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Host: Made rendering pipeline a bit more flexible

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jaseg 2016-01-02 00:48:14 +01:00
parent 330e1eb20e
commit fefb33736a
8 changed files with 123 additions and 94 deletions
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38
host/matelight.py
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@ -3,28 +3,36 @@ from itertools import product
from ctypes import c_size_t, c_uint8, c_void_p, c_float, CDLL, Structure, POINTER
import numpy as np
import time
import atexit
from config import *
import config
ml = CDLL('./libml.so')
ml.matelight_open.restype = c_void_p
if ml.matelight_usb_init():
raise OSError('Cannot initialize USB library')
matelights = ml.matelight_open()
if matelights is None:
raise ImportError('Cannot open any Mate Light devices')
dbuf = np.zeros(DISPLAY_WIDTH*DISPLAY_HEIGHT*4, dtype=np.uint8)
def sendframe(framedata):
""" Send a frame to the display
atexit.register(ml.matelight_usb_destroy)
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
channel is ignored.
"""
# just use the first Mate Light available
rgba = len(framedata) == DISPLAY_WIDTH*DISPLAY_HEIGHT*4
global dbuf
np.copyto(dbuf[:640*(3+rgba)], np.frombuffer(framedata, dtype=np.uint8))
ml.matelight_send_frame(matelights, dbuf.ctypes.data_as(POINTER(c_uint8)), c_size_t(CRATES_X), c_size_t(CRATES_Y), c_float(BRIGHTNESS), rgba)
class Matelight:
def __init__(self, match_serial=None):
""" Open the matelight matching the USB serial number given as a bytes object. If match_serial is None, open the
first matelight """
self.handle = ml.matelight_open(match_serial)
self.dbuf = np.zeros(config.frame_size*4, dtype=np.uint8)
if self.handle is None:
raise ValueError('Cannot find requested matelight.')
def sendframe(self, framedata):
""" Send a frame to the display
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
channel is ignored.
"""
# just use the first Mate Light available
rgba = len(framedata) == config.frame_size*4
np.copyto(self.dbuf[:640*(3+rgba)], np.frombuffer(framedata, dtype=np.uint8))
ml.matelight_send_frame(self.handle, self.dbuf.ctypes.data_as(POINTER(c_uint8)), c_size_t(config.crates_x),
c_size_t(config.crates_y), c_float(config.brightness), rgba)