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https://github.com/dhewm/dhewm3.git
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336 lines
14 KiB
C++
336 lines
14 KiB
C++
/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 Source Code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#ifndef __DECLMANAGER_H__
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#define __DECLMANAGER_H__
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/*
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===============================================================================
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Declaration Manager
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All "small text" data types, like materials, sound shaders, fx files,
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entity defs, etc. are managed uniformly, allowing reloading, purging,
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listing, printing, etc. All "large text" data types that never have more
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than one declaration in a given file, like maps, models, AAS files, etc.
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are not handled here.
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A decl will never, ever go away once it is created. The manager is
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garranteed to always return the same decl pointer for a decl type/name
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combination. The index of a decl in the per type list also stays the
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same throughout the lifetime of the engine. Although the pointer to
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a decl always stays the same, one should never maintain pointers to
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data inside decls. The data stored in a decl is not garranteed to stay
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the same for more than one engine frame.
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The decl indexes of explicitely defined decls are garrenteed to be
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consistent based on the parsed decl files. However, the indexes of
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implicit decls may be different based on the order in which levels
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are loaded.
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The decl namespaces are separate for each type. Comments for decls go
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above the text definition to keep them associated with the proper decl.
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During decl parsing, errors should never be issued, only warnings
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followed by a call to MakeDefault().
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===============================================================================
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*/
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typedef enum {
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DECL_TABLE = 0,
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DECL_MATERIAL,
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DECL_SKIN,
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DECL_SOUND,
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DECL_ENTITYDEF,
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DECL_MODELDEF,
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DECL_FX,
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DECL_PARTICLE,
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DECL_AF,
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DECL_PDA,
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DECL_VIDEO,
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DECL_AUDIO,
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DECL_EMAIL,
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DECL_MODELEXPORT,
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DECL_MAPDEF,
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// new decl types can be added here
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DECL_MAX_TYPES = 32
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} declType_t;
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typedef enum {
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DS_UNPARSED,
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DS_DEFAULTED, // set if a parse failed due to an error, or the lack of any source
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DS_PARSED
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} declState_t;
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const int DECL_LEXER_FLAGS = LEXFL_NOSTRINGCONCAT | // multiple strings seperated by whitespaces are not concatenated
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LEXFL_NOSTRINGESCAPECHARS | // no escape characters inside strings
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LEXFL_ALLOWPATHNAMES | // allow path seperators in names
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LEXFL_ALLOWMULTICHARLITERALS | // allow multi character literals
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LEXFL_ALLOWBACKSLASHSTRINGCONCAT | // allow multiple strings seperated by '\' to be concatenated
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LEXFL_NOFATALERRORS; // just set a flag instead of fatal erroring
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class idDeclBase {
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public:
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virtual ~idDeclBase() {};
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virtual const char * GetName( void ) const = 0;
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virtual declType_t GetType( void ) const = 0;
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virtual declState_t GetState( void ) const = 0;
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virtual bool IsImplicit( void ) const = 0;
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virtual bool IsValid( void ) const = 0;
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virtual void Invalidate( void ) = 0;
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virtual void Reload( void ) = 0;
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virtual void EnsureNotPurged( void ) = 0;
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virtual int Index( void ) const = 0;
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virtual int GetLineNum( void ) const = 0;
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virtual const char * GetFileName( void ) const = 0;
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virtual void GetText( char *text ) const = 0;
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virtual int GetTextLength( void ) const = 0;
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virtual void SetText( const char *text ) = 0;
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virtual bool ReplaceSourceFileText( void ) = 0;
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virtual bool SourceFileChanged( void ) const = 0;
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virtual void MakeDefault( void ) = 0;
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virtual bool EverReferenced( void ) const = 0;
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virtual bool SetDefaultText( void ) = 0;
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virtual const char * DefaultDefinition( void ) const = 0;
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virtual bool Parse( const char *text, const int textLength ) = 0;
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virtual void FreeData( void ) = 0;
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virtual size_t Size( void ) const = 0;
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virtual void List( void ) const = 0;
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virtual void Print( void ) const = 0;
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};
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class idDecl {
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public:
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// The constructor should initialize variables such that
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// an immediate call to FreeData() does no harm.
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idDecl( void ) { base = NULL; }
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virtual ~idDecl( void ) {};
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// Returns the name of the decl.
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const char * GetName( void ) const { return base->GetName(); }
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// Returns the decl type.
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declType_t GetType( void ) const { return base->GetType(); }
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// Returns the decl state which is usefull for finding out if a decl defaulted.
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declState_t GetState( void ) const { return base->GetState(); }
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// Returns true if the decl was defaulted or the text was created with a call to SetDefaultText.
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bool IsImplicit( void ) const { return base->IsImplicit(); }
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// The only way non-manager code can have an invalid decl is if the *ByIndex()
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// call was used with forceParse = false to walk the lists to look at names
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// without touching the media.
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bool IsValid( void ) const { return base->IsValid(); }
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// Sets state back to unparsed.
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// Used by decl editors to undo any changes to the decl.
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void Invalidate( void ) { base->Invalidate(); }
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// if a pointer might possible be stale from a previous level,
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// call this to have it re-parsed
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void EnsureNotPurged( void ) { base->EnsureNotPurged(); }
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// Returns the index in the per-type list.
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int Index( void ) const { return base->Index(); }
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// Returns the line number the decl starts.
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int GetLineNum( void ) const { return base->GetLineNum(); }
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// Returns the name of the file in which the decl is defined.
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const char * GetFileName( void ) const { return base->GetFileName(); }
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// Returns the decl text.
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void GetText( char *text ) const { base->GetText( text ); }
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// Returns the length of the decl text.
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int GetTextLength( void ) const { return base->GetTextLength(); }
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// Sets new decl text.
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void SetText( const char *text ) { base->SetText( text ); }
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// Saves out new text for the decl.
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// Used by decl editors to replace the decl text in the source file.
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bool ReplaceSourceFileText( void ) { return base->ReplaceSourceFileText(); }
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// Returns true if the source file changed since it was loaded and parsed.
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bool SourceFileChanged( void ) const { return base->SourceFileChanged(); }
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// Frees data and makes the decl a default.
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void MakeDefault( void ) { base->MakeDefault(); }
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// Returns true if the decl was ever referenced.
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bool EverReferenced( void ) const { return base->EverReferenced(); }
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public:
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// Sets textSource to a default text if necessary.
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// This may be overridden to provide a default definition based on the
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// decl name. For instance materials may default to an implicit definition
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// using a texture with the same name as the decl.
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virtual bool SetDefaultText( void ) { return base->SetDefaultText(); }
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// Each declaration type must have a default string that it is guaranteed
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// to parse acceptably. When a decl is not explicitly found, is purged, or
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// has an error while parsing, MakeDefault() will do a FreeData(), then a
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// Parse() with DefaultDefinition(). The defaultDefintion should start with
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// an open brace and end with a close brace.
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virtual const char * DefaultDefinition( void ) const { return base->DefaultDefinition(); }
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// The manager will have already parsed past the type, name and opening brace.
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// All necessary media will be touched before return.
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// The manager will have called FreeData() before issuing a Parse().
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// The subclass can call MakeDefault() internally at any point if
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// there are parse errors.
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virtual bool Parse( const char *text, const int textLength ) { return base->Parse( text, textLength ); }
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// Frees any pointers held by the subclass. This may be called before
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// any Parse(), so the constructor must have set sane values. The decl will be
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// invalid after issuing this call, but it will always be immediately followed
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// by a Parse()
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virtual void FreeData( void ) { base->FreeData(); }
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// Returns the size of the decl in memory.
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virtual size_t Size( void ) const { return base->Size(); }
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// If this isn't overridden, it will just print the decl name.
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// The manager will have printed 7 characters on the line already,
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// containing the reference state and index number.
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virtual void List( void ) const { base->List(); }
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// The print function will already have dumped the text source
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// and common data, subclasses can override this to dump more
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// explicit data.
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virtual void Print( void ) const { base->Print(); }
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public:
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idDeclBase * base;
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};
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template< class type >
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ID_INLINE idDecl *idDeclAllocator( void ) {
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return new type;
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}
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class idMaterial;
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class idDeclSkin;
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class idSoundShader;
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class idDeclManager {
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public:
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virtual ~idDeclManager( void ) {}
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virtual void Init( void ) = 0;
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virtual void Shutdown( void ) = 0;
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virtual void Reload( bool force ) = 0;
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virtual void BeginLevelLoad() = 0;
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virtual void EndLevelLoad() = 0;
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// Registers a new decl type.
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virtual void RegisterDeclType( const char *typeName, declType_t type, idDecl *(*allocator)( void ) ) = 0;
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// Registers a new folder with decl files.
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virtual void RegisterDeclFolder( const char *folder, const char *extension, declType_t defaultType ) = 0;
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// Returns a checksum for all loaded decl text.
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virtual int GetChecksum( void ) const = 0;
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// Returns the number of decl types.
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virtual int GetNumDeclTypes( void ) const = 0;
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// Returns the type name for a decl type.
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virtual const char * GetDeclNameFromType( declType_t type ) const = 0;
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// Returns the decl type for a type name.
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virtual declType_t GetDeclTypeFromName( const char *typeName ) const = 0;
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// If makeDefault is true, a default decl of appropriate type will be created
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// if an explicit one isn't found. If makeDefault is false, NULL will be returned
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// if the decl wasn't explcitly defined.
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virtual const idDecl * FindType( declType_t type, const char *name, bool makeDefault = true ) = 0;
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virtual const idDecl* FindDeclWithoutParsing( declType_t type, const char *name, bool makeDefault = true ) = 0;
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virtual void ReloadFile( const char* filename, bool force ) = 0;
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// Returns the number of decls of the given type.
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virtual int GetNumDecls( declType_t type ) = 0;
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// The complete lists of decls can be walked to populate editor browsers.
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// If forceParse is set false, you can get the decl to check name / filename / etc.
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// without causing it to parse the source and load media.
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virtual const idDecl * DeclByIndex( declType_t type, int index, bool forceParse = true ) = 0;
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// List and print decls.
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virtual void ListType( const idCmdArgs &args, declType_t type ) = 0;
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virtual void PrintType( const idCmdArgs &args, declType_t type ) = 0;
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// Creates a new default decl of the given type with the given name in
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// the given file used by editors to create a new decls.
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virtual idDecl * CreateNewDecl( declType_t type, const char *name, const char *fileName ) = 0;
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// BSM - Added for the material editors rename capabilities
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virtual bool RenameDecl( declType_t type, const char* oldName, const char* newName ) = 0;
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// When media files are loaded, a reference line can be printed at a
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// proper indentation if decl_show is set
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virtual void MediaPrint( const char *fmt, ... ) id_attribute((format(printf,2,3))) = 0;
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virtual void WritePrecacheCommands( idFile *f ) = 0;
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// Convenience functions for specific types.
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virtual const idMaterial * FindMaterial( const char *name, bool makeDefault = true ) = 0;
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virtual const idDeclSkin * FindSkin( const char *name, bool makeDefault = true ) = 0;
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virtual const idSoundShader * FindSound( const char *name, bool makeDefault = true ) = 0;
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virtual const idMaterial * MaterialByIndex( int index, bool forceParse = true ) = 0;
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virtual const idDeclSkin * SkinByIndex( int index, bool forceParse = true ) = 0;
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virtual const idSoundShader * SoundByIndex( int index, bool forceParse = true ) = 0;
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};
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extern idDeclManager * declManager;
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template< declType_t type >
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ID_INLINE void idListDecls_f( const idCmdArgs &args ) {
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declManager->ListType( args, type );
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}
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template< declType_t type >
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ID_INLINE void idPrintDecls_f( const idCmdArgs &args ) {
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declManager->PrintType( args, type );
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}
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#endif /* !__DECLMANAGER_H__ */
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