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//

//  File:       VREffects.h

//

//  Contains:   QuickTime video effects support for QuickTime VR movies.

//

//  Written by: Tim Monroe

//

//  Copyright:  © 1997 by Apple Computer, Inc., all rights reserved.

//

//  Change History (most recent first):

//

//     <1>      12/13/96    rtm     first file

//     

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#pragma once

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//

// header files

//

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#include <ImageCompression.h>

#include <ImageCodec.h>

#include "ComApplication.h"

#if TARGET_OS_MAC

#include "MacFramework.h"

#endif

#if TARGET_OS_WIN32

#include "WinFramework.h"

#endif

#include "VRScript.h"

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//

// compiler flags

//

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#define USES_MAKE_IMAGE_DESC_FOR_EFFECT 1       // use MakeImageDescriptionForEffect (QT 4.0 and later)

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//

// constants

//

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#define kSourceOneName                  FOUR_CHAR_CODE('srcA')

#define kSourceTwoName                  FOUR_CHAR_CODE('srcB')

#define kSourceNoneName                 FOUR_CHAR_CODE('srcZ')

#define kDefaultNumSteps                50      // the number of steps in a transition

#define kDoIdleStep                     10      // the number of steps we take before giving scene-wide sound-only movies some idle time

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//

// function prototypes

//

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void                        VREffects_InitWindowData (WindowObject theWindowObject);

void                        VREffects_DumpWindowData (WindowObject theWindowObject);

Boolean                     VREffects_DoIdle (WindowObject theWindowObject);

VRScriptTransitionPtr       VREffects_GetTransitionEffect (WindowObject theWindowObject, UInt32 fromNodeID, UInt32 toNodeID);

QTAtomContainer             VREffects_MakeEffectDescription (OSType theEffectType, long theEffectNum, OSType theSourceName1, OSType theSourceName2);

ImageDescriptionHandle      VREffects_MakeSampleDescription (OSType theEffectType, short theWidth, short theHeight);

OSErr                       VREffects_SetupTransitionEffect (WindowObject theWindowObject, UInt32 fromNodeID, UInt32 toNodeID);

OSErr                       VREffects_RunTransitionEffect (WindowObject theWindowObject);

void                        VREffects_DumpEntryMem (VRScriptTransitionPtr theEntry);