mirror of
https://github.com/etlegacy/etlegacy-libs.git
synced 2024-11-10 14:51:58 +00:00
226 lines
9.8 KiB
Text
226 lines
9.8 KiB
Text
==============================================================================
|
|
Using the Simple DirectMedia Layer with Mac OS X
|
|
==============================================================================
|
|
|
|
These instructions are for people using Apple's Mac OS X (pronounced
|
|
"ten").
|
|
|
|
From the developer's point of view, OS X is a sort of hybrid Mac and
|
|
Unix system, and you have the option of using either traditional
|
|
command line tools or Apple's IDE Xcode.
|
|
|
|
To build SDL using the command line, use the standard configure and make
|
|
process:
|
|
|
|
./configure
|
|
make
|
|
sudo make install
|
|
|
|
You can also build SDL as a Universal library (a single binary for both
|
|
32-bit and 64-bit Intel architectures), on Mac OS X 10.7 and newer, by using
|
|
the fatbuild.sh script in build-scripts:
|
|
sh build-scripts/fatbuild.sh
|
|
sudo build-scripts/fatbuild.sh install
|
|
This script builds SDL with 10.5 ABI compatibility on i386 and 10.6
|
|
ABI compatibility on x86_64 architectures. For best compatibility you
|
|
should compile your application the same way. A script which wraps
|
|
gcc to make this easy is provided in test/gcc-fat.sh
|
|
|
|
Please note that building SDL requires at least Xcode 4.6 and the 10.7 SDK
|
|
(even if you target back to 10.5 systems). PowerPC support for Mac OS X has
|
|
been officially dropped as of SDL 2.0.2.
|
|
|
|
To use the library once it's built, you essential have two possibilities:
|
|
use the traditional autoconf/automake/make method, or use Xcode.
|
|
|
|
==============================================================================
|
|
Caveats for using SDL with Mac OS X
|
|
==============================================================================
|
|
|
|
Some things you have to be aware of when using SDL on Mac OS X:
|
|
|
|
- If you register your own NSApplicationDelegate (using [NSApp setDelegate:]),
|
|
SDL will not register its own. This means that SDL will not terminate using
|
|
SDL_Quit if it receives a termination request, it will terminate like a
|
|
normal app, and it will not send a SDL_DROPFILE when you request to open a
|
|
file with the app. To solve these issues, put the following code in your
|
|
NSApplicationDelegate implementation:
|
|
|
|
- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
|
|
{
|
|
if (SDL_GetEventState(SDL_QUIT) == SDL_ENABLE) {
|
|
SDL_Event event;
|
|
event.type = SDL_QUIT;
|
|
SDL_PushEvent(&event);
|
|
}
|
|
|
|
return NSTerminateCancel;
|
|
}
|
|
|
|
- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
|
|
{
|
|
if (SDL_GetEventState(SDL_DROPFILE) == SDL_ENABLE) {
|
|
SDL_Event event;
|
|
event.type = SDL_DROPFILE;
|
|
event.drop.file = SDL_strdup([filename UTF8String]);
|
|
return (SDL_PushEvent(&event) > 0);
|
|
}
|
|
|
|
return NO;
|
|
}
|
|
|
|
==============================================================================
|
|
Using the Simple DirectMedia Layer with a traditional Makefile
|
|
==============================================================================
|
|
|
|
An existing autoconf/automake build system for your SDL app has good chances
|
|
to work almost unchanged on OS X. However, to produce a "real" Mac OS X binary
|
|
that you can distribute to users, you need to put the generated binary into a
|
|
so called "bundle", which basically is a fancy folder with a name like
|
|
"MyCoolGame.app".
|
|
|
|
To get this build automatically, add something like the following rule to
|
|
your Makefile.am:
|
|
|
|
bundle_contents = APP_NAME.app/Contents
|
|
APP_NAME_bundle: EXE_NAME
|
|
mkdir -p $(bundle_contents)/MacOS
|
|
mkdir -p $(bundle_contents)/Resources
|
|
echo "APPL????" > $(bundle_contents)/PkgInfo
|
|
$(INSTALL_PROGRAM) $< $(bundle_contents)/MacOS/
|
|
|
|
You should replace EXE_NAME with the name of the executable. APP_NAME is what
|
|
will be visible to the user in the Finder. Usually it will be the same
|
|
as EXE_NAME but capitalized. E.g. if EXE_NAME is "testgame" then APP_NAME
|
|
usually is "TestGame". You might also want to use @PACKAGE@ to use the package
|
|
name as specified in your configure.in file.
|
|
|
|
If your project builds more than one application, you will have to do a bit
|
|
more. For each of your target applications, you need a separate rule.
|
|
|
|
If you want the created bundles to be installed, you may want to add this
|
|
rule to your Makefile.am:
|
|
|
|
install-exec-hook: APP_NAME_bundle
|
|
rm -rf $(DESTDIR)$(prefix)/Applications/APP_NAME.app
|
|
mkdir -p $(DESTDIR)$(prefix)/Applications/
|
|
cp -r $< /$(DESTDIR)$(prefix)Applications/
|
|
|
|
This rule takes the Bundle created by the rule from step 3 and installs them
|
|
into $(DESTDIR)$(prefix)/Applications/.
|
|
|
|
Again, if you want to install multiple applications, you will have to augment
|
|
the make rule accordingly.
|
|
|
|
|
|
But beware! That is only part of the story! With the above, you end up with
|
|
a bare bone .app bundle, which is double clickable from the Finder. But
|
|
there are some more things you should do before shipping your product...
|
|
|
|
1) The bundle right now probably is dynamically linked against SDL. That
|
|
means that when you copy it to another computer, *it will not run*,
|
|
unless you also install SDL on that other computer. A good solution
|
|
for this dilemma is to static link against SDL. On OS X, you can
|
|
achieve that by linking against the libraries listed by
|
|
sdl-config --static-libs
|
|
instead of those listed by
|
|
sdl-config --libs
|
|
Depending on how exactly SDL is integrated into your build systems, the
|
|
way to achieve that varies, so I won't describe it here in detail
|
|
2) Add an 'Info.plist' to your application. That is a special XML file which
|
|
contains some meta-information about your application (like some copyright
|
|
information, the version of your app, the name of an optional icon file,
|
|
and other things). Part of that information is displayed by the Finder
|
|
when you click on the .app, or if you look at the "Get Info" window.
|
|
More information about Info.plist files can be found on Apple's homepage.
|
|
|
|
|
|
As a final remark, let me add that I use some of the techniques (and some
|
|
variations of them) in Exult and ScummVM; both are available in source on
|
|
the net, so feel free to take a peek at them for inspiration!
|
|
|
|
|
|
==============================================================================
|
|
Using the Simple DirectMedia Layer with Xcode
|
|
==============================================================================
|
|
|
|
These instructions are for using Apple's Xcode IDE to build SDL applications.
|
|
|
|
- First steps
|
|
|
|
The first thing to do is to unpack the Xcode.tar.gz archive in the
|
|
top level SDL directory (where the Xcode.tar.gz archive resides).
|
|
Because Stuffit Expander will unpack the archive into a subdirectory,
|
|
you should unpack the archive manually from the command line:
|
|
cd [path_to_SDL_source]
|
|
tar zxf Xcode.tar.gz
|
|
This will create a new folder called Xcode, which you can browse
|
|
normally from the Finder.
|
|
|
|
- Building the Framework
|
|
|
|
The SDL Library is packaged as a framework bundle, an organized
|
|
relocatable folder hierarchy of executable code, interface headers,
|
|
and additional resources. For practical purposes, you can think of a
|
|
framework as a more user and system-friendly shared library, whose library
|
|
file behaves more or less like a standard UNIX shared library.
|
|
|
|
To build the framework, simply open the framework project and build it.
|
|
By default, the framework bundle "SDL.framework" is installed in
|
|
/Library/Frameworks. Therefore, the testers and project stationary expect
|
|
it to be located there. However, it will function the same in any of the
|
|
following locations:
|
|
|
|
~/Library/Frameworks
|
|
/Local/Library/Frameworks
|
|
/System/Library/Frameworks
|
|
|
|
- Build Options
|
|
There are two "Build Styles" (See the "Targets" tab) for SDL.
|
|
"Deployment" should be used if you aren't tweaking the SDL library.
|
|
"Development" should be used to debug SDL apps or the library itself.
|
|
|
|
- Building the Testers
|
|
Open the SDLTest project and build away!
|
|
|
|
- Using the Project Stationary
|
|
Copy the stationary to the indicated folders to access it from
|
|
the "New Project" and "Add target" menus. What could be easier?
|
|
|
|
- Setting up a new project by hand
|
|
Some of you won't want to use the Stationary so I'll give some tips:
|
|
* Create a new "Cocoa Application"
|
|
* Add src/main/macosx/SDLMain.m , .h and .nib to your project
|
|
* Remove "main.c" from your project
|
|
* Remove "MainMenu.nib" from your project
|
|
* Add "$(HOME)/Library/Frameworks/SDL.framework/Headers" to include path
|
|
* Add "$(HOME)/Library/Frameworks" to the frameworks search path
|
|
* Add "-framework SDL -framework Foundation -framework AppKit" to "OTHER_LDFLAGS"
|
|
* Set the "Main Nib File" under "Application Settings" to "SDLMain.nib"
|
|
* Add your files
|
|
* Clean and build
|
|
|
|
- Building from command line
|
|
Use pbxbuild in the same directory as your .pbproj file
|
|
|
|
- Running your app
|
|
You can send command line args to your app by either invoking it from
|
|
the command line (in *.app/Contents/MacOS) or by entering them in the
|
|
"Executables" panel of the target settings.
|
|
|
|
- Implementation Notes
|
|
Some things that may be of interest about how it all works...
|
|
* Working directory
|
|
As defined in the SDL_main.m file, the working directory of your SDL app
|
|
is by default set to its parent. You may wish to change this to better
|
|
suit your needs.
|
|
* You have a Cocoa App!
|
|
Your SDL app is essentially a Cocoa application. When your app
|
|
starts up and the libraries finish loading, a Cocoa procedure is called,
|
|
which sets up the working directory and calls your main() method.
|
|
You are free to modify your Cocoa app with generally no consequence
|
|
to SDL. You cannot, however, easily change the SDL window itself.
|
|
Functionality may be added in the future to help this.
|
|
|
|
|
|
Known bugs are listed in the file "BUGS"
|