diff options
author | Sergey Sharybin <sergey.vfx@gmail.com> | 2020-03-06 19:18:10 +0300 |
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committer | Sergey Sharybin <sergey.vfx@gmail.com> | 2020-03-09 16:47:59 +0300 |
commit | 598ab525da3df3fef2033c159c570688c7282a8f (patch) | |
tree | ba2bd0b8fc6ee5d264512bf655def1a6ee5d7b31 /source/blender/blenlib/BLI_math_base.h | |
parent | ee5d7bc16b243f309c84bce5deddf3a86b7f4c14 (diff) |
Cleanup: Replace ABS/SQUARE/CUBE with function calls
While it might be handy to have type-less functionality which is
similar to how C++ math is implemented it can not be easily achieved
with just preprocessor in a way which does not have side-effects on
wrong usage.
There macros where often used on a non-trivial expression, and there
was at least one usage where it was causing an actual side effect/bug
on Windows (see change around square_f(sh[index++]) in studiolight.c).
For such cases it is handy to have a function which is guaranteed to
have zero side-effects. The motivation behind actually removing the
macros is that there is already a way to do similar calculation. Also,
not having such macros is a way to guarantee that its usage is not
changed in a way which have side-effects and that it's not used as an
inspiration for cases where it should not be used.
Differential Revision: https://developer.blender.org/D7051
Diffstat (limited to 'source/blender/blenlib/BLI_math_base.h')
-rw-r--r-- | source/blender/blenlib/BLI_math_base.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_math_base.h b/source/blender/blenlib/BLI_math_base.h index 4f841f75d3a..7555d3d7daf 100644 --- a/source/blender/blenlib/BLI_math_base.h +++ b/source/blender/blenlib/BLI_math_base.h @@ -114,6 +114,23 @@ MINLINE float sasqrt(float fac); MINLINE float interpf(float a, float b, float t); MINLINE double interpd(double a, double b, double t); +/* NOTE: Compilers will upcast all types smaller than int to int when performing arithmetic + * operation. */ +MINLINE int square_s(short a); +MINLINE int square_uchar(unsigned char a); +MINLINE int cube_s(short a); +MINLINE int cube_uchar(unsigned char a); + +MINLINE int square_i(int a); +MINLINE unsigned int square_uint(unsigned int a); +MINLINE float square_f(float a); +MINLINE double square_d(double a); + +MINLINE int cube_i(int a); +MINLINE unsigned int cube_uint(unsigned int a); +MINLINE float cube_f(float a); +MINLINE double cube_d(double a); + MINLINE float min_ff(float a, float b); MINLINE float max_ff(float a, float b); MINLINE float min_fff(float a, float b, float c); |