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author | Henrik Rydberg <rydberg@euromail.se> | 2010-06-15 21:05:52 +0200 |
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committer | Henrik Rydberg <rydberg@euromail.se> | 2010-06-16 02:28:08 +0200 |
commit | 1c73d171b2814bf2809aa48c2d4b683a064a4f7e (patch) | |
tree | a03e36ec079824362c94555541a33baec3c34644 /mtdev/test.c | |
parent | 753a645f463f2d72234554bc211cc32f65129929 (diff) | |
download | xorg-input-kobomultitouch-1c73d171b2814bf2809aa48c2d4b683a064a4f7e.tar.gz xorg-input-kobomultitouch-1c73d171b2814bf2809aa48c2d4b683a064a4f7e.tar.bz2 xorg-input-kobomultitouch-1c73d171b2814bf2809aa48c2d4b683a064a4f7e.zip |
refactor: Introduce mtdev
With the addition of the kernel MT slots, the MT event protocol
is capable of efficiently propagating changes to a set of tracked
contacts. At the same time, the need to treat a variety of different
kernel drivers is increased. This patch introduces the mtdev, an
abstract MT device which converts all valid MT event formats into
a uniform, slotted type B event stream. A command-line test program
is included.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to 'mtdev/test.c')
-rw-r--r-- | mtdev/test.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/mtdev/test.c b/mtdev/test.c new file mode 100644 index 0000000..bbe4829 --- /dev/null +++ b/mtdev/test.c @@ -0,0 +1,79 @@ +/*************************************************************************** + * + * Multitouch X driver + * Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se> + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + **************************************************************************/ + +#include "mtdev-iobuf.h" +#include "mtdev.h" +#include <fcntl.h> +#include <xbypass.h> + +static void print_event(const struct input_event *ev) +{ + static const mstime_t ms = 1000; + static int slot; + mstime_t evtime = ev->time.tv_usec / ms + ev->time.tv_sec * ms; + if (ev->type == EV_ABS && ev->code == ABS_MT_SLOT) + slot = ev->value; + fprintf(stderr, "%012llx: %04d: %04x %04x %d\n", + evtime, slot, ev->type, ev->code, ev->value); +} + +static void loop_device(int fd) +{ + struct Capabilities caps; + struct IOBuffer iobuf; + struct MTDev mtdev; + const struct input_event *ev; + struct input_event event; + if (read_capabilities(&caps, fd)) { + fprintf(stderr, "error: could not read device capabilities\n"); + return; + } + output_capabilities(&caps); + if (mtdev_init(&mtdev, &caps)) { + fprintf(stderr, "error: could not initialize device\n"); + return; + } + init_iobuf(&iobuf); + while (ev = get_iobuf_event(&iobuf, fd)) { + mtdev_push(&mtdev, &caps, ev); + while (!mtdev_empty(&mtdev)) { + mtdev_pop(&mtdev, &event); + print_event(&event); + } + } + mtdev_destroy(&mtdev); +} + +int main(int argc, char *argv[]) +{ + if (argc < 2) { + fprintf(stderr, "Usage: test <mtdev>\n"); + return -1; + } + int fd = open(argv[1], O_RDONLY); + if (fd < 0) { + fprintf(stderr, "error: could not open file\n"); + return -1; + } + loop_device(fd); + close(fd); + return 0; +} |