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Python3 conversion. #2

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75 changes: 38 additions & 37 deletions Create_Intensity_Lookup.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
# coding=utf-8
"""
//////////////////////////////////////////////////////////////////////////////////
// OpenNX4 - Open source firmware for Barco NX4 tiles
Expand All @@ -8,51 +9,51 @@
// You may not use this code or a derived work for commercial purposes unless you have a commercial license, contact drtune@gmail.com
//////////////////////////////////////////////////////////////////////////////////
"""
from __future__ import division, print_function
from NX4CommsHeaderReader import NX4

# output Xilinx ISE "COE" file (coeffs) to be includes in the ram 8b->12b pixel lookup
with open("ipcore_dir/Intensity_Lookup.coe", "w") as fout:

#output Xilinx ISE "COE" file (coeffs) to be includes in the ram 8b->12b pixel lookup
fout=open("ipcore_dir/Intensity_Lookup.coe","wt")
# http://jared.geek.nz/2013/feb/linear-led-pwm

#http://jared.geek.nz/2013/feb/linear-led-pwm
bits = NX4.INTERNAL_PIXEL_WIDTH_BITS

bits=NX4.INTERNAL_PIXEL_WIDTH_BITS
res = """
;GENERATED BY CREATE_INTENSITY_LOOKUP.PY DO NOT EDIT
; Generated for a 256x{:d} dual port BRAM
memory_initialization_radix=16;
memory_initialization_vector=
""".format(bits)

res="""
;GENERATED BY CREATE_INTENSITY_LOOKUP.PY DO NOT EDIT
; Generated for a 256x%d dual port BRAM
memory_initialization_radix=16;
memory_initialization_vector=
""" % bits
fullScale = 1 << bits

fullScale=1<<bits

def cie1931(L):
L = L*100.0
if L <= 8:
return (L/902.3)
else:
return ((L+16.0)/116.0)**3
def cie1931(L):
L = L * 100.0
if L <= 8:
return L / 902.3
else:
return ((L + 16.0) / 116.0) ** 3


if True:
out=[]
if True:
out = []

for n in range(256):
#adjust for eye response
if False:
gamma=pow(fullScale-1,(n/256.0))
gamma=int(gamma*fullScale)>>bits
else:
gamma = round(cie1931(float(n)/255)*(fullScale-1))

if n==0:
gamma=0
out.append( gamma )
res+=(",".join([ "%03x" % n for n in out]))

res+=";\n"

print >>fout,res
print res
fout.close()
for n in range(256):
# adjust for eye response
if False:
gamma = pow(fullScale - 1, (n / 256.0))
gamma = int(gamma * fullScale) >> bits
else:
gamma = round(cie1931(float(n) / 255) * (fullScale - 1))

if n == 0:
gamma = 0
out.append(gamma)
res += (",".join(["{:03x}".format(n) for n in out]))

res += ";\n"

print(res, file=fout)
print(res)
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