view include/SDL_main.h @ 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 b8d311d90021
children d31afac94eff
line wrap: on
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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 _SDL_main_h
#define _SDL_main_h

/* Redefine main() on Win32 and MacOS so that it is called by winmain.c */

#if defined(WIN32) || defined(_WIN32) || \
    (defined(__MWERKS__) && !defined(__BEOS__)) || \
    defined(macintosh) || defined(__APPLE__) || \
    defined(__SYMBIAN32__) || defined(QWS)

#ifdef __cplusplus
#define C_LINKAGE	"C"
#else
#define C_LINKAGE
#endif /* __cplusplus */

/* The application's main() function must be called with C linkage,
   and should be declared like this:
#ifdef __cplusplus
extern "C"
#endif
	int main(int argc, char *argv[])
	{
	}
 */
#define main	SDL_main

/* The prototype for the application's main() function */
extern C_LINKAGE int SDL_main(int argc, char *argv[]);


/* From the SDL library code -- needed for registering the app on Win32 */
#if defined(WIN32)
#include "SDL_types.h"
#include "begin_code.h"

#ifdef __cplusplus
extern "C" {
#endif

/* This should be called from your WinMain() function, if any */
extern DECLSPEC void SDLCALL SDL_SetModuleHandle(void *hInst);
/* This can also be called, but is no longer necessary */
extern DECLSPEC int SDLCALL SDL_RegisterApp(char *name, Uint32 style, void *hInst);

#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif

/* From the SDL library code -- needed for registering QuickDraw on MacOS */
#if defined(macintosh)
#include "begin_code.h"

#ifdef __cplusplus
extern "C" {
#endif

/* Forward declaration so we don't need to include QuickDraw.h */
struct QDGlobals;

/* This should be called from your main() function, if any */
extern DECLSPEC void SDLCALL SDL_InitQuickDraw(struct QDGlobals *the_qd);

#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif

#endif /* Need to redefine main()? */

#endif /* _SDL_main_h */