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datablock-temp-clone -- Implements creation of temporary datablock clones to allow late substitution of datablock fields.

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This commit is contained in:
Marc Chapman 2017-07-26 21:10:43 +01:00
parent 83c533249f
commit 43815793d1
24 changed files with 865 additions and 11 deletions
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96
Engine/source/sfx/sfxProfile.cpp
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@ -24,6 +24,7 @@
// Arcane-FX for MIT Licensed Open Source version of Torque 3D from GarageGames
// Copyright (C) 2015 Faust Logic, Inc.
//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~~//
#include "platform/platform.h"
#include "sfx/sfxProfile.h"
@ -96,9 +97,6 @@ SFXProfile::SFXProfile( SFXDescription* desc, const String& filename, bool prelo
//-----------------------------------------------------------------------------
SFXProfile::~SFXProfile()
{
}
//-----------------------------------------------------------------------------
@ -380,3 +378,95 @@ DefineEngineMethod( SFXProfile, getSoundDuration, F32, (),,
{
return ( F32 ) object->getSoundDuration() * 0.001f;
}
// enable this to help verify that temp-clones of AudioProfile are being deleted
//#define TRACK_AUDIO_PROFILE_CLONES
#ifdef TRACK_AUDIO_PROFILE_CLONES
static int audio_prof_clones = 0;
#endif
SFXProfile::SFXProfile(const SFXProfile& other, bool temp_clone) : SFXTrack(other, temp_clone)
{
#ifdef TRACK_AUDIO_PROFILE_CLONES
audio_prof_clones++;
if (audio_prof_clones == 1)
Con::errorf("SFXProfile -- Clones are on the loose!");
#endif
mResource = other.mResource;
mFilename = other.mFilename;
mPreload = other.mPreload;
mBuffer = other.mBuffer; // -- AudioBuffer loaded using mFilename
mChangedSignal = other.mChangedSignal;
}
SFXProfile::~SFXProfile()
{
if (!isTempClone())
return;
// cleanup after a temp-clone
if (mDescription && mDescription->isTempClone())
{
delete mDescription;
mDescription = 0;
}
#ifdef TRACK_AUDIO_PROFILE_CLONES
if (audio_prof_clones > 0)
{
audio_prof_clones--;
if (audio_prof_clones == 0)
Con::errorf("SFXProfile -- Clones eliminated!");
}
else
Con::errorf("SFXProfile -- Too many clones deleted!");
#endif
}
// Clone and perform substitutions on the SFXProfile and on any SFXDescription
// it references.
SFXProfile* SFXProfile::cloneAndPerformSubstitutions(const SimObject* owner, S32 index)
{
if (!owner)
return this;
SFXProfile* sub_profile_db = this;
// look for mDescriptionObject subs
SFXDescription* desc_db;
if (mDescription && mDescription->getSubstitutionCount() > 0)
{
SFXDescription* orig_db = mDescription;
desc_db = new SFXDescription(*orig_db, true);
orig_db->performSubstitutions(desc_db, owner, index);
}
else
desc_db = 0;
if (this->getSubstitutionCount() > 0 || desc_db)
{
sub_profile_db = new SFXProfile(*this, true);
performSubstitutions(sub_profile_db, owner, index);
if (desc_db)
sub_profile_db->mDescription = desc_db;
}
return sub_profile_db;
}
void SFXProfile::onPerformSubstitutions()
{
if ( SFX )
{
// If preload is enabled we load the resource
// and device buffer now to avoid a delay on
// first playback.
if ( mPreload && !_preloadBuffer() )
Con::errorf( "SFXProfile(%s)::onPerformSubstitutions: The preload failed!", getName() );
// We need to get device change notifications.
SFX->getEventSignal().notify( this, &SFXProfile::_onDeviceEvent );
}
}