diff options
Diffstat (limited to 'wasp/draw565.py')
| -rw-r--r-- | wasp/draw565.py | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/wasp/draw565.py b/wasp/draw565.py index a94b812..e1beb51 100644 --- a/wasp/draw565.py +++ b/wasp/draw565.py @@ -29,6 +29,16 @@ def _bitblit(bitbuf, pixels, bgfg: int, count: int): bitselect = 0x80 pxp += 1 +@micropython.viper +def _fill(mv, color: int, count: int, offset: int): + p = ptr8(mv) + colorhi = color >> 8 + colorlo = color & 0xff + + for x in range(count): + p[2*(x+offset) ] = colorhi + p[2*(x+offset) + 1] = colorlo + def _bounding_box(s, font): w = 0 for ch in s: @@ -66,6 +76,44 @@ class Draw565(object): self.set_color(0xffff) self.set_font(fonts.sans24) + def fill(self, bg=None, x=0, y=0, w=None, h=None): + """Draw a solid color rectangle. + + If no arguments a provided the whole display will be filled with + the background color. + """ + if bg is None: + bg = self._bgfg >> 16 + self._display.fill(bg, x, y, w, h) + + @micropython.native + def rleblit(self, image, pos=(0, 0), fg=0xffff, bg=0): + """Decode and draw a 1-bit RLE image.""" + display = self._display + (sx, sy, rle) = image + + display.set_window(pos[0], pos[1], sx, sy) + + buf = memoryview(display.linebuffer)[0:2*sx] + bp = 0 + color = bg + + for rl in rle: + while rl: + count = min(sx - bp, rl) + _fill(buf, color, count, bp) + bp += count + rl -= count + + if bp >= sx: + display.write_data(buf) + bp = 0 + + if color == bg: + color = fg + else: + color = bg + def set_color(self, color, bg=0): """Set the foreground (color) and background (bg) color. |