Code formatting fixed
This commit is contained in:
UncleRus
parent
1a443195fd
commit
fa5166a48c
2 changed files with 127 additions and 129 deletions
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@ -3,10 +3,11 @@
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*
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* Copyright (c) 2016 urx (https://github.com/urx),
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* Ruslan V. Uss (https://github.com/UncleRus)
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* Zaltora (https://github.com/Zaltora)
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*
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* MIT Licensed as described in the file LICENSE
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*
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* @todo Scrolling, fonts
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* @todo HW scrolling, sprites
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*/
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#include "ssd1306.h"
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#include <stdio.h>
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@ -428,7 +429,7 @@ int ssd1306_draw_pixel(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ss
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default:
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break;
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}
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return 0 ;
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return 0;
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}
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int ssd1306_draw_hline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, uint8_t w, ssd1306_color_t color)
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@ -474,7 +475,7 @@ int ssd1306_draw_hline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ui
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default:
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break;
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}
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return 0 ;
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return 0;
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}
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int ssd1306_draw_vline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, uint8_t h, ssd1306_color_t color)
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@ -527,11 +528,11 @@ int ssd1306_draw_vline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ui
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{
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case OLED_COLOR_WHITE:
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do
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{
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{
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fb[index] = 0xff;
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index += dev->width;
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t -= 8;
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} while (t >= 8);
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} while (t >= 8);
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break;
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case OLED_COLOR_BLACK:
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do
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@ -553,10 +554,10 @@ int ssd1306_draw_vline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ui
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break;
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}
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}
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if (t) // // partial line at bottom
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if (t) // partial line at bottom
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{
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mod = t & 7;
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static const uint8_t postmask[8] = {0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F };
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static const uint8_t postmask[8] = { 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F };
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mask = postmask[mod];
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switch (color)
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{
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@ -572,8 +573,6 @@ int ssd1306_draw_vline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ui
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default:
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break;
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}
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}
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return 0;
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}
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@ -588,7 +587,6 @@ int ssd1306_draw_rectangle(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y
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if ((err = ssd1306_draw_vline(dev, fb, x, y, h, color)))
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return err;
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return ssd1306_draw_vline(dev, fb, x + w - 1, y, h, color);
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}
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@ -600,13 +598,12 @@ int ssd1306_fill_rectangle(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y
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for (i = x; i < x + w; ++i)
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if ((err = ssd1306_draw_vline(dev, fb, i, y, h, color)))
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return err;
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return 0 ;
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return 0;
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}
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int ssd1306_draw_circle(const ssd1306_t *dev, uint8_t *fb, int8_t x0, int8_t y0, uint8_t r, ssd1306_color_t color)
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{
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// Refer to http://en.wikipedia.org/wiki/Midpoint_circle_algorithm for the algorithm
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int8_t x = r;
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int8_t y = 1;
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int16_t radius_err = 1 - x;
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@ -649,18 +646,16 @@ int ssd1306_draw_circle(const ssd1306_t *dev, uint8_t *fb, int8_t x0, int8_t y0,
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return err;
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}
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++y;
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if (radius_err < 0)
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{
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if (radius_err < 0) {
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radius_err += 2 * y + 1;
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}
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else
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{
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else {
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--x;
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radius_err += 2 * (y - x + 1);
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}
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}
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return 0 ;
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return 0;
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}
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int ssd1306_fill_circle(const ssd1306_t *dev, uint8_t *fb, int8_t x0, int8_t y0, uint8_t r, ssd1306_color_t color)
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@ -690,12 +685,10 @@ int ssd1306_fill_circle(const ssd1306_t *dev, uint8_t *fb, int8_t x0, int8_t y0,
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return err;
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}
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++x;
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if (radius_err < 0)
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{
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if (radius_err < 0) {
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radius_err += 2 * x + 1;
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}
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else
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{
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else {
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--y;
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radius_err += 2 * (x - y + 1);
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}
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@ -723,29 +716,28 @@ int ssd1306_fill_circle(const ssd1306_t *dev, uint8_t *fb, int8_t x0, int8_t y0,
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if ((err = ssd1306_draw_hline(dev, fb, x0 - x, y0 + y, x - x1 + 1, color)))
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return err;
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++y;
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if (radius_err < 0)
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{
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if (radius_err < 0) {
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radius_err += 2 * y + 1;
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}
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else
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{
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else {
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--x;
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radius_err += 2 * (y - x + 1);
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}
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}
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}
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return 0 ;
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return 0;
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}
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int ssd1306_draw_line(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t y0, int16_t x1, int16_t y1, ssd1306_color_t color) {
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int ssd1306_draw_line(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t y0,
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int16_t x1, int16_t y1, ssd1306_color_t color)
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{
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if ((x0 >= dev->width) || (x0 < 0) || (y0 >= dev->height) || (y0 < 0))
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return -EINVAL;
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if ((x1 >= dev->width) || (x1 < 0) || (y1 >= dev->height) || (y1 < 0))
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return -EINVAL;
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int err ;
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int16_t steep = abs(y1 - y0) > abs(x1 - x0);
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int err;
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bool steep = abs(y1 - y0) > abs(x1 - x0);
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if (steep) {
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swap(x0, y0);
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swap(x1, y1);
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@ -786,8 +778,11 @@ int ssd1306_draw_line(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t y0,
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return 0;
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}
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int ssd1306_draw_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, ssd1306_color_t color) {
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int err ;
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int ssd1306_draw_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0,
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int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2,
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ssd1306_color_t color)
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{
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int err;
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if ((err = ssd1306_draw_line(dev, fb, x0, y0, x1, y1, color)))
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return err;
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if ((err = ssd1306_draw_line(dev, fb, x1, y1, x2, y2, color)))
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@ -795,91 +790,95 @@ int ssd1306_draw_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t
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return ssd1306_draw_line(dev, fb, x2, y2, x0, y0, color);
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}
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int ssd1306_fill_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t y0,int16_t x1, int16_t y1, int16_t x2, int16_t y2, ssd1306_color_t color) {
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int ssd1306_fill_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0,
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int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2,
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ssd1306_color_t color)
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{
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int16_t a, b, y, last;
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int err;
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int16_t a, b, y, last;
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int err ;
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// Sort coordinates by Y order (y2 >= y1 >= y0)
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if (y0 > y1) {
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swap(y0, y1); swap(x0, x1);
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}
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if (y1 > y2) {
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swap(y2, y1); swap(x2, x1);
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}
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if (y0 > y1) {
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swap(y0, y1); swap(x0, x1);
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}
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// Sort coordinates by Y order (y2 >= y1 >= y0)
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if (y0 > y1) {
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swap(y0, y1); swap(x0, x1);
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}
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if (y1 > y2) {
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swap(y2, y1); swap(x2, x1);
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}
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if (y0 > y1) {
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swap(y0, y1); swap(x0, x1);
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}
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if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing
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a = b = x0;
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if (x1 < a) a = x1;
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else if (x1 > b) b = x1;
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if (x2 < a) a = x2;
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else if (x2 > b) b = x2;
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if ((err = ssd1306_draw_hline(dev, fb, a, y0, b - a + 1, color)))
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return err;
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return 0;
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}
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if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing
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a = b = x0;
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if(x1 < a) a = x1;
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else if(x1 > b) b = x1;
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if(x2 < a) a = x2;
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else if(x2 > b) b = x2;
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if ((err = ssd1306_draw_hline(dev, fb, a, y0, b-a+1, color)))
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return err;
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return 0;
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}
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int16_t
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dx01 = x1 - x0,
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dy01 = y1 - y0,
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dx02 = x2 - x0,
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dy02 = y2 - y0,
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dx12 = x2 - x1,
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dy12 = y2 - y1,
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sa = 0,
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sb = 0;
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int16_t
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dx01 = x1 - x0,
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dy01 = y1 - y0,
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dx02 = x2 - x0,
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dy02 = y2 - y0,
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dx12 = x2 - x1,
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dy12 = y2 - y1,
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sa = 0,
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sb = 0;
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// For upper part of triangle, find scanline crossings for segments
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// 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
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// is included here (and second loop will be skipped, avoiding a /0
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// error there), otherwise scanline y1 is skipped here and handled
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// in the second loop...which also avoids a /0 error here if y0=y1
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// (flat-topped triangle).
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if(y1 == y2) last = y1; // Include y1 scanline
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else last = y1-1; // Skip it
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// For upper part of triangle, find scanline crossings for segments
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// 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
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// is included here (and second loop will be skipped, avoiding a /0
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// error there), otherwise scanline y1 is skipped here and handled
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// in the second loop...which also avoids a /0 error here if y0=y1
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// (flat-topped triangle).
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if (y1 == y2) last = y1; // Include y1 scanline
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else last = y1 - 1; // Skip it
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for (y = y0; y <= last; y++) {
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a = x0 + sa / dy01;
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b = x0 + sb / dy02;
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sa += dx01;
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sb += dx02;
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/* longhand:
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a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
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b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
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a = x0 + sa / dy01;
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b = x0 + sb / dy02;
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sa += dx01;
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sb += dx02;
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/* longhand:
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a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
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b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
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*/
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if(a > b) swap(a,b);
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if ((err = ssd1306_draw_hline(dev, fb, a, y, b-a+1, color)))
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return err;
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}
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if (a > b) swap(a, b);
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if ((err = ssd1306_draw_hline(dev, fb, a, y, b - a + 1, color)))
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return err;
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}
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// For lower part of triangle, find scanline crossings for segments
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// 0-2 and 1-2. This loop is skipped if y1=y2.
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sa = dx12 * (y - y1);
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sb = dx02 * (y - y0);
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// For lower part of triangle, find scanline crossings for segments
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// 0-2 and 1-2. This loop is skipped if y1=y2.
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sa = dx12 * (y - y1);
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sb = dx02 * (y - y0);
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for (; y <= y2; y++) {
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a = x1 + sa / dy12;
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b = x0 + sb / dy02;
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sa += dx12;
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sb += dx02;
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/* longhand:
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a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
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b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
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a = x1 + sa / dy12;
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b = x0 + sb / dy02;
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sa += dx12;
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sb += dx02;
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/* longhand:
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a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
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b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
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*/
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if(a > b) swap(a,b);
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if ((err = ssd1306_draw_hline(dev, fb, a, y, b-a+1, color)))
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if (a > b) swap(a, b);
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if ((err = ssd1306_draw_hline(dev, fb, a, y, b - a + 1, color)))
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return err;
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}
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return 0 ;
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}
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return 0;
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}
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uint8_t ssd1306_draw_char(const ssd1306_t *dev, uint8_t *fb, const font_info_t *font, uint8_t x, uint8_t y, char c, ssd1306_color_t foreground, ssd1306_color_t background)
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uint8_t ssd1306_draw_char(const ssd1306_t *dev, uint8_t *fb,
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const font_info_t *font, uint8_t x, uint8_t y, char c,
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ssd1306_color_t foreground, ssd1306_color_t background)
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{
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uint8_t i, j;
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const uint8_t *bitmap;
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uint8_t line = 0 ;
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uint8_t line = 0;
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if (font == NULL)
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return 0;
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@ -889,20 +888,15 @@ uint8_t ssd1306_draw_char(const ssd1306_t *dev, uint8_t *fb, const font_info_t *
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return 0;
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bitmap = font->bitmap + d->offset;
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for (j = 0; j < font->height; ++j)
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{
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for (i = 0; i < d->width; ++i)
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{
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if (i % 8 == 0)
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{
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for (j = 0; j < font->height; ++j) {
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for (i = 0; i < d->width; ++i) {
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if (i % 8 == 0) {
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line = bitmap[(d->width + 7) / 8 * j + i / 8]; // line data
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}
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if (line & 0x80)
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{
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if (line & 0x80) {
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ssd1306_draw_pixel(dev, fb, x + i, y + j, foreground);
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}
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else
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{
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else {
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switch (background)
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{
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case OLED_COLOR_TRANSPARENT:
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@ -923,7 +917,9 @@ uint8_t ssd1306_draw_char(const ssd1306_t *dev, uint8_t *fb, const font_info_t *
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return d->width;
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}
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uint8_t ssd1306_draw_string(const ssd1306_t *dev, uint8_t *fb, const font_info_t *font, uint8_t x, uint8_t y, char *str, ssd1306_color_t foreground, ssd1306_color_t background)
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uint8_t ssd1306_draw_string(const ssd1306_t *dev, uint8_t *fb,
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const font_info_t *font, uint8_t x, uint8_t y, char *str,
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ssd1306_color_t foreground, ssd1306_color_t background)
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{
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uint8_t t = x;
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@ -936,7 +932,6 @@ uint8_t ssd1306_draw_string(const ssd1306_t *dev, uint8_t *fb, const font_info_t
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++str;
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if (*str)
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x += font->c;
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}
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return (x - t);
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return x - t;
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}
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@ -3,6 +3,7 @@
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*
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* Copyright (c) 2016 urx (https://github.com/urx),
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* Ruslan V. Uss (https://github.com/UncleRus)
|
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* Zaltora (https://github.com/Zaltora)
|
||||
*
|
||||
* MIT Licensed as described in the file LICENSE
|
||||
*/
|
||||
|
|
@ -289,7 +290,7 @@ int ssd1306_set_whole_display_lighting(const ssd1306_t *dev, bool light);
|
|||
/**
|
||||
* Draw one pixel
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x X coordinate
|
||||
* @param y Y coordinate
|
||||
* @param color Color of the pixel
|
||||
|
|
@ -300,7 +301,7 @@ int ssd1306_draw_pixel(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ss
|
|||
/**
|
||||
* Draw a horizontal line
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x X coordinate or starting (left) point
|
||||
* @param y Y coordinate or starting (left) point
|
||||
* @param w Line width
|
||||
|
|
@ -312,7 +313,7 @@ int ssd1306_draw_hline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ui
|
|||
/**
|
||||
* Draw a vertical line
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x X coordinate or starting (top) point
|
||||
* @param y Y coordinate or starting (top) point
|
||||
* @param h Line height
|
||||
|
|
@ -324,7 +325,7 @@ int ssd1306_draw_vline(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y, ui
|
|||
/**
|
||||
* Draw a line
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x0 First x point coordinate
|
||||
* @param y0 First y point coordinate
|
||||
* @param x1 Second x point coordinate
|
||||
|
|
@ -337,7 +338,7 @@ int ssd1306_draw_line(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t y0,
|
|||
/**
|
||||
* Draw a rectangle
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x X coordinate or starting (top left) point
|
||||
* @param y Y coordinate or starting (top left) point
|
||||
* @param w Rectangle width
|
||||
|
|
@ -350,7 +351,7 @@ int ssd1306_draw_rectangle(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y
|
|||
/**
|
||||
* Draw a filled rectangle
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x X coordinate or starting (top left) point
|
||||
* @param y Y coordinate or starting (top left) point
|
||||
* @param w Rectangle width
|
||||
|
|
@ -363,7 +364,7 @@ int ssd1306_fill_rectangle(const ssd1306_t *dev, uint8_t *fb, int8_t x, int8_t y
|
|||
/**
|
||||
* Draw a circle
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x0 X coordinate or center
|
||||
* @param y0 Y coordinate or center
|
||||
* @param r Radius
|
||||
|
|
@ -375,7 +376,7 @@ int ssd1306_draw_circle(const ssd1306_t *dev, uint8_t *fb, int8_t x0, int8_t y0,
|
|||
/**
|
||||
* Draw a filled circle
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x0 X coordinate or center
|
||||
* @param y0 Y coordinate or center
|
||||
* @param r Radius
|
||||
|
|
@ -387,7 +388,7 @@ int ssd1306_fill_circle(const ssd1306_t *dev, uint8_t *fb, int8_t x0, int8_t y0,
|
|||
/**
|
||||
* Draw a triangle
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x0 First x point coordinate
|
||||
* @param y0 First y point coordinate
|
||||
* @param x1 Second x point coordinate
|
||||
|
|
@ -402,7 +403,7 @@ int ssd1306_draw_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t
|
|||
/**
|
||||
* Draw a filled triangle
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param x0 First x point coordinate
|
||||
* @param y0 First y point coordinate
|
||||
* @param x1 Second x point coordinate
|
||||
|
|
@ -417,7 +418,8 @@ int ssd1306_fill_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t
|
|||
/**
|
||||
* Draw one character using currently selected font
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param font Pointer to font info structure
|
||||
* @param x X position of character (top-left corner)
|
||||
* @param y Y position of character (top-left corner)
|
||||
* @param c The character to draw
|
||||
|
|
@ -425,20 +427,21 @@ int ssd1306_fill_triangle(const ssd1306_t *dev, uint8_t *fb, int16_t x0, int16_t
|
|||
* @param background Background color
|
||||
* @return Width of the character
|
||||
*/
|
||||
uint8_t ssd1306_draw_char(const ssd1306_t *dev, uint8_t *fb, const font_info_t *fnt, uint8_t x, uint8_t y, char c, ssd1306_color_t foreground, ssd1306_color_t background);
|
||||
uint8_t ssd1306_draw_char(const ssd1306_t *dev, uint8_t *fb, const font_info_t *font, uint8_t x, uint8_t y, char c, ssd1306_color_t foreground, ssd1306_color_t background);
|
||||
|
||||
/**
|
||||
* Draw one character using currently selected font
|
||||
* @param dev Pointer to device descriptor
|
||||
* @param buf Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param fb Pointer to framebuffer. Framebuffer size = width * height / 8
|
||||
* @param font Pointer to font info structure
|
||||
* @param x X position of character (top-left corner)
|
||||
* @param y Y position of character (top-left corner)
|
||||
* @param str The string to draw
|
||||
* @param str The string to draw
|
||||
* @param foreground Character color
|
||||
* @param background Background color
|
||||
* @return Width of the string (out-of-display pixels also included)
|
||||
*/
|
||||
uint8_t ssd1306_draw_string(const ssd1306_t *dev, uint8_t *fb, const font_info_t *fnt, uint8_t x, uint8_t y, char *str, ssd1306_color_t foreground, ssd1306_color_t background);
|
||||
uint8_t ssd1306_draw_string(const ssd1306_t *dev, uint8_t *fb, const font_info_t *font, uint8_t x, uint8_t y, char *str, ssd1306_color_t foreground, ssd1306_color_t background);
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue