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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 Controls.c

/*

    File:       OpenGLMovieControls.c

    Contains:   OpenGL Movie demo

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

    Change History (most recent first):

        <7+>     12/6/00    ggs

         <7>     12/5/00    ggs     Added Mac OS X check

         <6>     12/5/00    ???     removed extranious headers

         <5>     12/5/00    ggs     change comment

         <4>     12/4/00    ggs     Fixed some Carbon and mac OS X things

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

         <2>    11/25/00    ggs     fix header

         <1>    11/25/00    ggs     Intial Add

        <1+>    11/25/00    ggs     fix header

    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.

*/

#ifdef __APPLE_CC__

    #include "Carbon Include.h"

    #include <Carbon/Carbon.h>

#else

    #include <ControlDefinitions.h>

#endif

#include <math.h>

#include <stdio.h>

#include <string.h>

#include "OpenGLMovie.h"

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

static Boolean IsMacOSXRuntime (void);

void PStrCopy (Str255 s1, const Str255 s2 );    // copy s2 -> s1

static Handle NewOpenHandle(OSType applicationSignature, short numTypes, OSType typeList[]);

void SetPrefs (struct structMovieSettings * pSettings);

void GetPrefs (struct structMovieSettings * pSettings);

pascal Boolean OptionsFilter(DialogPtr dlg, EventRecord *event, short *itemHit);

void GetDialogValues (DialogPtr pDialog, struct structMovieSettings * pSettings);

void SetDialogValues (DialogPtr pDialog, struct structMovieSettings * pSettings);

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

// IsMacOSXRuntime

// Runtime check to see if we are running on Mac OS X

static Boolean IsMacOSXRuntime (void)

    UInt32 response;

    return (Gestalt(gestaltSystemVersion, (SInt32 *) &response) == noErr) && (response >= 0x01000);

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

void PStrCopy (Str255 s1, const Str255 s2 ) // copy s2 -> s1

    register int length = *s2 + 1;

    while (length--)

        *s1++ = *s2++;

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

static Handle NewOpenHandle(OSType applicationSignature, short numTypes, OSType typeList[])

    Handle hdl = NULL;

    if ( numTypes > 0 )

        hdl = NewHandle(sizeof(NavTypeList) + numTypes * sizeof(OSType));

        if ( hdl != NULL )

            NavTypeListHandle open      = (NavTypeListHandle)hdl;

            (*open)->componentSignature = applicationSignature;

            (*open)->osTypeCount        = numTypes;

            BlockMoveData(typeList, (*open)->osType, numTypes * sizeof(OSType));

    return hdl;

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

void SetPrefs (struct structMovieSettings * pSettings)

    FILE * filePrefs;

    filePrefs = fopen ("Prefs File", "wb");

    if  (!filePrefs)                        // could not open

        return;

    fwrite (pSettings, sizeof (struct structMovieSettings), 1, filePrefs);

    fclose (filePrefs);

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

void GetPrefs (struct structMovieSettings * pSettings)

    FILE * filePrefs;

    filePrefs = fopen ("Prefs File", "rb");

    if  (!filePrefs)                        // could not open

        return;

    fread (pSettings, sizeof (struct structMovieSettings), 1, filePrefs);

    fclose (filePrefs);

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

pascal Boolean OptionsFilter (DialogPtr theDialog, EventRecord *theEvent, short *itemHit)

    Boolean result = false;

    OSErr err = noErr;

    ModalFilterUPP standardProc;

    if ((theEvent->what == updateEvt) && (DialogPtr)theEvent->message != theDialog)

    //  err = DispatchWindowUpdate ((WindowPtr)theEvent->message);

    else if ((theEvent->what == activateEvt) && (DialogPtr)theEvent->message != theDialog)

    //  DoActivate (theEvent, true);

    else

        err = GetStdFilterProc (&standardProc);

        if (err == noErr)

            result = InvokeModalFilterUPP (theDialog, theEvent, itemHit, standardProc);

    return result;

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

void GetDialogValues (DialogPtr pDialog, struct structMovieSettings * pSettings)

    short       itemType;

    Rect        itemRect;

    Handle      itemHandle;

    short       theValue;

    // grab control values

    // Display Size

    GetDialogItem (pDialog, 2, &itemType, &itemHandle, &itemRect);

    theValue = GetControlValue ((ControlHandle) itemHandle);

    switch (theValue)

        case 1:

            pSettings->wWindowWidth = 400;

            pSettings->wWindowHeight = 300;

            break;

        case 2:

            pSettings->wWindowWidth = 512;

            pSettings->wWindowHeight = 384;

            break;

        case 3:

            pSettings->wWindowWidth = 640;

            pSettings->wWindowHeight = 480;

            break;

        case 4:

            pSettings->wWindowWidth = 800;

            pSettings->wWindowHeight = 600;

            break;

        case 5:

            pSettings->wWindowWidth = 1024;

            pSettings->wWindowHeight = 768;

            break;

        case 6:

            pSettings->wWindowWidth = 1280;

            pSettings->wWindowHeight = 1024;

            break;

        case 7:

            pSettings->wWindowWidth = 1600;

            pSettings->wWindowHeight = 1200;

            break;

    GetDialogItem (pDialog, 3, &itemType, &itemHandle, &itemRect);

    theValue = GetControlValue ((ControlHandle) itemHandle);

    switch (theValue)

        case 1:

            pSettings->wTextureSize = 32;

            break;

        case 2:

            pSettings->wTextureSize = 64;

            break;

        case 3:

            pSettings->wTextureSize = 128;

            break;

        case 4:

            pSettings->wTextureSize = 256;

            break;

        case 5:

            pSettings->wTextureSize = 512;

            break;

        case 6:

            pSettings->wTextureSize = 1024;

            break;

        case 7:

            pSettings->wTextureSize = 2048;

            break;

    GetDialogItem (pDialog, 4, &itemType, &itemHandle, &itemRect);

    theValue = GetControlValue ((ControlHandle) itemHandle);

    switch (theValue)

        case 1:

            pSettings->wOffScreenDepth = 16;

            break;

        case 2:

            pSettings->wOffScreenDepth = 32;

            break;

    GetDialogItem (pDialog, 5, &itemType, &itemHandle, &itemRect);

    pSettings->fFullScreen = GetControlValue ((ControlHandle) itemHandle);

    GetDialogItem (pDialog, 6, &itemType, &itemHandle, &itemRect);

    pSettings->fTryPackedPixel = GetControlValue ((ControlHandle) itemHandle);

    GetDialogItem (pDialog, 7, &itemType, &itemHandle, &itemRect);

    pSettings->fDirectTexturing = GetControlValue ((ControlHandle) itemHandle);

    GetDialogItem (pDialog, 8, &itemType, &itemHandle, &itemRect);

    pSettings->fUseFog = GetControlValue ((ControlHandle) itemHandle);

    GetDialogItem (pDialog, 9, &itemType, &itemHandle, &itemRect);

    pSettings->fVBLSync = GetControlValue ((ControlHandle) itemHandle);

    GetDialogItem (pDialog, 10, &itemType, &itemHandle, &itemRect);

    pSettings->fLoopMovie = GetControlValue ((ControlHandle) itemHandle);

    GetDialogItem (pDialog, 11, &itemType, &itemHandle, &itemRect);

    pSettings->fUseWaitNextEvent = GetControlValue ((ControlHandle) itemHandle);

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

void SetDialogValues (DialogPtr pDialog, struct structMovieSettings * pSettings)

    short       itemType;

    Rect        itemRect;

    Handle      itemHandle;

    GetDialogItem (pDialog, 2, &itemType, &itemHandle, &itemRect);

    switch (pSettings->wWindowWidth)

        case 400:

            SetControlValue ((ControlHandle) itemHandle, 1);

            break;

        case 512:

            SetControlValue ((ControlHandle) itemHandle, 2);

            break;

        case 640:

            SetControlValue ((ControlHandle) itemHandle, 3);

            break;

        case 800:

            SetControlValue ((ControlHandle) itemHandle, 4);

            break;

        case 1024:

            SetControlValue ((ControlHandle) itemHandle, 5);

            break;

        case 1280:

            SetControlValue ((ControlHandle) itemHandle, 6);

            break;

        case 1600:

            SetControlValue ((ControlHandle) itemHandle, 7);

            break;

    GetDialogItem (pDialog, 3, &itemType, &itemHandle, &itemRect);

    switch (pSettings->wTextureSize)

        case 32:

            SetControlValue ((ControlHandle) itemHandle, 1);

            break;

        case 64:

            SetControlValue ((ControlHandle) itemHandle, 2);

            break;

        case 128:

            SetControlValue ((ControlHandle) itemHandle, 3);

            break;

        case 256:

            SetControlValue ((ControlHandle) itemHandle, 4);

            break;

        case 512:

            SetControlValue ((ControlHandle) itemHandle, 5);

            break;

        case 1024:

            SetControlValue ((ControlHandle) itemHandle, 6);

            break;

        case 2048:

            SetControlValue ((ControlHandle) itemHandle, 7);

            break;

    GetDialogItem (pDialog, 4, &itemType, &itemHandle, &itemRect);

    switch (pSettings->wOffScreenDepth)

        case 16:

            SetControlValue ((ControlHandle) itemHandle, 1);

            break;

        case 32:

            SetControlValue ((ControlHandle) itemHandle, 2);

            break;

    GetDialogItem (pDialog, 5, &itemType, &itemHandle, &itemRect);

    SetControlValue ((ControlHandle) itemHandle, pSettings->fFullScreen);

    GetDialogItem (pDialog, 6, &itemType, &itemHandle, &itemRect);

    SetControlValue ((ControlHandle) itemHandle, pSettings->fTryPackedPixel);

    GetDialogItem (pDialog, 7, &itemType, &itemHandle, &itemRect);

    SetControlValue ((ControlHandle) itemHandle, pSettings->fDirectTexturing);

    GetDialogItem (pDialog, 8, &itemType, &itemHandle, &itemRect);

    SetControlValue ((ControlHandle) itemHandle, pSettings->fUseFog);

    GetDialogItem (pDialog, 9, &itemType, &itemHandle, &itemRect);

    SetControlValue ((ControlHandle) itemHandle, pSettings->fVBLSync);

    GetDialogItem (pDialog, 10, &itemType, &itemHandle, &itemRect);

    SetControlValue ((ControlHandle) itemHandle, pSettings->fLoopMovie);

    GetDialogItem (pDialog, 11, &itemType, &itemHandle, &itemRect);

    SetControlValue ((ControlHandle) itemHandle, pSettings->fUseWaitNextEvent);

    // ensure proper initial highlighting

    GetDialogItem (pDialog, 6, &itemType, &itemHandle, &itemRect);

    if (GetControlValue ((ControlHandle) itemHandle) == false)

            GetDialogItem (pDialog, 7, &itemType, &itemHandle, &itemRect);

            HiliteControl ((ControlHandle)itemHandle, 255);

            GetDialogItem (pDialog, 4, &itemType, &itemHandle, &itemRect);

            HiliteControl ((ControlHandle)itemHandle, 255);

    else

            if (!IsMacOSXRuntime ()) // glm not available in Mac OS X

        GetDialogItem (pDialog, 7, &itemType, &itemHandle, &itemRect);

        HiliteControl ((ControlHandle)itemHandle, 0);

            GetDialogItem (pDialog, 4, &itemType, &itemHandle, &itemRect);

            HiliteControl ((ControlHandle)itemHandle, 0);

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

Boolean GetSettings (void)

    DialogPtr   optionsDialog;

    short       itemType, theItem;

    Rect        itemRect;

    Handle      itemHandle;

    Boolean     done = false;

    short       theValue;

    ModalFilterUPP myFilterUPP;

    optionsDialog = GetNewDialog (128, NULL, (WindowPtr) -1);

    if (!optionsDialog)

        return false;

#if !TARGET_API_MAC_CARBON

    SetPort ((GrafPtr) optionsDialog);

#else

    SetPort (GetDialogPort (optionsDialog));

#endif

    SetDialogDefaultItem (optionsDialog, 1) ;

    myFilterUPP = NewModalFilterUPP (OptionsFilter);

    GetPrefs (&gMovieSettings); // will get prefs

    SetDialogValues (optionsDialog, &gMovieSettings);

    if (IsMacOSXRuntime ()) // glm not available in Mac OS X

        // Set to true and disable for direct texturing always

        GetDialogItem (optionsDialog, 7, &itemType, &itemHandle, &itemRect);

        SetControlValue ((ControlHandle) itemHandle, 1);

        HiliteControl ((ControlHandle)itemHandle, 255);

do

        ModalDialog (myFilterUPP, &theItem);

        if (theItem == 1)

            done = true;

            GetDialogValues (optionsDialog, &gMovieSettings);

            SetPrefs (&gMovieSettings); // save prefs

        else if (theItem > 4) // handle check boxes

            GetDialogItem (optionsDialog, theItem, &itemType, &itemHandle, &itemRect);

            theValue = GetControlValue ((ControlHandle) itemHandle);

            theValue = 1 - theValue;

            SetControlValue ((ControlHandle) itemHandle, theValue);

        GetDialogItem (optionsDialog, 6, &itemType, &itemHandle, &itemRect);

        if (GetControlValue ((ControlHandle) itemHandle) == false)

            GetDialogItem (optionsDialog, 7, &itemType, &itemHandle, &itemRect);

            HiliteControl ((ControlHandle)itemHandle, 255);

            GetDialogItem (optionsDialog, 4, &itemType, &itemHandle, &itemRect);

            HiliteControl ((ControlHandle)itemHandle, 255);

        else

                        if (!IsMacOSXRuntime ()) // glm not available in Mac OS X

                            GetDialogItem (optionsDialog, 7, &itemType, &itemHandle, &itemRect);

                            HiliteControl ((ControlHandle)itemHandle, 0);

            GetDialogItem (optionsDialog, 4, &itemType, &itemHandle, &itemRect);

            HiliteControl ((ControlHandle)itemHandle, 0);

    } while (!done);

    DisposeDialog (optionsDialog);

    DisposeModalFilterUPP (myFilterUPP);

    return true;

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

OSErr OpenMovie (Movie * pMovie)

    NavReplyRecord replyNav;

    NavDialogOptions optionsNav;

    NavTypeListHandle   openList    = NULL;

    AEKeyword theKeyword;

    DescType actualType;

    Size actualSize;

    FSSpec fsspecMovie;

    OSType typeList [1] = {MovieFileType};

    short numTypes = 1;

    OSType applicationSignature = FOUR_CHAR_CODE('????');

    short resFile = 0;

    short resID = 0;

    Str255 movieName;

    Boolean wasChanged;

    OSErr anErr;

    //Initialize dialog options structure and set default values

    anErr = NavGetDefaultDialogOptions (&optionsNav);

    optionsNav.dialogOptionFlags -= kNavDontAddTranslateItems;

    optionsNav.dialogOptionFlags = kNavNoTypePopup;

    PStrCopy (optionsNav.clientName, "\pOpenGL Movie");

    optionsNav.location.h = -1;

    optionsNav.location.v = -1;

    PStrCopy (optionsNav.windowTitle, "\p");

    PStrCopy (optionsNav.actionButtonLabel, "\pSelect");

    PStrCopy (optionsNav.cancelButtonLabel, "\p");

    PStrCopy (optionsNav.savedFileName, "\p");

    PStrCopy (optionsNav.message, "\pSelect movie to play.");

    optionsNav.preferenceKey = NULL;

    optionsNav.popupExtension = NULL;

    openList = (NavTypeListHandle) NewOpenHandle (applicationSignature, numTypes, typeList);

    if ( openList )

        HLock((Handle)openList);

    anErr = NavGetFile(NULL, &replyNav, &optionsNav, NULL, NULL, 0, openList, NULL);

    if (anErr == noErr && replyNav.validRecord)

        anErr = AEGetNthPtr (&(replyNav.selection), 1, typeFSS, &theKeyword, &actualType, &fsspecMovie, sizeof (fsspecMovie), &actualSize);

        anErr = OpenMovieFile (&fsspecMovie, &resFile, fsRdPerm);

        if (anErr == noErr)

            anErr = NewMovieFromFile (pMovie, resFile, &resID, movieName, newMovieActive, &wasChanged);

            CloseMovieFile (resFile);

            if (noErr != anErr)

                DebugStr ("\pCould not get movie from file");

        else

            DebugStr ("\pCould open movie file");

        NavDisposeReply(&replyNav);

    if (openList != NULL)

        HUnlock((Handle)openList);

        DisposeHandle((Handle)openList);

    if (NULL == pMovie)

        // user did not select file

        return fnfErr;

    return noErr;

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