84#define PNM_MAGIC_TXTPBM        0x5031  
   85#define PNM_MAGIC_TXTPGM        0x5032  
   86#define PNM_MAGIC_TXTPPM        0x5033  
   87#define PNM_MAGIC_BINPBM        0x5034  
   88#define PNM_MAGIC_BINPGM        0x5035  
   89#define PNM_MAGIC_BINPPM        0x5036  
   90#define PNM_MAGIC_PAM           0x5037  
   93#define PNM_TYPE_INVALID        0 
  102#define PNM_MAXLINELEN  79 
  104#define PNM_TUPLETYPE_UNKNOWN   0 
  105#define PNM_TUPLETYPE_MONO      1 
  106#define PNM_TUPLETYPE_GRAY      2 
  107#define PNM_TUPLETYPE_GRAYA     3 
  108#define PNM_TUPLETYPE_RGB       4 
  109#define PNM_TUPLETYPE_RGBA      5 
  146int pnm_type(uint_fast16_t magic);
 
  149int pnm_fmt(uint_fast16_t magic);
 
  152int pnm_maxvaltodepth(uint_fast32_t maxval);
 
  156        (((n) < 32) ? ((1UL << (n)) - 1) : 0xffffffffUL)