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Fast LUT computation improved.

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antirez
2024-03-15 19:10:11 +01:00
parent 34c4969169
commit 01b762907e
1 changed files with 12 additions and 11 deletions
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uc8151.py
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@@ -423,25 +423,26 @@ class UC8151:
# so the VCOM pattern is always 0.
row = 0
# Step 0: reverse pixel color compared to the target color for
# a given period.
self.set_lut_row(VCOM,row,pat=0,dur=[period,0,0,0],rep=1)
self.set_lut_row(BW,row,pat=0x40,dur=[period,0,0,0],rep=1)
self.set_lut_row(WB,row,pat=0x80,dur=[period,0,0,0],rep=1)
row += 1
if self.no_flickering == False:
if self.speed < 4:
# Step 0: reverse pixel color compared to the target color for
# a given period.
self.set_lut_row(VCOM,row,pat=0,dur=[period,0,0,0],rep=1)
self.set_lut_row(BW,row,pat=0x40,dur=[period,0,0,0],rep=1)
self.set_lut_row(WB,row,pat=0x80,dur=[period,0,0,0],rep=1)
row += 1
if self.no_flickering == False or self.speed >= 4:
# Step 1: reverse pixel color for half period, back to the color
# the pixel should have. Repeat two times. This step is skipped
# if anti flickering is no.
self.set_lut_row(VCOM,row,pat=0,dur=[hperiod,hperiod,0,0],rep=2)
self.set_lut_row(BW,row,pat=0x60,dur=[hperiod,hperiod,0,0],rep=2)
self.set_lut_row(WB,row,pat=0x60,dur=[hperiod,hperiod,0,0],rep=2)
rep = 1 if self.speed >= 4 else 2
self.set_lut_row(VCOM,row,pat=0,dur=[hperiod,hperiod,0,0],rep=rep)
self.set_lut_row(BW,row,pat=0x60,dur=[hperiod,hperiod,0,0],rep=rep)
self.set_lut_row(WB,row,pat=0x60,dur=[hperiod,hperiod,0,0],rep=rep)
row += 1
# Step 2: Finally set the target color for a full period.
# Note that we want to repeat this cycle twice if we are going
# fast or we skipped the ping-pong step.
rep = 2 if self.speed > 3 or self.no_flickering else 1
if self.speed >= 5: rep = 3
self.set_lut_row(VCOM,row,pat=0,dur=[period,0,0,0],rep=rep)
self.set_lut_row(BW,row,pat=0x80,dur=[period,0,0,0],rep=rep)
self.set_lut_row(WB,row,pat=0x40,dur=[period,0,0,0],rep=rep)