//========================================================================
// GLFW - An OpenGL framework
// Platform: Carbon/AGL/CGL
// API Version: 3.0
// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2003 Keith Bauer
// Copyright (c) 2003-2010 Camilla Berglund <elmindreda@elmindreda.org>
// Copyright (c) 2006-2007 Robin Leffmann
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
#define _glfwTestModifier( modifierMask, glfwKey ) \
if ( changed & modifierMask ) \
{ \
_glfwInputKey( glfwKey, (modifiers & modifierMask ? GLFW_PRESS : GLFW_RELEASE) ); \
}
//************************************************************************
//**** GLFW internal functions ****
//************************************************************************
static void handleMacModifierChange( UInt32 modifiers )
{
UInt32 changed = modifiers ^ _glfwInput.Modifiers;
// The right *key variants below never actually occur
// There also isn't even a broken right command key constant
_glfwTestModifier( shiftKey, GLFW_KEY_LSHIFT );
_glfwTestModifier( rightShiftKey, GLFW_KEY_RSHIFT );
_glfwTestModifier( controlKey, GLFW_KEY_LCTRL );
_glfwTestModifier( rightControlKey, GLFW_KEY_RCTRL );
_glfwTestModifier( optionKey, GLFW_KEY_LALT );
_glfwTestModifier( rightOptionKey, GLFW_KEY_RALT );
_glfwTestModifier( cmdKey, GLFW_KEY_LSUPER );
_glfwInput.Modifiers = modifiers;
}
static void handleMacKeyChange( UInt32 keyCode, int action )
{
switch ( keyCode )
{
case MAC_KEY_ENTER: _glfwInputKey( GLFW_KEY_ENTER, action); break;
case MAC_KEY_RETURN: _glfwInputKey( GLFW_KEY_KP_ENTER, action); break;
case MAC_KEY_ESC: _glfwInputKey( GLFW_KEY_ESC, action); break;
case MAC_KEY_F1: _glfwInputKey( GLFW_KEY_F1, action); break;
case MAC_KEY_F2: _glfwInputKey( GLFW_KEY_F2, action); break;
case MAC_KEY_F3: _glfwInputKey( GLFW_KEY_F3, action); break;
case MAC_KEY_F4: _glfwInputKey( GLFW_KEY_F4, action); break;
case MAC_KEY_F5: _glfwInputKey( GLFW_KEY_F5, action); break;
case MAC_KEY_F6: _glfwInputKey( GLFW_KEY_F6, action); break;
case MAC_KEY_F7: _glfwInputKey( GLFW_KEY_F7, action); break;
case MAC_KEY_F8: _glfwInputKey( GLFW_KEY_F8, action); break;
case MAC_KEY_F9: _glfwInputKey( GLFW_KEY_F9, action); break;
case MAC_KEY_F10: _glfwInputKey( GLFW_KEY_F10, action); break;
case MAC_KEY_F11: _glfwInputKey( GLFW_KEY_F11, action); break;
case MAC_KEY_F12: _glfwInputKey( GLFW_KEY_F12, action); break;
case MAC_KEY_F13: _glfwInputKey( GLFW_KEY_F13, action); break;
case MAC_KEY_F14: _glfwInputKey( GLFW_KEY_F14, action); break;
case MAC_KEY_F15: _glfwInputKey( GLFW_KEY_F15, action); break;
case MAC_KEY_UP: _glfwInputKey( GLFW_KEY_UP, action); break;
case MAC_KEY_DOWN: _glfwInputKey( GLFW_KEY_DOWN, action); break;
case MAC_KEY_LEFT: _glfwInputKey( GLFW_KEY_LEFT, action); break;
case MAC_KEY_RIGHT: _glfwInputKey( GLFW_KEY_RIGHT, action); break;
case MAC_KEY_TAB: _glfwInputKey( GLFW_KEY_TAB, action); break;
case MAC_KEY_BACKSPACE: _glfwInputKey( GLFW_KEY_BACKSPACE, action); break;
case MAC_KEY_HELP: _glfwInputKey( GLFW_KEY_INSERT, action); break;
case MAC_KEY_DEL: _glfwInputKey( GLFW_KEY_DEL, action); break;
case MAC_KEY_PAGEUP: _glfwInputKey( GLFW_KEY_PAGEUP, action); break;
case MAC_KEY_PAGEDOWN: _glfwInputKey( GLFW_KEY_PAGEDOWN, action); break;
case MAC_KEY_HOME: _glfwInputKey( GLFW_KEY_HOME, action); break;
case MAC_KEY_END: _glfwInputKey( GLFW_KEY_END, action); break;
case MAC_KEY_KP_0: _glfwInputKey( GLFW_KEY_KP_0, action); break;
case MAC_KEY_KP_1: _glfwInputKey( GLFW_KEY_KP_1, action); break;
case MAC_KEY_KP_2: _glfwInputKey( GLFW_KEY_KP_2, action); break;
case MAC_KEY_KP_3: _glfwInputKey( GLFW_KEY_KP_3, action); break;
case MAC_KEY_KP_4: _glfwInputKey( GLFW_KEY_KP_4, action); break;
case MAC_KEY_KP_5: _glfwInputKey( GLFW_KEY_KP_5, action); break;
case MAC_KEY_KP_6: _glfwInputKey( GLFW_KEY_KP_6, action); break;
case MAC_KEY_KP_7: _glfwInputKey( GLFW_KEY_KP_7, action); break;
case MAC_KEY_KP_8: _glfwInputKey( GLFW_KEY_KP_8, action); break;
case MAC_KEY_KP_9: _glfwInputKey( GLFW_KEY_KP_9, action); break;
case MAC_KEY_KP_DIVIDE: _glfwInputKey( GLFW_KEY_KP_DIVIDE, action); break;
case MAC_KEY_KP_MULTIPLY: _glfwInputKey( GLFW_KEY_KP_MULTIPLY, action); break;
case MAC_KEY_KP_SUBTRACT: _glfwInputKey( GLFW_KEY_KP_SUBTRACT, action); break;
case MAC_KEY_KP_ADD: _glfwInputKey( GLFW_KEY_KP_ADD, action); break;
case MAC_KEY_KP_DECIMAL: _glfwInputKey( GLFW_KEY_KP_DECIMAL, action); break;
case MAC_KEY_KP_EQUAL: _glfwInputKey( GLFW_KEY_KP_EQUAL, action); break;
case MAC_KEY_KP_ENTER: _glfwInputKey( GLFW_KEY_KP_ENTER, action); break;
case MAC_KEY_NUMLOCK: _glfwInputKey( GLFW_KEY_KP_NUM_LOCK, action); break;
default:
{
extern void *KCHRPtr;
UInt32 state = 0;
char charCode = (char)KeyTranslate( KCHRPtr, keyCode, &state );
UppercaseText( &charCode, 1, smSystemScript );
_glfwInputKey( (unsigned char)charCode, action );
}
break;
}
}
// The set of event class/kind combinations supported by keyEventHandler
// This is used by installEventHandlers below
static const EventTypeSpec GLFW_KEY_EVENT_TYPES[] =
{
{ kEventClassKeyboard, kEventRawKeyDown },
{ kEventClassKeyboard, kEventRawKeyUp },
{ kEventClassKeyboard, kEventRawKeyRepeat },
{ kEventClassKeyboard, kEventRawKeyModifiersChanged }
};
static OSStatus keyEventHandler( EventHandlerCallRef handlerCallRef,
EventRef event,
void *userData )
{
UInt32 keyCode;
short int keyChar;
UInt32 modifiers;
switch( GetEventKind( event ) )
{
case kEventRawKeyRepeat:
case kEventRawKeyDown:
{
if( GetEventParameter( event,
kEventParamKeyCode,
typeUInt32,
NULL,
sizeof( UInt32 ),
NULL,
&keyCode ) == noErr )
{
handleMacKeyChange( keyCode, GLFW_PRESS );
}
if( GetEventParameter( event,
kEventParamKeyUnicodes,
typeUnicodeText,
NULL,
sizeof(keyChar),
NULL,
&keyChar) == noErr )
{
_glfwInputChar( keyChar, GLFW_PRESS );
}
return noErr;
}
case kEventRawKeyUp:
{
if( GetEventParameter( event,
kEventParamKeyCode,
typeUInt32,
NULL,
sizeof( UInt32 ),
NULL,
&keyCode ) == noErr )
{
handleMacKeyChange( keyCode, GLFW_RELEASE );
}
if( GetEventParameter( event,
kEventParamKeyUnicodes,
typeUnicodeText,
NULL,
sizeof(keyChar),
NULL,
&keyChar) == noErr )
{
_glfwInputChar( keyChar, GLFW_RELEASE );
}
return noErr;
}
case kEventRawKeyModifiersChanged:
{
if( GetEventParameter( event,
kEventParamKeyModifiers,
typeUInt32,
NULL,
sizeof( UInt32 ),
NULL,
&modifiers ) == noErr )
{
handleMacModifierChange( modifiers );
return noErr;
}
}
break;
}
return eventNotHandledErr;
}
// The set of event class/kind combinations supported by mouseEventHandler
// This is used by installEventHandlers below
static const EventTypeSpec GLFW_MOUSE_EVENT_TYPES[] =
{
{ kEventClassMouse, kEventMouseDown },
{ kEventClassMouse, kEventMouseUp },
{ kEventClassMouse, kEventMouseMoved },
{ kEventClassMouse, kEventMouseDragged },
{ kEventClassMouse, kEventMouseWheelMoved },
};
static OSStatus mouseEventHandler( EventHandlerCallRef handlerCallRef,
EventRef event,
void *userData )
{
switch( GetEventKind( event ) )
{
case kEventMouseDown:
{
WindowRef window;
EventRecord oldStyleMacEvent;
ConvertEventRefToEventRecord( event, &oldStyleMacEvent );
if( FindWindow ( oldStyleMacEvent.where, &window ) == inMenuBar )
{
MenuSelect( oldStyleMacEvent.where );
HiliteMenu(0);
return noErr;
}
else
{
EventMouseButton button;
if( GetEventParameter( event,
kEventParamMouseButton,
typeMouseButton,
NULL,
sizeof( EventMouseButton ),
NULL,
&button ) == noErr )
{
button -= kEventMouseButtonPrimary;
if( button <= GLFW_MOUSE_BUTTON_LAST )
{
_glfwInputMouseClick( button + GLFW_MOUSE_BUTTON_LEFT,
GLFW_PRESS );
}
return noErr;
}
}
break;
}
case kEventMouseUp:
{
EventMouseButton button;
if( GetEventParameter( event,
kEventParamMouseButton,
typeMouseButton,
NULL,
sizeof( EventMouseButton ),
NULL,
&button ) == noErr )
{
button -= kEventMouseButtonPrimary;
if( button <= GLFW_MOUSE_BUTTON_LAST )
{
_glfwInputMouseClick( button + GLFW_MOUSE_BUTTON_LEFT,
GLFW_RELEASE );
}
return noErr;
}
break;
}
case kEventMouseMoved:
case kEventMouseDragged:
{
HIPoint mouseLocation;
if( _glfwWin.mouseLock )
{
if( GetEventParameter( event,
kEventParamMouseDelta,
typeHIPoint,
NULL,
sizeof( HIPoint ),
NULL,
&mouseLocation ) != noErr )
{
break;
}
_glfwInput.MousePosX += mouseLocation.x;
_glfwInput.MousePosY += mouseLocation.y;
}
else
{
if( GetEventParameter( event,
kEventParamMouseLocation,
typeHIPoint,
NULL,
sizeof( HIPoint ),
NULL,
&mouseLocation ) != noErr )
{
break;
}
_glfwInput.MousePosX = mouseLocation.x;
_glfwInput.MousePosY = mouseLocation.y;
if( !_glfwWin.fullscreen )
{
Rect content;
GetWindowBounds( _glfwWin.window,
kWindowContentRgn,
&content );
_glfwInput.MousePosX -= content.left;
_glfwInput.MousePosY -= content.top;
}
}
if( _glfwWin.mousePosCallback )
{
_glfwWin.mousePosCallback( _glfwInput.MousePosX,
_glfwInput.MousePosY );
}
break;
}
case kEventMouseWheelMoved:
{
EventMouseWheelAxis axis;
if( GetEventParameter( event,
kEventParamMouseWheelAxis,
typeMouseWheelAxis,
NULL,
sizeof( EventMouseWheelAxis ),
NULL,
&axis) == noErr )
{
long wheelDelta;
if( axis == kEventMouseWheelAxisY &&
GetEventParameter( event,
kEventParamMouseWheelDelta,
typeLongInteger,
NULL,
sizeof( long ),
NULL,
&wheelDelta ) == noErr )
{
_glfwInput.WheelPos += wheelDelta;
if( _glfwWin.mouseWheelCallback )
{
_glfwWin.mouseWheelCallback( _glfwInput.WheelPos );
}
return noErr;
}
}
break;
}
}
return eventNotHandledErr;
}
// The set of event class/kind combinations supported by commandHandler
// This is used by installEventHandlers below
static const EventTypeSpec GLFW_COMMAND_EVENT_TYPES[] =
{
{ kEventClassCommand, kEventCommandProcess }
};
static OSStatus commandHandler( EventHandlerCallRef handlerCallRef,
EventRef event,
void *userData )
{
if( _glfwWin.sysKeysDisabled )
{
// TODO: Give adequate UI feedback that this is the case
return eventNotHandledErr;
}
HICommand command;
if( GetEventParameter( event,
kEventParamDirectObject,
typeHICommand,
NULL,
sizeof( HICommand ),
NULL,
&command ) == noErr )
{
switch( command.commandID )
{
case kHICommandClose:
case kHICommandQuit:
{
// Check if the program wants us to close the window
if( _glfwWin.windowCloseCallback )
{
if( _glfwWin.windowCloseCallback() )
{
glfwCloseWindow();
}
}
else
{
glfwCloseWindow();
}
return noErr;
}
}
}
return eventNotHandledErr;
}
// The set of event class/kind combinations supported by windowEventHandler
// This is used by installEventHandlers below
static const EventTypeSpec GLFW_WINDOW_EVENT_TYPES[] =
{
{ kEventClassWindow, kEventWindowBoundsChanged },
{ kEventClassWindow, kEventWindowClose },
{ kEventClassWindow, kEventWindowDrawContent },
{ kEventClassWindow, kEventWindowActivated },
{ kEventClassWindow, kEventWindowDeactivated },
};
static OSStatus windowEventHandler( EventHandlerCallRef handlerCallRef,
EventRef event,
void *userData )
{
switch( GetEventKind(event) )
{
case kEventWindowBoundsChanged:
{
WindowRef window;
GetEventParameter( event,
kEventParamDirectObject,
typeWindowRef,
NULL,
sizeof(WindowRef),
NULL,
&window );
Rect rect;
GetWindowPortBounds( window, &rect );
if( _glfwWin.width != rect.right ||
_glfwWin.height != rect.bottom )
{
aglUpdateContext( _glfwWin.aglContext );
_glfwWin.width = rect.right;
_glfwWin.height = rect.bottom;
if( _glfwWin.windowSizeCallback )
{
_glfwWin.windowSizeCallback( _glfwWin.width, _glfwWin.height );
}
// Emulate (force) content invalidation
if( _glfwWin.windowRefreshCallback )
{
_glfwWin.windowRefreshCallback();
}
}
break;
}
case kEventWindowClose:
{
// Check if the client wants us to close the window
if( _glfwWin.windowCloseCallback )
{
if( _glfwWin.windowCloseCallback() )
{
glfwCloseWindow();
}
}
else
{
glfwCloseWindow();
}
return noErr;
}
case kEventWindowDrawContent:
{
if( _glfwWin.windowRefreshCallback )
{
_glfwWin.windowRefreshCallback();
}
break;
}
case kEventWindowActivated:
{
_glfwWin.active = GL_TRUE;
break;
}
case kEventWindowDeactivated:
{
_glfwWin.active = GL_FALSE;
_glfwInputDeactivation();
break;
}
}
return eventNotHandledErr;
}
static int installEventHandlers( void )
{
OSStatus error;
_glfwWin.mouseUPP = NewEventHandlerUPP( mouseEventHandler );
error = InstallEventHandler( GetApplicationEventTarget(),
_glfwWin.mouseUPP,
GetEventTypeCount( GLFW_MOUSE_EVENT_TYPES ),
GLFW_MOUSE_EVENT_TYPES,
NULL,
NULL );
if( error != noErr )
{
fprintf( stderr, "Failed to install Carbon application mouse event handler\n" );
return GL_FALSE;
}
_glfwWin.commandUPP = NewEventHandlerUPP( commandHandler );
error = InstallEventHandler( GetApplicationEventTarget(),
_glfwWin.commandUPP,
GetEventTypeCount( GLFW_COMMAND_EVENT_TYPES ),
GLFW_COMMAND_EVENT_TYPES,
NULL,
NULL );
if( error != noErr )
{
fprintf( stderr, "Failed to install Carbon application command event handler\n" );
return GL_FALSE;
}
_glfwWin.keyboardUPP = NewEventHandlerUPP( keyEventHandler );
error = InstallEventHandler( GetApplicationEventTarget(),
_glfwWin.keyboardUPP,
GetEventTypeCount( GLFW_KEY_EVENT_TYPES ),
GLFW_KEY_EVENT_TYPES,
NULL,
NULL );
if( error != noErr )
{
fprintf( stderr, "Failed to install Carbon application key event handler\n" );
return GL_FALSE;
}
return GL_TRUE;
}
//************************************************************************
//**** Platform implementation functions ****
//************************************************************************
#define _setAGLAttribute( aglAttributeName, AGLparameter ) \
if ( AGLparameter != 0 ) \
{ \
AGLpixelFormatAttributes[numAGLAttrs++] = aglAttributeName; \
AGLpixelFormatAttributes[numAGLAttrs++] = AGLparameter; \
}
#define _setCGLAttribute( cglAttributeName, CGLparameter ) \
if ( CGLparameter != 0 ) \
{ \
CGLpixelFormatAttributes[ numCGLAttrs++ ] = cglAttributeName; \
CGLpixelFormatAttributes[ numCGLAttrs++ ] = CGLparameter; \
}
//========================================================================
// Here is where the window is created, and
// the OpenGL rendering context is created
//========================================================================
int _glfwPlatformOpenWindow( int width, int height,
const _GLFWwndconfig *wndconfig,
const _GLFWfbconfig *fbconfig )
{
OSStatus error;
unsigned int windowAttributes;
ProcessSerialNumber psn;
// TODO: Break up this function!
_glfwWin.windowUPP = NULL;
_glfwWin.mouseUPP = NULL;
_glfwWin.keyboardUPP = NULL;
_glfwWin.commandUPP = NULL;
_glfwWin.window = NULL;
_glfwWin.aglContext = NULL;
_glfwWin.aglPixelFormat = NULL;
_glfwWin.cglContext = NULL;
_glfwWin.cglPixelFormat = NULL;
_glfwWin.refreshRate = wndconfig->refreshRate;
// Fail if OpenGL 3.0 or above was requested
if( wndconfig->glMajor > 2 )
{
fprintf( stderr, "OpenGL 3.0+ is not yet supported on Mac OS X\n" );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
if( _glfwLibrary.Unbundled )
{
if( GetCurrentProcess( &psn ) != noErr )
{
fprintf( stderr, "Failed to get the process serial number\n" );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
if( TransformProcessType( &psn, kProcessTransformToForegroundApplication ) != noErr )
{
fprintf( stderr, "Failed to become a foreground application\n" );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
if( wndconfig->mode == GLFW_FULLSCREEN )
{
if( SetFrontProcess( &psn ) != noErr )
{
fprintf( stderr, "Failed to become the front process\n" );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
}
}
if( !installEventHandlers() )
{
fprintf( stderr,
"Failed to install Carbon application event handlers\n" );
_glfwPlatformTerminate();
return GL_FALSE;
}
// Windowed or fullscreen; AGL or CGL? Quite the mess...
// AGL appears to be the only choice for attaching OpenGL contexts to
// Carbon windows, but it leaves the user no control over fullscreen
// mode stretching. Solution: AGL for windowed, CGL for fullscreen.
if( wndconfig->mode == GLFW_WINDOW )
{
// create AGL pixel format attribute list
GLint AGLpixelFormatAttributes[256];
int numAGLAttrs = 0;
AGLpixelFormatAttributes[numAGLAttrs++] = AGL_RGBA;
AGLpixelFormatAttributes[numAGLAttrs++] = AGL_DOUBLEBUFFER;
AGLpixelFormatAttributes[numAGLAttrs++] = AGL_CLOSEST_POLICY;
if( fbconfig->stereo )
{
AGLpixelFormatAttributes[numAGLAttrs++] = AGL_STEREO;
}
_setAGLAttribute( AGL_AUX_BUFFERS, fbconfig->auxBuffers);
_setAGLAttribute( AGL_RED_SIZE, fbconfig->redBits );
_setAGLAttribute( AGL_GREEN_SIZE, fbconfig->greenBits );
_setAGLAttribute( AGL_BLUE_SIZE, fbconfig->blueBits );
_setAGLAttribute( AGL_ALPHA_SIZE, fbconfig->alphaBits );
_setAGLAttribute( AGL_DEPTH_SIZE, fbconfig->depthBits );
_setAGLAttribute( AGL_STENCIL_SIZE, fbconfig->stencilBits );
_setAGLAttribute( AGL_ACCUM_RED_SIZE, fbconfig->accumRedBits );
_setAGLAttribute( AGL_ACCUM_GREEN_SIZE, fbconfig->accumGreenBits );
_setAGLAttribute( AGL_ACCUM_BLUE_SIZE, fbconfig->accumBlueBits );
_setAGLAttribute( AGL_ACCUM_ALPHA_SIZE, fbconfig->accumAlphaBits );
if( fbconfig->samples > 1 )
{
_setAGLAttribute( AGL_SAMPLE_BUFFERS_ARB, 1 );
_setAGLAttribute( AGL_SAMPLES_ARB, fbconfig->samples );
AGLpixelFormatAttributes[numAGLAttrs++] = AGL_NO_RECOVERY;
}
AGLpixelFormatAttributes[numAGLAttrs++] = AGL_NONE;
// create pixel format descriptor
AGLDevice mainMonitor = GetMainDevice();
_glfwWin.aglPixelFormat = aglChoosePixelFormat( &mainMonitor,
1,
AGLpixelFormatAttributes );
if( _glfwWin.aglPixelFormat == NULL )
{
fprintf( stderr,
"Failed to choose AGL pixel format: %s\n",
aglErrorString( aglGetError() ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// create AGL context
_glfwWin.aglContext = aglCreateContext( _glfwWin.aglPixelFormat, NULL );
if( _glfwWin.aglContext == NULL )
{
fprintf( stderr,
"Failed to create AGL context: %s\n",
aglErrorString( aglGetError() ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// create window
Rect windowContentBounds;
windowContentBounds.left = 0;
windowContentBounds.top = 0;
windowContentBounds.right = width;
windowContentBounds.bottom = height;
windowAttributes = ( kWindowCloseBoxAttribute |
kWindowCollapseBoxAttribute |
kWindowStandardHandlerAttribute );
if( wndconfig->windowNoResize )
{
windowAttributes |= kWindowLiveResizeAttribute;
}
else
{
windowAttributes |= ( kWindowFullZoomAttribute |
kWindowResizableAttribute );
}
error = CreateNewWindow( kDocumentWindowClass,
windowAttributes,
&windowContentBounds,
&( _glfwWin.window ) );
if( ( error != noErr ) || ( _glfwWin.window == NULL ) )
{
fprintf( stderr, "Failed to create Carbon window\n" );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
_glfwWin.windowUPP = NewEventHandlerUPP( windowEventHandler );
error = InstallWindowEventHandler( _glfwWin.window,
_glfwWin.windowUPP,
GetEventTypeCount( GLFW_WINDOW_EVENT_TYPES ),
GLFW_WINDOW_EVENT_TYPES,
NULL,
NULL );
if( error != noErr )
{
fprintf( stderr, "Failed to install Carbon window event handler\n" );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// Don't care if we fail here
(void)SetWindowTitleWithCFString( _glfwWin.window, CFSTR( "GLFW Window" ) );
(void)RepositionWindow( _glfwWin.window,
NULL,
kWindowCenterOnMainScreen );
if( !aglSetDrawable( _glfwWin.aglContext,
GetWindowPort( _glfwWin.window ) ) )
{
fprintf( stderr,
"Failed to set the AGL context as the Carbon window drawable: %s\n",
aglErrorString( aglGetError() ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// Make OpenGL context current
if( !aglSetCurrentContext( _glfwWin.aglContext ) )
{
fprintf( stderr,
"Failed to make AGL context current: %s\n",
aglErrorString( aglGetError() ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
ShowWindow( _glfwWin.window );
}
else
{
CGDisplayErr cgErr;
CGLError cglErr;
CFDictionaryRef optimalMode;
GLint numCGLvs = 0;
CGLPixelFormatAttribute CGLpixelFormatAttributes[64];
int numCGLAttrs = 0;
// variables for enumerating color depths
GLint rgbColorDepth;
// CGL pixel format attributes
_setCGLAttribute( kCGLPFADisplayMask,
CGDisplayIDToOpenGLDisplayMask( kCGDirectMainDisplay ) );
if( fbconfig->stereo )
{
CGLpixelFormatAttributes[ numCGLAttrs++ ] = kCGLPFAStereo;
}
if( fbconfig->samples > 1 )
{
_setCGLAttribute( kCGLPFASamples, (CGLPixelFormatAttribute)fbconfig->samples );
_setCGLAttribute( kCGLPFASampleBuffers, (CGLPixelFormatAttribute)1 );
CGLpixelFormatAttributes[ numCGLAttrs++ ] = kCGLPFANoRecovery;
}
CGLpixelFormatAttributes[ numCGLAttrs++ ] = kCGLPFAFullScreen;
CGLpixelFormatAttributes[ numCGLAttrs++ ] = kCGLPFADoubleBuffer;
CGLpixelFormatAttributes[ numCGLAttrs++ ] = kCGLPFAAccelerated;
CGLpixelFormatAttributes[ numCGLAttrs++ ] = kCGLPFANoRecovery;
CGLpixelFormatAttributes[ numCGLAttrs++ ] = kCGLPFAMinimumPolicy;
_setCGLAttribute( kCGLPFAAccumSize,
(CGLPixelFormatAttribute)( fbconfig->accumRedBits \
+ fbconfig->accumGreenBits \
+ fbconfig->accumBlueBits \
+ fbconfig->accumAlphaBits ) );
_setCGLAttribute( kCGLPFAAlphaSize, (CGLPixelFormatAttribute)fbconfig->alphaBits );
_setCGLAttribute( kCGLPFADepthSize, (CGLPixelFormatAttribute)fbconfig->depthBits );
_setCGLAttribute( kCGLPFAStencilSize, (CGLPixelFormatAttribute)fbconfig->stencilBits );
_setCGLAttribute( kCGLPFAAuxBuffers, (CGLPixelFormatAttribute)fbconfig->auxBuffers );
CGLpixelFormatAttributes[ numCGLAttrs++ ] = (CGLPixelFormatAttribute)NULL;
// create a suitable pixel format with above attributes..
cglErr = CGLChoosePixelFormat( CGLpixelFormatAttributes,
&_glfwWin.cglPixelFormat,
&numCGLvs );
if( cglErr != kCGLNoError )
{
fprintf( stderr,
"Failed to choose CGL pixel format: %s\n",
CGLErrorString( cglErr ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// ..and create a rendering context using that pixel format
cglErr = CGLCreateContext( _glfwWin.cglPixelFormat, NULL, &_glfwWin.cglContext );
if( cglErr != kCGLNoError )
{
fprintf( stderr,
"Failed to create CGL context: %s\n",
CGLErrorString( cglErr ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// enumerate depth of RGB channels - unlike AGL, CGL works with
// a single parameter reflecting the full depth of the frame buffer
(void)CGLDescribePixelFormat( _glfwWin.cglPixelFormat,
0,
kCGLPFAColorSize,
&rgbColorDepth );
// capture the display for our application
cgErr = CGCaptureAllDisplays();
if( cgErr != kCGErrorSuccess )
{
fprintf( stderr,
"Failed to capture Core Graphics displays\n");
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// find closest matching NON-STRETCHED display mode..
optimalMode = CGDisplayBestModeForParametersAndRefreshRateWithProperty(
kCGDirectMainDisplay,
rgbColorDepth,
width,
height,
wndconfig->refreshRate,
NULL,
NULL );
if( optimalMode == NULL )
{
fprintf( stderr,
"Failed to retrieve Core Graphics display mode\n");
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// ..and switch to that mode
cgErr = CGDisplaySwitchToMode( kCGDirectMainDisplay, optimalMode );
if( cgErr != kCGErrorSuccess )
{
fprintf( stderr,
"Failed to switch to Core Graphics display mode\n");
_glfwPlatformCloseWindow();
return GL_FALSE;
}
// switch to our OpenGL context, and bring it up fullscreen
cglErr = CGLSetCurrentContext( _glfwWin.cglContext );
if( cglErr != kCGLNoError )
{
fprintf( stderr,
"Failed to make CGL context current: %s\n",
CGLErrorString( cglErr ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
cglErr = CGLSetFullScreen( _glfwWin.cglContext );
if( cglErr != kCGLNoError )
{
fprintf( stderr,
"Failed to set CGL fullscreen mode: %s\n",
CGLErrorString( cglErr ) );
_glfwPlatformCloseWindow();
return GL_FALSE;
}
}
return GL_TRUE;
}
//========================================================================
// Properly kill the window/video display
//========================================================================
void _glfwPlatformCloseWindow( void )
{
if( _glfwWin.mouseUPP != NULL )
{
DisposeEventHandlerUPP( _glfwWin.mouseUPP );
_glfwWin.mouseUPP = NULL;
}
if( _glfwWin.commandUPP != NULL )
{
DisposeEventHandlerUPP( _glfwWin.commandUPP );
_glfwWin.commandUPP = NULL;
}
if( _glfwWin.keyboardUPP != NULL )
{
DisposeEventHandlerUPP( _glfwWin.keyboardUPP );
_glfwWin.keyboardUPP = NULL;
}
if( _glfwWin.windowUPP != NULL )
{
DisposeEventHandlerUPP( _glfwWin.windowUPP );
_glfwWin.windowUPP = NULL;
}
if( _glfwWin.fullscreen )
{
if( _glfwWin.cglContext != NULL )
{
CGLSetCurrentContext( NULL );
CGLClearDrawable( _glfwWin.cglContext );
CGLDestroyContext( _glfwWin.cglContext );
CGReleaseAllDisplays();
_glfwWin.cglContext = NULL;
}
if( _glfwWin.cglPixelFormat != NULL )
{
CGLDestroyPixelFormat( _glfwWin.cglPixelFormat );
_glfwWin.cglPixelFormat = NULL;
}
}
else
{
if( _glfwWin.aglContext != NULL )
{
aglSetCurrentContext( NULL );
aglSetDrawable( _glfwWin.aglContext, NULL );
aglDestroyContext( _glfwWin.aglContext );
_glfwWin.aglContext = NULL;
}
if( _glfwWin.aglPixelFormat != NULL )
{
aglDestroyPixelFormat( _glfwWin.aglPixelFormat );
_glfwWin.aglPixelFormat = NULL;
}
}
if( _glfwWin.window != NULL )
{
ReleaseWindow( _glfwWin.window );
_glfwWin.window = NULL;
}
}
//========================================================================
// Set the window title
//========================================================================
void _glfwPlatformSetWindowTitle( const char *title )
{
CFStringRef windowTitle;
if( !_glfwWin.fullscreen )
{
windowTitle = CFStringCreateWithCString( kCFAllocatorDefault,
title,
kCFStringEncodingISOLatin1 );
(void)SetWindowTitleWithCFString( _glfwWin.window, windowTitle );
CFRelease( windowTitle );
}
}
//========================================================================
// Set the window size
//========================================================================
void _glfwPlatformSetWindowSize( int width, int height )
{
if( !_glfwWin.fullscreen )
{
SizeWindow( _glfwWin.window, width, height, TRUE );
}
}
//========================================================================
// Set the window position
//========================================================================
void _glfwPlatformSetWindowPos( int x, int y )
{
if( !_glfwWin.fullscreen )
{
MoveWindow( _glfwWin.window, x, y, FALSE );
}
}
//========================================================================
// Window iconification
//========================================================================
void _glfwPlatformIconifyWindow( void )
{
if( !_glfwWin.fullscreen )
{
(void)CollapseWindow( _glfwWin.window, TRUE );
}
}
//========================================================================
// Window un-iconification
//========================================================================
void _glfwPlatformRestoreWindow( void )
{
if( !_glfwWin.fullscreen )
{
(void)CollapseWindow( _glfwWin.window, FALSE );
}
}
//========================================================================
// Swap buffers (double-buffering) and poll any new events
//========================================================================
void _glfwPlatformSwapBuffers( void )
{
if( _glfwWin.fullscreen )
{
CGLFlushDrawable( _glfwWin.cglContext );
}
else
{
aglSwapBuffers( _glfwWin.aglContext );
}
}
//========================================================================
// Set double buffering swap interval
//========================================================================
void _glfwPlatformSwapInterval( int interval )
{
GLint AGLparameter = interval;
// CGL doesn't seem to like intervals other than 0 (vsync off) or 1 (vsync on)
long CGLparameter = ( interval ? 1 : 0 );
if( _glfwWin.fullscreen )
{
// Don't care if we fail here..
(void)CGLSetParameter( _glfwWin.cglContext,
kCGLCPSwapInterval,
(GLint*) &CGLparameter );
}
else
{
// ..or here
(void)aglSetInteger( _glfwWin.aglContext,
AGL_SWAP_INTERVAL,
&AGLparameter );
}
}
//========================================================================
// Read back framebuffer parameters from the context
//========================================================================
#define _getAGLAttribute( aglAttributeName, variableName ) \
{ \
GLint aglValue; \
(void)aglDescribePixelFormat( _glfwWin.aglPixelFormat, aglAttributeName, &aglValue ); \
variableName = aglValue; \
}
#define _getCGLAttribute( cglAttributeName, variableName ) \
{ \
GLint cglValue; \
(void)CGLDescribePixelFormat( _glfwWin.cglPixelFormat, 0, cglAttributeName, &cglValue ); \
variableName = cglValue; \
}
void _glfwPlatformRefreshWindowParams( void )
{
GLint rgbColorDepth;
GLint rgbaAccumDepth = 0;
GLint rgbChannelDepth = 0;
if( _glfwWin.fullscreen )
{
_getCGLAttribute( kCGLPFAAccelerated, _glfwWin.accelerated );
_getCGLAttribute( kCGLPFAAlphaSize, _glfwWin.alphaBits );
_getCGLAttribute( kCGLPFADepthSize, _glfwWin.depthBits );
_getCGLAttribute( kCGLPFAStencilSize, _glfwWin.stencilBits );
_getCGLAttribute( kCGLPFAAuxBuffers, _glfwWin.auxBuffers );
_getCGLAttribute( kCGLPFAStereo, _glfwWin.stereo );
_getCGLAttribute( kCGLPFASamples, _glfwWin.samples );
// Enumerate depth of RGB channels - unlike AGL, CGL works with
// a single parameter reflecting the full depth of the frame buffer
(void)CGLDescribePixelFormat( _glfwWin.cglPixelFormat,
0,
kCGLPFAColorSize,
&rgbColorDepth );
if( rgbColorDepth == 24 || rgbColorDepth == 32 )
{
rgbChannelDepth = 8;
}
if( rgbColorDepth == 16 )
{
rgbChannelDepth = 5;
}
_glfwWin.redBits = rgbChannelDepth;
_glfwWin.greenBits = rgbChannelDepth;
_glfwWin.blueBits = rgbChannelDepth;
// Get pixel depth of accumulator - I haven't got the slightest idea
// how this number conforms to any other channel depth than 8 bits,
// so this might end up giving completely knackered results...
_getCGLAttribute( kCGLPFAColorSize, rgbaAccumDepth );
if( rgbaAccumDepth == 32 )
{
rgbaAccumDepth = 8;
}
_glfwWin.accumRedBits = rgbaAccumDepth;
_glfwWin.accumGreenBits = rgbaAccumDepth;
_glfwWin.accumBlueBits = rgbaAccumDepth;
_glfwWin.accumAlphaBits = rgbaAccumDepth;
}
else
{
_getAGLAttribute( AGL_ACCELERATED, _glfwWin.accelerated );
_getAGLAttribute( AGL_RED_SIZE, _glfwWin.redBits );
_getAGLAttribute( AGL_GREEN_SIZE, _glfwWin.greenBits );
_getAGLAttribute( AGL_BLUE_SIZE, _glfwWin.blueBits );
_getAGLAttribute( AGL_ALPHA_SIZE, _glfwWin.alphaBits );
_getAGLAttribute( AGL_DEPTH_SIZE, _glfwWin.depthBits );
_getAGLAttribute( AGL_STENCIL_SIZE, _glfwWin.stencilBits );
_getAGLAttribute( AGL_ACCUM_RED_SIZE, _glfwWin.accumRedBits );
_getAGLAttribute( AGL_ACCUM_GREEN_SIZE, _glfwWin.accumGreenBits );
_getAGLAttribute( AGL_ACCUM_BLUE_SIZE, _glfwWin.accumBlueBits );
_getAGLAttribute( AGL_ACCUM_ALPHA_SIZE, _glfwWin.accumAlphaBits );
_getAGLAttribute( AGL_AUX_BUFFERS, _glfwWin.auxBuffers );
_getAGLAttribute( AGL_STEREO, _glfwWin.stereo );
_getAGLAttribute( AGL_SAMPLES_ARB, _glfwWin.samples );
}
}
//========================================================================
// Poll for new window and input events
//========================================================================
void _glfwPlatformPollEvents( void )
{
EventRef event;
EventTargetRef eventDispatcher = GetEventDispatcherTarget();
while ( ReceiveNextEvent( 0, NULL, 0.0, TRUE, &event ) == noErr )
{
SendEventToEventTarget( event, eventDispatcher );
ReleaseEvent( event );
}
}
//========================================================================
// Wait for new window and input events
//========================================================================
void _glfwPlatformWaitEvents( void )
{
EventRef event;
// Wait for new events
ReceiveNextEvent( 0, NULL, kEventDurationForever, FALSE, &event );
// Process the new events
_glfwPlatformPollEvents();
}
//========================================================================
// Hide mouse cursor (lock it)
//========================================================================
void _glfwPlatformHideMouseCursor( void )
{
CGDisplayHideCursor( kCGDirectMainDisplay );
CGAssociateMouseAndMouseCursorPosition( false );
}
//========================================================================
// Show mouse cursor (unlock it)
//========================================================================
void _glfwPlatformShowMouseCursor( void )
{
CGDisplayShowCursor( kCGDirectMainDisplay );
CGAssociateMouseAndMouseCursorPosition( true );
}
//========================================================================
// Set physical mouse cursor position
//========================================================================
void _glfwPlatformSetMouseCursorPos( int x, int y )
{
Rect content;
if( _glfwWin.fullscreen )
{
CGDisplayMoveCursorToPoint( kCGDirectMainDisplay,
CGPointMake( x, y ) );
}
else
{
GetWindowBounds(_glfwWin.window, kWindowContentRgn, &content);
_glfwInput.MousePosX = x + content.left;
_glfwInput.MousePosY = y + content.top;
CGDisplayMoveCursorToPoint( kCGDirectMainDisplay,
CGPointMake( _glfwInput.MousePosX,
_glfwInput.MousePosY ) );
}
}