/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "shared-bindings/displayio/Display.h" #include #include "lib/utils/context_manager_helpers.h" #include "py/binary.h" #include "py/objproperty.h" #include "py/objtype.h" #include "py/runtime.h" #include "shared-bindings/displayio/Group.h" #include "shared-bindings/microcontroller/Pin.h" #include "shared-bindings/util.h" #include "shared-module/displayio/__init__.h" #include "supervisor/shared/translate.h" //| _DisplayBus = Union[FourWire, ParallelBus, I2CDisplay] //| """:py:class:`FourWire`, :py:class:`ParallelBus` or :py:class:`I2CDisplay`""" //| //| //| class Display: //| """Manage updating a display over a display bus //| //| This initializes a display and connects it into CircuitPython. Unlike other //| objects in CircuitPython, Display objects live until `displayio.release_displays()` //| is called. This is done so that CircuitPython can use the display itself. //| //| Most people should not use this class directly. Use a specific display driver instead that will //| contain the initialization sequence at minimum.""" //| //| def __init__(self, display_bus: _DisplayBus, init_sequence: ReadableBuffer, *, width: int, height: int, colstart: int = 0, rowstart: int = 0, rotation: int = 0, color_depth: int = 16, grayscale: bool = False, pixels_in_byte_share_row: bool = True, bytes_per_cell: int = 1, reverse_pixels_in_byte: bool = False, set_column_command: int = 0x2a, set_row_command: int = 0x2b, write_ram_command: int = 0x2c, set_vertical_scroll: int = 0, backlight_pin: Optional[microcontroller.Pin] = None, brightness_command: Optional[int] = None, brightness: float = 1.0, auto_brightness: bool = False, single_byte_bounds: bool = False, data_as_commands: bool = False, auto_refresh: bool = True, native_frames_per_second: int = 60) -> None: //| r"""Create a Display object on the given display bus (`FourWire`, `ParallelBus` or `I2CDisplay`). //| //| The ``init_sequence`` is bitpacked to minimize the ram impact. Every command begins with a //| command byte followed by a byte to determine the parameter count and if a delay is need after. //| When the top bit of the second byte is 1, the next byte will be the delay time in milliseconds. //| The remaining 7 bits are the parameter count excluding any delay byte. The third through final //| bytes are the remaining command parameters. The next byte will begin a new command definition. //| Here is a portion of ILI9341 init code: //| //| .. code-block:: python //| //| init_sequence = (b"\xe1\x0f\x00\x0E\x14\x03\x11\x07\x31\xC1\x48\x08\x0F\x0C\x31\x36\x0F" # Set Gamma //| b"\x11\x80\x78"# Exit Sleep then delay 0x78 (120ms) //| b"\x29\x80\x78"# Display on then delay 0x78 (120ms) //| ) //| display = displayio.Display(display_bus, init_sequence, width=320, height=240) //| //| The first command is 0xe1 with 15 (0xf) parameters following. The second and third are 0x11 and //| 0x29 respectively with delays (0x80) of 120ms (0x78) and no parameters. Multiple byte literals //| (b"") are merged together on load. The parens are needed to allow byte literals on subsequent //| lines. //| //| The initialization sequence should always leave the display memory access inline with the scan //| of the display to minimize tearing artifacts. //| //| :param display_bus: The bus that the display is connected to //| :type _DisplayBus: FourWire, ParallelBus or I2CDisplay //| :param ~_typing.ReadableBuffer init_sequence: Byte-packed initialization sequence. //| :param int width: Width in pixels //| :param int height: Height in pixels //| :param int colstart: The index if the first visible column //| :param int rowstart: The index if the first visible row //| :param int rotation: The rotation of the display in degrees clockwise. Must be in 90 degree increments (0, 90, 180, 270) //| :param int color_depth: The number of bits of color per pixel transmitted. (Some displays //| support 18 bit but 16 is easier to transmit. The last bit is extrapolated.) //| :param bool grayscale: True if the display only shows a single color. //| :param bool pixels_in_byte_share_row: True when pixels are less than a byte and a byte includes pixels from the same row of the display. When False, pixels share a column. //| :param int bytes_per_cell: Number of bytes per addressable memory location when color_depth < 8. When greater than one, bytes share a row or column according to pixels_in_byte_share_row. //| :param bool reverse_pixels_in_byte: Reverses the pixel order within each byte when color_depth < 8. Does not apply across multiple bytes even if there is more than one byte per cell (bytes_per_cell.) //| :param bool reverse_bytes_in_word: Reverses the order of bytes within a word when color_depth == 16 //| :param int set_column_command: Command used to set the start and end columns to update //| :param int set_row_command: Command used so set the start and end rows to update //| :param int write_ram_command: Command used to write pixels values into the update region. Ignored if data_as_commands is set. //| :param int set_vertical_scroll: Command used to set the first row to show //| :param microcontroller.Pin backlight_pin: Pin connected to the display's backlight //| :param int brightness_command: Command to set display brightness. Usually available in OLED controllers. //| :param float brightness: Initial display brightness. This value is ignored if auto_brightness is True. //| :param bool auto_brightness: If True, brightness is controlled via an ambient light sensor or other mechanism. //| :param bool single_byte_bounds: Display column and row commands use single bytes //| :param bool data_as_commands: Treat all init and boundary data as SPI commands. Certain displays require this. //| :param bool auto_refresh: Automatically refresh the screen //| :param int native_frames_per_second: Number of display refreshes per second that occur with the given init_sequence. //| :param bool backlight_on_high: If True, pulling the backlight pin high turns the backlight on.""" //| ... //| STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { enum { ARG_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_grayscale, ARG_pixels_in_byte_share_row, ARG_bytes_per_cell, ARG_reverse_pixels_in_byte, ARG_reverse_bytes_in_word, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin, ARG_brightness_command, ARG_brightness, ARG_auto_brightness, ARG_single_byte_bounds, ARG_data_as_commands, ARG_auto_refresh, ARG_native_frames_per_second, ARG_backlight_on_high }; static const mp_arg_t allowed_args[] = { { MP_QSTR_display_bus, MP_ARG_REQUIRED | MP_ARG_OBJ }, { MP_QSTR_init_sequence, MP_ARG_REQUIRED | MP_ARG_OBJ }, { MP_QSTR_width, MP_ARG_INT | MP_ARG_KW_ONLY | MP_ARG_REQUIRED, }, { MP_QSTR_height, MP_ARG_INT | MP_ARG_KW_ONLY | MP_ARG_REQUIRED, }, { MP_QSTR_colstart, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} }, { MP_QSTR_rowstart, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} }, { MP_QSTR_rotation, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} }, { MP_QSTR_color_depth, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 16} }, { MP_QSTR_grayscale, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} }, { MP_QSTR_pixels_in_byte_share_row, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} }, { MP_QSTR_bytes_per_cell, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 1} }, { MP_QSTR_reverse_pixels_in_byte, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} }, { MP_QSTR_reverse_bytes_in_word, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} }, { MP_QSTR_set_column_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2a} }, { MP_QSTR_set_row_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2b} }, { MP_QSTR_write_ram_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2c} }, { MP_QSTR_set_vertical_scroll, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x0} }, { MP_QSTR_backlight_pin, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} }, { MP_QSTR_brightness_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = NO_BRIGHTNESS_COMMAND} }, { MP_QSTR_brightness, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = MP_OBJ_NEW_SMALL_INT(1)} }, { MP_QSTR_auto_brightness, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} }, { MP_QSTR_single_byte_bounds, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} }, { MP_QSTR_data_as_commands, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} }, { MP_QSTR_auto_refresh, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} }, { MP_QSTR_native_frames_per_second, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 60} }, { MP_QSTR_backlight_on_high, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} }, }; mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); mp_obj_t display_bus = args[ARG_display_bus].u_obj; mp_buffer_info_t bufinfo; mp_get_buffer_raise(args[ARG_init_sequence].u_obj, &bufinfo, MP_BUFFER_READ); const mcu_pin_obj_t* backlight_pin = validate_obj_is_free_pin_or_none(args[ARG_backlight_pin].u_obj); mp_float_t brightness = mp_obj_get_float(args[ARG_brightness].u_obj); mp_int_t rotation = args[ARG_rotation].u_int; if (rotation % 90 != 0) { mp_raise_ValueError(translate("Display rotation must be in 90 degree increments")); } primary_display_t *disp = allocate_display_or_raise(); displayio_display_obj_t *self = &disp->display;; self->base.type = &displayio_display_type; common_hal_displayio_display_construct( self, display_bus, args[ARG_width].u_int, args[ARG_height].u_int, args[ARG_colstart].u_int, args[ARG_rowstart].u_int, rotation, args[ARG_color_depth].u_int, args[ARG_grayscale].u_bool, args[ARG_pixels_in_byte_share_row].u_bool, args[ARG_bytes_per_cell].u_bool, args[ARG_reverse_pixels_in_byte].u_bool, args[ARG_reverse_bytes_in_word].u_bool, args[ARG_set_column_command].u_int, args[ARG_set_row_command].u_int, args[ARG_write_ram_command].u_int, args[ARG_set_vertical_scroll].u_int, bufinfo.buf, bufinfo.len, MP_OBJ_TO_PTR(backlight_pin), args[ARG_brightness_command].u_int, brightness, args[ARG_auto_brightness].u_bool, args[ARG_single_byte_bounds].u_bool, args[ARG_data_as_commands].u_bool, args[ARG_auto_refresh].u_bool, args[ARG_native_frames_per_second].u_int, args[ARG_backlight_on_high].u_bool ); return self; } // Helper to ensure we have the native super class instead of a subclass. static displayio_display_obj_t* native_display(mp_obj_t display_obj) { mp_obj_t native_display = mp_instance_cast_to_native_base(display_obj, &displayio_display_type); mp_obj_assert_native_inited(native_display); return MP_OBJ_TO_PTR(native_display); } //| def show(self, group: Group) -> None: //| """Switches to displaying the given group of layers. When group is None, the default //| CircuitPython terminal will be shown. //| //| :param Group group: The group to show.""" //| ... //| STATIC mp_obj_t displayio_display_obj_show(mp_obj_t self_in, mp_obj_t group_in) { displayio_display_obj_t *self = native_display(self_in); displayio_group_t* group = NULL; if (group_in != mp_const_none) { group = MP_OBJ_TO_PTR(native_group(group_in)); } bool ok = common_hal_displayio_display_show(self, group); if (!ok) { mp_raise_ValueError(translate("Group already used")); } return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_show_obj, displayio_display_obj_show); //| def refresh(self, *, target_frames_per_second: int = 60, minimum_frames_per_second: int = 1) -> bool: //| """When auto refresh is off, waits for the target frame rate and then refreshes the display, //| returning True. If the call has taken too long since the last refresh call for the given //| target frame rate, then the refresh returns False immediately without updating the screen to //| hopefully help getting caught up. //| //| If the time since the last successful refresh is below the minimum frame rate, then an //| exception will be raised. Set minimum_frames_per_second to 0 to disable. //| //| When auto refresh is on, updates the display immediately. (The display will also update //| without calls to this.) //| //| :param int target_frames_per_second: How many times a second `refresh` should be called and the screen updated. //| :param int minimum_frames_per_second: The minimum number of times the screen should be updated per second.""" //| ... //| STATIC mp_obj_t displayio_display_obj_refresh(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { enum { ARG_target_frames_per_second, ARG_minimum_frames_per_second }; static const mp_arg_t allowed_args[] = { { MP_QSTR_target_frames_per_second, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 60} }, { MP_QSTR_minimum_frames_per_second, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} }, }; mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); displayio_display_obj_t *self = native_display(pos_args[0]); uint32_t maximum_ms_per_real_frame = 0xffffffff; mp_int_t minimum_frames_per_second = args[ARG_minimum_frames_per_second].u_int; if (minimum_frames_per_second > 0) { maximum_ms_per_real_frame = 1000 / minimum_frames_per_second; } return mp_obj_new_bool(common_hal_displayio_display_refresh(self, 1000 / args[ARG_target_frames_per_second].u_int, maximum_ms_per_real_frame)); } MP_DEFINE_CONST_FUN_OBJ_KW(displayio_display_refresh_obj, 1, displayio_display_obj_refresh); //| auto_refresh: bool //| """True when the display is refreshed automatically.""" //| STATIC mp_obj_t displayio_display_obj_get_auto_refresh(mp_obj_t self_in) { displayio_display_obj_t *self = native_display(self_in); return mp_obj_new_bool(common_hal_displayio_display_get_auto_refresh(self)); } MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_auto_refresh_obj, displayio_display_obj_get_auto_refresh); STATIC mp_obj_t displayio_display_obj_set_auto_refresh(mp_obj_t self_in, mp_obj_t auto_refresh) { displayio_display_obj_t *self = native_display(self_in); common_hal_displayio_display_set_auto_refresh(self, mp_obj_is_true(auto_refresh)); return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_set_auto_refresh_obj, displayio_display_obj_set_auto_refresh); const mp_obj_property_t displayio_display_auto_refresh_obj = { .base.type = &mp_type_property, .proxy = {(mp_obj_t)&displayio_display_get_auto_refresh_obj, (mp_obj_t)&displayio_display_set_auto_refresh_obj, (mp_obj_t)&mp_const_none_obj}, }; //| brightness: float //| """The brightness of the display as a float. 0.0 is off and 1.0 is full brightness. When //| `auto_brightness` is True, the value of `brightness` will change automatically. //| If `brightness` is set, `auto_brightness` will be disabled and will be set to False.""" //| STATIC mp_obj_t displayio_display_obj_get_brightness(mp_obj_t self_in) { displayio_display_obj_t *self = native_display(self_in); mp_float_t brightness = common_hal_displayio_display_get_brightness(self); if (brightness < 0) { mp_raise_RuntimeError(translate("Brightness not adjustable")); } return mp_obj_new_float(brightness); } MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_brightness_obj, displayio_display_obj_get_brightness); STATIC mp_obj_t displayio_display_obj_set_brightness(mp_obj_t self_in, mp_obj_t brightness_obj) { displayio_display_obj_t *self = native_display(self_in); common_hal_displayio_display_set_auto_brightness(self, false); mp_float_t brightness = mp_obj_get_float(brightness_obj); if (brightness < 0 || brightness > 1.0) { mp_raise_ValueError(translate("Brightness must be 0-1.0")); } bool ok = common_hal_displayio_display_set_brightness(self, brightness); if (!ok) { mp_raise_RuntimeError(translate("Brightness not adjustable")); } return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_set_brightness_obj, displayio_display_obj_set_brightness); const mp_obj_property_t displayio_display_brightness_obj = { .base.type = &mp_type_property, .proxy = {(mp_obj_t)&displayio_display_get_brightness_obj, (mp_obj_t)&displayio_display_set_brightness_obj, (mp_obj_t)&mp_const_none_obj}, }; //| auto_brightness: bool //| """True when the display brightness is adjusted automatically, based on an ambient //| light sensor or other method. Note that some displays may have this set to True by default, //| but not actually implement automatic brightness adjustment. `auto_brightness` is set to False //| if `brightness` is set manually.""" //| STATIC mp_obj_t displayio_display_obj_get_auto_brightness(mp_obj_t self_in) { displayio_display_obj_t *self = native_display(self_in); return mp_obj_new_bool(common_hal_displayio_display_get_auto_brightness(self)); } MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_auto_brightness_obj, displayio_display_obj_get_auto_brightness); STATIC mp_obj_t displayio_display_obj_set_auto_brightness(mp_obj_t self_in, mp_obj_t auto_brightness) { displayio_display_obj_t *self = native_display(self_in); common_hal_displayio_display_set_auto_brightness(self, mp_obj_is_true(auto_brightness)); return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_set_auto_brightness_obj, displayio_display_obj_set_auto_brightness); const mp_obj_property_t displayio_display_auto_brightness_obj = { .base.type = &mp_type_property, .proxy = {(mp_obj_t)&displayio_display_get_auto_brightness_obj, (mp_obj_t)&displayio_display_set_auto_brightness_obj, (mp_obj_t)&mp_const_none_obj}, }; //| width: int //| """Gets the width of the board""" //| STATIC mp_obj_t displayio_display_obj_get_width(mp_obj_t self_in) { displayio_display_obj_t *self = native_display(self_in); return MP_OBJ_NEW_SMALL_INT(common_hal_displayio_display_get_width(self)); } MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_width_obj, displayio_display_obj_get_width); const mp_obj_property_t displayio_display_width_obj = { .base.type = &mp_type_property, .proxy = {(mp_obj_t)&displayio_display_get_width_obj, (mp_obj_t)&mp_const_none_obj, (mp_obj_t)&mp_const_none_obj}, }; //| height: int //| """Gets the height of the board""" //| STATIC mp_obj_t displayio_display_obj_get_height(mp_obj_t self_in) { displayio_display_obj_t *self = native_display(self_in); return MP_OBJ_NEW_SMALL_INT(common_hal_displayio_display_get_height(self)); } MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_height_obj, displayio_display_obj_get_height); const mp_obj_property_t displayio_display_height_obj = { .base.type = &mp_type_property, .proxy = {(mp_obj_t)&displayio_display_get_height_obj, (mp_obj_t)&mp_const_none_obj, (mp_obj_t)&mp_const_none_obj}, }; //| rotation: int //| """The rotation of the display as an int in degrees.""" //| STATIC mp_obj_t displayio_display_obj_get_rotation(mp_obj_t self_in) { displayio_display_obj_t *self = native_display(self_in); return MP_OBJ_NEW_SMALL_INT(common_hal_displayio_display_get_rotation(self)); } MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_rotation_obj, displayio_display_obj_get_rotation); STATIC mp_obj_t displayio_display_obj_set_rotation(mp_obj_t self_in, mp_obj_t value) { displayio_display_obj_t *self = native_display(self_in); common_hal_displayio_display_set_rotation(self, mp_obj_get_int(value)); return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_set_rotation_obj, displayio_display_obj_set_rotation); const mp_obj_property_t displayio_display_rotation_obj = { .base.type = &mp_type_property, .proxy = {(mp_obj_t)&displayio_display_get_rotation_obj, (mp_obj_t)&displayio_display_set_rotation_obj, (mp_obj_t)&mp_const_none_obj}, }; //| bus: _DisplayBus //| """The bus being used by the display""" //| //| STATIC mp_obj_t displayio_display_obj_get_bus(mp_obj_t self_in) { displayio_display_obj_t *self = native_display(self_in); return common_hal_displayio_display_get_bus(self); } MP_DEFINE_CONST_FUN_OBJ_1(displayio_display_get_bus_obj, displayio_display_obj_get_bus); const mp_obj_property_t displayio_display_bus_obj = { .base.type = &mp_type_property, .proxy = {(mp_obj_t)&displayio_display_get_bus_obj, (mp_obj_t)&mp_const_none_obj, (mp_obj_t)&mp_const_none_obj}, }; //| def fill_row(self, y: int, buffer: WriteableBuffer) -> WriteableBuffer: //| """Extract the pixels from a single row //| //| :param int y: The top edge of the area //| :param ~_typing.WriteableBuffer buffer: The buffer in which to place the pixel data""" //| ... //| STATIC mp_obj_t displayio_display_obj_fill_row(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { enum { ARG_y, ARG_buffer }; static const mp_arg_t allowed_args[] = { { MP_QSTR_y, MP_ARG_INT | MP_ARG_REQUIRED, {.u_int = -1} }, { MP_QSTR_buffer, MP_ARG_OBJ | MP_ARG_REQUIRED, {} }, }; mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); displayio_display_obj_t *self = native_display(pos_args[0]); mp_int_t y = args[ARG_y].u_int; mp_obj_t *result = args[ARG_buffer].u_obj; mp_buffer_info_t bufinfo; mp_get_buffer_raise(result, &bufinfo, MP_BUFFER_WRITE); if (bufinfo.typecode != BYTEARRAY_TYPECODE) { mp_raise_ValueError(translate("Buffer is not a bytearray.")); } if (self->core.colorspace.depth != 16) { mp_raise_ValueError(translate("Display must have a 16 bit colorspace.")); } displayio_area_t area = { .x1 = 0, .y1 = y, .x2 = self->core.width, .y2 = y + 1 }; uint8_t pixels_per_word = (sizeof(uint32_t) * 8) / self->core.colorspace.depth; uint16_t buffer_size = self->core.width / pixels_per_word; uint16_t pixels_per_buffer = displayio_area_size(&area); if (pixels_per_buffer % pixels_per_word) { buffer_size += 1; } uint32_t *result_buffer = bufinfo.buf; size_t result_buffer_size = bufinfo.len; if (result_buffer_size >= (buffer_size * 4)) { volatile uint32_t mask_length = (pixels_per_buffer / 32) + 1; uint32_t mask[mask_length]; for (uint16_t k = 0; k < mask_length; k++) { mask[k] = 0x00000000; } displayio_display_core_fill_area(&self->core, &area, mask, result_buffer); return result; } else { mp_raise_ValueError(translate("Buffer is too small")); } } MP_DEFINE_CONST_FUN_OBJ_KW(displayio_display_fill_row_obj, 1, displayio_display_obj_fill_row); STATIC const mp_rom_map_elem_t displayio_display_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_show), MP_ROM_PTR(&displayio_display_show_obj) }, { MP_ROM_QSTR(MP_QSTR_refresh), MP_ROM_PTR(&displayio_display_refresh_obj) }, { MP_ROM_QSTR(MP_QSTR_fill_row), MP_ROM_PTR(&displayio_display_fill_row_obj) }, { MP_ROM_QSTR(MP_QSTR_auto_refresh), MP_ROM_PTR(&displayio_display_auto_refresh_obj) }, { 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_width), MP_ROM_PTR(&displayio_display_width_obj) }, { MP_ROM_QSTR(MP_QSTR_height), MP_ROM_PTR(&displayio_display_height_obj) }, { MP_ROM_QSTR(MP_QSTR_rotation), MP_ROM_PTR(&displayio_display_rotation_obj) }, { MP_ROM_QSTR(MP_QSTR_bus), MP_ROM_PTR(&displayio_display_bus_obj) }, }; STATIC MP_DEFINE_CONST_DICT(displayio_display_locals_dict, displayio_display_locals_dict_table); const mp_obj_type_t displayio_display_type = { { &mp_type_type }, .name = MP_QSTR_Display, .make_new = displayio_display_make_new, .locals_dict = (mp_obj_dict_t*)&displayio_display_locals_dict, };