diff options
Diffstat (limited to 'kernel/src/misc/graphics.c')
| -rw-r--r-- | kernel/src/misc/graphics.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/kernel/src/misc/graphics.c b/kernel/src/misc/graphics.c index 7c68b36..92fa9c5 100644 --- a/kernel/src/misc/graphics.c +++ b/kernel/src/misc/graphics.c @@ -18,6 +18,23 @@ void fb_draw_pixel(volatile fb_t fb, int32_t x, int32_t y, uint32_t col) fb_buff[fb_offset / 4] = col; } +void set_color(volatile fb_t* fb, uint32_t char_col, uint32_t bg_col) +{ + fb->char_col = char_col; + fb->bg_col = bg_col; +} + +void clear_screen(volatile fb_t fb) +{ + for (size_t i = 0; i < fb.height; i++) { + for (size_t j = 0; j < fb.width; j++) { + fb_draw_pixel(fb, (int32_t)i, (int32_t)j, BLACK); + } + } + fb.x = 0; + fb.y = 0; +} + /* https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm */ void fb_draw_line_low(volatile fb_t fb, int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint32_t col) @@ -82,7 +99,7 @@ void fb_draw_line(volatile fb_t fb, int32_t x0, int32_t y0, int32_t x1, int32_t } } -void fb_draw_character(volatile fb_t fb, char c, int32_t x, int32_t y, uint32_t char_col, uint32_t bg_col) +void fb_draw_character(volatile fb_t fb, char c, int32_t x, int32_t y) { if (c < 0) return; @@ -92,17 +109,10 @@ void fb_draw_character(volatile fb_t fb, char c, int32_t x, int32_t y, uint32_t for (int32_t j = 0 ; j < 8; j++) { if (font[offset + i] & (1 << (7 - j))) { - fb_draw_pixel(fb, x + j, y + i, char_col); + fb_draw_pixel(fb, x + j, y + i, fb.char_col); } else { - fb_draw_pixel(fb, x + j, y + i, bg_col); + fb_draw_pixel(fb, x + j, y + i, fb.bg_col); } } } } - -void fb_draw_string(volatile fb_t fb, const char* s, int32_t x, int32_t y, uint32_t char_col, uint32_t bg_col) -{ - for (size_t i = 0; i < strlen(s); i++) { - fb_draw_character(fb, s[i], (x + (int32_t)i * 8), y, char_col, bg_col); - } -} |