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/*
* 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.
*/
#ifndef MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_PALETTE_H
#define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_PALETTE_H
#include <stdbool.h>
#include <stdint.h>
#include "py/obj.h"
typedef struct {
uint8_t depth;
uint8_t bytes_per_cell;
uint8_t tricolor_hue;
uint8_t tricolor_luma;
uint8_t grayscale_bit; // The lowest grayscale bit. Normally 8 - depth.
bool grayscale;
bool tricolor;
bool pixels_in_byte_share_row;
bool reverse_pixels_in_byte;
bool reverse_bytes_in_word;
bool dither;
} _displayio_colorspace_t;
typedef struct {
uint32_t rgb888;
uint16_t rgb565;
uint8_t luma;
uint8_t hue;
uint8_t chroma;
bool transparent; // This may have additional bits added later for blending.
} _displayio_color_t;
typedef struct {
uint32_t pixel;
uint16_t x;
uint16_t y;
uint8_t tile;
uint16_t tile_x;
uint16_t tile_y;
} displayio_input_pixel_t;
typedef struct {
uint32_t pixel;
bool opaque;
} displayio_output_pixel_t;
typedef struct displayio_palette {
mp_obj_base_t base;
_displayio_color_t *colors;
uint32_t color_count;
bool needs_refresh;
} displayio_palette_t;
// Returns false if color fetch did not succeed (out of range or transparent).
// Returns true if color is opaque, and sets color.
bool displayio_palette_get_color(displayio_palette_t *palette, const _displayio_colorspace_t *colorspace, uint32_t palette_index, uint32_t *color);
bool displayio_palette_needs_refresh(displayio_palette_t *self);
void displayio_palette_finish_refresh(displayio_palette_t *self);
#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_PALLETE_H
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