Fixed: #1020 GLWindow, create, destroy, create would lead to creating two autorelease pools
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1 changed files with 78 additions and 23 deletions
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@ -25,7 +25,7 @@
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#include "cocoa_event_emitter.h"
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#include "cocoa_opengl_view.h"
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// Virtual key codes are only defined here. We still do not need to link carbon.
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// Virtual key codes are only defined here. Still do not need to link carbon.
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// see: http://lists.apple.com/archives/Cocoa-dev/2009/May/msg01180.html
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#include <Carbon/Carbon.h>
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@ -33,6 +33,27 @@
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namespace NL3D { namespace MAC {
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// This cocoa adapter can be used in two environments:
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// First: There is no other code which creates the NSApplication object, so
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// NeL is completely in charge of starting and setting up the application.
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// In this case, the NSAutoreleasePool needed to handle the cocoa style memory
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// management is created by this code.
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// Second: There is already a NSApplication set up. This could be the case if
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// NeL is used for example in a Qt widget. So Qt already created all the
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// NSApplication infrastructure, so it is not set up by this code again!
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//
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// Thats why, the g_pool variable (containing a pointer to the NSAutoreleasePool
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// created by this code) can be used to check whether NeL created the
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// NSApplication infrastructure itself or not.
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//
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// WARNING:
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// Currently the NSApplication infrastructure is automatically created with the
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// call to createWindow(). So if for example Qt already created NSApplication,
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// createWindow() must not be called. Instead, setDisplay() can be provided with
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// a window handle (on Mac OS Cocoa Qt this is a NSView*). In this case, this
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// cocoa adapter will skip the NSApplication setup and embed itself into the
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// provided view running in the already set up application.
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static NSAutoreleasePool* g_pool = nil;
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/*
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TODO move to event emitter class
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@ -40,6 +61,7 @@ static NSAutoreleasePool* g_pool = nil;
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static bool g_emulateRawMode = false;
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static int g_bufferSize[2] = { 0, 0 };
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/// setup an apple style application menu (located at the top bar of the screen)
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static void setupApplicationMenu()
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{
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NSMenu* menu;
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@ -98,6 +120,29 @@ static void setupApplicationMenu()
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[[NSApp mainMenu] addItem:menuItem];
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}
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/// set up the basic NSApplication and NSAutoreleasePool needed for Cocoa
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static bool setupNSApplication()
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{
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// if the pool was already created, return an error
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if(g_pool)
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return false;
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// create a pool, cocoa code would leak memory otherwise
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g_pool = [[NSAutoreleasePool alloc] init];
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// init the application object
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[NSApplication sharedApplication];
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// create the menu in the top screen bar
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setupApplicationMenu();
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// finish the application launching
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[NSApp finishLaunching];
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return true;
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}
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/// setup an open gl view and embed it in the provided parent view
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static void setupGLView(NSView* superview)
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{
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/*
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@ -169,19 +214,12 @@ bool unInit()
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return true;
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}
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/// setup the basic cocoa app infrastructure and create a window
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nlWindow createWindow(const GfxMode& mode)
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{
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// create a pool, cocoa code would leak memory otherwise
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g_pool = [[NSAutoreleasePool alloc] init];
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// init the application object
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[NSApplication sharedApplication];
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// create the menu in the top screen bar
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setupApplicationMenu();
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// tell the application that we are running now
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[NSApp finishLaunching];
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if(!setupNSApplication())
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nlerror("createWindow must not be called before the old window was "
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"destroyed using destroyWindow()!");
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// describe how the window should look like and behave
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unsigned int styleMask = NSTitledWindowMask | NSClosableWindowMask |
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@ -201,7 +239,7 @@ nlWindow createWindow(const GfxMode& mode)
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// enable mouse move events, NeL wants them
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[window setAcceptsMouseMovedEvents:YES];
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// there are no overlapping subviews, so we can use the magical optimization!
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// there are no overlapping subviews, can use the magical optimization :)
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[window useOptimizedDrawing:YES];
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// put the window to the front and make it the key window
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@ -217,6 +255,7 @@ nlWindow createWindow(const GfxMode& mode)
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return view;
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}
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/// destroy the given window and uninitialize the cocoa application
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bool destroyWindow(nlWindow wnd)
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{
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NSView* view = (NSView*)wnd;
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@ -229,10 +268,12 @@ bool destroyWindow(nlWindow wnd)
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// release the pool
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[g_pool release];
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g_pool = nil;
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return true;
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}
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/// set the displays settings, if no win is provided, a new one will be created
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nlWindow setDisplay(nlWindow wnd, const GfxMode& mode, bool show, bool resizeable)
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{
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NSView* view = (NSView*)wnd;
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@ -247,6 +288,7 @@ nlWindow setDisplay(nlWindow wnd, const GfxMode& mode, bool show, bool resizeabl
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return view;
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}
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/// switch between fullscreen and windowed mode
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bool setWindowStyle(nlWindow wnd, bool fullscreen)
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{
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if(wnd == EmptyWindow)
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@ -315,7 +357,7 @@ bool setWindowStyle(nlWindow wnd, bool fullscreen)
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return true;
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}
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/// get the current mode of the screen
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void getCurrentScreenMode(nlWindow wnd, GfxMode& mode)
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{
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NSView* superview = (NSView*)wnd;
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@ -347,6 +389,7 @@ void getCurrentScreenMode(nlWindow wnd, GfxMode& mode)
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}
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}
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/// get the size of the window's content area
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void getWindowSize(nlWindow wnd, uint32 &width, uint32 &height)
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{
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NSView* superview = (NSView*)wnd;
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@ -378,6 +421,7 @@ void getWindowSize(nlWindow wnd, uint32 &width, uint32 &height)
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}
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}
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/// set the size of the window's content area
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void setWindowSize(nlWindow wnd, uint32 width, uint32 height)
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{
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NSView* superview = (NSView*)wnd;
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@ -398,8 +442,8 @@ void setWindowSize(nlWindow wnd, uint32 width, uint32 height)
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}
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else
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{
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// there is only a pool if nel created the window itself assuming that
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// nel is also in charge of the main loop
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// there is only a pool if NeL created the window itself
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// else, the window is not NeL's, so it must not be changed
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if(g_pool)
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{
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NSWindow* window = [view window];
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@ -421,7 +465,7 @@ void setWindowSize(nlWindow wnd, uint32 width, uint32 height)
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g_bufferSize[1] = height;
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}
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/// get the position of the window
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void getWindowPos(nlWindow wnd, sint32 &x, sint32 &y)
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{
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NSView* superview = (NSView*)wnd;
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@ -448,6 +492,7 @@ void getWindowPos(nlWindow wnd, sint32 &x, sint32 &y)
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y = screenRect.size.height - windowRect.size.height - windowRect.origin.y;
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}
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/// set the position of the window
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void setWindowPos(nlWindow wnd, sint32 x, sint32 y)
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{
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NSView* superview = (NSView*)wnd;
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@ -466,6 +511,7 @@ void setWindowPos(nlWindow wnd, sint32 x, sint32 y)
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[window setFrameTopLeftPoint:NSMakePoint(x, y)];
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}
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/// set the windows title (not the title of the application)
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void setWindowTitle(nlWindow wnd, const ucstring& title)
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{
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NSView* superview = (NSView*)wnd;
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@ -480,6 +526,7 @@ void showWindow(bool show)
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nldebug("show: %d - implement me!", show);
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}
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/// make the opengl context the current one
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bool activate(nlWindow wnd)
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{
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NSView* superview = (NSView*)wnd;
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@ -493,6 +540,7 @@ bool activate(nlWindow wnd)
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return true;
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}
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/// flush current back buffer to screen
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void swapBuffers(nlWindow wnd)
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{
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NSView* superview = (NSView*)wnd;
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@ -509,6 +557,7 @@ void setCapture(bool capture)
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// no need to capture
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}
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/// show or hide the mouse cursor
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void showCursor(bool show)
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{
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// Mac OS manages a show/hide counter for the cursor, so hiding the cursor
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@ -535,6 +584,7 @@ void showCursor(bool show)
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nlerror("cannot show / hide cursor");
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}
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/// set the mouse position
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void setMousePos(nlWindow wnd, float x, float y)
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{
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NSView* superview = (NSView*)wnd;
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@ -571,7 +621,8 @@ void setMousePos(nlWindow wnd, float x, float y)
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TODO: this function has to be moved to a more central place to handle key
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mapping on mac x11 as well
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*/
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NLMISC::TKey virtualKeycodeToNelKey(unsigned short keycode)
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/// map from virtual key code to nel internal key code
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static NLMISC::TKey virtualKeycodeToNelKey(unsigned short keycode)
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{
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switch(keycode)
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{
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@ -702,7 +753,8 @@ NLMISC::TKey virtualKeycodeToNelKey(unsigned short keycode)
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TODO: this function has to be moved to a more central place to handle key
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mapping on mac x11 as well
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*/
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NLMISC::TKeyButton modifierFlagsToNelKeyButton(unsigned int modifierFlags)
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/// convert modifier key state to nel internal modifier key state
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static NLMISC::TKeyButton modifierFlagsToNelKeyButton(unsigned int modifierFlags)
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{
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unsigned int buttons = 0;
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if (modifierFlags & NSControlKeyMask) buttons |= NLMISC::ctrlKeyButton;
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@ -711,7 +763,8 @@ NLMISC::TKeyButton modifierFlagsToNelKeyButton(unsigned int modifierFlags)
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return (NLMISC::TKeyButton)buttons;
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}
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bool isTextKeyEvent(NSEvent* event)
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/// check whether a given event represents input text
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static bool isTextKeyEvent(NSEvent* event)
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{
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// if there are no characters provided with this event, it is not a text event
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if([[event characters] length] == 0)
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@ -763,16 +816,18 @@ bool isTextKeyEvent(NSEvent* event)
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return false;
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}
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/// switch between raw mode emulation, see IEventEmitter::emulateMouseRawMode()
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void emulateMouseRawMode(bool enable)
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{
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g_emulateRawMode = enable;
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}
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/// submit events provided by the application to an event server
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void submitEvents(NLMISC::CEventServer& server,
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bool allWindows, NLMISC::CCocoaEventEmitter* eventEmitter)
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{
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// there is only a pool if nel created the window itself assuming that
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// nel is also in charge of the main loop
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// if there is a pool, NeL needs to clean it up
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// otherwise, other code must have created it (for example Qt)
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if(g_pool)
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{
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// cocoa style memory cleanup
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@ -780,7 +835,7 @@ void submitEvents(NLMISC::CEventServer& server,
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g_pool = [[NSAutoreleasePool alloc] init];
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}
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// we break if there was no event to handle
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// break if there was no event to handle
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/* TODO maximum number of events processed in one update? */
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while(true)
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{
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