From eb71157e2a9c7abdeb7045bdf9b79d8ca27ba263 Mon Sep 17 00:00:00 2001 From: Brecht Van Lommel Date: Thu, 14 Oct 2021 17:51:27 +0200 Subject: Cleanup: add utility functions for packing integers --- intern/cycles/util/util_math.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'intern/cycles/util') diff --git a/intern/cycles/util/util_math.h b/intern/cycles/util/util_math.h index f834011a032..535b6881d3f 100644 --- a/intern/cycles/util/util_math.h +++ b/intern/cycles/util/util_math.h @@ -268,6 +268,36 @@ ccl_device_inline float4 __int4_as_float4(int4 i) #endif } +template ccl_device_inline uint pointer_pack_to_uint_0(T *ptr) +{ + return ((uint64_t)ptr) & 0xFFFFFFFF; +} + +template ccl_device_inline uint pointer_pack_to_uint_1(T *ptr) +{ + return (((uint64_t)ptr) >> 32) & 0xFFFFFFFF; +} + +template ccl_device_inline T *pointer_unpack_from_uint(const uint a, const uint b) +{ + return (T *)(((uint64_t)b << 32) | a); +} + +ccl_device_inline uint uint16_pack_to_uint(const uint a, const uint b) +{ + return (a << 16) | b; +} + +ccl_device_inline uint uint16_unpack_from_uint_0(const uint i) +{ + return i >> 16; +} + +ccl_device_inline uint uint16_unpack_from_uint_1(const uint i) +{ + return i & 0xFFFF; +} + /* Versions of functions which are safe for fast math. */ ccl_device_inline bool isnan_safe(float f) { -- cgit v1.2.3