5a4f962013
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14633 16af8721-9629-0410-8352-f15c8da7e697
441 lines
17 KiB
Objective-C
441 lines
17 KiB
Objective-C
/*
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* Copyright 2006 Sony Computer Entertainment Inc.
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*
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* Licensed under the SCEA Shared Source License, Version 1.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy of the License at:
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* http://research.scea.com/scea_shared_source_license.html
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing permissions and limitations under the
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* License.
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*/
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#ifndef _DAE_CONV_H_
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#define _DAE_CONV_H_
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#include <string>
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#include <dae.h>
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#include <dae/daeURI.h>
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#include <dae/daeElement.h>
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#include <dom/domCommon_color_or_texture_type.h>
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#include <dom/domInputLocalOffset.h>
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#include <dom/domInstance_controller.h>
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#include <osg/Node>
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#include <osg/Notify>
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#include <osgDB/ReaderWriter>
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#include <osgDB/FileNameUtils>
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#include <osgDB/FileUtils>
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#include <osgDB/Registry>
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#include <osg/Material>
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#include <osg/Texture2D>
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#include <osgAnimation/BasicAnimationManager>
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#include <osgAnimation/Bone>
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#include <osgAnimation/Skeleton>
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#ifdef COLLADA_DOM_2_4_OR_LATER
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namespace ColladaDOM141
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{
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#endif
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class domBind_material;
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class domCamera;
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//class domCommon_color_or_texture_type;
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class domCommon_float_or_param_type;
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class domGeometry;
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class domInstance_controller;
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class domInstance_geometry;
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class domInstanceWithExtra;
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class domLight;
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class domLookat;
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class domMatrix;
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class domNode;
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class domP;
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class domProfile_COMMON;
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class domScale;
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class domSkew;
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class domTranslate;
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class domRotate;
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class domVisual_scene;
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#ifdef COLLADA_DOM_2_4_OR_LATER
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}
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using namespace ColladaDOM141;
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#endif
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namespace osgDAE
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{
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class domSourceReader;
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inline daeElement *getElementFromURI( daeURI &uri )
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{
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if ( uri.getState() == daeURI::uri_loaded || uri.getState() == daeURI::uri_pending ) {
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uri.resolveElement();
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}
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return uri.getElement();
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}
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inline daeElement *getElementFromIDRef( daeIDRef &idref )
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{
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if ( idref.getState() == daeIDRef::id_loaded || idref.getState() == daeIDRef::id_pending ) {
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idref.resolveElement();
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}
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return idref.getElement();
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}
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template< typename TInputArray, typename TInputType >
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bool findInputSourceBySemantic( TInputArray& inputs, const char* semantic, daeElement *& element,
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TInputType ** input = NULL, int unit = 0 )
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{
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element = NULL;
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int count = 0;
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for ( size_t i = 0; i < inputs.getCount(); i++ ) {
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if ( !strcmp(semantic, inputs[i]->getSemantic()) ) {
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if ( count == unit )
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{
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element = getElementFromURI( inputs[i]->getSource() );
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*input = (TInputType*)inputs[i];
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return true;
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}
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count++;
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}
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}
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return false;
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}
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/// Convert string to value using it's stream operator
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template <typename T>
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T parseString(const std::string& valueAsString) {
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std::stringstream str;
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str << valueAsString;
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T result;
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str >> result;
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return result;
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}
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inline osg::Vec3 parseVec3String(const std::string& valueAsString)
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{
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std::stringstream str;
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str << valueAsString;
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osg::Vec3 result;
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str >> result.x() >> result.y() >> result.z();
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return result;
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}
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inline osg::Matrix parseMatrixString(const std::string& valueAsString)
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{
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std::stringstream str;
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str << valueAsString;
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osg::Matrix result;
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str >> result(0,0) >> result(1,0) >> result(2,0) >> result(3,0)
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>> result(0,1) >> result(1,1) >> result(2,1) >> result(3,1)
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>> result(0,2) >> result(1,2) >> result(2,2) >> result(3,2)
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>> result(0,3) >> result(1,3) >> result(2,3) >> result(3,3);
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return result;
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}
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/**
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@class daeReader
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@brief Read a OSG scene from a DAE file
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*/
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class daeReader {
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public:
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enum TessellateMode
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{
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TESSELLATE_NONE, ///< Do not tessellate at all (Polygons are stored as GL_POLYGON - not suitable for concave polygons)
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TESSELLATE_POLYGONS_AS_TRIFAN, ///< Tessellate the old way, interpreting polygons as triangle fans (faster, but does not work for concave polygons)
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TESSELLATE_POLYGONS ///< Use full tessellation of polygons (slower, works for concave polygons)
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};
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struct Options
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{
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Options();
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bool strictTransparency;
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int precisionHint; ///< Precision hint flags, as specified in osgDB::Options::PrecisionHint
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bool usePredefinedTextureUnits;
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TessellateMode tessellateMode;
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};
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daeReader(DAE *dae_, const Options * pluginOptions);
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virtual ~daeReader();
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bool convert( std::istream &fin );
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bool convert( const std::string &fileURI );
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osg::Node* getRootNode() { return _rootNode; }
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const std::string& getAssetUnitName() const {return _assetUnitName;}
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float getAssetUnitMeter() const {return _assetUnitMeter;}
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domUpAxisType getAssetUpAxis() const {return _assetUp_axis;}
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enum TextureUnitUsage
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{
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AMBIENT_OCCLUSION_UNIT = 0,
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MAIN_TEXTURE_UNIT,
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TRANSPARENCY_MAP_UNIT
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};
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enum InterpolationType
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{
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INTERPOLATION_UNKNOWN,
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INTERPOLATION_STEP,
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INTERPOLATION_LINEAR,
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INTERPOLATION_BEZIER,
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INTERPOLATION_HERMITE,
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INTERPOLATION_CARDINAL,
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INTERPOLATION_BSPLINE,
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//COLLADA spec states that if interpolation is not specified then
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//interpolation is application defined. Linear is a sensible default.
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INTERPOLATION_DEFAULT = INTERPOLATION_LINEAR
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};
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enum AuthoringTool
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{
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UNKNOWN,
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BLENDER,
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DAZ_STUDIO,
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FBX_CONVERTER,
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AUTODESK_3DS_MAX = FBX_CONVERTER,//3ds Max exports to DAE via Autodesk's FBX converter
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GOOGLE_SKETCHUP,
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MAYA
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};
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class TextureParameters
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{
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public:
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TextureParameters()
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: wrap_s(osg::Texture::REPEAT), wrap_t(osg::Texture::REPEAT),
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filter_min(osg::Texture::LINEAR_MIPMAP_LINEAR), filter_mag(osg::Texture::LINEAR),
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transparent(false), opaque(FX_OPAQUE_ENUM_A_ONE), transparency(1.0f)
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{}
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bool operator < (const TextureParameters& rhs) const
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{
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int diffStr = filename.compare(rhs.filename);
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if (diffStr) return diffStr < 0;
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if (wrap_s != rhs.wrap_s) return wrap_s < rhs.wrap_s;
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if (wrap_t != rhs.wrap_t) return wrap_t < rhs.wrap_t;
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if (filter_min != rhs.filter_min) return filter_min < rhs.filter_min;
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if (filter_mag != rhs.filter_mag) return filter_mag < rhs.filter_mag;
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if (transparency != rhs.transparency) return transparency < rhs.transparency;
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if (opaque != rhs.opaque) return opaque < rhs.opaque;
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if (transparent != rhs.transparent) return transparent < rhs.transparent;
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return border < rhs.border;
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}
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std::string filename;
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osg::Texture::WrapMode wrap_s, wrap_t;
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osg::Texture::FilterMode filter_min, filter_mag;
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osg::Vec4 border;
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//The following parameters are for transparency textures, to handle
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//COLLADA's horrible transparency spec.
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bool transparent;
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domFx_opaque_enum opaque;
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float transparency;
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};
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class ChannelPart : public osg::Referenced
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{
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public:
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std::string name;
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osg::ref_ptr<osgAnimation::KeyframeContainer> keyframes;
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InterpolationType interpolation;
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};
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typedef std::map<domGeometry*, osg::ref_ptr<osg::Geode> > domGeometryGeodeMap;
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typedef std::map<domMaterial*, osg::ref_ptr<osg::StateSet> > domMaterialStateSetMap;
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typedef std::map<std::string, osg::ref_ptr<osg::StateSet> > MaterialStateSetMap;
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typedef std::multimap< daeElement*, domChannel*> daeElementDomChannelMap;
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typedef std::map<domChannel*, osg::ref_ptr<osg::Callback> > domChannelOsgAnimationUpdateCallbackMap;
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typedef std::map<domNode*, osg::ref_ptr<osgAnimation::Bone> > domNodeOsgBoneMap;
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typedef std::map<domNode*, osg::ref_ptr<osgAnimation::Skeleton> > domNodeOsgSkeletonMap;
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typedef std::map<TextureParameters, osg::ref_ptr<osg::Texture2D> > TextureParametersMap;
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typedef std::map<std::pair<const osg::StateSet*, TextureUnitUsage>, std::string> TextureToCoordSetMap;
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typedef std::map<std::string, size_t> IdToCoordIndexMap;
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typedef std::map< daeElement*, domSourceReader > SourceMap;
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typedef std::map< int, osg::IntArray*, std::less<int> > IndexMap;
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typedef std::map< int, osg::Array*, std::less<int> > ArrayMap;
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typedef std::multimap< osgAnimation::Target*, osg::ref_ptr<ChannelPart> > TargetChannelPartMap;
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typedef std::multimap<std::pair<const domMesh*, size_t>, std::pair<osg::ref_ptr<osg::Geometry>, GLuint> > OldToNewIndexMap;
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private:
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bool processDocument( const std::string& );
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void clearCaches();
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// If the node is a bone then it should be added before any other types of
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// node, this function makes that happen.
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static void addChild(osg::Group*, osg::Node*);
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//scene processing
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osg::Group* turnZUp();
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osg::Group* processVisualScene( domVisual_scene *scene );
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osg::Node* processNode( domNode *node, bool skeleton );
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osg::Transform* processOsgMatrixTransform( domNode *node, bool isBone);
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template <typename T>
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inline void getTransparencyCounts(daeDatabase*, int& zero, int& one) const;
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/** Earlier versions of the COLLADA 1.4 spec state that transparency values
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of 0 mean 100% opacity, but this has been changed in later versions to state
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that transparency values of 1 mean 100% opacity. Documents created by
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different tools at different times adhere to different versions of the
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standard. This function looks at all transparency values in the database and
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heuristically decides which way the values should be interpreted.*/
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bool findInvertTransparency(daeDatabase*) const;
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osgAnimation::BasicAnimationManager* processAnimationLibraries(domCOLLADA* document);
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void processAnimationClip(osgAnimation::BasicAnimationManager* pOsgAnimationManager, domAnimation_clip* pDomAnimationClip);
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void processAnimationMap(const TargetChannelPartMap&, osgAnimation::Animation* pOsgAnimation);
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ChannelPart* processSampler(domChannel* pDomChannel, SourceMap &sources);
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void processAnimationChannels(domAnimation* pDomAnimation, TargetChannelPartMap& tcm);
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void processChannel(domChannel* pDomChannel, SourceMap &sources, TargetChannelPartMap& tcm);
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void extractTargetName(const std::string&, std::string&, std::string&, std::string&);
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// Processing of OSG specific info stored in node extras
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osg::Group* processExtras(domNode *node);
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void processNodeExtra(osg::Node* osgNode, domNode *node);
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domTechnique* getOpenSceneGraphProfile(domExtra* extra);
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void processAsset( domAsset *node );
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osg::Group* processOsgSwitch(domTechnique* teq);
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osg::Group* processOsgMultiSwitch(domTechnique* teq);
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osg::Group* processOsgLOD(domTechnique* teq);
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osg::Group* processOsgDOFTransform(domTechnique* teq);
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osg::Group* processOsgSequence(domTechnique* teq);
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// geometry processing
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osg::Geode* getOrCreateGeometry(domGeometry *geom, domBind_material* pDomBindMaterial, const osg::Geode** ppOriginalGeode = NULL);
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osgAnimation::Bone* getOrCreateBone(domNode *pDomNode);
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osgAnimation::Skeleton* getOrCreateSkeleton(domNode *pDomNode);
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osg::Geode* processInstanceGeometry( domInstance_geometry *ig );
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osg::Geode* processMesh(domMesh* pDomMesh);
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osg::Geode* processConvexMesh(domConvex_mesh* pDomConvexMesh);
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osg::Geode* processSpline(domSpline* pDomSpline);
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osg::Geode* processGeometry(domGeometry *pDomGeometry);
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typedef std::vector<domInstance_controller*> domInstance_controllerList;
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void processSkins();
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//Process skins attached to one skeleton
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void processSkeletonSkins(domNode* skeletonRoot, const domInstance_controllerList&);
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void processSkin(domSkin* pDomSkin, domNode* skeletonRoot, osgAnimation::Skeleton*, domBind_material* pDomBindMaterial);
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osg::Node* processMorph(domMorph* pDomMorph, domBind_material* pDomBindMaterial);
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osg::Node* processInstanceController( domInstance_controller *ictrl );
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template< typename T >
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void processSinglePPrimitive(osg::Geode* geode, const domMesh* pDomMesh, const T* group, SourceMap& sources, GLenum mode);
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template< typename T >
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void processMultiPPrimitive(osg::Geode* geode, const domMesh* pDomMesh, const T* group, SourceMap& sources, GLenum mode);
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void processPolylist(osg::Geode* geode, const domMesh* pDomMesh, const domPolylist *group, SourceMap &sources, TessellateMode tessellateMode);
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template< typename T >
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void processPolygons(osg::Geode* geode, const domMesh* pDomMesh, const T *group, SourceMap &sources, GLenum mode, TessellateMode tessellateMode);
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void resolveMeshArrays(const domP_Array&,
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const domInputLocalOffset_Array& inputs, const domMesh* pDomMesh,
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osg::Geometry* geometry, SourceMap &sources,
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std::vector<std::vector<GLuint> >& vertexLists);
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//material/effect processing
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void processBindMaterial( domBind_material *bm, domGeometry *geom, osg::Geode *geode, osg::Geode *cachedGeode );
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void processMaterial(osg::StateSet *ss, domMaterial *mat );
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void processEffect(osg::StateSet *ss, domEffect *effect );
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void processProfileCOMMON(osg::StateSet *ss, domProfile_COMMON *pc );
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bool processColorOrTextureType(const osg::StateSet*,
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domCommon_color_or_texture_type *cot,
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osg::Material::ColorMode channel,
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osg::Material *mat,
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domCommon_float_or_param_type *fop = NULL,
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osg::Texture2D **sa = NULL,
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bool normalizeShininess=false);
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void processTransparencySettings( domCommon_transparent_type *ctt,
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domCommon_float_or_param_type *pTransparency,
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osg::StateSet*,
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osg::Material *material,
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unsigned int diffuseTextureUnit );
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bool GetFloat4Param(xsNCName Reference, domFloat4 &f4) const;
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bool GetFloatParam(xsNCName Reference, domFloat &f) const;
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std::string processImagePath(const domImage*) const;
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osg::Image* processImageTransparency(const osg::Image*, domFx_opaque_enum, float transparency) const;
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osg::Texture2D* processTexture( domCommon_color_or_texture_type_complexType::domTexture *tex, const osg::StateSet*, TextureUnitUsage, domFx_opaque_enum = FX_OPAQUE_ENUM_A_ONE, float transparency = 1.0f);
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bool copyTextureCoordinateSet(const osg::StateSet* ss, const osg::Geometry* cachedGeometry, osg::Geometry* clonedGeometry, const domInstance_material* im, TextureUnitUsage tuu, unsigned int textureUnit);
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//scene objects
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osg::Node* processLight( domLight *dlight );
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osg::Node* processCamera( domCamera *dcamera );
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domNode* getRootJoint(domNode*) const;
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domNode* findJointNode(daeElement* searchFrom, domInstance_controller*) const;
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domNode* findSkeletonNode(daeElement* searchFrom, domInstance_controller*) const;
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/// Return whether the node is used as a bone. Note that while many files
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/// identify joints with type="JOINT", some don't do this, while others
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/// incorrectly identify every node as a joint.
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bool isJoint(const domNode* node) const {return _jointSet.find(node) != _jointSet.end();}
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private:
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DAE *_dae;
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osg::Node* _rootNode;
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osg::ref_ptr<osg::StateSet> _rootStateSet;
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domCOLLADA* _document;
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domVisual_scene* _visualScene;
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std::map<std::string,bool> _targetMap;
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int _numlights;
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domInstance_effect *_currentInstance_effect;
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domEffect *_currentEffect;
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/// Maps an animated element to a domchannel to quickly find which animation influence this element
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// TODO a single element can be animated by multiple channels (with different members like translate.x or morphweights(2) )
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daeElementDomChannelMap _daeElementDomChannelMap;
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/// Maps a domchannel to an animationupdatecallback
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domChannelOsgAnimationUpdateCallbackMap _domChannelOsgAnimationUpdateCallbackMap;
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/// Maps geometry to a Geode
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domGeometryGeodeMap _geometryMap;
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/// All nodes in the document that are used as joints.
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std::set<const domNode*> _jointSet;
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/// Maps a node (of type joint) to a osgAnimation::Bone
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domNodeOsgBoneMap _jointMap;
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/// Maps a node (of type joint) to a osgAnimation::Skeleton
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domNodeOsgSkeletonMap _skeletonMap;
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// Maps material target to stateset
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domMaterialStateSetMap _materialMap;
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// Maps material symbol to stateset
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MaterialStateSetMap _materialMap2;
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TextureParametersMap _textureParamMap;
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TextureToCoordSetMap _texCoordSetMap;
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IdToCoordIndexMap _texCoordIdMap;
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domInstance_controllerList _skinInstanceControllers;
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OldToNewIndexMap _oldToNewIndexMap;
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AuthoringTool _authoringTool;
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bool _invertTransparency;
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Options _pluginOptions;
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// Additional Information
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std::string _assetUnitName;
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float _assetUnitMeter;
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domUpAxisType _assetUp_axis;
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};
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}
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#endif
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