Mercurial > sdl-ios-xcode
view docs/man3/SDL_Init.3 @ 883:50f5a29c6a17
Date: Sat, 10 Apr 2004 02:25:33 -0400
From: Glenn Maynard
To: sdl@libsdl.org
Subject: [SDL] SDL_SetVideoMode() failing and not setting an error (patch)
Running an OpenGL SDL application off 1.2.7, at SDL_InitSubSystem(SDL_INIT_VIDEO) time:
Warning: Unable to initialize AAlib mouseUsing AAlib driver: Slang driver 1.0 (slang)
SDL_SetVideoMode then fails; SDL_GetError() returns "".
The installation problem is straightforward: X (the higher priority
driver) isn't running, so SDL is falling back on aalib. However,
no error is being set when aalib fails to initialize. This also
happens with the svgalib driver.
SDL_video.c line ~653 sets mode to NULL, since aalib didn't return an
OpenGL surface. Line ~711 ("failed setting a video mode") returns NULL.
The attached patch sets an error. It's a horrible, useless error
message--it should really say eg. "aalib does not support OpenGL"; this
should probably be done earlier in the individual drivers, too.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 11 Apr 2004 19:54:40 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_Init" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_Init\- Initializes SDL .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_Init\fP\fR(\fBUint32 flags\fR); .SH "DESCRIPTION" .PP Initializes SDL\&. This should be called before all other SDL functions\&. The \fBflags\fR parameter specifies what part(s) of SDL to initialize\&. .TP 20 \fBSDL_INIT_TIMER\fP Initializes the \fItimer\fR subsystem\&. .TP 20 \fBSDL_INIT_AUDIO\fP Initializes the \fIaudio\fR subsystem\&. .TP 20 \fBSDL_INIT_VIDEO\fP Initializes the \fIvideo\fR subsystem\&. .TP 20 \fBSDL_INIT_CDROM\fP Initializes the \fIcdrom\fR subsystem\&. .TP 20 \fBSDL_INIT_JOYSTICK\fP Initializes the \fIjoystick\fR subsystem\&. .TP 20 \fBSDL_INIT_EVERYTHING\fP Initialize all of the above\&. .TP 20 \fBSDL_INIT_NOPARACHUTE\fP Prevents SDL from catching fatal signals\&. .TP 20 \fBSDL_INIT_EVENTTHREAD\fP .SH "RETURN VALUE" .PP Returns \fB-1\fR on an error or \fB0\fR on success\&. .SH "SEE ALSO" .PP \fI\fBSDL_Quit\fP\fR, \fI\fBSDL_InitSubSystem\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00