68 lines
3.2 KiB
C
68 lines
3.2 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_COLORCONVERTER_H
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#define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_COLORCONVERTER_H
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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_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_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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#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_COLORCONVERTER_H
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