55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#ifndef SDL_x11pen_h_
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#define SDL_x11pen_h_
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#ifdef SDL_VIDEO_DRIVER_X11_XINPUT2
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#include "SDL_x11video.h"
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#include "../../events/SDL_pen_c.h"
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/* Pressure-sensitive pen */
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/* Forward definition for SDL_x11video.h */
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struct SDL_VideoData;
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/* Function definitions */
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/* Detect XINPUT2 devices that are pens / erasers, or update the list after hotplugging */
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extern void X11_InitPen(SDL_VideoDevice *_this);
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/* Converts XINPUT2 valuators into pen axis information, including normalisation */
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extern void X11_PenAxesFromValuators(const SDL_Pen *pen,
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const double *input_values, const unsigned char *mask, const int mask_len,
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/* out-mode parameters: */
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float axis_values[SDL_PEN_NUM_AXES]);
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/* Map X11 device ID to pen ID */
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extern int X11_PenIDFromDeviceID(int deviceid);
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#endif /* SDL_VIDEO_DRIVER_X11_XINPUT2 */
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#endif /* SDL_x11pen_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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