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path: root/utils/kmsprint.cpp
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#include <algorithm>
#include <cinttypes>
#include <cstdio>
#include <iostream>
#include <string>
#include <unistd.h>

#include <kms++/kms++.h>
#include <kms++util/kms++util.h>

using namespace std;
using namespace kms;

static struct {
	bool print_props;
	bool print_modes;
	bool print_list;
	bool x_modeline;
} s_opts;

static string format_mode(const Videomode& m, unsigned idx)
{
	string str;

	str = sformat("  %2u ", idx);

	if (s_opts.x_modeline) {
		str += sformat("%12s %6u %4u %4u %4u %4u %4u %4u %4u %4u  %2u %#x %#x",
			       m.name.c_str(),
			       m.clock,
			       m.hdisplay, m.hsync_start, m.hsync_end, m.htotal,
			       m.vdisplay, m.vsync_start, m.vsync_end, m.vtotal,
			       m.vrefresh,
			       m.flags,
			       m.type);
	} else {
		string h = sformat("%u/%u/%u/%u", m.hdisplay, m.hfp(), m.hsw(), m.hbp());
		string v = sformat("%u/%u/%u/%u", m.vdisplay, m.vfp(), m.vsw(), m.vbp());

		str += sformat("%-12s %7.3f %-16s %-16s %2u (%.2f) %#10x %#6x",
			       m.name.c_str(),
			       m.clock / 1000.0,
			       h.c_str(), v.c_str(),
			       m.vrefresh, m.calculated_vrefresh(),
			       m.flags,
			       m.type);
	}

	return str;
}

static string format_mode_short(const Videomode& m)
{
	string h = sformat("%u/%u/%u/%u", m.hdisplay, m.hfp(), m.hsw(), m.hbp());
	string v = sformat("%u/%u/%u/%u", m.vdisplay, m.vfp(), m.vsw(), m.vbp());

	return sformat("%s %.3f %s %s %u (%.2f)",
		       m.name.c_str(),
		       m.clock / 1000.0,
		       h.c_str(), v.c_str(),
		       m.vrefresh, m.calculated_vrefresh());
}

static string format_connector(Connector& c)
{
	string str;

	str = sformat("Connector %u (%u) %s",
		      c.idx(), c.id(), c.fullname().c_str());

	if (c.connected())
		str += " (connected)";

	return str;
}

static string format_encoder(Encoder& e)
{
	return sformat("Encoder %u (%u) %s",
		       e.idx(), e.id(), e.get_encoder_type().c_str());
}

static string format_crtc(Crtc& c)
{
	string str;

	str = sformat("Crtc %u (%u)", c.idx(), c.id());

	if (c.mode_valid())
		str += " " + format_mode_short(c.mode());

	return str;
}

static string format_plane(Plane& p)
{
	string str;

	str = sformat("Plane %u (%u)", p.idx(), p.id());

	if (p.fb_id())
		str += sformat(" fb-id: %u", p.fb_id());

	if (p.card().has_atomic()) {
		str += sformat(" %u,%u %ux%u -> %u,%u %ux%u",
			       (uint32_t)p.get_prop_value("SRC_X") >> 16,
			       (uint32_t)p.get_prop_value("SRC_Y") >> 16,
			       (uint32_t)p.get_prop_value("SRC_W") >> 16,
			       (uint32_t)p.get_prop_value("SRC_H") >> 16,
			       (uint32_t)p.get_prop_value("CRTC_X"),
			       (uint32_t)p.get_prop_value("CRTC_Y"),
			       (uint32_t)p.get_prop_value("CRTC_W"),
			       (uint32_t)p.get_prop_value("CRTC_H"));
	}

	string fmts = join<PixelFormat>(p.get_formats(), " ", [](PixelFormat fmt) { return PixelFormatToFourCC(fmt); });

	str += sformat(" (%s)", fmts.c_str());

	return str;
}

static string format_fb(Framebuffer& fb)
{
	return sformat("FB %u %ux%u",
		       fb.id(), fb.width(), fb.height());
}

static string format_property(const Property* prop, uint64_t val)
{
	string ret = sformat("%s = ", prop->name().c_str());

	switch (prop->type()) {
	case PropertyType::Bitmask:
	{
		vector<string> v, vall;

		for (auto kvp : prop->get_enums()) {
			if (val & (1 << kvp.first))
				v.push_back(kvp.second);
			vall.push_back(sformat("%s=0x%x", kvp.second.c_str(), 1 << kvp.first));
		}

		ret += sformat("0x%llx (%s) [%s]", val, join(v, "|").c_str(), join(vall, "|").c_str());

		break;
	}

	case PropertyType::Blob:
	{
		uint32_t blob_id = (uint32_t)val;

		if (blob_id) {
			Blob blob(prop->card(), blob_id);
			auto data = blob.data();

			ret += sformat("blob-id %u len %zu", blob_id, data.size());
		} else {
			ret += sformat("blob-id %u", blob_id);
		}

		break;
	}

	case PropertyType::Enum:
	{
		string cur;
		vector<string> vall;

		for (auto kvp : prop->get_enums()) {
			if (val == kvp.first)
				cur = kvp.second;
			vall.push_back(sformat("%s=%llu", kvp.second.c_str(), kvp.first));
		}

		ret += sformat("%llu (%s) [%s]", val, cur.c_str(), join(vall, "|").c_str());

		break;
	}

	case PropertyType::Object:
	{
		ret += sformat("object id %u", (uint32_t)val);
		break;
	}

	case PropertyType::Range:
	{
		auto values = prop->get_values();

		ret += sformat("%" PRIu64 " [%" PRIu64 " - %" PRIu64 "]",
			       val, values[0], values[1]);

		break;
	}

	case PropertyType::SignedRange:
	{
		auto values = prop->get_values();

		ret += sformat("%" PRIi64 " [%" PRIi64 " - %" PRIi64 "]",
			       (int64_t)val, (int64_t)values[0], (int64_t)values[1]);

		break;
	}

	}

	if (prop->is_pending())
		ret += " (pending)";
	if (prop->is_immutable())
		ret += " (immutable)";

	return ret;
}

static vector<string> format_props(DrmPropObject* o)
{
	vector<string> lines;

	auto pmap = o->get_prop_map();
	for (auto pp : pmap) {
		const Property* p = o->card().get_prop(pp.first);
		lines.push_back(format_property(p, pp.second));
	}

	return lines;
}

static string format_ob(DrmObject* ob)
{
	if (auto o = dynamic_cast<Connector*>(ob))
		return format_connector(*o);
	else if (auto o = dynamic_cast<Encoder*>(ob))
		return format_encoder(*o);
	else if (auto o = dynamic_cast<Crtc*>(ob))
		return format_crtc(*o);
	else if (auto o = dynamic_cast<Plane*>(ob))
		return format_plane(*o);
	else if (auto o = dynamic_cast<Framebuffer*>(ob))
		return format_fb(*o);
	else
		EXIT("Unkown DRM Object type\n");
}

template<class T>
vector<T> filter(const vector<T>& sequence, function<bool(T)> predicate)
{
	vector<T> result;

	for(auto it = sequence.begin(); it != sequence.end(); ++it)
		if(predicate(*it))
			result.push_back(*it);

	return result;
}

struct Entry
{
	string title;
	vector<string> lines;
	vector<Entry> children;
};

static Entry& add_entry(vector<Entry>& entries)
{
	entries.emplace_back();
	return entries.back();
}
/*
static bool on_tty()
{
	return isatty(STDOUT_FILENO) > 0;
}
*/
enum class TreeGlyphMode {
	None,
	ASCII,
	UTF8,
};

static TreeGlyphMode s_glyph_mode = TreeGlyphMode::None;

enum class TreeGlyph {
	Vertical,
	Branch,
	Right,
	Space,
};

static const map<TreeGlyph, string> glyphs_utf8 = {
	{ TreeGlyph::Vertical, "│ " },
	{ TreeGlyph::Branch, "├─" },
	{ TreeGlyph::Right, "└─" },
	{ TreeGlyph::Space, "  " },

};

static const map<TreeGlyph, string> glyphs_ascii = {
	{ TreeGlyph::Vertical, "| " },
	{ TreeGlyph::Branch, "|-" },
	{ TreeGlyph::Right, "`-" },
	{ TreeGlyph::Space, "  " },

};

const char* get_glyph(TreeGlyph glyph)
{
	if (s_glyph_mode == TreeGlyphMode::None)
		return "  ";

	const map<TreeGlyph, string>& glyphs = s_glyph_mode == TreeGlyphMode::UTF8 ? glyphs_utf8 : glyphs_ascii;

	return glyphs.at(glyph).c_str();
}

static void print_entry(const Entry& e, const string& prefix, bool is_child, bool is_last)
{
	string prefix1;
	string prefix2;

	if (is_child) {
		prefix1 = prefix + (is_last ? get_glyph(TreeGlyph::Right) : get_glyph(TreeGlyph::Branch));
		prefix2 = prefix + (is_last ? get_glyph(TreeGlyph::Space) : get_glyph(TreeGlyph::Vertical));
	}

	printf("%s%s\n", prefix1.c_str(), e.title.c_str());

	bool has_children = e.children.size() > 0;

	string data_prefix = prefix2 + (has_children ? get_glyph(TreeGlyph::Vertical) : get_glyph(TreeGlyph::Space));

	for (const string& str : e.lines) {
		string p = data_prefix + get_glyph(TreeGlyph::Space);
		printf("%s%s\n", p.c_str(), str.c_str());
	}

	for (const Entry& child : e.children) {
		bool is_last = &child == &e.children.back();

		print_entry(child, prefix2, true, is_last);
	}
}

static void print_entries(const vector<Entry>& entries, const string& prefix)
{
	for (const Entry& e: entries) {
		print_entry(e, "", false, false);
	}
}

template<class T>
static void append(vector<DrmObject*>& dst, const vector<T*>& src)
{
	dst.insert(dst.end(), src.begin(), src.end());
}


static void print_as_list(Card& card)
{
	vector<DrmPropObject*> obs;
	vector<Framebuffer*> fbs;

	for (Connector* conn : card.get_connectors()) {
		obs.push_back(conn);
	}

	for (Encoder* enc : card.get_encoders()) {
		obs.push_back(enc);
	}

	for (Crtc* crtc : card.get_crtcs()) {
		obs.push_back(crtc);
		if (crtc->buffer_id() && !card.has_has_universal_planes()) {
			Framebuffer* fb = new Framebuffer(card, crtc->buffer_id());
			fbs.push_back(fb);
		}
	}

	for (Plane* plane : card.get_planes()) {
		obs.push_back(plane);
		if (plane->fb_id()) {
			Framebuffer* fb = new Framebuffer(card, plane->fb_id());
			fbs.push_back(fb);
		}
	}

	for (DrmPropObject* ob: obs) {
		printf("%s\n", format_ob(ob).c_str());

		if (s_opts.print_props) {
			for (string str : format_props(ob))
				printf("    %s\n", str.c_str());
		}
	}

	for (Framebuffer* fb: fbs) {
		printf("%s\n", format_ob(fb).c_str());
	}
}

static void print_as_tree(Card& card)
{
	vector<Entry> entries;

	for (Connector* conn : card.get_connectors()) {
		if (!conn->connected())
			continue;

		Entry& e1 = add_entry(entries);
		e1.title = format_ob(conn);
		if (s_opts.print_props)
			e1.lines = format_props(conn);

		for (Encoder* enc : conn->get_encoders()) {

			Entry& e2 = add_entry(e1.children);
			e2.title = format_ob(enc);
			if (s_opts.print_props)
				e2.lines = format_props(enc);

			if (Crtc* crtc = enc->get_crtc()) {
				Entry& e3 = add_entry(e2.children);
				e3.title = format_ob(crtc);
				if (s_opts.print_props)
					e3.lines = format_props(crtc);

				if (crtc->buffer_id() && !card.has_has_universal_planes()) {
					Framebuffer fb(card, crtc->buffer_id());
					Entry& e5 = add_entry(e3.children);

					e5.title = format_ob(&fb);
				}

				for (Plane* plane : card.get_planes()) {
					if (plane->crtc_id() != crtc->id())
						continue;

					Entry& e4 = add_entry(e3.children);
					e4.title = format_ob(plane);
					if (s_opts.print_props)
						e4.lines = format_props(plane);

					uint32_t fb_id = plane->fb_id();
					if (fb_id) {
						Framebuffer fb(card, fb_id);

						Entry& e5 = add_entry(e4.children);

						e5.title = format_ob(&fb);
					}
				}
			}
		}
	}

	print_entries(entries, "");
}

static void print_modes(Card& card)
{
	for (Connector* conn : card.get_connectors()) {
		if (!conn->connected())
			continue;

		printf("%s\n", format_ob(conn).c_str());

		auto modes = conn->get_modes();
		for (unsigned i = 0; i < modes.size(); ++i)
			printf("%s\n", format_mode(modes[i], i).c_str());
	}
}

static const char* usage_str =
		"Usage: kmsprint [OPTIONS]\n\n"
		"Options:\n"
		"  -l, --list        Print list instead of tree\n"
		"  -m, --modes       Print modes\n"
		"      --xmode       Print modes using X modeline\n"
		"  -p, --props       Print properties\n"
		;

static void usage()
{
	puts(usage_str);
}

int main(int argc, char **argv)
{
	string dev_path = "/dev/dri/card0";

	OptionSet optionset = {
		Option("|device=", [&dev_path](string s)
		{
			dev_path = s;
		}),
		Option("l|list", []()
		{
			s_opts.print_list = true;
		}),
		Option("m|modes", []()
		{
			s_opts.print_modes = true;
		}),
		Option("p|props", []()
		{
			s_opts.print_props = true;
		}),
		Option("|xmode", []() {
			s_opts.x_modeline = true;
		}),
		Option("h|help", []()
		{
			usage();
			exit(-1);
		}),
	};

	optionset.parse(argc, argv);

	if (optionset.params().size() > 0) {
		usage();
		exit(-1);
	}

	Card card(dev_path);

	if (s_opts.print_modes) {
		print_modes(card);
		return 0;
	}

	if (s_opts.print_list)
		print_as_list(card);
	else
		print_as_tree(card);
}