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
|
/* See LICENSE file for copyright and license details. */
#include "crtcinfo.h"
/**
* Conditionally print a CRTC information field
*
* @param type:data-type Data type for the value of the information field
* @param notation:string-literal %-pattern for `printf` (excluding the %) that is used for `type`
* @param do_print Whether the information should be included in the process's output
* @param description A description of the information field
* @param error The error of the information field
* @param value The value of the information field
*/
#define print_crtc_information_(type, notation)\
static void\
print_crtc_information_##type(int do_print, const char *description, int error, type value)\
{\
char buf[256];\
if (do_print) {\
if (error) {\
snprintf(buf, sizeof(buf) / sizeof(char), " (error) %s", description);\
libgamma_perror(buf, error);\
} else {\
printf(" %s: %" notation "\n", description, value);\
}\
}\
}
/**
* A single [a-z] word alternative to `const char*`, we need it for the
* function name of the string variant of `print_crtc_information_*`
*/
typedef const char *str;
/* Create `print_crtc_information_*` variants */
print_crtc_information_(size_t, "lu")
print_crtc_information_(signed, "i")
print_crtc_information_(int, "i")
#ifdef __GCC__
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wdouble-promotion"
#endif
print_crtc_information_(float, "f")
#ifdef __GCC__
# pragma GCC diagnostic pop
#endif
print_crtc_information_(str, "s")
#undef print_crtc_information_
#define __case(VALUE) case VALUE: return #VALUE
/**
* Get a string representation of a subpixel order
*
* @param value The subpixel order
* @return String representation
*/
static const char *
subpixel_order_str(libgamma_subpixel_order_t value)
{
switch (value) {
__case (LIBGAMMA_SUBPIXEL_ORDER_UNKNOWN);
__case (LIBGAMMA_SUBPIXEL_ORDER_NONE);
__case (LIBGAMMA_SUBPIXEL_ORDER_HORIZONTAL_RGB);
__case (LIBGAMMA_SUBPIXEL_ORDER_HORIZONTAL_BGR);
__case (LIBGAMMA_SUBPIXEL_ORDER_VERTICAL_RGB);
__case (LIBGAMMA_SUBPIXEL_ORDER_VERTICAL_BGR);
default:
return "(unknown)";
}
}
/**
* Get a string representation of a connector type
*
* @param value The connector type
* @return String representation
*/
static const char *
connector_type_str(libgamma_connector_type_t value)
{
switch (value) {
__case (LIBGAMMA_CONNECTOR_TYPE_Unknown);
__case (LIBGAMMA_CONNECTOR_TYPE_VGA);
__case (LIBGAMMA_CONNECTOR_TYPE_DVI);
__case (LIBGAMMA_CONNECTOR_TYPE_DVII);
__case (LIBGAMMA_CONNECTOR_TYPE_DVID);
__case (LIBGAMMA_CONNECTOR_TYPE_DVIA);
__case (LIBGAMMA_CONNECTOR_TYPE_Composite);
__case (LIBGAMMA_CONNECTOR_TYPE_SVIDEO);
__case (LIBGAMMA_CONNECTOR_TYPE_LVDS);
__case (LIBGAMMA_CONNECTOR_TYPE_Component);
__case (LIBGAMMA_CONNECTOR_TYPE_9PinDIN);
__case (LIBGAMMA_CONNECTOR_TYPE_DisplayPort);
__case (LIBGAMMA_CONNECTOR_TYPE_HDMI);
__case (LIBGAMMA_CONNECTOR_TYPE_HDMIA);
__case (LIBGAMMA_CONNECTOR_TYPE_HDMIB);
__case (LIBGAMMA_CONNECTOR_TYPE_TV);
__case (LIBGAMMA_CONNECTOR_TYPE_eDP);
__case (LIBGAMMA_CONNECTOR_TYPE_VIRTUAL);
__case (LIBGAMMA_CONNECTOR_TYPE_DSI);
__case (LIBGAMMA_CONNECTOR_TYPE_LFP);
default:
return "(unknown)";
}
}
/**
* Get a string representation of a decision
*
* @param value The decision
* @return String representation
*/
static const char *
decision_str(libgamma_decision_t value)
{
switch (value) {
__case (LIBGAMMA_NO);
__case (LIBGAMMA_MAYBE);
__case (LIBGAMMA_YES);
default:
return "(unknown)";
}
}
#undef __case
/**
* The CRTC information for a CRTC
*
* @param crtc The CRTC
*/
void
crtc_information(libgamma_crtc_state_t *restrict crtc)
{
libgamma_method_capabilities_t caps;
libgamma_crtc_information_t info;
int fields, field;
char *edid_lc, *edid_uc;
unsigned char *edid_raw;
/* Get supported CRTC informations fields */
libgamma_method_capabilities(&caps, crtc->partition->site->method);
/* List unsupport information fields by testing them one by one */
for (fields = caps.crtc_information; field = fields & -fields, fields; fields ^= field) {
if (libgamma_get_crtc_information(&info, crtc, field))
printf("Could not read CRTC information field %i\n", field);
free(info.edid);
free(info.connector_name);
}
/* Get CRTC information, that is supported */
fields = caps.crtc_information;
if (libgamma_get_crtc_information(&info, crtc, fields))
printf("An error occurred while reading CRTC information\n");
/* Macros for printing CRTC information */
#define print2(TYPE, FIELD_ID, DESCRIPTION, FIELD_VAR, ERROR_VAR)\
print_crtc_information_##TYPE(fields & FIELD_ID, DESCRIPTION, info.ERROR_VAR, info.FIELD_VAR);
#define print(TYPE, FIELD_ID, DESCRIPTION, FIELD_VAR)\
print2(TYPE, FIELD_ID, DESCRIPTION, FIELD_VAR, FIELD_VAR##_error);
/* Print CRTC information */
printf("CRTC information:\n");
/* Print the EDID field */
if ((fields & LIBGAMMA_CRTC_INFO_EDID)) {
if (info.edid_error) {
libgamma_perror(" (error) EDID", info.edid_error);
} else {
edid_lc = libgamma_behex_edid(info.edid, info.edid_length);
edid_raw = libgamma_unhex_edid(edid_lc);
edid_uc = libgamma_behex_edid_uppercase(edid_raw, info.edid_length);
printf(" EDID: %s\n", edid_lc);
printf(" EDID (uppercase): %s\n", edid_uc);
printf(" EDID (length): %lu\n", info.edid_length);
free(edid_lc);
free(edid_raw);
free(edid_uc);
}
}
/* Print physical dimensions of the monitor */
print(size_t, LIBGAMMA_CRTC_INFO_WIDTH_MM, "width", width_mm);
print(size_t, LIBGAMMA_CRTC_INFO_HEIGHT_MM, "height", height_mm);
print(size_t, LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID, "width per EDID", width_mm_edid);
print(size_t, LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID, "height per EDID", height_mm_edid);
/* Print gamma ramp information */
print2(size_t, LIBGAMMA_CRTC_INFO_GAMMA_SIZE, "red gamma ramp size", red_gamma_size, gamma_size_error);
print2(size_t, LIBGAMMA_CRTC_INFO_GAMMA_SIZE, "green gamma ramp size", green_gamma_size, gamma_size_error);
print2(size_t, LIBGAMMA_CRTC_INFO_GAMMA_SIZE, "blue gamma ramp size", blue_gamma_size, gamma_size_error);
print(signed, LIBGAMMA_CRTC_INFO_GAMMA_DEPTH, "gamma ramp depth", gamma_depth);
/* Print gamma ramp support */
if (fields & LIBGAMMA_CRTC_INFO_GAMMA_SUPPORT) {
if (info.gamma_support_error)
libgamma_perror(" (error) gamma support", info.gamma_support_error);
else
printf(" gamma support: %s\n", decision_str(info.gamma_support));
}
/* Print subpixel order for the monitor */
if (fields & LIBGAMMA_CRTC_INFO_SUBPIXEL_ORDER) {
if (info.subpixel_order_error)
libgamma_perror(" (error) subpixel order", info.subpixel_order_error);
else
printf(" subpixel order: %s\n", subpixel_order_str(info.subpixel_order));
}
/* Print connector information */
print(int, LIBGAMMA_CRTC_INFO_ACTIVE, "active", active);
print(str, LIBGAMMA_CRTC_INFO_CONNECTOR_NAME, "connector name", connector_name);
if (fields & LIBGAMMA_CRTC_INFO_CONNECTOR_TYPE) {
if (info.connector_type_error)
libgamma_perror(" (error) subpixel order", info.connector_type_error);
else
printf(" subpixel order: %s\n", connector_type_str(info.connector_type));
}
/* Print the gamma characteristics of the monitor */
print2(float, LIBGAMMA_CRTC_INFO_GAMMA, "red gamma characteristics", gamma_red, gamma_error);
print2(float, LIBGAMMA_CRTC_INFO_GAMMA, "green gamma characteristics", gamma_green, gamma_error);
print2(float, LIBGAMMA_CRTC_INFO_GAMMA, "blue gamma characteristics", gamma_blue, gamma_error);
printf("\n");
#undef print
#undef print2
/* Release resouces */
free(info.edid);
free(info.connector_name);
}
|
