summaryrefslogtreecommitdiff
path: root/libkms++/encoder.cpp
blob: ba6b0765be53171a13bc6f2b40f14c37b10ee178 (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
#include <stdio.h>
#include <iostream>
#include <unistd.h>
#include <fcntl.h>
#include <cassert>
#include <xf86drm.h>
#include <xf86drmMode.h>

#include "kms++.h"

using namespace std;

namespace kms
{

struct EncoderPriv
{
	drmModeEncoderPtr drm_encoder;
};

static const map<int, string> encoder_types = {
#define DEF_ENC(c) { DRM_MODE_ENCODER_##c, #c }
	DEF_ENC(NONE),
	DEF_ENC(DAC),
	DEF_ENC(TMDS),
	DEF_ENC(LVDS),
	DEF_ENC(TVDAC),
	DEF_ENC(VIRTUAL),
	DEF_ENC(DSI),
#undef DEF_ENC
};

Encoder::Encoder(Card &card, uint32_t id)
	:DrmPropObject(card, id, DRM_MODE_OBJECT_ENCODER)
{
	m_priv = new EncoderPriv();
	m_priv->drm_encoder = drmModeGetEncoder(this->card().fd(), this->id());
	assert(m_priv->drm_encoder);
}

Encoder::~Encoder()
{
	drmModeFreeEncoder(m_priv->drm_encoder);
	delete m_priv;
}

Crtc* Encoder::get_crtc() const
{
	if (m_priv->drm_encoder->crtc_id)
		return card().get_crtc(m_priv->drm_encoder->crtc_id);
	else
		return 0;
}

vector<Crtc*> Encoder::get_possible_crtcs() const
{
	unsigned bits = m_priv->drm_encoder->possible_crtcs;
	vector<Crtc*> crtcs;

	for (int idx = 0; bits; idx++, bits >>= 1) {
		if ((bits & 1) == 0)
			continue;

		auto crtc = card().get_crtc_by_index(idx);
		crtcs.push_back(crtc);
	}

	return crtcs;
}

const string& Encoder::get_encoder_type() const
{
	return encoder_types.at(m_priv->drm_encoder->encoder_type);
}

}