21 static int bm_readbody_pnm(FILE *f, double threshold, potrace_bitmap_t **bmp, int magic);
122   int magic[2];  in bm_read()  local
129   magic[0] = fgetc_ws(f);  in bm_read()
130   if (magic[0] == EOF) {  in bm_read()
133   magic[1] = fgetc(f);  in bm_read()
134   if (magic[0] == 'P' && magic[1] >= '1' && magic[1] <= '6') {  in bm_read()
135     return bm_readbody_pnm(f, threshold, bmp, magic[1]);  in bm_read()
137   if (magic[0] == 'B' && magic[1] == 'M') {  in bm_read()
147 static int bm_readbody_pnm(FILE *f, double threshold, potrace_bitmap_t **bmp, int magic) {  in bm_readbody_pnm()  argument
175   switch (magic) {  in bm_readbody_pnm()
341   if (magic == '1' || magic == '4') {  in bm_readbody_pnm()
343   } else if (magic == '2' || magic == '5') {  in bm_readbody_pnm()