--- /dev/null
+/*
+ * freeglut_internal.h
+ *
+ * The freeglut library private include file.
+ *
+ * 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.
+ */
+
+#ifndef FREEGLUT_INTERNAL_H
+#define FREEGLUT_INTERNAL_H
+
+/*
+ * Freeglut is meant to be available under all Unix/X11 and Win32 platforms.
+ */
+#if !defined(_WIN32)
+# define TARGET_HOST_UNIX_X11 1
+# define TARGET_HOST_WIN32 0
+#else
+# define TARGET_HOST_UNIX_X11 0
+# define TARGET_HOST_WIN32 1
+#endif
+
+#define FREEGLUT_MAX_MENUS 3
+#define FREEGLUT_DEBUG 1
+
+#if FREEGLUT_DEBUG
+ #undef G_DISABLE_ASSERT
+ #undef G_DISABLE_CHECKS
+#else
+ #define G_DISABLE_ASSERT
+ #define G_DISABLE_CHECKS
+#endif
+
+/*
+ * Somehow all Win32 include headers depend on this one:
+ */
+#if TARGET_HOST_WIN32
+#include <windows.h>
+#include <windowsx.h>
+
+#define strdup _strdup
+#endif
+
+/*
+ * Those files should be available on every platform.
+ */
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdarg.h>
+#if TARGET_HOST_UNIX_X11
+#include <sys/time.h>
+#endif
+
+/*
+ * The system-dependant include files should go here:
+ */
+#if TARGET_HOST_UNIX_X11
+ #include <GL/glx.h>
+ #include <X11/Xlib.h>
+ #include <X11/Xatom.h>
+ #include <X11/keysym.h>
+
+ /*
+ * This will generate errors, but I don't have any idea how to fix it (will autoconf help?)
+ */
+ #include <X11/extensions/xf86vmode.h>
+#endif
+
+/*
+ * Microsoft VisualC++ 5.0's <math.h> does not define the PI
+ */
+#ifndef M_PI
+# define M_PI 3.14159265358979323846
+#endif
+
+#ifndef TRUE
+# define TRUE 1
+#endif
+
+#ifndef FALSE
+# define FALSE 0
+#endif
+
+/* -- GLOBAL TYPE DEFINITIONS ---------------------------------------------- */
+
+/*
+ * Freeglut callbacks type definitions
+ */
+typedef void (* FGCBdisplay )( void );
+typedef void (* FGCBreshape )( int, int );
+typedef void (* FGCBvisibility )( int );
+typedef void (* FGCBkeyboard )( unsigned char, int, int );
+typedef void (* FGCBspecial )( int, int, int );
+typedef void (* FGCBmouse )( int, int, int, int );
+typedef void (* FGCBmotion )( int, int );
+typedef void (* FGCBpassive )( int, int );
+typedef void (* FGCBentry )( int );
+typedef void (* FGCBwindowStatus )( int );
+typedef void (* FGCBmenuState )( int );
+typedef void (* FGCBmenuStatus )( int, int, int );
+typedef void (* FGCBselect )( int, int, int );
+typedef void (* FGCBjoystick )( unsigned int, int, int, int );
+typedef void (* FGCBkeyboardUp )( unsigned char, int, int );
+typedef void (* FGCBspecialUp )( int, int, int );
+typedef void (* FGCBoverlayDisplay)( void );
+typedef void (* FGCBspaceMotion )( int, int, int );
+typedef void (* FGCBspaceRotate )( int, int, int );
+typedef void (* FGCBspaceButton )( int, int );
+typedef void (* FGCBdials )( int, int );
+typedef void (* FGCBbuttonBox )( int, int );
+typedef void (* FGCBtabletMotion )( int, int );
+typedef void (* FGCBtabletButton )( int, int, int, int );
+typedef void (* FGCBdestroy )( void );
+
+/*
+ * The global callbacks type definitions
+ */
+typedef void (* FGCBidle )( void );
+typedef void (* FGCBtimer )( int );
+
+/*
+ * The callback used when creating/using menus
+ */
+typedef void (* FGCBmenu )( int );
+
+
+/*
+ * A list structure
+ */
+typedef struct tagSFG_List SFG_List;
+struct tagSFG_List
+{
+ void *First;
+ void *Last;
+};
+
+/*
+ * A list node structure
+ */
+typedef struct tagSFG_Node SFG_Node;
+struct tagSFG_Node
+{
+ void *Next;
+ void *Prev;
+};
+
+/*
+ * A helper structure holding two ints and a boolean
+ */
+typedef struct tagSFG_XYUse SFG_XYUse;
+struct tagSFG_XYUse
+{
+ GLint X, Y; /* The two integers... */
+ GLboolean Use; /* ...and a single boolean. */
+};
+
+/*
+ * A helper structure holding a timeval and a boolean
+ */
+typedef struct tagSFG_Time SFG_Time;
+struct tagSFG_Time
+{
+#ifdef WIN32
+ DWORD Value;
+#else
+ struct timeval Value;
+#endif
+ GLboolean Set;
+};
+
+/*
+ * An enumeration containing the state of the GLUT execution: initializing, running, or stopping
+ */
+typedef enum {
+ GLUT_EXEC_STATE_INIT,
+ GLUT_EXEC_STATE_RUNNING,
+ GLUT_EXEC_STATE_STOP
+} fgExecutionState ;
+
+/*
+ * This structure holds different freeglut settings
+ */
+typedef struct tagSFG_State SFG_State;
+struct tagSFG_State
+{
+ SFG_XYUse Position; /* The default windows' position */
+ SFG_XYUse Size; /* The default windows' size */
+ unsigned int DisplayMode; /* The display mode for new windows */
+
+ GLboolean ForceDirectContext; /* Should we force direct contexts? */
+ GLboolean TryDirectContext; /* What about giving a try to? */
+
+ GLboolean ForceIconic; /* All new top windows are iconified */
+
+ GLboolean GLDebugSwitch; /* OpenGL state debugging switch */
+ GLboolean XSyncSwitch; /* X11 sync protocol switch */
+
+ GLboolean IgnoreKeyRepeat; /* Whether to ignore key repeat... */
+
+ SFG_Time Time; /* The time that glutInit was called */
+ SFG_List Timers; /* The freeglut timer hooks */
+
+ FGCBidle IdleCallback; /* The global idle callback */
+
+ FGCBmenuState MenuStateCallback; /* Menu callbacks are global */
+ FGCBmenuStatus MenuStatusCallback;
+
+ SFG_XYUse GameModeSize; /* The game mode screen's dimensions */
+ int GameModeDepth; /* The pixel depth for game mode */
+ int GameModeRefresh; /* The refresh rate for game mode */
+
+ int ActionOnWindowClose ; /* Action when user clicks "x" on window header bar */
+
+ fgExecutionState ExecState ; /* Current state of the GLUT execution */
+};
+
+/*
+ * The structure used by display initialization in freeglut_init.c
+ */
+typedef struct tagSFG_Display SFG_Display;
+struct tagSFG_Display
+{
+#if TARGET_HOST_UNIX_X11
+ Display* Display; /* The display we are being run in. */
+ int Screen; /* The screen we are about to use. */
+ Window RootWindow; /* The screen's root window. */
+ int Connection; /* The display's connection number */
+ Atom DeleteWindow; /* The window deletion atom */
+
+#ifdef X_XF86VidModeGetModeLine
+ XF86VidModeModeLine DisplayMode; /* Current screen's display settings */
+ int DisplayModeClock; /* The display mode's refresh rate */
+#endif
+
+#elif TARGET_HOST_WIN32
+ HINSTANCE Instance; /* The application's instance */
+ DEVMODE DisplayMode; /* Desktop's display settings */
+
+#endif
+
+ int ScreenWidth; /* The screen's width in pixels */
+ int ScreenHeight; /* The screen's height in pixels */
+ int ScreenWidthMM; /* The screen's width in milimeters */
+ int ScreenHeightMM; /* The screen's height in milimeters */
+};
+
+
+/*
+ * The user can create any number of timer hooks
+ */
+typedef struct tagSFG_Timer SFG_Timer;
+struct tagSFG_Timer
+{
+ SFG_Node Node;
+ int ID; /* The timer ID integer */
+ FGCBtimer Callback; /* The timer callback */
+ long TriggerTime; /* The timer trigger time */
+};
+
+/*
+ * A window and its OpenGL context. The contents of this structure
+ * are highly dependant on the target operating system we aim at...
+ */
+typedef struct tagSFG_Context SFG_Context;
+struct tagSFG_Context
+{
+#if TARGET_HOST_UNIX_X11
+ Window Handle; /* The window's handle */
+ GLXContext Context; /* The OpenGL context */
+ XVisualInfo* VisualInfo; /* The window's visual information */
+
+#elif TARGET_HOST_WIN32
+ HWND Handle; /* The window's handle */
+ HDC Device; /* The window's device context */
+ HGLRC Context; /* The window's WGL context */
+
+#endif
+};
+
+/*
+ * Window's state description. This structure should be kept portable.
+ */
+typedef struct tagSFG_WindowState SFG_WindowState;
+struct tagSFG_WindowState
+{
+ int Width; /* Window's width in pixels */
+ int Height; /* The same about the height */
+
+ GLboolean Redisplay; /* Do we have to redisplay? */
+ GLboolean Visible; /* Is the window visible now */
+
+ int Cursor; /* The currently selected cursor */
+ int Modifiers; /* The current ALT/SHIFT/CTRL state */
+
+ long JoystickPollRate; /* The joystick polling rate */
+ long JoystickLastPoll; /* When the last poll has happened */
+
+ int MouseX, MouseY; /* The most recent mouse position */
+
+ GLboolean IsGameMode; /* Is this the game mode window? */
+
+#if TARGET_HOST_WIN32
+ GLboolean NeedToResize; /* Do we need to explicitly resize? */
+#endif
+};
+
+/*
+ * The window callbacks the user can supply us with. Should be kept portable.
+ */
+typedef struct tagSFG_WindowCallbacks SFG_WindowCallbacks;
+struct tagSFG_WindowCallbacks
+{
+ /*
+ * Following callbacks are fully supported right now
+ * and are ready to be tested for GLUT conformance:
+ */
+ FGCBdisplay Display;
+ FGCBreshape Reshape;
+ FGCBkeyboard Keyboard;
+ FGCBkeyboardUp KeyboardUp;
+ FGCBspecial Special;
+ FGCBspecialUp SpecialUp;
+ FGCBmouse Mouse;
+ FGCBmotion Motion;
+ FGCBpassive Passive;
+ FGCBentry Entry;
+ FGCBvisibility Visibility;
+ FGCBwindowStatus WindowStatus;
+ FGCBjoystick Joystick;
+ FGCBdestroy Destroy;
+
+ /*
+ * Those callbacks are being ignored for the moment
+ */
+ FGCBselect Select;
+ FGCBoverlayDisplay OverlayDisplay;
+ FGCBspaceMotion SpaceMotion;
+ FGCBspaceRotate SpaceRotation;
+ FGCBspaceButton SpaceButton;
+ FGCBdials Dials;
+ FGCBbuttonBox ButtonBox;
+ FGCBtabletMotion TabletMotion;
+ FGCBtabletButton TabletButton;
+};
+
+/*
+ * This structure describes a menu
+ */
+typedef struct tagSFG_Menu SFG_Menu;
+struct tagSFG_Menu
+{
+ SFG_Node Node;
+ int ID; /* The global menu ID */
+ SFG_List Entries; /* The menu entries list */
+ FGCBmenu Callback; /* The menu callback */
+ GLboolean IsActive; /* Is the menu selected? */
+ int Width; /* Menu box width in pixels */
+ int Height; /* Menu box height in pixels */
+ int X, Y; /* Menu box raster position */
+};
+
+/*
+ * This is a menu entry
+ */
+typedef struct tagSFG_MenuEntry SFG_MenuEntry;
+struct tagSFG_MenuEntry
+{
+ SFG_Node Node;
+ int ID; /* The menu entry ID (local) */
+ int Ordinal; /* The menu's ordinal number */
+ char* Text; /* The text to be displayed */
+ SFG_Menu* SubMenu; /* Optional sub-menu tree */
+ GLboolean IsActive; /* Is the entry highlighted? */
+ int Width; /* Label's width in pixels */
+};
+
+/*
+ * A window, making part of FreeGLUT windows hierarchy. Should be kept portable.
+ */
+typedef struct tagSFG_Window SFG_Window;
+struct tagSFG_Window
+{
+ SFG_Node Node;
+ int ID; /* Window's ID number */
+
+ SFG_Context Window; /* Window and OpenGL context */
+ SFG_WindowState State; /* The window state */
+ SFG_WindowCallbacks Callbacks; /* The window callbacks */
+
+ SFG_Menu* Menu[ FREEGLUT_MAX_MENUS ]; /* Menus appended to window */
+ SFG_Menu* ActiveMenu; /* The window's active menu */
+
+ SFG_Window* Parent; /* The parent to this window */
+ SFG_List Children; /* The subwindows d.l. list */
+};
+
+/*
+ * A linked list structure of windows
+ */
+typedef struct tagSFG_WindowList SFG_WindowList ;
+struct tagSFG_WindowList
+{
+ SFG_Window *window ;
+ GLboolean needToClose ;
+ SFG_WindowList *next ;
+} ;
+
+/*
+ * This holds information about all the windows, menus etc.
+ */
+typedef struct tagSFG_Structure SFG_Structure;
+struct tagSFG_Structure
+{
+ SFG_List Windows; /* The global windows list */
+ SFG_List Menus; /* The global menus list */
+
+ SFG_Window* Window; /* The currently active win. */
+ SFG_Menu* Menu; /* Same, but menu... */
+
+ SFG_Window* GameMode; /* The game mode window */
+
+ int WindowID; /* The new current window ID */
+ int MenuID; /* The new current menu ID */
+};
+
+/*
+ * This structure is used for the enumeration purposes.
+ * You can easily extend its functionalities by declaring
+ * a structure containing enumerator's contents and custom
+ * data, then casting its pointer to (SFG_Enumerator *).
+ */
+typedef struct tagSFG_Enumerator SFG_Enumerator;
+struct tagSFG_Enumerator
+{
+ GLboolean found; /* Used to terminate search */
+ void* data; /* Custom data pointer */
+};
+typedef void (* FGCBenumerator )( SFG_Window *, SFG_Enumerator * );
+
+/*
+ * The bitmap font structure
+ */
+typedef struct tagSFG_Font SFG_Font;
+struct tagSFG_Font
+{
+ char* Name; /* The source font name */
+ int Quantity; /* Number of chars in font */
+ int Height; /* Height of the characters */
+ const GLubyte** Characters; /* The characters mapping */
+
+ float xorig, yorig ; /* The origin of the character relative to the draw location */
+};
+
+/*
+ * The stroke font structures
+ */
+
+typedef struct tagSFG_StrokeVertex SFG_StrokeVertex;
+struct tagSFG_StrokeVertex
+{
+ GLfloat X, Y;
+};
+
+typedef struct tagSFG_StrokeStrip SFG_StrokeStrip;
+struct tagSFG_StrokeStrip
+{
+ int Number;
+ const SFG_StrokeVertex* Vertices;
+};
+
+typedef struct tagSFG_StrokeChar SFG_StrokeChar;
+struct tagSFG_StrokeChar
+{
+ GLfloat Right;
+ int Number;
+ const SFG_StrokeStrip* Strips;
+};
+
+typedef struct tagSFG_StrokeFont SFG_StrokeFont;
+struct tagSFG_StrokeFont
+{
+ char* Name; /* The source font name */
+ int Quantity; /* Number of chars in font */
+ GLfloat Height; /* Height of the characters */
+ const SFG_StrokeChar** Characters; /* The characters mapping */
+};
+
+/* -- GLOBAL VARIABLES EXPORTS --------------------------------------------- */
+
+/*
+ * Freeglut display related stuff (initialized once per session)
+ */
+extern SFG_Display fgDisplay;
+
+/*
+ * Freeglut internal structure
+ */
+extern SFG_Structure fgStructure;
+
+/*
+ * The current freeglut settings
+ */
+extern SFG_State fgState;
+
+
+/* -- PRIVATE FUNCTION DECLARATIONS ---------------------------------------- */
+
+/*
+ * A call to this function makes us sure that the Display and Structure
+ * subsystems have been properly initialized and are ready to be used
+ */
+#define freeglut_assert_ready assert( fgState.Time.Set );
+
+/*
+ * Following definitions are somewhat similiar to GLib's,
+ * but do not generate any log messages:
+ */
+#define freeglut_return_if_fail( expr ) if( !(expr) ) return;
+#define freeglut_return_val_if_fail( expr, val ) if( !(expr) ) return( val );
+
+/*
+ * A call to those macros assures us that there is a current
+ * window and menu set, respectively:
+ */
+#define freeglut_assert_window assert( fgStructure.Window != NULL );
+#define freeglut_assert_menu assert( fgStructure.Menu != NULL );
+
+/*
+ * The initialize and deinitialize functions get called on glutInit()
+ * and glutMainLoop() end respectively. They should create/clean up
+ * everything inside of the freeglut
+ */
+void fgInitialize( const char* displayName );
+void fgDeinitialize( void );
+
+/*
+ * Those two functions are used to create/destroy the freeglut internal
+ * structures. This actually happens when calling glutInit() and when
+ * quitting the glutMainLoop() (which actually happens, when all windows
+ * have been closed).
+ */
+void fgCreateStructure( void );
+void fgDestroyStructure( void );
+
+/*
+ * A helper function to check if a display mode is possible to use
+ */
+#if TARGET_HOST_UNIX_X11
+XVisualInfo* fgChooseVisual( void );
+#endif
+
+/*
+ * The window procedure for Win32 events handling
+ */
+#if TARGET_HOST_WIN32
+LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
+GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly, unsigned char layer_type );
+#endif
+
+/*
+ * Window creation, opening, closing and destruction.
+ * Defined in freeglut_structure.c, freeglut_window.c.
+ */
+SFG_Window* fgCreateWindow( SFG_Window* parent, const char* title, int x, int y, int w, int h, GLboolean gameMode );
+void fgSetWindow ( SFG_Window *window ) ;
+void fgOpenWindow( SFG_Window* window, const char* title, int x, int y, int w, int h, GLboolean gameMode, int isSubWindow );
+void fgCloseWindow( SFG_Window* window );
+void fgAddToWindowDestroyList ( SFG_Window* window, GLboolean needToClose ) ;
+void fgCloseWindows () ;
+void fgDestroyWindow( SFG_Window* window, GLboolean needToClose );
+
+/*
+ * Menu creation and destruction. Defined in freeglut_structure.c
+ */
+SFG_Menu* fgCreateMenu( FGCBmenu menuCallback );
+void fgDestroyMenu( SFG_Menu* menu );
+
+/*
+ * Joystick device management functions, defined in freeglut_joystick.c
+ */
+void fgJoystickInit( int ident );
+void fgJoystickClose( void );
+void fgJoystickPollWindow( SFG_Window* window );
+
+/*
+ * Helper function to enumerate through all registered windows
+ * and one to enumerate all of a window's subwindows...
+ *
+ * The GFunc callback for those functions will be defined as:
+ *
+ * void enumCallback( gpointer window, gpointer enumerator );
+ *
+ * where window is the enumerated (sub)window pointer (SFG_Window *),
+ * and userData is the a custom user-supplied pointer. Functions
+ * are defined and exported from freeglut_structure.c file.
+ */
+void fgEnumWindows( FGCBenumerator enumCallback, SFG_Enumerator* enumerator );
+void fgEnumSubWindows( SFG_Window* window, FGCBenumerator enumCallback, SFG_Enumerator* enumerator );
+
+/*
+ * fgWindowByHandle returns a (SFG_Window *) value pointing to the
+ * first window in the queue matching the specified window handle.
+ * The function is defined in freeglut_structure.c file.
+ */
+#if TARGET_HOST_UNIX_X11
+ SFG_Window* fgWindowByHandle( Window hWindow );
+#elif TARGET_HOST_WIN32
+
+ SFG_Window* fgWindowByHandle( HWND hWindow );
+#endif
+
+/*
+ * This function is similiar to the previous one, except it is
+ * looking for a specified (sub)window identifier. The function
+ * is defined in freeglut_structure.c file.
+ */
+SFG_Window* fgWindowByID( int windowID );
+
+/*
+ * Looks up a menu given its ID. This is easier that fgWindowByXXX
+ * as all menus are placed in a single doubly linked list...
+ */
+SFG_Menu* fgMenuByID( int menuID );
+
+/*
+ * The menu activation and deactivation the code. This is the meat
+ * of the menu user interface handling code...
+ */
+void fgActivateMenu( SFG_Window* window, int button );
+void fgExecuteMenuCallback( SFG_Menu* menu ) ;
+GLboolean fgCheckActiveMenu ( SFG_Window *window, SFG_Menu *menu ) ;
+void fgDeactivateMenu( SFG_Window *window );
+
+/*
+ * This function gets called just before the buffers swap, so that
+ * freeglut can display the pull-down menus via OpenGL. The function
+ * is defined in freeglut_menu.c file.
+ */
+void fgDisplayMenu( void );
+
+/*
+ * Display the mouse cursor using OpenGL calls. The function
+ * is defined in freeglut_cursor.c file.
+ */
+void fgDisplayCursor( void );
+
+/*
+ * Elapsed time as per glutGet(GLUT_ELAPSED_TIME).
+ */
+long fgElapsedTime( void );
+
+/*
+ * List functions
+ */
+void fgListInit(SFG_List *list);
+void fgListAppend(SFG_List *list, SFG_Node *node);
+void fgListRemove(SFG_List *list, SFG_Node *node);
+int fgListLength(SFG_List *list);
+
+/*
+ * Error Messages functions
+ */
+void fgError( const char *fmt, ... );
+void fgWarning( const char *fmt, ... );
+
+#endif /* FREEGLUT_INTERNAL_H */
+
+/*** END OF FILE ***/
+++ /dev/null
-/*
- * freeglut_internal.h
- *
- * The freeglut library private include file.
- *
- * 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.
- */
-
-#ifndef FREEGLUT_INTERNAL_H
-#define FREEGLUT_INTERNAL_H
-
-/*
- * Freeglut is meant to be available under all Unix/X11 and Win32 platforms.
- */
-#if !defined(_WIN32)
-# define TARGET_HOST_UNIX_X11 1
-# define TARGET_HOST_WIN32 0
-#else
-# define TARGET_HOST_UNIX_X11 0
-# define TARGET_HOST_WIN32 1
-#endif
-
-#define FREEGLUT_MAX_MENUS 3
-#define FREEGLUT_DEBUG 1
-
-#if FREEGLUT_DEBUG
- #undef G_DISABLE_ASSERT
- #undef G_DISABLE_CHECKS
-#else
- #define G_DISABLE_ASSERT
- #define G_DISABLE_CHECKS
-#endif
-
-/*
- * Somehow all Win32 include headers depend on this one:
- */
-#if TARGET_HOST_WIN32
- #include <windows.h>
- #include <windowsx.h>
-#endif
-
-/*
- * Those files should be available on every platform.
- */
-#include <GL/gl.h>
-#include <GL/glu.h>
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <stdarg.h>
-#if TARGET_HOST_UNIX_X11
-#include <sys/time.h>
-#endif
-
-/*
- * The system-dependant include files should go here:
- */
-#if TARGET_HOST_UNIX_X11
- #include <GL/glx.h>
- #include <X11/Xlib.h>
- #include <X11/Xatom.h>
- #include <X11/keysym.h>
-
- /*
- * This will generate errors, but I don't have any idea how to fix it (will autoconf help?)
- */
- #include <X11/extensions/xf86vmode.h>
-#endif
-
-/*
- * Microsoft VisualC++ 5.0's <math.h> does not define the PI
- */
-#ifndef M_PI
-# define M_PI 3.14159265358979323846
-#endif
-
-#ifndef TRUE
-# define TRUE 1
-#endif
-
-#ifndef FALSE
-# define FALSE 0
-#endif
-
-/* -- GLOBAL TYPE DEFINITIONS ---------------------------------------------- */
-
-/*
- * Freeglut callbacks type definitions
- */
-typedef void (* FGCBdisplay )( void );
-typedef void (* FGCBreshape )( int, int );
-typedef void (* FGCBvisibility )( int );
-typedef void (* FGCBkeyboard )( unsigned char, int, int );
-typedef void (* FGCBspecial )( int, int, int );
-typedef void (* FGCBmouse )( int, int, int, int );
-typedef void (* FGCBmotion )( int, int );
-typedef void (* FGCBpassive )( int, int );
-typedef void (* FGCBentry )( int );
-typedef void (* FGCBwindowStatus )( int );
-typedef void (* FGCBmenuState )( int );
-typedef void (* FGCBmenuStatus )( int, int, int );
-typedef void (* FGCBselect )( int, int, int );
-typedef void (* FGCBjoystick )( unsigned int, int, int, int );
-typedef void (* FGCBkeyboardUp )( unsigned char, int, int );
-typedef void (* FGCBspecialUp )( int, int, int );
-typedef void (* FGCBoverlayDisplay)( void );
-typedef void (* FGCBspaceMotion )( int, int, int );
-typedef void (* FGCBspaceRotate )( int, int, int );
-typedef void (* FGCBspaceButton )( int, int );
-typedef void (* FGCBdials )( int, int );
-typedef void (* FGCBbuttonBox )( int, int );
-typedef void (* FGCBtabletMotion )( int, int );
-typedef void (* FGCBtabletButton )( int, int, int, int );
-typedef void (* FGCBdestroy )( void );
-
-/*
- * The global callbacks type definitions
- */
-typedef void (* FGCBidle )( void );
-typedef void (* FGCBtimer )( int );
-
-/*
- * The callback used when creating/using menus
- */
-typedef void (* FGCBmenu )( int );
-
-
-/*
- * A list structure
- */
-typedef struct tagSFG_List SFG_List;
-struct tagSFG_List
-{
- void *First;
- void *Last;
-};
-
-/*
- * A list node structure
- */
-typedef struct tagSFG_Node SFG_Node;
-struct tagSFG_Node
-{
- void *Next;
- void *Prev;
-};
-
-/*
- * A helper structure holding two ints and a boolean
- */
-typedef struct tagSFG_XYUse SFG_XYUse;
-struct tagSFG_XYUse
-{
- GLint X, Y; /* The two integers... */
- GLboolean Use; /* ...and a single boolean. */
-};
-
-/*
- * A helper structure holding a timeval and a boolean
- */
-typedef struct tagSFG_Time SFG_Time;
-struct tagSFG_Time
-{
-#ifdef WIN32
- DWORD Value;
-#else
- struct timeval Value;
-#endif
- GLboolean Set;
-};
-
-/*
- * An enumeration containing the state of the GLUT execution: initializing, running, or stopping
- */
-typedef enum {
- GLUT_EXEC_STATE_INIT,
- GLUT_EXEC_STATE_RUNNING,
- GLUT_EXEC_STATE_STOP
-} fgExecutionState ;
-
-/*
- * This structure holds different freeglut settings
- */
-typedef struct tagSFG_State SFG_State;
-struct tagSFG_State
-{
- SFG_XYUse Position; /* The default windows' position */
- SFG_XYUse Size; /* The default windows' size */
- unsigned int DisplayMode; /* The display mode for new windows */
-
- GLboolean ForceDirectContext; /* Should we force direct contexts? */
- GLboolean TryDirectContext; /* What about giving a try to? */
-
- GLboolean ForceIconic; /* All new top windows are iconified */
-
- GLboolean GLDebugSwitch; /* OpenGL state debugging switch */
- GLboolean XSyncSwitch; /* X11 sync protocol switch */
-
- GLboolean IgnoreKeyRepeat; /* Whether to ignore key repeat... */
-
- SFG_Time Time; /* The time that glutInit was called */
- SFG_List Timers; /* The freeglut timer hooks */
-
- FGCBidle IdleCallback; /* The global idle callback */
-
- FGCBmenuState MenuStateCallback; /* Menu callbacks are global */
- FGCBmenuStatus MenuStatusCallback;
-
- SFG_XYUse GameModeSize; /* The game mode screen's dimensions */
- int GameModeDepth; /* The pixel depth for game mode */
- int GameModeRefresh; /* The refresh rate for game mode */
-
- int ActionOnWindowClose ; /* Action when user clicks "x" on window header bar */
-
- fgExecutionState ExecState ; /* Current state of the GLUT execution */
-};
-
-/*
- * The structure used by display initialization in freeglut_init.c
- */
-typedef struct tagSFG_Display SFG_Display;
-struct tagSFG_Display
-{
-#if TARGET_HOST_UNIX_X11
- Display* Display; /* The display we are being run in. */
- int Screen; /* The screen we are about to use. */
- Window RootWindow; /* The screen's root window. */
- int Connection; /* The display's connection number */
- Atom DeleteWindow; /* The window deletion atom */
-
-#ifdef X_XF86VidModeGetModeLine
- XF86VidModeModeLine DisplayMode; /* Current screen's display settings */
- int DisplayModeClock; /* The display mode's refresh rate */
-#endif
-
-#elif TARGET_HOST_WIN32
- HINSTANCE Instance; /* The application's instance */
- DEVMODE DisplayMode; /* Desktop's display settings */
-
-#endif
-
- int ScreenWidth; /* The screen's width in pixels */
- int ScreenHeight; /* The screen's height in pixels */
- int ScreenWidthMM; /* The screen's width in milimeters */
- int ScreenHeightMM; /* The screen's height in milimeters */
-};
-
-
-/*
- * The user can create any number of timer hooks
- */
-typedef struct tagSFG_Timer SFG_Timer;
-struct tagSFG_Timer
-{
- SFG_Node Node;
- int ID; /* The timer ID integer */
- FGCBtimer Callback; /* The timer callback */
- long TriggerTime; /* The timer trigger time */
-};
-
-/*
- * A window and its OpenGL context. The contents of this structure
- * are highly dependant on the target operating system we aim at...
- */
-typedef struct tagSFG_Context SFG_Context;
-struct tagSFG_Context
-{
-#if TARGET_HOST_UNIX_X11
- Window Handle; /* The window's handle */
- GLXContext Context; /* The OpenGL context */
- XVisualInfo* VisualInfo; /* The window's visual information */
-
-#elif TARGET_HOST_WIN32
- HWND Handle; /* The window's handle */
- HDC Device; /* The window's device context */
- HGLRC Context; /* The window's WGL context */
-
-#endif
-};
-
-/*
- * Window's state description. This structure should be kept portable.
- */
-typedef struct tagSFG_WindowState SFG_WindowState;
-struct tagSFG_WindowState
-{
- int Width; /* Window's width in pixels */
- int Height; /* The same about the height */
-
- GLboolean Redisplay; /* Do we have to redisplay? */
- GLboolean Visible; /* Is the window visible now */
-
- int Cursor; /* The currently selected cursor */
- int Modifiers; /* The current ALT/SHIFT/CTRL state */
-
- long JoystickPollRate; /* The joystick polling rate */
- long JoystickLastPoll; /* When the last poll has happened */
-
- int MouseX, MouseY; /* The most recent mouse position */
-
- GLboolean IsGameMode; /* Is this the game mode window? */
-
-#if TARGET_HOST_WIN32
- GLboolean NeedToResize; /* Do we need to explicitly resize? */
-#endif
-};
-
-/*
- * The window callbacks the user can supply us with. Should be kept portable.
- */
-typedef struct tagSFG_WindowCallbacks SFG_WindowCallbacks;
-struct tagSFG_WindowCallbacks
-{
- /*
- * Following callbacks are fully supported right now
- * and are ready to be tested for GLUT conformance:
- */
- FGCBdisplay Display;
- FGCBreshape Reshape;
- FGCBkeyboard Keyboard;
- FGCBkeyboardUp KeyboardUp;
- FGCBspecial Special;
- FGCBspecialUp SpecialUp;
- FGCBmouse Mouse;
- FGCBmotion Motion;
- FGCBpassive Passive;
- FGCBentry Entry;
- FGCBvisibility Visibility;
- FGCBwindowStatus WindowStatus;
- FGCBjoystick Joystick;
- FGCBdestroy Destroy;
-
- /*
- * Those callbacks are being ignored for the moment
- */
- FGCBselect Select;
- FGCBoverlayDisplay OverlayDisplay;
- FGCBspaceMotion SpaceMotion;
- FGCBspaceRotate SpaceRotation;
- FGCBspaceButton SpaceButton;
- FGCBdials Dials;
- FGCBbuttonBox ButtonBox;
- FGCBtabletMotion TabletMotion;
- FGCBtabletButton TabletButton;
-};
-
-/*
- * This structure describes a menu
- */
-typedef struct tagSFG_Menu SFG_Menu;
-struct tagSFG_Menu
-{
- SFG_Node Node;
- int ID; /* The global menu ID */
- SFG_List Entries; /* The menu entries list */
- FGCBmenu Callback; /* The menu callback */
- GLboolean IsActive; /* Is the menu selected? */
- int Width; /* Menu box width in pixels */
- int Height; /* Menu box height in pixels */
- int X, Y; /* Menu box raster position */
-};
-
-/*
- * This is a menu entry
- */
-typedef struct tagSFG_MenuEntry SFG_MenuEntry;
-struct tagSFG_MenuEntry
-{
- SFG_Node Node;
- int ID; /* The menu entry ID (local) */
- int Ordinal; /* The menu's ordinal number */
- char* Text; /* The text to be displayed */
- SFG_Menu* SubMenu; /* Optional sub-menu tree */
- GLboolean IsActive; /* Is the entry highlighted? */
- int Width; /* Label's width in pixels */
-};
-
-/*
- * A window, making part of FreeGLUT windows hierarchy. Should be kept portable.
- */
-typedef struct tagSFG_Window SFG_Window;
-struct tagSFG_Window
-{
- SFG_Node Node;
- int ID; /* Window's ID number */
-
- SFG_Context Window; /* Window and OpenGL context */
- SFG_WindowState State; /* The window state */
- SFG_WindowCallbacks Callbacks; /* The window callbacks */
-
- SFG_Menu* Menu[ FREEGLUT_MAX_MENUS ]; /* Menus appended to window */
- SFG_Menu* ActiveMenu; /* The window's active menu */
-
- SFG_Window* Parent; /* The parent to this window */
- SFG_List Children; /* The subwindows d.l. list */
-};
-
-/*
- * A linked list structure of windows
- */
-typedef struct tagSFG_WindowList SFG_WindowList ;
-struct tagSFG_WindowList
-{
- SFG_Window *window ;
- GLboolean needToClose ;
- SFG_WindowList *next ;
-} ;
-
-/*
- * This holds information about all the windows, menus etc.
- */
-typedef struct tagSFG_Structure SFG_Structure;
-struct tagSFG_Structure
-{
- SFG_List Windows; /* The global windows list */
- SFG_List Menus; /* The global menus list */
-
- SFG_Window* Window; /* The currently active win. */
- SFG_Menu* Menu; /* Same, but menu... */
-
- SFG_Window* GameMode; /* The game mode window */
-
- int WindowID; /* The new current window ID */
- int MenuID; /* The new current menu ID */
-};
-
-/*
- * This structure is used for the enumeration purposes.
- * You can easily extend its functionalities by declaring
- * a structure containing enumerator's contents and custom
- * data, then casting its pointer to (SFG_Enumerator *).
- */
-typedef struct tagSFG_Enumerator SFG_Enumerator;
-struct tagSFG_Enumerator
-{
- GLboolean found; /* Used to terminate search */
- void* data; /* Custom data pointer */
-};
-typedef void (* FGCBenumerator )( SFG_Window *, SFG_Enumerator * );
-
-/*
- * The bitmap font structure
- */
-typedef struct tagSFG_Font SFG_Font;
-struct tagSFG_Font
-{
- char* Name; /* The source font name */
- int Quantity; /* Number of chars in font */
- int Height; /* Height of the characters */
- const GLubyte** Characters; /* The characters mapping */
-
- float xorig, yorig ; /* The origin of the character relative to the draw location */
-};
-
-/*
- * The stroke font structures
- */
-
-typedef struct tagSFG_StrokeVertex SFG_StrokeVertex;
-struct tagSFG_StrokeVertex
-{
- GLfloat X, Y;
-};
-
-typedef struct tagSFG_StrokeStrip SFG_StrokeStrip;
-struct tagSFG_StrokeStrip
-{
- int Number;
- const SFG_StrokeVertex* Vertices;
-};
-
-typedef struct tagSFG_StrokeChar SFG_StrokeChar;
-struct tagSFG_StrokeChar
-{
- GLfloat Right;
- int Number;
- const SFG_StrokeStrip* Strips;
-};
-
-typedef struct tagSFG_StrokeFont SFG_StrokeFont;
-struct tagSFG_StrokeFont
-{
- char* Name; /* The source font name */
- int Quantity; /* Number of chars in font */
- GLfloat Height; /* Height of the characters */
- const SFG_StrokeChar** Characters; /* The characters mapping */
-};
-
-/* -- GLOBAL VARIABLES EXPORTS --------------------------------------------- */
-
-/*
- * Freeglut display related stuff (initialized once per session)
- */
-extern SFG_Display fgDisplay;
-
-/*
- * Freeglut internal structure
- */
-extern SFG_Structure fgStructure;
-
-/*
- * The current freeglut settings
- */
-extern SFG_State fgState;
-
-
-/* -- PRIVATE FUNCTION DECLARATIONS ---------------------------------------- */
-
-/*
- * A call to this function makes us sure that the Display and Structure
- * subsystems have been properly initialized and are ready to be used
- */
-#define freeglut_assert_ready assert( fgState.Time.Set );
-
-/*
- * Following definitions are somewhat similiar to GLib's,
- * but do not generate any log messages:
- */
-#define freeglut_return_if_fail( expr ) if( !(expr) ) return;
-#define freeglut_return_val_if_fail( expr, val ) if( !(expr) ) return( val );
-
-/*
- * A call to those macros assures us that there is a current
- * window and menu set, respectively:
- */
-#define freeglut_assert_window assert( fgStructure.Window != NULL );
-#define freeglut_assert_menu assert( fgStructure.Menu != NULL );
-
-/*
- * The initialize and deinitialize functions get called on glutInit()
- * and glutMainLoop() end respectively. They should create/clean up
- * everything inside of the freeglut
- */
-void fgInitialize( const char* displayName );
-void fgDeinitialize( void );
-
-/*
- * Those two functions are used to create/destroy the freeglut internal
- * structures. This actually happens when calling glutInit() and when
- * quitting the glutMainLoop() (which actually happens, when all windows
- * have been closed).
- */
-void fgCreateStructure( void );
-void fgDestroyStructure( void );
-
-/*
- * A helper function to check if a display mode is possible to use
- */
-#if TARGET_HOST_UNIX_X11
-XVisualInfo* fgChooseVisual( void );
-#endif
-
-/*
- * The window procedure for Win32 events handling
- */
-#if TARGET_HOST_WIN32
-LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
-GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly );
-#endif
-
-/*
- * Window creation, opening, closing and destruction.
- * Defined in freeglut_structure.c, freeglut_window.c.
- */
-SFG_Window* fgCreateWindow( SFG_Window* parent, const char* title, int x, int y, int w, int h, GLboolean gameMode );
-void fgOpenWindow( SFG_Window* window, const char* title, int x, int y, int w, int h, GLboolean gameMode, int isSubWindow );
-void fgCloseWindow( SFG_Window* window );
-void fgAddToWindowDestroyList ( SFG_Window* window, GLboolean needToClose ) ;
-void fgCloseWindows () ;
-void fgDestroyWindow( SFG_Window* window, GLboolean needToClose );
-
-/*
- * Menu creation and destruction. Defined in freeglut_structure.c
- */
-SFG_Menu* fgCreateMenu( FGCBmenu menuCallback );
-void fgDestroyMenu( SFG_Menu* menu );
-
-/*
- * Joystick device management functions, defined in freeglut_joystick.c
- */
-void fgJoystickInit( int ident );
-void fgJoystickClose( void );
-void fgJoystickPollWindow( SFG_Window* window );
-
-/*
- * Helper function to enumerate through all registered windows
- * and one to enumerate all of a window's subwindows...
- *
- * The GFunc callback for those functions will be defined as:
- *
- * void enumCallback( gpointer window, gpointer enumerator );
- *
- * where window is the enumerated (sub)window pointer (SFG_Window *),
- * and userData is the a custom user-supplied pointer. Functions
- * are defined and exported from freeglut_structure.c file.
- */
-void fgEnumWindows( FGCBenumerator enumCallback, SFG_Enumerator* enumerator );
-void fgEnumSubWindows( SFG_Window* window, FGCBenumerator enumCallback, SFG_Enumerator* enumerator );
-
-/*
- * fgWindowByHandle returns a (SFG_Window *) value pointing to the
- * first window in the queue matching the specified window handle.
- * The function is defined in freeglut_structure.c file.
- */
-#if TARGET_HOST_UNIX_X11
- SFG_Window* fgWindowByHandle( Window hWindow );
-#elif TARGET_HOST_WIN32
-
- SFG_Window* fgWindowByHandle( HWND hWindow );
-#endif
-
-/*
- * This function is similiar to the previous one, except it is
- * looking for a specified (sub)window identifier. The function
- * is defined in freeglut_structure.c file.
- */
-SFG_Window* fgWindowByID( int windowID );
-
-/*
- * Looks up a menu given its ID. This is easier that fgWindowByXXX
- * as all menus are placed in a single doubly linked list...
- */
-SFG_Menu* fgMenuByID( int menuID );
-
-/*
- * The menu activation and deactivation the code. This is the meat
- * of the menu user interface handling code...
- */
-void fgActivateMenu( SFG_Window* window, int button );
-void fgExecuteMenuCallback( SFG_Menu* menu ) ;
-GLboolean fgCheckActiveMenu ( SFG_Window *window, SFG_Menu *menu ) ;
-void fgDeactivateMenu( SFG_Window *window );
-
-/*
- * This function gets called just before the buffers swap, so that
- * freeglut can display the pull-down menus via OpenGL. The function
- * is defined in freeglut_menu.c file.
- */
-void fgDisplayMenu( void );
-
-/*
- * Display the mouse cursor using OpenGL calls. The function
- * is defined in freeglut_cursor.c file.
- */
-void fgDisplayCursor( void );
-
-/*
- * Elapsed time as per glutGet(GLUT_ELAPSED_TIME).
- */
-long fgElapsedTime( void );
-
-/*
- * List functions
- */
-void fgListInit(SFG_List *list);
-void fgListAppend(SFG_List *list, SFG_Node *node);
-void fgListRemove(SFG_List *list, SFG_Node *node);
-int fgListLength(SFG_List *list);
-
-/*
- * Error Messages functions
- */
-void fgError( const char *fmt, ... );
-void fgWarning( const char *fmt, ... );
-
-#endif /* FREEGLUT_INTERNAL_H */
-
-/*** END OF FILE ***/
projects / freeglut / commitdiff