[Bf-blender-cvs] [8506edc0b8a] soc-2021-uv-editor-improvements: BLI: add double version of 'scaleform'
Germano Cavalcante
noreply at git.blender.org
Mon Aug 9 03:24:40 CEST 2021
Commit: 8506edc0b8a9b9e2b5a3b955d984aabf76c8e543
Author: Germano Cavalcante
Date: Wed Aug 4 10:38:03 2021 -0300
Branches: soc-2021-uv-editor-improvements
https://developer.blender.org/rB8506edc0b8a9b9e2b5a3b955d984aabf76c8e543
BLI: add double version of 'scaleform'
No functional changes. New utility.
===================================================================
M source/blender/blenlib/BLI_math_base.h
M source/blender/blenlib/intern/math_base_inline.c
===================================================================
diff --git a/source/blender/blenlib/BLI_math_base.h b/source/blender/blenlib/BLI_math_base.h
index 88dc20a64f2..e877503e835 100644
--- a/source/blender/blenlib/BLI_math_base.h
+++ b/source/blender/blenlib/BLI_math_base.h
@@ -120,6 +120,9 @@ MINLINE double interpd(double a, double b, double t);
MINLINE float ratiof(float min, float max, float pos);
MINLINE double ratiod(double min, double max, double pos);
+MINLINE float scalenorm(float a, float b, float x);
+MINLINE double scalenormd(double a, double b, double x);
+
/* NOTE: Compilers will upcast all types smaller than int to int when performing arithmetic
* operation. */
MINLINE int square_s(short a);
diff --git a/source/blender/blenlib/intern/math_base_inline.c b/source/blender/blenlib/intern/math_base_inline.c
index 6e3846e59c6..a80c495ecf3 100644
--- a/source/blender/blenlib/intern/math_base_inline.c
+++ b/source/blender/blenlib/intern/math_base_inline.c
@@ -199,6 +199,13 @@ MINLINE float scalenorm(float a, float b, float x)
return (x * (b - a)) + a;
}
+/* Map a normalized value, i.e. from interval [0, 1] to interval [a, b]. */
+MINLINE double scalenormd(double a, double b, double x)
+{
+ BLI_assert(x <= 1 && x >= 0);
+ return (x * (b - a)) + a;
+}
+
/* Used for zoom values. */
MINLINE float power_of_2(float val)
{
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