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st7789/st7789_4bit.py little speedup, split=5

pull/18/head
Ihor Nehrutsa 2021-05-12 15:21:13 +03:00
rodzic 9085e95215
commit f36920fb36
1 zmienionych plików z 6 dodań i 4 usunięć
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drivers/st7789/st7789_4bit.py
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@ -79,6 +79,7 @@ class ST7789(framebuf.FrameBuffer):
super().__init__(buf, width, height, mode) super().__init__(buf, width, height, mode)
self._linebuf = bytearray(self.width * 2) # 16 bit color out self._linebuf = bytearray(self.width * 2) # 16 bit color out
self._init(disp_mode, orientation) self._init(disp_mode, orientation)
self.fill(0)
self.show() self.show()
# Hardware reset # Hardware reset
@ -191,12 +192,13 @@ 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 +213,14 @@ 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):