Rename arduino led driver to appease arduino IDE

[clinton/scratch.git] / arduino_rgb_led / static / git-logo.png

diff --git a/arduino-rgb-led/gamma.py b/arduino-rgb-led/gamma.py
deleted file mode 100644 (file)
index 405b8b4..0000000
--- a/arduino-rgb-led/gamma.py
+++ /dev/null
@@ -1,69 +0,0 @@
-# https://github.com/raplin/HexaWS2811/blob/master/gamma.py
-# Lookup table generator
-#
-# Really it's correcting for the eye's luminance response, it's not actually gamma correction (it's misnamed!)
-#
-# We're generating a set of 256-entry lookup tables which you use to (separately) convert the 8-bit R, G and B components of your color
-# into something you output, typically with an intelligent RGB LED such as a WS2812B; but a simple CPU-based PWM will give the same results (and benefit from this correction)
-# 
-# We generate several sets  (2,4,8...) of 256-entry tables so you can cycle through them, using a successive 8-bit lookup table each successive output frame.
-# This is 'temporal dithering', which aims to give you better color resolution at the dark end of the scale.
-# If you update at e.g. 100hz, try using two or three 'ditherBits' (i.e. 2^^2 or 2^^3=8 tables. The faster your update the more tables you can use
-# and you get better color resolution. More than 5 ditherbits is probably excessive, even 2 will help somewhat.
-#
-# If you get objectionable flickering when displaying low-intensity pixels, you should either update your leds faster or reduce ditherBits
-# 
-# 
-#
-fout=open("gamma.h","wt")
-
-#adjust me! Each extra bit doubles the table size 
-ditherBits=1
-
-ditherMSB=1<<(ditherBits-1)
-
-res="/* Dithered luminance correction table - autogenerated by gamma.py */\n#define DITHER_BITS %d\nconst prog_uchar PROGMEM gammaTable[]={" % ditherBits
-
-useRealLuminanceCalcuation=True # CIE 1931 formula
-
-finalAdjust=0  #set this to 1 if you want your values to start at one (1..255). This is a quirky request for FastLED users only
-
-for dither in range(1<<ditherBits):
-    out=[]
-
-    #reverse the low order bits so the dithering is less flickery
-    ditherValue=0
-    dread=1<<ditherBits
-    dout=1
-    for d in range(ditherBits):
-        dread>>=1
-        if dither & dread:
-            ditherValue|=dout
-        dout<<=1;
-    
-    ditherValue=(ditherValue<<(8-ditherBits))
-
-    for n in range(256):
-        if useRealLuminanceCalcuation:
-            # CIE 1931 
-            brightness=n/2.56
-            if brightness > 8:
-                pwmValue= pow( ((brightness + 16) / 116) , 3  )
-            else:
-                pwmValue = brightness / 903.3      
-            pwmValue*=256
-        else:
-            #use simple power 
-            pwmValue=pow(255,(n/256.0))-1
-        pwmValue=int(pwmValue*256)
-        pwmValue+=ditherValue
-        pwmValue=min(255, (pwmValue>>8)+finalAdjust)
-        out.append( pwmValue )
-    if dither:
-        res+=","
-    res+="\n\t"+(",".join([ "0x%x"%n for n in out]))  
-    
-res+="\n\t};\n"
-
-print >>fout,res
-fout.close()