// This file is part of the CircuitPython project: https://circuitpython.org

//

// SPDX-FileCopyrightText: Copyright (c) 2019 Scott Shawcroft for Adafruit Industries

//

// SPDX-License-Identifier: MIT

#pragma once

#include <stdbool.h>

#include <stdint.h>

#include "py/obj.h"

#include "shared-module/displayio/area.h"

#include "shared-module/displayio/Palette.h"

typedef struct {

mp_obj_base_t base;

mp_obj_t bitmap;

mp_obj_t pixel_shader;

int16_t x;

int16_t y;

uint16_t pixel_width;

uint16_t pixel_height;

uint16_t bitmap_width_in_tiles;

;

uint16_t tiles_in_bitmap;

uint16_t width_in_tiles;

uint16_t height_in_tiles;

uint16_t tile_width;

uint16_t tile_height;

uint16_t top_left_x;

uint16_t top_left_y;

void *tiles; // Can be either uint8_t* or uint16_t* depending on tiles_in_bitmap

const displayio_buffer_transform_t *absolute_transform;

displayio_area_t dirty_area; // Stored as a relative area until the refresh area is fetched.

displayio_area_t previous_area; // Stored as an absolute area.

displayio_area_t current_area; // Stored as an absolute area so it applies across frames.

bool partial_change : 1;

bool full_change : 1;

bool moved : 1;

bool inline_tiles : 1;

bool in_group : 1;

bool flip_x : 1;

bool flip_y : 1;

bool transpose_xy : 1;

bool hidden : 1;

bool hidden_by_parent : 1;

bool rendered_hidden : 1;

uint8_t padding : 6;

} displayio_tilegrid_t;

void displayio_tilegrid_set_hidden_by_parent(displayio_tilegrid_t *self, bool hidden);

// Updating the screen is a three stage process.

// The first stage is used to determine i

displayio_area_t *displayio_tilegrid_get_refresh_areas(displayio_tilegrid_t *self, displayio_area_t *tail);

// Area is always in absolute screen coordinates. Update transform is used to inform TileGrids how

// they relate to it.

bool displayio_tilegrid_fill_area(displayio_tilegrid_t *self, const _displayio_colorspace_t *colorspace, const displayio_area_t *area, uint32_t *mask, uint32_t *buffer);

void displayio_tilegrid_update_transform(displayio_tilegrid_t *group, const displayio_buffer_transform_t *parent_transform);

// Fills in area with the maximum bounds of all related pixels in the last rendered frame. Returns

// false if the tilegrid wasn't rendered in the last frame.

bool displayio_tilegrid_get_previous_area(displayio_tilegrid_t *self, displayio_area_t *area);

void displayio_tilegrid_finish_refresh(displayio_tilegrid_t *self);

bool displayio_tilegrid_get_rendered_hidden(displayio_tilegrid_t *self);

void displayio_tilegrid_validate_pixel_shader(mp_obj_t pixel_shader);

void displayio_tilegrid_mark_tile_dirty(displayio_tilegrid_t *self, uint16_t x, uint16_t y);