42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
import colorsys
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import numpy as np
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from itertools import product
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from ctypes import c_size_t, c_uint8, c_void_p, c_float, CDLL, Structure, POINTER
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import time
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CRATE_WIDTH = 5
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CRATE_HEIGHT = 4
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CRATES_X = 8
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CRATES_Y = 4
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DISPLAY_WIDTH = CRATES_X*CRATE_WIDTH
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DISPLAY_HEIGHT = CRATES_Y*CRATE_HEIGHT
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CRATE_SIZE = CRATE_WIDTH*CRATE_HEIGHT*3
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FRAME_SIZE = DISPLAY_WIDTH*DISPLAY_HEIGHT
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# Gamma factor
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GAMMA = 2.5
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# Brightness of the LEDs in percent. 1.0 means 100%.
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BRIGHTNESS = 1.0
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ml = CDLL('./libml.so')
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ml.matelight_open.restype = c_void_p
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if ml.matelight_usb_init():
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raise OSError('Cannot initialize USB library')
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matelights = ml.matelight_open()
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if matelights is None:
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raise ImportError('Cannot open any Mate Light devices')
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def sendframe(framedata):
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""" Send a frame to the display
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The argument contains a h * w array of 3-tuples of (r, g, b)-data or 4-tuples of (r, g, b, a)-data where the a
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channel is ignored.
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"""
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# just use the first Mate Light available
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w,h,c = framedata.shape
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buf = framedata.ctypes.data_as(POINTER(c_uint8))
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ml.matelight_send_frame(matelights, buf, c_size_t(CRATES_X), c_size_t(CRATES_Y), c_float(BRIGHTNESS), c == 4)
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