| /* @(#) Generalised addition of two vasari images. |
| * @(#)Inputs, outputs are neither float nor double |
| * @(#) Result at each point is a*in1 + b*in2 + c |
| * @(#) Result depends on inputs, rounding is carried out; |
| * @(#) Function im_gaddim() assumes that the both input files |
| * @(#) are either memory mapped or in a buffer. |
| * @(#) Images must have the same no of bands and must not be complex |
| * @(#) No check for overflow is done; |
| * @(#) |
| * @(#) int im_gaddim(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: |
| */ |
| |
| /* |
| |
| 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*/ |
| |
| /* This function works on either mmaped files or on images in buffer |
| */ |
| |
| /* uchar char ushort short uint int */ |
| static int array[6][6] = { |
| /* uchar */ { 2, 3, 2, 3, 4, 5 }, |
| /* char */ { 3, 3, 3, 3, 5, 5 }, |
| /* ushort */ { 2, 3, 2, 3, 4, 5 }, |
| /* short */ { 3, 3, 3, 3, 5, 5 }, |
| /* uint */ { 4, 5, 4, 5, 4, 5 }, |
| /* int */ { 5, 5, 5, 5, 5, 5 } |
| }; |
| |
| #define select_tmp2_for_out_int(OUT) \ |
| case IM_BANDFMT_UCHAR: select_tmp1_for_out_int(unsigned char, OUT); break; \ |
| case IM_BANDFMT_CHAR: select_tmp1_for_out_int(signed char, OUT); break; \ |
| case IM_BANDFMT_USHORT: select_tmp1_for_out_int(unsigned short, OUT); break; \ |
| case IM_BANDFMT_SHORT: select_tmp1_for_out_int(signed short, OUT); break; \ |
| case IM_BANDFMT_UINT: select_tmp1_for_out_int(unsigned int, OUT); break; \ |
| case IM_BANDFMT_INT: select_tmp1_for_out_int(signed int, OUT); break; \ |
| \ |
| default: \ |
| im_error("im_gaddim","Wrong tmp2 format(1)"); \ |
| free( line); \ |
| return(-1); |
| |
| #define select_tmp1_for_out_int(IN2, OUT) \ |
| switch(tmp1->BandFmt) { \ |
| case IM_BANDFMT_UINT: loop(unsigned int, IN2, OUT); break; \ |
| case IM_BANDFMT_INT: loop(int, IN2, OUT); break; \ |
| default: im_error("im_gaddim","Wrong tmp2 format(2)");\ |
| free( line);\ |
| return(-1); \ |
| } |
| |
| #define select_tmp2_for_out_short(OUT) \ |
| case IM_BANDFMT_UCHAR: select_tmp1_for_out_short(unsigned char, OUT); break; \ |
| case IM_BANDFMT_CHAR: select_tmp1_for_out_short(signed char, OUT); break; \ |
| case IM_BANDFMT_USHORT: select_tmp1_for_out_short(unsigned short, OUT); break; \ |
| case IM_BANDFMT_SHORT: select_tmp1_for_out_short(signed short, OUT); break; \ |
| default: g_assert( 0 ); |
| #define select_tmp1_for_out_short(IN2, OUT) \ |
| switch(tmp1->BandFmt) { \ |
| 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; \ |
| default: im_error("im_gaddim","Wrong image1 format(4)");\ |
| free( line);\ |
| return(-1); \ |
| } |
| |
| |
| |
| |
| /** |
| * im_gaddim: |
| * |
| * Deprecated. |
| */ |
| int im_gaddim(a, in1, b, in2, c, out) |
| IMAGE *in1, *in2, *out; |
| double a, b, c; |
| { |
| static int fmt[] = { IM_BANDFMT_UCHAR, IM_BANDFMT_CHAR, |
| IM_BANDFMT_USHORT, IM_BANDFMT_SHORT, |
| IM_BANDFMT_UINT, IM_BANDFMT_INT }; |
| 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)) |
| { |
| 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_gaddim"," Input images differ"); return(-1); } |
| if (in1->Coding != IM_CODING_NONE) |
| { im_error("im_gaddim"," images must be uncoded"); 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; |
| default: im_error("im_gaddim"," 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; |
| default: im_error("im_gaddim"," Unable to accept image2"); |
| return(-1); |
| } |
| /* Define the output */ |
| result = array[first][second]; |
| |
| /* Prepare the output header */ |
| if ( im_cp_desc(out, in1) == -1) |
| { im_error("im_gaddim"," im_cp_desc failed"); return(-1); } |
| out->BandFmt = fmt[result]; |
| |
| if( im_setupout(out) == -1) |
| { im_error("im_gaddim"," 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++ = (OUT) \ |
| (a*(*input1++)+b*(*input2++)+c +0.5);\ |
| if (im_writeline(y, out, line) == -1) {\ |
| free( line);\ |
| return ( -1 );\ |
| }\ |
| }\ |
| } |
| |
| os = out->Xsize * out->Bands; |
| line = (PEL *) calloc ( (unsigned)os, sizeof(double) ); |
| if (line == NULL) |
| { |
| im_error("im_gaddim"," Unable to calloc"); |
| return(-1); |
| } |
| |
| switch (out->BandFmt) { |
| case IM_BANDFMT_INT: |
| switch (tmp2->BandFmt) { |
| select_tmp2_for_out_int(int); |
| } |
| break; |
| |
| case IM_BANDFMT_UINT: |
| switch (tmp2->BandFmt) { |
| select_tmp2_for_out_int(unsigned int); |
| } |
| break; |
| case IM_BANDFMT_SHORT: |
| switch (tmp2->BandFmt) { |
| select_tmp2_for_out_short(short); |
| } |
| break; |
| case IM_BANDFMT_USHORT: |
| switch (tmp2->BandFmt) { |
| select_tmp2_for_out_short(unsigned short); |
| } |
| break; |
| default: |
| im_error("im_gaddim"," Impossible output state"); |
| free( line); |
| return(-1); |
| } |
| |
| free( line); |
| |
| return(0); |
| } |