text: # SPDX-License-Identifier: BSD-3-Clause
  # Copyright Contributors to the OpenColorIO Project.
  
  import unittest, os, sys
  import PyOpenColorIO as OCIO
  
  class TransformsTest(unittest.TestCase):
  
      def test_interface(self):
  
          ### AllocationTransform ###
          at = OCIO.AllocationTransform()
          self.assertEqual(OCIO.Constants.ALLOCATION_UNIFORM, at.getAllocation())
          at.setAllocation(OCIO.Constants.ALLOCATION_LG2)
          self.assertEqual(OCIO.Constants.ALLOCATION_LG2, at.getAllocation())
          self.assertEqual(0, at.getNumVars())
          at.setVars([0.1, 0.2, 0.3])
          self.assertEqual(3, at.getNumVars())
          newvars = at.getVars()
          self.assertAlmostEqual(0.2, newvars[1], delta=1e-8)
  
          at2 = OCIO.AllocationTransform(OCIO.Constants.ALLOCATION_LG2,
                                         [0.1, 0.2, 0.3],
                                         OCIO.Constants.TRANSFORM_DIR_INVERSE)
          self.assertEqual(OCIO.Constants.ALLOCATION_LG2, at2.getAllocation())
          self.assertEqual(3, at2.getNumVars())
          newvars2 = at2.getVars()
          for i in range(0, 3):
              self.assertAlmostEqual(float(i+1)/10.0, newvars2[i], delta=1e-7)
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE, at2.getDirection())
  
          at3 = OCIO.AllocationTransform(allocation=OCIO.Constants.ALLOCATION_LG2,
                                         vars=[0.1, 0.2, 0.3],
                                         direction=OCIO.Constants.TRANSFORM_DIR_INVERSE)
          self.assertEqual(OCIO.Constants.ALLOCATION_LG2, at3.getAllocation())
          self.assertEqual(3, at3.getNumVars())
          newvars3 = at3.getVars()
          for i in range(0, 3):
              self.assertAlmostEqual(float(i+1)/10.0, newvars3[i], delta=1e-7)
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE, at3.getDirection())
  
          ### Base Transform method tests ###
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_FORWARD, at.getDirection())
          at.setDirection(OCIO.Constants.TRANSFORM_DIR_UNKNOWN)
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_UNKNOWN, at.getDirection())
  
          ### CDLTransform ###
          cdl = OCIO.CDLTransform()
          CC = "<ColorCorrection id=\"foo\">\n"
          CC += "    <SOPNode>\n"
          CC += "        <Description>this is a description</Description>\n"
          CC += "        <Slope>1.1 1.2 1.3</Slope>\n"
          CC += "        <Offset>2.1 2.2 2.3</Offset>\n"
          CC += "        <Power>3.1 3.2 3.3</Power>\n"
          CC += "    </SOPNode>\n"
          CC += "    <SatNode>\n"
          CC += "        <Saturation>0.7</Saturation>\n"
          CC += "    </SatNode>\n"
          CC += "</ColorCorrection>"
          # Don't want to deal with getting the correct path so this runs
          #cdlfile = OCIO.CDLTransform().CreateFromFile("../OpenColorIO/src/jniglue/tests/org/OpenColorIO/test.cc", "foo")
          #self.assertEqual(CC, cdlfile.getXML())
          cdl.setXML(CC)
          self.assertEqual(CC, cdl.getXML())
          match = cdl.createEditableCopy()
          match.setOffset([1.0, 1.0, 1.0])
          self.assertEqual(False, cdl.equals(match))
          cdl.setSlope([0.1, 0.2, 0.3])
          cdl.setOffset([1.1, 1.2, 1.3])
          cdl.setPower([2.1, 2.2, 2.3])
          cdl.setSat(0.5)
          CC2 = "<ColorCorrection id=\"foo\">\n"
          CC2 += "    <SOPNode>\n"
          CC2 += "        <Description>this is a description</Description>\n"
          CC2 += "        <Slope>0.1 0.2 0.3</Slope>\n"
          CC2 += "        <Offset>1.1 1.2 1.3</Offset>\n"
          CC2 += "        <Power>2.1 2.2 2.3</Power>\n"
          CC2 += "    </SOPNode>\n"
          CC2 += "    <SatNode>\n"
          CC2 += "        <Saturation>0.5</Saturation>\n"
          CC2 += "    </SatNode>\n"
          CC2 += "</ColorCorrection>"
          self.assertEqual(CC2, cdl.getXML())
          cdl.setSOP([1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9])
          newsop = cdl.getSOP()
          self.assertAlmostEqual(1.5, newsop[4], delta=1e-8)
          slope = cdl.getSlope()
          self.assertAlmostEqual(1.2, slope[1], delta=1e-7)
          offset = cdl.getOffset()
          self.assertAlmostEqual(1.6, offset[2], delta=1e-7)
          power = cdl.getPower()
          self.assertAlmostEqual(1.7, power[0], delta=1e-7)
          self.assertAlmostEqual(0.5, cdl.getSat(), delta=1e-8)
          luma = cdl.getSatLumaCoefs()
          self.assertAlmostEqual(0.2126, luma[0], delta=1e-8)
          self.assertAlmostEqual(0.7152, luma[1], delta=1e-8)
          self.assertAlmostEqual(0.0722, luma[2], delta=1e-8)
          cdl.setID("foobar123")
          self.assertEqual("foobar123", cdl.getID())
          cdl.setDescription("bar")
          self.assertEqual("bar", cdl.getDescription())
  
          cdl2 = OCIO.CDLTransform([0.1, 0.2, 0.3],
                                   [1.1, 1.2, 1.3],
                                   [2.1, 2.2, 2.3],
                                   0.5,
                                   OCIO.Constants.TRANSFORM_DIR_INVERSE,
                                   'foobar123', 'bar')
          slope2 = cdl2.getSlope()
          offset2 = cdl2.getOffset()
          power2 = cdl2.getPower()
          luma2 = cdl2.getSatLumaCoefs()
          for i in range(0, 3):
              self.assertAlmostEqual(float(i+1)/10.0, slope2[i], delta=1e-7)
              self.assertAlmostEqual(float(i+1)/10.0+1, offset2[i], delta=1e-7)
              self.assertAlmostEqual(float(i+1)/10.0+2, power2[i], delta=1e-7)
          self.assertAlmostEqual(0.5, cdl2.getSat(), delta=1e-8)
          self.assertAlmostEqual(0.2126, luma2[0], delta=1e-8)
          self.assertAlmostEqual(0.7152, luma2[1], delta=1e-8)
          self.assertAlmostEqual(0.0722, luma2[2], delta=1e-8)
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE, cdl2.getDirection())
          self.assertEqual('foobar123', cdl2.getID())
          self.assertEqual('bar', cdl2.getDescription())
  
          cdl3 = OCIO.CDLTransform(slope=[0.1, 0.2, 0.3],
                                   offset=[1.1, 1.2, 1.3],
                                   power=[2.1, 2.2, 2.3],
                                   sat=0.5,
                                   direction=OCIO.Constants.TRANSFORM_DIR_INVERSE,
                                   id='foobar123', description='bar')
          slope3 = cdl2.getSlope()
          offset3 = cdl2.getOffset()
          power3 = cdl2.getPower()
          luma3 = cdl2.getSatLumaCoefs()
          for i in range(0, 3):
              self.assertAlmostEqual(float(i+1)/10.0, slope3[i], delta=1e-7)
              self.assertAlmostEqual(float(i+1)/10.0+1, offset3[i], delta=1e-7)
              self.assertAlmostEqual(float(i+1)/10.0+2, power3[i], delta=1e-7)
          self.assertAlmostEqual(0.5, cdl3.getSat(), delta=1e-8)
          self.assertAlmostEqual(0.2126, luma3[0], delta=1e-8)
          self.assertAlmostEqual(0.7152, luma3[1], delta=1e-8)
          self.assertAlmostEqual(0.0722, luma3[2], delta=1e-8)
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE, cdl3.getDirection())
          self.assertEqual('foobar123', cdl3.getID())
          self.assertEqual('bar', cdl3.getDescription())
  
          ### ColorSpaceTransform ###
          ct = OCIO.ColorSpaceTransform()
          ct.setSrc("foo")
          self.assertEqual("foo", ct.getSrc())
          ct.setDst("bar")
          self.assertEqual("bar", ct.getDst())
  
          ### DisplayTransform ###
          dt = OCIO.DisplayTransform()
          dt.setInputColorSpaceName("lin18")
          self.assertEqual("lin18", dt.getInputColorSpaceName())
          dt.setLinearCC(ct)
          foo = dt.getLinearCC()
          dt.setColorTimingCC(cdl)
          blah = dt.getColorTimingCC()
          dt.setChannelView(at)
          wee = dt.getChannelView()
          dt.setDisplay("sRGB")
          self.assertEqual("sRGB", dt.getDisplay())
          dt.setView("foobar")
          self.assertEqual("foobar", dt.getView())
          cdl.setXML(CC)
          dt.setDisplayCC(cdl)
          cdldt = dt.getDisplayCC()
          self.assertEqual(CC, cdldt.getXML())
          dt.setLooksOverride("darkgrade")
          self.assertEqual("darkgrade", dt.getLooksOverride())
          dt.setLooksOverrideEnabled(True)
          self.assertEqual(True, dt.getLooksOverrideEnabled())
  
          dt2 = OCIO.DisplayTransform("lin18", "sRGB", "foobar",
                                      OCIO.Constants.TRANSFORM_DIR_INVERSE)
          self.assertEqual("lin18", dt2.getInputColorSpaceName())
          self.assertEqual("sRGB", dt2.getDisplay())
          self.assertEqual("foobar", dt2.getView())
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE, dt2.getDirection())
  
          dt3 = OCIO.DisplayTransform(inputColorSpaceName="lin18",
                                      display="sRGB", view="foobar",
                                      direction=OCIO.Constants.TRANSFORM_DIR_INVERSE)
          self.assertEqual("lin18", dt3.getInputColorSpaceName())
          self.assertEqual("sRGB", dt3.getDisplay())
          self.assertEqual("foobar", dt3.getView())
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_INVERSE, dt3.getDirection())
  
          ### ExponentTransform ###
          et = OCIO.ExponentTransform()
          et.setValue([0.1, 0.2, 0.3, 0.4])
          evals = et.getValue()
          self.assertAlmostEqual(0.3, evals[2], delta=1e-7)
  
          ### FileTransform ###
          ft = OCIO.FileTransform()
          ft.setSrc("foo")
          self.assertEqual("foo", ft.getSrc())
          ft.setCCCId("foobar")
          self.assertEqual("foobar", ft.getCCCId())
          ft.setInterpolation(OCIO.Constants.INTERP_NEAREST)
          self.assertEqual(OCIO.Constants.INTERP_NEAREST, ft.getInterpolation())
          self.assertEqual(24, ft.getNumFormats())
          self.assertEqual("flame", ft.getFormatNameByIndex(0))
          self.assertEqual("3dl", ft.getFormatExtensionByIndex(0))
  
          ### GroupTransform ###
          gt = OCIO.GroupTransform()
          gt.appendTransform(et)
          gt.appendTransform(ft)
          self.assertEqual(2, gt.getNumTransforms())
          foo = gt.getTransform(0)
          self.assertEqual(OCIO.Constants.TRANSFORM_DIR_FORWARD, foo.getDirection())
  
          ### LogTransform ###
          lt = OCIO.LogTransform()
          lt.setBase(10.0)
          self.assertEqual(10.0, lt.getBase())
  
          ### LookTransform ###
          lkt = OCIO.LookTransform()
          lkt.setSrc("foo")
          self.assertEqual("foo", lkt.getSrc())
          lkt.setDst("bar")
          self.assertEqual("bar", lkt.getDst())
          lkt.setLooks("bar;foo")
          self.assertEqual("bar;foo", lkt.getLooks())
  
          ### MatrixTransform ###
          mt = OCIO.MatrixTransform()
          mmt = mt.createEditableCopy()
          mt.setMatrix([0.1, 0.2, 0.3, 0.4,
                       0.5, 0.6, 0.7, 0.8,
                       0.9, 1.0, 1.1, 1.2,
                       1.3, 1.4, 1.5, 1.6])
          mt.setOffset([0.1, 0.2, 0.3, 0.4])
          self.assertEqual(False, mt.equals(mmt))
          m44_1 = mt.getMatrix()
          offset_1 = mt.getOffset()
          self.assertAlmostEqual(0.3, m44_1[2], delta=1e-7)
          self.assertAlmostEqual(0.2, offset_1[1], delta=1e-7)
          m44_2, offset_2 = mt.Fit([0.1, 0.1, 0.1, 0.1],
                                   [0.9, 0.9, 0.9, 0.9],
                                   [0.0, 0.0, 0.0, 0.0],
                                   [1.1, 1.1, 1.1, 1.1])
  
          self.assertAlmostEqual(1.375, m44_2[0], delta=1e-7)
          m44_3, offset_2 = mt.Identity()
          self.assertAlmostEqual(0.0, m44_3[1], delta=1e-7)
          m44_2, offset_2 = mt.Sat(0.5, [0.2126, 0.7152, 0.0722])
          self.assertAlmostEqual(0.3576, m44_2[1], delta=1e-7)
          m44_2, offset_2 = mt.Scale([0.9, 0.8, 0.7, 1.])
          self.assertAlmostEqual(0.9, m44_2[0], delta=1e-7)
          m44_2, offset_2 = mt.View([1, 1, 1, 0], [0.2126, 0.7152, 0.0722])
          self.assertAlmostEqual(0.0722, m44_2[2], delta=1e-7)
  
          mt4 = OCIO.MatrixTransform([0.1, 0.2, 0.3, 0.4,
                                      0.5, 0.6, 0.7, 0.8,
                                      0.9, 1.0, 1.1, 1.2,
                                      1.3, 1.4, 1.5, 1.6],
                                     [0.1, 0.2, 0.3, 0.4],
                                     OCIO.Constants.TRANSFORM_DIR_INVERSE)
          m44_4 = mt4.getMatrix()
          offset_4 = mt4.getOffset()
          for i in range(0, 16):
              self.assertAlmostEqual(float(i+1)/10.0, m44_4[i], delta=1e-7)
          for i in range(0, 4):
              self.assertAlmostEqual(float(i+1)/10.0, offset_4[i], delta=1e-7)
          self.assertEqual(mt4.getDirection(), OCIO.Constants.TRANSFORM_DIR_INVERSE)
  
          mt5 = OCIO.MatrixTransform(matrix=[0.1, 0.2, 0.3, 0.4,
                                             0.5, 0.6, 0.7, 0.8,
                                             0.9, 1.0, 1.1, 1.2,
                                             1.3, 1.4, 1.5, 1.6],
                                     offset=[0.1, 0.2, 0.3, 0.4],
                                     direction=OCIO.Constants.TRANSFORM_DIR_INVERSE)
          m44_5 = mt5.getMatrix()
          offset_5 = mt5.getOffset()
          for i in range(0, 16):
              self.assertAlmostEqual(float(i+1)/10.0, m44_5[i], delta=1e-7)
          for i in range(0, 4):
              self.assertAlmostEqual(float(i+1)/10.0, offset_5[i], delta=1e-7)
          self.assertEqual(mt5.getDirection(), OCIO.Constants.TRANSFORM_DIR_INVERSE)
  