Apply first pass package wide code formatting.
[OpenColorIO-Configs.git] / aces_1.0.0 / python / aces_ocio / createARRIColorSpaces.py
index 0c15318..3f5591c 100644 (file)
@@ -11,7 +11,12 @@ from aces_ocio.util import ColorSpace, mat44FromMat33
 #
 # LogC to ACES
 #
-def createLogC(gamut, transferFunction, exposureIndex, name, lutDir, lutResolution1d):
+def createLogC(gamut,
+               transferFunction,
+               exposureIndex,
+               name,
+               lutDir,
+               lutResolution1d):
     name = "%s (EI%s) - %s" % (transferFunction, exposureIndex, gamut)
     if transferFunction == "":
         name = "Linear - %s" % gamut
@@ -22,7 +27,7 @@ def createLogC(gamut, transferFunction, exposureIndex, name, lutDir, lutResoluti
     cs.description = name
     cs.equalityGroup = ''
     cs.family = 'ARRI'
-    cs.isData=False
+    cs.isData = False
 
     # Globals
     IDT_maker_version = "0.08"
@@ -33,10 +38,11 @@ def createLogC(gamut, transferFunction, exposureIndex, name, lutDir, lutResoluti
     encodingGain = 0.256598
     encodingOffset = 0.391007
 
-    def gainForEI(EI) :
-        return (math.log(EI/nominalEI)/math.log(2) * (0.89 - 1) / 3 + 1) * encodingGain
+    def gainForEI(EI):
+        return (math.log(EI / nominalEI) / math.log(2) * (
+            0.89 - 1) / 3 + 1) * encodingGain
 
-    def LogCInverseParametersForEI(EI) :
+    def LogCInverseParametersForEI(EI):
         cut = 1.0 / 9.0
         slope = 1.0 / (cut * math.log(10))
         offset = math.log10(cut) - slope * cut
@@ -45,7 +51,7 @@ def createLogC(gamut, transferFunction, exposureIndex, name, lutDir, lutResoluti
         # The higher the EI, the lower the gamma
         encGain = gainForEI(EI)
         encOffset = encodingOffset
-        for i in range(0,3) :
+        for i in range(0, 3):
             nz = ((95.0 / 1023.0 - encOffset) / encGain - offset) / slope
             encOffset = encodingOffset - math.log10(1 + nz) * encGain
         # Calculate some intermediate values
@@ -60,23 +66,24 @@ def createLogC(gamut, transferFunction, exposureIndex, name, lutDir, lutResoluti
         a = a * s
         f = f + e * t
         e = e * s
-        return { 'a' : a,
-                 'b' : b,
-                 'cut' : (cut - b) / a,
-                 'c' : encGain,
-                 'd' : encOffset,
-                 'e' : e,
-                 'f' : f }
+        return {'a': a,
+                'b': b,
+                'cut': (cut - b) / a,
+                'c': encGain,
+                'd': encOffset,
+                'e': e,
+                'f': f}
 
     def logCtoLinear(codeValue, exposureIndex):
         p = LogCInverseParametersForEI(exposureIndex)
         breakpoint = p['e'] * p['cut'] + p['f']
         if (codeValue > breakpoint):
-            linear = (pow(10,(codeValue/1023.0 - p['d']) / p['c']) - p['b']) / p['a']
+            linear = ((pow(10, (codeValue / 1023.0 - p['d']) / p['c']) -
+                       p['b']) / p['a'])
         else:
-            linear = (codeValue/1023.0 - p['f']) / p['e']
+            linear = (codeValue / 1023.0 - p['f']) / p['e']
 
-        #print( codeValue, linear )
+        # print(codeValue, linear)
         return linear
 
 
@@ -85,56 +92,69 @@ def createLogC(gamut, transferFunction, exposureIndex, name, lutDir, lutResoluti
     if transferFunction == "V3 LogC":
         data = array.array('f', "\0" * lutResolution1d * 4)
         for c in range(lutResolution1d):
-            data[c] = logCtoLinear(1023.0*c/(lutResolution1d-1), int(exposureIndex))
+            data[c] = logCtoLinear(1023.0 * c / (lutResolution1d - 1),
+                                   int(exposureIndex))
 
-        lut = "%s_to_linear.spi1d" % ("%s_%s" % (transferFunction, exposureIndex))
+        lut = "%s_to_linear.spi1d" % (
+            "%s_%s" % (transferFunction, exposureIndex))
 
         # Remove spaces and parentheses
         lut = lut.replace(' ', '_').replace(')', '_').replace('(', '_')
 
-        genlut.writeSPI1D(lutDir + "/" + lut, 0.0, 1.0, data, lutResolution1d, 1)
-
-        #print( "Writing %s" % lut)
-        cs.toReferenceTransforms.append( {
-            'type':'lutFile', 
-            'path':lut, 
-            'interpolation':'linear', 
-            'direction':'forward'
-        } )
+        genlut.writeSPI1D(lutDir + "/" + lut,
+                          0.0,
+                          1.0,
+                          data,
+                          lutResolution1d,
+                          1)
+
+        # print("Writing %s" % lut)
+        cs.toReferenceTransforms.append({
+            'type': 'lutFile',
+            'path': lut,
+            'interpolation': 'linear',
+            'direction': 'forward'
+        })
 
     if gamut == 'Wide Gamut':
-        cs.toReferenceTransforms.append( {
-            'type':'matrix',
-            'matrix':mat44FromMat33([0.680206, 0.236137, 0.083658, 
-                        0.085415, 1.017471, -0.102886, 
-                        0.002057, -0.062563, 1.060506]),
-            'direction':'forward'
+        cs.toReferenceTransforms.append({
+            'type': 'matrix',
+            'matrix': mat44FromMat33([0.680206, 0.236137, 0.083658,
+                                      0.085415, 1.017471, -0.102886,
+                                      0.002057, -0.062563, 1.060506]),
+            'direction': 'forward'
         })
 
     cs.fromReferenceTransforms = []
     return cs
 
+
 def createColorSpaces(lutDir, lutResolution1d):
     colorspaces = []
 
     transferFunction = "V3 LogC"
     gamut = "Wide Gamut"
-    #EIs = [160.0, 200.0, 250.0, 320.0, 400.0, 500.0, 640.0, 800.0, 1000.0, 1280.0, 1600.0, 2000.0, 2560.0, 3200.0]
-    EIs = [160, 200, 250, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 2560, 3200]
+    # EIs = [160.0, 200.0, 250.0, 320.0, 400.0, 500.0, 640.0, 800.0,
+    # 1000.0, 1280.0, 1600.0, 2000.0, 2560.0, 3200.0]
+    EIs = [160, 200, 250, 320, 400, 500, 640, 800,
+           1000, 1280, 1600, 2000, 2560, 3200]
     defaultEI = 800
 
     # Full conversion
     for EI in EIs:
-        LogCEIfull = createLogC(gamut, transferFunction, EI, "LogC", lutDir, lutResolution1d)
+        LogCEIfull = createLogC(
+            gamut, transferFunction, EI, "LogC", lutDir, lutResolution1d)
         colorspaces.append(LogCEIfull)
 
     # Linearization only
     for EI in [800]:
-        LogCEIlinearization = createLogC("", transferFunction, EI, "LogC", lutDir, lutResolution1d)
+        LogCEIlinearization = createLogC(
+            "", transferFunction, EI, "LogC", lutDir, lutResolution1d)
         colorspaces.append(LogCEIlinearization)
 
     # Primaries
-    LogCEIprimaries = createLogC(gamut, "", defaultEI, "LogC", lutDir, lutResolution1d)
+    LogCEIprimaries = createLogC(
+        gamut, "", defaultEI, "LogC", lutDir, lutResolution1d)
     colorspaces.append(LogCEIprimaries)
 
     return colorspaces