Added GoPro Protune support

Added RED REDcolor gamut support

diff --git a/aces_1.0.0/python/aces_ocio/create_aces_config.py b/aces_1.0.0/python/aces_ocio/create_aces_config.py
index 1de65b1..8cf3d36 100755 (executable)
--- a/aces_1.0.0/python/aces_ocio/create_aces_config.py
+++ b/aces_1.0.0/python/aces_ocio/create_aces_config.py
@@ -15,6 +15,7 @@ import PyOpenColorIO as ocio
 import aces_ocio.create_aces_colorspaces as aces
 import aces_ocio.create_arri_colorspaces as arri
 import aces_ocio.create_canon_colorspaces as canon
+import aces_ocio.create_gopro_colorspaces as gopro
 import aces_ocio.create_panasonic_colorspaces as panasonic
 import aces_ocio.create_red_colorspaces as red
 import aces_ocio.create_sony_colorspaces as sony
@@ -504,6 +505,12 @@ def generate_LUTs(odt_info,
     for cs in canon_colorspaces:
         config_data['colorSpaces'].append(cs)
 
+    # *GoPro Protune* to *ACES*.
+    gopro_colorspaces = gopro.create_colorspaces(lut_directory,
+                                                 lut_resolution_1d)
+    for cs in gopro_colorspaces:
+        config_data['colorSpaces'].append(cs)
+
     # *Panasonic V-Log* to *ACES*.
     panasonic_colorSpaces = panasonic.create_colorspaces(lut_directory,
                                                          lut_resolution_1d)

diff --git a/aces_1.0.0/python/aces_ocio/create_gopro_colorspaces.py b/aces_1.0.0/python/aces_ocio/create_gopro_colorspaces.py
new file mode 100644 (file)
index 0000000..3e9ff54
--- /dev/null
+++ b/aces_1.0.0/python/aces_ocio/create_gopro_colorspaces.py
@@ -0,0 +1,160 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Implements support for *GoPro* colorspaces conversions and transfer functions.
+"""
+
+from __future__ import division
+
+import array
+import os
+
+import PyOpenColorIO as ocio
+
+import aces_ocio.generate_lut as genlut
+from aces_ocio.utilities import (ColorSpace, sanitize)
+
+__author__ = 'ACES Developers'
+__copyright__ = 'Copyright (C) 2014 - 2015 - ACES Developers'
+__license__ = ''
+__maintainer__ = 'ACES Developers'
+__email__ = 'aces@oscars.org'
+__status__ = 'Production'
+
+__all__ = ['create_protune',
+           'create_colorspaces']
+
+
+def create_protune(gamut,
+                   transfer_function,
+                   name,
+                   lut_directory,
+                   lut_resolution_1d,
+                   aliases):
+    """
+    Object description.
+
+    Protune to ACES.
+
+    Parameters
+    ----------
+    parameter : type
+        Parameter description.
+
+    Returns
+    -------
+    type
+         Return value description.
+    """
+
+    name = '%s - %s' % (transfer_function, gamut)
+    if transfer_function == '':
+        name = 'Linear - %s' % gamut
+    if gamut == '':
+        name = '%s' % transfer_function
+
+    cs = ColorSpace(name)
+    cs.description = name
+    cs.aliases = aliases
+    cs.equality_group = ''
+    cs.family = 'GoPro'
+    cs.is_data = False
+
+    # A linear space needs allocation variables
+    if transfer_function == '':
+        cs.allocation_type = ocio.Constants.ALLOCATION_LG2
+        cs.allocation_vars = [-8, 5, 0.00390625]
+
+    def protune_to_linear(normalized_code_value):
+        c1 = 113.0
+        c2 = 1.0
+        c3 = 112.0
+        linear = ((pow(c1, (normalized_code_value)) - c2) / c3)
+
+        return linear
+
+    cs.to_reference_transforms = []
+
+    if transfer_function == 'Protune Flat':
+        data = array.array('f', '\0' * lut_resolution_1d * 4)
+        for c in range(lut_resolution_1d):
+            data[c] = protune_to_linear(float(c) / (lut_resolution_1d - 1))
+
+        lut = '%s_to_linear.spi1d' % transfer_function
+        lut = sanitize(lut)
+        genlut.write_SPI_1d(
+            os.path.join(lut_directory, lut),
+            0,
+            1,
+            data,
+            lut_resolution_1d,
+            1)
+
+        cs.to_reference_transforms.append({
+            'type': 'lutFile',
+            'path': lut,
+            'interpolation': 'linear',
+            'direction': 'forward'})
+
+    if gamut == 'Protune Gamut':
+        cs.to_reference_transforms.append({
+            'type': 'matrix',
+            'matrix': [ 0.533448429,  0.32413911,  0.142412421, 0,
+                       -0.050729924,  1.07572006, -0.024990416, 0,
+                        0.071419661, -0.290521962, 1.219102381, 0,
+                       0, 0, 0, 1],
+            'direction': 'forward'})
+
+    cs.from_reference_transforms = []
+    return cs
+
+
+def create_colorspaces(lut_directory, lut_resolution_1d):
+    """
+    Generates the colorspace conversions.
+
+    Parameters
+    ----------
+    parameter : type
+        Parameter description.
+
+    Returns
+    -------
+    type
+         Return value description.
+    """
+
+    colorspaces = []
+
+    # Full conversion
+    protune_1 = create_protune(
+        'Protune Native',
+        'Protune Flat',
+        'Protune',
+        lut_directory,
+        lut_resolution_1d,
+        ["protuneflat_protunegamut"])
+    colorspaces.append(protune_1)
+
+    # Linearization Only
+    protune_2 = create_protune(
+        '',
+        'Protune Flat',
+        'Protune',
+        lut_directory,
+        lut_resolution_1d,
+        ["crv_protuneflat"])
+    colorspaces.append(protune_2)
+
+    # Primaries Only
+    protune_3 = create_protune(
+        'Protune Native',
+        '',
+        'Protune',
+        lut_directory,
+        lut_resolution_1d,
+        ["lin_protunegamut"])
+    colorspaces.append(protune_3)
+
+    return colorspaces

diff --git a/aces_1.0.0/python/aces_ocio/create_red_colorspaces.py b/aces_1.0.0/python/aces_ocio/create_red_colorspaces.py
index 3c88750..3f52e24 100644 (file)
--- a/aces_1.0.0/python/aces_ocio/create_red_colorspaces.py
+++ b/aces_1.0.0/python/aces_ocio/create_red_colorspaces.py
@@ -115,6 +115,13 @@ def create_RED_log_film(gamut,
                                         0.040787, 0.857658, 0.101553,
                                         -0.047504, -0.000282, 1.047756]),
             'direction': 'forward'})
+    elif gamut == 'REDcolor':
+        cs.to_reference_transforms.append({
+            'type': 'matrix',
+            'matrix': mat44_from_mat33([0.451464, 0.388498, 0.160038,
+                                        0.062716, 0.866790, 0.070491,
+                                        -0.017541, 0.086921, 0.930590]),
+            'direction': 'forward'})
     elif gamut == 'REDcolor2':
         cs.to_reference_transforms.append({
             'type': 'matrix',
@@ -177,6 +184,15 @@ def create_colorspaces(lut_directory, lut_resolution_1d):
         ["rlf_dgn2"])
     colorspaces.append(RED_log_film_dragon2)
 
+    RED_log_film_color = create_RED_log_film(
+        'REDcolor',
+        'REDlogFilm',
+        'REDlogFilm',
+        lut_directory,
+        lut_resolution_1d,
+        ["rlf_rc"])
+    colorspaces.append(RED_log_film_color)
+
     RED_log_film_color2 = create_RED_log_film(
         'REDcolor2',
         'REDlogFilm',
@@ -233,6 +249,15 @@ def create_colorspaces(lut_directory, lut_resolution_1d):
         ["lin_dgn2"])
     colorspaces.append(RED_dragon2)
 
+    RED_color = create_RED_log_film(
+        'REDcolor',
+        '',
+        'REDlogFilm',
+        lut_directory,
+        lut_resolution_1d,
+        ["lin_rc"])
+    colorspaces.append(RED_color)
+
     RED_color2 = create_RED_log_film(
         'REDcolor2',
         '',