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+#!/usr/bin/env python3
+
+# Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+def translate_to_integers():
+ '''
+ Translate the curves from float to integer
+
+ @param :(int, int, int) The red curve, the green curve and the blue curve, mapped to integers
+ '''
+ R_curve, G_curve, B_curve = [0] * i_size, [0] * i_size, [0] * i_size
+ for i_curve, o_curve in ((r_curve, R_curve), (g_curve, G_curve), (b_curve, B_curve)):
+ for i in range(i_size):
+ o_curve[i] = int(i_curve[i] * (o_size - 1) + 0.5)
+ if clip_result:
+ o_curve[i] = min(max(0, o_curve[i]), (o_size - 1))
+ return (R_curve, G_curve, B_curve)
+
+
+def randr(*crtcs):
+ '''
+ Applies colour curves using the X11 extension randr
+
+ @param *crtcs The CRT controllers to use, all are used if none are specified
+ '''
+ crtcs = sum([1 << i for i in list(crtcs)])
+ if crtcs == 0:
+ crtcs = -1;
+
+ (R_curve, G_curve, B_curve) = translate_to_integers()
+
+
+def print_curves(*crtcs):
+ '''
+ Prints the curves to stdout
+ '''
+ (R_curve, G_curve, B_curve) = translate_to_integers()
+ print(R_curve)
+ print(G_curve)
+ print(B_curve)
+