[ Closed ] extract pngs from existing maps. (Page 1 of 2)

/* dcopyright (c) 2007 magnus auvinen, see licence.txt for more info */
/* +stuff added by axel, open domain*/
/**
 * This application will extract embedded pngs from new map files.
 */
extern "C" {
#include <engine/e_datafile.h>
#include <stdio.h>
#include <stdlib.h>
#include "game/g_mapitems.h"
#include "engine/external/pnglite/pnglite.h"
}

int main(int argc, char **argv)
{
    if(argc != 2) {
        printf("wrong arguments, there has to be one and only one and this is the mapfile to extract the images from.\n");
        return -1;
    }
    DATAFILE *df = datafile_load(argv[1]);
    if(!df) {
        printf("cannot read %s\n", argv[1]);
        return -1;
    }
    printf("loading %s\n", argv[1]);
        
    // check version
    MAPITEM_VERSION *item = (MAPITEM_VERSION *)datafile_find_item(df, MAPITEMTYPE_VERSION, 0);
    if(!item) {
        printf("cannot extract from old maps\n");
        return -1;
    }
    png_init(0, 0);
    
    // load images
    int start, num;
    datafile_get_type(df, MAPITEMTYPE_IMAGE, &start, &num);
    for(int i = 0; i < num; i++)
    {
        MAPITEM_IMAGE *item = (MAPITEM_IMAGE *)datafile_get_item(df, start+i, 0, 0);
        char *name = (char *)datafile_get_data(df, item->image_name);

        if(item->external) {
            printf("skipping external %s\n", name);
        } else {
            printf("writing %s.png\n", name);
            
            void *data = datafile_get_data(df, item->image_data);

            char buf[255];
            snprintf(buf, sizeof(buf), "%s.png", name);

            png_t png;
            png_open_file_write(&png, buf);
            png_set_data(&png, item->width, item->height, 8, PNG_TRUECOLOR_ALPHA, (unsigned char*) data);
            png_close_file(&png);
        }
    }
    
    datafile_unload(df);
    return 0;
}

...
    for i,v in objs do
        toolname = PathFilename(PathBase(v))
        tools[i] = Link(settings, toolname, v, engine)
    end
...

...
    for i,v in objs do
        toolname = PathFilename(PathBase(v))
        tools[i] = Link(settings, toolname, v, engine, zlib, pnglite)
    end
...