Add support for grayscale displays that are < 8 bit depth.

This also improves Palette so it stores the original RGB888 colors.

Lastly, it adds I2CDisplay as a display bus to talk over I2C. Particularly
useful for the SSD1306.

Fixes #1828. Fixes #1956

1 files changed, 3 insertions, 3 deletions

diff --git a/shared-bindings/displayio/Display.h b/shared-bindings/displayio/Display.h
index 5a027561b..a60a0cf5a 100644
--- a/shared-bindings/displayio/Display.h
+++ b/shared-bindings/displayio/Display.h
@@ -38,9 +38,9 @@ extern const mp_obj_type_t displayio_display_type;
 
 void common_hal_displayio_display_construct(displayio_display_obj_t* self,
     mp_obj_t bus, uint16_t width, uint16_t height,
-    int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth,
+    int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth, bool grayscale, bool pixels_in_byte_share_row,
     uint8_t set_column_command, uint8_t set_row_command, uint8_t write_ram_command, uint8_t set_vertical_scroll,
-    uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin,
+    uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin, uint16_t brightness_command,
     mp_float_t brightness, bool auto_brightness,
     bool single_byte_bounds, bool data_as_commands);
 
@@ -54,7 +54,7 @@ bool displayio_display_begin_transaction(displayio_display_obj_t* self);
 void displayio_display_end_transaction(displayio_display_obj_t* self);
 
 // The second point of the region is exclusive.
-void displayio_display_set_region_to_update(displayio_display_obj_t* self, uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1);
+void displayio_display_set_region_to_update(displayio_display_obj_t* self, displayio_area_t* area);
 bool displayio_display_frame_queued(displayio_display_obj_t* self);
 
 bool displayio_display_refresh_queued(displayio_display_obj_t* self);