circuitpython/shared-module/displayio/display_core.h
Scott Shawcroft 7089ea4d65
Add address_little_endian for displayio
Add address_little_endian for epaper displays with little endian
(low byte first) addresses.

Also clears allocated display and display bus memory so it has a
known state. The acep member wasn't always set so it varied
accidentally.

Fixes #7560. May fix #7778. Fixes #5119.
2023-04-21 12:19:29 -07:00

105 lines
4.5 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 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.
*/
#ifndef MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_DISPLAY_CORE_H
#define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_DISPLAY_CORE_H
#include "shared-bindings/displayio/__init__.h"
#include "shared-bindings/displayio/Group.h"
#include "shared-module/displayio/area.h"
#define NO_COMMAND 0x100
typedef struct {
mp_obj_t bus;
displayio_group_t *current_group;
uint64_t last_refresh;
display_bus_bus_reset bus_reset;
display_bus_bus_free bus_free;
display_bus_begin_transaction begin_transaction;
display_bus_send send;
display_bus_end_transaction end_transaction;
displayio_buffer_transform_t transform;
displayio_area_t area;
uint16_t width;
uint16_t height;
uint16_t rotation;
uint16_t ram_width;
uint16_t ram_height;
_displayio_colorspace_t colorspace;
int16_t colstart;
int16_t rowstart;
// Refresh area related.
uint16_t column_command;
uint16_t row_command;
uint16_t set_current_column_command;
uint16_t set_current_row_command;
bool data_as_commands;
bool always_toggle_chip_select;
bool SH1107_addressing;
bool address_little_endian;
bool full_refresh; // New group means we need to refresh the whole display.
bool refresh_in_progress;
} displayio_display_core_t;
void displayio_display_core_construct(displayio_display_core_t *self,
mp_obj_t bus, uint16_t width, uint16_t height, uint16_t ram_width, uint16_t ram_height, int16_t colstart, int16_t rowstart, uint16_t rotation,
uint16_t color_depth, bool grayscale, bool pixels_in_byte_share_row, uint8_t bytes_per_cell, bool reverse_pixels_in_byte, bool reverse_bytes_in_word,
uint16_t column_command, uint16_t row_command, uint16_t set_current_column_command, uint16_t set_current_row_command,
bool data_as_commands, bool always_toggle_chip_select, bool SH1107_addressing, bool address_little_endian);
bool displayio_display_core_set_root_group(displayio_display_core_t *self, displayio_group_t *root_group);
uint16_t displayio_display_core_get_width(displayio_display_core_t *self);
uint16_t displayio_display_core_get_height(displayio_display_core_t *self);
void displayio_display_core_set_dither(displayio_display_core_t *self, bool dither);
bool displayio_display_core_get_dither(displayio_display_core_t *self);
void displayio_display_core_set_rotation(displayio_display_core_t *self, int rotation);
bool displayio_display_core_bus_free(displayio_display_core_t *self);
bool displayio_display_core_begin_transaction(displayio_display_core_t *self);
void displayio_display_core_end_transaction(displayio_display_core_t *self);
void displayio_display_core_set_region_to_update(displayio_display_core_t *self, displayio_area_t *area);
void release_display_core(displayio_display_core_t *self);
bool displayio_display_core_start_refresh(displayio_display_core_t *self);
void displayio_display_core_finish_refresh(displayio_display_core_t *self);
void displayio_display_core_collect_ptrs(displayio_display_core_t *self);
bool displayio_display_core_fill_area(displayio_display_core_t *self, displayio_area_t *area, uint32_t *mask, uint32_t *buffer);
bool displayio_display_core_clip_area(displayio_display_core_t *self, const displayio_area_t *area, displayio_area_t *clipped);
#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_DISPLAY_CORE_H