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Open Inventor Reference
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00001 /* 00002 * 00003 * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved. 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * Further, this software is distributed without any warranty that it is 00016 * free of the rightful claim of any third person regarding infringement 00017 * or the like. Any license provided herein, whether implied or 00018 * otherwise, applies only to this software file. Patent licenses, if 00019 * any, provided herein do not apply to combinations of this program with 00020 * other software, or any other product whatsoever. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 00027 * Mountain View, CA 94043, or: 00028 * 00029 * http://www.sgi.com 00030 * 00031 * For further information regarding this notice, see: 00032 * 00033 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 00034 * 00035 */ 00036 00037 00038 /* 00039 * Copyright (C) 1990,91 Silicon Graphics, Inc. 00040 * 00041 _______________________________________________________________________ 00042 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00043 | 00044 | $Revision: 1.1.1.1 $ 00045 | 00046 | Description: 00047 | This file defines the SoLazyElement and SoColorPacker classes. 00048 | 00049 | Author(s) : Alan Norton, Gavin Bell 00050 | 00051 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00052 _______________________________________________________________________ 00053 */ 00054 00055 #ifndef _SO_LAZY_ELEMENT 00056 #define _SO_LAZY_ELEMENT 00057 00058 #include <Inventor/system/SbSystem.h> 00059 #include <Inventor/SbColor.h> 00060 #include <Inventor/elements/SoElement.h> 00061 #include <Inventor/elements/SoSubElement.h> 00062 #include <math.h> 00063 00064 class SoMFFloat; class SoMFColor; class SoColorPacker; 00065 00082 00084 #define SO_LAZY_SHINY_THRESHOLD 0.005 00085 00087 #define SO_LAZY_NUM_COMPONENTS 9 00088 00089 SoEXTENDER class INVENTOR_API SoLazyElement : public SoElement { 00090 00091 SO_ELEMENT_HEADER(SoLazyElement); 00092 00093 public: 00100 enum cases{ 00101 LIGHT_MODEL_CASE = 0, 00102 COLOR_MATERIAL_CASE = 1, 00103 DIFFUSE_CASE = 2, 00104 AMBIENT_CASE = 3, 00105 EMISSIVE_CASE = 4, 00106 SPECULAR_CASE = 5, 00107 SHININESS_CASE = 6, 00108 BLENDING_CASE = 7, 00109 TRANSPARENCY_CASE = 8 00110 }; 00111 enum masks{ 00112 LIGHT_MODEL_MASK = 1<<LIGHT_MODEL_CASE, 00113 COLOR_MATERIAL_MASK = 1<<COLOR_MATERIAL_CASE, 00114 DIFFUSE_MASK = 1<<DIFFUSE_CASE, 00115 AMBIENT_MASK = 1<<AMBIENT_CASE, 00116 EMISSIVE_MASK = 1<<EMISSIVE_CASE, 00117 SPECULAR_MASK = 1<<SPECULAR_CASE, 00118 SHININESS_MASK = 1<<SHININESS_CASE, 00119 TRANSPARENCY_MASK = 1<<TRANSPARENCY_CASE, 00120 BLENDING_MASK = 1<<BLENDING_CASE, 00121 ALL_MASK = (1<<SO_LAZY_NUM_COMPONENTS)-1 00122 }; 00123 00125 enum LightModel { 00126 BASE_COLOR = 0, 00127 PHONG = 1 00128 }; 00129 00131 virtual void init(SoState *state); 00132 00134 00135 static void setDiffuse(SoState *state, SoNode *node, int32_t numColors, 00136 const SbColor *colors, SoColorPacker *cPacker); 00137 static void setTransparency(SoState *state, SoNode *node, int32_t numTransp, 00138 const float *transp, SoColorPacker *cPacker); 00139 static void setPacked(SoState *state, SoNode *node, 00140 int32_t numColors, const uint32_t *colors); 00141 static void setColorIndices(SoState *state, SoNode *node, 00142 int32_t numIndices, const int32_t *indices); 00143 static void setAmbient(SoState *state, const SbColor* color); 00144 static void setEmissive(SoState *state, const SbColor* color); 00145 static void setSpecular(SoState *state, const SbColor* color); 00146 static void setShininess(SoState *state, float value); 00147 static void setColorMaterial(SoState *state, SbBool value); 00148 static void setBlending(SoState *state, SbBool value); 00149 static void setLightModel(SoState *state, const int32_t model); 00150 00154 static const SbColor & getDiffuse(SoState* state, int index); 00155 static float getTransparency(SoState*, int index); 00156 static const uint32_t *getPackedColors(SoState*); 00157 static const int32_t *getColorIndices(SoState*); 00158 static int32_t getColorIndex(SoState*, int num); 00159 static const SbColor & getAmbient(SoState*); 00160 static const SbColor & getEmissive(SoState*); 00161 static const SbColor & getSpecular(SoState*); 00162 static float getShininess(SoState*); 00163 static SbBool getColorMaterial(SoState*); 00164 static SbBool getBlending(SoState*); 00165 static int32_t getLightModel(SoState*); 00166 00168 int32_t getNumDiffuse() const 00169 {return ivState.numDiffuseColors;} 00170 int32_t getNumTransparencies() const 00171 {return ivState.numTransparencies;} 00172 int32_t getNumColorIndices() const 00173 {if (ivState.colorIndices) 00174 return ivState.numDiffuseColors; 00175 else return 0;} 00176 SbBool isPacked() const 00177 {return ivState.packed;} 00178 SbBool isTransparent() const 00179 {return(ivState.packedTransparent || 00180 (ivState.numTransparencies > 1)|| 00181 (ivState.transparencies[0]>0.0));} 00182 00191 static SoLazyElement * getInstance(SoState *state) 00192 { return (SoLazyElement *) 00193 (state->getElementNoPush(classStackIndex));} 00194 00196 static SbColor getDefaultDiffuse() 00197 {return SbColor(0.8f, 0.8f, 0.8f);} 00198 static SbColor getDefaultAmbient() 00199 {return SbColor(0.2f, 0.2f, 0.2f);} 00200 static SbColor getDefaultSpecular() 00201 {return SbColor(0.0f, 0.0f, 0.0f);} 00202 static SbColor getDefaultEmissive() 00203 {return SbColor(0.0f, 0.0f, 0.0f);} 00204 static float getDefaultShininess() 00205 {return 0.2f;} 00206 static uint32_t getDefaultPacked() 00207 {return (0xccccccff);} 00208 static float getDefaultTransparency() 00209 {return 0.0f;} 00210 static int32_t getDefaultLightModel() 00211 {return PHONG;} 00212 static int32_t getDefaultColorIndex() 00213 {return 1;} 00214 00215 SoINTERNAL public: 00216 00218 static void setMaterials(SoState *state, SoNode *node, uint32_t bitmask, 00219 SoColorPacker *cPacker, 00220 const SoMFColor& diffuse, const SoMFFloat& transp, 00221 const SoMFColor& ambient, const SoMFColor& emissive, 00222 const SoMFColor& specular, const SoMFFloat& shininess); 00223 00225 virtual void push(SoState *state); 00226 00230 virtual SbBool matches(const SoElement *) const; 00231 00232 virtual SoElement *copyMatchInfo() const; 00233 00235 static SoLazyElement * getWInstance(SoState *state) 00236 {return (SoLazyElement *) 00237 (state->getElement(classStackIndex));} 00238 00240 virtual void print(FILE *fp) const; 00241 00243 static void initClass(); 00244 00249 const uint32_t *getPackedPointer() const 00250 {return ivState.packedColors;} 00251 00252 const SbColor* getDiffusePointer() const 00253 {return ivState.diffuseColors; } 00254 00255 const int32_t *getColorIndexPointer() const 00256 {return ivState.colorIndices;} 00257 00258 const float *getTransparencyPointer() const 00259 {return ivState.transparencies;} 00260 00263 static void setTransparencyType(SoState *state, int32_t type); 00264 00265 enum internalMasks{ 00266 OTHER_COLOR_MASK = AMBIENT_MASK|EMISSIVE_MASK|SPECULAR_MASK|SHININESS_MASK, 00267 ALL_COLOR_MASK = OTHER_COLOR_MASK|DIFFUSE_MASK, 00268 NO_COLOR_MASK = ALL_MASK & (~ALL_COLOR_MASK), 00269 ALL_BUT_DIFFUSE_MASK = ALL_MASK &(~ DIFFUSE_MASK), 00270 DIFFUSE_ONLY_MASK = ALL_MASK &(~ OTHER_COLOR_MASK) 00271 }; 00272 00273 protected: 00274 00277 virtual void registerRedundantSet(SoState *, uint32_t); 00278 00281 virtual void registerGetDependence(SoState *, uint32_t); 00282 00284 #ifdef WIN32 00285 struct ivStateStructName{ 00286 #else 00287 struct { 00288 #endif 00289 00290 00291 uint32_t diffuseNodeId; 00292 00295 uint32_t transpNodeId; 00296 00299 SbColor ambientColor; 00300 SbColor emissiveColor; 00301 SbColor specularColor; 00302 float shininess; 00303 SbBool colorMaterial; 00304 SbBool blending; 00305 int32_t lightModel; 00306 int32_t stippleNum; 00307 00310 SbBool packed; 00311 SbBool packedTransparent; 00312 int32_t numDiffuseColors; 00313 int32_t numTransparencies; 00314 const SbColor *diffuseColors; 00315 const float *transparencies; 00316 const uint32_t *packedColors; 00317 const int32_t *colorIndices; 00318 SbBool transpType; 00319 uint32_t cacheLevelSetBits; 00320 uint32_t cacheLevelSendBits; 00321 } ivState; 00322 00323 virtual ~SoLazyElement(); 00324 00328 uint32_t invalidBits; 00329 00330 00333 00334 static SbColor *defaultDiffuseColor; 00335 static float *defaultTransparency; 00336 static int32_t *defaultColorIndices; 00337 static uint32_t *defaultPackedColor; 00338 00341 static int getNumPatterns() { return 64; } 00342 00343 private: 00345 virtual void setDiffuseElt(SoNode*, int32_t numColors, 00346 const SbColor *colors, SoColorPacker *cPacker); 00347 virtual void setPackedElt( SoNode *, int32_t numColors, 00348 const uint32_t *colors); 00349 virtual void setColorIndexElt( SoNode*, int32_t numIndices, 00350 const int32_t *indices); 00351 virtual void setTranspElt(SoNode *, int32_t numTrans, 00352 const float *trans, SoColorPacker *cPacker); 00353 00354 virtual void setTranspTypeElt(int32_t type); 00355 virtual void setAmbientElt(const SbColor* color); 00356 virtual void setEmissiveElt(const SbColor* color); 00357 virtual void setSpecularElt(const SbColor* color); 00358 virtual void setShininessElt(float value); 00359 virtual void setColorMaterialElt(SbBool value); 00360 virtual void setBlendingElt(SbBool value); 00361 virtual void setLightModelElt(SoState *state, int32_t model); 00362 virtual void setMaterialElt(SoNode *, uint32_t bitmask, 00363 SoColorPacker *cPacker, const SoMFColor&, const SoMFFloat&, 00364 const SoMFColor&, const SoMFColor&, const SoMFColor&, const SoMFFloat&); 00365 00366 }; 00367 00376 00377 class INVENTOR_API SoColorPacker { 00378 public: 00380 SoColorPacker(); 00381 00383 ~SoColorPacker(); 00384 00385 uint32_t* getPackedColors() const 00386 { return packedColors;} 00387 00388 SbBool diffuseMatch(uint32_t nodeId) 00389 { return (nodeId == diffuseNodeId);} 00390 00391 SbBool transpMatch(uint32_t nodeId) 00392 { return (nodeId == transpNodeId);} 00393 00394 void setNodeIds(uint32_t diffNodeId, uint32_t tNodeId) 00395 {diffuseNodeId = diffNodeId; transpNodeId = tNodeId;} 00396 00397 int32_t getSize() 00398 { return packedArraySize;} 00399 00400 void reallocate(int32_t size); 00401 00402 private: 00404 uint32_t transpNodeId; 00405 uint32_t diffuseNodeId; 00407 uint32_t* packedColors; 00409 int32_t packedArraySize; 00410 }; 00411 00412 00413 #endif /* _SO_LAZY_ELEMENT */ 00414
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