testpat: big rewrite

1 files changed, 526 insertions, 43 deletions

diff --git a/tests/testpat.cpp b/tests/testpat.cpp
index 85c67a3..c51d3ec 100644
--- a/tests/testpat.cpp
+++ b/tests/testpat.cpp
@@ -1,82 +1,565 @@
 #include <cstdio>
 #include <algorithm>
+#include <regex>
+#include <set>
 
 #include "kms++.h"
 
 #include "test.h"
-#include "cmdoptions.h"
+#include "opts.h"
 
 using namespace std;
 using namespace kms;
 
-static map<string, CmdOption> options = {
-	{ "m", HAS_PARAM("Set display mode, for example 1920x1080") },
+struct PlaneInfo
+{
+	Plane* plane;
+
+	unsigned x;
+	unsigned y;
+	unsigned w;
+	unsigned h;
+
+	DumbFramebuffer* fb;
 };
 
-int main(int argc, char **argv)
+struct OutputInfo
 {
-	Card card;
-	CmdOptions opts(argc, argv, options);
+	Connector* connector;
 
-	if (card.master() == false)
-		printf("Not DRM master, modeset may fail\n");
+	Crtc* crtc;
+	Videomode mode;
+	bool user_set_crtc;
+	DumbFramebuffer* fb;
 
-	auto pipes = card.get_connected_pipelines();
+	vector<PlaneInfo> planes;
+};
 
-	vector<Framebuffer*> fbs;
+static set<Crtc*> s_used_crtcs;
+static set<Plane*> s_used_planes;
 
-	for (auto pipe : pipes)
-	{
-		auto conn = pipe.connector;
-		auto crtc = pipe.crtc;
+__attribute__ ((unused))
+static void print_regex_match(smatch sm)
+{
+	for (unsigned i = 0; i < sm.size(); ++i) {
+		string str = sm[i].str();
+		printf("%u: %s\n", i, str.c_str());
+	}
+}
 
-		// RG16 XR24 UYVY YUYV NV12
+static void get_default_connector(Card& card, OutputInfo& output)
+{
+	output.connector = card.get_first_connected_connector();
+	output.mode = output.connector->get_default_mode();
+}
 
-		auto mode = conn->get_default_mode();
+static void parse_connector(Card& card, const string& str, OutputInfo& output)
+{
+	Connector* conn = nullptr;
 
-		if (opts.is_set("m"))
-			mode = conn->get_mode(opts.opt_param("m"));
+	auto connectors = card.get_connectors();
 
-		auto fb = new DumbFramebuffer(card, mode.hdisplay, mode.vdisplay, PixelFormat::XRGB8888);
-		draw_test_pattern(*fb);
-		fbs.push_back(fb);
+	if (str[0] == '@') {
+		char* endptr;
+		unsigned idx = strtoul(str.c_str() + 1, &endptr, 10);
+		if (*endptr == 0) {
+			if (idx >= connectors.size())
+				EXIT("Bad connector number '%u'", idx);
 
-		printf("conn %u, crtc %u, fb %u\n", conn->id(), crtc->id(), fb->id());
+			conn = connectors[idx];
+		}
+	} else {
+		char* endptr;
+		unsigned id = strtoul(str.c_str(), &endptr, 10);
+		if (*endptr == 0) {
+			Connector* c = card.get_connector(id);
+			if (!c)
+				EXIT("Bad connector id '%u'", id);
 
-		int r = crtc->set_mode(conn, *fb, mode);
-		ASSERT(r == 0);
+			conn = c;
+		}
 	}
 
-	for (auto pipe: pipes)
-	{
-		auto crtc = pipe.crtc;
+	if (!conn) {
+		auto iter = find_if(connectors.begin(), connectors.end(), [&str](Connector *c) { return c->fullname() == str; });
+		if (iter != connectors.end())
+			conn = *iter;
+	}
+
+	if (!conn)
+		EXIT("No connector '%s'", str.c_str());
+
+	if (!conn->connected())
+		EXIT("Connector '%s' not connected", conn->fullname().c_str());
 
-		Plane* plane = 0;
+	output.connector = conn;
+	output.mode = output.connector->get_default_mode();
+}
+
+static void get_default_crtc(Card& card, OutputInfo& output)
+{
+	Crtc* crtc = output.connector->get_current_crtc();
+
+	if (crtc && s_used_crtcs.find(crtc) == s_used_crtcs.end()) {
+		s_used_crtcs.insert(crtc);
+		output.crtc = crtc;
+		return;
+	}
+
+	for (const auto& possible : output.connector->get_possible_crtcs()) {
+		if (s_used_crtcs.find(possible) == s_used_crtcs.end()) {
+			s_used_crtcs.insert(possible);
+			output.crtc = possible;
+			return;
+		}
+	}
+
+	EXIT("Could not find available crtc");
+}
+
+static void parse_crtc(Card& card, const string& crtc_str, OutputInfo& output)
+{
+	// @12:1920x1200-60
+	const regex mode_re("(?:(@?)(\\d+):)?(?:(\\d+)x(\\d+))(?:-(\\d+))?");
+
+	smatch sm;
+	if (!regex_match(crtc_str, sm, mode_re))
+		EXIT("Failed to parse crtc option '%s'", crtc_str.c_str());
+
+	if (sm[2].matched) {
+		bool use_idx = sm[1].length() == 1;
+		unsigned num = stoul(sm[2].str());
+
+		if (use_idx) {
+			auto crtcs = card.get_crtcs();
+
+			if (num >= crtcs.size())
+				EXIT("Bad crtc number '%u'", num);
+
+			output.crtc = crtcs[num];
+		} else {
+			Crtc* c = card.get_crtc(num);
+			if (!c)
+				EXIT("Bad crtc id '%u'", num);
+
+			output.crtc = c;
+		}
+	} else {
+		output.crtc = output.connector->get_current_crtc();
+	}
+
+	unsigned w = stoul(sm[3]);
+	unsigned h = stoul(sm[4]);
+	unsigned refresh = 0;
+	if (sm[5].matched)
+		refresh = stoul(sm[5]);
+
+	output.mode = output.connector->get_mode(w, h, refresh);
+}
+
+static void parse_plane(Card& card, const string& plane_str, const OutputInfo& output, PlaneInfo& pinfo)
+{
+	// 3:400,400-400x400
+	const regex plane_re("(?:(@?)(\\d+):)?(?:(\\d+),(\\d+)-)?(\\d+)x(\\d+)");
 
-		for (Plane* p : crtc->get_possible_planes()) {
-			if (p->plane_type() == PlaneType::Overlay) {
-				plane = p;
-				break;
+	smatch sm;
+	if (!regex_match(plane_str, sm, plane_re))
+		EXIT("Failed to parse plane option '%s'", plane_str.c_str());
+
+	if (sm[2].matched) {
+		bool use_idx = sm[1].length() == 1;
+		unsigned num = stoul(sm[2].str());
+
+		if (use_idx) {
+			auto planes = card.get_planes();
+
+			if (num >= planes.size())
+				EXIT("Bad plane number '%u'", num);
+
+			pinfo.plane = planes[num];
+		} else {
+			Plane* p = card.get_plane(num);
+			if (!p)
+				EXIT("Bad plane id '%u'", num);
+
+			pinfo.plane = p;
+		}
+	} else {
+		for (Plane* p : output.crtc->get_possible_planes()) {
+			if (s_used_planes.find(p) != s_used_planes.end())
+				continue;
+
+			if (p->plane_type() != PlaneType::Overlay)
+				continue;
+
+			pinfo.plane = p;
+		}
+
+		if (!pinfo.plane)
+			EXIT("Failed to find available plane");
+	}
+
+	s_used_planes.insert(pinfo.plane);
+
+	pinfo.w = stoul(sm[5]);
+	pinfo.h = stoul(sm[6]);
+
+	if (sm[3].matched)
+		pinfo.x = stoul(sm[3]);
+	else
+		pinfo.x = output.mode.hdisplay / 2 - pinfo.w / 2;
+
+	if (sm[4].matched)
+		pinfo.y = stoul(sm[4]);
+	else
+		pinfo.y = output.mode.vdisplay / 2 - pinfo.h / 2;
+}
+
+static DumbFramebuffer* get_default_fb(Card& card, unsigned width, unsigned height)
+{
+	auto fb = new DumbFramebuffer(card, width, height, PixelFormat::XRGB8888);
+	draw_test_pattern(*fb);
+	return fb;
+}
+
+static DumbFramebuffer* parse_fb(Card& card, const string& fb_str, unsigned def_w, unsigned def_h)
+{
+	unsigned w = def_w;
+	unsigned h = def_h;
+	PixelFormat format = PixelFormat::XRGB8888;
+
+	if (!fb_str.empty()) {
+		// XXX the regexp is not quite correct
+		// 400x400-NV12
+		const regex fb_re("(?:(\\d+)x(\\d+))?(?:-)?(\\w\\w\\w\\w)?");
+
+		smatch sm;
+		if (!regex_match(fb_str, sm, fb_re))
+			EXIT("Failed to parse fb option '%s'", fb_str.c_str());
+
+		if (sm[1].matched)
+			w = stoul(sm[1]);
+		if (sm[2].matched)
+			h = stoul(sm[2]);
+		if (sm[3].matched)
+			format = FourCCToPixelFormat(sm[3]);
+	}
+
+	auto fb = new DumbFramebuffer(card, w, h, format);
+	draw_test_pattern(*fb);
+	return fb;
+}
+
+static const char* usage_str =
+		"Usage: testpat [OPTION]...\n\n"
+		"Show a test pattern on a display or plane\n\n"
+		"Options:\n"
+		"      --device=DEVICE       DEVICE is the path to DRM card to open\n"
+		"  -c, --connector=CONN      CONN is <connector>\n"
+		"  -r, --crtc=CRTC           CRTC is [<crtc>:]<w>x<h>[@<Hz>]\n"
+		"  -p, --plane=PLANE         PLANE is [<plane>:][<x>,<y>-]<w>x<h>\n"
+		"  -f, --fb=FB               FB is [<w>x<h>][-][<4cc>]\n"
+		"\n"
+		"<connector>, <crtc> and <plane> can be given by id (<id>) or index (@<idx>).\n"
+		"<connector> can also be given by name.\n"
+		"\n"
+		"Options can be given multiple times to set up multiple displays or planes.\n"
+		"Options may apply to previous options, e.g. a plane will be set on a crtc set in\n"
+		"an earlier option.\n"
+		"If you omit parameters, testpat tries to guess what you mean\n"
+		"\n"
+		"Examples:\n"
+		"\n"
+		"Set eDP-1 mode to 1920x1080@60, show XR24 framebuffer on the crtc, and a 400x400 XB24 plane:\n"
+		"    testpat -c eDP-1 -r 1920x1080@60 -f XR24 -p 400x400 -f XB24\n\n"
+		"XR24 framebuffer on first connected connector in the default mode:\n"
+		"    testpat -f XR24\n\n"
+		"XR24 framebuffer on a 400x400 plane on the first connected connector in the default mode:\n"
+		"    testpat -p 400x400 -f XR24\n\n"
+		"Test pattern on the second connector with default mode:\n"
+		"    testpat -c @1\n"
+		;
+
+static void usage()
+{
+	puts(usage_str);
+}
+
+enum class ObjectType
+{
+	Connector,
+	Crtc,
+	Plane,
+	Framebuffer,
+};
+
+struct Arg
+{
+	ObjectType type;
+	string arg;
+};
+
+static string s_device_path = "/dev/dri/card0";
+
+static vector<Arg> parse_cmdline(int argc, char **argv)
+{
+	vector<Arg> args;
+
+	OptionSet optionset = {
+		Option("|device=",
+		[&](string s)
+		{
+			s_device_path = s;
+		}),
+		Option("c|connector=",
+		[&](string s)
+		{
+			args.push_back(Arg { ObjectType::Connector, s });
+		}),
+		Option("r|crtc=", [&](string s)
+		{
+			args.push_back(Arg { ObjectType::Crtc, s });
+		}),
+		Option("p|plane=", [&](string s)
+		{
+			args.push_back(Arg { ObjectType::Plane, s });
+		}),
+		Option("f|fb=", [&](string s)
+		{
+			args.push_back(Arg { ObjectType::Framebuffer, s });
+		}),
+		Option("h|help", [&]()
+		{
+			usage();
+			exit(-1);
+		}),
+	};
+
+	optionset.parse(argc, argv);
+
+	if (optionset.params().size() > 0) {
+		usage();
+		exit(-1);
+	}
+
+	return args;
+}
+
+static vector<OutputInfo> setups_to_outputs(Card& card, const vector<Arg>& output_args)
+{
+	vector<OutputInfo> outputs;
+
+	if (output_args.size() == 0) {
+		// no output args, show a pattern on all screens
+		for (auto& pipe : card.get_connected_pipelines()) {
+			OutputInfo output = { };
+			output.connector = pipe.connector;
+			output.crtc = pipe.crtc;
+			output.mode = output.connector->get_default_mode();
+
+			output.fb = get_default_fb(card, output.mode.hdisplay, output.mode.vdisplay);
+
+			outputs.push_back(output);
+		}
+
+		return outputs;
+	}
+
+	OutputInfo* current_output = 0;
+	PlaneInfo* current_plane = 0;
+
+	for (auto& arg : output_args) {
+		switch (arg.type) {
+		case ObjectType::Connector:
+		{
+			outputs.push_back(OutputInfo { });
+			current_output = &outputs.back();
+
+			parse_connector(card, arg.arg, *current_output);
+			current_plane = 0;
+
+			break;
+		}
+
+		case ObjectType::Crtc:
+		{
+			if (!current_output) {
+				outputs.push_back(OutputInfo { });
+				current_output = &outputs.back();
+			}
+
+			if (!current_output->connector)
+				get_default_connector(card, *current_output);
+
+			parse_crtc(card, arg.arg, *current_output);
+
+			current_output->user_set_crtc = true;
+
+			current_plane = 0;
+
+			break;
+		}
+
+		case ObjectType::Plane:
+		{
+			if (!current_output) {
+				outputs.push_back(OutputInfo { });
+				current_output = &outputs.back();
+			}
+
+			if (!current_output->connector)
+				get_default_connector(card, *current_output);
+
+			if (!current_output->crtc)
+				get_default_crtc(card, *current_output);
+
+			current_output->planes.push_back(PlaneInfo { });
+			current_plane = &current_output->planes.back();
+
+			parse_plane(card, arg.arg, *current_output, *current_plane);
+
+			break;
+		}
+
+		case ObjectType::Framebuffer:
+		{
+			if (!current_output) {
+				outputs.push_back(OutputInfo { });
+				current_output = &outputs.back();
+			}
+
+			if (!current_output->connector)
+				get_default_connector(card, *current_output);
+
+			if (!current_output->crtc)
+				get_default_crtc(card, *current_output);
+
+			int def_w, def_h;
+
+			if (current_plane) {
+				def_w = current_plane->w;
+				def_h = current_plane->h;
+			} else {
+				def_w = current_output->mode.hdisplay;
+				def_h = current_output->mode.vdisplay;
 			}
+
+			auto fb = parse_fb(card, arg.arg, def_w, def_h);
+
+			if (current_plane)
+				current_plane->fb = fb;
+			else
+				current_output->fb = fb;
+
+			break;
+		}
+		}
+	}
+
+	// create default framebuffers if needed
+	for (OutputInfo& o : outputs) {
+		if (!o.crtc) {
+			get_default_crtc(card, *current_output);
+			o.user_set_crtc = true;
+		}
+
+		if (!o.fb && o.user_set_crtc)
+			o.fb = get_default_fb(card, o.mode.hdisplay, o.mode.vdisplay);
+
+		for (PlaneInfo &p : o.planes) {
+			if (!p.fb)
+				p.fb = get_default_fb(card, p.w, p.h);
+		}
+	}
+
+	return outputs;
+}
+
+static std::string videomode_to_string(const Videomode& mode)
+{
+	unsigned hfp, hsw, hbp;
+	unsigned vfp, vsw, vbp;
+
+	hfp = mode.hsync_start - mode.hdisplay;
+	hsw = mode.hsync_end - mode.hsync_start;
+	hbp = mode.htotal - mode.hsync_end;
+
+	vfp = mode.vsync_start - mode.vdisplay;
+	vsw = mode.vsync_end - mode.vsync_start;
+	vbp = mode.vtotal - mode.vsync_end;
+
+	char buf[256];
+
+	sprintf(buf, "%.2f MHz %u/%u/%u/%u %u/%u/%u/%u %uHz",
+		mode.clock / 1000.0,
+		mode.hdisplay, hfp, hsw, hbp,
+		mode.vdisplay, vfp, vsw, vbp,
+		mode.vrefresh);
+
+	return std::string(buf);
+}
+
+static void print_outputs(const vector<OutputInfo>& outputs)
+{
+	for (unsigned i = 0; i < outputs.size(); ++i) {
+		const OutputInfo& o = outputs[i];
+
+		printf("Connector %u/@%u: %s\n", o.connector->id(), o.connector->idx(),
+		       o.connector->fullname().c_str());
+		printf("  Crtc %u/@%u: %ux%u-%u (%s)\n", o.crtc->id(), o.crtc->idx(),
+		       o.mode.hdisplay, o.mode.vdisplay, o.mode.vrefresh,
+		       videomode_to_string(o.mode).c_str());
+		if (o.fb)
+			printf("    Fb %ux%u-%s\n", o.fb->width(), o.fb->height(),
+			       PixelFormatToFourCC(o.fb->format()).c_str());
+
+		for (unsigned j = 0; j < o.planes.size(); ++j) {
+			const PlaneInfo& p = o.planes[j];
+			printf("  Plane %u/@%u: %u,%u-%ux%u\n", p.plane->id(), p.plane->idx(),
+			       p.x, p.y, p.w, p.h);
+			printf("    Fb %ux%u-%s\n", p.fb->width(), p.fb->height(),
+			       PixelFormatToFourCC(p.fb->format()).c_str());
 		}
+	}
+}
 
-		if (plane) {
-			auto planefb = new DumbFramebuffer(card, 400, 400, PixelFormat::YUYV);
-			draw_test_pattern(*planefb);
-			fbs.push_back(planefb);
+static void set_crtcs_n_planes(Card& card, const vector<OutputInfo>& outputs)
+{
+	for (const OutputInfo& o : outputs) {
+		auto conn = o.connector;
+		auto crtc = o.crtc;
 
-			int r = crtc->set_plane(plane, *planefb,
-					    0, 0, planefb->width(), planefb->height(),
-					    0, 0, planefb->width(), planefb->height());
+		if (o.fb) {
+			int r = crtc->set_mode(conn, *o.fb, o.mode);
+			if (r)
+				printf("crtc->set_mode() failed for crtc %u: %s\n",
+				       crtc->id(), strerror(-r));
+		}
 
-			ASSERT(r == 0);
+		for (const PlaneInfo& p : o.planes) {
+			int r = crtc->set_plane(p.plane, *p.fb,
+						p.x, p.y, p.w, p.h,
+						0, 0, p.fb->width(), p.fb->height());
+			if (r)
+				printf("crtc->set_plane() failed for plane %u: %s\n",
+				       p.plane->id(), strerror(-r));
 		}
 	}
+}
+
+int main(int argc, char **argv)
+{
+	vector<Arg> output_args = parse_cmdline(argc, argv);
+
+	Card card(s_device_path);
+
+	vector<OutputInfo> outputs = setups_to_outputs(card, output_args);
+
+	print_outputs(outputs);
+
+	set_crtcs_n_planes(card, outputs);
 
 	printf("press enter to exit\n");
 
 	getchar();
-
-	for(auto fb : fbs)
-		delete fb;
 }