annotate src/video/fbcon/SDL_fbelo.h @ 1643:51038e80ae59

More general fix for bug #189 The clipping is done at a higher level, and the low level functions are passed clipped rectangles. Drivers which don't support source clipping have not been changed, so the image will be squished instead of clipped, but at least they will no longer crash when the destination rect was out of bounds.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 17 Apr 2006 06:47:23 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef SDL_fbelo_h
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25 #define SDL_fbelo_h
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26
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27 #include "SDL_fbvideo.h"
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28
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29 /* ELO */
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30 #define ELO_PACKET_SIZE 10
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31 #define ELO_START_BYTE 'U'
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32
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33 /* eloConvertXY
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34 Convert the raw coordinates from the ELO controller
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35 to a screen position.
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36 */
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37 void eloConvertXY(_THIS, int *dx, int *dy);
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38
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39 /* eloInitController(int fd)
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40 Initialize the ELO serial touchscreen controller
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41 */
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42 int eloInitController(int fd);
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43
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44 /* eloParsePacket
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45 extract position and button state from a packet
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46 */
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47 int eloParsePacket(unsigned char* mousebuf, int* dx, int* dy, int* button_state);
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48
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49 /* eloReadPosition
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50 read a packet and get the cursor position
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51 */
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53 int eloReadPosition(_THIS, int fd, int* x, int* y, int* button_state, int* realx, int* realy);
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54
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55 #endif /* SDL_fbelo_h */