diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_context.h | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h index 772b2fba5a8..c59119373da 100644 --- a/src/mesa/drivers/dri/intel/intel_context.h +++ b/src/mesa/drivers/dri/intel/intel_context.h @@ -295,9 +295,33 @@ extern char *__progname; #define SUBPIXEL_Y 0.125 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) -#define ALIGN(value, alignment) ((value + alignment - 1) & ~(alignment - 1)) -#define ROUND_DOWN_TO(value, alignment) (ALIGN(value - alignment - 1, \ - alignment)) + +/** + * Align a value up to an alignment value + * + * If \c value is not already aligned to the requested alignment value, it + * will be rounded up. + * + * \param value Value to be rounded + * \param alignment Alignment value to be used. This must be a power of two. + * + * \sa ROUND_DOWN_TO() + */ +#define ALIGN(value, alignment) (((value) + alignment - 1) & ~(alignment - 1)) + +/** + * Align a value down to an alignment value + * + * If \c value is not already aligned to the requested alignment value, it + * will be rounded down. + * + * \param value Value to be rounded + * \param alignment Alignment value to be used. This must be a power of two. + * + * \sa ALIGN() + */ +#define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1)) + #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0) static INLINE uint32_t |