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 
+* Run CMake with either OSG_BUILD_PLATFORM_IPHONE or OSG_BUILD_PLATFORM_IPHONE_SIMULATOR set:
-  CMakeLists file. Can only have one or the other at the moment.
+  $ mkdir build-iOS ; cd build-iOS
-* Run CMake
+  $ ccmake -DOSG_BUILD_PLATFORM_IPHONE_SIMULATOR=YES -G Xcode ..
-* Disable all OpenGL types accodrding to OSG_GLES1_AVALIABLE or 
+* Check that CMAKE_OSX_ARCHITECTURE is i386 for the simulator or armv6;armv7 for the device
-  OSG_GLES2_AVALIABLE. Also disable OSG_GLU_AVAILABLE
+* Disable DYNAMIC_OPENSCENEGRAPH, DYNAMIC_OPENTHREADS
-* Disable OSG_GL_DISPLAYLISTS_AVALIABLE
+  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 
+* Ensure that CMake_OSX_SYSROOT points to your iOS SDK.
-  DYNAMIC_OPENTHREADS. This will give us the static build we need 
+* Generate the Xcode project
-  for IPhone
+* Open the Xcode project
-* Under CMake ensure the CMake_OSX_SYSROOT points to your 
+  $ open OpenSceneGraph.xcodeproj
-  IOS SDK. Also check that the architecture is armv6/7 for 
+* Under Sources -> osgDB, select FileUtils.cpp and open the 'Get Info' panel, change File Type
-  device or i386 for Simulator.
-* Generate the XCode project
-* Find osgDB FileUtis.cpp, 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)
+    IF(OSG_BUILD_PLATFORM_IPHONE OR OSG_BUILD_PLATFORM_IPHONE_SIMULATOR)
-    ADD_SUBDIRECTORY(osgViewerIPhone)
+        ADD_SUBDIRECTORY(osgviewerIPhone)
     ENDIF()
      # IPHONE_PORT@tom
     

examples/osgviewerIPhone/CMakeLists.txt

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

@@ -39,31 +39,34 @@ 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;
+        class Implementation;
 
-        GraphicsWindowIOS(osg::GraphicsContext::Traits* traits)
+        GraphicsWindowIOS(osg::GraphicsContext::Traits* traits) : GraphicsWindow(),
-			: GraphicsWindow(),
             _valid(false),
             _initialized(false),
             _realized(false),
+            _window(NULL),
+            _view(NULL),
+            _viewController(NULL),
+            _context(NULL),
             _ownsWindow(true),
             _adaptToDeviceOrientation(true),
-			_viewContentScaleFactor(-1.0f),
+            _viewContentScaleFactor(-1.0f)
-            _window(NULL),
-            _context(NULL)
         {
             _traits = traits;
 
             init();
-            
+
             if (valid())
             {
                 setState( new osg::State );
@@ -116,11 +119,9 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
         
         /** Get focus on if the pointer is in this window.*/
         virtual void grabFocusIfPointerInWindow();
-		
-		/** Raise the window to the top.*/
-		virtual void raiseWindow();
         
-        bool requestClose() {return false; }
+        /** Raise the window to the top.*/
+        virtual void raiseWindow();
         
         virtual void resizedImplementation(int x, int y, int width, int height);
         
@@ -137,19 +138,19 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
                 WindowData(UIWindow* window = NULL, bool adaptToDeviceOrientation = true, float scaleFactor = -1.0f)
                 :   _window(window),
                     _adaptToDeviceOrientation(adaptToDeviceOrientation),
-					_viewContentScaleFactor(scaleFactor)
+                    _viewContentScaleFactor(scaleFactor)
                 {
                 }
                 
                 void setAdaptToDeviceOrientation(bool flag) { _adaptToDeviceOrientation = flag; }
-				
+                
-				void setViewContentScaleFactor(float scaleFactor) { _viewContentScaleFactor = scaleFactor; }
+                void setViewContentScaleFactor(float scaleFactor) { _viewContentScaleFactor = scaleFactor; }
                 
             private:
 
                 UIWindow*     _window;
                 bool          _adaptToDeviceOrientation;
-				float         _viewContentScaleFactor; 
+                float         _viewContentScaleFactor; 
         
             friend class GraphicsWindowIOS;
 
@@ -167,12 +168,12 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
         bool adaptToDeviceOrientation() const { return _adaptToDeviceOrientation; }
         
         void setAdaptToDeviceOrientation(bool flag) { _adaptToDeviceOrientation = flag; }
-		
+        
-		
+        
-		//
+        //
-		//helper funs for converting points to pixels
+        //helper funs for converting points to pixels
-		osg::Vec2 pointToPixel(const osg::Vec2& point);
+        osg::Vec2 pointToPixel(const osg::Vec2& point);
-		osg::Vec2 pixelToPoint(const osg::Vec2& pixel);
+        osg::Vec2 pixelToPoint(const osg::Vec2& pixel);
                 
     protected:
     
@@ -194,13 +195,13 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
         GraphicsWindowIOSWindow*      _window;
         GraphicsWindowIOSGLView*      _view;
         GraphicsWindowIOSGLViewController* _viewController;
-        EAGLContext*					_context;
+        EAGLContext*                    _context;
         bool                            _updateContext;
-		
+        
-		bool _ownsWindow, _adaptToDeviceOrientation;
+        bool _ownsWindow, _adaptToDeviceOrientation;
-		
+        
-		float _viewContentScaleFactor;
+        float _viewContentScaleFactor;
-		
+        
 };
 
 }

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)