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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** GUIX Component */ |
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/** */ |
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/** System Management (System) */ |
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/** */ |
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/**************************************************************************/ |
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#define GX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "gx_api.h" |
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#include "gx_system.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_system_pen_speed_update PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Kenneth Maxwell, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This service sends the specified event for processing. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* event Pointer to event */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* status Completion status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* GX_ABS Compute the absolute value */ |
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/* tx_queue_send Send message through ThreadX */ |
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/* queue */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_system_event_fold Fold GUIX system events */ |
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/* _gx_system_event_send Send GUIX system event */ |
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/* */ |
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/**************************************************************************/ |
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VOID _gx_system_pen_speed_update(GX_POINT *current) |
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{ |
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ULONG current_clock; |
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#ifdef GX_THREADX_BINDING |
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current_clock = tx_time_get(); |
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#else |
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current_clock = GX_SYSTEM_TIME_GET; |
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#endif |
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_gx_system_clock_delta = (LONG)(current_clock - _gx_system_last_clock); |
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✓✓ |
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if (_gx_system_clock_delta > 0) |
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{ |
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✓✓ |
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if (_gx_system_clock_delta < (LONG)_gx_system_pen_configuration.gx_pen_configuration_max_pen_speed_ticks) |
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{ |
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_gx_system_pen_speed_x = GX_FIXED_VAL_MAKE(current -> gx_point_x - _gx_system_last_pen_point.gx_point_x); |
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_gx_system_pen_speed_x /= _gx_system_clock_delta; |
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_gx_system_pen_speed_y = GX_FIXED_VAL_MAKE(current -> gx_point_y - _gx_system_last_pen_point.gx_point_y); |
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_gx_system_pen_speed_y /= _gx_system_clock_delta; |
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} |
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else |
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{ |
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_gx_system_pen_speed_x = _gx_system_pen_speed_y = 0; |
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} |
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_gx_system_last_clock = current_clock; |
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_gx_system_last_pen_point = *current; |
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} |
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} |
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