From ea402fc1ce659e39914e4abbf9433e6e1a58607c Mon Sep 17 00:00:00 2001 From: olg Date: Sat, 18 Dec 2010 15:00:30 +0100 Subject: [PATCH] Initial commit for mtdev2tuio. --- .gitignore | 82 ++++++++ COPYING | 674 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Makefile.am | 20 ++ autogen.sh | 10 + configure.ac | 24 +++ mtdev2tuio.c | 287 +++++++++++++++++++++++++ 6 files changed, 1097 insertions(+) create mode 100644 .gitignore create mode 100644 COPYING create mode 100644 Makefile.am create mode 100755 autogen.sh create mode 100644 configure.ac create mode 100644 mtdev2tuio.c diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..f39d5b3 --- /dev/null +++ b/.gitignore @@ -0,0 +1,82 @@ +# +# X.Org module default exclusion patterns +# The next section if for module specific patterns +# +# Do not edit the following section +# GNU Build System (Autotools) +aclocal.m4 +autom4te.cache/ +autoscan.log +ChangeLog +compile +config.guess +config.h +config.h.in +config.log +config-ml.in +config.py +config.status +config.status.lineno +config.sub +configure +configure.scan +depcomp +.deps/ +install-sh +.libs/ +libtool +libtool.m4 +ltmain.sh +lt~obsolete.m4 +ltoptions.m4 +ltsugar.m4 +ltversion.m4 +Makefile +Makefile.in +mdate-sh +missing +mkinstalldirs +*.pc +py-compile +stamp-h? +symlink-tree +texinfo.tex +ylwrap + +# Do not edit the following section +# Edit Compile Debug Document Distribute +*~ +*.[0-9] +*.[0-9]x +*.bak +*.bin +core +*.dll +*.exe +*-ISO*.bdf +*-JIS*.bdf +*-KOI8*.bdf +*.kld +*.ko +*.ko.cmd +*.lai +*.l[oa] +*.[oa] +*.obj +*.patch +*.so +*.pcf.gz +*.pdb +*.tar.bz2 +*.tar.gz +# +# Add & Override patterns for mtdev +# +# Edit the following section as needed +# For example, !report.pc overrides *.pc. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..8134bd3 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,20 @@ + +#INCLUDES = $(top_srcdir)/include/ + +.PHONY: ChangeLog INSTALL +INSTALL: + $(INSTALL_CMD) +ChangeLog: + git log > ChangeLog + +dist-hook: ChangeLog INSTALL + +bin_PROGRAMS = mtdev2tuio + +#INCLUDES=-I$(top_srcdir)/include/ + +mtdev2tuio_SOURCES = mtdev2tuio.c +mtdev2tuio_LDFLAGS = $(MTDEV_LIBS) $(LO_LIBS) +mtdev2tuio_CPPFLAGS = $(MTDEV_CFLAGS) $(LO_CFLAGS) + + diff --git a/autogen.sh b/autogen.sh new file mode 100755 index 0000000..a4fa9a2 --- /dev/null +++ b/autogen.sh @@ -0,0 +1,10 @@ +#! /bin/sh + +srcdir=`dirname $0` +test -z "$srcdir" && srcdir=. + +ORIGDIR=`pwd` +cd $srcdir + +autoreconf -v --install || exit 1 +cd $ORIGDIR || exit $? diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..4ae53ee --- /dev/null +++ b/configure.ac @@ -0,0 +1,24 @@ +# Initialize Autoconf +AC_PREREQ([2.60]) +AC_INIT([Multitouch Protocol Translation Library], + [1.0.11], + [], + [mtdev]) +AC_CONFIG_SRCDIR([Makefile.am]) +AC_CONFIG_HEADERS([config.h]) + + +PKG_CHECK_MODULES(MTDEV, mtdev >= 1.0.0) +PKG_CHECK_MODULES(LO, liblo >= 0.0.0) + +# Initialize Automake +AM_INIT_AUTOMAKE([foreign dist-bzip2]) +AM_MAINTAINER_MODE + + +# Checks for programs. +AC_PROG_CC +AC_PROG_INSTALL + +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT diff --git a/mtdev2tuio.c b/mtdev2tuio.c new file mode 100644 index 0000000..a094830 --- /dev/null +++ b/mtdev2tuio.c @@ -0,0 +1,287 @@ +/* + * mtdev2tuio + * + * Copyright (C) 2010 Richard Nauber + * + * This tool is based on the excellent work of: + * liblo + * Copyright (C) 2004 Steve Harris, Uwe Koloska (LGPL) + * mtdev - Multitouch Protocol Translation Library (MIT license) + * Copyright (C) 2010 Henrik Rydberg + * Copyright (C) 2010 Canonical Ltd. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + * + ****************************************************************************/ + +/* TODO: + - calculate acceleration + - make TUIO port and address configurable + - implement pressure event(?) + - add a ctrl-c handler +*/ + +#include "lo/lo.h" +#include +#include + +#include +#include +#include +#include + +#define MAXSLOTS 8 + +#define DEBUG +//#define DEBUGV + +#ifdef DEBUG +#define DBG(x) printf x +#else +#define DBG(x) +#endif + +#ifdef DEBUGV +#define DBGV(x) printf x +#else +#define DBGV(x) +#endif + +#define NSEC_PER_USEC 1000L +#define NSEC_PER_SEC 1000000000L + +static inline __u64 timeval_to_ns(const struct timeval *tv) +{ + return ((__u64) tv->tv_sec * NSEC_PER_SEC) + + tv->tv_usec * NSEC_PER_USEC; +} + +typedef __u64 nstime; + +struct slotdata_t { + /* current sample */ + float x, y; + float dx, dy; + + /* previous samples */ + float x_1, y_1; + nstime tx_1, ty_1; + + int id; +}; + +struct state_t { + /* frame id */ + unsigned int fid; + + /* address of out tuio client*/ + lo_address tuioaddr; + + /* per slot information */ + struct slotdata_t sldata[MAXSLOTS]; + + /* current slot */ + int cs; + + /*normalisation values */ + int x_ofs, y_ofs; + float x_scale, y_scale; +}; + +static float calc_speed(float s, float s_1, nstime t, nstime t_1) +{ + return ((s - s_1) * (float)NSEC_PER_SEC / (t - t_1)); +} + +static void send_msg_set(struct state_t *s, int slot) +{ + + if (lo_send + (s->tuioaddr, "/tuio/2Dcur", "sifffff", "set", + s->sldata[slot].id, s->sldata[slot].x, + s->sldata[slot].y, s->sldata[slot].dx, s->sldata[slot].dy, + 0.0) == -1) { + printf("OSC error %d: %s\n", lo_address_errno(s->tuioaddr), + lo_address_errstr(s->tuioaddr)); + } + + DBG((" set %i: x=%f y=%f dx=%f dy=%f\n", s->sldata[s->cs].id, + s->sldata[slot].x, s->sldata[slot].y, s->sldata[slot].dx, + s->sldata[slot].dy)); +} + +static void send_msg_alive(struct state_t *s) +{ + lo_message msg_alive; + int i; + + msg_alive = lo_message_new(); + lo_message_add_string(msg_alive, "alive"); + + for (i = 0; i < MAXSLOTS; i++) { + if (s->sldata[i].id != -1) { + lo_message_add_int32(msg_alive, s->sldata[i].id); + DBGV((" id=%i ", s->sldata[i].id)); + } + } + + DBGV(("\n")); + + lo_send_message(s->tuioaddr, "/tuio/2Dcur", msg_alive); + lo_message_free(msg_alive); + + if (lo_send(s->tuioaddr, "/tuio/2Dcur", "si", "fseq", s->fid++) == -1) { + printf("OSC error %d: %s\n", + lo_address_errno(s->tuioaddr), + lo_address_errstr(s->tuioaddr)); + } + +} + +static void process_event(struct state_t *s, const struct input_event *ev) +{ + unsigned int i; + nstime time; + + if (ev->type == EV_ABS && ev->code == ABS_MT_SLOT) + s->cs = ev->value; + + DBGV(("%02d %01d %04x %d\n", s->cs, ev->type, ev->code, ev->value)); + + if (ev->type == EV_ABS) { + + switch (ev->code) { + case ABS_MT_TRACKING_ID: + s->sldata[s->cs].id = ev->value; + break; + + case ABS_MT_POSITION_X: + s->sldata[s->cs].x_1 = s->sldata[s->cs].x; + s->sldata[s->cs].x = + (ev->value - s->x_ofs) * s->x_scale; + time = timeval_to_ns(&ev->time); + + s->sldata[s->cs].dx = + calc_speed(s->sldata[s->cs].x, s->sldata[s->cs].x_1, + time, s->sldata[s->cs].tx_1); + s->sldata[s->cs].tx_1 = time; + + break; + + case ABS_MT_POSITION_Y: + + s->sldata[s->cs].y_1 = s->sldata[s->cs].y; + s->sldata[s->cs].y = + (ev->value - s->y_ofs) * s->y_scale; + time = timeval_to_ns(&ev->time); + + s->sldata[s->cs].dy = + calc_speed(s->sldata[s->cs].y, s->sldata[s->cs].y_1, + time, s->sldata[s->cs].ty_1); + s->sldata[s->cs].ty_1 = time; + + /* send "set" message for the current slot */ + send_msg_set(s, s->cs); + break; + + default: + break; + } + } + + if (ev->type == EV_SYN && ev->code == SYN_REPORT) { + /* send "alive" message for all active slots */ + send_msg_alive(s); + + } + +} + +static void init_state(struct mtdev *dev, struct state_t *s) +{ + unsigned int i; + + /* calculate scale factors */ + + s->x_ofs = dev->caps.abs[MTDEV_POSITION_X].minimum; + s->y_ofs = dev->caps.abs[MTDEV_POSITION_Y].minimum; + + s->x_scale = + 1.0f / (dev->caps.abs[MTDEV_POSITION_X].maximum - + dev->caps.abs[MTDEV_POSITION_X].minimum); + s->y_scale = + 1.0f / (dev->caps.abs[MTDEV_POSITION_Y].maximum - + dev->caps.abs[MTDEV_POSITION_Y].minimum); + + DBG(("x=%i-%i y=%i-%i\n", dev->caps.abs[MTDEV_POSITION_X].minimum, + dev->caps.abs[MTDEV_POSITION_X].maximum, + dev->caps.abs[MTDEV_POSITION_Y].minimum, + dev->caps.abs[MTDEV_POSITION_Y].maximum)); + + /* mark all slots as unused */ + for (i = 0; i < MAXSLOTS; i++) { + s->sldata[i].id = -1; + } + + s->cs = 0; + +} + +int main(int argc, char *argv[]) +{ + int fd; + struct mtdev dev; + struct state_t state; + struct input_event ev; + + if (argc < 2) { + fprintf(stderr, "Usage: mtdev2tuio \n"); + return -1; + } + fd = open(argv[1], O_RDONLY | O_NONBLOCK); + if (fd < 0) { + fprintf(stderr, "error: could not open device\n"); + return -1; + } + if (ioctl(fd, EVIOCGRAB, 1)) { + fprintf(stderr, "error: could not grab the device\n"); + return -1; + } + + if (mtdev_open(&dev, fd)) { + fprintf(stderr, "error: could not open device!\n"); + return; + } + + /* initialize */ + init_state(&dev, &state); + + /* set the tuio address */ +// tuioaddr = lo_address_new_from_url( "osc.unix://localhost/tmp/mysocket" ); + state.tuioaddr = lo_address_new(NULL, "3333"); + + /* process all available events */ + while (1) { + while (mtdev_get(&dev, fd, &ev, 1) > 0) { + process_event(&state, &ev); + } + } + + /* this is not executed yet ! */ + mtdev_close(&dev); + + ioctl(fd, EVIOCGRAB, 0); + close(fd); + return 0; +} -- 2.11.4.GIT