File/dir renames

7 files changed, 1697 insertions, 0 deletions

diff --git a/utils/CMakeLists.txt b/utils/CMakeLists.txt
new file mode 100644
index 0000000..3a7115e
--- /dev/null
+++ b/utils/CMakeLists.txt
@@ -0,0 +1,20 @@
+include_directories(${LIBDRM_INCLUDE_DIRS})
+link_directories(${LIBDRM_LIBRARY_DIRS})
+
+add_executable (db db.cpp)
+target_link_libraries(db kms++ kms++util ${LIBDRM_LIBRARIES})
+
+add_executable (testpat testpat.cpp)
+target_link_libraries(testpat kms++ kms++util ${LIBDRM_LIBRARIES})
+
+add_executable (kmsview kmsview.cpp)
+target_link_libraries(kmsview kms++ kms++util ${LIBDRM_LIBRARIES})
+
+add_executable (kmsprint kmsprint.cpp)
+target_link_libraries(kmsprint kms++ kms++util ${LIBDRM_LIBRARIES})
+
+add_executable (fbtestpat fbtestpat.cpp)
+target_link_libraries(fbtestpat kms++util)
+
+add_executable (kmscapture kmscapture.cpp)
+target_link_libraries(kmscapture kms++ kms++util ${LIBDRM_LIBRARIES})
diff --git a/utils/db.cpp b/utils/db.cpp
new file mode 100644
index 0000000..3e8420b
--- /dev/null
+++ b/utils/db.cpp
@@ -0,0 +1,265 @@
+#include <cstdio>
+#include <algorithm>
+#include <chrono>
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <drm_fourcc.h>
+
+#include "kms++.h"
+
+#include "test.h"
+
+using namespace std;
+using namespace kms;
+
+static void main_loop(Card& card);
+
+class Flipper
+{
+public:
+	Flipper(Card& card, unsigned width, unsigned height)
+		: m_current(0), m_bar_xpos(0)
+	{
+		auto format = PixelFormat::XRGB8888;
+		m_fbs[0] = new DumbFramebuffer(card, width, height, format);
+		m_fbs[1] = new DumbFramebuffer(card, width, height, format);
+	}
+
+	~Flipper()
+	{
+		delete m_fbs[0];
+		delete m_fbs[1];
+	}
+
+	Framebuffer* get_next()
+	{
+		m_current ^= 1;
+
+		const int bar_width = 20;
+		const int bar_speed = 8;
+
+		auto fb = m_fbs[m_current];
+
+		int current_xpos = m_bar_xpos;
+		int old_xpos = (current_xpos + (fb->width() - bar_width - bar_speed)) % (fb->width() - bar_width);
+		int new_xpos = (current_xpos + bar_speed) % (fb->width() - bar_width);
+
+		draw_color_bar(*fb, old_xpos, new_xpos, bar_width);
+
+		m_bar_xpos = new_xpos;
+
+		return fb;
+	}
+
+private:
+	DumbFramebuffer* m_fbs[2];
+
+	int m_current;
+	int m_bar_xpos;
+};
+
+class OutputFlipHandler : private PageFlipHandlerBase
+{
+public:
+	OutputFlipHandler(Connector* conn, Crtc* crtc, const Videomode& mode)
+		: m_connector(conn), m_crtc(crtc), m_mode(mode),
+		  m_flipper(conn->card(), mode.hdisplay, mode.vdisplay),
+		  m_plane(0), m_plane_flipper(0)
+	{
+	}
+
+	OutputFlipHandler(Connector* conn, Crtc* crtc, const Videomode& mode,
+			  Plane* plane, unsigned pwidth, unsigned pheight)
+		: m_connector(conn), m_crtc(crtc), m_mode(mode),
+		  m_flipper(conn->card(), mode.hdisplay, mode.vdisplay),
+		  m_plane(plane)
+	{
+		m_plane_flipper = new Flipper(conn->card(), pwidth, pheight);
+	}
+
+	~OutputFlipHandler()
+	{
+		if (m_plane_flipper)
+			delete m_plane_flipper;
+	}
+
+	OutputFlipHandler(const OutputFlipHandler& other) = delete;
+	OutputFlipHandler& operator=(const OutputFlipHandler& other) = delete;
+
+	void set_mode()
+	{
+		auto fb = m_flipper.get_next();
+		int r = m_crtc->set_mode(m_connector, *fb, m_mode);
+		ASSERT(r == 0);
+
+		if (m_crtc->card().has_atomic())
+			m_root_plane = m_crtc->get_primary_plane();
+
+		if (m_plane) {
+			auto planefb = m_plane_flipper->get_next();
+			r = m_crtc->set_plane(m_plane, *planefb,
+					      0, 0, planefb->width(), planefb->height(),
+					      0, 0, planefb->width(), planefb->height());
+			ASSERT(r == 0);
+		}
+	}
+
+	void start_flipping()
+	{
+		m_time_last = m_t1 = std::chrono::steady_clock::now();
+		m_slowest_frame = std::chrono::duration<float>::min();
+		m_frame_num = 0;
+		queue_next();
+	}
+
+private:
+	void handle_page_flip(uint32_t frame, double time)
+	{
+		++m_frame_num;
+
+		auto now = std::chrono::steady_clock::now();
+
+		std::chrono::duration<float> diff = now - m_time_last;
+		if (diff > m_slowest_frame)
+			m_slowest_frame = diff;
+
+		if (m_frame_num  % 100 == 0) {
+			std::chrono::duration<float> fsec = now - m_t1;
+			printf("Output %d: fps %f, slowest %.2f ms\n",
+			       m_connector->idx(), 100.0 / fsec.count(),
+			       m_slowest_frame.count() * 1000);
+			m_t1 = now;
+			m_slowest_frame = std::chrono::duration<float>::min();
+		}
+
+		m_time_last = now;
+
+		queue_next();
+	}
+
+	void queue_next()
+	{
+		auto crtc = m_crtc;
+		auto& card = crtc->card();
+
+		auto fb = m_flipper.get_next();
+		Framebuffer* planefb = m_plane ? m_plane_flipper->get_next() : 0;
+
+		if (card.has_atomic()) {
+			int r;
+
+			AtomicReq req(card);
+
+			req.add(m_root_plane, "FB_ID", fb->id());
+			if (m_plane)
+				req.add(m_plane, "FB_ID", planefb->id());
+
+			r = req.test();
+			ASSERT(r == 0);
+
+			r = req.commit(this);
+			ASSERT(r == 0);
+		} else {
+			int r = crtc->page_flip(*fb, this);
+			ASSERT(r == 0);
+
+			if (m_plane) {
+				r = m_crtc->set_plane(m_plane, *planefb,
+						      0, 0, planefb->width(), planefb->height(),
+						      0, 0, planefb->width(), planefb->height());
+				ASSERT(r == 0);
+			}
+		}
+	}
+
+private:
+	Connector* m_connector;
+	Crtc* m_crtc;
+	Videomode m_mode;
+	Plane* m_root_plane;
+
+	int m_frame_num;
+	chrono::steady_clock::time_point m_t1;
+	chrono::steady_clock::time_point m_time_last;
+	chrono::duration<float> m_slowest_frame;
+
+	Flipper m_flipper;
+
+	Plane* m_plane;
+	Flipper* m_plane_flipper;
+};
+
+int main()
+{
+	Card card;
+
+	if (card.master() == false)
+		printf("Not DRM master, modeset may fail\n");
+
+	vector<OutputFlipHandler*> outputs;
+
+	for (auto pipe : card.get_connected_pipelines())
+	{
+		auto conn = pipe.connector;
+		auto crtc = pipe.crtc;
+		auto mode = conn->get_default_mode();
+
+
+		Plane* plane = 0;
+#if 0 // disable the plane for now
+		for (Plane* p : crtc->get_possible_planes()) {
+			if (p->plane_type() == PlaneType::Overlay) {
+				plane = p;
+				break;
+			}
+		}
+#endif
+		OutputFlipHandler* output;
+		if (plane)
+			output = new OutputFlipHandler(conn, crtc, mode, plane, 500, 400);
+		else
+			output = new OutputFlipHandler(conn, crtc, mode);
+		outputs.push_back(output);
+	}
+
+	for(auto out : outputs)
+		out->set_mode();
+
+	for(auto out : outputs)
+		out->start_flipping();
+
+	main_loop(card);
+
+	for(auto out : outputs)
+		delete out;
+}
+
+static void main_loop(Card& card)
+{
+	fd_set fds;
+
+	FD_ZERO(&fds);
+
+	int fd = card.fd();
+
+	printf("press enter to exit\n");
+
+	while (true) {
+		int r;
+
+		FD_SET(0, &fds);
+		FD_SET(fd, &fds);
+
+		r = select(fd + 1, &fds, NULL, NULL, NULL);
+		if (r < 0) {
+			fprintf(stderr, "select() failed with %d: %m\n", errno);
+			break;
+		} else if (FD_ISSET(0, &fds)) {
+			fprintf(stderr, "exit due to user-input\n");
+			break;
+		} else if (FD_ISSET(fd, &fds)) {
+			card.call_page_flip_handlers();
+		}
+	}
+}
diff --git a/utils/fbtestpat.cpp b/utils/fbtestpat.cpp
new file mode 100644
index 0000000..d82f3e4
--- /dev/null
+++ b/utils/fbtestpat.cpp
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#include <linux/fb.h>
+
+#include "test.h"
+#include "extcpuframebuffer.h"
+
+using namespace kms;
+
+int main(int argc, char** argv)
+{
+	const char* fbdev = "/dev/fb0";
+	int r;
+
+	int fd = open(fbdev, O_RDWR);
+	FAIL_IF(fd < 0, "open %s failed\n", fbdev);
+
+	struct fb_var_screeninfo var;
+
+	r = ioctl(fd, FBIOGET_VSCREENINFO, &var);
+	FAIL_IF(r, "FBIOGET_VSCREENINFO failed");
+
+	struct fb_fix_screeninfo fix;
+
+	r = ioctl(fd, FBIOGET_FSCREENINFO, &fix);
+	FAIL_IF(r, "FBIOGET_FSCREENINFO failed");
+
+	uint8_t* ptr = (uint8_t*)mmap(NULL,
+			 var.yres_virtual * fix.line_length,
+			 PROT_WRITE | PROT_READ,
+			 MAP_SHARED, fd, 0);
+
+	FAIL_IF(ptr == MAP_FAILED, "mmap failed");
+
+	ExtCPUFramebuffer buf(var.xres, var.yres_virtual, PixelFormat::XRGB8888, ptr, fix.line_length);
+
+	printf("%s: res %dx%d, virtual %dx%d, line_len %d\n",
+	       fbdev,
+	       var.xres, var.yres,
+	       var.xres_virtual, var.yres_virtual,
+	       fix.line_length);
+
+	draw_test_pattern(buf);
+
+	for (unsigned y = 0; y < var.yres_virtual; ++y)
+		memcpy(ptr + fix.line_length * y, buf.map(0) + buf.stride(0) * y, buf.stride(0));
+
+	close(fd);
+
+	return 0;
+}
diff --git a/utils/kmscapture.cpp b/utils/kmscapture.cpp
new file mode 100644
index 0000000..ee700b7
--- /dev/null
+++ b/utils/kmscapture.cpp
@@ -0,0 +1,435 @@
+#include <linux/videodev2.h>
+#include <cstdio>
+#include <string.h>
+#include <poll.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <fstream>
+#include <sys/ioctl.h>
+#include <xf86drm.h>
+#include <glob.h>
+
+#include "kms++.h"
+#include "test.h"
+#include "opts.h"
+
+#define CAMERA_BUF_QUEUE_SIZE	3
+#define MAX_CAMERA		9
+
+using namespace std;
+using namespace kms;
+
+enum class BufferProvider {
+	DRM,
+	V4L2,
+};
+
+class CameraPipeline
+{
+public:
+	CameraPipeline(int cam_fd, Card& card, Crtc* crtc, Plane* plane, uint32_t x, uint32_t y,
+		       uint32_t iw, uint32_t ih, PixelFormat pixfmt,
+		       BufferProvider buffer_provider);
+	~CameraPipeline();
+
+	CameraPipeline(const CameraPipeline& other) = delete;
+	CameraPipeline& operator=(const CameraPipeline& other) = delete;
+
+	void show_next_frame(AtomicReq &req);
+	int fd() const { return m_fd; }
+	void start_streaming();
+private:
+	ExtFramebuffer* GetExtFrameBuffer(Card& card, uint32_t i, PixelFormat pixfmt);
+	int m_fd;	/* camera file descriptor */
+	Crtc* m_crtc;
+	Plane* m_plane;
+	BufferProvider m_buffer_provider;
+	vector<DumbFramebuffer*> m_fb; /* framebuffers for DRM buffers */
+	vector<ExtFramebuffer*> m_extfb; /* framebuffers for V4L2 buffers */
+	int m_prev_fb_index;
+	uint32_t m_in_width, m_in_height; /* camera capture resolution */
+	/* image properties for display */
+	uint32_t m_out_width, m_out_height;
+	uint32_t m_out_x, m_out_y;
+};
+
+static int buffer_export(int v4lfd, enum v4l2_buf_type bt, uint32_t index, int *dmafd)
+{
+	struct v4l2_exportbuffer expbuf;
+
+	memset(&expbuf, 0, sizeof(expbuf));
+	expbuf.type = bt;
+	expbuf.index = index;
+	if (ioctl(v4lfd, VIDIOC_EXPBUF, &expbuf) == -1) {
+		perror("VIDIOC_EXPBUF");
+		return -1;
+	}
+
+	*dmafd = expbuf.fd;
+
+	return 0;
+}
+
+ExtFramebuffer* CameraPipeline::GetExtFrameBuffer(Card& card, uint32_t i, PixelFormat pixfmt)
+{
+	int r, dmafd;
+
+	r = buffer_export(m_fd, V4L2_BUF_TYPE_VIDEO_CAPTURE, i, &dmafd);
+	ASSERT(r == 0);
+
+	uint32_t handle;
+	r = drmPrimeFDToHandle(card.fd(), dmafd, &handle);
+	ASSERT(r == 0);
+
+	const PixelFormatInfo& format_info = get_pixel_format_info(pixfmt);
+	ASSERT(format_info.num_planes == 1);
+
+	uint32_t handles[4] { handle };
+	uint32_t pitches[4] { m_in_width * (format_info.planes[0].bitspp / 8) };
+	uint32_t offsets[4] { };
+
+	return new ExtFramebuffer(card, m_in_width, m_in_height, pixfmt,
+				  handles, pitches, offsets);
+}
+
+bool inline better_size(struct v4l2_frmsize_discrete* v4ldisc,
+			uint32_t iw, uint32_t ih,
+			uint32_t best_w, uint32_t best_h)
+{
+	if (v4ldisc->width <= iw && v4ldisc->height <= ih &&
+	    (v4ldisc->width >= best_w || v4ldisc->height >= best_h))
+		return true;
+
+	return false;
+}
+
+CameraPipeline::CameraPipeline(int cam_fd, Card& card, Crtc *crtc, Plane* plane, uint32_t x, uint32_t y,
+			       uint32_t iw, uint32_t ih, PixelFormat pixfmt,
+			       BufferProvider buffer_provider)
+	: m_fd(cam_fd), m_crtc(crtc), m_buffer_provider(buffer_provider), m_prev_fb_index(-1)
+{
+
+	int r;
+	uint32_t best_w = 320;
+	uint32_t best_h = 240;
+
+	struct v4l2_frmsizeenum v4lfrms = { };
+	v4lfrms.pixel_format = (uint32_t)pixfmt;
+	while (ioctl(m_fd, VIDIOC_ENUM_FRAMESIZES, &v4lfrms) == 0) {
+		if (v4lfrms.type == V4L2_FRMSIZE_TYPE_DISCRETE) {
+			if (better_size(&v4lfrms.discrete, iw, ih,
+					best_w, best_h)) {
+				best_w = v4lfrms.discrete.width;
+				best_h = v4lfrms.discrete.height;
+			}
+		} else {
+			break;
+		}
+		v4lfrms.index++;
+	};
+
+	m_out_width = m_in_width = best_w;
+	m_out_height = m_in_height = best_h;
+	/* Move it to the middle of the requested area */
+	m_out_x = x + iw / 2 - m_out_width / 2;
+	m_out_y = y + ih / 2 - m_out_height / 2;
+
+	struct v4l2_format v4lfmt = { };
+	v4lfmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	r = ioctl(m_fd, VIDIOC_G_FMT, &v4lfmt);
+	ASSERT(r == 0);
+
+	v4lfmt.fmt.pix.pixelformat = (uint32_t)pixfmt;
+	v4lfmt.fmt.pix.width = m_in_width;
+	v4lfmt.fmt.pix.height = m_in_height;
+
+	r = ioctl(m_fd, VIDIOC_S_FMT, &v4lfmt);
+	ASSERT(r == 0);
+
+	uint32_t v4l_mem;
+
+	if (m_buffer_provider == BufferProvider::V4L2)
+		v4l_mem = V4L2_MEMORY_MMAP;
+	else
+		v4l_mem = V4L2_MEMORY_DMABUF;
+
+	struct v4l2_requestbuffers v4lreqbuf = { };
+	v4lreqbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	v4lreqbuf.memory = v4l_mem;
+	v4lreqbuf.count = CAMERA_BUF_QUEUE_SIZE;
+	r = ioctl(m_fd, VIDIOC_REQBUFS, &v4lreqbuf);
+	ASSERT(r == 0);
+	ASSERT(v4lreqbuf.count == CAMERA_BUF_QUEUE_SIZE);
+
+	struct v4l2_buffer v4lbuf = { };
+	v4lbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	v4lbuf.memory = v4l_mem;
+
+	for (unsigned i = 0; i < CAMERA_BUF_QUEUE_SIZE; i++) {
+		DumbFramebuffer *fb = NULL;
+		ExtFramebuffer *extfb = NULL;
+
+		if (m_buffer_provider == BufferProvider::V4L2)
+			extfb = GetExtFrameBuffer(card, i, pixfmt);
+		else
+			fb = new DumbFramebuffer(card, m_in_width,
+						 m_in_height, pixfmt);
+
+		v4lbuf.index = i;
+		if (m_buffer_provider == BufferProvider::DRM)
+			v4lbuf.m.fd = fb->prime_fd(0);
+		r = ioctl(m_fd, VIDIOC_QBUF, &v4lbuf);
+		ASSERT(r == 0);
+
+		if (m_buffer_provider == BufferProvider::V4L2)
+			m_extfb.push_back(extfb);
+		else
+			m_fb.push_back(fb);
+	}
+
+	m_plane = plane;
+
+	// Do initial plane setup with first fb, so that we only need to
+	// set the FB when page flipping
+	AtomicReq req(card);
+
+	Framebuffer *fb;
+	if (m_buffer_provider == BufferProvider::V4L2)
+		fb = m_extfb[0];
+	else
+		fb = m_fb[0];
+
+	req.add(m_plane, "CRTC_ID", m_crtc->id());
+	req.add(m_plane, "FB_ID", fb->id());
+
+	req.add(m_plane, "CRTC_X", m_out_x);
+	req.add(m_plane, "CRTC_Y", m_out_y);
+	req.add(m_plane, "CRTC_W", m_out_width);
+	req.add(m_plane, "CRTC_H", m_out_height);
+
+	req.add(m_plane, "SRC_X", 0);
+	req.add(m_plane, "SRC_Y", 0);
+	req.add(m_plane, "SRC_W", m_in_width << 16);
+	req.add(m_plane, "SRC_H", m_in_height << 16);
+
+	r = req.commit_sync();
+	FAIL_IF(r, "initial plane setup failed");
+}
+
+CameraPipeline::~CameraPipeline()
+{
+	for (unsigned i = 0; i < m_fb.size(); i++)
+		delete m_fb[i];
+
+	for (unsigned i = 0; i < m_extfb.size(); i++)
+		delete m_extfb[i];
+
+	::close(m_fd);
+}
+
+void CameraPipeline::start_streaming()
+{
+	enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+	int r = ioctl(m_fd, VIDIOC_STREAMON, &type);
+	FAIL_IF(r, "Failed to enable camera stream: %d", r);
+}
+
+void CameraPipeline::show_next_frame(AtomicReq& req)
+{
+	int r;
+	uint32_t v4l_mem;
+
+	if (m_buffer_provider == BufferProvider::V4L2)
+		v4l_mem = V4L2_MEMORY_MMAP;
+	else
+		v4l_mem = V4L2_MEMORY_DMABUF;
+
+	struct v4l2_buffer v4l2buf = { };
+	v4l2buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	v4l2buf.memory = v4l_mem;
+	r = ioctl(m_fd, VIDIOC_DQBUF, &v4l2buf);
+	if (r != 0) {
+		printf("VIDIOC_DQBUF ioctl failed with %d\n", errno);
+		return;
+	}
+
+	unsigned fb_index = v4l2buf.index;
+
+	Framebuffer *fb;
+	if (m_buffer_provider == BufferProvider::V4L2)
+		fb = m_extfb[fb_index];
+	else
+		fb = m_fb[fb_index];
+
+	req.add(m_plane, "FB_ID", fb->id());
+
+	if (m_prev_fb_index >= 0) {
+		memset(&v4l2buf, 0, sizeof(v4l2buf));
+		v4l2buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		v4l2buf.memory = v4l_mem;
+		v4l2buf.index = m_prev_fb_index;
+		if (m_buffer_provider == BufferProvider::DRM)
+			v4l2buf.m.fd = m_fb[m_prev_fb_index]->prime_fd(0);
+		r = ioctl(m_fd, VIDIOC_QBUF, &v4l2buf);
+		ASSERT(r == 0);
+
+	}
+
+	m_prev_fb_index = fb_index;
+}
+
+static bool is_capture_dev(int fd)
+{
+	struct v4l2_capability cap = { };
+	int r = ioctl(fd, VIDIOC_QUERYCAP, &cap);
+	ASSERT(r == 0);
+	return cap.capabilities & V4L2_CAP_VIDEO_CAPTURE;
+}
+
+std::vector<std::string> glob(const std::string& pat)
+{
+	glob_t glob_result;
+	glob(pat.c_str(), 0, NULL, &glob_result);
+	vector<string> ret;
+	for(unsigned i = 0; i < glob_result.gl_pathc; ++i)
+		ret.push_back(string(glob_result.gl_pathv[i]));
+	globfree(&glob_result);
+	return ret;
+}
+
+static const char* usage_str =
+		"Usage: kmscapture [OPTIONS]\n\n"
+		"Options:\n"
+		"  -s, --single                Single camera mode. Open only /dev/video0\n"
+		"      --buffer-type=<drm|v4l> Use DRM or V4L provided buffers. Default: DRM\n"
+		"  -h, --help                  Print this help\n"
+		;
+
+int main(int argc, char** argv)
+{
+	BufferProvider buffer_provider = BufferProvider::DRM;
+	bool single_cam = false;
+
+	OptionSet optionset = {
+		Option("s|single", [&]()
+		{
+			single_cam = true;
+		}),
+		Option("|buffer-type=", [&](string s)
+		{
+			if (s == "v4l")
+				buffer_provider = BufferProvider::V4L2;
+			else if (s == "drm")
+				buffer_provider = BufferProvider::DRM;
+			else
+				FAIL("Invalid buffer provider: %s", s.c_str());
+		}),
+		Option("h|help", [&]()
+		{
+			puts(usage_str);
+			exit(-1);
+		}),
+	};
+
+	optionset.parse(argc, argv);
+
+	if (optionset.params().size() > 0) {
+		puts(usage_str);
+		exit(-1);
+	}
+
+	auto pixfmt = PixelFormat::YUYV;
+
+	Card card;
+
+	auto conn = card.get_first_connected_connector();
+	auto crtc = conn->get_current_crtc();
+	printf("Display: %dx%d\n", crtc->width(), crtc->height());
+	printf("Buffer provider: %s\n", buffer_provider == BufferProvider::V4L2? "V4L" : "DRM");
+
+	vector<int> camera_fds;
+
+	for (string vidpath : glob("/dev/video*")) {
+		int fd = ::open(vidpath.c_str(), O_RDWR | O_NONBLOCK);
+
+		if (fd < 0)
+			continue;
+
+		if (!is_capture_dev(fd)) {
+			close(fd);
+			continue;
+		}
+
+		camera_fds.push_back(fd);
+
+		if (single_cam)
+			break;
+	}
+
+	FAIL_IF(camera_fds.size() == 0, "No cameras found");
+
+	vector<Plane*> available_planes;
+	for (Plane* p : crtc->get_possible_planes()) {
+		if (p->plane_type() != PlaneType::Overlay)
+			continue;
+
+		if (!p->supports_format(pixfmt))
+			continue;
+
+		available_planes.push_back(p);
+	}
+
+	FAIL_IF(available_planes.size() < camera_fds.size(), "Not enough video planes for cameras");
+
+	uint32_t plane_w = crtc->width() / camera_fds.size();
+	vector<CameraPipeline*> cameras;
+
+	for (unsigned i = 0; i < camera_fds.size(); ++i) {
+		int cam_fd = camera_fds[i];
+		Plane* plane = available_planes[i];
+
+		auto cam = new CameraPipeline(cam_fd, card, crtc, plane, i * plane_w, 0,
+					      plane_w, crtc->height(), pixfmt, buffer_provider);
+		cameras.push_back(cam);
+	}
+
+	unsigned nr_cameras = cameras.size();
+
+	vector<pollfd> fds(nr_cameras + 1);
+
+	for (unsigned i = 0; i < nr_cameras; i++) {
+		fds[i].fd = cameras[i]->fd();
+		fds[i].events =  POLLIN;
+	}
+	fds[nr_cameras].fd = 0;
+	fds[nr_cameras].events =  POLLIN;
+
+	for (auto cam : cameras)
+		cam->start_streaming();
+
+	while (true) {
+		int r = poll(fds.data(), nr_cameras + 1, -1);
+		ASSERT(r > 0);
+
+		if (fds[nr_cameras].revents != 0)
+			break;
+
+		AtomicReq req(card);
+
+		for (unsigned i = 0; i < nr_cameras; i++) {
+			if (!fds[i].revents)
+				continue;
+			cameras[i]->show_next_frame(req);
+			fds[i].revents = 0;
+		}
+
+		r = req.test();
+		FAIL_IF(r, "Atomic commit failed: %d", r);
+
+		req.commit_sync();
+	}
+
+	for (auto cam : cameras)
+		delete cam;
+}
diff --git a/utils/kmsprint.cpp b/utils/kmsprint.cpp
new file mode 100644
index 0000000..7b9de8c
--- /dev/null
+++ b/utils/kmsprint.cpp
@@ -0,0 +1,221 @@
+#include <cstdio>
+#include <algorithm>
+#include <iostream>
+
+#include "kms++.h"
+#include "opts.h"
+
+using namespace std;
+using namespace kms;
+
+namespace kmsprint {
+
+static struct {
+	bool print_props;
+	bool print_modes;
+	bool recurse;
+} opts;
+
+string width(int w, string str)
+{
+	str.resize(w, ' ');
+	return str;
+}
+
+void print_mode(const Videomode &m, int ind)
+{
+	printf("%s%s %6d %4d %4d %4d %4d %d %4d %4d %4d %4d %d  %2d 0x%04x %2d\n",
+	       width(ind, "").c_str(),
+	       m.name[0] == '\0' ? "" : width(11, m.name).c_str(),
+	       m.clock,
+	       m.hdisplay,
+	       m.hsync_start,
+	       m.hsync_end,
+	       m.htotal,
+	       m.hskew,
+	       m.vdisplay,
+	       m.vsync_start,
+	       m.vsync_end,
+	       m.vtotal,
+	       m.vscan,
+	       m.vrefresh,
+	       m.flags,
+	       m.type);
+}
+
+void print_property(uint64_t val, const Property& p, int ind)
+{
+	printf("%s%s (id %d) = %s\n", width(ind, "").c_str(),
+	       p.name().c_str(), p.id(), p.to_str(val).c_str());
+}
+
+void print_properties(DrmObject& o, int ind)
+{
+	auto pmap = o.get_prop_map();
+	printf("%sProperties, %u in total:\n", width(ind, "").c_str(),
+	       (unsigned) pmap.size());
+	for (auto pp : pmap) {
+		const Property& p = *o.card().get_prop(pp.first);
+		print_property(pp.second, p, ind + 2);
+	}
+}
+
+void print_plane(Plane& p, int ind)
+{
+	printf("%sPlane Id %d %d,%d -> %dx%d formats:", width(ind, "").c_str(),
+	       p.id(), p.crtc_x(), p.crtc_y(), p.x(), p.y());
+	for (auto f : p.get_formats())
+		printf(" %s", PixelFormatToFourCC(f).c_str());
+	printf("\n");
+
+	if (opts.print_props)
+		print_properties(p, ind+2);
+}
+
+void print_crtc(Crtc& cc, int ind)
+{
+	printf("%sCRTC Id %d BufferId %d %dx%d at %dx%d gamma_size %d\n",
+	       width(ind, "").c_str(), cc.id(), cc.buffer_id(), cc.width(),
+	       cc.height(), cc.x(), cc.y(), cc.gamma_size());
+
+	printf("%s   Mode ", width(ind, "").c_str());
+	print_mode(cc.mode(), 0);
+
+	if (opts.print_props)
+		print_properties(cc, ind+2);
+
+	if (opts.recurse)
+		for (auto p : cc.get_possible_planes())
+			print_plane(*p, ind + 2);
+}
+
+void print_encoder(Encoder& e, int ind)
+{
+	printf("%sEncoder Id %d type %s\n", width(ind, "").c_str(),
+	       e.id(), e.get_encoder_type().c_str());
+
+	if (opts.print_props)
+		print_properties(e, ind+2);
+
+	if (opts.recurse)
+		for (auto cc : e.get_possible_crtcs())
+			print_crtc(*cc, ind + 2);
+}
+
+void print_connector(Connector& c, int ind)
+{
+	printf("%sConnector %s Id %d %sconnected", width(ind, "").c_str(),
+	       c.fullname().c_str(), c.id(), c.connected() ? "" : "dis");
+	if (c.subpixel() != 0)
+		printf(" Subpixel: %s", c.subpixel_str().c_str());
+	printf("\n");
+
+	if (opts.print_props)
+		print_properties(c, ind+2);
+
+	if (opts.recurse)
+		for (auto enc : c.get_encoders())
+			print_encoder(*enc, ind + 2);
+
+	if (opts.print_modes) {
+		auto modes = c.get_modes();
+		printf("%sModes, %u in total:\n", width(ind + 2, "").c_str(),
+		       (unsigned) modes.size());
+		for (auto mode : modes)
+			print_mode(mode, ind + 3);
+	}
+}
+
+}
+
+using namespace kmsprint;
+
+static const char* usage_str =
+		"Usage: kmsprint [OPTIONS]\n\n"
+		"Options:\n"
+		"  -m, --modes       Print modes\n"
+		"  -p, --props       Print properties\n"
+		"  -r, --recurse     Recursively print all related objects\n"
+		"      --id=<ID>     Print object <ID>\n"
+		;
+
+static void usage()
+{
+	puts(usage_str);
+}
+
+int main(int argc, char **argv)
+{
+	string dev_path;
+	unsigned id = 0;
+
+	OptionSet optionset = {
+		Option("|device=",
+		[&](string s)
+		{
+			dev_path = s;
+		}),
+		Option("|id=",
+		[&](string s)
+		{
+			id = stoul(s);
+		}),
+		Option("p", [&](string s)
+		{
+			opts.print_props = true;
+		}),
+		Option("m", [&](string s)
+		{
+			opts.print_modes = true;
+		}),
+		Option("r", [&](string s)
+		{
+			opts.recurse = true;
+		}),
+		Option("h|help", [&]()
+		{
+			usage();
+			exit(-1);
+		}),
+	};
+
+	optionset.parse(argc, argv);
+
+	if (optionset.params().size() > 0) {
+		usage();
+		exit(-1);
+	}
+
+	Card card;
+
+	/* No options impliles recursion */
+	if (id == 0) {
+		opts.recurse = true;
+		for (auto conn : card.get_connectors())
+			print_connector(*conn, 0);
+		return 0;
+	} else {
+		auto ob = card.get_object(id);
+		if (!ob) {
+			cerr << "kmsprint" << ": Object id " <<
+				id << " not found." << endl;
+			return -1;
+		}
+
+		if (auto co = dynamic_cast<Connector*>(ob))
+			print_connector(*co, 0);
+		else if (auto en = dynamic_cast<Encoder*>(ob))
+			print_encoder(*en, 0);
+		else if (auto cr = dynamic_cast<Crtc*>(ob))
+			print_crtc(*cr, 0);
+		else if (auto pl = dynamic_cast<Plane*>(ob))
+			print_plane(*pl, 0);
+		else {
+			cerr << "kmsprint" << ": Unkown DRM Object type" <<
+				endl;
+			return -1;
+		}
+
+		return 0;
+	}
+}
diff --git a/utils/kmsview.cpp b/utils/kmsview.cpp
new file mode 100644
index 0000000..aae7e80
--- /dev/null
+++ b/utils/kmsview.cpp
@@ -0,0 +1,92 @@
+#include <cstdio>
+#include <fstream>
+#include <unistd.h>
+
+#include "kms++.h"
+
+#include "test.h"
+
+using namespace std;
+using namespace kms;
+
+static void read_frame(ifstream& is, DumbFramebuffer* fb, Crtc* crtc, Plane* plane)
+{
+	for (unsigned i = 0; i < fb->num_planes(); ++i)
+		is.read((char*)fb->map(i), fb->size(i));
+
+	unsigned w = min(crtc->width(), fb->width());
+	unsigned h = min(crtc->height(), fb->height());
+
+	int r = crtc->set_plane(plane, *fb,
+				0, 0, w, h,
+				0, 0, fb->width(), fb->height());
+
+	ASSERT(r == 0);
+}
+
+int main(int argc, char** argv)
+{
+	if (argc != 5) {
+		printf("Usage: %s <file> <width> <height> <fourcc>\n", argv[0]);
+		return -1;
+	}
+
+	string filename = argv[1];
+	uint32_t w = stoi(argv[2]);
+	uint32_t h = stoi(argv[3]);
+	string modestr = argv[4];
+
+	auto pixfmt = FourCCToPixelFormat(modestr);
+
+
+	ifstream is(filename, ifstream::binary);
+
+	is.seekg(0, std::ios::end);
+	unsigned fsize = is.tellg();
+	is.seekg(0);
+
+
+	Card card;
+
+	auto conn = card.get_first_connected_connector();
+	auto crtc = conn->get_current_crtc();
+
+	auto fb = new DumbFramebuffer(card, w, h, pixfmt);
+
+	Plane* plane = 0;
+
+	for (Plane* p : crtc->get_possible_planes()) {
+		if (p->plane_type() != PlaneType::Overlay)
+			continue;
+
+		if (!p->supports_format(pixfmt))
+			continue;
+
+		plane = p;
+		break;
+	}
+
+	FAIL_IF(!plane, "available plane not found");
+
+
+	unsigned frame_size = 0;
+	for (unsigned i = 0; i < fb->num_planes(); ++i)
+		frame_size += fb->size(i);
+
+	unsigned num_frames = fsize / frame_size;
+	printf("file size %u, frame size %u, frames %u\n", fsize, frame_size, num_frames);
+
+	for (unsigned i = 0; i < num_frames; ++i) {
+		printf("frame %d\n", i);
+		read_frame(is, fb, crtc, plane);
+		usleep(1000*50);
+	}
+
+	printf("press enter to exit\n");
+
+	is.close();
+
+	getchar();
+
+	delete fb;
+}
diff --git a/utils/testpat.cpp b/utils/testpat.cpp
new file mode 100644
index 0000000..ede176c
--- /dev/null
+++ b/utils/testpat.cpp
@@ -0,0 +1,604 @@
+#include <cstdio>
+#include <cstring>
+#include <algorithm>
+#include <regex>
+#include <set>
+
+#include "kms++.h"
+#include "modedb.h"
+
+#include "test.h"
+#include "opts.h"
+
+using namespace std;
+using namespace kms;
+
+struct PlaneInfo
+{
+	Plane* plane;
+
+	unsigned x;
+	unsigned y;
+	unsigned w;
+	unsigned h;
+
+	DumbFramebuffer* fb;
+};
+
+struct OutputInfo
+{
+	Connector* connector;
+
+	Crtc* crtc;
+	Videomode mode;
+	bool user_set_crtc;
+	DumbFramebuffer* fb;
+
+	vector<PlaneInfo> planes;
+};
+
+static bool s_use_dmt;
+static bool s_use_cea;
+
+static set<Crtc*> s_used_crtcs;
+static set<Plane*> s_used_planes;
+
+__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());
+	}
+}
+
+static void get_default_connector(Card& card, OutputInfo& output)
+{
+	output.connector = card.get_first_connected_connector();
+	output.mode = output.connector->get_default_mode();
+}
+
+static void parse_connector(Card& card, const string& str, OutputInfo& output)
+{
+	Connector* conn = nullptr;
+
+	auto connectors = card.get_connectors();
+
+	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);
+
+			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);
+
+			conn = c;
+		}
+	}
+
+	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());
+
+	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+)(i)?)(?:@(\\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]);
+	bool ilace = sm[5].matched ? true : false;
+	unsigned refresh = sm[6].matched ? stoul(sm[6]) : 0;
+
+	bool found_mode = false;
+
+	try {
+		output.mode = output.connector->get_mode(w, h, refresh, ilace);
+		found_mode = true;
+	} catch (exception& e) { }
+
+	if (!found_mode && s_use_dmt) {
+		try {
+			output.mode = find_dmt(w, h, refresh, ilace);
+			found_mode = true;
+			printf("Found mode from DMT\n");
+		} catch (exception& e) { }
+	}
+
+	if (!found_mode && s_use_cea) {
+		try {
+			output.mode = find_cea(w, h, refresh, ilace);
+			found_mode = true;
+			printf("Found mode from CEA\n");
+		} catch (exception& e) { }
+	}
+
+	if (!found_mode)
+		throw invalid_argument("Mode not found");
+}
+
+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+)");
+
+	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"
+		"      --dmt                 Search for the given mode from DMT tables\n"
+		"      --cea                 Search for the given mode from CEA tables\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("|dmt", []()
+		{
+			s_use_dmt = true;
+		}),
+		Option("|cea", []()
+		{
+			s_use_cea = true;
+		}),
+		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 = mode.hsync_start - mode.hdisplay;
+	unsigned hsw = mode.hsync_end - mode.hsync_start;
+	unsigned hbp = mode.htotal - mode.hsync_end;
+
+	unsigned vfp = mode.vsync_start - mode.vdisplay;
+	unsigned vsw = mode.vsync_end - mode.vsync_start;
+	unsigned vbp = mode.vtotal - mode.vsync_end;
+
+	float hz = (mode.clock * 1000.0) / (mode.htotal * mode.vtotal);
+	if (mode.flags & (1<<4)) // XXX interlace
+		hz *= 2;
+
+	char buf[256];
+
+	sprintf(buf, "%.2f MHz %u/%u/%u/%u %u/%u/%u/%u %uHz (%.2fHz)",
+		mode.clock / 1000.0,
+		mode.hdisplay, hfp, hsw, hbp,
+		mode.vdisplay, vfp, vsw, vbp,
+		mode.vrefresh, hz);
+
+	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());
+		}
+	}
+}
+
+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;
+
+		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));
+		}
+
+		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();
+}