Mercurial > sdl-ios-xcode
view src/video/ataricommon/SDL_ataric2p_s.h @ 1157:baf35853ad54
Date: Mon, 10 Oct 2005 13:09:32 +0300
From: Tommi Kyntola <tommi.kyntola@ray.fi>
To: sdl@libsdl.org
Subject: [SDL] [RFC] get_ticks broken on linux
It uses gettimeofday to calculate the timedifference.
Gettimeofday returns current time which is seldom monotonous.
This breaks SDL timer subsystem. (time callbacks and all that
get borked when the time difference ms is suddenly ~ 2^32)
I posted a message about this earlier but got no response.
Some thoughts on this matter would be appreciated.
(Or even an explanation for the lack of interest.)
A patch below would use the posix timers that have been around
since posix 93 and do provide a good source of monotonous time
on linux boxes (and on few others too).
The following patch is also availabe at:
http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch
It's against 1.2.9, but I can easily rediffit against
the cvs branch is needed.
cheers,
Tommi Kyntola tommi.kyntola@ray.fi
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Tue, 11 Oct 2005 18:16:12 +0000 |
parents | 93207759e065 |
children | c9b51268668f |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 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@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif #ifndef _ATARI_C2P_h #define _ATARI_C2P_h #include "SDL_types.h" /*--- Functions pointers ---*/ /* Convert a chunky screen to bitplane screen */ extern void (*SDL_Atari_C2pConvert)( Uint8 *src, /* Source screen (one byte=one pixel) */ Uint8 *dest, /* Destination (4/8 bits planes) */ Uint32 width, /* Dimensions of screen to convert */ Uint32 height, Uint32 dblligne, /* Double the lines when converting ? */ Uint32 srcpitch, /* Length of one source line in bytes */ Uint32 dstpitch /* Length of one destination line in bytes */ ); /*--- 8 bits functions ---*/ /* Convert a chunky screen to bitplane screen */ void SDL_Atari_C2pConvert8( Uint8 *src, /* Source screen (one byte=one pixel) */ Uint8 *dest, /* Destination (8 bits planes) */ Uint32 width, /* Dimensions of screen to convert */ Uint32 height, Uint32 dblligne, /* Double the lines when converting ? */ Uint32 srcpitch, /* Length of one source line in bytes */ Uint32 dstpitch /* Length of one destination line in bytes */ ); /*--- 4 bits functions ---*/ /* Convert a chunky screen to bitplane screen */ void SDL_Atari_C2pConvert4( Uint8 *src, /* Source screen (one byte=one pixel) */ Uint8 *dest, /* Destination (4 bits planes) */ Uint32 width, /* Dimensions of screen to convert */ Uint32 height, Uint32 dblligne, /* Double the lines when converting ? */ Uint32 srcpitch, /* Length of one source line in bytes */ Uint32 dstpitch /* Length of one destination line in bytes */ ); /* Conversion palette */ void SDL_Atari_C2pConvert4_pal(Uint16 *lightpalette); #endif /* _ATARI_C2P_h */