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90 lines
2.5 KiB
90 lines
2.5 KiB
//
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// Created by MightyPork on 2022/11/12.
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//
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#ifndef FRAMEBUFFER_H
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#define FRAMEBUFFER_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "framebuffer_config.h"
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#define FBSET 0xFF
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#define FBCLEAR 0x00
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typedef uint16_t fbsize_t;
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typedef uint8_t fbpos_t;
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/// Framebuffer backing array.
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///
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/// The format is the native format for SSD1306: array of bytes representing pixels in 8 rows at once, LSB is the topmost row.
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///
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/// a0 b0 ... til the display width
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/// a1 b1
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/// a2 b2
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/// ... ...
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/// a7 b7
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///
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/// and more bytes continue rows 8-15 and so on
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extern uint8_t fb[(FBH / 8) * FBW];
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/// Fill the entire screen with a byte pattern.
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/// Use 0xFF or 0x00 for a solid fill. Other patterns may be used to create horizontal stripes.
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void fb_fill(uint8_t pattern);
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/// Clear the display (fill with 0x00)
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static inline void fb_clear(void)
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{
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fb_fill(0);
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}
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/// Set a single pixel
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void fb_px(fbpos_t x, fbpos_t y, uint8_t color);
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/// Get pixel color
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uint8_t fb_getpx(fbpos_t x, fbpos_t y);
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/// Draw a horizontal line
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void fb_hline(fbpos_t x, fbpos_t y, fbpos_t w, uint8_t color);
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/// Draw a vertical line
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void fb_vline(fbpos_t x, fbpos_t y, fbpos_t h, uint8_t color);
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/// Draw a filled rect
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void fb_rect(fbpos_t x, fbpos_t y, fbpos_t w, fbpos_t h, uint8_t color);
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/// Draw a frame (unfilled rect)
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void fb_frame(fbpos_t x, fbpos_t y, fbpos_t w, fbpos_t h, fbpos_t thickness, uint8_t color);
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/// Draw a bitmap
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void fb_bitmap(fbpos_t x, fbpos_t y, fbpos_t w, fbpos_t h, const uint8_t *map, uint8_t color);
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/// Draw a 7-segment digit. Returns its width (without spacing)
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///
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/// \param x - pos X (left top)
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/// \param y - pos Y (left top)
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/// \param w - full digit width
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/// \param h - full digit height; will be adjusted down if needed
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/// \param th - thickness
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/// \param digit - digit 0-9
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/// \return width taken
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fbpos_t fb_7seg_dig(fbpos_t x, fbpos_t y, fbpos_t w, fbpos_t h, fbpos_t th, uint8_t digit, uint8_t color);
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/// Draw a 7-segment period. Returns its width (without spacing).
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/// Digit height is (w * 2 - th)
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///
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/// \param x - pos X (digit left top)
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/// \param y - pos Y (digit left top)
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/// \param w - full digit width
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/// \param h - full digit height; will be adjusted down if needed
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/// \param th - thickness
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/// \return width taken
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fbpos_t fb_7seg_period(fbpos_t x, fbpos_t y, fbpos_t w, fbpos_t h, fbpos_t th, uint8_t color);
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/// Output the framebuffer array `fb` to the display device.
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///
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/// The user must implement this
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extern void fb_blit(void);
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#endif //FRAMEBUFFER_H
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