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
|
# -*- python -*-
# 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/>.
cimport cython
from libc.stdlib cimport malloc, free
cdef extern int blueshift_vidmode_open(int use_screen, char* display)
'''
Start stage of colour curve control
@param use_screen The screen to use
@param display The display to use, `NULL` for the current one
@return Zero on error, otherwise the size of colours curves
'''
cdef extern int blueshift_vidmode_read(int use_crtc,
unsigned short int* r_curve,
unsigned short int* g_curve,
unsigned short int* b_curve)
'''
Gets the current colour curves
@param use_crtc The CRTC to use
@param r_gamma Storage location for the red colour curve
@param g_gamma Storage location for the green colour curve
@param b_gamma Storage location for the blue colour curve
@return Zero on success
'''
cdef extern int blueshift_vidmode_apply(unsigned long long int use_crtcs,
unsigned short int* r_curve,
unsigned short int* g_curve,
unsigned short int* b_curve)
'''
Apply stage of colour curve control
@param use_crtcs Mask of CRTC:s to use
@param r_curve The red colour curve
@param g_curve The green colour curve
@param b_curve The blue colour curve
@return Zero on success
'''
cdef extern void blueshift_vidmode_close()
'''
Resource freeing stage of colour curve control
'''
cdef int vidmode_gamma_size
vidmode_gamma_size = 0
cdef unsigned short int* r_c
cdef unsigned short int* g_c
cdef unsigned short int* b_c
def vidmode_open(int use_screen, display):
'''
Start stage of colour curve control
@param use_screen The screen to use
@param display:bytes? The display to use, `None` for the current
@return :bool Whether call was successful
'''
global vidmode_gamma_size, r_c, g_c, b_c
cdef char* display_ = NULL
if display is not None:
display_ = display
r_c = <unsigned short int*>malloc(256 * 2)
g_c = <unsigned short int*>malloc(256 * 2)
b_c = <unsigned short int*>malloc(256 * 2)
if (r_c is NULL) or (g_c is NULL) or (b_c is NULL):
raise MemoryError()
vidmode_gamma_size = blueshift_vidmode_open(use_screen, display_)
return vidmode_gamma_size > 1
def vidmode_read(int use_crtc):
'''
Gets the current colour curves
@param use_crtc The CRTC to use
@return :(r:list<int>, g:list<int>, b:list<int>) The current red, green and blue colour curves
'''
if not blueshift_vidmode_read(use_crtc, r_c, g_c, b_c) == 0:
raise Exception()
r, g, b = [], [], []
for i in range(vidmode_gamma_size):
r.append(r_c[i])
g.append(g_c[i])
b.append(b_c[i])
return (r, g, b)
def vidmode_apply(unsigned long long use_crtcs, r_curve, g_curve, b_curve):
'''
Apply stage of colour curve control
@param use_crtcs Mask of CRTC:s to use
@param r_curve:list<unsigned short int> The red colour curve
@param g_curve:list<unsigned short int> The green colour curve
@param b_curve:list<unsigned short int> The blue colour curve
@return Zero on success
'''
for i in range(256):
r_c[i] = r_curve[i] & 0xFFFF
g_c[i] = g_curve[i] & 0xFFFF
b_c[i] = b_curve[i] & 0xFFFF
return blueshift_vidmode_apply(use_crtcs, r_c, g_c, b_c)
def vidmode_close():
'''
Resource freeing stage of colour curve control
'''
free(r_c)
free(g_c)
free(b_c)
blueshift_vidmode_close()
|
