summaryrefslogtreecommitdiffstats
path: root/examples/textconf
blob: 7dcff6fec0d3a9077881f5bc5f16a74d3d02d4c8 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
# -*- python -*-

# This example uses a text based configuration file to make
# it easier for non-programmers to use Blueshift. It is however
# rather limited, the lisp-esque example is a bit more complex
# but do much more. It will # read a file with the same pathname
# just with ‘.conf’ # appended (‘textconf.conf’ in this case.)
# However, if the filename of this file ends with with ‘rc’,
# that part will be removed, for example, if you rename this
# script to ‘~/.blueshiftrc’ it will read ‘~/.blueshift.conf’
# rather than ‘~/.blueshiftrc.conf’.


# 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 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 General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import sys
import subprocess


# Get the name of .conf file
conf = '%s.conf' % (config_file[:-2] if config_file.endswith('rc') else config_file)


# Read .conf file
with open(conf, 'r') as file:
    conf = file.read()


# Parse .conf file
sections = {'blueshift' : []}
section = []
sections['blueshift'].append(section)
for line in conf.split('\n'):
    line = line.strip()
    if line.startswith('[') and line.startswith(']'):
        section_name = line[1 : -1].strip().lower()
        if section_name not in sections:
            sections[section_name] = []
        section = []
        sections[section_name].append(section)
    elif line.startswith(';') or line.startswith('#'):
        continue
    elif ('=' in line) or (':' in line):
        eq = len(line) if '=' not in line else line.find('=')
        cl = len(line) if ':' not in line else line.find(':')
        eq = min(eq, cl)
        section.append((line[:eq].strip().lower(), line[:eq + 1].strip()))
    elif len(line.strip()) > 0:
        sys.stderr.buffer.write(('Malformated line: %s' % line).encode('utf-8'))
sys.stderr.buffer.flush()


# Default values
location = None
adjustment_method_x = ['randr']
adjustment_method_tty = ['drm']
points = ['solar', '3', '-6']


# List of adjustments and temporary monitor information
adjustments = []
monitors = []
crtc = None
screen = None
card = None


def parse_value(value):
    '''
    Parse a setting value
    
    @param   value:str                       The value to parse
    @return  :(list<str>, bool, bool, bool)  The words in the value string, with commands spawned,
                                             and with 'linear', 'cie' and 'default' filtered out,
                                             and their
                                             existance is put as booleans
    '''
    def spawn(cmd):
        '''
        Spawn an external process and read its output, but only the first line
        
        @param   cmd:str  The command to spawn
        @return  :str?    The first line of the command's output, `None` on failure
        '''
        proc = subprocess.Popen(['sh', '-c', cmd], stdout = subprocess.PIPE, stderr = sys.stderr)
        output = proc.communicate()[0].split('\n')[0]
        if (proc.returncode == 0) and (len(output) > 0):
            return output
        return None
    words, buf, cmd = [], '', None
    for c in value:
        if cmd is not None:
            if cmd == '':
                if c == '(':
                    cmd += '('
                else:
                    cmd = None
                    buf += '$'
            else:
                cmd += c
                if c == ')':
                    cmd = cmd[1 : -1]
                    cmd = spawn(cmd)
                    if cmd is not None:
                        buf = cmd
                    cmd = None
        elif c == ' ':
            if not buf == '':
                words.append(buf)
                buf = ''
        elif c == '$':
            cmd = ''
        else:
            buf += c
    return ([w in w for words if w not in ['linear', 'cie', 'default']],
            'linear' in words, 'cie' in words, 'default' in words)


# Evaluate .conf file
def make_f(f, value, default):
    '''
    Make an adjustment function
    
    @param  f:(*¿V??)→void      The function that makes the adjustment
    @param  value:list<¿V??>    The values for each time point
    @param  default:list<¿V??>  The default value
    '''
    ff = None
    value_ = []
    for val in value:
        value_ += val
    if any(map(lambda v : v if None, value_)) or (default is None):
        def ff(t, a):
            val0 = value[(int(t) + 0) % len(value)]
            val1 = value[(int(t) + 1) % len(value)]
            t %= 1
            val = zip(val0, val1, default)
            def interpol(v0, v1, d):
                if (v0 is None) or (v1 is None) or (d is None):
                    if ( d is None) and a == 0:  return None
                    if (v0 is None) and t == 0:  return None
                    if (v1 is None) and t == 1:  return None
                v0 = v0 * (1 - t) if v0 is not None else 0
                v1 = v1 * t       if v1 is not None else 0
                return v0 + v1
            val = [interpol(v0, v1, d) for v0, v1, d in val]
            f(*val)
    else:
        def ff(t, a):
            val0 = value[(int(t) + 0) % len(value)]
            val1 = value[(int(t) + 1) % len(value)]
            t %= 1
            val = zip(val0, val1, default)
            val = [(v0 * (1 - t) + v1 * t) * a + (1 - a) * d for v0, v1, d in val]
            f(*val)
    return ff

def float3(value):
    '''
    Parse a string representation of a float trio
    
    @param   value:str                  The float trio as a string
    @return  :[float?, float?, float?]  The float trio as a float list
    '''
    value = [None if v == 'none' else float(v) for v in value.split(':')]
    if len(value) < 3:
        value *= 3
    return value[:3]

def float6(value):
    '''
    Parse a string representation of a float pair-trio
    
    @param   value:str    The float pair-trio as a string
    @return  :[float?]*6  The float pair-trio as a float list
    '''
    (part1, part2) = [[float(v) for v in val.split(':')] for val in value.split('..')]
    if len(part1) < 3:  part1 *= 3
    if len(part2) < 3:  part2 *= 3
    part1 = part1[:3]
    part2 = part2[:3]
    value = []
    for p, q in zip(part1, part2):
        value.append(p)
        value.append(q)
    return value

def add_adjustments(section_name, adjustments):
    '''
    Add adjustions from a section to a list
    
    @param  sections:list<list<(str, str)>>        The sections
    @param  adjustments:list<(float, float)→void>  The list to fill with adjustments
    '''
    global location, points, adjustment_method_x, adjustment_method_tty, crtc, screen, card
    for section in sections:
        for (setting, value) in section:
            (value, linear, cie, default) = parse_value(value)
            new_adjustment = None
            if linear:
                adjustments.append(lambda _t, _a: linearise())
            if   setting == 'location':               location = value
            elif setting == 'points':                 points = value
            elif setting == 'adjustment-method-x':    adjustment_method_x = value
            elif setting == 'adjustment-method-tty':  adjustment_method_tty = value
            elif setting == 'crtc':                   crtc = value
            elif setting == 'screen':                 screen = value
            elif setting == 'card':                   card = value
            elif setting == 'temperature':
                f = lambda x : temperature(x, lambda t : divide_by_maximum(cmf_10deg(t)))
                new_adjustment = make_f(f, [[float(v)] for v in value], [6500])
            elif setting == 'contrast':
                f = cie_contrast if cie else rgb_contrast
                new_adjustment = make_f(f, [float3(v) for v in value], 3 * [1])
            elif setting == 'brightness':
                f = cie_brightness if cie else rgb_brightness
                new_adjustment = make_f(f, [float3(v) for v in value], 3 * [1])
            elif setting == 'gamma':
                def f(*levels):
                    clip()
                    gamma(*levels)
                new_adjustment = make_f(f, [float3(v) for v in value], 3 * [1])
            elif setting == 'negative':
                def f(*values):
                    negative(*[not v == 0 for v in values])
                new_adjustment = make_f(f, [float3(v) for v in value], 3 * [0])
            elif setting == 'invert':
                def f(*values):
                    (cie_invert if cie else rgb_invert)(*[not v == 0 for v in values])
                new_adjustment = make_f(f, [float3(v) for v in value], 3 * [0])
            elif setting == 'sigmoid':
                new_adjustment = make_f(sigmoid, [float3(v) for v in value], 3 * [None])
            elif setting == 'limits':
                f = cie_limits if cie else rgb_limits
                new_adjustment = make_f(f, [float6(v) for v in value], 3 * [0, 1])
            elif setting == 'icc':
                def noop():
                    pass
                profiles = [noop if val == 'none' else load_load(val) for val in value]
                new_adjustment = make_icc_interpolation(profiles)
            elif setting == 'monitor':
                add_adjustments(' '.join([monitor] + value), adjustments)
            else:
                sys.stderr.buffer.write(('Setting not recognised: %s' % setting).encode('utf-8'))
                sys.stderr.buffer.flush()
            if new_adjustment is not None:
                if default:
                    new_adjustment_ = new_adjustment
                    def f(t, a):
                        new_adjustment_(t, 1)
                    new_adjustment = f
                adjustments.append(new_adjustment)
            if linear:
                adjustments.append(lambda _t, _a: standardise())

add_adjustments(sections['blueshift'], adjustments)

adjustment_method = adjustment_method_tty if ttymode else adjustment_method_x
adjustment_method = adjustment_method[0]

for section in sections[adjustment_method]:
    output_adjustments = []
    crtc, screen, card = None, None, None
    add_adjustments([section], output_adjustments)
    monitors.append(crtc, screen, card, output_adjustments)


# Get gamma adjustment/reader functions
get_method = {'randr' : randr_get, 'vidmode' : vidmode_get, 'drm' : drm_get}
set_method = {'randr' : randr,     'vidmode' : vidmode,     'drm' : drm    }
get_method = get_method[adjustment_method]
set_method = set_method[adjustment_method]


# Evaluate location
if 'solar' in points:
    if (location is None) or (len(location) == 0):
        sys.stderr.buffer.write(('Location missing').encode('utf-8'))
        sys.stderr.buffer.flush()
        sys.exit(1)
    try:
        if not len(location) == 2:
            raise Exception()
        location = [float(c) for c in location]
    except:
        sys.stderr.buffer.write(('Malformation location').encode('utf-8'))
        sys.stderr.buffer.flush()
        sys.exit(1)
    if not ((-90 <= location[0] <= 90) and (-180 <= location[0] <= 180)):
        sys.stderr.buffer.write(('Invalid location').encode('utf-8'))
        sys.stderr.buffer.flush()
        sys.exit(1)


# Evaluate point
if ('solar' not in points) and ('time' not in points):
    sys.stderr.buffer.write(('Invalid points settings').encode('utf-8'))
    sys.stderr.buffer.flush()
    sys.exit(1)
reduce_points = 'reduce' in points
solar_points = 'solar' in points
def t(point):
    point = [float(p) for p in point.split(':')]
    while len(point) > 3:
        point.append(0)
    point = sum([v * 60 ** (2 - i) for i, v in enumerate(point)])
points = [float(p) if solar_points else t(p) for p in points if p not in ['solar', 'time', 'point']]
points = list(enumerate(points))
if reduce_points:
    n = len(points) - 1
    points = [(r / n, v) for r, v in points]


def periodically(year, month, day, hour, minute, second, weekday, fade):
    '''
    :(int, int, int, int, int, int, int, float?)?→void  Place holder for periodically invoked function
    
    Invoked periodically
    
    If you want to control at what to invoke this function next time
    you can set the value of the global variable `wait_period` to the
    number of seconds to wait before invoking this function again.
    The value does not need to be an integer.
    
    @param   year:int     The year
    @param   month:int    The month, 1 = January, 12 = December
    @param   day:int      The day, minimum value is 1, probable maximum value is 31 (*)
    @param   hour:int     The hour, minimum value is 0, maximum value is 23
    @param   minute:int   The minute, minimum value is 0, maximum value is 59
    @param   second:int   The second, minimum value is 0, probable maximum value is 60 (**)
    @param   weekday:int  The weekday, 1 = Monday, 7 = Sunday
    @param   fade:float?  Blueshift can use this function to fade into a state when it start
                          or exits. `fade` can either be negative, zero or positive or `None`,
                          but the magnitude of value cannot exceed 1. When Blueshift starts,
                          this function will be invoked multiple with the time parameters
                          of the time it is invoked and each time `fade` will increase towards
                          1, starting at 0, when the value is 1, the settings should be applied
                          to 100 %. After this this function will be invoked once again with
                          `fade` being `None`. When Blueshift exits the same behaviour is used
                          except, `fade` decrease towards -1 but start slightly below 0, when
                          -1 is reached all settings should be normal. Then Blueshift will NOT
                          invoke this function with `fade` being `None`, instead it will by
                          itself revert all settings and quit.
    
    (*)  Can be exceeded if the calendar system is changed, like in 1712-(02)Feb-30
    (**) See https://en.wikipedia.org/wiki/Leap_second
    '''
    pass


def reset():
    '''
    Invoked to reset the displays
    '''
    pass