /* Prepare output */ |
| if ( im_cp_desc(out, in1) == -1) |
| { im_error("im_gfadd"," im_cp_desc failed"); return( -1 ); } |
| out->BandFmt = fmt[result]; |
| if( im_setupout(out) == -1) |
| { im_error("im_gfadd"," im_setupout failed"); return( -1 ); } |
| |
| /* Order in1 and in2 */ |
| if ( first >= second ) |
| { tmp1 = in1; tmp2 = in2; } |
| else |
| { tmp1 = in2; tmp2 = in1; } |
| |
| /* Define what we do for each band element type. */ |
| |
| #define loop(IN1, IN2, OUT)\ |
| { IN1 *input1 = (IN1 *) tmp1->data;\ |
| IN2 *input2 = (IN2 *) tmp2->data;\ |
| \ |
| for (y=0; y <out->Ysize; y++) {\ |
| OUT *cpline = (OUT*)line;\ |
| for (x=0; x<os; x++)\ |
| *cpline++ = (a*((OUT)*input1++) + \ |
| b*((OUT)*input2++) + c);\ |
| if (im_writeline(y, out, line) ) {\ |
| im_error("im_gfadd"," im_writeline failed");\ |
| free( line);\ |
| return( -1 );\ |
| }\ |
| }\ |
| } |
| |
| os = out->Xsize * out->Bands; |
| line = (PEL *) calloc ( (unsigned)os, sizeof(double) ); |
| if (line == NULL) |
| { im_error("im_gfadd"," unable to calloc"); return( -1 ); } |
| |
| switch (out->BandFmt) { |
| case IM_BANDFMT_DOUBLE: |
| switch (tmp2->BandFmt) { |
| case IM_BANDFMT_UCHAR: |
| select_outdouble(unsigned char, double); |
| break; |
| |
| case IM_BANDFMT_CHAR: |
| select_outdouble(signed char, double); |
| break; |
| |
| case IM_BANDFMT_USHORT: |
| select_outdouble(unsigned short, double); |
| break; |
| |
| case IM_BANDFMT_SHORT: |
| select_outdouble(signed short, double); |
| break; |
| |
| case IM_BANDFMT_UINT: |
| select_outdouble(unsigned int, double); |
| break; |
| |
| case IM_BANDFMT_INT: |
| select_outdouble(signed int, double); |
| break; |
| |
| case IM_BANDFMT_FLOAT: |
| select_outdouble(float, double); |
| break; |
| |
| case IM_BANDFMT_DOUBLE: |
| select_outdouble(double, double); |
| break; |
| |
| default: |
| im_error("im_gfadd","Wrong tmp2 format(d)"); |
| free( line ); |
| return( -1 ); |
| } |
| |
| break; |
| |
| case IM_BANDFMT_FLOAT : |
| switch (tmp2->BandFmt) { |
| case IM_BANDFMT_UCHAR: |
| switch (tmp1->BandFmt) { |
| outfloat_2uchar(unsigned char, float); |
| |
| default: |
| im_error("im_gfadd"," Error (a)"); |
| free( line ); |
| return( -1 ); |
| } |
| break; |
| |
| case IM_BANDFMT_CHAR: |
| switch (tmp1->BandFmt) { |
| outfloat_2char(signed char, float); |
| |
| default: |
| im_error("im_gfadd"," Error (b)"); |
| free( line); return( -1 ); |
| } |
| break; |
| |
| case IM_BANDFMT_USHORT: |
| switch (tmp1->BandFmt) { |
| outfloat_2ushort(unsigned short, float); |
| |
| default: |
| im_error("im_gfadd"," Error (c)"); |
| free( line); return( -1 ); |
| } |
| break; |
| |
| case IM_BANDFMT_SHORT: |
| switch (tmp1->BandFmt) { |
| outfloat_2short(signed short, float); |
| |
| default: |
| im_error("im_gfadd"," Error (d)"); |
| free( line); return( -1 ); |
| } |
| break; |
| |
| case IM_BANDFMT_UINT: |
| switch (tmp1->BandFmt) { |
| outfloat_2uint(unsigned int, float); |
| |
| default: |
| im_error("im_gfadd"," Error (e)"); |
| free( line); return( -1 ); |
| } |
| break; |
| |
| case IM_BANDFMT_INT: |
| switch (tmp1->BandFmt) { |
| outfloat_2int(signed int, float); |
| |
| default: |
| im_error("im_gfadd"," Error (f)"); |
| free( line ); |
| return( -1 ); |
| } |
| break; |
| |
| case IM_BANDFMT_FLOAT: |
| switch (tmp1->BandFmt) { |
| outfloat_2float(float, float); |
| |
| default: |
| im_error("im_gfadd"," Error (g)"); |
| free( line ); |
| return( -1 ); |
| } |
| break; |
| |
| default: |
| im_error("im_gfadd"," Wrong tmp2 format(f)"); |
| free( line ); |
| return( -1 ); |
| } |
| |
| break; |
| |
| default: |
| im_error("im_gfadd"," Impossible output state"); |
| free( line ); |
| return( -1 ); |
| } |
| |
| free( line ); |
| |
| return( 0 ); |
| } |