46 lines
2.1 KiB
C
46 lines
2.1 KiB
C
// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "py/obj.h"
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#include "shared-module/displayio/Palette.h"
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typedef struct displayio_colorconverter {
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mp_obj_base_t base;
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bool dither;
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uint8_t input_colorspace;
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_displayio_colorspace_t output_colorspace;
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uint32_t transparent_color;
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// Cache the last computed color in case the are the same.
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const _displayio_colorspace_t *cached_colorspace;
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uint32_t cached_input_pixel;
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uint32_t cached_output_color;
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} displayio_colorconverter_t;
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bool displayio_colorconverter_needs_refresh(displayio_colorconverter_t *self);
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void displayio_colorconverter_finish_refresh(displayio_colorconverter_t *self);
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void displayio_colorconverter_convert(displayio_colorconverter_t *self, const _displayio_colorspace_t *colorspace, const displayio_input_pixel_t *input_pixel, displayio_output_pixel_t *output_color);
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uint32_t displayio_colorconverter_dither_noise_1(uint32_t n);
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uint32_t displayio_colorconverter_dither_noise_2(uint32_t x, uint32_t y);
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// Convert version that doesn't require a colorconverter object.
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void displayio_convert_color(const _displayio_colorspace_t *colorspace, bool dither, const displayio_input_pixel_t *input_pixel, displayio_output_pixel_t *output_color);
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uint16_t displayio_colorconverter_compute_rgb565(uint32_t color_rgb888);
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uint8_t displayio_colorconverter_compute_rgb332(uint32_t color_rgb888);
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uint8_t displayio_colorconverter_compute_rgbd(uint32_t color_rgb888);
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uint8_t displayio_colorconverter_compute_luma(uint32_t color_rgb888);
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uint8_t displayio_colorconverter_compute_chroma(uint32_t color_rgb888);
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uint8_t displayio_colorconverter_compute_hue(uint32_t color_rgb888);
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uint8_t displayio_colorconverter_compute_sixcolor(uint32_t color_rgb888);
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uint8_t displayio_colorconverter_compute_sevencolor(uint32_t color_rgb888);
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void displayio_colorconverter_compute_tricolor(const _displayio_colorspace_t *colorspace, uint8_t pixel_hue, uint32_t *color);
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