1 #include <stdio.h>
2 #include <iostream>
3 #include <unistd.h>
4 #include <fcntl.h>
5 #include <cassert>
6
7 #include <kms++/kms++.h>
8 #include "helpers.h"
9
10 using namespace std;
11
12 namespace kms
13 {
14
15 struct CrtcPriv
16 {
17 drmModeCrtcPtr drm_crtc;
18 };
19
Crtc(Card & card,uint32_t id,uint32_t idx)20 Crtc::Crtc(Card &card, uint32_t id, uint32_t idx)
21 :DrmPropObject(card, id, DRM_MODE_OBJECT_CRTC, idx)
22 {
23 m_priv = new CrtcPriv();
24 m_priv->drm_crtc = drmModeGetCrtc(this->card().fd(), this->id());
25 assert(m_priv->drm_crtc);
26 }
27
~Crtc()28 Crtc::~Crtc()
29 {
30 drmModeFreeCrtc(m_priv->drm_crtc);
31 delete m_priv;
32 }
33
refresh()34 void Crtc::refresh()
35 {
36 drmModeFreeCrtc(m_priv->drm_crtc);
37
38 m_priv->drm_crtc = drmModeGetCrtc(this->card().fd(), this->id());
39 assert(m_priv->drm_crtc);
40 }
41
setup()42 void Crtc::setup()
43 {
44 for (Plane* plane : card().get_planes()) {
45 if (plane->supports_crtc(this))
46 m_possible_planes.push_back(plane);
47 }
48 }
49
restore_mode(Connector * conn)50 void Crtc::restore_mode(Connector* conn)
51 {
52 auto c = m_priv->drm_crtc;
53
54 uint32_t conns[] = { conn->id() };
55
56 drmModeSetCrtc(card().fd(), id(), c->buffer_id,
57 c->x, c->y,
58 conns, 1, &c->mode);
59 }
60
set_mode(Connector * conn,const Videomode & mode)61 int Crtc::set_mode(Connector* conn, const Videomode& mode)
62 {
63 AtomicReq req(card());
64
65 unique_ptr<Blob> blob = mode.to_blob(card());
66
67 req.add(conn, {
68 { "CRTC_ID", this->id() },
69 });
70
71 req.add(this, {
72 { "ACTIVE", 1 },
73 { "MODE_ID", blob->id() },
74 });
75
76 int r = req.commit_sync(true);
77
78 refresh();
79
80 return r;
81 }
82
set_mode(Connector * conn,Framebuffer & fb,const Videomode & mode)83 int Crtc::set_mode(Connector* conn, Framebuffer& fb, const Videomode& mode)
84 {
85 uint32_t conns[] = { conn->id() };
86 drmModeModeInfo drmmode = video_mode_to_drm_mode(mode);
87
88 return drmModeSetCrtc(card().fd(), id(), fb.id(),
89 0, 0,
90 conns, 1, &drmmode);
91 }
92
disable_mode()93 int Crtc::disable_mode()
94 {
95 return drmModeSetCrtc(card().fd(), id(), 0, 0, 0, 0, 0, 0);
96 }
97
conv(float x)98 static inline uint32_t conv(float x)
99 {
100 // XXX fix the conversion for fractional part
101 return ((uint32_t)x) << 16;
102 }
103
set_plane(Plane * plane,Framebuffer & fb,int32_t dst_x,int32_t dst_y,uint32_t dst_w,uint32_t dst_h,float src_x,float src_y,float src_w,float src_h)104 int Crtc::set_plane(Plane* plane, Framebuffer& fb,
105 int32_t dst_x, int32_t dst_y, uint32_t dst_w, uint32_t dst_h,
106 float src_x, float src_y, float src_w, float src_h)
107 {
108 return drmModeSetPlane(card().fd(), plane->id(), id(), fb.id(), 0,
109 dst_x, dst_y, dst_w, dst_h,
110 conv(src_x), conv(src_y), conv(src_w), conv(src_h));
111 }
112
disable_plane(Plane * plane)113 int Crtc::disable_plane(Plane* plane)
114 {
115 return drmModeSetPlane(card().fd(), plane->id(), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
116 }
117
get_primary_plane()118 Plane* Crtc::get_primary_plane()
119 {
120 Plane *primary = nullptr;
121
122 for (Plane* p : get_possible_planes()) {
123 if (p->plane_type() != PlaneType::Primary)
124 continue;
125
126 if (p->crtc_id() == id())
127 return p;
128
129 primary = p;
130 }
131
132 if (primary)
133 return primary;
134
135 throw invalid_argument(string("No primary plane for crtc ") + to_string(id()));
136 }
137
page_flip(Framebuffer & fb,void * data)138 int Crtc::page_flip(Framebuffer& fb, void *data)
139 {
140 return drmModePageFlip(card().fd(), id(), fb.id(), DRM_MODE_PAGE_FLIP_EVENT, data);
141 }
142
buffer_id() const143 uint32_t Crtc::buffer_id() const
144 {
145 return m_priv->drm_crtc->buffer_id;
146 }
147
x() const148 uint32_t Crtc::x() const
149 {
150 return m_priv->drm_crtc->x;
151 }
152
y() const153 uint32_t Crtc::y() const
154 {
155 return m_priv->drm_crtc->y;
156 }
157
width() const158 uint32_t Crtc::width() const
159 {
160 return m_priv->drm_crtc->width;
161 }
162
height() const163 uint32_t Crtc::height() const
164 {
165 return m_priv->drm_crtc->height;
166 }
167
mode_valid() const168 int Crtc::mode_valid() const
169 {
170 return m_priv->drm_crtc->mode_valid;
171 }
172
mode() const173 Videomode Crtc::mode() const
174 {
175 return drm_mode_to_video_mode(m_priv->drm_crtc->mode);
176 }
177
gamma_size() const178 int Crtc::gamma_size() const
179 {
180 return m_priv->drm_crtc->gamma_size;
181 }
182
183 }
184