1 files changed, 117 insertions, 0 deletions
diff --git a/src/blueshift-demomode-image.py b/src/blueshift-demomode-image.py
new file mode 100755
index 0000000..cbc7fe5
--- /dev/null
+++ b/src/blueshift-demomode-image.py
@@ -0,0 +1,117 @@
+#!/usr/bin/env python3
+copyright='''
+blueshift-demomode — Blueshift-effect demonstration tools
+Copyright Ⓒ 2014, 2015  Mattias Andrée (maandree@member.fsf.org)
+
+This library 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 3 of the License, or
+(at your option) any later version.
+
+This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
+'''
+
+
+import os, sys
+
+from argparser import *
+
+
+PROGRAM_NAME = 'blueshift-demomode'
+PROGRAM_VERSION = '1'
+IMAGE_COMMAND = 'bin/blueshift-demomode-image'
+
+
+parser = ArgParser('Blueshift-effect demonstration tools',
+                   sys.argv[0] + ' (options | [--] images-file)',
+                   None, None, True, ArgParser.standard_abbreviations())
+
+parser.add_argumentless(['-h', '-?', '--help'], 0, 'Print this help information')
+parser.add_argumentless(['-C', '--copying', '--copyright'], 0, 'Print copyright information')
+parser.add_argumentless(['-W', '--warranty'], 0, 'Print non-warranty information')
+parser.add_argumentless(['-v', '--version'], 0, 'Print program name and version')
+    
+parser.parse()
+parser.support_alternatives()
+
+if parser.opts['--help'] is not None:
+    parser.help()
+    sys.exit(0)
+elif parser.opts['--copyright'] is not None:
+    print(copyright[1 : -1])
+    sys.exit(0)
+elif parser.opts['--warranty'] is not None:
+    print(copyright.split('\n\n')[2])
+    sys.exit(0)
+elif parser.opts['--version'] is not None:
+    print('%s %s' % (PROGRAM_NAME, PROGRAM_VERSION))
+    sys.exit(0)
+
+
+if not len(parser.files) == 1:
+    print('%s: you must select exactly one image file' % sys.argv[0], file = sys.stderr);
+
+
+monitor = None
+data = sys.stdin.buffer.read().decode('utf-8', 'strict').split('\n')
+
+if monitor is not None:
+    buf = []
+    stage = 0
+    for d in data:
+        if stage == 0:
+            if d.startswith('monitors: '):
+                d = data[len('monitors: '):].split(' ')
+                if monitor in d:
+                    stage = 1
+        elif stage == 1:
+            if d.startswith('monitors: '):
+                break
+            buf.append(d)
+    data = buf
+
+data_max   = [d[len('max: '  ):] for d in data if d.startswith('max: '  )]
+data_red   = [d[len('red: '  ):] for d in data if d.startswith('red: '  )]
+data_green = [d[len('green: '):] for d in data if d.startswith('green: ')]
+data_blue  = [d[len('blue: ' ):] for d in data if d.startswith('blue: ' )]
+
+if any(map(lambda x : len(x) == 0, [data_max, data_red, data_green, data_blue])):
+    print('%s: could not find any gamma ramp data' % sys.argv[0], file = sys.stderr);
+    sys.exit(1)
+
+data_max   = data_max[0]
+data_red   = data_red[0]
+data_green = data_green[0]
+data_blue  = data_blue[0]
+
+
+command = [IMAGE_COMMAND, data_max, data_red, data_green, data_blue]
+
+
+os.close(0)
+(read_end, write_end) = os.pipe()
+pid = os.fork()
+
+if pid == 0:
+    os.close(read_end)
+    if not write_end == 1:
+        os.dup2(write_end, 1)
+        os.close(write_end)
+    fd = os.open(parser.files[0], os.O_RDONLY)
+    if not fd == 0:
+        os.dup2(fd, 0)
+        os.close(fd)
+    os.execvp('convert', ['convert', '-', 'pam:-'])
+else:
+    os.close(write_end)
+    if not read_end == 0:
+        os.dup2(read_end, 0)
+        os.close(read_end)
+    os.execvp(command[0], command)
+