view src/SDL_loadso.c @ 1133:609c060fd2a2

The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails: To: SDL Developers <sdl@libsdl.org> From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se> Date: Mon, 30 May 2005 23:29:04 +0200 Subject: [SDL] Mac OS X Video Drivers [patch] I've updated/added the Carbon and X11 video drivers to the Mac OS X port of SDL 1.2 (the CVS version), and made the Cocoa driver and runtime *optional*. The default is still Cocoa, and the "Quartz" driver. But you can now also use "toolbox" for Carbon, and "x11" for running with Apple's (or other) X11 server: export SDL_VIDEODRIVER=x11 export SDL_VIDEO_GL_DRIVER=/usr/X11R6/lib/libGL.dylib It also checks if the frameworks are available, by a: #include <Carbon/Carbon.h> or #import <Cocoa/Cocoa.h> (this should make it configure on plain Darwin as well?) Here are the new configure targets: --enable-video-cocoa use Cocoa/Quartz video driver default=yes --enable-video-carbon use Carbon/QuickDraw video driver default=yes --enable-video-x11 use X11 video driver default=no ./configure --enable-video-cocoa --enable-video-carbon --enable-video-x11 \ --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib The Carbon version is just an updated version of the old SDL driver for Mac OS 9, and could probably be improved... (but it does work, including the Carbon version of SDLmain) If you disable cocoa, you can run with -framework Carbon only, and the C version of SDL_main.c. And if you disable carbon too, you can still use the X11 version which doesn't require SDLmain. I updated the DrawSprocket version, but did not include it. (no blitters or VRAM GWorlds etc. available on OS X anyway) Besides for Mac OS 9, I don't think there's any use for it ? And note that any performance on Mac OS X equals OpenGL anyway... You can get "fair" software SDL results on captured CG displays, but for decent frame rates you need to be using GL for rendering. Finally, here is the patch itself: http://www.algonet.se/~afb/SDL-12CVS-macvideo.patch --anders PS. It says "video", but as usual it applies to mouse/keyboard too. ------ To: A list for developers using the SDL library <sdl@libsdl.org> From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se> Date: Sun, 4 Sep 2005 10:02:15 +0200 Subject: [SDL] Updated Mac patch Updated the previous Mac patch to disable Carbon by default. Also "fixed" the SDL.spec again, so that it builds on Darwin. http://www.algonet.se/~afb/SDL-1.2.9-mac.patch Also applied fine to SDL12 CVS, when I tried it.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 08 Sep 2005 06:16:14 +0000
parents 0c3e00cc9580
children cf6133247d34
line wrap: on
line source

/*
    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

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* System dependent library loading routines                           */

#include <stdio.h>
#if defined(USE_DLOPEN)
# include <dlfcn.h>
#elif defined(WIN32)
# include <windows.h>
#elif defined(__BEOS__)
# include <be/kernel/image.h>
#elif defined(macintosh)
# include <string.h>
# include <Strings.h>
# include <CodeFragments.h>
# include <Errors.h>
#elif defined(__MINT__) && defined(ENABLE_LDG)
# include <gem.h>
# include <ldg.h>
#else
/*#error Unsupported dynamic link environment*/
#endif /* system type */

#include "SDL_types.h"
#include "SDL_error.h"
#include "SDL_loadso.h"

void *SDL_LoadObject(const char *sofile)
{
	void *handle = NULL;
	const char *loaderror = "SDL_LoadObject() not implemented";
#if defined(USE_DLOPEN)
/* * */
	handle = dlopen(sofile, RTLD_NOW);
	loaderror = (char *)dlerror();
#elif defined(WIN32)
/* * */
	char errbuf[512];

	handle = (void *)LoadLibrary(sofile);

	/* Generate an error message if all loads failed */
	if ( handle == NULL ) {
		FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
					FORMAT_MESSAGE_FROM_SYSTEM),
				NULL, GetLastError(), 
				MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
				errbuf, SDL_TABLESIZE(errbuf), NULL);
		loaderror = errbuf;
	}
#elif defined(__BEOS__)
/* * */
	image_id library_id;

	library_id = load_add_on(sofile);
	if ( library_id == B_ERROR ) {
		loaderror = "BeOS error";
	} else {
		handle = (void *)(library_id);
	}
#elif defined(macintosh)
/* * */
	CFragConnectionID library_id;
	Ptr mainAddr;
	Str255 errName;
	OSErr error;
	char psofile[512];

	strncpy(psofile, sofile, SDL_TABLESIZE(psofile));
	psofile[SDL_TABLESIZE(psofile)-1] = '\0';
	error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,
			kLoadCFrag, &library_id, &mainAddr, errName);
	switch (error) {
		case noErr:
			loaderror = NULL;
			break;
		case cfragNoLibraryErr:
			loaderror = "Library not found";
			break;
		case cfragUnresolvedErr:
			loaderror = "Unabled to resolve symbols";
			break;
		case cfragNoPrivateMemErr:
		case cfragNoClientMemErr:
			loaderror = "Out of memory";
			break;
		default:
			loaderror = "Unknown Code Fragment Manager error";
			break;
	}
	if ( loaderror == NULL ) {
		handle = (void *)(library_id);
	}
#elif defined(__MINT__) && defined(ENABLE_LDG)
/* * */
	handle = (void *)ldg_open((char *)sofile, ldg_global);
#endif /* system type */

	if ( handle == NULL ) {
		SDL_SetError("Failed loading %s: %s", sofile, loaderror);
	}
	return(handle);
}

void *SDL_LoadFunction(void *handle, const char *name)
{
	void *symbol = NULL;
	const char *loaderror = "SDL_LoadFunction not implemented";
#if defined(USE_DLOPEN)
/* * */
	symbol = dlsym(handle, name);
	if ( symbol == NULL ) {
		loaderror = (char *)dlerror();
	}
#elif defined(WIN32)
/* * */
	char errbuf[512];

	symbol = (void *)GetProcAddress((HMODULE)handle, name);
	if ( symbol == NULL ) {
		FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
					FORMAT_MESSAGE_FROM_SYSTEM),
				NULL, GetLastError(), 
				MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
				errbuf, SDL_TABLESIZE(errbuf), NULL);
		loaderror = errbuf;
	}
#elif defined(__BEOS__)
/* * */
	image_id library_id = (image_id)handle;
	if ( get_image_symbol(library_id,
		name, B_SYMBOL_TYPE_TEXT, &symbol) != B_NO_ERROR ) {
		loaderror = "Symbol not found";
	}
#elif defined(macintosh)
/* * */
	CFragSymbolClass class;
	CFragConnectionID library_id = (CFragConnectionID)handle;
	char pname[512];

	strncpy(pname, name, SDL_TABLESIZE(pname));
	pname[SDL_TABLESIZE(pname)-1] = '\0';
	if ( FindSymbol(library_id, C2PStr(pname),
	                (char **)&symbol, &class) != noErr ) {
		loaderror = "Symbol not found";
	}
#elif defined(__MINT__) && defined(ENABLE_LDG)
/* * */
	symbol = (void *)ldg_find((char *)name, (LDG *)handle);
#endif /* system type */

	if ( symbol == NULL ) {
		SDL_SetError("Failed loading %s: %s", name, loaderror);
	}
	return(symbol);
}

void SDL_UnloadObject(void *handle)
{
#if defined(__BEOS__)
	image_id library_id;
#elif defined(macintosh)
	CFragConnectionID library_id;
#endif
	if ( handle == NULL ) {
		return;
	}
#if defined(USE_DLOPEN)
/* * */
	dlclose(handle);
#elif defined(WIN32)
/* * */
	FreeLibrary((HMODULE)handle);
#elif defined(__BEOS__)
/* * */
	library_id = (image_id)handle;
	unload_add_on(library_id);
#elif defined(macintosh)
/* * */
	library_id = (CFragConnectionID)handle;
	CloseConnection(&library_id);
#elif defined(__MINT__) && defined(ENABLE_LDG)
/* * */
	ldg_close((LDG *)handle, ldg_global);
#endif /* system type */
}