mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-01-20 04:34:48 +00:00
8c7ddb7cf1
Added ability to shader features and shaderGen to create multiple instances of the same feature with the option of calling a static creation function that can take arguments in the form of a struct. FEATUREMGR now has createFeature to take advantage of this. The node editor requires this ability as the same node could be used multiple times with different arguments so in its update function we will be calling ```FEATUREMGR->registerFeature(feature_type, (optional default constructor), createFunction);``` then adding it to the feature set with the required arguments to build the shader feature. ```FeatureSet->add(feature_type, index, ParameterStruct);```
147 lines
4.4 KiB
C++
147 lines
4.4 KiB
C++
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#ifndef _FEATURESET_H_
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#define _FEATURESET_H_
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#ifndef _TORQUE_STRING_H_
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#include "core/util/str.h"
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#endif
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#ifndef _TVECTOR_H_
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#include "core/util/tVector.h"
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#endif
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class FeatureType;
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//
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class FeatureSet
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{
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protected:
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struct FeatureInfo
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{
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const FeatureType* type;
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S32 index;
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void* argStruct;
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};
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/// The list of featurs.
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Vector<FeatureInfo> mFeatures;
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/// A string representation of all the
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/// features used for comparisons.
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String mDescription;
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///
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static S32 _typeCmp( const FeatureInfo* a, const FeatureInfo *b );
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///
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void _rebuildDesc();
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public:
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FeatureSet()
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{
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}
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FeatureSet( const FeatureSet &h )
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: mFeatures( h.mFeatures ),
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mDescription( h.mDescription )
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{
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}
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FeatureSet& operator =( const FeatureSet &h );
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/// Equality operators.
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inline bool operator != ( const FeatureSet &h ) const { return h.getDescription() != getDescription(); }
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inline bool operator == ( const FeatureSet &h ) const { return h.getDescription() == getDescription(); }
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bool operator []( const FeatureType &type ) const { return hasFeature( type ); }
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/// Returns true if the feature set is empty.
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bool isEmpty() const { return mFeatures.empty(); }
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/// Returns true if the feature set is not empty.
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bool isNotEmpty() const { return !mFeatures.empty(); }
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/// Return the description string which uniquely identifies this feature set.
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const String& getDescription() const;
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/// Returns the feature count.
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U32 getCount() const { return mFeatures.size(); }
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/// Returns the feature at the index and optionally
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/// the feature index when it was added.
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const FeatureType& getAt( U32 index, S32 *outIndex = NULL ) const;
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void* getArguments(U32 index) const;
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/// Returns true if this handle has this feature.
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bool hasFeature( const FeatureType &type, S32 index = -1 ) const;
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///
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void setFeature( const FeatureType &type, bool set, S32 index = -1 );
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/// <summary>
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/// Adds a feauter to the feature set.
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/// </summary>
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/// <param name="type">The shader feature type.</param>
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/// <param name="index">The inedx the shader feature will be sorted in the set.</param>
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/// <param name="argStruct">A struct representing arguments for a shader feature.</param>
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void addFeature( const FeatureType &type, S32 index = -1, void* argStruct = nullptr );
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///
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void removeFeature( const FeatureType &type );
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///
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S32 getNextFeatureIndex( const FeatureType &type, S32 index ) const;
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/// Removes features that are not in the input set.
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void filter( const FeatureSet &features );
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/// Removes features that are in the input set.
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void exclude( const FeatureSet &features );
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///
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void merge( const FeatureSet &features );
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/// Clears all features.
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void clear();
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/// Default empty feature set.
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static const FeatureSet EmptySet;
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};
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inline const String& FeatureSet::getDescription() const
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{
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// Update the description if its empty and we have features.
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if ( mDescription.isEmpty() && !mFeatures.empty() )
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const_cast<FeatureSet*>(this)->_rebuildDesc();
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return mDescription;
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}
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#endif // _FEATURESET_H_
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