tools: bmp2tiles write to seperate output folder

diff --git a/tools/bmp2tiles/bmp2tiles.c b/tools/bmp2tiles/bmp2tiles.c
index 7da5a38..61ce69c 100644 (file)
--- a/tools/bmp2tiles/bmp2tiles.c
+++ b/tools/bmp2tiles/bmp2tiles.c
@@ -14,6 +14,10 @@
 #include <unistd.h>
 #include <assert.h>
 #include <getopt.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/sysmacros.h>
 #include <SDL2/SDL_image.h>
 
 #define TILE_SZ                32
@@ -103,7 +107,7 @@ FILE * openstream(const char * name, const char * prefix,
 
        unsigned buf_len = 256;
        char buf[buf_len];
-       snprintf(buf, buf_len, "%s%d.%s", name, tile_nr, prefix);
+       snprintf(buf, buf_len, "%s/%s%d.%s", prefix, name, tile_nr, prefix);
 
        //printf("%s\n", buf);
        if (!append) { 
@@ -115,6 +119,20 @@ FILE * openstream(const char * name, const char * prefix,
        return stream;
 }
 
+int create_dir(const char *name)
+{
+       struct stat statbuf;
+
+       if (stat(name, &statbuf) == -1) 
+               return mkdir(name, 0755);
+       
+       if ((statbuf.st_mode & S_IFMT) != S_IFDIR)
+               return -1;
+
+       return 0;
+}
+
+
 int main(int argc, char *argv[])
 {
        SDL_Surface * rawbmp;
@@ -178,6 +196,15 @@ int main(int argc, char *argv[])
                sprintf(outfile, "out");
        }
        
+       /* check for existing gfx/ and pal/ directories */
+       ret = create_dir("gfx/");
+       ret += create_dir("pal/");
+
+       if (ret) {
+               fprintf(stderr, "error: can not create output location\n");
+               goto cleanup;
+       }
+
        fprintf(stdout, "generating %d tile(s) \
                        in %d gfx file(s) \
                        with %d pal file(s)\n",
@@ -185,7 +212,6 @@ int main(int argc, char *argv[])
                        seperate_gfx ? gfx->row_tiles * gfx->col_tiles : 1,
                        seperate_pal ? gfx->row_tiles * gfx->col_tiles : 1);
 
-       
        for (int i = 0, cnt = 0; i < gfx->row_tiles; ++i) {
                for (int j = 0; j < gfx->col_tiles; ++j, ++cnt) {