1 #include <stdio.h>
2 #include <iostream>
3 #include <unistd.h>
4 #include <fcntl.h>
5 #include <cassert>
7 #include <kms++/kms++.h>
8 #include "helpers.h"
10 using namespace std;
12 namespace kms
13 {
15 struct CrtcPriv
16 {
17 drmModeCrtcPtr drm_crtc;
18 };
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 }
28 Crtc::~Crtc()
29 {
30 drmModeFreeCrtc(m_priv->drm_crtc);
31 delete m_priv;
32 }
34 void Crtc::setup()
35 {
36 for (Plane* plane : card().get_planes()) {
37 if (plane->supports_crtc(this))
38 m_possible_planes.push_back(plane);
39 }
40 }
42 void Crtc::restore_mode(Connector* conn)
43 {
44 auto c = m_priv->drm_crtc;
46 uint32_t conns[] = { conn->id() };
48 drmModeSetCrtc(card().fd(), id(), c->buffer_id,
49 c->x, c->y,
50 conns, 1, &c->mode);
51 }
53 int Crtc::set_mode(Connector* conn, Framebuffer& fb, const Videomode& mode)
54 {
55 uint32_t conns[] = { conn->id() };
56 drmModeModeInfo drmmode = video_mode_to_drm_mode(mode);
58 return drmModeSetCrtc(card().fd(), id(), fb.id(),
59 0, 0,
60 conns, 1, &drmmode);
61 }
63 static inline uint32_t conv(float x)
64 {
65 // XXX fix the conversion for fractional part
66 return ((uint32_t)x) << 16;
67 }
69 int Crtc::set_plane(Plane* plane, Framebuffer& fb,
70 int32_t dst_x, int32_t dst_y, uint32_t dst_w, uint32_t dst_h,
71 float src_x, float src_y, float src_w, float src_h)
72 {
73 return drmModeSetPlane(card().fd(), plane->id(), id(), fb.id(), 0,
74 dst_x, dst_y, dst_w, dst_h,
75 conv(src_x), conv(src_y), conv(src_w), conv(src_h));
76 }
78 int Crtc::disable_plane(Plane* plane)
79 {
80 return drmModeSetPlane(card().fd(), plane->id(), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
81 }
83 Plane* Crtc::get_primary_plane()
84 {
85 for (Plane* p : get_possible_planes()) {
86 if (p->plane_type() != PlaneType::Primary)
87 continue;
89 return p;
90 }
92 throw invalid_argument(string("No primary plane for crtc ") + to_string(id()));
93 }
95 int Crtc::page_flip(Framebuffer& fb, void *data)
96 {
97 return drmModePageFlip(card().fd(), id(), fb.id(), DRM_MODE_PAGE_FLIP_EVENT, data);
98 }
100 uint32_t Crtc::buffer_id() const
101 {
102 return m_priv->drm_crtc->buffer_id;
103 }
105 uint32_t Crtc::x() const
106 {
107 return m_priv->drm_crtc->x;
108 }
110 uint32_t Crtc::y() const
111 {
112 return m_priv->drm_crtc->y;
113 }
115 uint32_t Crtc::width() const
116 {
117 return m_priv->drm_crtc->width;
118 }
120 uint32_t Crtc::height() const
121 {
122 return m_priv->drm_crtc->height;
123 }
125 int Crtc::mode_valid() const
126 {
127 return m_priv->drm_crtc->mode_valid;
128 }
130 Videomode Crtc::mode() const
131 {
132 return drm_mode_to_video_mode(m_priv->drm_crtc->mode);
133 }
135 int Crtc::gamma_size() const
136 {
137 return m_priv->drm_crtc->gamma_size;
138 }
140 }