+++ /dev/null
-/*
- * freeglut_init.c
- *
- * Various freeglut initialization functions.
- *
- * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
- * Written by Pawel W. Olszta, <olszta@sourceforge.net>
- * Creation date: Thu Dec 2 1999
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#define FREEGLUT_BUILDING_LIB
-#include <GL/freeglut.h>
-#include "freeglut_internal.h"
-
-#if TARGET_HOST_POSIX_X11
-#include <limits.h> /* LONG_MAX */
-#endif
-
-/*
- * TODO BEFORE THE STABLE RELEASE:
- *
- * fgDeinitialize() -- Win32's OK, X11 needs the OS-specific
- * deinitialization done
- * glutInitDisplayString() -- display mode string parsing
- *
- * Wouldn't it be cool to use gettext() for error messages? I just love
- * bash saying "nie znaleziono pliku" instead of "file not found" :)
- * Is gettext easily portable?
- */
-
-/* -- GLOBAL VARIABLES ----------------------------------------------------- */
-
-/*
- * A structure pointed by g_pDisplay holds all information
- * regarding the display, screen, root window etc.
- */
-SFG_Display fgDisplay;
-
-/*
- * The settings for the current freeglut session
- */
-SFG_State fgState = { { -1, -1, GL_FALSE }, /* Position */
- { 300, 300, GL_TRUE }, /* Size */
- GLUT_RGBA | GLUT_SINGLE | GLUT_DEPTH, /* DisplayMode */
- GL_FALSE, /* Initialised */
- GLUT_TRY_DIRECT_CONTEXT, /* DirectContext */
- GL_FALSE, /* ForceIconic */
- GL_FALSE, /* UseCurrentContext */
- GL_FALSE, /* GLDebugSwitch */
- GL_FALSE, /* XSyncSwitch */
- GLUT_KEY_REPEAT_ON, /* KeyRepeat */
- INVALID_MODIFIERS, /* Modifiers */
- 0, /* FPSInterval */
- 0, /* SwapCount */
- 0, /* SwapTime */
- 0, /* Time */
- { NULL, NULL }, /* Timers */
- { NULL, NULL }, /* FreeTimers */
- NULL, /* IdleCallback */
- 0, /* ActiveMenus */
- NULL, /* MenuStateCallback */
- NULL, /* MenuStatusCallback */
- { 640, 480, GL_TRUE }, /* GameModeSize */
- 16, /* GameModeDepth */
- 72, /* GameModeRefresh */
- GLUT_ACTION_EXIT, /* ActionOnWindowClose */
- GLUT_EXEC_STATE_INIT, /* ExecState */
- NULL, /* ProgramName */
- GL_FALSE, /* JoysticksInitialised */
- 0, /* NumActiveJoysticks */
- GL_FALSE, /* InputDevsInitialised */
- 0, /* MouseWheelTicks */
- 1, /* AuxiliaryBufferNumber */
- 4, /* SampleNumber */
- 1, /* MajorVersion */
- 0, /* MinorVersion */
- 0, /* ContextFlags */
- 0, /* ContextProfile */
- NULL, /* ErrorFunc */
- NULL /* WarningFunc */
-};
-
-
-/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
-
-#if TARGET_HOST_POSIX_X11
-
-/* Return the atom associated with "name". */
-static Atom fghGetAtom(const char * name)
-{
- return XInternAtom(fgDisplay.Display, name, False);
-}
-
-/*
- * Check if "property" is set on "window". The property's values are returned
- * through "data". If the property is set and is of type "type", return the
- * number of elements in "data". Return zero otherwise. In both cases, use
- * "Xfree()" to free "data".
- */
-static int fghGetWindowProperty(Window window,
- Atom property,
- Atom type,
- unsigned char ** data)
-{
- /*
- * Caller always has to use "Xfree()" to free "data", since
- * "XGetWindowProperty() always allocates one extra byte in prop_return
- * [i.e. "data"] (even if the property is zero length) [..]".
- */
-
- int status; /* Returned by "XGetWindowProperty". */
-
- Atom type_returned;
- int temp_format; /* Not used. */
- unsigned long number_of_elements;
- unsigned long temp_bytes_after; /* Not used. */
-
-
- status = XGetWindowProperty(fgDisplay.Display,
- window,
- property,
- 0,
- LONG_MAX,
- False,
- type,
- &type_returned,
- &temp_format,
- &number_of_elements,
- &temp_bytes_after,
- data);
-
- FREEGLUT_INTERNAL_ERROR_EXIT(status == Success,
- "XGetWindowProperty failled",
- "fghGetWindowProperty");
-
- if (type_returned != type)
- {
- number_of_elements = 0;
- }
-
- return number_of_elements;
-}
-
-/* Check if the window manager is NET WM compliant. */
-static int fghNetWMSupported(void)
-{
- Atom wm_check;
- Window ** window_ptr_1;
-
- int number_of_windows;
- int net_wm_supported;
-
-
- net_wm_supported = 0;
-
- wm_check = fghGetAtom("_NET_SUPPORTING_WM_CHECK");
- window_ptr_1 = malloc(sizeof(Window *));
-
- /*
- * Check that the window manager has set this property on the root window.
- * The property must be the ID of a child window.
- */
- number_of_windows = fghGetWindowProperty(fgDisplay.RootWindow,
- wm_check,
- XA_WINDOW,
- (unsigned char **) window_ptr_1);
- if (number_of_windows == 1)
- {
- Window ** window_ptr_2;
-
- window_ptr_2 = malloc(sizeof(Window *));
-
- /* Check that the window has the same property set to the same value. */
- number_of_windows = fghGetWindowProperty(**window_ptr_1,
- wm_check,
- XA_WINDOW,
- (unsigned char **) window_ptr_2);
- if ((number_of_windows == 1) && (**window_ptr_1 == **window_ptr_2))
- {
- /* NET WM compliant */
- net_wm_supported = 1;
- }
-
- XFree(*window_ptr_2);
- free(window_ptr_2);
- }
-
- XFree(*window_ptr_1);
- free(window_ptr_1);
-
- return net_wm_supported;
-}
-
-/* Check if "hint" is present in "property" for "window". */
-int fgHintPresent(Window window, Atom property, Atom hint)
-{
- Atom *atoms;
- int number_of_atoms;
- int supported;
- int i;
-
- supported = 0;
-
- number_of_atoms = fghGetWindowProperty(window,
- property,
- XA_ATOM,
- (unsigned char **) &atoms);
- for (i = 0; i < number_of_atoms; i++)
- {
- if (atoms[i] == hint)
- {
- supported = 1;
- break;
- }
- }
-
- XFree(atoms);
- return supported;
-}
-
-#endif /* TARGET_HOST_POSIX_X11 */
-
-
-/*
- * A call to this function should initialize all the display stuff...
- */
-static void fghInitialize( const char* displayName )
-{
-#if TARGET_HOST_POSIX_X11
- fgDisplay.Display = XOpenDisplay( displayName );
-
- if( fgDisplay.Display == NULL )
- fgError( "failed to open display '%s'", XDisplayName( displayName ) );
-
- if( !glXQueryExtension( fgDisplay.Display, NULL, NULL ) )
- fgError( "OpenGL GLX extension not supported by display '%s'",
- XDisplayName( displayName ) );
-
- fgDisplay.Screen = DefaultScreen( fgDisplay.Display );
- fgDisplay.RootWindow = RootWindow(
- fgDisplay.Display,
- fgDisplay.Screen
- );
-
- fgDisplay.ScreenWidth = DisplayWidth(
- fgDisplay.Display,
- fgDisplay.Screen
- );
- fgDisplay.ScreenHeight = DisplayHeight(
- fgDisplay.Display,
- fgDisplay.Screen
- );
-
- fgDisplay.ScreenWidthMM = DisplayWidthMM(
- fgDisplay.Display,
- fgDisplay.Screen
- );
- fgDisplay.ScreenHeightMM = DisplayHeightMM(
- fgDisplay.Display,
- fgDisplay.Screen
- );
-
- fgDisplay.Connection = ConnectionNumber( fgDisplay.Display );
-
- /* Create the window deletion atom */
- fgDisplay.DeleteWindow = fghGetAtom("WM_DELETE_WINDOW");
-
- /* Create the state and full screen atoms */
- fgDisplay.State = None;
- fgDisplay.StateFullScreen = None;
-
- if (fghNetWMSupported())
- {
- const Atom supported = fghGetAtom("_NET_SUPPORTED");
- const Atom state = fghGetAtom("_NET_WM_STATE");
-
- /* Check if the state hint is supported. */
- if (fgHintPresent(fgDisplay.RootWindow, supported, state))
- {
- const Atom full_screen = fghGetAtom("_NET_WM_STATE_FULLSCREEN");
-
- fgDisplay.State = state;
-
- /* Check if the window manager supports full screen. */
- /** Check "_NET_WM_ALLOWED_ACTIONS" on our window instead? **/
- if (fgHintPresent(fgDisplay.RootWindow, supported, full_screen))
- {
- fgDisplay.StateFullScreen = full_screen;
- }
- }
- }
-
-#elif TARGET_HOST_MS_WINDOWS
-
- WNDCLASS wc;
- ATOM atom;
-
- /* What we need to do is to initialize the fgDisplay global structure here. */
- fgDisplay.Instance = GetModuleHandle( NULL );
- fgDisplay.DisplayName= displayName ? strdup(displayName) : 0 ;
- atom = GetClassInfo( fgDisplay.Instance, _T("FREEGLUT"), &wc );
-
- if( atom == 0 )
- {
- ZeroMemory( &wc, sizeof(WNDCLASS) );
-
- /*
- * Each of the windows should have its own device context, and we
- * want redraw events during Vertical and Horizontal Resizes by
- * the user.
- *
- * XXX Old code had "| CS_DBCLCKS" commented out. Plans for the
- * XXX future? Dead-end idea?
- */
- wc.lpfnWndProc = fgWindowProc;
- wc.cbClsExtra = 0;
- wc.cbWndExtra = 0;
- wc.hInstance = fgDisplay.Instance;
- wc.hIcon = LoadIcon( fgDisplay.Instance, _T("GLUT_ICON") );
-
-#if defined(_WIN32_WCE)
- wc.style = CS_HREDRAW | CS_VREDRAW;
-#else
- wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
- if (!wc.hIcon)
- wc.hIcon = LoadIcon( NULL, IDI_WINLOGO );
-#endif
-
- wc.hCursor = LoadCursor( NULL, IDC_ARROW );
- wc.hbrBackground = NULL;
- wc.lpszMenuName = NULL;
- wc.lpszClassName = _T("FREEGLUT");
-
- /* Register the window class */
- atom = RegisterClass( &wc );
- FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Not Registered", "fghInitialize" );
- }
-
- /* The screen dimensions can be obtained via GetSystemMetrics() calls */
- fgDisplay.ScreenWidth = GetSystemMetrics( SM_CXSCREEN );
- fgDisplay.ScreenHeight = GetSystemMetrics( SM_CYSCREEN );
-
- {
- HWND desktop = GetDesktopWindow( );
- HDC context = GetDC( desktop );
-
- fgDisplay.ScreenWidthMM = GetDeviceCaps( context, HORZSIZE );
- fgDisplay.ScreenHeightMM = GetDeviceCaps( context, VERTSIZE );
-
- ReleaseDC( desktop, context );
- }
- /* If we have a DisplayName try to use it for metrics */
- if( fgDisplay.DisplayName )
- {
- HDC context = CreateDC(fgDisplay.DisplayName,0,0,0);
- if( context )
- {
- fgDisplay.ScreenWidth = GetDeviceCaps( context, HORZRES );
- fgDisplay.ScreenHeight = GetDeviceCaps( context, VERTRES );
- fgDisplay.ScreenWidthMM = GetDeviceCaps( context, HORZSIZE );
- fgDisplay.ScreenHeightMM = GetDeviceCaps( context, VERTSIZE );
- DeleteDC(context);
- }
- else
- fgWarning("fghInitialize: "
- "CreateDC failed, Screen size info may be incorrect\n"
- "This is quite likely caused by a bad '-display' parameter");
-
- }
- /* Set the timer granularity to 1 ms */
- timeBeginPeriod ( 1 );
-
-#endif
-
- fgState.Initialised = GL_TRUE;
-
- /* Avoid registering atexit callback on Win32 as it results in an access
- * violation due to calling into a module which has been unloaded.
- * Any cleanup isn't needed on Windows anyway, the OS takes care of it.c
- * see: http://blogs.msdn.com/b/oldnewthing/archive/2012/01/05/10253268.aspx
- */
-#if ( TARGET_HOST_MS_WINDOWS == 0 )
- atexit(fgDeinitialize);
-#endif
-
- /* InputDevice uses GlutTimerFunc(), so fgState.Initialised must be TRUE */
- fgInitialiseInputDevices();
-}
-
-/*
- * Perform the freeglut deinitialization...
- */
-void fgDeinitialize( void )
-{
- SFG_Timer *timer;
-
- if( !fgState.Initialised )
- {
- return;
- }
-
- /* If we're in game mode, we want to leave game mode */
- if( fgStructure.GameModeWindow ) {
- glutLeaveGameMode();
- }
-
- /* If there was a menu created, destroy the rendering context */
- if( fgStructure.MenuContext )
- {
-#if TARGET_HOST_POSIX_X11
- /* Note that the MVisualInfo is not owned by the MenuContext! */
- glXDestroyContext( fgDisplay.Display, fgStructure.MenuContext->MContext );
-#endif
- free( fgStructure.MenuContext );
- fgStructure.MenuContext = NULL;
- }
-
- fgDestroyStructure( );
-
- while( ( timer = fgState.Timers.First) )
- {
- fgListRemove( &fgState.Timers, &timer->Node );
- free( timer );
- }
-
- while( ( timer = fgState.FreeTimers.First) )
- {
- fgListRemove( &fgState.FreeTimers, &timer->Node );
- free( timer );
- }
-
-#if !defined(_WIN32_WCE)
- if ( fgState.JoysticksInitialised )
- fgJoystickClose( );
-
- if ( fgState.InputDevsInitialised )
- fgInputDeviceClose( );
-#endif /* !defined(_WIN32_WCE) */
- fgState.JoysticksInitialised = GL_FALSE;
- fgState.InputDevsInitialised = GL_FALSE;
-
- fgState.MouseWheelTicks = 0;
-
- fgState.MajorVersion = 1;
- fgState.MinorVersion = 0;
- fgState.ContextFlags = 0;
- fgState.ContextProfile = 0;
-
- fgState.Initialised = GL_FALSE;
-
- fgState.Position.X = -1;
- fgState.Position.Y = -1;
- fgState.Position.Use = GL_FALSE;
-
- fgState.Size.X = 300;
- fgState.Size.Y = 300;
- fgState.Size.Use = GL_TRUE;
-
- fgState.DisplayMode = GLUT_RGBA | GLUT_SINGLE | GLUT_DEPTH;
-
- fgState.DirectContext = GLUT_TRY_DIRECT_CONTEXT;
- fgState.ForceIconic = GL_FALSE;
- fgState.UseCurrentContext = GL_FALSE;
- fgState.GLDebugSwitch = GL_FALSE;
- fgState.XSyncSwitch = GL_FALSE;
- fgState.ActionOnWindowClose = GLUT_ACTION_EXIT;
- fgState.ExecState = GLUT_EXEC_STATE_INIT;
-
- fgState.KeyRepeat = GLUT_KEY_REPEAT_ON;
- fgState.Modifiers = INVALID_MODIFIERS;
-
- fgState.GameModeSize.X = 640;
- fgState.GameModeSize.Y = 480;
- fgState.GameModeDepth = 16;
- fgState.GameModeRefresh = 72;
-
- fgListInit( &fgState.Timers );
- fgListInit( &fgState.FreeTimers );
-
- fgState.IdleCallback = NULL;
- fgState.MenuStateCallback = ( FGCBMenuState )NULL;
- fgState.MenuStatusCallback = ( FGCBMenuStatus )NULL;
-
- fgState.SwapCount = 0;
- fgState.SwapTime = 0;
- fgState.FPSInterval = 0;
-
- if( fgState.ProgramName )
- {
- free( fgState.ProgramName );
- fgState.ProgramName = NULL;
- }
-
-#if TARGET_HOST_POSIX_X11
-
- /*
- * Make sure all X-client data we have created will be destroyed on
- * display closing
- */
- XSetCloseDownMode( fgDisplay.Display, DestroyAll );
-
- /*
- * Close the display connection, destroying all windows we have
- * created so far
- */
- XCloseDisplay( fgDisplay.Display );
-
-#elif TARGET_HOST_MS_WINDOWS
- if( fgDisplay.DisplayName )
- {
- free( fgDisplay.DisplayName );
- fgDisplay.DisplayName = NULL;
- }
-
- /* Reset the timer granularity */
- timeEndPeriod ( 1 );
-
-#endif
-
- fgState.Initialised = GL_FALSE;
-}
-
-/*
- * Everything inside the following #ifndef is copied from the X sources.
- */
-
-#if TARGET_HOST_MS_WINDOWS
-
-/*
-
-Copyright 1985, 1986, 1987,1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from The Open Group.
-
-*/
-
-#define NoValue 0x0000
-#define XValue 0x0001
-#define YValue 0x0002
-#define WidthValue 0x0004
-#define HeightValue 0x0008
-#define AllValues 0x000F
-#define XNegative 0x0010
-#define YNegative 0x0020
-
-/*
- * XParseGeometry parses strings of the form
- * "=<width>x<height>{+-}<xoffset>{+-}<yoffset>", where
- * width, height, xoffset, and yoffset are unsigned integers.
- * Example: "=80x24+300-49"
- * The equal sign is optional.
- * It returns a bitmask that indicates which of the four values
- * were actually found in the string. For each value found,
- * the corresponding argument is updated; for each value
- * not found, the corresponding argument is left unchanged.
- */
-
-static int
-ReadInteger(char *string, char **NextString)
-{
- register int Result = 0;
- int Sign = 1;
-
- if (*string == '+')
- string++;
- else if (*string == '-')
- {
- string++;
- Sign = -1;
- }
- for (; (*string >= '0') && (*string <= '9'); string++)
- {
- Result = (Result * 10) + (*string - '0');
- }
- *NextString = string;
- if (Sign >= 0)
- return Result;
- else
- return -Result;
-}
-
-static int XParseGeometry (
- const char *string,
- int *x,
- int *y,
- unsigned int *width, /* RETURN */
- unsigned int *height) /* RETURN */
-{
- int mask = NoValue;
- register char *strind;
- unsigned int tempWidth = 0, tempHeight = 0;
- int tempX = 0, tempY = 0;
- char *nextCharacter;
-
- if ( (string == NULL) || (*string == '\0'))
- return mask;
- if (*string == '=')
- string++; /* ignore possible '=' at beg of geometry spec */
-
- strind = (char *)string;
- if (*strind != '+' && *strind != '-' && *strind != 'x') {
- tempWidth = ReadInteger(strind, &nextCharacter);
- if (strind == nextCharacter)
- return 0;
- strind = nextCharacter;
- mask |= WidthValue;
- }
-
- if (*strind == 'x' || *strind == 'X') {
- strind++;
- tempHeight = ReadInteger(strind, &nextCharacter);
- if (strind == nextCharacter)
- return 0;
- strind = nextCharacter;
- mask |= HeightValue;
- }
-
- if ((*strind == '+') || (*strind == '-')) {
- if (*strind == '-') {
- strind++;
- tempX = -ReadInteger(strind, &nextCharacter);
- if (strind == nextCharacter)
- return 0;
- strind = nextCharacter;
- mask |= XNegative;
- }
- else
- {
- strind++;
- tempX = ReadInteger(strind, &nextCharacter);
- if (strind == nextCharacter)
- return 0;
- strind = nextCharacter;
- }
- mask |= XValue;
- if ((*strind == '+') || (*strind == '-')) {
- if (*strind == '-') {
- strind++;
- tempY = -ReadInteger(strind, &nextCharacter);
- if (strind == nextCharacter)
- return 0;
- strind = nextCharacter;
- mask |= YNegative;
- }
- else
- {
- strind++;
- tempY = ReadInteger(strind, &nextCharacter);
- if (strind == nextCharacter)
- return 0;
- strind = nextCharacter;
- }
- mask |= YValue;
- }
- }
-
- /* If strind isn't at the end of the string the it's an invalid
- geometry specification. */
-
- if (*strind != '\0') return 0;
-
- if (mask & XValue)
- *x = tempX;
- if (mask & YValue)
- *y = tempY;
- if (mask & WidthValue)
- *width = tempWidth;
- if (mask & HeightValue)
- *height = tempHeight;
- return mask;
-}
-#endif
-
-/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
-
-/*
- * Perform initialization. This usually happens on the program startup
- * and restarting after glutMainLoop termination...
- */
-void FGAPIENTRY glutInit( int* pargc, char** argv )
-{
- char* displayName = NULL;
- char* geometry = NULL;
- int i, j, argc = *pargc;
-
- if( fgState.Initialised )
- fgError( "illegal glutInit() reinitialization attempt" );
-
- if (pargc && *pargc && argv && *argv && **argv)
- {
- fgState.ProgramName = strdup (*argv);
-
- if( !fgState.ProgramName )
- fgError ("Could not allocate space for the program's name.");
- }
-
- fgCreateStructure( );
-
- /* Get start time */
- fgState.Time = fgSystemTime();
-
- /* check if GLUT_FPS env var is set */
-#ifndef _WIN32_WCE
- {
- const char *fps = getenv( "GLUT_FPS" );
-
- if( fps )
- {
- int interval;
- sscanf( fps, "%d", &interval );
-
- if( interval <= 0 )
- fgState.FPSInterval = 5000; /* 5000 millisecond default */
- else
- fgState.FPSInterval = interval;
- }
- }
-
- displayName = getenv( "DISPLAY" );
-
- for( i = 1; i < argc; i++ )
- {
- if( strcmp( argv[ i ], "-display" ) == 0 )
- {
- if( ++i >= argc )
- fgError( "-display parameter must be followed by display name" );
-
- displayName = argv[ i ];
-
- argv[ i - 1 ] = NULL;
- argv[ i ] = NULL;
- ( *pargc ) -= 2;
- }
- else if( strcmp( argv[ i ], "-geometry" ) == 0 )
- {
- if( ++i >= argc )
- fgError( "-geometry parameter must be followed by window "
- "geometry settings" );
-
- geometry = argv[ i ];
-
- argv[ i - 1 ] = NULL;
- argv[ i ] = NULL;
- ( *pargc ) -= 2;
- }
- else if( strcmp( argv[ i ], "-direct" ) == 0)
- {
- if( fgState.DirectContext == GLUT_FORCE_INDIRECT_CONTEXT )
- fgError( "parameters ambiguity, -direct and -indirect "
- "cannot be both specified" );
-
- fgState.DirectContext = GLUT_FORCE_DIRECT_CONTEXT;
- argv[ i ] = NULL;
- ( *pargc )--;
- }
- else if( strcmp( argv[ i ], "-indirect" ) == 0 )
- {
- if( fgState.DirectContext == GLUT_FORCE_DIRECT_CONTEXT )
- fgError( "parameters ambiguity, -direct and -indirect "
- "cannot be both specified" );
-
- fgState.DirectContext = GLUT_FORCE_INDIRECT_CONTEXT;
- argv[ i ] = NULL;
- (*pargc)--;
- }
- else if( strcmp( argv[ i ], "-iconic" ) == 0 )
- {
- fgState.ForceIconic = GL_TRUE;
- argv[ i ] = NULL;
- ( *pargc )--;
- }
- else if( strcmp( argv[ i ], "-gldebug" ) == 0 )
- {
- fgState.GLDebugSwitch = GL_TRUE;
- argv[ i ] = NULL;
- ( *pargc )--;
- }
- else if( strcmp( argv[ i ], "-sync" ) == 0 )
- {
- fgState.XSyncSwitch = GL_TRUE;
- argv[ i ] = NULL;
- ( *pargc )--;
- }
- }
-
- /* Compact {argv}. */
- for( i = j = 1; i < *pargc; i++, j++ )
- {
- /* Guaranteed to end because there are "*pargc" arguments left */
- while ( argv[ j ] == NULL )
- j++;
- if ( i != j )
- argv[ i ] = argv[ j ];
- }
-
-#endif /* _WIN32_WCE */
-
- /*
- * Have the display created now. If there wasn't a "-display"
- * in the program arguments, we will use the DISPLAY environment
- * variable for opening the X display (see code above):
- */
- fghInitialize( displayName );
-
- /*
- * Geometry parsing deffered until here because we may need the screen
- * size.
- */
-
- if (geometry )
- {
- unsigned int parsedWidth, parsedHeight;
- int mask = XParseGeometry( geometry,
- &fgState.Position.X, &fgState.Position.Y,
- &parsedWidth, &parsedHeight );
- /* TODO: Check for overflow? */
- fgState.Size.X = parsedWidth;
- fgState.Size.Y = parsedHeight;
-
- if( (mask & (WidthValue|HeightValue)) == (WidthValue|HeightValue) )
- fgState.Size.Use = GL_TRUE;
-
- if( mask & XNegative )
- fgState.Position.X += fgDisplay.ScreenWidth - fgState.Size.X;
-
- if( mask & YNegative )
- fgState.Position.Y += fgDisplay.ScreenHeight - fgState.Size.Y;
-
- if( (mask & (XValue|YValue)) == (XValue|YValue) )
- fgState.Position.Use = GL_TRUE;
- }
-}
-
-#if TARGET_HOST_MS_WINDOWS
-void (__cdecl *__glutExitFunc)( int return_value ) = NULL;
-
-void FGAPIENTRY __glutInitWithExit( int *pargc, char **argv, void (__cdecl *exit_function)(int) )
-{
- __glutExitFunc = exit_function;
- glutInit(pargc, argv);
-}
-#endif
-
-/*
- * Undoes all the "glutInit" stuff
- */
-void FGAPIENTRY glutExit ( void )
-{
- fgDeinitialize ();
-}
-
-/*
- * Sets the default initial window position for new windows
- */
-void FGAPIENTRY glutInitWindowPosition( int x, int y )
-{
- fgState.Position.X = x;
- fgState.Position.Y = y;
-
- if( ( x >= 0 ) && ( y >= 0 ) )
- fgState.Position.Use = GL_TRUE;
- else
- fgState.Position.Use = GL_FALSE;
-}
-
-/*
- * Sets the default initial window size for new windows
- */
-void FGAPIENTRY glutInitWindowSize( int width, int height )
-{
- fgState.Size.X = width;
- fgState.Size.Y = height;
-
- if( ( width > 0 ) && ( height > 0 ) )
- fgState.Size.Use = GL_TRUE;
- else
- fgState.Size.Use = GL_FALSE;
-}
-
-/*
- * Sets the default display mode for all new windows
- */
-void FGAPIENTRY glutInitDisplayMode( unsigned int displayMode )
-{
- /* We will make use of this value when creating a new OpenGL context... */
- fgState.DisplayMode = displayMode;
-}
-
-
-/* -- INIT DISPLAY STRING PARSING ------------------------------------------ */
-
-static char* Tokens[] =
-{
- "alpha", "acca", "acc", "blue", "buffer", "conformant", "depth", "double",
- "green", "index", "num", "red", "rgba", "rgb", "luminance", "stencil",
- "single", "stereo", "samples", "slow", "win32pdf", "win32pfd", "xvisual",
- "xstaticgray", "xgrayscale", "xstaticcolor", "xpseudocolor",
- "xtruecolor", "xdirectcolor",
- "xstaticgrey", "xgreyscale", "xstaticcolour", "xpseudocolour",
- "xtruecolour", "xdirectcolour", "borderless", "aux"
-};
-#define NUM_TOKENS (sizeof(Tokens) / sizeof(*Tokens))
-
-void FGAPIENTRY glutInitDisplayString( const char* displayMode )
-{
- int glut_state_flag = 0 ;
- /*
- * Unpack a lot of options from a character string. The options are
- * delimited by blanks or tabs.
- */
- char *token ;
- size_t len = strlen ( displayMode );
- char *buffer = (char *)malloc ( (len+1) * sizeof(char) );
- memcpy ( buffer, displayMode, len );
- buffer[len] = '\0';
-
- token = strtok ( buffer, " \t" );
-
- while ( token )
- {
- /* Process this token */
- int i ;
-
- /* Temporary fix: Ignore any length specifications and at least
- * process the basic token
- * TODO: Fix this permanently
- */
- size_t cleanlength = strcspn ( token, "=<>~!" );
-
- for ( i = 0; i < NUM_TOKENS; i++ )
- {
- if ( strncmp ( token, Tokens[i], cleanlength ) == 0 ) break ;
- }
-
- switch ( i )
- {
- case 0 : /* "alpha": Alpha color buffer precision in bits */
- glut_state_flag |= GLUT_ALPHA ; /* Somebody fix this for me! */
- break ;
-
- case 1 : /* "acca": Red, green, blue, and alpha accumulation buffer
- precision in bits */
- break ;
-
- case 2 : /* "acc": Red, green, and blue accumulation buffer precision
- in bits with zero bits alpha */
- glut_state_flag |= GLUT_ACCUM ; /* Somebody fix this for me! */
- break ;
-
- case 3 : /* "blue": Blue color buffer precision in bits */
- break ;
-
- case 4 : /* "buffer": Number of bits in the color index color buffer
- */
- break ;
-
- case 5 : /* "conformant": Boolean indicating if the frame buffer
- configuration is conformant or not */
- break ;
-
- case 6 : /* "depth": Number of bits of precsion in the depth buffer */
- glut_state_flag |= GLUT_DEPTH ; /* Somebody fix this for me! */
- break ;
-
- case 7 : /* "double": Boolean indicating if the color buffer is
- double buffered */
- glut_state_flag |= GLUT_DOUBLE ;
- break ;
-
- case 8 : /* "green": Green color buffer precision in bits */
- break ;
-
- case 9 : /* "index": Boolean if the color model is color index or not
- */
- glut_state_flag |= GLUT_INDEX ;
- break ;
-
- case 10 : /* "num": A special capability name indicating where the
- value represents the Nth frame buffer configuration
- matching the description string */
- break ;
-
- case 11 : /* "red": Red color buffer precision in bits */
- break ;
-
- case 12 : /* "rgba": Number of bits of red, green, blue, and alpha in
- the RGBA color buffer */
- glut_state_flag |= GLUT_RGBA ; /* Somebody fix this for me! */
- break ;
-
- case 13 : /* "rgb": Number of bits of red, green, and blue in the
- RGBA color buffer with zero bits alpha */
- glut_state_flag |= GLUT_RGB ; /* Somebody fix this for me! */
- break ;
-
- case 14 : /* "luminance": Number of bits of red in the RGBA and zero
- bits of green, blue (alpha not specified) of color buffer
- precision */
- glut_state_flag |= GLUT_LUMINANCE ; /* Somebody fix this for me! */
- break ;
-
- case 15 : /* "stencil": Number of bits in the stencil buffer */
- glut_state_flag |= GLUT_STENCIL; /* Somebody fix this for me! */
- break ;
-
- case 16 : /* "single": Boolean indicate the color buffer is single
- buffered */
- glut_state_flag |= GLUT_SINGLE ;
- break ;
-
- case 17 : /* "stereo": Boolean indicating the color buffer supports
- OpenGL-style stereo */
- glut_state_flag |= GLUT_STEREO ;
- break ;
-
- case 18 : /* "samples": Indicates the number of multisamples to use
- based on GLX's SGIS_multisample extension (for
- antialiasing) */
- glut_state_flag |= GLUT_MULTISAMPLE ; /*Somebody fix this for me!*/
- break ;
-
- case 19 : /* "slow": Boolean indicating if the frame buffer
- configuration is slow or not */
- break ;
-
- case 20 : /* "win32pdf": (incorrect spelling but was there before */
- case 21 : /* "win32pfd": matches the Win32 Pixel Format Descriptor by
- number */
-#if TARGET_HOST_MS_WINDOWS
-#endif
- break ;
-
- case 22 : /* "xvisual": matches the X visual ID by number */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 23 : /* "xstaticgray": */
- case 29 : /* "xstaticgrey": boolean indicating if the frame buffer
- configuration's X visual is of type StaticGray */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 24 : /* "xgrayscale": */
- case 30 : /* "xgreyscale": boolean indicating if the frame buffer
- configuration's X visual is of type GrayScale */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 25 : /* "xstaticcolor": */
- case 31 : /* "xstaticcolour": boolean indicating if the frame buffer
- configuration's X visual is of type StaticColor */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 26 : /* "xpseudocolor": */
- case 32 : /* "xpseudocolour": boolean indicating if the frame buffer
- configuration's X visual is of type PseudoColor */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 27 : /* "xtruecolor": */
- case 33 : /* "xtruecolour": boolean indicating if the frame buffer
- configuration's X visual is of type TrueColor */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 28 : /* "xdirectcolor": */
- case 34 : /* "xdirectcolour": boolean indicating if the frame buffer
- configuration's X visual is of type DirectColor */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 35 : /* "borderless": windows should not have borders */
-#if TARGET_HOST_POSIX_X11
-#endif
- break ;
-
- case 36 : /* "aux": some number of aux buffers */
- glut_state_flag |= GLUT_AUX;
- break ;
-
- case 37 : /* Unrecognized */
- fgWarning ( "WARNING - Display string token not recognized: %s",
- token );
- break ;
- }
-
- token = strtok ( NULL, " \t" );
- }
-
- free ( buffer );
-
- /* We will make use of this value when creating a new OpenGL context... */
- fgState.DisplayMode = glut_state_flag;
-}
-
-/* -- SETTING OPENGL 3.0 CONTEXT CREATION PARAMETERS ---------------------- */
-
-void FGAPIENTRY glutInitContextVersion( int majorVersion, int minorVersion )
-{
- /* We will make use of these valuse when creating a new OpenGL context... */
- fgState.MajorVersion = majorVersion;
- fgState.MinorVersion = minorVersion;
-}
-
-
-void FGAPIENTRY glutInitContextFlags( int flags )
-{
- /* We will make use of this value when creating a new OpenGL context... */
- fgState.ContextFlags = flags;
-}
-
-void FGAPIENTRY glutInitContextProfile( int profile )
-{
- /* We will make use of this value when creating a new OpenGL context... */
- fgState.ContextProfile = profile;
-}
-
-/* -------------- User Defined Error/Warning Handler Support -------------- */
-
-/*
- * Sets the user error handler (note the use of va_list for the args to the fmt)
- */
-void FGAPIENTRY glutInitErrorFunc( void (* vfgError) ( const char *fmt, va_list ap ) )
-{
- /* This allows user programs to handle freeglut errors */
- fgState.ErrorFunc = vfgError;
-}
-
-/*
- * Sets the user warning handler (note the use of va_list for the args to the fmt)
- */
-void FGAPIENTRY glutInitWarningFunc( void (* vfgWarning) ( const char *fmt, va_list ap ) )
-{
- /* This allows user programs to handle freeglut warnings */
- fgState.WarningFunc = vfgWarning;
-}
-
-/*** END OF FILE ***/
projects / freeglut / blobdiff