Compute LUTs at run-time.dynamic-lut

1 files changed, 0 insertions, 127 deletions

diff --git a/lut.py b/lut.py
deleted file mode 100644
index 9dd4ff20..00000000
--- a/lut.py
+++ /dev/null
@@ -1,127 +0,0 @@
-from __future__ import print_function
-import math
-
-BIT_DEPTH = 12
-DCI_GAMMA = 2.6
-SRGB_GAMMA = 2.4;
-BIT_LENGTH = int(math.pow(2, BIT_DEPTH))
-COLOR_DEPTH = BIT_LENGTH - 1
-
-def boilerplate(f):
-    print("""/*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-
-/* This file is auto-generated by the build scripts; edits will be lost
-   on ./waf configure.
-*/
-""", file=f)
-
-def make_luts():
-    cc = open('src/lut.cc', 'w')
-
-    boilerplate(cc)
-
-    print("#include \"lut.h\"", file=cc)
-
-    print("""
-/* sRGB color matrix for XYZ -> RGB */
-float color_matrix[3][3] = {
-  { 3.240454836, -1.537138850, -0.498531547},
-  {-0.969266390,  1.876010929,  0.041556082},
-  { 0.055643420, -0.204025854,  1.057225162}
-};\n\n
-""", file=cc)
-
-    print("""
-float lut_in[COLOR_DEPTH + 1] = {\n
-\t/* Bit depth:       %d
-\t * Reference white: DCI
-\t * Gamma:           %f
-\t */
-""" % (BIT_DEPTH, DCI_GAMMA), file=cc)
-
-    c = 0
-    for i in range(0, BIT_LENGTH):
-        v = math.pow (i / (BIT_LENGTH - 1.0), DCI_GAMMA);
-
-        if (c == 0):
-            print("    ", end='', file=cc)
-
-        if i < BIT_LENGTH - 1:
-            print("%06f, " % v, end="", file=cc)
-            if c == 12:
-                c = 0;
-                print("", file=cc)
-            else:
-                c += 1
-        else:
-            print("%06f" % v, file=cc)
-
-    print("};", file=cc)
-
-    print("""
-int lut_out[COLOR_DEPTH + 1] = {
-\t/* Bit depth:       %d
-\t * Reference white: sRGB
-\t * Gamma:           %f
-\t */
-""", file=cc)
-
-    c = 0
-    for i in range (0, BIT_LENGTH):
-        v = i / (BIT_LENGTH - 1.0)
-
-        if (v < (0.04045 / 12.92)):
-            v *= 12.92
-        else:
-            v = (1.055 * pow (v, (1 / SRGB_GAMMA))) - 0.055
-
-        v *= 255
-
-        if c == 0:
-            print("    ", end="", file=cc)
-
-        if i < BIT_LENGTH - 1:
-            print("%d, " % v, end="", file=cc)
-            if c == 12:
-                c = 0;
-                print("", file=cc)
-            else:
-                c += 1
-        else:
-            print("%d" % v, file=cc)
-
-    print("};", file=cc)
-            
-    h = open('src/lut.h', 'w')
-
-    boilerplate(h)
-
-    print("""
-#define COLOR_DEPTH     (%d)
-#define DCI_COEFFICIENT (48.0/52.37)
-
-extern float color_matrix[3][3];
-extern int lut_out[COLOR_DEPTH + 1];
-extern float lut_in[COLOR_DEPTH + 1];
-""" % COLOR_DEPTH, file=h)
-
-if __name__ == "__main__":
-    make_luts()