diff options
| -rw-r--r-- | nx-X11/programs/Xserver/include/misc.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/include/misc.h b/nx-X11/programs/Xserver/include/misc.h index 5944a427f..849f1b5cc 100644 --- a/nx-X11/programs/Xserver/include/misc.h +++ b/nx-X11/programs/Xserver/include/misc.h @@ -193,6 +193,36 @@ typedef struct _xReq *xReqPtr; #endif +/** + * Calculate the number of bytes needed to hold bits. + * @param bits The minimum number of bits needed. + * @return The number of bytes needed to hold bits. + */ +static __inline__ int +bits_to_bytes(const int bits) { + return ((bits + 7) >> 3); +} +/** + * Calculate the number of 4-byte units needed to hold the given number of + * bytes. + * @param bytes The minimum number of bytes needed. + * @return The number of 4-byte units needed to hold bytes. + */ +static __inline__ int +bytes_to_int32(const int bytes) { + return (((bytes) + 3) >> 2); +} + +/** + * Calculate the number of bytes (in multiples of 4) needed to hold bytes. + * @param bytes The minimum number of bytes needed. + * @return The closest multiple of 4 that is equal or higher than bytes. + */ +static __inline__ int +pad_to_int32(const int bytes) { + return (((bytes) + 3) & ~3); +} + /* some macros to help swap requests, replies, and events */ #define LengthRestB(stuff) \ |