summaryrefslogtreecommitdiff
path: root/kms++/src/crtc.cpp
blob: bad7d315aa854ce199e9eadb0825823b45fc78ac (plain)
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
#include <stdio.h>
#include <iostream>
#include <unistd.h>
#include <fcntl.h>
#include <cassert>

#include <kms++/kms++.h>
#include "helpers.h"

using namespace std;

namespace kms
{

struct CrtcPriv
{
	drmModeCrtcPtr drm_crtc;
};

Crtc::Crtc(Card &card, uint32_t id, uint32_t idx)
	:DrmPropObject(card, id, DRM_MODE_OBJECT_CRTC, idx)
{
	m_priv = new CrtcPriv();
	m_priv->drm_crtc = drmModeGetCrtc(this->card().fd(), this->id());
	assert(m_priv->drm_crtc);
}

Crtc::~Crtc()
{
	drmModeFreeCrtc(m_priv->drm_crtc);
	delete m_priv;
}

void Crtc::setup()
{
	for (Plane* plane : card().get_planes()) {
		if (plane->supports_crtc(this))
			m_possible_planes.push_back(plane);
	}
}

void Crtc::restore_mode(Connector* conn)
{
	auto c = m_priv->drm_crtc;

	uint32_t conns[] = { conn->id() };

	drmModeSetCrtc(card().fd(), id(), c->buffer_id,
		       c->x, c->y,
		       conns, 1, &c->mode);
}

int Crtc::set_mode(Connector* conn, Framebuffer& fb, const Videomode& mode)
{
	uint32_t conns[] = { conn->id() };
	drmModeModeInfo drmmode = video_mode_to_drm_mode(mode);

	return drmModeSetCrtc(card().fd(), id(), fb.id(),
			      0, 0,
			      conns, 1, &drmmode);
}

static inline uint32_t conv(float x)
{
	// XXX fix the conversion for fractional part
	return ((uint32_t)x) << 16;
}

int Crtc::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)
{
	return drmModeSetPlane(card().fd(), plane->id(), id(), fb.id(), 0,
			       dst_x, dst_y, dst_w, dst_h,
			       conv(src_x), conv(src_y), conv(src_w), conv(src_h));
}

int Crtc::disable_plane(Plane* plane)
{
	return drmModeSetPlane(card().fd(), plane->id(), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
}

Plane* Crtc::get_primary_plane()
{
	for (Plane* p : get_possible_planes()) {
		if (p->plane_type() != PlaneType::Primary)
			continue;

		return p;
	}

	throw invalid_argument(string("No primary plane for crtc ") + to_string(id()));
}

int Crtc::page_flip(Framebuffer& fb, void *data)
{
	return drmModePageFlip(card().fd(), id(), fb.id(), DRM_MODE_PAGE_FLIP_EVENT, data);
}

uint32_t Crtc::buffer_id() const
{
	return m_priv->drm_crtc->buffer_id;
}

uint32_t Crtc::x() const
{
	return m_priv->drm_crtc->x;
}

uint32_t Crtc::y() const
{
	return m_priv->drm_crtc->y;
}

uint32_t Crtc::width() const
{
	return m_priv->drm_crtc->width;
}

uint32_t Crtc::height() const
{
	return m_priv->drm_crtc->height;
}

int Crtc::mode_valid() const
{
	return m_priv->drm_crtc->mode_valid;
}

Videomode Crtc::mode() const
{
	return drm_mode_to_video_mode(m_priv->drm_crtc->mode);
}

int Crtc::gamma_size() const
{
	return m_priv->drm_crtc->gamma_size;
}

}