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SDL_fbelo.h
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#ifndef SDL_fbelo_h
#define SDL_fbelo_h
#include "SDL_fbvideo.h"
/* ELO */
#define ELO_PACKET_SIZE 10
#define ELO_START_BYTE 'U'
/* eloConvertXY
Convert the raw coordinates from the ELO controller
to a screen position.
*/
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void eloConvertXY (_THIS, int *dx, int *dy);
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/* eloInitController(int fd)
Initialize the ELO serial touchscreen controller
*/
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int eloInitController (int fd);
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/* eloParsePacket
extract position and button state from a packet
*/
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int eloParsePacket (unsigned char *mousebuf, int *dx, int *dy,
int *button_state);
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/* eloReadPosition
read a packet and get the cursor position
*/
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int eloReadPosition (_THIS, int fd, int *x, int *y, int *button_state,
int *realx, int *realy);
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#endif /* SDL_fbelo_h */
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