Add random dithering to ColorConverter

2 files changed, 31 insertions, 0 deletions

diff --git a/shared-bindings/displayio/Display.c b/shared-bindings/displayio/Display.c
index 1eb1943b8..58d5e5123 100644
--- a/shared-bindings/displayio/Display.c
+++ b/shared-bindings/displayio/Display.c
@@ -346,6 +346,33 @@ const mp_obj_property_t displayio_display_auto_brightness_obj = {
               (mp_obj_t)&mp_const_none_obj},
 };
 
+//|   .. attribute:: dither
+//|
+//|     True when the display is dithered
+//|
+STATIC mp_obj_t displayio_display_obj_get_dither(mp_obj_t self_in) {
+    displayio_display_obj_t *self = native_display(self_in);
+    return mp_obj_new_bool(common_hal_displayio_display_get_dither(self));
+}
+MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_dither_obj, displayio_display_obj_get_dither);
+
+STATIC mp_obj_t displayio_display_obj_set_dither(mp_obj_t self_in, mp_obj_t dither) {
+    displayio_display_obj_t *self = native_display(self_in);
+
+    common_hal_displayio_display_set_dither(self, mp_obj_is_true(dither));
+
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_set_dither_obj, displayio_display_obj_set_dither);
+
+const mp_obj_property_t displayio_display_dither_obj = {
+    .base.type = &mp_type_property,
+    .proxy = {(mp_obj_t)&displayio_display_get_dither_obj,
+              (mp_obj_t)&displayio_display_set_dither_obj,
+              (mp_obj_t)&mp_const_none_obj},
+};
+
+
 //|   .. attribute:: width
 //|
 //|	Gets the width of the board
@@ -487,6 +514,7 @@ STATIC const mp_rom_map_elem_t displayio_display_locals_dict_table[] = {
 
     { MP_ROM_QSTR(MP_QSTR_brightness), MP_ROM_PTR(&displayio_display_brightness_obj) },
     { MP_ROM_QSTR(MP_QSTR_auto_brightness), MP_ROM_PTR(&displayio_display_auto_brightness_obj) },
+    { MP_ROM_QSTR(MP_QSTR_dither), MP_ROM_PTR(&displayio_display_dither_obj) },
 
     { MP_ROM_QSTR(MP_QSTR_width), MP_ROM_PTR(&displayio_display_width_obj) },
     { MP_ROM_QSTR(MP_QSTR_height), MP_ROM_PTR(&displayio_display_height_obj) },
diff --git a/shared-bindings/displayio/Display.h b/shared-bindings/displayio/Display.h
index a3c77e4e8..ca2b2d476 100644
--- a/shared-bindings/displayio/Display.h
+++ b/shared-bindings/displayio/Display.h
@@ -62,6 +62,9 @@ uint16_t common_hal_displayio_display_get_rotation(displayio_display_obj_t* self
 bool common_hal_displayio_display_get_auto_brightness(displayio_display_obj_t* self);
 void common_hal_displayio_display_set_auto_brightness(displayio_display_obj_t* self, bool auto_brightness);
 
+bool common_hal_displayio_display_get_dither(displayio_display_obj_t* self);
+void common_hal_displayio_display_set_dither(displayio_display_obj_t* self, bool dither);
+
 mp_float_t common_hal_displayio_display_get_brightness(displayio_display_obj_t* self);
 bool common_hal_displayio_display_set_brightness(displayio_display_obj_t* self, mp_float_t brightness);