cogl: Remove Color.get_*_byte

Helps with https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3544

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3594>

clutter/clutter/clutter-deform-effect.c

@@ -251,10 +251,10 @@ clutter_deform_effect_paint_target (ClutterOffscreenEffect *effect,
               vertex_out->z = vertex.z;
               vertex_out->s = vertex.tx;
               vertex_out->t = vertex.ty;
-              vertex_out->r = cogl_color_get_red_byte (&vertex.color);
+              vertex_out->r = cogl_color_get_red (&vertex.color) * 255.0;
-              vertex_out->g = cogl_color_get_green_byte (&vertex.color);
+              vertex_out->g = cogl_color_get_green (&vertex.color) * 255.0;
-              vertex_out->b = cogl_color_get_blue_byte (&vertex.color);
+              vertex_out->b = cogl_color_get_blue (&vertex.color) * 255.0;
-              vertex_out->a = cogl_color_get_alpha_byte (&vertex.color);
+              vertex_out->a = cogl_color_get_alpha (&vertex.color) * 255.0;
             }
         }
 

cogl/cogl-pango/cogl-pango-display-list.c

@@ -417,13 +417,12 @@ _cogl_pango_display_list_render (CoglFramebuffer *fb,
       if (node->color_override)
         /* Use the override color but preserve the alpha from the
            draw color */
-        cogl_color_init_from_4ub (&draw_color,
+        cogl_color_init_from_4f (&draw_color,
-                                  cogl_color_get_red_byte (&node->color),
+                                 cogl_color_get_red (&node->color),
-                                  cogl_color_get_green_byte (&node->color),
+                                 cogl_color_get_green (&node->color),
-                                  cogl_color_get_blue_byte (&node->color),
+                                 cogl_color_get_blue (&node->color),
-                                  (cogl_color_get_alpha_byte (&node->color) *
+                                 (cogl_color_get_alpha (&node->color) *
-                                   cogl_color_get_alpha_byte (color) /
+                                  cogl_color_get_alpha (color)));
-                                   255));
       else
         draw_color = *color;
       cogl_color_premultiply (&draw_color);

cogl/cogl/cogl-color.c

@@ -87,48 +87,24 @@ cogl_color_init_from_4f (CoglColor *color,
   color->alpha =  (alpha * 255);
 }
 
-unsigned char
-cogl_color_get_red_byte (const CoglColor *color)
-{
-  return color->red;
-}
-
 float
 cogl_color_get_red (const CoglColor *color)
 {
   return  ((float) color->red / 255.0);
 }
 
-unsigned char
-cogl_color_get_green_byte (const CoglColor *color)
-{
-  return color->green;
-}
-
 float
 cogl_color_get_green (const CoglColor *color)
 {
   return  ((float) color->green / 255.0);
 }
 
-unsigned char
-cogl_color_get_blue_byte (const CoglColor *color)
-{
-  return color->blue;
-}
-
 float
 cogl_color_get_blue (const CoglColor *color)
 {
   return  ((float) color->blue / 255.0);
 }
 
-unsigned char
-cogl_color_get_alpha_byte (const CoglColor *color)
-{
-  return color->alpha;
-}
-
 float
 cogl_color_get_alpha (const CoglColor *color)
 {

cogl/cogl/cogl-color.h

@@ -115,54 +115,6 @@ cogl_color_init_from_4f (CoglColor *color,
                          float blue,
                          float alpha);
 
-/**
- * cogl_color_get_red_byte:
- * @color: a #CoglColor
- *
- * Retrieves the red channel of @color as a byte value
- * between 0 and 255
- *
- * Return value: the red channel of the passed color
- */
-COGL_EXPORT unsigned char
-cogl_color_get_red_byte (const CoglColor *color);
-
-/**
- * cogl_color_get_green_byte:
- * @color: a #CoglColor
- *
- * Retrieves the green channel of @color as a byte value
- * between 0 and 255
- *
- * Return value: the green channel of the passed color
- */
-COGL_EXPORT unsigned char
-cogl_color_get_green_byte (const CoglColor *color);
-
-/**
- * cogl_color_get_blue_byte:
- * @color: a #CoglColor
- *
- * Retrieves the blue channel of @color as a byte value
- * between 0 and 255
- *
- * Return value: the blue channel of the passed color
- */
-COGL_EXPORT unsigned char
-cogl_color_get_blue_byte (const CoglColor *color);
-
-/**
- * cogl_color_get_alpha_byte:
- * @color: a #CoglColor
- *
- * Retrieves the alpha channel of @color as a byte value
- * between 0 and 255
- *
- * Return value: the alpha channel of the passed color
- */
-COGL_EXPORT unsigned char
-cogl_color_get_alpha_byte (const CoglColor *color);
-
 /**
  * cogl_color_get_red:
  * @color: a #CoglColor

cogl/cogl/cogl-pipeline-debug.c

@@ -187,10 +187,10 @@ dump_pipeline_cb (CoglNode *node, void *user_data)
       changes = TRUE;
       g_string_append_printf (changes_label,
                               "\\lcolor=0x%02X%02X%02X%02X\\n",
-                              cogl_color_get_red_byte (&pipeline->color),
+                              (int) (cogl_color_get_red (&pipeline->color) * 255.0),
-                              cogl_color_get_green_byte (&pipeline->color),
+                              (int) (cogl_color_get_green (&pipeline->color) * 255.0),
-                              cogl_color_get_blue_byte (&pipeline->color),
+                              (int) (cogl_color_get_blue (&pipeline->color) * 255.0),
-                              cogl_color_get_alpha_byte (&pipeline->color));
+                              (int) (cogl_color_get_alpha (&pipeline->color) * 255.0));
     }
 
   if (pipeline->differences & COGL_PIPELINE_STATE_BLEND)

cogl/cogl/cogl-pipeline.c

@@ -639,14 +639,15 @@ _cogl_pipeline_change_implies_transparency (CoglPipeline *pipeline,
   if (unknown_color_alpha)
     return TRUE;
 
-  if ((override_color && cogl_color_get_alpha_byte (override_color) != 0xff))
+  if (override_color &&
+      !G_APPROX_VALUE (cogl_color_get_alpha (override_color), 1.0, FLT_EPSILON))
     return TRUE;
 
   if (changes & COGL_PIPELINE_STATE_COLOR)
     {
       CoglColor tmp;
       cogl_pipeline_get_color (pipeline, &tmp);
-      if (cogl_color_get_alpha_byte (&tmp) != 0xff)
+      if (!G_APPROX_VALUE (cogl_color_get_alpha (&tmp), 1.0, FLT_EPSILON))
         return TRUE;
     }
 

src/tests/clutter/interactive/test-cogl-tex-polygon.c

@@ -89,10 +89,10 @@ test_coglbox_fade_texture (CoglFramebuffer *framebuffer,
                                 255,
                                 ((i ^ (i >> 1)) & 1) ? 0 : 128);
       cogl_color_premultiply (&cogl_color);
-      vertices[i].r = cogl_color_get_red_byte (&cogl_color);
+      vertices[i].r = cogl_color_get_red (&cogl_color) * 255.0;
-      vertices[i].g = cogl_color_get_green_byte (&cogl_color);
+      vertices[i].g = cogl_color_get_green (&cogl_color) * 255.0;
-      vertices[i].b = cogl_color_get_blue_byte (&cogl_color);
+      vertices[i].b = cogl_color_get_blue (&cogl_color) * 255.0;
-      vertices[i].a = cogl_color_get_alpha_byte (&cogl_color);
+      vertices[i].a = cogl_color_get_alpha (&cogl_color) * 255.0;
     }
 
   primitive =

src/tests/cogl/conform/test-color-hsl.c

@@ -13,7 +13,7 @@ test_color_hsl (void)
   CoglColor color;
   float hue, saturation, luminance;
 
-  cogl_color_init_from_4ub(&color, 108, 198, 78, 255);
+  cogl_color_init_from_4f (&color, 108.0 / 255.0, 198 / 255.0, 78.0 / 255.0, 1.0);
   cogl_color_to_hsl(&color, &hue, &saturation, &luminance);
 
   g_assert_cmpfloat_with_epsilon (hue, 105.f, TEST_CASE_EPSILON);
@@ -23,10 +23,14 @@ test_color_hsl (void)
   memset(&color, 0, sizeof (CoglColor));
   cogl_color_init_from_hsl (&color, hue, saturation, luminance);
 
-  g_assert_cmpint (cogl_color_get_red_byte (&color), ==, 108);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_red (&color), 108.0 / 255.0,
-  g_assert_cmpint (cogl_color_get_green_byte (&color), ==, 198);
+                                  TEST_CASE_EPSILON);
-  g_assert_cmpint (cogl_color_get_blue_byte (&color), ==, 78);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_green (&color), 198.0 / 255.0,
-  g_assert_cmpint (cogl_color_get_alpha_byte (&color), ==, 255);
+                                  TEST_CASE_EPSILON);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_blue (&color), 78.0 / 255.0,
+                                  TEST_CASE_EPSILON);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_alpha (&color), 1.0,
+                                  TEST_CASE_EPSILON);
 
   memset(&color, 0, sizeof (CoglColor));
   cogl_color_init_from_hsl (&color, hue, 0, luminance);