source: vbox/trunk/src/VBox/Additions/x11/x11include/pixman-0.16.0/pixman-accessor.h@ 66940

#ifdef PIXMAN_FB_ACCESSORS

#define ACCESS(sym) sym##_accessors

#define READ(img, ptr)                                                  \
    (((bits_image_t *)(img))->read_func ((ptr), sizeof(*(ptr))))
#define WRITE(img, ptr,val)                                             \
    (((bits_image_t *)(img))->write_func ((ptr), (val), sizeof (*(ptr))))

#define MEMCPY_WRAPPED(img, dst, src, size)                             \
    do {                                                                \
        size_t _i;                                                      \
        uint8_t *_dst = (uint8_t*)(dst), *_src = (uint8_t*)(src);       \
        for(_i = 0; _i < size; _i++) {                                  \
            WRITE((img), _dst +_i, READ((img), _src + _i));             \
        }                                                               \
    } while (0)

#define MEMSET_WRAPPED(img, dst, val, size)                             \
    do {                                                                \
        size_t _i;                                                      \
        uint8_t *_dst = (uint8_t*)(dst);                                \
        for(_i = 0; _i < (size_t) size; _i++) {                         \
            WRITE((img), _dst +_i, (val));                              \
        }                                                               \
    } while (0)

#else

#define ACCESS(sym) sym

#define READ(img, ptr)          (*(ptr))
#define WRITE(img, ptr, val)    (*(ptr) = (val))
#define MEMCPY_WRAPPED(img, dst, src, size)                             \
    memcpy(dst, src, size)
#define MEMSET_WRAPPED(img, dst, val, size)                             \
    memset(dst, val, size)

#endif