diff options
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/drivers/lcd.c | 12 | ||||
| -rw-r--r-- | firmware/drivers/lcd.h | 1 |
2 files changed, 11 insertions, 2 deletions
diff --git a/firmware/drivers/lcd.c b/firmware/drivers/lcd.c index 056aca0..d38b1da 100644 --- a/firmware/drivers/lcd.c +++ b/firmware/drivers/lcd.c @@ -910,9 +910,17 @@ void lcd_fillrect (int x, int y, int nx, int ny) /* Invert a rectangular area at (x, y), size (nx, ny) */ void lcd_invertrect (int x, int y, int nx, int ny) { - int i; + int i,j; + + if (x>LCD_WIDTH) return; + if (y>LCD_HEIGHT) return; + + if (x+nx>LCD_WIDTH) nx=LCD_WIDTH-x; + if (y+ny>LCD_HEIGHT) ny=LCD_HEIGHT-y; + for (i = 0; i < nx; i++) - lcd_bitmap (ones, x+i, y, 1, ny, false); + for (j = 0; j < ny; j++) + INVERT_PIXEL((x+i),(y+j)); } void lcd_drawline( int x1, int y1, int x2, int y2 ) diff --git a/firmware/drivers/lcd.h b/firmware/drivers/lcd.h index a2d392c..21e1275 100644 --- a/firmware/drivers/lcd.h +++ b/firmware/drivers/lcd.h @@ -79,6 +79,7 @@ extern void lcd_double_height (bool on); #define DRAW_PIXEL(x,y) lcd_framebuffer[x][y/8] |= (1<<(y&7)) #define CLEAR_PIXEL(x,y) lcd_framebuffer[x][y/8] &= ~(1<<(y&7)) +#define INVERT_PIXEL(x,y) lcd_framebuffer[x][y/8] ^= (1<<(y&7)) /* * Memory copy of display bitmap |