[Hdrflow-svn] SF.net SVN: hdrflow: [376] trunk/lib/openlibraries
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[Hdrflow-svn] SF.net SVN: hdrflow: [376] trunk/lib/openlibraries
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From: <gl...@us...> - 2007-11-06 22:00:48
|
Revision: 376
http://hdrflow.svn.sourceforge.net/hdrflow/?rev=376&view=rev
Author: glslang
Date: 2007-11-06 13:59:54 -0800 (Tue, 06 Nov 2007)
Log Message:
-----------
+ portability fixes
Modified Paths:
--------------
trunk/lib/openlibraries/configure.ac
trunk/lib/openlibraries/src/openimagelib/plugins/jpg/jpg_vc8.vcproj
trunk/lib/openlibraries/src/openobjectlib/plugins/Makefile.am
Added Paths:
-----------
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/Makefile.am
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/config.hpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj.cpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.cpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.hpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.opl
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_vc8.icproj
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_vc8.vcproj
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/spirit.hpp
Removed Paths:
-------------
trunk/lib/openlibraries/src/openobjectlib/plugins/obj/
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/Makefile.am
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/config.hpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj.cpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.cpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.hpp
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.opl
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_vc8.vcproj
trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/spirit.hpp
Modified: trunk/lib/openlibraries/configure.ac
===================================================================
--- trunk/lib/openlibraries/configure.ac 2007-11-06 21:20:38 UTC (rev 375)
+++ trunk/lib/openlibraries/configure.ac 2007-11-06 21:59:54 UTC (rev 376)
@@ -367,8 +367,8 @@
src/openobjectlib/sg/Makefile
src/openobjectlib/plugins/Makefile
src/openobjectlib/plugins/3ds/Makefile
-src/openobjectlib/plugins/obj/Makefile
src/openobjectlib/plugins/X3D/Makefile
+src/openobjectlib/plugins/wavefront/Makefile
src/openassetlib/Makefile
src/openassetlib/al/Makefile
src/openassetlib/py/Makefile
Modified: trunk/lib/openlibraries/src/openimagelib/plugins/jpg/jpg_vc8.vcproj
===================================================================
--- trunk/lib/openlibraries/src/openimagelib/plugins/jpg/jpg_vc8.vcproj 2007-11-06 21:20:38 UTC (rev 375)
+++ trunk/lib/openlibraries/src/openimagelib/plugins/jpg/jpg_vc8.vcproj 2007-11-06 21:59:54 UTC (rev 376)
@@ -41,11 +41,11 @@
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories=""$(SolutionDir)\src";"C:\Boost\include\boost-1_34_1";"C:\Program Files\HDR\include""
- PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;IL_EXPORTS;OPENIMAGELIB_BUILD;HAVE_FLEX_STRING;HAVE_JPEGHDR"
+ PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;IL_EXPORTS;OPENIMAGELIB_BUILD;HAVE_FLEX_STRING"
MinimalRebuild="true"
ExceptionHandling="2"
BasicRuntimeChecks="3"
- RuntimeLibrary="1"
+ RuntimeLibrary="3"
BufferSecurityCheck="true"
EnableEnhancedInstructionSet="0"
TreatWChar_tAsBuiltInType="true"
Modified: trunk/lib/openlibraries/src/openobjectlib/plugins/Makefile.am
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/Makefile.am 2007-11-06 21:20:38 UTC (rev 375)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/Makefile.am 2007-11-06 21:59:54 UTC (rev 376)
@@ -3,4 +3,4 @@
#
#
-SUBDIRS = 3ds obj X3D
+SUBDIRS = 3ds X3D wavefront
Copied: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront (from rev 351, trunk/lib/openlibraries/src/openobjectlib/plugins/obj)
Deleted: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/Makefile.am
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/obj/Makefile.am 2007-10-08 21:33:45 UTC (rev 351)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/Makefile.am 2007-11-06 21:59:54 UTC (rev 376)
@@ -1,32 +0,0 @@
-
-#
-#
-#
-
-libdir = $(OPENOBJECTLIB_PLUGINPATH)
-
-lib_LTLIBRARIES = libopenobjectlib_obj.la
-
-libopenobjectlib_obj_la_SOURCES = \
- config.hpp \
- obj.cpp \
- obj_plugin.hpp \
- obj_plugin.cpp \
- spirit.hpp
-
-libopenobjectlib_obj_la_CXXFLAGS = \
- $(BOOST_INCLUDE_PATH) \
- -DOBJ_EXPORTS
-
-libopenobjectlib_obj_la_LIBADD = \
- $(BOOST_FILESYSTEM_LIBS)
-
-libopenobjectlib_obj_la_LDFLAGS = \
- $(OLIB_LDFLAGS) \
- $(BOOST_LIB_PATH) \
- -version-info $(OL_LT_CURRENT):$(OL_LT_REVISION):$(OL_LT_AGE)
-
-libopenobjectlib_obj_ladir = $(OPENOBJECTLIB_PLUGINPATH)
-libopenobjectlib_obj_la_DATA = obj_plugin.opl
-
-nobase_dist_libopenobjectlib_obj_la_DATA = obj_plugin.opl
Copied: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/Makefile.am (from rev 375, trunk/lib/openlibraries/src/openobjectlib/plugins/obj/Makefile.am)
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/Makefile.am (rev 0)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/Makefile.am 2007-11-06 21:59:54 UTC (rev 376)
@@ -0,0 +1,32 @@
+
+#
+#
+#
+
+libdir = $(OPENOBJECTLIB_PLUGINPATH)
+
+lib_LTLIBRARIES = libopenobjectlib_obj.la
+
+libopenobjectlib_obj_la_SOURCES = \
+ config.hpp \
+ obj.cpp \
+ obj_plugin.hpp \
+ obj_plugin.cpp \
+ spirit.hpp
+
+libopenobjectlib_obj_la_CXXFLAGS = \
+ $(BOOST_INCLUDE_PATH) \
+ -DOBJ_EXPORTS
+
+libopenobjectlib_obj_la_LIBADD = \
+ $(BOOST_FILESYSTEM_LIBS)
+
+libopenobjectlib_obj_la_LDFLAGS = \
+ $(OLIB_LDFLAGS) \
+ $(BOOST_LIB_PATH) \
+ -version-info $(OL_LT_CURRENT):$(OL_LT_REVISION):$(OL_LT_AGE)
+
+libopenobjectlib_obj_ladir = $(OPENOBJECTLIB_PLUGINPATH)
+libopenobjectlib_obj_la_DATA = obj_plugin.opl
+
+nobase_dist_libopenobjectlib_obj_la_DATA = obj_plugin.opl
Deleted: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/config.hpp
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/obj/config.hpp 2007-10-08 21:33:45 UTC (rev 351)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/config.hpp 2007-11-06 21:59:54 UTC (rev 376)
@@ -1,25 +0,0 @@
-
-// OBJ - An OBJ plugin to sg.
-
-// Copyright (C) 2005-2006 VM Inc.
-// Released under the LGPL.
-// For more information, see http://www.openlibraries.org.
-
-#ifndef OBJ_CONFIG_INC_
-#define OBJ_CONFIG_INC_
-
-#ifdef WIN32
-# ifdef OBJ_EXPORTS
-# define OBJ_DECLSPEC __declspec( dllexport )
-# else
-# define OBJ_DECLSPEC __declspec( dllimport )
-# endif
-#else
-# ifdef OBJ_EXPORTS
-# define OBJ_DECLSPEC __attribute__( ( visibility( "default" ) ) )
-# else
-# define OBJ_DECLSPEC __attribute__( ( visibility( "default" ) ) )
-# endif
-#endif
-
-#endif
Copied: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/config.hpp (from rev 375, trunk/lib/openlibraries/src/openobjectlib/plugins/obj/config.hpp)
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/config.hpp (rev 0)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/config.hpp 2007-11-06 21:59:54 UTC (rev 376)
@@ -0,0 +1,25 @@
+
+// OBJ - An OBJ plugin to sg.
+
+// Copyright (C) 2005-2006 VM Inc.
+// Released under the LGPL.
+// For more information, see http://www.openlibraries.org.
+
+#ifndef OBJ_CONFIG_INC_
+#define OBJ_CONFIG_INC_
+
+#ifdef WIN32
+# ifdef OBJ_EXPORTS
+# define OBJ_DECLSPEC __declspec( dllexport )
+# else
+# define OBJ_DECLSPEC __declspec( dllimport )
+# endif
+#else
+# ifdef OBJ_EXPORTS
+# define OBJ_DECLSPEC __attribute__( ( visibility( "default" ) ) )
+# else
+# define OBJ_DECLSPEC __attribute__( ( visibility( "default" ) ) )
+# endif
+#endif
+
+#endif
Deleted: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj.cpp
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/obj/obj.cpp 2007-10-08 21:33:45 UTC (rev 351)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj.cpp 2007-11-06 21:59:54 UTC (rev 376)
@@ -1,33 +0,0 @@
-
-// OBJ - An OBJ plugin to sg.
-
-// Copyright (C) 2005-2006 VM Inc.
-// Released under the LGPL.
-// For more information, see http://www.openlibraries.org.
-
-#include <openobjectlib/plugins/obj/obj_plugin.hpp>
-
-namespace opl = olib::openpluginlib;
-namespace OBJ = olib::openobjectlib::plugins::OBJ;
-
-extern "C"
-{
- OBJ_DECLSPEC bool openplugin_init( void )
- {
- return true;
- }
-
- OBJ_DECLSPEC bool openplugin_uninit( void )
- {
- return true;
- }
-
- OBJ_DECLSPEC bool openplugin_create_plugin( const char*, opl::openplugin** plug )
- {
- *plug = new OBJ::OBJ_plugin;
- return true;
- }
-
- OBJ_DECLSPEC void openplugin_destroy_plugin( opl::openplugin* plug )
- { delete static_cast<OBJ::OBJ_plugin*>( plug ); }
-}
Copied: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj.cpp (from rev 375, trunk/lib/openlibraries/src/openobjectlib/plugins/obj/obj.cpp)
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj.cpp (rev 0)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj.cpp 2007-11-06 21:59:54 UTC (rev 376)
@@ -0,0 +1,33 @@
+
+// OBJ - An OBJ plugin to sg.
+
+// Copyright (C) 2005-2006 VM Inc.
+// Released under the LGPL.
+// For more information, see http://www.openlibraries.org.
+
+#include <openobjectlib/plugins/obj/obj_plugin.hpp>
+
+namespace opl = olib::openpluginlib;
+namespace OBJ = olib::openobjectlib::plugins::OBJ;
+
+extern "C"
+{
+ OBJ_DECLSPEC bool openplugin_init( void )
+ {
+ return true;
+ }
+
+ OBJ_DECLSPEC bool openplugin_uninit( void )
+ {
+ return true;
+ }
+
+ OBJ_DECLSPEC bool openplugin_create_plugin( const char*, opl::openplugin** plug )
+ {
+ *plug = new OBJ::OBJ_plugin;
+ return true;
+ }
+
+ OBJ_DECLSPEC void openplugin_destroy_plugin( opl::openplugin* plug )
+ { delete static_cast<OBJ::OBJ_plugin*>( plug ); }
+}
Deleted: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.cpp
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/obj/obj_plugin.cpp 2007-10-08 21:33:45 UTC (rev 351)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.cpp 2007-11-06 21:59:54 UTC (rev 376)
@@ -1,1172 +0,0 @@
-
-// OBJ - An OBJ plugin to sg.
-
-// Copyright (C) 2005-2006 VM Inc.
-// Released under the LGPL.
-// For more information, see http://www.openlibraries.org.
-
-#include <algorithm>
-#include <map>
-#include <string>
-#include <vector>
-
-#include <boost/filesystem/fstream.hpp>
-#include <boost/tokenizer.hpp>
-
-#include <openpluginlib/pl/geometry.hpp>
-#include <openpluginlib/pl/property.hpp>
-#include <openpluginlib/pl/utf8_utils.hpp>
-
-#include <openobjectlib/sg/appearance.hpp>
-#include <openobjectlib/sg/spatial.hpp>
-#include <openobjectlib/sg/meshes.hpp>
-
-#include <openobjectlib/plugins/obj/obj_plugin.hpp>
-#include <openobjectlib/plugins/obj/spirit.hpp>
-
-namespace fs = boost::filesystem;
-namespace spirit = boost::spirit;
-namespace opl = olib::openpluginlib;
-namespace sg = olib::openobjectlib::sg;
-
-namespace olib { namespace openobjectlib { namespace plugins { namespace OBJ {
-
-namespace
-{
- opl::string get_base_url( const opl::string& url )
- {
-#ifdef WIN32
- size_t pos = url.find_last_of( '\\' );
- if( pos != opl::string::npos )
- return opl::string( url.begin( ), url.begin( ) + pos + 1 );
-#else
- return opl::string( url.begin( ), url.begin( ) + url.find_last_of( '/' ) + 1 );
-#endif
- return opl::string( );
- }
-
- ///////////////////////////////////////////////////////////////
- // grammar state
- struct material_state
- {
- explicit material_state( const opl::string& name_ )
- : ka( 0.2f, 0.2f, 0.2f )
- , kd( 0.8f, 0.8f, 0.8f )
- , ks( 0.2f, 0.2f, 0.2f )
- , tf( 1.0f, 1.0f, 1.0f )
- , ns( 65.0f )
- , name( name_ )
- { }
-
- opl::vec3f ka, kd, ks, tf;
- float ns;
- float sharpness;
- opl::string name;
- opl::string map_kd;
- };
-
- struct group_state
- {
- typedef std::vector<int> vec_ints;
-
- explicit group_state( const opl::string& mtl_ )
- : mtl( mtl_ )
- { }
-
- vec_ints vi, vni, vti;
- opl::string mtl;
- };
-
- struct grammar_state
- {
- typedef std::vector<float> vec_floats;
- typedef std::vector<int> vec_ints;
- typedef std::map<opl::string, group_state> groups;
- typedef std::map<opl::string, material_state> materials;
-
- explicit grammar_state( )
- : grp( 0 )
- , mtl( 0 )
- { set_group( "default" ); }
-
-
- // XXX merge these two members by means of templates.
- // XXX this totally sucks. needs a revamp ASAP.
- void set_group( const opl::string& name )
- {
- typedef groups::iterator iterator;
-
- iterator I = group.find( name );
- if( I != group.end( ) )
- {
- grp = &( I->second );
- }
- else
- {
- opl::string mtl_name( "default" );
-
- if( mtl ) mtl_name = mtl->name;
-
- grp = &( group.insert( groups::value_type( name, group_state( mtl_name ) ) ).first->second );
- }
- }
-
- void set_material( const opl::string& name )
- {
- typedef materials::iterator iterator;
-
- iterator I = material.find( name );
- if( I != material.end( ) )
- {
- mtl = &( I->second );
- }
- else
- {
- mtl = &( material.insert( materials::value_type( name, material_state( name ) ) ).first->second );
- }
-
- grp->mtl = name;
- }
-
- groups group;
- materials material;
- vec_floats v, vn, vt;
-
- group_state* grp;
- material_state* mtl;
- };
-
- ///////////////////////////////////
- /// functors
- class geometry_action
- {
- public:
- explicit geometry_action( grammar_state::vec_floats& v )
- : v_( v )
- { }
-
- void operator( )( const char* first, const char* last ) const
- { v_.push_back( static_cast<float>( atof( opl::string( first, last ).c_str( ) ) ) ); }
-
- private:
- grammar_state::vec_floats& v_;
- };
-
- //
- class topology_action
- {
- public:
- explicit topology_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- {
- const char* iter = first;
-
- for( ; iter != last && *iter != '/'; ++iter )
- ;
-
- gs_.grp->vi.push_back( atoi( opl::string( first, iter ).c_str( ) ) - 1 );
-
- // texture
- if( iter != last && *++iter != '/' )
- {
- for( ; iter != last && *iter != '/'; ++iter )
- ;
-
- gs_.grp->vti.push_back( atoi( opl::string( first, iter ).c_str( ) ) - 1 );
- }
-
- // normal
- if( iter != last )
- {
- first = ++iter;
-
- gs_.grp->vni.push_back( atoi( opl::string( first, last ).c_str( ) ) - 1 );
- }
- }
-
- private:
- grammar_state& gs_;
- };
-
- //
- class topology_wrap_up_action
- {
- public:
- explicit topology_wrap_up_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* /*first*/, const char* /*last*/ ) const
- {
- gs_.grp->vi.push_back( -1 );
- gs_.grp->vni.push_back( -1 );
- gs_.grp->vti.push_back( -1 );
- }
-
- private:
- grammar_state& gs_;
- };
-
- //
- struct group_action
- {
- explicit group_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- {
- opl::string s;
-
- if( ++first == last )
- s.assign( "default" );
- else
- s.assign( ++first, last ); // XXX needs a proper trim left and trim right.
-
- gs_.set_group( s );
- }
-
- grammar_state& gs_;
- };
-
- //
- struct use_material_action
- {
- explicit use_material_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- { gs_.set_material( opl::string( first, last ) ); }
-
- grammar_state& gs_;
- };
-
- //
- struct material_action
- {
- explicit material_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- { gs_.set_material( opl::string( first, last ) ); }
-
- grammar_state& gs_;
- };
-
- //
- opl::vec3f extract_vec3f_info( const opl::string& str )
- {
- typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
-
- opl::vec3f vec;
-
- std::string st( str.c_str( ) );
-
- boost::char_separator<char> sep( " \t" );
- tokenizer tok( st.begin( ), st.end( ), sep );
-
- tokenizer::const_iterator I = tok.begin( );
- if( I != tok.end( ) )
- vec[ 0 ] = static_cast<float>( strtod( I->c_str( ), 0 ) );
- ++I;
-
- if( I != tok.end( ) )
- vec[ 1 ] = static_cast<float>( strtod( I->c_str( ), 0 ) );
- ++I;
-
- if( I != tok.end( ) )
- vec[ 2 ] = static_cast<float>( strtod( I->c_str( ), 0 ) );
- ++I;
-
- return vec;
- }
-
- struct ka_action
- {
- explicit ka_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- {
- opl::string tmp( first, last );
- opl::vec3f ka = extract_vec3f_info( tmp );
-
- gs_.mtl->ka = ka;
- }
-
- grammar_state& gs_;
- };
-
- struct kd_action
- {
- explicit kd_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- {
- opl::string tmp( first, last );
- opl::vec3f kd = extract_vec3f_info( tmp );
-
- gs_.mtl->kd = kd;
- }
-
- grammar_state& gs_;
- };
-
- struct ks_action
- {
- explicit ks_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- {
- opl::string tmp( first, last );
- opl::vec3f ks = extract_vec3f_info( tmp );
-
- gs_.mtl->ks = ks;
- }
-
- grammar_state& gs_;
- };
-
- struct map_kd_action
- {
- explicit map_kd_action( grammar_state& gs )
- : gs_( gs )
- { }
-
- void operator( )( const char* first, const char* last ) const
- {
- opl::string tmp( first, last );
-
- gs_.mtl->map_kd = tmp;
- }
-
- grammar_state& gs_;
- };
-
- ///////////////////////////////////////////////////////////////
- // skip grammar (whitespace and comments)
- struct skip_grammar : public spirit::grammar<skip_grammar>
- {
- template<class ScannerT>
- struct definition
- {
- definition( const skip_grammar& /*self*/)
- {
- skip
- = spirit::space_p
- | spirit::comment_p( "#" )
- ;
-
-# ifndef NDEBUG
- BOOST_SPIRIT_DEBUG_NODE( skip );
-# endif
- }
-
- spirit::rule<ScannerT> skip;
-
- const spirit::rule<ScannerT>& start( ) const
- { return skip; }
- };
- };
-
- //////////////////////////////////////////////////////////////
- // obj material grammar.
- struct mtl_grammar : public spirit::grammar<mtl_grammar>
- {
- mtl_grammar( grammar_state& eval_ )
- : eval( eval_ )
- { }
-
- template<class ScannerT>
- struct definition
- {
- definition( const mtl_grammar& self )
- {
- using namespace boost::spirit;
-
- keywords
- = "newmtl", "Ka", "Kd", "Ks", "illum", "Ns", "d", "map_Kd", "Tf"
- ;
-
- NEWMTL = strlit<>( "newmtl" );
- KA = strlit<>( "Ka" );
- KD = strlit<>( "Kd" );
- KS = strlit<>( "Ks" );
- ILLUM = strlit<>( "illum" );
- NS = strlit<>( "Ns" );
- NI = strlit<>( "Ni" );
- D = strlit<>( "d" );
- MAP_KD = strlit<>( "map_Kd" );
- TF = strlit<>( "Tf" );
- REFL = strlit<>( "refl" );
- REFLTYPE = strlit<>( "-type" );
- REFLMM = strlit<>( "-mm" );
- REFLCLAMP = strlit<>( "-clamp" );
- SHARPNESS = strlit<>( "sharpness" );
- ON = strlit<>( "on" );
- OFF = strlit<>( "off" );
-
- INTEGER_DECIMAL_CONSTANT
- = lexeme_d[ +digit_p ]
- ;
-
- INTEGER_CONSTANT
- = INTEGER_DECIMAL_CONSTANT
- ;
-
- FLOAT_CONSTANT_1 // 12345[eE][+-]123[lLfF]?
- = lexeme_d
- [
- +digit_p
- >> ( chlit<>( 'e' ) | chlit<>( 'E' ) )
- >> !sign_p
- >> +digit_p
- >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
- ]
- ;
-
- FLOAT_CONSTANT_2 // .123([[eE][+-]123)?[lLfF]?
- = lexeme_d
- [
-
- *digit_p
- >> chlit<>('.')
- >> +digit_p
- >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
- >> !sign_p
- >> +digit_p
- )
- >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
- ]
- ;
-
- FLOAT_CONSTANT_3 // 12345.([[eE][+-]123)?[lLfF]?
- = lexeme_d
- [
- +digit_p
- >> chlit<>( '.' )
- >> *digit_p
- >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
- >> !sign_p
- >> +digit_p
- )
- >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
- ]
- ;
-
- FLOAT_CONSTANT
- = FLOAT_CONSTANT_1
- | FLOAT_CONSTANT_2
- | FLOAT_CONSTANT_3
- ;
-
- CONSTANT
- = !sign_p >> longest_d[ FLOAT_CONSTANT | INTEGER_CONSTANT ]
- ;
-
-
- IDENTIFIER
- = lexeme_d
- [
- ( ( alpha_p | '_' | '$' ) >> *( alnum_p | '_' | '$' | '-' | '.' ) ) - ( keywords >> anychar_p - ( alnum_p | '_' | '$' ) )
- ]
- ;
-
- newmtl
- = NEWMTL >> IDENTIFIER[ material_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
- >> *( ka | kd | ks | ns | ni | illum | d | sharpness | tf | refl | map_Kd )
- ;
-
- ka
- = KA >> ( CONSTANT >> CONSTANT >> CONSTANT )[ ka_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
- ;
-
- kd = KD >> ( CONSTANT >> CONSTANT >> CONSTANT )[ kd_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
- ;
-
- ks = KS >> ( CONSTANT >> CONSTANT >> CONSTANT )[ ks_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
- ;
-
- ns = NS >> CONSTANT
- ;
-
- ni = NI >> CONSTANT
- ;
-
- sharpness
- = SHARPNESS >> CONSTANT
- ;
-
- illum
- = ILLUM >> CONSTANT
- ;
-
- d
- = D >> CONSTANT
- ;
-
- map_Kd
- = MAP_KD >> IDENTIFIER[ map_kd_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
- ;
-
- tf
- = TF >> ( CONSTANT >> CONSTANT >> CONSTANT )
- ;
-
- reflmm
- = REFLMM >> CONSTANT >> CONSTANT
- ;
-
- reflclamp
- = REFLCLAMP >> ( ON | OFF )
- ;
-
- refl
- = REFL >> REFLTYPE >> IDENTIFIER >> !( reflmm | reflclamp ) >> IDENTIFIER
- ;
-
- unit
- = *newmtl
- ;
-
-# ifndef NDEBUG
- BOOST_SPIRIT_DEBUG_NODE( INTEGER_DECIMAL_CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( INTEGER_CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_1 );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_2 );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_3 );
- BOOST_SPIRIT_DEBUG_NODE( CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( ILLUM );
- BOOST_SPIRIT_DEBUG_NODE( NS );
- BOOST_SPIRIT_DEBUG_NODE( NI );
- BOOST_SPIRIT_DEBUG_NODE( KS );
- BOOST_SPIRIT_DEBUG_NODE( KD );
- BOOST_SPIRIT_DEBUG_NODE( KA );
- BOOST_SPIRIT_DEBUG_NODE( D );
- BOOST_SPIRIT_DEBUG_NODE( NEWMTL );
- BOOST_SPIRIT_DEBUG_NODE( IDENTIFIER );
- BOOST_SPIRIT_DEBUG_NODE( MAP_KD );
- BOOST_SPIRIT_DEBUG_NODE( TF );
- BOOST_SPIRIT_DEBUG_NODE( SHARPNESS );
- BOOST_SPIRIT_DEBUG_NODE( REFL );
- BOOST_SPIRIT_DEBUG_NODE( REFLTYPE );
- BOOST_SPIRIT_DEBUG_NODE( REFLMM );
- BOOST_SPIRIT_DEBUG_NODE( REFLCLAMP );
- BOOST_SPIRIT_DEBUG_NODE( ON );
- BOOST_SPIRIT_DEBUG_NODE( OFF );
- BOOST_SPIRIT_DEBUG_NODE( unit );
- BOOST_SPIRIT_DEBUG_NODE( newmtl );
- BOOST_SPIRIT_DEBUG_NODE( ka );
- BOOST_SPIRIT_DEBUG_NODE( kd );
- BOOST_SPIRIT_DEBUG_NODE( ks );
- BOOST_SPIRIT_DEBUG_NODE( ns );
- BOOST_SPIRIT_DEBUG_NODE( ni );
- BOOST_SPIRIT_DEBUG_NODE( illum );
- BOOST_SPIRIT_DEBUG_NODE( d );
- BOOST_SPIRIT_DEBUG_NODE( map_Kd );
- BOOST_SPIRIT_DEBUG_NODE( tf );
- BOOST_SPIRIT_DEBUG_NODE( sharpness );
- BOOST_SPIRIT_DEBUG_NODE( refl );
- BOOST_SPIRIT_DEBUG_NODE( reflmm );
- BOOST_SPIRIT_DEBUG_NODE( reflclamp );
-# endif
- }
-
- spirit::symbols<> keywords;
-
- spirit::rule<ScannerT> unit, newmtl, ka, kd, ks, ns, ni, illum, d, map_Kd, tf, sharpness, refl, reflmm, reflclamp;
- spirit::rule<ScannerT> IDENTIFIER, NEWMTL, KA, KD, KS, NS, NI, ILLUM, SHARPNESS;
- spirit::rule<ScannerT> INTEGER_DECIMAL_CONSTANT, INTEGER_CONSTANT;
- spirit::rule<ScannerT> FLOAT_CONSTANT, FLOAT_CONSTANT_1, FLOAT_CONSTANT_2;
- spirit::rule<ScannerT> FLOAT_CONSTANT_3, CONSTANT, D, MAP_KD, TF;
- spirit::rule<ScannerT> REFL, REFLTYPE, REFLMM, REFLCLAMP, ON, OFF;
-
- const spirit::rule<ScannerT>& start( ) const
- { return unit; }
- };
-
- grammar_state& eval;
- };
-
- //////////////////////////////////////////////////////////////
- // obj grammar. some may think is a bit overkill to use a
- // spirit grammar for the obj format. however, using spirit
- // here gives us good insight on how spirit may be used for
- // more interesting grammars like the sg fx one.
- struct OBJ_grammar : public spirit::grammar<OBJ_grammar>
- {
- OBJ_grammar( grammar_state& eval_ )
- : eval( eval_ )
- { }
-
- template<class ScannerT>
- struct definition
- {
- struct load_material_action
- {
- explicit load_material_action( const fs::path& base_url, grammar_state& gs )
- : gs_( gs )
- , base_url_( base_url )
- { }
-
- void operator( )( const char* first, const char* last ) const
- {
- fs::path orig_path( std::string( first, last ), fs::native );
-
- fs::ifstream file;
- file.open( orig_path, std::ios::in );
- if( !file.is_open( ) )
- {
- file.open( base_url_ / orig_path, std::ios::in );
- if( !file.is_open( ) )
- return;
- }
-
- file.unsetf( std::ios::skipws );
-
- std::string mtl( ( std::istreambuf_iterator<char>( file ) ), std::istreambuf_iterator<char>( ) );
-
- mtl_grammar mtl_g( gs_ );
- skip_grammar skip_g;
-
-# ifndef NDEBUG
- BOOST_SPIRIT_DEBUG_NODE( mtl_g );
- BOOST_SPIRIT_DEBUG_NODE( skip_g );
-# endif
-
- spirit::parse_info<> result = spirit::parse( mtl.c_str( ), mtl_g, skip_g );
- }
-
- grammar_state& gs_;
- fs::path base_url_;
- };
-
- static const int RESERVE_SIZE = 1000;
-
- //////////////////////////////////////////////////
- // grammar definition
- definition( const OBJ_grammar& self )
- : V( 'v' )
- , N( 'n' )
- , T( 't' )
- , F( 'f' )
- , U( 'u' )
- , G( 'g' )
- , S( 's' )
- , O( 'o' )
- , SLASH( '/' )
- {
- using namespace boost::spirit;
-
- keywords
- = "v", "vn", "vt", "f", "g", "s", "u", "mtllib", "usemtl", "on", "off"
- ;
-
- MTLLIB = strlit<>( "mtllib" );
- USEMTL = strlit<>( "usemtl" );
- ON = strlit<>( "on" );
- OFF = strlit<>( "off" );
-
- IDENTIFIER
- = lexeme_d
- [
- ( ( alpha_p | '_' | '$' ) >> *( alnum_p | '_' | '$' | '-' | '.' ) ) - ( keywords >> anychar_p - ( alnum_p | '_' | '$' ) )
- ]
- ;
-
- INTEGER_DECIMAL_CONSTANT
- = lexeme_d[ +digit_p ]
- ;
-
- INTEGER_CONSTANT
- = INTEGER_DECIMAL_CONSTANT
- ;
-
- FLOAT_CONSTANT_1 // 12345[eE][+-]123[lLfF]?
- = lexeme_d
- [
- +digit_p
- >> ( chlit<>( 'e' ) | chlit<>( 'E' ) )
- >> !sign_p
- >> +digit_p
- >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
- ]
- ;
-
- FLOAT_CONSTANT_2 // .123([[eE][+-]123)?[lLfF]?
- = lexeme_d
- [
-
- *digit_p
- >> chlit<>('.')
- >> +digit_p
- >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
- >> !sign_p
- >> +digit_p
- )
- >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
- ]
- ;
-
- FLOAT_CONSTANT_3 // 12345.([[eE][+-]123)?[lLfF]?
- = lexeme_d
- [
- +digit_p
- >> chlit<>( '.' )
- >> *digit_p
- >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
- >> !sign_p
- >> +digit_p
- )
- >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
- ]
- ;
-
- FLOAT_CONSTANT
- = FLOAT_CONSTANT_1
- | FLOAT_CONSTANT_2
- | FLOAT_CONSTANT_3
- ;
-
- CONSTANT
- = !sign_p >> longest_d[ FLOAT_CONSTANT | INTEGER_CONSTANT ]
- ;
-
- vertex_element
- = V
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.v ) ]
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.v ) ]
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.v ) ]
- ;
-
- normal_element
- = V >> N
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vn ) ]
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vn ) ]
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vn ) ]
- ;
-
- texcoord_element
- = V >> T
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vt ) ]
- >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vt ) ]
- >> ( *CONSTANT )
- ;
-
- face // can be one of %d, %d//%d, %d/%d, %d/%d/%d
- = longest_d
- [
- INTEGER_CONSTANT
- | INTEGER_CONSTANT >> SLASH >> SLASH >> INTEGER_CONSTANT
- | INTEGER_CONSTANT >> SLASH >> INTEGER_CONSTANT
- | INTEGER_CONSTANT >> SLASH >> INTEGER_CONSTANT >> SLASH >> INTEGER_CONSTANT
- ]
- [ topology_action( ( const_cast<OBJ_grammar&>( self ) ).eval ) ]
- ;
-
- face_element
- = ( F >> face >> face >> face >> *face )
- [ topology_wrap_up_action( ( const_cast<OBJ_grammar&>( self ) ).eval ) ]
- ;
-
- material_element
- = MTLLIB >> IDENTIFIER[ load_material_action( self.base_url_, ( const_cast<OBJ_grammar&>( self ) ).eval ) ]
- ;
-
- usemtl_element
- = USEMTL >> IDENTIFIER[ use_material_action( ( const_cast<OBJ_grammar&>( self ) ).eval ) ]
- ;
-
- group_element
- = ( G >> *IDENTIFIER )[ group_action( ( const_cast<OBJ_grammar&>( self ) ).eval ) ]
- ;
-
- smoothing_group_element
- = S >> ( INTEGER_CONSTANT | ON | OFF )
- ;
-
- theo_element
- = ( O >> *IDENTIFIER )
- ;
-
- elements
- = vertex_element
- | normal_element
- | texcoord_element
- | face_element
- | material_element
- | group_element
- | smoothing_group_element
- | theo_element
- | usemtl_element
- ;
-
- unit
- = *elements
- ;
-
- #ifndef NDEBUG
- BOOST_SPIRIT_DEBUG_NODE( INTEGER_DECIMAL_CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( INTEGER_CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_1 );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_2 );
- BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_3 );
- BOOST_SPIRIT_DEBUG_NODE( CONSTANT );
- BOOST_SPIRIT_DEBUG_NODE( IDENTIFIER );
- BOOST_SPIRIT_DEBUG_NODE( MTLLIB );
- BOOST_SPIRIT_DEBUG_NODE( USEMTL );
- BOOST_SPIRIT_DEBUG_NODE( ON );
- BOOST_SPIRIT_DEBUG_NODE( OFF );
-
- BOOST_SPIRIT_DEBUG_NODE( unit );
- BOOST_SPIRIT_DEBUG_NODE( elements );
- BOOST_SPIRIT_DEBUG_NODE( vertex_element );
- BOOST_SPIRIT_DEBUG_NODE( normal_element );
- BOOST_SPIRIT_DEBUG_NODE( texcoord_element );
- BOOST_SPIRIT_DEBUG_NODE( face_element );
- BOOST_SPIRIT_DEBUG_NODE( material_element );
- BOOST_SPIRIT_DEBUG_NODE( param_element );
- BOOST_SPIRIT_DEBUG_NODE( group_element );
- BOOST_SPIRIT_DEBUG_NODE( smoothing_group_element );
- BOOST_SPIRIT_DEBUG_NODE( face );
- BOOST_SPIRIT_DEBUG_NODE( theo_element );
- BOOST_SPIRIT_DEBUG_NODE( usemtl_element );
- #endif
- }
-
- ////////////////////////////////////////////////////
- spirit::symbols<> keywords;
-
- spirit::chlit<> V, N, T, F, U, G, S, O, SLASH;
-
- spirit::rule<ScannerT> INTEGER_DECIMAL_CONSTANT, INTEGER_CONSTANT;
- spirit::rule<ScannerT> FLOAT_CONSTANT, FLOAT_CONSTANT_1, FLOAT_CONSTANT_2;
- spirit::rule<ScannerT> FLOAT_CONSTANT_3, CONSTANT, IDENTIFIER, MTLLIB, USEMTL;
- spirit::rule<ScannerT> ON, OFF;
-
- spirit::rule<ScannerT> unit, elements, vertex_element, normal_element;
- spirit::rule<ScannerT> texcoord_element, face_element, material_element;
- spirit::rule<ScannerT> param_element, group_element, face, smoothing_group_element;
- spirit::rule<ScannerT> theo_element, usemtl_element;
-
- const spirit::rule<ScannerT>& start( ) const
- { return unit; }
- };
-
- void set_base_url( const fs::path& base_url )
- { base_url_ = base_url; }
-
- grammar_state& eval;
- fs::path base_url_;
- };
-
- //
- template<typename C, typename V>
- void copy_( const C& c, V& v )
- {
-#if _MSC_VER >= 1400
- std::copy( c.begin( ), c.end( ), stdext::checked_array_iterator<typename V::iterator>( v.begin( ), v.size( ) ) );
-#else
- std::copy( c.begin( ), c.end( ), v.begin( ) );
-#endif
- }
-
- void unify_indices( OBJ_grammar& g )
- {
- std::vector<float> vn, vt;
- vn.resize( g.eval.v.size( ) );
- vt.resize( g.eval.v.size( ) );
-
- if( !g.eval.vn.empty( ) )
- {
- typedef std::map<opl::string, group_state>::const_iterator const_iterator;
- for( const_iterator I = g.eval.group.begin( ); I != g.eval.group.end( ); ++I )
- {
- for( int j = 0; j < I->second.vni.size( ); ++j )
- {
- int i0 = I->second.vi[ j ];
- int i1 = I->second.vni[ j ];
- if( i0 == -1 )
- continue;
-
- i0 *= 3;
- i1 *= 3;
-
- vn[ i0 + 0 ] = g.eval.vn[ i1 + 0 ];
- vn[ i0 + 1 ] = g.eval.vn[ i1 + 1 ];
- vn[ i0 + 2 ] = g.eval.vn[ i1 + 2 ];
- }
- }
- g.eval.vn = vn;
- }
-
- if( !g.eval.vt.empty( ) )
- {
- typedef std::map<opl::string, group_state>::const_iterator const_iterator;
- for( const_iterator I = g.eval.group.begin( ); I != g.eval.group.end( ); ++I )
- {
- for( int j = 0; j < I->second.vti.size( ); ++j )
- {
- int i0 = I->second.vi[ j ];
- int i1 = I->second.vti[ j ];
- if( i0 == -1 )
- continue;
-
- i0 *= 3;
- i1 *= 3;
-
- vt[ i0 + 0 ] = g.eval.vt[ i1 + 0 ];
- vt[ i0 + 1 ] = g.eval.vt[ i1 + 1 ];
- vt[ i0 + 2 ] = g.eval.vt[ i1 + 2 ];
- }
- }
- g.eval.vt = vt;
- }
- }
-
- void build_topology( const group_state& state, const sg::mesh_ptr& geometry )
- {
- opl::m_int32* index = geometry->pointer<opl::m_int32>( L"index" );
- opl::m_int32* count = geometry->pointer<opl::m_int32>( L"count" );
-
- index->reserve( state.vi.size( ) );
- count->reserve( state.vi.size( ) / 3 );
-
- for( int i = 0; i < state.vi.size( ); ++i )
- {
- int prim_count = 0;
- for( int j = i; j < state.vi.size( ); ++j, ++i )
- {
- if( state.vi[ j ] == -1 )
- {
- count->push_back( prim_count );
- break;
- }
-
- index->push_back( state.vi[ j ] );
- ++prim_count;
- }
- }
- }
-
- //
- void add_attribute( const sg::mesh_ptr& ifs, const sg::attribute_array_ptr& attr, const opl::wstring& name )
- {
- sg::v_attribute_array_ptr* attr_ = ifs->pointer<sg::v_attribute_array_ptr>( name );
- attr_->get( ) = attr;
- }
-
- sg::mesh_ptr create_geometry_node(
- const OBJ_grammar& g,
- const sg::attribute_array_ptr& coordinate,
- const sg::attribute_array_ptr& normal,
- const sg::attribute_array_ptr& texcoord )
- {
- sg::mesh_ptr ifs( new sg::mesh( ) );
- ifs->prim_type( ) = sg::mesh::POLYGONS;
-
- if( !g.eval.v.empty( ) )
- add_attribute( ifs, coordinate, L"coord" );
-
- if( !g.eval.vn.empty( ) )
- add_attribute( ifs, normal, L"normal" );
-
- if( !g.eval.vt.empty( ) )
- {
- sg::mv_uv_set_ptr* uv_ = ifs->pointer<sg::mv_uv_set_ptr>( L"uv" );
-
- sg::uv_set_ptr uv_set( new sg::uv_set( ) );
- uv_->push_back( sg::v_uv_set_ptr( uv_set ) );
-
- sg::v_attribute_array_ptr* uv = uv_set->pointer<sg::v_attribute_array_ptr>( L"uv" );
- uv->get( ) = texcoord;
- }
-
- return ifs;
- }
-
- // XXX TODO: create could try to share common materials between groups...
- sg::appearance_ptr create_appearance_node( const OBJ_grammar& g, const group_state& grp_state )
- {
- typedef grammar_state::materials::const_iterator const_iterator;
-
- sg::appearance_ptr appearance( new sg::appearance( ) );
-
- sg::v_material_ptr* material = appearance->pointer<sg::v_material_ptr>( L"material" );
-
- sg::material_ptr mtl( new sg::material( ) );
- material->get( ) = mtl;
-
- const_iterator I = g.eval.material.find( grp_state.mtl );
- if( I == g.eval.material.end( ) )
- return appearance;
-
- opl::v_color* diffuse = mtl->pointer<opl::v_color>( L"diffuseColor" );
-
- ( *diffuse ).get( )[ 0 ] = I->second.kd[ 0 ];
- ( *diffuse ).get( )[ 1 ] = I->second.kd[ 1 ];
- ( *diffuse ).get( )[ 2 ] = I->second.kd[ 2 ];
-
- if( !I->second.map_kd.empty( ) )
- {
- sg::m_texture_ptr* texture = appearance->pointer<sg::m_texture_ptr>( L"texture" );
-
- sg::texture_ptr tex( new sg::texture( ) );
- texture->push_back( tex );
-
- opl::m_url* url = tex->pointer<opl::m_url>( L"url" );
- url->push_back( fs::path( I->second.map_kd.c_str( ), fs::native ) );
- }
-
- return appearance;
- }
-
- void center_object( std::vector<float>& v )
- {
- float min[ 3 ];
- float max[ 3 ];
-
- min[ 0 ] = max[ 0 ] = v[ 0 ];
- min[ 1 ] = max[ 1 ] = v[ 1 ];
- min[ 2 ] = max[ 2 ] = v[ 2 ];
-
- for( size_t i = 3; i < v.size( ); i += 3 )
- {
- if( min[ 0 ] >= v[ i + 0 ] )
- min[ 0 ] = v[ i + 0 ];
- else if( max[ 0 ] < v[ i + 0 ] )
- max[ 0 ] = v[ i + 0 ];
-
- if( min[ 1 ] >= v[ i + 1 ] )
- min[ 1 ] = v[ i + 1 ];
- else if( max[ 1 ] < v[ i + 1 ] )
- max[ 1 ] = v[ i + 1 ];
-
- if( min[ 2 ] >= v[ i + 2 ] )
- min[ 2 ] = v[ i + 2 ];
- else if( max[ 2 ] < v[ i + 2 ] )
- max[ 2 ] = v[ i + 2 ];
- }
-
- float centre[ 3 ];
- centre[ 0 ] = ( max[ 0 ] + min[ 0 ] ) * 0.5f;
- centre[ 1 ] = ( max[ 1 ] + min[ 1 ] ) * 0.5f;
- centre[ 2 ] = ( max[ 2 ] + min[ 2 ] ) * 0.5f;
-
- for( size_t i = 0; i < v.size( ); i += 3 )
- {
- v[ i + 0 ] -= centre[ 0 ];
- v[ i + 1 ] -= centre[ 1 ];
- v[ i + 2 ] -= centre[ 2 ];
- }
- }
-
- void create_geometry( const std::vector<float>& v, sg::attribute_array_ptr& arr, int comp )
- {
- opl::m_float* val = arr->pointer<opl::m_float>( L"value" );
- opl::v_int32* nc = arr->pointer<opl::v_int32>( L"components" );
-
- val->resize( v.size( ) );
- nc->get( ) = comp;
-
- copy_( v, *val );
- }
-
- sg::spatial_ptr build_obj_graph( OBJ_grammar& g )
- {
- sg::spatial_ptr grp( new sg::group( ) );
- sg::m_spatial_ptr* children = grp->pointer<sg::m_spatial_ptr>( L"children" );
-
- sg::attribute_array_ptr varr( new sg::attribute_array( ) );
- sg::attribute_array_ptr narr( new sg::attribute_array( ) );
- sg::attribute_array_ptr tarr( new sg::attribute_array( ) );
-
- unify_indices( g );
-
- center_object( g.eval.v );
- create_geometry( g.eval.v, varr, 3 );
- create_geometry( g.eval.vn, narr, 3 );
- create_geometry( g.eval.vt, tarr, 2 );
-
- typedef std::map<opl::string, group_state>::const_iterator const_iterator;
- for( const_iterator I = g.eval.group.begin( ); I != g.eval.group.end( ); ++I )
- {
- sg::spatial_ptr shape( new sg::shape( ) );
-
- sg::v_mesh_ptr* geometry = shape->pointer<sg::v_mesh_ptr>( L"geometry" );
- sg::v_appearance_ptr* appearance = shape->pointer<sg::v_appearance_ptr>( L"appearance" );
-
- appearance->get( ) = create_appearance_node( g, I->second );
-
- sg::mesh_ptr ifs = create_geometry_node( g, varr, narr, tarr );
- geometry->get( ) = ifs;
-
- build_topology( I->second, ifs );
-
- children->push_back( shape );
- }
-
- return grp;
- }
-
- //
- bool parse_and_build_obj_graph( const fs::path& base_url, const std::string& obj, sg::spatial_ptr& root )
- {
- grammar_state eval;
-
- OBJ_grammar obj_g( eval );
- skip_grammar skip_g;
-
-#ifndef NDEBUG
- BOOST_SPIRIT_DEBUG_NODE( obj_g );
- BOOST_SPIRIT_DEBUG_NODE( skip_g );
-#endif
-
- obj_g.set_base_url( base_url );
- spirit::parse_info<> result = spirit::parse( obj.c_str( ), obj_g, skip_g );
-
- return result.full && ( root = build_obj_graph( obj_g ) );
- }
-
- //
- sg::scene_ptr load_obj( const fs::path& path )
- {
- sg::scene_ptr sc( new sg::scene( ) );
-
- fs::ifstream file( path, std::ios::in );
- if( !file.is_open( ) )
- return sc;
-
- file.unsetf( std::ios::skipws );
-
- std::string obj( ( std::istreambuf_iterator<char>( file ) ), std::istreambuf_iterator<char>( ) );
-
- sg::spatial_ptr root;
- if( !parse_and_build_obj_graph( path.branch_path( ), obj, root ) )
- return sc;
-
- sc->set_root( root );
-
- return sc;
- }
-}
-
-sg::scene_ptr OBJ_plugin::load( const fs::path& path, const opl::string& /*options*/ )
-{ return load_obj( path ); }
-
-bool OBJ_plugin::store( const fs::path& /*path*/, const sg::scene_ptr& /*root*/ )
-{ return false; }
-
-} } } }
Copied: trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.cpp (from rev 375, trunk/lib/openlibraries/src/openobjectlib/plugins/obj/obj_plugin.cpp)
===================================================================
--- trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.cpp (rev 0)
+++ trunk/lib/openlibraries/src/openobjectlib/plugins/wavefront/obj_plugin.cpp 2007-11-06 21:59:54 UTC (rev 376)
@@ -0,0 +1,1172 @@
+
+// OBJ - An OBJ plugin to sg.
+
+// Copyright (C) 2005-2006 VM Inc.
+// Released under the LGPL.
+// For more information, see http://www.openlibraries.org.
+
+#include <algorithm>
+#include <map>
+#include <string>
+#include <vector>
+
+#include <boost/filesystem/fstream.hpp>
+#include <boost/tokenizer.hpp>
+
+#include <openpluginlib/pl/geometry.hpp>
+#include <openpluginlib/pl/property.hpp>
+#include <openpluginlib/pl/utf8_utils.hpp>
+
+#include <openobjectlib/sg/appearance.hpp>
+#include <openobjectlib/sg/spatial.hpp>
+#include <openobjectlib/sg/meshes.hpp>
+
+#include <openobjectlib/plugins/obj/obj_plugin.hpp>
+#include <openobjectlib/plugins/obj/spirit.hpp>
+
+namespace fs = boost::filesystem;
+namespace spirit = boost::spirit;
+namespace opl = olib::openpluginlib;
+namespace sg = olib::openobjectlib::sg;
+
+namespace olib { namespace openobjectlib { namespace plugins { namespace OBJ {
+
+namespace
+{
+ opl::string get_base_url( const opl::string& url )
+ {
+#ifdef WIN32
+ size_t pos = url.find_last_of( '\\' );
+ if( pos != opl::string::npos )
+ return opl::string( url.begin( ), url.begin( ) + pos + 1 );
+#else
+ return opl::string( url.begin( ), url.begin( ) + url.find_last_of( '/' ) + 1 );
+#endif
+ return opl::string( );
+ }
+
+ ///////////////////////////////////////////////////////////////
+ // grammar state
+ struct material_state
+ {
+ explicit material_state( const opl::string& name_ )
+ : ka( 0.2f, 0.2f, 0.2f )
+ , kd( 0.8f, 0.8f, 0.8f )
+ , ks( 0.2f, 0.2f, 0.2f )
+ , tf( 1.0f, 1.0f, 1.0f )
+ , ns( 65.0f )
+ , name( name_ )
+ { }
+
+ opl::vec3f ka, kd, ks, tf;
+ float ns;
+ float sharpness;
+ opl::string name;
+ opl::string map_kd;
+ };
+
+ struct group_state
+ {
+ typedef std::vector<int> vec_ints;
+
+ explicit group_state( const opl::string& mtl_ )
+ : mtl( mtl_ )
+ { }
+
+ vec_ints vi, vni, vti;
+ opl::string mtl;
+ };
+
+ struct grammar_state
+ {
+ typedef std::vector<float> vec_floats;
+ typedef std::vector<int> vec_ints;
+ typedef std::map<opl::string, group_state> groups;
+ typedef std::map<opl::string, material_state> materials;
+
+ explicit grammar_state( )
+ : grp( 0 )
+ , mtl( 0 )
+ { set_group( "default" ); }
+
+
+ // XXX merge these two members by means of templates.
+ // XXX this totally sucks. needs a revamp ASAP.
+ void set_group( const opl::string& name )
+ {
+ typedef groups::iterator iterator;
+
+ iterator I = group.find( name );
+ if( I != group.end( ) )
+ {
+ grp = &( I->second );
+ }
+ else
+ {
+ opl::string mtl_name( "default" );
+
+ if( mtl ) mtl_name = mtl->name;
+
+ grp = &( group.insert( groups::value_type( name, group_state( mtl_name ) ) ).first->second );
+ }
+ }
+
+ void set_material( const opl::string& name )
+ {
+ typedef materials::iterator iterator;
+
+ iterator I = material.find( name );
+ if( I != material.end( ) )
+ {
+ mtl = &( I->second );
+ }
+ else
+ {
+ mtl = &( material.insert( materials::value_type( name, material_state( name ) ) ).first->second );
+ }
+
+ grp->mtl = name;
+ }
+
+ groups group;
+ materials material;
+ vec_floats v, vn, vt;
+
+ group_state* grp;
+ material_state* mtl;
+ };
+
+ ///////////////////////////////////
+ /// functors
+ class geometry_action
+ {
+ public:
+ explicit geometry_action( grammar_state::vec_floats& v )
+ : v_( v )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ { v_.push_back( static_cast<float>( atof( opl::string( first, last ).c_str( ) ) ) ); }
+
+ private:
+ grammar_state::vec_floats& v_;
+ };
+
+ //
+ class topology_action
+ {
+ public:
+ explicit topology_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ {
+ const char* iter = first;
+
+ for( ; iter != last && *iter != '/'; ++iter )
+ ;
+
+ gs_.grp->vi.push_back( atoi( opl::string( first, iter ).c_str( ) ) - 1 );
+
+ // texture
+ if( iter != last && *++iter != '/' )
+ {
+ for( ; iter != last && *iter != '/'; ++iter )
+ ;
+
+ gs_.grp->vti.push_back( atoi( opl::string( first, iter ).c_str( ) ) - 1 );
+ }
+
+ // normal
+ if( iter != last )
+ {
+ first = ++iter;
+
+ gs_.grp->vni.push_back( atoi( opl::string( first, last ).c_str( ) ) - 1 );
+ }
+ }
+
+ private:
+ grammar_state& gs_;
+ };
+
+ //
+ class topology_wrap_up_action
+ {
+ public:
+ explicit topology_wrap_up_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* /*first*/, const char* /*last*/ ) const
+ {
+ gs_.grp->vi.push_back( -1 );
+ gs_.grp->vni.push_back( -1 );
+ gs_.grp->vti.push_back( -1 );
+ }
+
+ private:
+ grammar_state& gs_;
+ };
+
+ //
+ struct group_action
+ {
+ explicit group_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ {
+ opl::string s;
+
+ if( ++first == last )
+ s.assign( "default" );
+ else
+ s.assign( ++first, last ); // XXX needs a proper trim left and trim right.
+
+ gs_.set_group( s );
+ }
+
+ grammar_state& gs_;
+ };
+
+ //
+ struct use_material_action
+ {
+ explicit use_material_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ { gs_.set_material( opl::string( first, last ) ); }
+
+ grammar_state& gs_;
+ };
+
+ //
+ struct material_action
+ {
+ explicit material_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ { gs_.set_material( opl::string( first, last ) ); }
+
+ grammar_state& gs_;
+ };
+
+ //
+ opl::vec3f extract_vec3f_info( const opl::string& str )
+ {
+ typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
+
+ opl::vec3f vec;
+
+ std::string st( str.c_str( ) );
+
+ boost::char_separator<char> sep( " \t" );
+ tokenizer tok( st.begin( ), st.end( ), sep );
+
+ tokenizer::const_iterator I = tok.begin( );
+ if( I != tok.end( ) )
+ vec[ 0 ] = static_cast<float>( strtod( I->c_str( ), 0 ) );
+ ++I;
+
+ if( I != tok.end( ) )
+ vec[ 1 ] = static_cast<float>( strtod( I->c_str( ), 0 ) );
+ ++I;
+
+ if( I != tok.end( ) )
+ vec[ 2 ] = static_cast<float>( strtod( I->c_str( ), 0 ) );
+ ++I;
+
+ return vec;
+ }
+
+ struct ka_action
+ {
+ explicit ka_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ {
+ opl::string tmp( first, last );
+ opl::vec3f ka = extract_vec3f_info( tmp );
+
+ gs_.mtl->ka = ka;
+ }
+
+ grammar_state& gs_;
+ };
+
+ struct kd_action
+ {
+ explicit kd_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ {
+ opl::string tmp( first, last );
+ opl::vec3f kd = extract_vec3f_info( tmp );
+
+ gs_.mtl->kd = kd;
+ }
+
+ grammar_state& gs_;
+ };
+
+ struct ks_action
+ {
+ explicit ks_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ {
+ opl::string tmp( first, last );
+ opl::vec3f ks = extract_vec3f_info( tmp );
+
+ gs_.mtl->ks = ks;
+ }
+
+ grammar_state& gs_;
+ };
+
+ struct map_kd_action
+ {
+ explicit map_kd_action( grammar_state& gs )
+ : gs_( gs )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ {
+ opl::string tmp( first, last );
+
+ gs_.mtl->map_kd = tmp;
+ }
+
+ grammar_state& gs_;
+ };
+
+ ///////////////////////////////////////////////////////////////
+ // skip grammar (whitespace and comments)
+ struct skip_grammar : public spirit::grammar<skip_grammar>
+ {
+ template<class ScannerT>
+ struct definition
+ {
+ definition( const skip_grammar& /*self*/)
+ {
+ skip
+ = spirit::space_p
+ | spirit::comment_p( "#" )
+ ;
+
+# ifndef NDEBUG
+ BOOST_SPIRIT_DEBUG_NODE( skip );
+# endif
+ }
+
+ spirit::rule<ScannerT> skip;
+
+ const spirit::rule<ScannerT>& start( ) const
+ { return skip; }
+ };
+ };
+
+ //////////////////////////////////////////////////////////////
+ // obj material grammar.
+ struct mtl_grammar : public spirit::grammar<mtl_grammar>
+ {
+ mtl_grammar( grammar_state& eval_ )
+ : eval( eval_ )
+ { }
+
+ template<class ScannerT>
+ struct definition
+ {
+ definition( const mtl_grammar& self )
+ {
+ using namespace boost::spirit;
+
+ keywords
+ = "newmtl", "Ka", "Kd", "Ks", "illum", "Ns", "d", "map_Kd", "Tf"
+ ;
+
+ NEWMTL = strlit<>( "newmtl" );
+ KA = strlit<>( "Ka" );
+ KD = strlit<>( "Kd" );
+ KS = strlit<>( "Ks" );
+ ILLUM = strlit<>( "illum" );
+ NS = strlit<>( "Ns" );
+ NI = strlit<>( "Ni" );
+ D = strlit<>( "d" );
+ MAP_KD = strlit<>( "map_Kd" );
+ TF = strlit<>( "Tf" );
+ REFL = strlit<>( "refl" );
+ REFLTYPE = strlit<>( "-type" );
+ REFLMM = strlit<>( "-mm" );
+ REFLCLAMP = strlit<>( "-clamp" );
+ SHARPNESS = strlit<>( "sharpness" );
+ ON = strlit<>( "on" );
+ OFF = strlit<>( "off" );
+
+ INTEGER_DECIMAL_CONSTANT
+ = lexeme_d[ +digit_p ]
+ ;
+
+ INTEGER_CONSTANT
+ = INTEGER_DECIMAL_CONSTANT
+ ;
+
+ FLOAT_CONSTANT_1 // 12345[eE][+-]123[lLfF]?
+ = lexeme_d
+ [
+ +digit_p
+ >> ( chlit<>( 'e' ) | chlit<>( 'E' ) )
+ >> !sign_p
+ >> +digit_p
+ >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
+ ]
+ ;
+
+ FLOAT_CONSTANT_2 // .123([[eE][+-]123)?[lLfF]?
+ = lexeme_d
+ [
+
+ *digit_p
+ >> chlit<>('.')
+ >> +digit_p
+ >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
+ >> !sign_p
+ >> +digit_p
+ )
+ >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
+ ]
+ ;
+
+ FLOAT_CONSTANT_3 // 12345.([[eE][+-]123)?[lLfF]?
+ = lexeme_d
+ [
+ +digit_p
+ >> chlit<>( '.' )
+ >> *digit_p
+ >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
+ >> !sign_p
+ >> +digit_p
+ )
+ >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
+ ]
+ ;
+
+ FLOAT_CONSTANT
+ = FLOAT_CONSTANT_1
+ | FLOAT_CONSTANT_2
+ | FLOAT_CONSTANT_3
+ ;
+
+ CONSTANT
+ = !sign_p >> longest_d[ FLOAT_CONSTANT | INTEGER_CONSTANT ]
+ ;
+
+
+ IDENTIFIER
+ = lexeme_d
+ [
+ ( ( alpha_p | '_' | '$' ) >> *( alnum_p | '_' | '$' | '-' | '.' ) ) - ( keywords >> anychar_p - ( alnum_p | '_' | '$' ) )
+ ]
+ ;
+
+ newmtl
+ = NEWMTL >> IDENTIFIER[ material_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
+ >> *( ka | kd | ks | ns | ni | illum | d | sharpness | tf | refl | map_Kd )
+ ;
+
+ ka
+ = KA >> ( CONSTANT >> CONSTANT >> CONSTANT )[ ka_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
+ ;
+
+ kd = KD >> ( CONSTANT >> CONSTANT >> CONSTANT )[ kd_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
+ ;
+
+ ks = KS >> ( CONSTANT >> CONSTANT >> CONSTANT )[ ks_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
+ ;
+
+ ns = NS >> CONSTANT
+ ;
+
+ ni = NI >> CONSTANT
+ ;
+
+ sharpness
+ = SHARPNESS >> CONSTANT
+ ;
+
+ illum
+ = ILLUM >> CONSTANT
+ ;
+
+ d
+ = D >> CONSTANT
+ ;
+
+ map_Kd
+ = MAP_KD >> IDENTIFIER[ map_kd_action( ( const_cast<mtl_grammar&>( self ) ).eval ) ]
+ ;
+
+ tf
+ = TF >> ( CONSTANT >> CONSTANT >> CONSTANT )
+ ;
+
+ reflmm
+ = REFLMM >> CONSTANT >> CONSTANT
+ ;
+
+ reflclamp
+ = REFLCLAMP >> ( ON | OFF )
+ ;
+
+ refl
+ = REFL >> REFLTYPE >> IDENTIFIER >> !( reflmm | reflclamp ) >> IDENTIFIER
+ ;
+
+ unit
+ = *newmtl
+ ;
+
+# ifndef NDEBUG
+ BOOST_SPIRIT_DEBUG_NODE( INTEGER_DECIMAL_CONSTANT );
+ BOOST_SPIRIT_DEBUG_NODE( INTEGER_CONSTANT );
+ BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT );
+ BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_1 );
+ BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_2 );
+ BOOST_SPIRIT_DEBUG_NODE( FLOAT_CONSTANT_3 );
+ BOOST_SPIRIT_DEBUG_NODE( CONSTANT );
+ BOOST_SPIRIT_DEBUG_NODE( ILLUM );
+ BOOST_SPIRIT_DEBUG_NODE( NS );
+ BOOST_SPIRIT_DEBUG_NODE( NI );
+ BOOST_SPIRIT_DEBUG_NODE( KS );
+ BOOST_SPIRIT_DEBUG_NODE( KD );
+ BOOST_SPIRIT_DEBUG_NODE( KA );
+ BOOST_SPIRIT_DEBUG_NODE( D );
+ BOOST_SPIRIT_DEBUG_NODE( NEWMTL );
+ BOOST_SPIRIT_DEBUG_NODE( IDENTIFIER );
+ BOOST_SPIRIT_DEBUG_NODE( MAP_KD );
+ BOOST_SPIRIT_DEBUG_NODE( TF );
+ BOOST_SPIRIT_DEBUG_NODE( SHARPNESS );
+ BOOST_SPIRIT_DEBUG_NODE( REFL );
+ BOOST_SPIRIT_DEBUG_NODE( REFLTYPE );
+ BOOST_SPIRIT_DEBUG_NODE( REFLMM );
+ BOOST_SPIRIT_DEBUG_NODE( REFLCLAMP );
+ BOOST_SPIRIT_DEBUG_NODE( ON );
+ BOOST_SPIRIT_DEBUG_NODE( OFF );
+ BOOST_SPIRIT_DEBUG_NODE( unit );
+ BOOST_SPIRIT_DEBUG_NODE( newmtl );
+ BOOST_SPIRIT_DEBUG_NODE( ka );
+ BOOST_SPIRIT_DEBUG_NODE( kd );
+ BOOST_SPIRIT_DEBUG_NODE( ks );
+ BOOST_SPIRIT_DEBUG_NODE( ns );
+ BOOST_SPIRIT_DEBUG_NODE( ni );
+ BOOST_SPIRIT_DEBUG_NODE( illum );
+ BOOST_SPIRIT_DEBUG_NODE( d );
+ BOOST_SPIRIT_DEBUG_NODE( map_Kd );
+ BOOST_SPIRIT_DEBUG_NODE( tf );
+ BOOST_SPIRIT_DEBUG_NODE( sharpness );
+ BOOST_SPIRIT_DEBUG_NODE( refl );
+ BOOST_SPIRIT_DEBUG_NODE( reflmm );
+ BOOST_SPIRIT_DEBUG_NODE( reflclamp );
+# endif
+ }
+
+ spirit::symbols<> keywords;
+
+ spirit::rule<ScannerT> unit, newmtl, ka, kd, ks, ns, ni, illum, d, map_Kd, tf, sharpness, refl, reflmm, reflclamp;
+ spirit::rule<ScannerT> IDENTIFIER, NEWMTL, KA, KD, KS, NS, NI, ILLUM, SHARPNESS;
+ spirit::rule<ScannerT> INTEGER_DECIMAL_CONSTANT, INTEGER_CONSTANT;
+ spirit::rule<ScannerT> FLOAT_CONSTANT, FLOAT_CONSTANT_1, FLOAT_CONSTANT_2;
+ spirit::rule<ScannerT> FLOAT_CONSTANT_3, CONSTANT, D, MAP_KD, TF;
+ spirit::rule<ScannerT> REFL, REFLTYPE, REFLMM, REFLCLAMP, ON, OFF;
+
+ const spirit::rule<ScannerT>& start( ) const
+ { return unit; }
+ };
+
+ grammar_state& eval;
+ };
+
+ //////////////////////////////////////////////////////////////
+ // obj grammar. some may think is a bit overkill to use a
+ // spirit grammar for the obj format. however, using spirit
+ // here gives us good insight on how spirit may be used for
+ // more interesting grammars like the sg fx one.
+ struct OBJ_grammar : public spirit::grammar<OBJ_grammar>
+ {
+ OBJ_grammar( grammar_state& eval_ )
+ : eval( eval_ )
+ { }
+
+ template<class ScannerT>
+ struct definition
+ {
+ struct load_material_action
+ {
+ explicit load_material_action( const fs::path& base_url, grammar_state& gs )
+ : gs_( gs )
+ , base_url_( base_url )
+ { }
+
+ void operator( )( const char* first, const char* last ) const
+ {
+ fs::path orig_path( std::string( first, last ), fs::native );
+
+ fs::ifstream file;
+ file.open( orig_path, std::ios::in );
+ if( !file.is_open( ) )
+ {
+ file.open( base_url_ / orig_path, std::ios::in );
+ if( !file.is_open( ) )
+ return;
+ }
+
+ file.unsetf( std::ios::skipws );
+
+ std::string mtl( ( std::istreambuf_iterator<char>( file ) ), std::istreambuf_iterator<char>( ) );
+
+ mtl_grammar mtl_g( gs_ );
+ skip_grammar skip_g;
+
+# ifndef NDEBUG
+ BOOST_SPIRIT_DEBUG_NODE( mtl_g );
+ BOOST_SPIRIT_DEBUG_NODE( skip_g );
+# endif
+
+ spirit::parse_info<> result = spirit::parse( mtl.c_str( ), mtl_g, skip_g );
+ }
+
+ grammar_state& gs_;
+ fs::path base_url_;
+ };
+
+ static const int RESERVE_SIZE = 1000;
+
+ //////////////////////////////////////////////////
+ // grammar definition
+ definition( const OBJ_grammar& self )
+ : V( 'v' )
+ , N( 'n' )
+ , T( 't' )
+ , F( 'f' )
+ , U( 'u' )
+ , G( 'g' )
+ , S( 's' )
+ , O( 'o' )
+ , SLASH( '/' )
+ {
+ using namespace boost::spirit;
+
+ keywords
+ = "v", "vn", "vt", "f", "g", "s", "u", "mtllib", "usemtl", "on", "off"
+ ;
+
+ MTLLIB = strlit<>( "mtllib" );
+ USEMTL = strlit<>( "usemtl" );
+ ON = strlit<>( "on" );
+ OFF = strlit<>( "off" );
+
+ IDENTIFIER
+ = lexeme_d
+ [
+ ( ( alpha_p | '_' | '$' ) >> *( alnum_p | '_' | '$' | '-' | '.' ) ) - ( keywords >> anychar_p - ( alnum_p | '_' | '$' ) )
+ ]
+ ;
+
+ INTEGER_DECIMAL_CONSTANT
+ = lexeme_d[ +digit_p ]
+ ;
+
+ INTEGER_CONSTANT
+ = INTEGER_DECIMAL_CONSTANT
+ ;
+
+ FLOAT_CONSTANT_1 // 12345[eE][+-]123[lLfF]?
+ = lexeme_d
+ [
+ +digit_p
+ >> ( chlit<>( 'e' ) | chlit<>( 'E' ) )
+ >> !sign_p
+ >> +digit_p
+ >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
+ ]
+ ;
+
+ FLOAT_CONSTANT_2 // .123([[eE][+-]123)?[lLfF]?
+ = lexeme_d
+ [
+
+ *digit_p
+ >> chlit<>('.')
+ >> +digit_p
+ >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
+ >> !sign_p
+ >> +digit_p
+ )
+ >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
+ ]
+ ;
+
+ FLOAT_CONSTANT_3 // 12345.([[eE][+-]123)?[lLfF]?
+ = lexeme_d
+ [
+ +digit_p
+ >> chlit<>( '.' )
+ >> *digit_p
+ >> !( ( chlit<>( 'e' ) | chlit<>( 'E' ) )
+ >> !sign_p
+ >> +digit_p
+ )
+ >> !as_lower_d[ chlit<>( 'l' ) | chlit<>( 'f' ) ]
+ ]
+ ;
+
+ FLOAT_CONSTANT
+ = FLOAT_CONSTANT_1
+ | FLOAT_CONSTANT_2
+ | FLOAT_CONSTANT_3
+ ;
+
+ CONSTANT
+ = !sign_p >> longest_d[ FLOAT_CONSTANT | INTEGER_CONSTANT ]
+ ;
+
+ vertex_element
+ = V
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.v ) ]
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.v ) ]
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.v ) ]
+ ;
+
+ normal_element
+ = V >> N
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vn ) ]
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vn ) ]
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vn ) ]
+ ;
+
+ texcoord_element
+ = V >> T
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vt ) ]
+ >> CONSTANT[ geometry_action( ( const_cast<OBJ_grammar&>( self ) ).eval.vt ) ]
+ >> ( *CONSTANT )
+ ;
+
+ face // can be one of %d, %d//%d, %d/%d, %d/%d/%d
+ = longest_d
+ [
+ INTEGER_CONSTANT
+ | INTEGER_CONSTANT >> ...
[truncated message content] |
