From 90cfc4d89ff457e06b9fed51ffd20dd239c87b2f Mon Sep 17 00:00:00 2001
From: Hans Goudey <hans@blender.org>
Date: Fri, 20 Dec 2024 14:52:43 -0500
Subject: [PATCH] Cleanup: Remove unused color conversion function

Unused for 14 years.
---
 source/blender/blenlib/BLI_math_color.h     | 13 -------------
 source/blender/blenlib/intern/math_color.cc | 20 --------------------
 2 files changed, 33 deletions(-)

diff --git a/source/blender/blenlib/BLI_math_color.h b/source/blender/blenlib/BLI_math_color.h
index d17d59da0cb..c718d528484 100644
--- a/source/blender/blenlib/BLI_math_color.h
+++ b/source/blender/blenlib/BLI_math_color.h
@@ -199,19 +199,6 @@ MINLINE void cpack_cpy_3ub(unsigned char r_col[3], unsigned int pack);
 
 /** \} */
 
-/* -------------------------------------------------------------------- */
-/** \name lift/gamma/gain / ASC-CDL conversion
- * \{ */
-
-void lift_gamma_gain_to_asc_cdl(const float *lift,
-                                const float *gamma,
-                                const float *gain,
-                                float *offset,
-                                float *slope,
-                                float *power);
-
-/** \} */
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/blender/blenlib/intern/math_color.cc b/source/blender/blenlib/intern/math_color.cc
index d55280f569c..f501025fc6b 100644
--- a/source/blender/blenlib/intern/math_color.cc
+++ b/source/blender/blenlib/intern/math_color.cc
@@ -723,27 +723,7 @@ int constrain_rgb(float *r, float *g, float *b)
   return 0; /* Color within RGB gamut */
 }
 
-/* ********************** lift/gamma/gain / ASC-CDL conversion ********************************* */
 
-void lift_gamma_gain_to_asc_cdl(const float *lift,
-                                const float *gamma,
-                                const float *gain,
-                                float *offset,
-                                float *slope,
-                                float *power)
-{
-  int c;
-  for (c = 0; c < 3; c++) {
-    offset[c] = lift[c] * gain[c];
-    slope[c] = gain[c] * (1.0f - lift[c]);
-    if (gamma[c] == 0) {
-      power[c] = FLT_MAX;
-    }
-    else {
-      power[c] = 1.0f / gamma[c];
-    }
-  }
-}
 
 /* ************************************* other ************************************************* */