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
|
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <utility>
#include <stdexcept>
#include <string.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include "kms++.h"
#ifndef DRM_CLIENT_CAP_ATOMIC
#define DRM_CLIENT_CAP_ATOMIC 3
#endif
namespace kms
{
Card::Card()
{
const char *card = "/dev/dri/card0";
int fd = open(card, O_RDWR | O_CLOEXEC);
if (fd < 0)
throw std::invalid_argument("foo");
m_fd = fd;
int r;
r = drmSetMaster(fd);
m_master = r == 0;
r = drmSetClientCap(m_fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
if (r)
throw std::invalid_argument("foo");
r = drmSetClientCap(m_fd, DRM_CLIENT_CAP_ATOMIC, 1);
m_has_atomic = r == 0;
uint64_t has_dumb;
r = drmGetCap(fd, DRM_CAP_DUMB_BUFFER, &has_dumb);
if (r || !has_dumb)
throw std::invalid_argument("foo");
auto res = drmModeGetResources(m_fd);
if (!res)
throw std::invalid_argument("foo");
for (int i = 0; i < res->count_connectors; ++i) {
uint32_t id = res->connectors[i];
m_obmap[id] = new Connector(*this, id, i);
}
for (int i = 0; i < res->count_crtcs; ++i) {
uint32_t id = res->crtcs[i];
m_obmap[id] = new Crtc(*this, id, i);
}
for (int i = 0; i < res->count_encoders; ++i) {
uint32_t id = res->encoders[i];
m_obmap[id] = new Encoder(*this, id);
}
drmModeFreeResources(res);
auto planeRes = drmModeGetPlaneResources(m_fd);
for (uint i = 0; i < planeRes->count_planes; ++i) {
uint32_t id = planeRes->planes[i];
m_obmap[id] = new Plane(*this, id);
}
drmModeFreePlaneResources(planeRes);
// collect all possible props
for (auto ob : get_objects()) {
auto props = drmModeObjectGetProperties(m_fd, ob->id(), ob->object_type());
if (props == nullptr)
continue;
for (unsigned i = 0; i < props->count_props; ++i) {
uint32_t prop_id = props->props[i];
if (m_obmap.find(prop_id) == m_obmap.end())
m_obmap[prop_id] = new Property(*this, prop_id);
}
drmModeFreeObjectProperties(props);
}
for (auto pair : m_obmap)
pair.second->setup();
}
Card::~Card()
{
for (auto pair : m_obmap)
delete pair.second;
close(m_fd);
}
template <class T> static void print_obs(const std::map<uint32_t, DrmObject*>& obmap)
{
for (auto pair : obmap) {
auto ob = pair.second;
if (dynamic_cast<T*>(ob)) {
ob->print_short();
//ob->print_props();
}
}
}
void Card::print_short() const
{
print_obs<Connector>(m_obmap);
print_obs<Encoder>(m_obmap);
print_obs<Crtc>(m_obmap);
print_obs<Plane>(m_obmap);
}
Property* Card::get_prop(const char *name) const
{
for (auto pair : m_obmap) {
auto prop = dynamic_cast<Property*>(pair.second);
if (!prop)
continue;
if (strcmp(name, prop->name()) == 0)
return prop;
}
throw std::invalid_argument("foo");
}
Connector* Card::get_first_connected_connector() const
{
for(auto pair : m_obmap) {
auto c = dynamic_cast<Connector*>(pair.second);
if (c && c->connected())
return c;
}
throw std::invalid_argument("no connected connectors");
}
DrmObject* Card::get_object(uint32_t id) const
{
return m_obmap.at(id);
}
std::vector<Connector*> Card::get_connectors() const
{
std::vector<Connector*> v;
for(auto pair : m_obmap) {
auto p = dynamic_cast<Connector*>(pair.second);
if (p)
v.push_back(p);
}
return v;
}
std::vector<Plane*> Card::get_planes() const
{
std::vector<Plane*> v;
for(auto pair : m_obmap) {
auto p = dynamic_cast<Plane*>(pair.second);
if (p)
v.push_back(p);
}
return v;
}
std::vector<DrmObject*> Card::get_objects() const
{
std::vector<DrmObject*> v;
for(auto pair : m_obmap)
v.push_back(pair.second);
return v;
}
Crtc* Card::get_crtc_by_index(uint32_t idx) const
{
for(auto pair : m_obmap) {
auto crtc = dynamic_cast<Crtc*>(pair.second);
if (crtc && crtc->idx() == idx)
return crtc;
}
throw std::invalid_argument("fob");
}
Crtc* Card::get_crtc(uint32_t id) const { return dynamic_cast<Crtc*>(get_object(id)); }
Encoder* Card::get_encoder(uint32_t id) const { return dynamic_cast<Encoder*>(get_object(id)); }
Property* Card::get_prop(uint32_t id) const { return dynamic_cast<Property*>(get_object(id)); }
}
|
