Mercurial > sdl-ios-xcode
view src/video/SDL_cursor_c.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 /* Useful variables and functions from SDL_cursor.c */ #include "SDL_mouse.h" extern int SDL_CursorInit(Uint32 flags); extern void SDL_CursorPaletteChanged(void); extern void SDL_DrawCursor(SDL_Surface *screen); extern void SDL_DrawCursorNoLock(SDL_Surface *screen); extern void SDL_EraseCursor(SDL_Surface *screen); extern void SDL_EraseCursorNoLock(SDL_Surface *screen); extern void SDL_UpdateCursor(SDL_Surface *screen); extern void SDL_ResetCursor(void); extern void SDL_MoveCursor(int x, int y); extern void SDL_CursorQuit(void); #define INLINE_MOUSELOCK #ifdef INLINE_MOUSELOCK /* Inline (macro) versions of the mouse lock functions */ #include "SDL_mutex.h" extern SDL_mutex *SDL_cursorlock; #define SDL_LockCursor() \ do { \ if ( SDL_cursorlock ) { \ SDL_mutexP(SDL_cursorlock); \ } \ } while ( 0 ) #define SDL_UnlockCursor() \ do { \ if ( SDL_cursorlock ) { \ SDL_mutexV(SDL_cursorlock); \ } \ } while ( 0 ) #else extern void SDL_LockCursor(void); extern void SDL_UnlockCursor(void); #endif /* INLINE_MOUSELOCK */ /* Only for low-level mouse cursor drawing */ extern SDL_Cursor *SDL_cursor; extern void SDL_MouseRect(SDL_Rect *area); /* State definitions for the SDL cursor */ #define CURSOR_VISIBLE 0x01 #define CURSOR_USINGSW 0x10 #define SHOULD_DRAWCURSOR(X) \ (((X)&(CURSOR_VISIBLE|CURSOR_USINGSW)) == \ (CURSOR_VISIBLE|CURSOR_USINGSW)) extern volatile int SDL_cursorstate;