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Merge pull request #18 from IhorNehrutsa/master 

st7789/st7789_4bit.py little speedup, split=5
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Peter Hinch 2021-05-13 14:20:01 +01:00 zatwierdzone przez GitHub
rodzic b49a07fa42 b306d38e1d
commit 4ef0e20da2
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ID klucza GPG: 4AEE18F83AFDEB23
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drivers/st7789/st7789_4bit.py
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@ -45,7 +45,7 @@ def _lcopy(dest:ptr16, source:ptr8, lut:ptr16, length:int):
class ST7789(framebuf.FrameBuffer): class ST7789(framebuf.FrameBuffer):
lut = bytearray(32) lut = bytearray(0xFF for _ in range(32)) # set all colors to BLACK
# Convert r, g, b in range 0-255 to a 16 bit colour value rgb565. # Convert r, g, b in range 0-255 to a 16 bit colour value rgb565.
# LS byte goes into LUT offset 0, MS byte into offset 1 # LS byte goes into LUT offset 0, MS byte into offset 1
@ -191,12 +191,13 @@ class ST7789(framebuf.FrameBuffer):
#@micropython.native # Made virtually no difference to timing. #@micropython.native # Made virtually no difference to timing.
def show(self): # Blocks for 83ms @60MHz SPI def show(self): # Blocks for 83ms @60MHz SPI
# Blocks for 60ms @30MHz SPI on TTGO ESP32 # Blocks for 60ms @30MHz SPI on TTGO in PORTRAIT mode
# Blocks for 46ms @30MHz SPI on TTGO in LANDSCAPE mode
#ts = ticks_us() #ts = ticks_us()
clut = ST7789.lut clut = ST7789.lut
wd = -(-self.width // 2) # Ceiling division for odd number widths wd = -(-self.width // 2) # Ceiling division for odd number widths
end = self.height * wd end = self.height * wd
lb = self._linebuf lb = memoryview(self._linebuf)
buf = self._mvb buf = self._mvb
if self._spi_init: # A callback was passed if self._spi_init: # A callback was passed
self._spi_init(self._spi) # Bus may be shared self._spi_init(self._spi) # Bus may be shared
@ -211,14 +212,14 @@ class ST7789(framebuf.FrameBuffer):
#print(ticks_diff(ticks_us(), ts)) #print(ticks_diff(ticks_us(), ts))
# Asynchronous refresh with support for reducing blocking time. # Asynchronous refresh with support for reducing blocking time.
async def do_refresh(self, split=4): async def do_refresh(self, split=5):
async with self._lock: async with self._lock:
lines, mod = divmod(self.height, split) # Lines per segment lines, mod = divmod(self.height, split) # Lines per segment
if mod: if mod:
raise ValueError('Invalid do_refresh arg.') raise ValueError('Invalid do_refresh arg.')
clut = ST7789.lut clut = ST7789.lut
wd = -(-self.width // 2) wd = -(-self.width // 2)
lb = self._linebuf lb = memoryview(self._linebuf)
buf = self._mvb buf = self._mvb
line = 0 line = 0
for n in range(split): for n in range(split):