pixman/pixman-accessor.h

   1 #ifdef PIXMAN_FB_ACCESSORS
   2
   3 #define ACCESS(sym) sym##_accessors
   4
   5 #define READ(img, ptr)                                                  \
   6     (((bits_image_t *)(img))->read_func ((ptr), sizeof(*(ptr))))
   7 #define WRITE(img, ptr,val)                                             \
   8     (((bits_image_t *)(img))->write_func ((ptr), (val), sizeof (*(ptr))))
   9
  10 #define MEMCPY_WRAPPED(img, dst, src, size)                             \
  11     do {                                                                \
  12         size_t _i;                                                      \
  13         uint8_t *_dst = (uint8_t*)(dst), *_src = (uint8_t*)(src);       \
  14         for(_i = 0; _i < size; _i++) {                                  \
  15             WRITE((img), _dst +_i, READ((img), _src + _i));             \
  16         }                                                               \
  17     } while (0)
  18
  19 #define MEMSET_WRAPPED(img, dst, val, size)                             \
  20     do {                                                                \
  21         size_t _i;                                                      \
  22         uint8_t *_dst = (uint8_t*)(dst);                                \
  23         for(_i = 0; _i < (size_t) size; _i++) {                         \
  24             WRITE((img), _dst +_i, (val));                              \
  25         }                                                               \
  26     } while (0)
  27
  28 #else
  29
  30 #define ACCESS(sym) sym
  31
  32 #define READ(img, ptr)          (*(ptr))
  33 #define WRITE(img, ptr, val)    (*(ptr) = (val))
  34 #define MEMCPY_WRAPPED(img, dst, src, size)                             \
  35     memcpy(dst, src, size)
  36 #define MEMSET_WRAPPED(img, dst, val, size)                             \
  37     memset(dst, val, size)
  38
  39 #endif
  40