Mercurial > sdl-ios-xcode
view docs/man3/SDL_VideoModeOK.3 @ 4287:0620847bf1a8 SDL-1.2
Fixed bug #798
kty@lavabit.com 2009-09-19 14:19:04 PDT
The stable release of SDL 1.2.13 for BeOS/Haiku has a bug in
BE_FindClosestFSMode that causes it to sometimes not select the best mode when
going fullscreen. There are in fact two bugs in the implementation but I will
not go into specifics because there is already a patch for it in the developer
SVN 1.3. However I am still reporting it because I believe the following code
is a better patch for the issue. The current implementation on SVN only works
if it is able to find an exact match for the requested mode. However, by
scanning from lowest-to-highest resolution instead of highest-to-lowest, one
can find the best mode at all times
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 10 Oct 2009 02:11:07 +0000 |
parents | 4e3b250c950e |
children | 1238da4a7112 |
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.TH "SDL_VideoModeOK" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_VideoModeOK \- Check to see if a particular video mode is supported\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_VideoModeOK\fP\fR(\fBint width, int height, int bpp, Uint32 flags\fR); .SH "DESCRIPTION" .PP \fBSDL_VideoModeOK\fP returns \fB0\fR if the requested mode is not supported under any bit depth, or returns the bits-per-pixel of the closest available mode with the given width, height and requested \fIsurface\fR flags (see \fI\fBSDL_SetVideoMode\fP\fR)\&. .PP The bits-per-pixel value returned is only a suggested mode\&. You can usually request and bpp you want when \fIsetting\fR the video mode and SDL will emulate that color depth with a shadow video surface\&. .PP The arguments to \fBSDL_VideoModeOK\fP are the same ones you would pass to \fISDL_SetVideoMode\fR .SH "EXAMPLE" .PP .nf \f(CWSDL_Surface *screen; Uint32 bpp; \&. \&. \&. printf("Checking mode 640x480@16bpp\&. "); bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE); if(!bpp){ printf("Mode not available\&. "); exit(-1); } printf("SDL Recommends 640x480@%dbpp\&. ", bpp); screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE); \&. \&.\fR .fi .PP .SH "SEE ALSO" .PP \fI\fBSDL_SetVideoMode\fP\fR, \fI\fBSDL_GetVideoInfo\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01