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/*
* This file is part of the Micro Python 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_AREA_H
#define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_AREA_H
#include <stdint.h>
#include <stdbool.h>
// Implementations are in area.c
typedef struct _displayio_area_t displayio_area_t;
struct _displayio_area_t {
int16_t x1;
int16_t y1;
int16_t x2; // Second point is exclusive.
int16_t y2;
const displayio_area_t *next; // Next area in the linked list.
};
typedef struct {
uint16_t x;
uint16_t y;
int8_t dx;
int8_t dy;
uint8_t scale;
uint16_t width;
uint16_t height;
bool mirror_x;
bool mirror_y;
bool transpose_xy;
} displayio_buffer_transform_t;
extern displayio_buffer_transform_t null_transform;
bool displayio_area_empty(const displayio_area_t *a);
void displayio_area_copy_coords(const displayio_area_t *src, displayio_area_t *dest);
void displayio_area_canon(displayio_area_t *a);
void displayio_area_union(const displayio_area_t *a,
const displayio_area_t *b,
displayio_area_t *u);
void displayio_area_copy(const displayio_area_t *src, displayio_area_t *dst);
void displayio_area_scale(displayio_area_t *area, uint16_t scale);
void displayio_area_shift(displayio_area_t *area, int16_t dx, int16_t dy);
bool displayio_area_compute_overlap(const displayio_area_t *a,
const displayio_area_t *b,
displayio_area_t *overlap);
uint16_t displayio_area_width(const displayio_area_t *area);
uint16_t displayio_area_height(const displayio_area_t *area);
uint32_t displayio_area_size(const displayio_area_t *area);
bool displayio_area_equal(const displayio_area_t *a, const displayio_area_t *b);
void displayio_area_transform_within(bool mirror_x, bool mirror_y, bool transpose_xy,
const displayio_area_t *original,
const displayio_area_t *whole,
displayio_area_t *transformed);
#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_AREA_H
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