1 #include <stdio.h>
2 #include <iostream>
3 #include <unistd.h>
4 #include <fcntl.h>
5 #include <cassert>
7 #include "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 :DrmObject(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 int Crtc::page_flip(Framebuffer& fb, void *data)
84 {
85 return drmModePageFlip(card().fd(), id(), fb.id(), DRM_MODE_PAGE_FLIP_EVENT, data);
86 }
88 uint32_t Crtc::buffer_id() const
89 {
90 return m_priv->drm_crtc->buffer_id;
91 }
93 uint32_t Crtc::x() const
94 {
95 return m_priv->drm_crtc->x;
96 }
98 uint32_t Crtc::y() const
99 {
100 return m_priv->drm_crtc->y;
101 }
103 uint32_t Crtc::width() const
104 {
105 return m_priv->drm_crtc->width;
106 }
108 uint32_t Crtc::height() const
109 {
110 return m_priv->drm_crtc->height;
111 }
113 int Crtc::mode_valid() const
114 {
115 return m_priv->drm_crtc->mode_valid;
116 }
118 Videomode Crtc::mode() const
119 {
120 return drm_mode_to_video_mode(m_priv->drm_crtc->mode);
121 }
123 int Crtc::gamma_size() const
124 {
125 return m_priv->drm_crtc->gamma_size;
126 }
128 }