adafruit-mirror/Adafruit_CircuitPython_EPD
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fix stride for rotation of odd-pixel-counts

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ladyada 2019-09-29 12:29:29 -04:00
parent 3f9bc2665a
commit 8022b3427e
2 changed files with 12 additions and 10 deletions
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11
adafruit_epd/ssd1675.py
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@ -68,10 +68,11 @@ class Adafruit_SSD1675(Adafruit_EPD):
def __init__(self, width, height, spi, *, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin):
super(Adafruit_SSD1675, self).__init__(width, height, spi, cs_pin, dc_pin,
sramcs_pin, rst_pin, busy_pin)
if width % 8 != 0:
width += (8 - width % 8)
stride = width
if stride % 8 != 0:
stride += (8 - stride % 8)
self._buffer1_size = int(width * height / 8)
self._buffer1_size = int(stride * height / 8)
self._buffer2_size = self._buffer1_size
if sramcs_pin:
@ -82,9 +83,9 @@ class Adafruit_SSD1675(Adafruit_EPD):
self._buffer2 = bytearray(self._buffer2_size)
# since we have *two* framebuffers - one for red and one for black
# we dont subclass but manage manually
self._framebuf1 = adafruit_framebuf.FrameBuffer(self._buffer1, width, height,
self._framebuf1 = adafruit_framebuf.FrameBuffer(self._buffer1, width, height, stride=stride,
buf_format=adafruit_framebuf.MHMSB)
self._framebuf2 = adafruit_framebuf.FrameBuffer(self._buffer2, width, height,
self._framebuf2 = adafruit_framebuf.FrameBuffer(self._buffer2, width, height, stride=stride,
buf_format=adafruit_framebuf.MHMSB)
self.set_black_buffer(0, True)
self.set_color_buffer(0, True)

11
adafruit_epd/ssd1675b.py
View file

@ -94,10 +94,11 @@ class Adafruit_SSD1675B(Adafruit_EPD):
def __init__(self, width, height, spi, *, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin):
super(Adafruit_SSD1675B, self).__init__(width, height, spi, cs_pin, dc_pin,
sramcs_pin, rst_pin, busy_pin)
if width % 8 != 0:
width += (8 - width % 8)
stride = width
if stride % 8 != 0:
stride += (8 - stride % 8)
self._buffer1_size = int(width * height / 8)
self._buffer1_size = int(stride * height / 8)
self._buffer2_size = self._buffer1_size
if sramcs_pin:
@ -108,9 +109,9 @@ class Adafruit_SSD1675B(Adafruit_EPD):
self._buffer2 = bytearray(self._buffer2_size)
# since we have *two* framebuffers - one for red and one for black
# we dont subclass but manage manually
self._framebuf1 = adafruit_framebuf.FrameBuffer(self._buffer1, width, height,
self._framebuf1 = adafruit_framebuf.FrameBuffer(self._buffer1, width, height, stride=stride,
buf_format=adafruit_framebuf.MHMSB)
self._framebuf2 = adafruit_framebuf.FrameBuffer(self._buffer2, width, height,
self._framebuf2 = adafruit_framebuf.FrameBuffer(self._buffer2, width, height, stride=stride,
buf_format=adafruit_framebuf.MHMSB)
self.set_black_buffer(0, True)
self.set_color_buffer(0, True)