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/* ScummC

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU 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 General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

/**

* @file imgsplit.c

* @brief Tool to split an image

#include "config.h"

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <inttypes.h>

#include <errno.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <fcntl.h>

#include "scc_fd.h"

#include "scc_util.h"

#include "scc_param.h"

//#include "scc.h"

#include "scc_img.h"

#include "imgsplit_help.h"

static int dw = 0, dh = 0;

static char* outbase = NULL;

static char* outfmt = NULL;

static scc_param_t scc_parse_params[] = {

{ "outbase", SCC_PARAM_STR, 0, 0, &outbase },

{ "outfmt", SCC_PARAM_STR, 0, 0, &outfmt },

{ "dw", SCC_PARAM_INT, 1, 100000, &dw },

{ "dh", SCC_PARAM_INT, 1, 100000, &dh },

{ "help", SCC_PARAM_HELP, 0, 0, &imgsplit_help },

{ NULL, 0, 0, 0, NULL }

};

int main(int argc,char** argv) {

scc_cl_arg_t* files,*f;

int num = 0,x,y,l;

char outname[1024];

scc_img_t *in,*out;

files = scc_param_parse_argv(scc_parse_params,argc-1,&argv[1]);

if(!files || !dw || !dh) scc_print_help(&imgsplit_help,1);

if(!outbase) outbase = "frame";

if(!outfmt) outfmt = "%s-%02d.bmp";

for(f = files ; f ; f = f->next) {

in = scc_img_open(f->val);

if(!in) {

printf("Failed to open %s.\n",f->val);

return 1;

}

if(in->w < dw || in->h < dh) {

printf("Input image %s is too small.\n",f->val);

return 1;

}

if(in->w % dw)

printf("Warning: input image %s width is not a multiple of destination height.\n",

f->val);

if(in->h % dh)

printf("Warning: input image %s height is not a multiple of destination height.\n",

f->val);

for(y = 0 ; y < in->h ; y += dh) {

for(x = 0 ; x < in->w ; x += dw) {

out = scc_img_new(dw,dh,in->ncol);

memcpy(out->pal,in->pal,3*in->ncol);

for(l = 0 ; l < dh ; l++)

memcpy(&out->data[l*dw],&in->data[(y+l)*in->w+x],dw);

snprintf(outname,1023,outfmt,outbase,num);

outname[1023] = '\0';

if(!scc_img_save_bmp(out,outname)) return 1;

num++;

}

return 0;

}