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
|
/**
* gammad -- Cooperative gamma server
* Copyright (C) 2016 Mattias Andrée (maandree@kth.se)
*
* 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/>.
*/
#include "output.h"
#include "util.h"
#include <stdlib.h>
#include <string.h>
/**
* Free all resources allocated to an output.
* The allocation of `output` itself is not freed.
*
* @param this The output
*/
void output_destroy(struct output* this)
{
size_t i;
if (this->supported != LIBGAMMA_NO)
switch (this->depth)
{
case 8:
libgamma_gamma_ramps8_destroy(&(this->saved_ramps.u8));
for (i = 0; i < this->table_size; i++)
libgamma_gamma_ramps8_destroy(&(this->table_sums[i].u8));
break;
case 16:
libgamma_gamma_ramps16_destroy(&(this->saved_ramps.u16));
for (i = 0; i < this->table_size; i++)
libgamma_gamma_ramps16_destroy(&(this->table_sums[i].u16));
break;
case 32:
libgamma_gamma_ramps32_destroy(&(this->saved_ramps.u32));
for (i = 0; i < this->table_size; i++)
libgamma_gamma_ramps32_destroy(&(this->table_sums[i].u32));
break;
case 64:
libgamma_gamma_ramps64_destroy(&(this->saved_ramps.u64));
for (i = 0; i < this->table_size; i++)
libgamma_gamma_ramps64_destroy(&(this->table_sums[i].u64));
break;
case -1:
libgamma_gamma_rampsf_destroy(&(this->saved_ramps.f));
for (i = 0; i < this->table_size; i++)
libgamma_gamma_rampsf_destroy(&(this->table_sums[i].f));
break;
case -2:
libgamma_gamma_rampsd_destroy(&(this->saved_ramps.d));
for (i = 0; i < this->table_size; i++)
libgamma_gamma_rampsd_destroy(&(this->table_sums[i].d));
break;
default:
break; /* impossible */
}
for (i = 0; i < this->table_size; i++)
filter_destroy(this->table_filters + i);
free(this->table_filters);
free(this->table_sums);
free(this->name);
}
/**
* Marshal an output
*
* @param this The output
* @param buf Output buffer for the marshalled output,
* `NULL` just measure how large the buffers
* needs to be
* @return The number of marshalled byte
*/
size_t output_marshal(const struct output* this, char* buf)
{
size_t off = 0, i, n;
if (buf != NULL)
*(signed*)(buf + off) = this->depth;
off += sizeof(signed);
if (buf != NULL)
*(size_t*)(buf + off) = this->red_size;
off += sizeof(size_t);
if (buf != NULL)
*(size_t*)(buf + off) = this->green_size;
off += sizeof(size_t);
if (buf != NULL)
*(size_t*)(buf + off) = this->blue_size;
off += sizeof(size_t);
if (buf != NULL)
*(size_t*)(buf + off) = this->ramps_size;
off += sizeof(size_t);
if (buf != NULL)
*(enum libgamma_decision*)(buf + off) = this->supported;
off += sizeof(enum libgamma_decision);
n = strlen(this->name) + 1;
if (buf != NULL)
memcpy(buf + off, this->name, n);
off += n;
off += gamma_ramps_marshal(&(this->saved_ramps), buf ? buf + off : NULL, this->ramps_size);
if (buf != NULL)
*(size_t*)(buf + off) = this->table_size;
off += sizeof(size_t);
for (i = 0; i < this->table_size; i++)
{
off += filter_marshal(this->table_filters + i, buf ? buf + off : NULL, this->ramps_size);
off += gamma_ramps_marshal(this->table_sums + i, buf ? buf + off : NULL, this->ramps_size);
}
return off;
}
/**
* Unmarshal an output
*
* @param this Output for the output
* @param buf Buffer with the marshalled output
* @return The number of unmarshalled bytes, 0 on error
*/
size_t output_unmarshal(struct output* this, const char* buf)
{
size_t off = 0, i, n;
this->crtc = NULL;
this->name = NULL;
this->depth = *(const signed*)(buf + off);
off += sizeof(signed);
this->red_size = *(const size_t*)(buf + off);
off += sizeof(size_t);
this->green_size = *(const size_t*)(buf + off);
off += sizeof(size_t);
this->blue_size = *(const size_t*)(buf + off);
off += sizeof(size_t);
this->ramps_size = *(const size_t*)(buf + off);
off += sizeof(size_t);
this->supported = *(const enum libgamma_decision*)(buf + off);
off += sizeof(enum libgamma_decision);
n = strlen(buf + off) + 1;
this->name = memdup(buf + off, n);
if (this->name == NULL)
return 0;
off += n = gamma_ramps_unmarshal(&(this->saved_ramps), buf, this->ramps_size);
COPY_RAMP_SIZES(&(this->saved_ramps.u8), this);
if (n == 0)
return 0;
this->table_size = this->table_alloc = *(const size_t*)(buf + off);
off += sizeof(size_t);
if (this->table_size > 0)
{
this->table_filters = calloc(this->table_size, sizeof(*(this->table_filters)));
if (this->table_filters == NULL)
return 0;
this->table_sums = calloc(this->table_size, sizeof(*(this->table_sums)));
if (this->table_sums == NULL)
return 0;
}
for (i = 0; i < this->table_size; i++)
{
off += n = filter_unmarshal(this->table_filters + i, buf + off, this->ramps_size);
if (n == 0)
return 0;
COPY_RAMP_SIZES(&(this->table_sums[i].u8), this);
off += n = gamma_ramps_unmarshal(this->table_sums + i, buf + off, this->ramps_size);
if (n == 0)
return 0;
}
return off;
}
/**
* Compare to outputs by the names of their respective CRTC:s
*
* @param a Return -1 if this one is lower
* @param b Return +1 if this one is higher
* @return See description of `a` and `b`,
* 0 if returned if they are the same
*/
int output_cmp_by_name(const void* a, const void* b)
{
const char* an = ((const struct output*)a)->name;
const char* bn = ((const struct output*)b)->name;
return strcmp(an, bn);
}
|
