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Disable matrix refresh during update using image() (Fixes #78) #86

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Merged
merged 2 commits into from
Mar 10, 2021
Merged

Disable matrix refresh during update using image() (Fixes #78) #86

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3b47577
Disable display refresh during update in Matrix8x8
SAK917 Feb 11, 2021
6fe3692
Disable refresh during update in Matrix8x8x2
SAK917 Feb 11, 2021
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6 changes: 6 additions & 0 deletions adafruit_ht16k33/matrix.py
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Original file line number Diff line number Diff line change
Expand Up @@ -124,10 +124,13 @@ def image(self, img):
)
# Grab all the pixels from the image, faster than getpixel.
pixels = img.convert("1").load()
auto_write = self.auto_write
self._auto_write = False
# Iterate through the pixels
for x in range(self.columns): # yes this double loop is slow,
for y in range(self.rows): # but these displays are small!
self.pixel(x, y, pixels[(x, y)])
self._auto_write = auto_write
if self._auto_write:
self.show()

Expand Down Expand Up @@ -214,6 +217,8 @@ def image(self, img):
)
# Grab all the pixels from the image, faster than getpixel.
pixels = img.convert("RGB").load()
auto_write = self.auto_write
self._auto_write = False
# Iterate through the pixels
for x in range(self.columns): # yes this double loop is slow,
for y in range(self.rows): # but these displays are small!
Expand All @@ -226,5 +231,6 @@ def image(self, img):
else:
# Unknown color, default to LED off.
self.pixel(x, y, self.LED_OFF)
self._auto_write = auto_write
if self._auto_write:
self.show()