Mercurial > sdl-ios-xcode
view src/video/fbcon/SDL_fbelo.h @ 91:e85e03f195b4
From: "Markus F.X.J. Oberhumer"
Subject: SDL CVS patches
below you will find some small patches against the
current SDL CVS.
It adresses these things:
1) Use "&" instead of "%" in some cases. For negative
signed integers (x % 8) is not always (x & 7),
and the compiler can produce slightly faster
code when using "&" here.
2) Some const issues.
| author | Sam Lantinga <slouken@lokigames.com> |
|---|---|
| date | Sat, 07 Jul 2001 20:20:17 +0000 |
| parents | 4f6c5f021323 |
| children | e8157fcb3114 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@devolution.com */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif #ifndef SDL_fbelo_h #define SDL_fbelo_h #include <stdlib.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. */ void eloConvertXY(_THIS, int *dx, int *dy); /* eloInitController(int fd) Initialize the ELO serial touchscreen controller */ int eloInitController(int fd); /* eloParsePacket extract position and button state from a packet */ int eloParsePacket(unsigned char* mousebuf, int* dx, int* dy, int* button_state); /* eloReadPosition read a packet and get the cursor position */ int eloReadPosition(_THIS, int fd, int* x, int* y, int* button_state, int* realx, int* realy); #endif /* SDL_fbelo_h */