[gimp] libgimpcolor: remove gimp_rgb_to_hsv_int() and gimp_hsv_to_rgb_int() cruft

[Michael Natterer <mitch src gnome org>]

commit 40df58011fa9a9a479f27eda22b92ec48275d5ef
Author: Michael Natterer <mitch gimp org>
Date:   Mon Oct 22 13:06:43 2018 +0200

    libgimpcolor: remove gimp_rgb_to_hsv_int() and gimp_hsv_to_rgb_int() cruft

 libgimpcolor/gimpcolor.def    |   2 -
 libgimpcolor/gimpcolorspace.c | 171 ------------------------------------------
 libgimpcolor/gimpcolorspace.h |  10 ---
 3 files changed, 183 deletions(-)
---
diff --git a/libgimpcolor/gimpcolor.def b/libgimpcolor/gimpcolor.def
index ce058f9d00..4fd5a70e00 100644
--- a/libgimpcolor/gimpcolor.def
+++ b/libgimpcolor/gimpcolor.def
@@ -67,7 +67,6 @@ EXPORTS
        gimp_hsv_get_type
        gimp_hsv_set
        gimp_hsv_to_rgb
-       gimp_hsv_to_rgb_int
        gimp_hsva_set
        gimp_param_rgb_get_type
        gimp_param_spec_rgb
@@ -101,7 +100,6 @@ EXPORTS
        gimp_rgb_to_hsl
        gimp_rgb_to_hsl_int
        gimp_rgb_to_hsv
-       gimp_rgb_to_hsv_int
        gimp_rgb_to_l_int
        gimp_rgba_add
        gimp_rgba_distance
diff --git a/libgimpcolor/gimpcolorspace.c b/libgimpcolor/gimpcolorspace.c
index 46bff703f6..1dcd8edb35 100644
--- a/libgimpcolor/gimpcolorspace.c
+++ b/libgimpcolor/gimpcolorspace.c
@@ -44,7 +44,6 @@
  **/
 
 
-#define GIMP_HSV_UNDEFINED -1.0
 #define GIMP_HSL_UNDEFINED -1.0
 
 /*********************************
@@ -404,178 +403,8 @@ gimp_cmyk_to_rgb (const GimpCMYK *cmyk,
 }
 
 
-#define GIMP_RETURN_RGB(x, y, z) { rgb->r = x; rgb->g = y; rgb->b = z; return; }
-
-/****************************************************************************
- * Theoretically, hue 0 (pure red) is identical to hue 6 in these transforms.
- * Pure red always maps to 6 in this implementation. Therefore UNDEFINED can
- * be defined as 0 in situations where only unsigned numbers are desired.
- ****************************************************************************/
-
-
 /*  gint functions  */
 
-/**
- * gimp_rgb_to_hsv_int:
- * @red: The red channel value, returns the Hue channel
- * @green: The green channel value, returns the Saturation channel
- * @blue: The blue channel value, returns the Value channel
- *
- * The arguments are pointers to int representing channel values in
- * the RGB colorspace, and the values pointed to are all in the range
- * [0, 255].
- *
- * The function changes the arguments to point to the HSV value
- * corresponding, with the returned values in the following
- * ranges: H [0, 359], S [0, 255], V [0, 255].
- **/
-void
-gimp_rgb_to_hsv_int (gint *red,
-                     gint *green,
-                     gint *blue)
-{
-  gdouble  r, g, b;
-  gdouble  h, s, v;
-  gint     min;
-  gdouble  delta;
-
-  r = *red;
-  g = *green;
-  b = *blue;
-
-  if (r > g)
-    {
-      v = MAX (r, b);
-      min = MIN (g, b);
-    }
-  else
-    {
-      v = MAX (g, b);
-      min = MIN (r, b);
-    }
-
-  delta = v - min;
-
-  if (v == 0.0)
-    s = 0.0;
-  else
-    s = delta / v;
-
-  if (s == 0.0)
-    {
-      h = 0.0;
-    }
-  else
-    {
-      if (r == v)
-        h = 60.0 * (g - b) / delta;
-      else if (g == v)
-        h = 120 + 60.0 * (b - r) / delta;
-      else
-        h = 240 + 60.0 * (r - g) / delta;
-
-      if (h < 0.0)
-        h += 360.0;
-
-      if (h > 360.0)
-        h -= 360.0;
-    }
-
-  *red   = ROUND (h);
-  *green = ROUND (s * 255.0);
-  *blue  = ROUND (v);
-
-  /* avoid the ambiguity of returning different values for the same color */
-  if (*red == 360)
-    *red = 0;
-}
-
-/**
- * gimp_hsv_to_rgb_int:
- * @hue: The hue channel, returns the red channel
- * @saturation: The saturation channel, returns the green channel
- * @value: The value channel, returns the blue channel
- *
- * The arguments are pointers to int, with the values pointed to in the
- * following ranges:  H [0, 360], S [0, 255], V [0, 255].
- *
- * The function changes the arguments to point to the RGB value
- * corresponding, with the returned values all in the range [0, 255].
- **/
-void
-gimp_hsv_to_rgb_int (gint *hue,
-                     gint *saturation,
-                     gint *value)
-{
-  gdouble h, s, v, h_temp;
-  gdouble f, p, q, t;
-  gint i;
-
-  if (*saturation == 0)
-    {
-      *hue        = *value;
-      *saturation = *value;
-      *value      = *value;
-    }
-  else
-    {
-      h = *hue;
-      s = *saturation / 255.0;
-      v = *value      / 255.0;
-
-      if (h == 360)
-        h_temp = 0;
-      else
-        h_temp = h;
-
-      h_temp = h_temp / 60.0;
-      i = floor (h_temp);
-      f = h_temp - i;
-      p = v * (1.0 - s);
-      q = v * (1.0 - (s * f));
-      t = v * (1.0 - (s * (1.0 - f)));
-
-      switch (i)
-        {
-        case 0:
-          *hue        = ROUND (v * 255.0);
-          *saturation = ROUND (t * 255.0);
-          *value      = ROUND (p * 255.0);
-          break;
-
-        case 1:
-          *hue        = ROUND (q * 255.0);
-          *saturation = ROUND (v * 255.0);
-          *value      = ROUND (p * 255.0);
-          break;
-
-        case 2:
-          *hue        = ROUND (p * 255.0);
-          *saturation = ROUND (v * 255.0);
-          *value      = ROUND (t * 255.0);
-          break;
-
-        case 3:
-          *hue        = ROUND (p * 255.0);
-          *saturation = ROUND (q * 255.0);
-          *value      = ROUND (v * 255.0);
-          break;
-
-        case 4:
-          *hue        = ROUND (t * 255.0);
-          *saturation = ROUND (p * 255.0);
-          *value      = ROUND (v * 255.0);
-          break;
-
-        case 5:
-          *hue        = ROUND (v * 255.0);
-          *saturation = ROUND (p * 255.0);
-          *value      = ROUND (q * 255.0);
-          break;
-        }
-    }
-}
-
 /**
  * gimp_rgb_to_hsl_int:
  * @red: Red channel, returns Hue channel
diff --git a/libgimpcolor/gimpcolorspace.h b/libgimpcolor/gimpcolorspace.h
index 32df1862fc..f5327c4351 100644
--- a/libgimpcolor/gimpcolorspace.h
+++ b/libgimpcolor/gimpcolorspace.h
@@ -51,16 +51,6 @@ void   gimp_cmyk_to_rgb         (const GimpCMYK *cmyk,
 
 /*  gint functions  */
 
-GIMP_DEPRECATED_FOR (gimp_rgb_to_hsv)
-void    gimp_rgb_to_hsv_int     (gint    *red         /* returns hue        */,
-                                 gint    *green       /* returns saturation */,
-                                 gint    *blue        /* returns value      */);
-
-GIMP_DEPRECATED_FOR (gimp_hsv_to_rgb)
-void    gimp_hsv_to_rgb_int     (gint    *hue         /* returns red        */,
-                                 gint    *saturation  /* returns green      */,
-                                 gint    *value       /* returns blue       */);
-
 GIMP_DEPRECATED_FOR (gimp_rgb_to_hsl)
 void    gimp_rgb_to_hsl_int     (gint    *red         /* returns hue        */,
                                  gint    *green       /* returns saturation */,