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Retired Document

Important: This sample code may not represent best practices for current development. The project may use deprecated symbols and illustrate technologies and techniques that are no longer recommended.

Relevant replacement documents include:

http://developer.apple.com/samplecode/QTCoreVideo101/index.html

OpenGL Movie Main.c

/*

    File:       OpenGL Moov Main.c

    Contains:   Main event handling and setup for gl moov demo

    Copyright:  2000 Apple Computer, Inc., All Rights Reserved

    Change History (most recent first):

        <5+>     2/24/01    ggs     fix window handling for full screen

         <5>     2/24/01    ggs     New quit event handler

         <4>     12/4/00    ggs     Fixed Quit Event Handler

         <3>    11/25/00    ggs     fixed non-Carbon parts

         <2>    11/25/00    ggs     Completed options and dialog

         <1>    10/29/00    ggs     Name change

    Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.

                ("Apple") in consideration of your agreement to the following terms, and your

                use, installation, modification or redistribution of this Apple software

                constitutes acceptance of these terms.  If you do not agree with these terms,

                please do not use, install, modify or redistribute this Apple software.

                In consideration of your agreement to abide by the following terms, and subject

                to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs

                copyrights in this original Apple software (the "Apple Software"), to use,

                reproduce, modify and redistribute the Apple Software, with or without

                modifications, in source and/or binary forms; provided that if you redistribute

                the Apple Software in its entirety and without modifications, you must retain

                this notice and the following text and disclaimers in all such redistributions of

                the Apple Software.  Neither the name, trademarks, service marks or logos of

                Apple Computer, Inc. may be used to endorse or promote products derived from the

                Apple Software without specific prior written permission from Apple.  Except as

                expressly stated in this notice, no other rights or licenses, express or implied,

                are granted by Apple herein, including but not limited to any patent rights that

                may be infringed by your derivative works or by other works in which the Apple

                Software may be incorporated.

                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

                WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

                COMBINATION WITH YOUR PRODUCTS.

                IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

                CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

                GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

                ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION

                OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT

                (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN

                ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

// system includes ----------------------------------------------------------

#ifdef __APPLE_CC__

    #include "Carbon Include.h"

    #include <Carbon/Carbon.h>

    #include <AGL/agl.h>

    #include <OpenGL/gl.h>

#else

    #include <Devices.h>

    #include <Dialogs.h>

    #include <DriverServices.h>

    #include <Events.h>

    #include <LowMem.h>

    #include <TextEdit.h>

    #include <ToolUtils.h>

    #include <Windows.h>

    // profile

    #if __profile__

    #include <Profiler.h>

    #endif

    #include <agl.h>

    #include <gl.h>

#endif

#include <math.h>

#include <stdio.h>

//#include <string.h>

// project includes ---------------------------------------------------------

#include "OpenGLMovie.h"

// prototypes ---------------------------------------------------------------

void InitToolbox(void);

Boolean SetUp (void);

void DoMenu (SInt32 menuResult);

void DoKey (SInt8 theKey, SInt8 theCode);

void DoUpdate (void);

#if TARGET_API_MAC_CARBON

pascal void IdleTimer (EventLoopTimerRef inTimer, void* userData);

EventLoopTimerUPP GetTimerUPP (void);

#endif

void DoButton (void);

void DoEvent (void);

void CleanUp (void);

// profile wrappers

Boolean WaitNextEventWrapper (short eventMask, EventRecord *theEvent, unsigned long sleep,RgnHandle mouseRgn);

void UpdateWrapper (EventRecord *theEvent);

// statics/globals (internal only) ------------------------------------------

// Menu defs

enum

    kNumRes = 10,

    kNumFreqs = 11,

    kMenuApple = 128,

    kMenuFile = 129,

    kAppleAbout = 1,

    kFileQuit = 1

};

#if TARGET_API_MAC_CARBON

enum

    kForegroundSleep = 10,

    kBackgroundSleep = 10000

};

EventLoopTimerRef gTimer = NULL;

#else

enum

    kForegroundSleep = 0,

    kBackgroundSleep = 100

};

#endif

SInt32 gSleepTime = kForegroundSleep;

Boolean gDone = false, gfFrontProcess = true;

// profile

#if __profile__

OSErr gProfErr = noErr;

#endif

// functions (internal/private) ---------------------------------------------

static pascal OSErr QuitAppleEventHandler( const AppleEvent *appleEvt, AppleEvent* reply, SInt32 refcon )

    #pragma unused (appleEvt, reply, refcon)

    gDone =  true;

    return false;

// --------------------------------------------------------------------------

void InitToolbox(void)

    OSErr err;

    long response;

    MenuHandle menu;

#if !TARGET_API_MAC_CARBON

    MaxApplZone ();

    InitGraf((Ptr) &qd.thePort);

    InitFonts();

    InitWindows();

    InitMenus();

    TEInit();

    InitDialogs(nil);

#endif

    InitCursor();

// profile

#if __profile__

//  prototype:

//      ProfilerInit (collection method, time base, num funcs, stack depth)

    // default call

    gProfErr = ProfilerInit (collectDetailed, bestTimeBase, 20, 5); // set up profiling

    // something that you may need to do (may need more memory)

//  gProfErr = ProfilerInit (collectSummary, bestTimeBase, 1000, 100); // set up profiling

// Note: application will likely run slower, but still should be useful info

    if (noErr == gProfErr)

        ProfilerSetStatus(FALSE);

#endif

#if !TARGET_API_MAC_CARBON

    qd.randSeed =  TickCount(); // ? Random()

#endif

    // Init Menus

    menu = NewMenu (kMenuApple, "\p\024");          // new  apple menu

    InsertMenu (menu, 0);                           // add menu to end

#if !TARGET_API_MAC_CARBON

    AppendResMenu(menu, 'DRVR');

#endif

    // add quit if not under Mac OS X

    err = Gestalt (gestaltMenuMgrAttr, &response);

    if ((err == noErr) && !(response & gestaltMenuMgrAquaLayoutMask))

            menu = NewMenu (kMenuFile, "\pFile");           // new menu

            InsertMenu (menu, 0);                           // add menu to end

            AppendMenu (menu, "\pQuit/Q");                  // add quit

    DrawMenuBar();

    err = AEInstallEventHandler( kCoreEventClass, kAEQuitApplication, NewAEEventHandlerUPP(QuitAppleEventHandler), 0, false );

    if (err != noErr)

        ExitToShell();

    InitCursor ();

// --------------------------------------------------------------------------

Boolean SetUp (void)

    InitToolbox ();

// profile

#if __profile__

    if (noErr == gProfErr)

        ProfilerSetStatus (TRUE); // turn on profiling

#endif

    GetSettings ();

    if (noErr == SetupGLMovie ())

        StartGLMovie ();

    else

        return false;

#if TARGET_API_MAC_CARBON

    // now that we are set up go ahead and start drawing

    InstallEventLoopTimer (GetCurrentEventLoop(), 0, 0.000001, GetTimerUPP (), 0, &gTimer);

#endif

// profile

#if __profile__

    if (noErr == gProfErr)

        ProfilerSetStatus (FALSE); // turn on profiling

#endif

    return true;

// --------------------------------------------------------------------------

void DoMenu (SInt32 menuResult)

#if !TARGET_API_MAC_CARBON

    Str255 daName;

#endif

    SInt16 theMenu;

    SInt16 theItem;

    MenuRef theMenuHandle;

    theMenu = HiWord(menuResult);

    theItem = LoWord(menuResult);

    theMenuHandle = GetMenuHandle(theMenu);

    switch (theMenu)

        case kMenuApple:

            switch (theItem)

                case kAppleAbout:

                    break;

                default:

#if !TARGET_API_MAC_CARBON

                    GetMenuItemText (theMenuHandle, theItem, daName);

                    OpenDeskAcc(daName);

#endif

                    break;

            break;

        case kMenuFile:

            switch (theItem)

                case kFileQuit:

                    gDone = true;

                    break;

            break;

    HiliteMenu(0);

    DrawMenuBar();

// --------------------------------------------------------------------------

void DoKey (SInt8 theKey, SInt8 theCode)

    #pragma unused (theCode, theKey)

    // do nothing

// --------------------------------------------------------------------------

void DoUpdate (void)

    DrawGLMovieFrame ();

    if (GLMovieDone ())

        EndGLMovie ();

// --------------------------------------------------------------------------

void UpdateWrapper (EventRecord *theEvent)

    WindowRef whichWindow;

    GrafPtr pGrafSave;

    whichWindow = (WindowRef) theEvent->message;

    GetPort (&pGrafSave);

    SetPort((GrafPtr) GetWindowPort(whichWindow));

    BeginUpdate(whichWindow);

    DoUpdate();

    SetPort((GrafPtr) GetWindowPort(whichWindow));

    EndUpdate(whichWindow);

    SetPort (pGrafSave);

// --------------------------------------------------------------------------

#if TARGET_API_MAC_CARBON

pascal void IdleTimer (EventLoopTimerRef inTimer, void* userData)

    #pragma unused (inTimer, userData)

    DoUpdate ();

// --------------------------------------------------------------------------

EventLoopTimerUPP GetTimerUPP (void)

    static EventLoopTimerUPP    sTimerUPP = NULL;

    if (sTimerUPP == NULL)

        sTimerUPP = NewEventLoopTimerUPP (IdleTimer);

    return sTimerUPP;

#endif

// --------------------------------------------------------------------------

void DoButton (void)

    DrawGLMovieFrame ();

    if (GLMovieDone () || Button ())

        gDone = true;

        EndGLMovie ();

// --------------------------------------------------------------------------

Boolean WaitNextEventWrapper (short eventMask, EventRecord *theEvent, unsigned long sleep,RgnHandle mouseRgn)

    return WaitNextEvent (eventMask, theEvent, sleep, mouseRgn);

// --------------------------------------------------------------------------

void DoEvent (void)

    EventRecord theEvent;

    Rect rectGrow;

    SInt32 menuResult;

    WindowRef whichWindow = NULL;

    long grow;

    SInt16 whatPart;

    SInt8 theKey;

    SInt8 theCode;

    Boolean fProcessed = false;

    if (WaitNextEventWrapper (everyEvent, &theEvent, gSleepTime, NULL))

        fProcessed = ProcessFullScreenEvent (&theEvent);

        if (!fProcessed)

            switch (theEvent.what)

                case mouseDown:

                    whatPart = FindWindow(theEvent.where, &whichWindow);

//                  if (whichWindow != NULL)

//                      SelectWindow (whichWindow);

                    switch (whatPart)

                        case inGoAway:

                            break;

                        case inMenuBar:

                            DrawMenuBar();

                            menuResult = MenuSelect(theEvent.where);

                            if (HiWord(menuResult) != 0)

                                DoMenu(menuResult);

                            break;

                        case inDrag:

#if !TARGET_API_MAC_CARBON

                                DragWindow (whichWindow, theEvent.where, &(**LMGetGrayRgn()).rgnBBox);

#else

                                BitMap  screenBits;

                                DragWindow(whichWindow, theEvent.where, &GetQDGlobalsScreenBits(&screenBits)->bounds);

#endif

                            break;

                        case inGrow:

                            SetRect (&rectGrow, 100, 100, 20000, 20000);

                            grow = GrowWindow (whichWindow, theEvent.where, &rectGrow);

                            if (grow)

                                SizeWindow (whichWindow, grow & 0x0000FFFF, grow >> 16, true);

                                // do content stuff here

                                SetPort((GrafPtr) GetWindowPort(whichWindow));

#if !TARGET_API_MAC_CARBON

                                InvalRect (&whichWindow->portRect);             // redraw all

#else

                                    Rect tempRect;

                                    InvalWindowRect(whichWindow, GetWindowPortBounds(whichWindow, &tempRect));

#endif

                                UpdateGLMovieForGrow (grow & 0x0000FFFF, grow >> 16);

                            break;

                        case inSysWindow:

#if !TARGET_API_MAC_CARBON

                            SystemClick(&theEvent, whichWindow);

#endif

                            break;

                    break;

                case keyDown:

                case autoKey:

                    theKey = theEvent.message & charCodeMask;

                    theCode = (theEvent.message & keyCodeMask) >> 8;

                    if ((theEvent.modifiers & cmdKey) != 0)

                        menuResult = MenuKey(theKey);

                        if (HiWord(menuResult) != 0)

                            DoMenu (menuResult);

                    else

                        DoKey (theKey, theCode);

                    break;

                case updateEvt:

                    UpdateWrapper (&theEvent);

                    break;

                case diskEvt:

                    break;

                case osEvt:

                    if (theEvent.message & 0x01000000)      //  Suspend/resume event

                        if (theEvent.message & 0x00000001)  //  Resume

                            gSleepTime = kForegroundSleep;

/*                          if (IsFullScreen ())

                                ResumeFullScreenGLMovie ();

                            else

                                ResumeGLMovie ();

                            DoUpdate ();

*/                          gfFrontProcess = true;

                        else

                            gSleepTime = kBackgroundSleep;  //  Suspend

/*                          if (IsFullScreen ())

                                SuspendFullScreenGLMovie ();

                            else

                                SuspendGLMovie ();

*/                          gfFrontProcess = false;

                    break;

                case kHighLevelEvent:

                    AEProcessAppleEvent(&theEvent);

                    break;

#if !TARGET_API_MAC_CARBON

    else

        DoUpdate ();

#endif // !TARGET_API_MAC_CARBON

// --------------------------------------------------------------------------

void CleanUp (void)

    MenuHandle hMenu;

#if TARGET_API_MAC_CARBON

    if (gTimer)

        RemoveEventLoopTimer(gTimer);

        gTimer = NULL;

#endif

    CleanupGLMovie ();

    hMenu = GetMenuHandle (kMenuFile);

    DeleteMenu (kMenuFile);

    DisposeMenu (hMenu);

    hMenu = GetMenuHandle (kMenuApple);

    DeleteMenu (kMenuApple);

    DisposeMenu (hMenu);

// profile

#if __profile__

    if (noErr == gProfErr)

        ProfilerDump("\pMoovGL.prof");

        ProfilerTerm();

#endif

// --------------------------------------------------------------------------

int main (void)

    if (SetUp ())

        while (!gDone)

// profile

#if __profile__

            if (noErr == gProfErr)

                ProfilerSetStatus(TRUE); // turn on profiling

#endif

            if (UseWaitNextEvent ())

                DoEvent ();

            else

                DoButton ();

// profile

#if __profile__

            if (noErr == gProfErr)

                ProfilerSetStatus(FALSE); // turn profiling off again

#endif

    CleanUp ();

    return 0;

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