Mercurial > sdl-ios-xcode
annotate README.iphoneos @ 2464:836790b9fcf1 gsoc2008_iphone
modified template build script
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
---|---|
date | Mon, 18 Aug 2008 18:27:00 +0000 |
parents | c330dcd78e3a |
children | f429ccf8e35f |
rev | line source |
---|---|
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
1 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
2 Building the Simple DirectMedia Layer for iPhone OS 2.0 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
3 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
4 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
5 Requirements: Mac OS X v10.5 or later and the iPhone SDK. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
6 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
7 To build SDL for iPhone, just open the XCode Project (XCodeiPhoneOS/SDL/SDLiPhoneOS.xcodeproj), select the target you wish to build, and hit 'build'. You can also build in a CLI environment using the xcodebuild command line tool, if you wish. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
8 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
9 There are three build targets: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
10 - StaticLibiPhoneOS: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
11 Build SDL as a statically linked (armv6) library for iPhone OS 2.0. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
12 - StaticLibSimulator: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
13 Build SDL as a statically linked (x86) library for the iPhone Simulator |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
14 - Template: |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
15 Package a project template together with the SDL for iPhone static libraries and copies of the SDL headers. The template includes proper references to the SDL library and headers, skeleton code for a basic SDL program, and placeholder graphics for the application icon and startup screen. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
16 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
17 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
18 Using the Simple DirectMedia Layer for iPhone OS 2.0 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
19 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
20 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
21 Here is the easiest method: |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
22 1. Build the SDL libraries (libSDLiPhoneOS.a and libSDLSimulator.a) and the iPhone SDL Application template. |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
23 1. Install the iPhone SDL Application template by copying it to one of XCode's template directories. I recommend creating a directory called "SDL" in "/Developer/Platforms/iPhoneOS.platform/Developer/Library/XCode/Project Templates/" and placing it there. |
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
24 2. Start a new project using the template. The project should be immediately ready for use with SDL. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
25 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
26 Here is a more manual method: |
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
27 1. Create a new iPhone view based application. |
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
28 2. Build the SDL static libraries (libSDLiPhoneOS.a and libSDLSimulator.a) for iPhone and include them in your project. XCode will ignore the library that is not currently of the correct architecture, hence your app will work both on iPhone and in the iPhone Simulator. |
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
29 3. Include the SDL header files in your project. |
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
30 4. Remove the ApplicationDelegate.h and ApplicationDelegate.m files -- SDL for iPhone provides its own UIApplicationDelegate. Remove MainWindow.xib -- SDL for iPhone produces its user interface programmatically. |
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
31 5. Delete the contents of main.m and program your app as a regular SDL program instead. You may replace main.m with your own main.c, but you must tell XCode not to use the project prefix file, as it includes Objective-C code. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
32 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
33 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
34 Notes -- Touch Input |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
35 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
36 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
37 Touch input in SDL for iPhone OS is presently exposed through SDL's mouse input API. Multi-touch input is reported as multiple mice, with each touch associated with a specific mouse. This association stays coherent from the time the touch starts to the time a touch ends. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
38 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
39 By default, multi-touch is turned ON. This requires some care, because if you simply respond to mouse events without checking which mouse caused the event, you may end up fetching data from the wrong mouse, ie, from an incorrect or invalid touch. To turn multi-touch OFF, you can recompile SDL for iPhone with the macro SDL_IPHONE_MULTIPLE_MICE (found in SDL_config_iphoneos.h) set to 0. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
40 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
41 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
42 Notes -- Accelerometer as Joystick |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
43 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
44 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
45 SDL for iPhone supports polling the built in accelerometer as a joystick device. For an example on how to do this, see the accelerometer.c in the demos directory. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
46 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
47 The main thing to note when using the accelerometer with SDL is that while the iPhone natively reports accelerometer as floating point values in units of g-force, SDL_JoystickGetAxis reports joystick values as signed integers. Hence, in order to convert between the two, some clamping and scaling is necessary on the part of the iPhone SDL joystick driver. To convert SDL_JoystickGetAxis reported values BACK to units of g-force, simply multiply the values by SDL_IPHONE_MAX_GFORCE / 0x7FFF. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
48 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
49 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
50 Notes -- OpenGL ES |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
51 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
52 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
53 Your SDL application for iPhone uses OpenGL ES for video by default. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
54 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
55 OpenGL ES for iPhone supports two display pixel formats, RGBA8 and RGB565, which provide a 32 bit and 16 bit color buffer respectively. By default, the implementation uses RGB565, but you may use RGBA8 by setting each color component to 8 bits in SDL_GL_SetAttribute. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
56 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
57 If your application doesn't use OpenGL's depth buffer, you may find significant performance improvement by setting SDL_GL_DEPTH_SIZE to 0. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
58 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
59 Finally, if your application completely redraws the screen each frame, you may find significant performance improvement by setting the attribute SDL_GL_RETAINED_BACKING to 1. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
60 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
61 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
62 Notes -- Keyboard |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
63 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
64 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
65 SDL for iPhone contains several additional functions related to keyboard visibility. These functions are not part of the SDL standard API, but are necessary for revealing and hiding the iPhone's virtual onscreen keyboard. You can use them in your own applications by including a copy of the SDL_uikitkeyboard.h header (located in src/video/uikit) in your project. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
66 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
67 int SDL_iPhoneKeyboardShow(SDL_WindowID windowID) |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
68 -- reveals the onscreen keyboard. Returns 0 on success and -1 on error. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
69 int SDL_iPhoneKeyboardHide(SDL_WindowID windowID) |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
70 -- hides the onscreen keyboard. Returns 0 on success and -1 on error. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
71 SDL_bool SDL_iPhoneKeyboardIsShown(SDL_WindowID windowID) |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
72 -- returns whether or not the onscreen keyboard is currently visible. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
73 int SDL_iPhoneKeyboardToggle(SDL_WindowID windowID) |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
74 -- toggles the visibility of the onscreen keyboard. Returns 0 on success and -1 on error. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
75 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
76 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
77 Notes -- Reading and Writing files |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
78 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
79 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
80 Each application installed on iPhone resides in a sandbox which includes its own Application Home directory. Your application may not access files outside this directory. |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
81 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
82 Once your application is installed its directory tree looks like: |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
83 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
84 MySDLApp Home/ |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
85 MySDLApp.app |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
86 Documents/ |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
87 Library/ |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
88 Preferences/ |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
89 tmp/ |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
90 |
2459
c330dcd78e3a
Grammar, spelling, clarity.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
2441
diff
changeset
|
91 When your SDL based iPhone application starts up, it sets the working directory to the main bundle (MySDLApp Home/MySDLApp.app), where your application resources are stored. You cannot write to this directory. Instead, I advise you to write document files to "../Documents/" and preferences to "../Library/Preferences". |
2441
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
92 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
93 More information on this subject is available here: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
94 http://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/ApplicationEnvironment/chapter_6_section_3.html#//apple_ref/doc/uid/TP40007072-CH7-SW21 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
95 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
96 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
97 Notes -- iPhone SDL limitations |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
98 ============================================================================== |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
99 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
100 Windows: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
101 Full-size, single window applications only. You cannot create multi-window SDL applications for iPhone OS. The application window will fill the display, though you have the option of turning on or off the menu-bar (pass SDL_CreateWindow the flag SDL_WINDOW_BORDERLESS). Presently, landscape mode is not supported. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
102 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
103 Video: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
104 For real time frame-rates, you are advised to use strictly SDL 1.3 video calls. Using compatibility video calls uploads an OpenGL texture for each frame drawn, and this operation is excruciatingly slow. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
105 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
106 Textures: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
107 SDL for iPhone Textures supports only SDL_PIXELFORMAT_ABGR8888 and SDL_PIXELFORMAT_RGB24 pixel formats. This is because texture support in SDL for iPhone is done through OpenGL ES, which supports fewer pixel formats than OpenGL, will not re-order pixel data for you, and has no support for color-paletted formats (without extensions). |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
108 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
109 Audio: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
110 SDL for iPhone does not yet support audio input. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
111 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
112 Loading Shared Objects: |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
113 This is disabled by default since it seems to break the terms of the iPhone SDK agreement. It can be re-enabled in SDL_config_iphoneos.h. |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
114 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
115 |
ed6a41cc2bce
Elaborated on features and limitations of SDL for iPhone. renamed and moved readme with all the other readmes.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff
changeset
|
116 |