diff options
author | Brecht Van Lommel <brecht@blender.org> | 2021-10-14 18:51:27 +0300 |
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committer | Brecht Van Lommel <brecht@blender.org> | 2021-10-15 16:42:44 +0300 |
commit | eb71157e2a9c7abdeb7045bdf9b79d8ca27ba263 (patch) | |
tree | 16debc9c1a427e28d909890c917e55e9dfd16c5e /intern/cycles/util | |
parent | 2ba7c3aa650c3c795d903a24998204f67c75b017 (diff) |
Cleanup: add utility functions for packing integers
Diffstat (limited to 'intern/cycles/util')
-rw-r--r-- | intern/cycles/util/util_math.h | 30 |
1 files changed, 30 insertions, 0 deletions
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<typename T> ccl_device_inline uint pointer_pack_to_uint_0(T *ptr) +{ + return ((uint64_t)ptr) & 0xFFFFFFFF; +} + +template<typename T> ccl_device_inline uint pointer_pack_to_uint_1(T *ptr) +{ + return (((uint64_t)ptr) >> 32) & 0xFFFFFFFF; +} + +template<typename T> 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) { |