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Diffstat (limited to 'src/state.h')
| -rw-r--r-- | src/state.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/state.h b/src/state.h new file mode 100644 index 0000000..256858a --- /dev/null +++ b/src/state.h @@ -0,0 +1,88 @@ +/***************************************************************************** + * + * mtdev - Multitouch Protocol Translation Library (MIT license) + * + * Copyright (C) 2010 Henrik Rydberg <rydberg@euromail.se> + * Copyright (C) 2010 Canonical Ltd. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + ****************************************************************************/ + +#ifndef MTDEV_STATE_H +#define MTDEV_STATE_H + +#include "iobuf.h" +#include "evbuf.h" + +/* + * struct mtdev_slot - represents the state of an input MT slot + * @abs: current values of ABS_MT axes for this slot + */ +struct mtdev_slot { + int touch_major; + int touch_minor; + int width_major; + int width_minor; + int orientation; + int position_x; + int position_y; + int tool_type; + int blob_id; + int tracking_id; + int pressure; + int distance; +}; + +static inline int get_sval(const struct mtdev_slot *slot, int ix) +{ + return (&slot->touch_major)[ix]; +} + +static inline void set_sval(struct mtdev_slot *slot, int ix, int value) +{ + (&slot->touch_major)[ix] = value; +} + +/* + * struct mtdev_state - MT slot parsing + * @inbuf: input event buffer + * @outbuf: output event buffer + * @data: array of scratch slot data + * @used: bitmask of currently used slots + * @slot: slot currently being modified + * @lastid: last used tracking id + */ +struct mtdev_state { + + int has_ext_abs[MT_ABS_SIZE - 11]; + struct input_absinfo ext_abs[MT_ABS_SIZE - 11]; + + struct mtdev_iobuf iobuf; + struct mtdev_evbuf inbuf; + struct mtdev_evbuf outbuf; + struct mtdev_slot data[DIM_FINGER]; + + bitmask_t used; + bitmask_t slot; + bitmask_t lastid; +}; + +#endif |