98 lines
3.0 KiB
C
98 lines
3.0 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) 2017 Glenn Ruben Bakke
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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 DISPLAY_FRAMEBUFFER_H__
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#define DISPLAY_FRAMEBUFFER_H__
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#include <stdint.h>
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#include <stdbool.h>
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typedef struct {
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uint8_t bit0 : 1;
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uint8_t bit1 : 1;
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uint8_t bit2 : 1;
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uint8_t bit3 : 1;
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uint8_t bit4 : 1;
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uint8_t bit5 : 1;
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uint8_t bit6 : 1;
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uint8_t bit7 : 1;
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} bits_le_t;
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typedef struct {
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uint8_t bit7 : 1;
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uint8_t bit6 : 1;
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uint8_t bit5 : 1;
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uint8_t bit4 : 1;
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uint8_t bit3 : 1;
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uint8_t bit2 : 1;
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uint8_t bit1 : 1;
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uint8_t bit0 : 1;
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} bits_be_t;
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typedef struct {
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union {
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uint8_t byte;
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bits_le_t bits_le;
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bits_be_t bits_be;
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};
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} framebuffer_byte_t;
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typedef enum {
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FRAMEBUFFER_LINE_DIR_HORIZONTAL,
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FRAMEBUFFER_LINE_DIR_VERTICAL
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} framebuffer_line_orientation_t;
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typedef struct {
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framebuffer_byte_t * fb_new;
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framebuffer_byte_t * fb_old;
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uint16_t fb_stride;
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bool fb_double;
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framebuffer_byte_t * fb_dirty;
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uint16_t fb_dirty_stride;
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uint16_t fb_orientation;
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uint16_t screen_height;
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uint16_t screen_width;
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framebuffer_line_orientation_t line_orientation;
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} framebuffer_t;
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typedef struct {
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uint16_t width;
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uint16_t height;
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framebuffer_line_orientation_t line_orientation;
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bool double_buffer;
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} framebuffer_init_t;
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void framebuffer_init(framebuffer_t * p_fb, framebuffer_init_t * p_init_conf);
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void framebuffer_deinit(framebuffer_t * p_fb);
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void framebuffer_flip(framebuffer_t * p_fb);
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void framebuffer_pixel_set(framebuffer_t * p_fb, uint16_t x, uint16_t y);
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void framebuffer_pixel_clear(framebuffer_t * p_fb, uint16_t x, uint16_t y);
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void framebuffer_clear(framebuffer_t * p_fb);
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void framebuffer_fill(framebuffer_t * p_fb);
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#endif // DISPLAY_FRAMEBUFFER_H__
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