Film response curves implemented as a looks

This commit implement's OCIO's Looks idea which
is about applying some color correction on the
buffer before it get's affected by a display
transform.

This is mainly used to modify images in an
artistics way.

Currently we've got looks generated from film
response curves for all sorts of cameras.

Patch by both of me and Brecht.

1 files changed, 45 insertions, 1 deletions

diff --git a/source/blender/makesrna/intern/rna_color.c b/source/blender/makesrna/intern/rna_color.c
index 933f06cec8c..dcf6adf6fca 100644
--- a/source/blender/makesrna/intern/rna_color.c
+++ b/source/blender/makesrna/intern/rna_color.c
@@ -470,6 +470,37 @@ static EnumPropertyItem *rna_ColorManagedViewSettings_view_transform_itemf(bCont
 	return items;
 }
 
+static int rna_ColorManagedViewSettings_look_get(PointerRNA *ptr)
+{
+	ColorManagedViewSettings *view = (ColorManagedViewSettings *) ptr->data;
+
+	return IMB_colormanagement_look_get_named_index(view->look);
+}
+
+static void rna_ColorManagedViewSettings_look_set(PointerRNA *ptr, int value)
+{
+	ColorManagedViewSettings *view = (ColorManagedViewSettings *) ptr->data;
+
+	const char *name = IMB_colormanagement_look_get_indexed_name(value);
+
+	if (name) {
+		BLI_strncpy(view->look, name, sizeof(view->look));
+	}
+}
+
+static EnumPropertyItem *rna_ColorManagedViewSettings_look_itemf(bContext *C, PointerRNA *ptr,
+                                                                 PropertyRNA *UNUSED(prop), int *free)
+{
+	EnumPropertyItem *items = NULL;
+	int totitem = 0;
+
+	IMB_colormanagement_look_items_add(&items, &totitem);
+	RNA_enum_item_end(&items, &totitem);
+
+	*free = TRUE;
+	return items;
+}
+
 static void rna_ColorManagedViewSettings_use_curves_set(PointerRNA *ptr, int value)
 {
 	ColorManagedViewSettings *view_settings = (ColorManagedViewSettings *) ptr->data;
@@ -947,6 +978,11 @@ static void rna_def_colormanage(BlenderRNA *brna)
 		{0, NULL, 0, NULL, NULL}
 	};
 
+	static EnumPropertyItem look_items[] = {
+		{0, "NONE", 0, "None", "Do not modify image in an artistics manner"},
+		{0, NULL, 0, NULL, NULL}
+	};
+
 	static EnumPropertyItem view_transform_items[] = {
 		{0, "NONE", 0, "None", "Do not perform any color transform on display, use old non-color managed technique for display"},
 		{0, NULL, 0, NULL, NULL}
@@ -973,12 +1009,20 @@ static void rna_def_colormanage(BlenderRNA *brna)
 	srna = RNA_def_struct(brna, "ColorManagedViewSettings", NULL);
 	RNA_def_struct_ui_text(srna, "ColorManagedViewSettings", "Color management settings used for displaying images on the display");
 
+	prop = RNA_def_property(srna, "look", PROP_ENUM, PROP_NONE);
+	RNA_def_property_enum_items(prop, look_items);
+	RNA_def_property_enum_funcs(prop, "rna_ColorManagedViewSettings_look_get",
+	                                  "rna_ColorManagedViewSettings_look_set",
+	                                  "rna_ColorManagedViewSettings_look_itemf");
+	RNA_def_property_ui_text(prop, "Look", "Additional tarnsform applyed before view transform for an artistics needs");
+	RNA_def_property_update(prop, NC_WINDOW, "rna_ColorManagement_update");
+
 	prop = RNA_def_property(srna, "view_transform", PROP_ENUM, PROP_NONE);
 	RNA_def_property_enum_items(prop, view_transform_items);
 	RNA_def_property_enum_funcs(prop, "rna_ColorManagedViewSettings_view_transform_get",
 	                                  "rna_ColorManagedViewSettings_view_transform_set",
 	                                  "rna_ColorManagedViewSettings_view_transform_itemf");
-	RNA_def_property_ui_text(prop, "View Transform", "View used ");
+	RNA_def_property_ui_text(prop, "View Transform", "View used when converting image to a display space");
 	RNA_def_property_update(prop, NC_WINDOW, "rna_ColorManagement_update");
 
 	prop = RNA_def_property(srna, "exposure", PROP_FLOAT, PROP_FACTOR);