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 void Crtc::print_short() const
54 {
55 auto c = m_priv->drm_crtc;
57 printf("Crtc %d, %d,%d %dx%d\n", id(),
58 c->x, c->y, c->width, c->height);
59 }
61 int Crtc::set_mode(Connector* conn, Framebuffer& fb, const Videomode& mode)
62 {
63 uint32_t conns[] = { conn->id() };
64 drmModeModeInfo drmmode = video_mode_to_drm_mode(mode);
66 return drmModeSetCrtc(card().fd(), id(), fb.id(),
67 0, 0,
68 conns, 1, &drmmode);
69 }
71 static inline uint32_t conv(float x)
72 {
73 // XXX fix the conversion for fractional part
74 return ((uint32_t)x) << 16;
75 }
77 int Crtc::set_plane(Plane* plane, Framebuffer& fb,
78 int32_t dst_x, int32_t dst_y, uint32_t dst_w, uint32_t dst_h,
79 float src_x, float src_y, float src_w, float src_h)
80 {
81 return drmModeSetPlane(card().fd(), plane->id(), id(), fb.id(), 0,
82 dst_x, dst_y, dst_w, dst_h,
83 conv(src_x), conv(src_y), conv(src_w), conv(src_h));
84 }
86 int Crtc::page_flip(Framebuffer& fb, void *data)
87 {
88 return drmModePageFlip(card().fd(), id(), fb.id(), DRM_MODE_PAGE_FLIP_EVENT, data);
89 }
91 uint32_t Crtc::buffer_id() const
92 {
93 return m_priv->drm_crtc->buffer_id;
94 }
96 uint32_t Crtc::x() const
97 {
98 return m_priv->drm_crtc->x;
99 }
101 uint32_t Crtc::y() const
102 {
103 return m_priv->drm_crtc->y;
104 }
106 uint32_t Crtc::width() const
107 {
108 return m_priv->drm_crtc->width;
109 }
111 uint32_t Crtc::height() const
112 {
113 return m_priv->drm_crtc->height;
114 }
116 int Crtc::mode_valid() const
117 {
118 return m_priv->drm_crtc->mode_valid;
119 }
121 Videomode Crtc::mode() const
122 {
123 return drm_mode_to_video_mode(m_priv->drm_crtc->mode);
124 }
126 int Crtc::gamma_size() const
127 {
128 return m_priv->drm_crtc->gamma_size;
129 }
131 }