Mercurial > sdl-ios-xcode
view include/SDL_touch.h @ 4920:a4032241deb5
Fixed massive stack memory usage in the gesture functions
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 30 Nov 2010 18:07:31 -0800 |
parents | f9ab8df6d45a |
children | b530ef003506 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2010 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ /** * \file SDL_touch.h * * Include file for SDL touch event handling. */ #ifndef _SDL_touch_h #define _SDL_touch_h #include "SDL_stdinc.h" #include "SDL_error.h" #include "SDL_video.h" #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ extern "C" { /* *INDENT-ON* */ #endif typedef Sint64 SDL_TouchID; typedef Sint64 SDL_FingerID; struct SDL_Finger { SDL_FingerID id; Uint16 x; Uint16 y; Uint16 pressure; Uint16 xdelta; Uint16 ydelta; Uint16 last_x, last_y,last_pressure; /* the last reported coordinates */ SDL_bool down; }; typedef struct SDL_Touch SDL_Touch; typedef struct SDL_Finger SDL_Finger; struct SDL_Touch { /* Free the touch when it's time */ void (*FreeTouch) (SDL_Touch * touch); /* data common for tablets */ float pressure_max, pressure_min; float x_max,x_min; float y_max,y_min; Uint16 xres,yres,pressureres; float native_xres,native_yres,native_pressureres; float tilt; /* for future use */ float rotation; /* for future use */ /* Data common to all touch */ SDL_TouchID id; SDL_Window *focus; char *name; Uint8 buttonstate; SDL_bool relative_mode; SDL_bool flush_motion; int num_fingers; int max_fingers; SDL_Finger** fingers; void *driverdata; }; /* Function prototypes */ /** * \brief Get the touch object at the given id. * * */ extern DECLSPEC SDL_Touch* SDLCALL SDL_GetTouch(SDL_TouchID id); /** * \brief Get the finger object of the given touch, at the given id. * * */ extern DECLSPEC SDL_Finger* SDLCALL SDL_GetFinger(SDL_Touch *touch, SDL_FingerID id); /* Ends C function definitions when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ } /* *INDENT-ON* */ #endif #include "close_code.h" #endif /* _SDL_mouse_h */ /* vi: set ts=4 sw=4 expandtab: */