Mercurial > sdl-ios-xcode
view src/cdrom/SDL_syscdrom.h @ 1295:c3e36ac8a94c
Date: Sun, 6 Mar 2005 17:06:20 +0100
From: Per Inge Mathisen
Subject: [SDL] Fullscreen refresh on win32
Windows has a terrible default for fullscreen 3D apps of 60mhz refresh
rate. This can be fixed by the user by going into his driver's
control panel and forcing the refresh rate higher. However, this not a
very user friendly way about it, and in any case SDL contains no code
that could figure out this that condition has afflicted the user.
So the question is, could SDL fix this for the user? It is possible
under Windows to request a higher refresh rate. The danger is of
course that if the user has an old monitor, and you request a too high
refresh rate, the monitor could be damaged. However, I believe there
might be a way around that: Check before switching what refresh rate
the user's desktop runs in, and if our fullscreen dimensions are equal
or less than those of the desktop, use the higher refresh rate of 60
and the desktop rate.
Since most users run their desktops in the same or higher resolution
something sane, this should fix this problem for most users.
Thoughts?
An alternative is to add an SDL_GL_GetAttribute(SDL_GL_REFRESH_RATE)
option so that programs can bitch at their users at their own
convenience.
- Per
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 30 Jan 2006 06:56:10 +0000 |
| parents | b8d311d90021 |
| 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 /* This is the system specific header for the SDL CD-ROM API */ /* Structure of CD audio control functions */ extern struct CDcaps { /* Get the name of the specified drive */ const char *(*Name)(int drive); /* Open the specified drive, returning a drive id, or -1 on error */ int (*Open)(int drive); /* Get table-of-contents (number of tracks + track info) for disk. The TOC information should be stored in the cdrom structure. This function should return 0 on success, or -1 on error. */ int (*GetTOC)(SDL_CD *cdrom); /* Return the current status and play position, in frames, of the drive. 'position' may be NULL, and if so, should be ignored. */ CDstatus (*Status)(SDL_CD *cdrom, int *position); /* Play from frame 'start' to 'start+len' */ int (*Play)(SDL_CD *cdrom, int start, int len); /* Pause play */ int (*Pause)(SDL_CD *cdrom); /* Resume play */ int (*Resume)(SDL_CD *cdrom); /* Stop play */ int (*Stop)(SDL_CD *cdrom); /* Eject the current disk */ int (*Eject)(SDL_CD *cdrom); /* Close the specified drive */ void (*Close)(SDL_CD *cdrom); } SDL_CDcaps; /* The number of available CD-ROM drives on the system */ extern int SDL_numcds; /* Function to scan the system for CD-ROM drives and fill SDL_CDcaps. * This function should set SDL_numcds to the number of available CD * drives. Drive 0 should be the system default CD-ROM. * It should return 0, or -1 on an unrecoverable fatal error. */ extern int SDL_SYS_CDInit(void); /* Function to perform any system-specific CD-ROM related cleanup */ extern void SDL_SYS_CDQuit(void);