# OgreScriptCompiler.h

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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright (c) 2000-2006 Torus Knot Software Ltd
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software; you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation; either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023
    00024 You may alternatively use this source under the terms of a specific version of
    00025 the OGRE Unrestricted License provided you have obtained such a license from
    00026 Torus Knot Software Ltd.
    00027 -----------------------------------------------------------------------------
    00028 */
    00029
    00030 #ifndef __SCRIPTCOMPILER_H_
    00031 #define __SCRIPTCOMPILER_H_
    00032
    00033 #include "OgreSharedPtr.h"
    00034 #include "OgreMaterial.h"
    00035 #include "OgreHighLevelGpuProgram.h"
    00036 #include "OgreCompositor.h"
    00037 #include "OgreCompositionPass.h"
    00038 #include "OgreAny.h"
    00039
    00040 namespace Ogre
    00041 {
    00043     enum ConcreteNodeType
    00044     {
    00045         CNT_VARIABLE,
    00046         CNT_VARIABLE_ASSIGN,
    00047         CNT_WORD,
    00048         CNT_IMPORT,
    00049         CNT_QUOTE,
    00050         CNT_LBRACE,
    00051         CNT_RBRACE,
    00052         CNT_COLON
    00053     };
    00054
    00056     struct ConcreteNode;
    00057     typedef SharedPtr<ConcreteNode> ConcreteNodePtr;
    00058     typedef std::list<ConcreteNodePtr> ConcreteNodeList;
    00059     typedef SharedPtr<ConcreteNodeList> ConcreteNodeListPtr;
    00060     struct ConcreteNode : public ScriptCompilerAlloc
    00061     {
    00062         String token, file;
    00063         unsigned int line;
    00064         ConcreteNodeType type;
    00065         ConcreteNodeList children;
    00066         ConcreteNode *parent;
    00067     };
    00068
    00070     enum AbstractNodeType
    00071     {
    00072         ANT_UNKNOWN,
    00073         ANT_ATOM,
    00074         ANT_OBJECT,
    00075         ANT_PROPERTY,
    00076         ANT_IMPORT,
    00077         ANT_VARIABLE_SET,
    00078         ANT_VARIABLE_ACCESS
    00079     };
    00080     class AbstractNode;
    00081     typedef SharedPtr<AbstractNode> AbstractNodePtr;
    00082     typedef std::list<AbstractNodePtr> AbstractNodeList;
    00083     typedef SharedPtr<AbstractNodeList> AbstractNodeListPtr;
    00084
    00085     class _OgreExport AbstractNode : public AbstractNodeAlloc
    00086     {
    00087     public:
    00088         String file;
    00089         unsigned int line;
    00090         AbstractNodeType type;
    00091         AbstractNode *parent;
    00092         Any context; // A holder for translation context data
    00093     public:
    00094         AbstractNode(AbstractNode *ptr);
    00095         virtual ~AbstractNode(){}
    00097         virtual AbstractNode *clone() const = 0;
    00099         virtual String getValue() const = 0;
    00100     };
    00101
    00103     class _OgreExport AtomAbstractNode : public AbstractNode
    00104     {
    00105     public:
    00106         String value;
    00107         uint32 id;
    00108     public:
    00109         AtomAbstractNode(AbstractNode *ptr);
    00110         AbstractNode *clone() const;
    00111         String getValue() const;
    00112     private:
    00113         void parseNumber() const;
    00114     };
    00115
    00117     class _OgreExport ObjectAbstractNode : public AbstractNode
    00118     {
    00119     private:
    00120         std::map<String,String> mEnv;
    00121     public:
    00122         String name, cls, base;
    00123         uint32 id;
    00124         bool abstract;
    00125         AbstractNodeList children;
    00126         AbstractNodeList values;
    00127         AbstractNodeList overrides; // For use when processing object inheritance and overriding
    00128     public:
    00129         ObjectAbstractNode(AbstractNode *ptr);
    00130         AbstractNode *clone() const;
    00131         String getValue() const;
    00132
    00133         void addVariable(const String &name);
    00134         void setVariable(const String &name, const String &value);
    00135         std::pair<bool,String> getVariable(const String &name) const;
    00136         const std::map<String,String> &getVariables() const;
    00137     };
    00138
    00140     class _OgreExport PropertyAbstractNode : public AbstractNode
    00141     {
    00142     public:
    00143         String name;
    00144         uint32 id;
    00145         AbstractNodeList values;
    00146     public:
    00147         PropertyAbstractNode(AbstractNode *ptr);
    00148         AbstractNode *clone() const;
    00149         String getValue() const;
    00150     };
    00151
    00153     class _OgreExport ImportAbstractNode : public AbstractNode
    00154     {
    00155     public:
    00156         String target, source;
    00157     public:
    00158         ImportAbstractNode();
    00159         AbstractNode *clone() const;
    00160         String getValue() const;
    00161     };
    00162
    00164     class _OgreExport VariableAccessAbstractNode : public AbstractNode
    00165     {
    00166     public:
    00167         String name;
    00168     public:
    00169         VariableAccessAbstractNode(AbstractNode *ptr);
    00170         AbstractNode *clone() const;
    00171         String getValue() const;
    00172     };
    00173
    00174     class ScriptCompilerListener;
    00175
    00180     class _OgreExport ScriptCompiler : public ScriptCompilerAlloc
    00181     {
    00182     public: // Externally accessible types
    00183         typedef std::map<String,uint32> IdMap;
    00184
    00185         // The container for errors
    00186         struct Error : public ScriptCompilerAlloc
    00187         {
    00188             String file, message;
    00189             int line;
    00190             uint32 code;
    00191         };
    00192         typedef SharedPtr<Error> ErrorPtr;
    00193         typedef std::list<ErrorPtr> ErrorList;
    00194
    00195         // These are the built-in error codes
    00196         enum{
    00197             CE_STRINGEXPECTED,
    00198             CE_NUMBEREXPECTED,
    00199             CE_FEWERPARAMETERSEXPECTED,
    00200             CE_VARIABLEEXPECTED,
    00201             CE_UNDEFINEDVARIABLE,
    00202             CE_OBJECTNAMEEXPECTED,
    00203             CE_OBJECTALLOCATIONERROR,
    00204             CE_INVALIDPARAMETERS,
    00205             CE_DUPLICATEOVERRIDE,
    00206             CE_UNEXPECTEDTOKEN,
    00207             CE_OBJECTBASENOTFOUND,
    00208             CE_UNSUPPORTEDBYRENDERSYSTEM,
    00209             CE_REFERENCETOANONEXISTINGOBJECT
    00210         };
    00211         static String formatErrorCode(uint32 code);
    00212     public:
    00213         ScriptCompiler();
    00214         virtual ~ScriptCompiler() {}
    00215
    00217
    00222         bool compile(const String &str, const String &source, const String &group);
    00224         bool compile(const ConcreteNodeListPtr &nodes, const String &group);
    00226         bool _compile(AbstractNodeListPtr nodes, const String &group);
    00228         void addError(uint32 code, const String &file, int line, const String &msg = "");
    00230         void setListener(ScriptCompilerListener *listener);
    00232         ScriptCompilerListener *getListener();
    00234         const String &getResourceGroup() const;
    00236
    00241         void addNameExclusion(const String &type);
    00243         void removeNameExclusion(const String &type);
    00245         bool _fireEvent(const String &name, const std::vector<Any> &args, Any *retval);
    00247         Any _fireCreateObject(const String &type, const std::vector<Any> &args);
    00248     private: // Tree processing
    00249         AbstractNodeListPtr convertToAST(const ConcreteNodeListPtr &nodes);
    00251         void processImports(AbstractNodeListPtr &nodes);
    00253         AbstractNodeListPtr loadImportPath(const String &name);
    00255         AbstractNodeListPtr locateTarget(AbstractNodeList *nodes, const String &target);
    00257         void processObjects(AbstractNodeList *nodes, const AbstractNodeListPtr &top);
    00259         void processVariables(AbstractNodeList *nodes);
    00261         void overlayObject(const AbstractNodePtr &source, ObjectAbstractNode *dest);
    00263         bool isNameExcluded(const String &cls, AbstractNode *parent);
    00265         void initWordMap();
    00266     private:
    00267         // Resource group
    00268         String mGroup;
    00269         // The word -> id conversion table
    00270         IdMap mIds;
    00271         // This is an environment map
    00272         typedef std::map<String,String> Environment;
    00273         Environment mEnv;
    00274
    00275         typedef std::map<String,AbstractNodeListPtr> ImportCacheMap;
    00276         ImportCacheMap mImports; // The set of imported scripts to avoid circular dependencies
    00277         typedef std::multimap<String,String> ImportRequestMap;
    00278         ImportRequestMap mImportRequests; // This holds the target objects for each script to be imported
    00279
    00280         // This stores the imports of the scripts, so they are separated and can be treated specially
    00281         AbstractNodeList mImportTable;
    00282
    00283         // Error list
    00284         ErrorList mErrors;
    00285
    00286         // The listener
    00287         ScriptCompilerListener *mListener;
    00288     private: // Internal helper classes and processors
    00289         class AbstractTreeBuilder
    00290         {
    00291         private:
    00292             AbstractNodeListPtr mNodes;
    00293             AbstractNode *mCurrent;
    00294             ScriptCompiler *mCompiler;
    00295         public:
    00296             AbstractTreeBuilder(ScriptCompiler *compiler);
    00297             const AbstractNodeListPtr &getResult() const;
    00298             void visit(ConcreteNode *node);
    00299             static void visit(AbstractTreeBuilder *visitor, const ConcreteNodeList &nodes);
    00300         };
    00301         friend class AbstractTreeBuilder;
    00302     public: // Public translator definitions
    00303         // This enum are built-in word id values
    00304         enum
    00305         {
    00306             ID_ON = 1,
    00307             ID_OFF = 2,
    00308             ID_TRUE = 1,
    00309             ID_FALSE = 2,
    00310             ID_YES = 1,
    00311             ID_NO = 2
    00312         };
    00313     };
    00314
    00319     class _OgreExport ScriptCompilerListener
    00320     {
    00321     public:
    00322         ScriptCompilerListener();
    00323         virtual ~ScriptCompilerListener() {}
    00324
    00326         virtual ConcreteNodeListPtr importFile(ScriptCompiler *compiler, const String &name);
    00328         virtual void preConversion(ScriptCompiler *compiler, ConcreteNodeListPtr nodes);
    00330
    00336         virtual bool postConversion(ScriptCompiler *compiler, const AbstractNodeListPtr&);
    00338         virtual void handleError(ScriptCompiler *compiler, uint32 code, const String &file, int line, const String &msg);
    00340
    00366         virtual bool handleEvent(ScriptCompiler *compiler, const String &name, const std::vector<Ogre::Any> &args, Ogre::Any *retval);
    00368
    00409         virtual Ogre::Any createObject(ScriptCompiler *compiler, const String &type, const std::vector<Ogre::Any> &args);
    00410     };
    00411
    00412     class ScriptTranslator;
    00413     class ScriptTranslatorManager;
    00414
    00418     class _OgreExport ScriptCompilerManager : public Singleton<ScriptCompilerManager>, public ScriptLoader, public ScriptCompilerAlloc
    00419     {
    00420     private:
    00421         OGRE_AUTO_MUTEX
    00422
    00423         // A list of patterns loaded by this compiler manager
    00424         StringVector mScriptPatterns;
    00425
    00426         // A pointer to the listener used for compiling scripts
    00427         ScriptCompilerListener *mListener;
    00428
    00429         // Stores a map from object types to the translators that handle them
    00430         std::vector<ScriptTranslatorManager*> mManagers;
    00431
    00432         // A pointer to the built-in ScriptTranslatorManager
    00433         ScriptTranslatorManager *mBuiltinTranslatorManager;
    00434
    00435         // A pointer to the specific compiler instance used
    00436         OGRE_THREAD_POINTER(ScriptCompiler, mScriptCompiler);
    00437     public:
    00438         ScriptCompilerManager();
    00439         virtual ~ScriptCompilerManager();
    00440
    00442         void setListener(ScriptCompilerListener *listener);
    00444         ScriptCompilerListener *getListener();
    00445
    00447         void addTranslatorManager(ScriptTranslatorManager *man);
    00449         void removeTranslatorManager(ScriptTranslatorManager *man);
    00451         void clearTranslatorManagers();
    00453         ScriptTranslator *getTranslator(const AbstractNodePtr &node);
    00454
    00456         const StringVector& getScriptPatterns(void) const;
    00458         void parseScript(DataStreamPtr& stream, const String& groupName);
    00460         Real getLoadingOrder(void) const;
    00461
    00477         static ScriptCompilerManager& getSingleton(void);
    00493         static ScriptCompilerManager* getSingletonPtr(void);
    00494     };
    00495
    00497     enum
    00498     {
    00499         ID_MATERIAL = 3,
    00500         ID_VERTEX_PROGRAM,
    00501         ID_GEOMETRY_PROGRAM,
    00502         ID_FRAGMENT_PROGRAM,
    00503         ID_TECHNIQUE,
    00504         ID_PASS,
    00505         ID_TEXTURE_UNIT,
    00506         ID_VERTEX_PROGRAM_REF,
    00507         ID_GEOMETRY_PROGRAM_REF,
    00508         ID_FRAGMENT_PROGRAM_REF,
    00509         ID_SHADOW_CASTER_VERTEX_PROGRAM_REF,
    00510         ID_SHADOW_RECEIVER_VERTEX_PROGRAM_REF,
    00511         ID_SHADOW_RECEIVER_FRAGMENT_PROGRAM_REF,
    00512         ID_SHADOW_CASTER_MATERIAL,
    00513         ID_SHADOW_RECEIVER_MATERIAL,
    00514
    00515         ID_LOD_DISTANCES,
    00516         ID_RECEIVE_SHADOWS,
    00517         ID_TRANSPARENCY_CASTS_SHADOWS,
    00518         ID_SET_TEXTURE_ALIAS,
    00519
    00520         ID_SOURCE,
    00521         ID_SYNTAX,
    00522         ID_DEFAULT_PARAMS,
    00523         ID_PARAM_INDEXED,
    00524         ID_PARAM_NAMED,
    00525         ID_PARAM_INDEXED_AUTO,
    00526         ID_PARAM_NAMED_AUTO,
    00527
    00528         ID_SCHEME,
    00529         ID_LOD_INDEX,
    00530         ID_GPU_VENDOR_RULE,
    00531         ID_GPU_DEVICE_RULE,
    00532         ID_INCLUDE,
    00533         ID_EXCLUDE,
    00534
    00535         ID_AMBIENT,
    00536         ID_DIFFUSE,
    00537         ID_SPECULAR,
    00538         ID_EMISSIVE,
    00539             ID_VERTEXCOLOUR,
    00540         ID_SCENE_BLEND,
    00541             ID_COLOUR_BLEND,
    00542             ID_ONE,
    00543             ID_ZERO,
    00544             ID_DEST_COLOUR,
    00545             ID_SRC_COLOUR,
    00546             ID_ONE_MINUS_DEST_COLOUR,
    00547             ID_ONE_MINUS_SRC_COLOUR,
    00548             ID_DEST_ALPHA,
    00549             ID_SRC_ALPHA,
    00550             ID_ONE_MINUS_DEST_ALPHA,
    00551             ID_ONE_MINUS_SRC_ALPHA,
    00552         ID_SEPARATE_SCENE_BLEND,
    00553         ID_DEPTH_CHECK,
    00554         ID_DEPTH_WRITE,
    00555         ID_DEPTH_FUNC,
    00556         ID_DEPTH_BIAS,
    00557         ID_ITERATION_DEPTH_BIAS,
    00558             ID_ALWAYS_FAIL,
    00559             ID_ALWAYS_PASS,
    00560             ID_LESS_EQUAL,
    00561             ID_LESS,
    00562             ID_EQUAL,
    00563             ID_NOT_EQUAL,
    00564             ID_GREATER_EQUAL,
    00565             ID_GREATER,
    00566         ID_ALPHA_REJECTION,
    00567         ID_ALPHA_TO_COVERAGE,
    00568         ID_LIGHT_SCISSOR,
    00569         ID_LIGHT_CLIP_PLANES,
    00570         ID_TRANSPARENT_SORTING,
    00571         ID_ILLUMINATION_STAGE,
    00572             ID_DECAL,
    00573         ID_CULL_HARDWARE,
    00574             ID_CLOCKWISE,
    00575             ID_ANTICLOCKWISE,
    00576         ID_CULL_SOFTWARE,
    00577             ID_BACK,
    00578             ID_FRONT,
    00579         ID_NORMALISE_NORMALS,
    00580         ID_LIGHTING,
    00581         ID_SHADING,
    00582             ID_FLAT,
    00583             ID_GOURAUD,
    00584             ID_PHONG,
    00585         ID_POLYGON_MODE,
    00586             ID_SOLID,
    00587             ID_WIREFRAME,
    00588             ID_POINTS,
    00589         ID_POLYGON_MODE_OVERRIDEABLE,
    00590         ID_FOG_OVERRIDE,
    00591             ID_NONE,
    00592             ID_LINEAR,
    00593             ID_EXP,
    00594             ID_EXP2,
    00595         ID_COLOUR_WRITE,
    00596         ID_MAX_LIGHTS,
    00597         ID_START_LIGHT,
    00598         ID_ITERATION,
    00599             ID_ONCE,
    00600             ID_ONCE_PER_LIGHT,
    00601             ID_PER_LIGHT,
    00602             ID_PER_N_LIGHTS,
    00603             ID_POINT,
    00604             ID_SPOT,
    00605             ID_DIRECTIONAL,
    00606         ID_POINT_SIZE,
    00607         ID_POINT_SPRITES,
    00608         ID_POINT_SIZE_ATTENUATION,
    00609         ID_POINT_SIZE_MIN,
    00610         ID_POINT_SIZE_MAX,
    00611
    00612         ID_TEXTURE_ALIAS,
    00613         ID_TEXTURE,
    00614             ID_1D,
    00615             ID_2D,
    00616             ID_3D,
    00617             ID_CUBIC,
    00618             ID_UNLIMITED,
    00619             ID_ALPHA,
    00620             ID_GAMMA,
    00621         ID_ANIM_TEXTURE,
    00622         ID_CUBIC_TEXTURE,
    00623             ID_SEPARATE_UV,
    00624             ID_COMBINED_UVW,
    00625         ID_TEX_COORD_SET,
    00626         ID_TEX_ADDRESS_MODE,
    00627             ID_WRAP,
    00628             ID_CLAMP,
    00629             ID_BORDER,
    00630             ID_MIRROR,
    00631         ID_TEX_BORDER_COLOUR,
    00632         ID_FILTERING,
    00633             ID_BILINEAR,
    00634             ID_TRILINEAR,
    00635             ID_ANISOTROPIC,
    00636         ID_MAX_ANISOTROPY,
    00637         ID_MIPMAP_BIAS,
    00638         ID_COLOUR_OP,
    00639             ID_REPLACE,
    00640             ID_ADD,
    00641             ID_MODULATE,
    00642             ID_ALPHA_BLEND,
    00643         ID_COLOUR_OP_EX,
    00644             ID_SOURCE1,
    00645             ID_SOURCE2,
    00646             ID_MODULATE_X2,
    00647             ID_MODULATE_X4,
    00648             ID_ADD_SIGNED,
    00649             ID_ADD_SMOOTH,
    00650             ID_SUBTRACT,
    00651             ID_BLEND_DIFFUSE_COLOUR,
    00652             ID_BLEND_DIFFUSE_ALPHA,
    00653             ID_BLEND_TEXTURE_ALPHA,
    00654             ID_BLEND_CURRENT_ALPHA,
    00655             ID_BLEND_MANUAL,
    00656             ID_DOT_PRODUCT,
    00657             ID_SRC_CURRENT,
    00658             ID_SRC_TEXTURE,
    00659             ID_SRC_DIFFUSE,
    00660             ID_SRC_SPECULAR,
    00661             ID_SRC_MANUAL,
    00662         ID_COLOUR_OP_MULTIPASS_FALLBACK,
    00663         ID_ALPHA_OP_EX,
    00664         ID_ENV_MAP,
    00665             ID_SPHERICAL,
    00666             ID_PLANAR,
    00667             ID_CUBIC_REFLECTION,
    00668             ID_CUBIC_NORMAL,
    00669         ID_SCROLL,
    00670         ID_SCROLL_ANIM,
    00671         ID_ROTATE,
    00672         ID_ROTATE_ANIM,
    00673         ID_SCALE,
    00674         ID_WAVE_XFORM,
    00675             ID_SCROLL_X,
    00676             ID_SCROLL_Y,
    00677             ID_SCALE_X,
    00678             ID_SCALE_Y,
    00679             ID_SINE,
    00680             ID_TRIANGLE,
    00681             ID_SQUARE,
    00682             ID_SAWTOOTH,
    00683             ID_INVERSE_SAWTOOTH,
    00684         ID_TRANSFORM,
    00685         ID_BINDING_TYPE,
    00686             ID_VERTEX,
    00687             ID_FRAGMENT,
    00688         ID_CONTENT_TYPE,
    00689             ID_NAMED,
    00690             ID_SHADOW,
    00691         ID_TEXTURE_SOURCE,
    00692
    00693         ID_PARTICLE_SYSTEM,
    00694         ID_EMITTER,
    00695         ID_AFFECTOR,
    00696
    00697         ID_COMPOSITOR,
    00698             ID_TARGET,
    00699             ID_TARGET_OUTPUT,
    00700
    00701             ID_INPUT,
    00702                 ID_PREVIOUS,
    00703                 ID_TARGET_WIDTH,
    00704                 ID_TARGET_HEIGHT,
    00705                 ID_TARGET_WIDTH_SCALED,
    00706                 ID_TARGET_HEIGHT_SCALED,
    00707             ID_ONLY_INITIAL,
    00708             ID_VISIBILITY_MASK,
    00709             ID_LOD_BIAS,
    00710             ID_MATERIAL_SCHEME,
    00711             ID_SHADOWS_ENABLED,
    00712
    00713             ID_CLEAR,
    00714             ID_STENCIL,
    00715             ID_RENDER_SCENE,
    00716             ID_RENDER_QUAD,
    00717             ID_IDENTIFIER,
    00718             ID_FIRST_RENDER_QUEUE,
    00719             ID_LAST_RENDER_QUEUE,
    00720
    00721             ID_BUFFERS,
    00722                 ID_COLOUR,
    00723                 ID_DEPTH,
    00724             ID_COLOUR_VALUE,
    00725             ID_DEPTH_VALUE,
    00726             ID_STENCIL_VALUE,
    00727
    00728             ID_CHECK,
    00729             ID_COMP_FUNC,
    00730             ID_REF_VALUE,
    00731             ID_MASK,
    00732             ID_FAIL_OP,
    00733                 ID_KEEP,
    00734                 ID_INCREMENT,
    00735                 ID_DECREMENT,
    00736                 ID_INCREMENT_WRAP,
    00737                 ID_DECREMENT_WRAP,
    00738                 ID_INVERT,
    00739             ID_DEPTH_FAIL_OP,
    00740             ID_PASS_OP,
    00741             ID_TWO_SIDED,
    00742         ID_END_BUILTIN_IDS
    00743     };
    00744 }
    00745
    00746 #endif

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sat Apr 11 13:46:43 2009