From Ulrich Hertlein and Stephan Huber, improves to iOS build

README.txt

@@ -147,32 +147,30 @@ still images, and a QTKit plugin will need to be developed to handle
 animations.
 
 
--- Release notes on IOS build, by Thomas Hoghart
+-- Release notes on iOS build, by Thomas Hoghart
 
-* Manually set the relevant OSG_BUILD_PLATFORM_IPHONE... option in root 
-  CMakeLists file. Can only have one or the other at the moment.
-* Run CMake
-* Disable all OpenGL types accodrding to OSG_GLES1_AVALIABLE or 
-  OSG_GLES2_AVALIABLE. Also disable OSG_GLU_AVAILABLE
-* Disable OSG_GL_DISPLAYLISTS_AVALIABLE
+* Run CMake with either OSG_BUILD_PLATFORM_IPHONE or OSG_BUILD_PLATFORM_IPHONE_SIMULATOR set:
+  $ mkdir build-iOS ; cd build-iOS
+  $ ccmake -DOSG_BUILD_PLATFORM_IPHONE_SIMULATOR=YES -G Xcode ..
+* Check that CMAKE_OSX_ARCHITECTURE is i386 for the simulator or armv6;armv7 for the device
+* Disable DYNAMIC_OPENSCENEGRAPH, DYNAMIC_OPENTHREADS
+  This will give us the static build we need for iPhone.
+* Disable OSG_GL1_AVAILABLE, OSG_GL2_AVAILABLE, OSG_GL3_AVAILABLE, OSG_GLU_AVAILABLE
+* Enable OSG_GLES1_AVAILABLE *OR* OSG_GLES2_AVAILABLE
 * Ensure OSG_WINDOWING_SYSTEM is set to IOS
-* Change FREETYPE include and library paths to an IPhone version 
+* Change FREETYPE include and library paths to an iPhone version 
   (OpenFrameworks has one bundled with its distribution)
-* Under DYNAMIC ensure you untick DYNAMIC_OPENSCENEGRAPH and 
-  DYNAMIC_OPENTHREADS. This will give us the static build we need 
-  for IPhone
-* Under CMake ensure the CMake_OSX_SYSROOT points to your 
-  IOS SDK. Also check that the architecture is armv6/7 for 
-  device or i386 for Simulator.
-* Generate the XCode project
-* Find osgDB FileUtis.cpp, open the 'Get Info' panel, change File Type
+* Ensure that CMake_OSX_SYSROOT points to your iOS SDK.
+* Generate the Xcode project
+* Open the Xcode project
+  $ open OpenSceneGraph.xcodeproj
+* Under Sources -> osgDB, select FileUtils.cpp and open the 'Get Info' panel, change File Type
   to source.cpp.objcpp
+
+Known issues:
 * When Linking final app against ive plugin, you need to add -lz to 
   the 'Other linker flags' list.
-
-known Issues:
 * Apps and exes don't get created
 * You can only select Simulator, or Device projects. In the XCode 
   project you will see both types but the sdk they link will 
   be the same.
-

examples/CMakeLists.txt

@@ -243,8 +243,8 @@ ELSE(DYNAMIC_OPENSCENEGRAPH)
     ADD_SUBDIRECTORY(osgstaticviewer)
 
     # IPHONE_PORT@tom
-    IF(OSG_BUILD_PLATFORM_IPHONE || OSG_BUILD_PLATFORM_IPHONE_SIMULATOR)
-    ADD_SUBDIRECTORY(osgViewerIPhone)
+    IF(OSG_BUILD_PLATFORM_IPHONE OR OSG_BUILD_PLATFORM_IPHONE_SIMULATOR)
+        ADD_SUBDIRECTORY(osgviewerIPhone)
     ENDIF()
      # IPHONE_PORT@tom
     

examples/osgviewerIPhone/CMakeLists.txt

@@ -6,8 +6,12 @@ SET(TARGET_SRC
     osgIPhoneViewer-Info.plist
 )
 
-#INCLUDE_DIRECTORIES( ${GLUT_INCLUDE_DIR} )
-SET(TARGET_LIBRARIES_VARS Foundation.framework QuartzCore.framework UIKit.framework)
-
-#### end var setup  ###
+#backup setting
+SET(TMP_OSG_BUILD_APPLICATION_BUNDLES {$OSG_BUILD_APPLICATION_BUNDLES})
+SET(OSG_BUILD_APPLICATION_BUNDLES TRUE)
 SETUP_EXAMPLE(osgViewerIPhone)
+#restore setting
+SET(OSG_BUILD_APPLICATION_BUNDLES {$TMP_OSG_BUILD_APPLICATION_BUNDLES})
+
+SET(CMAKE_EXE_LINKER_FLAGS "-framework Foundation -framework OpenGLES  -framework UIKit")
+

include/osgViewer/api/IOS/GraphicsWindowIOS

@@ -39,26 +39,29 @@ class UIView;
 
 #include <osgViewer/GraphicsWindow>
 
-// we may not include any cocoa-header here, because this will pollute the name-sapce and tend to compile-errors
+// Do not include any cocoa-header here, because this will pollute the name-space and causes compile errors
 
 namespace osgViewer
 {
-
+/**
+ * Implementation of a GraphicsWindow for the iOS platform.
+ */
 class GraphicsWindowIOS : public osgViewer::GraphicsWindow
 {
     public:
         class Implementation;
 
-        GraphicsWindowIOS(osg::GraphicsContext::Traits* traits)
-			: GraphicsWindow(),
+        GraphicsWindowIOS(osg::GraphicsContext::Traits* traits) : GraphicsWindow(),
             _valid(false),
             _initialized(false),
             _realized(false),
+            _window(NULL),
+            _view(NULL),
+            _viewController(NULL),
+            _context(NULL),
             _ownsWindow(true),
             _adaptToDeviceOrientation(true),
-			_viewContentScaleFactor(-1.0f),
-            _window(NULL),
-            _context(NULL)
+            _viewContentScaleFactor(-1.0f)
         {
             _traits = traits;
 
@@ -120,8 +123,6 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
         /** Raise the window to the top.*/
         virtual void raiseWindow();
         
-        bool requestClose() {return false; }
-        
         virtual void resizedImplementation(int x, int y, int width, int height);
         
         virtual bool setWindowRectangleImplementation(int x, int y, int width, int height);

src/osgDB/CMakeLists.txt

@@ -32,6 +32,14 @@ ELSE ()
     ADD_DEFINITIONS(-DOSG_LIBRARY_STATIC)
 ENDIF()
 
+IF (APPLE) 
+   IF(OSG_BUILD_PLATFORM_IPHONE OR OSG_BUILD_PLATFORM_IPHONE_SIMULATOR)
+     # compile FileUtils.cpp as objective-c++
+     SET_SOURCE_FILES_PROPERTIES(FileUtils.cpp
+       PROPERTIES COMPILE_FLAGS "-x objective-c++"
+     )
+   ENDIF()
+ENDIF()
 
 
 SET(LIB_NAME osgDB)