48 lines
1.1 KiB
C
48 lines
1.1 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 Rose Hooper
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//
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// SPDX-License-Identifier: MIT
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#pragma once
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#include "py/obj.h"
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#include "py/objarray.h"
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typedef struct {
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uint8_t r;
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uint8_t g;
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uint8_t b;
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uint8_t w;
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} pixelbuf_rgbw_t;
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typedef struct {
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uint8_t bpp;
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pixelbuf_rgbw_t byteorder;
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bool has_white;
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bool is_dotstar;
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mp_obj_t order_string;
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} pixelbuf_byteorder_details_t;
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typedef struct {
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mp_obj_base_t base;
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size_t pixel_count;
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uint16_t bytes_per_pixel;
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uint16_t scaled_brightness;
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pixelbuf_byteorder_details_t byteorder;
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mp_float_t brightness;
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mp_obj_t transmit_buffer_obj;
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// The post_brightness_buffer is offset into the buffer allocated in transmit_buffer_obj to
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// account for any header.
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uint8_t *post_brightness_buffer;
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uint8_t *pre_brightness_buffer;
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bool auto_write;
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} pixelbuf_pixelbuf_obj_t;
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#define PIXEL_R 0
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#define PIXEL_G 1
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#define PIXEL_B 2
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#define PIXEL_W 3
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#define DOTSTAR_LED_START 0b11100000
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#define DOTSTAR_LED_START_FULL_BRIGHT 0xFF
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