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 SoGLCacheContextElement class. 00048 | 00049 | Author(s) : 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_CACHE_CONTEXT_ELEMENT 00056 #define _SO_CACHE_CONTEXT_ELEMENT 00057 00058 #include <Inventor/system/SbOpenGL.h> 00059 #include <Inventor/elements/SoSubElement.h> 00060 00063 #define OIV_AUTO_CACHE_DEFAULT_MAX 100000 00064 00102 00113 00114 SoEXTENDER class INVENTOR_API SoGLDisplayList { 00115 00116 public: 00122 enum Type { 00123 DISPLAY_LIST, 00124 TEXTURE_OBJECT, 00125 VERTEX_BUFFER_OBJECT 00126 }; 00127 SoGLDisplayList(SoState *state, Type type, int numToAllocate=1); 00128 00135 void ref(); 00136 void unref(SoState *state = NULL); 00137 00143 void open(SoState *state, int index = 0); 00144 void close(SoState *state); 00145 00153 void call(SoState *state, int index = 0); 00154 void addDependency(SoState *state); 00155 00159 Type getType() { return type; } 00160 int getNumAllocated() { return num; } 00161 GLuint getFirstIndex() { return startIndex; } 00162 int getContext() { return context; } 00163 00164 private: 00165 ~SoGLDisplayList(); 00166 00167 Type type; 00168 GLuint startIndex; 00169 int num; 00170 int refCount; 00171 int context; 00172 00173 friend class SoGLCacheContextElement; 00174 }; 00175 00176 class SbIntList; 00177 00178 SoEXTENDER class INVENTOR_API SoGLCacheContextElement : public SoElement { 00179 00180 SO_ELEMENT_HEADER(SoGLCacheContextElement); 00181 00182 public: 00184 virtual void init(SoState *state); 00185 00197 static void set(SoState *state, int context, 00198 SbBool is2PassTransparency, 00199 SbBool isRemoteRendering); 00200 00202 static int get(SoState *state); 00203 00206 00209 static int getExtID(const char *str); 00210 00212 static SbBool extSupported(SoState *state, int ext); 00213 00216 static SbBool areMipMapsFast(SoState *state); 00217 00219 00226 enum { 00227 DO_AUTO_CACHE = 1, 00228 DONT_AUTO_CACHE = 2 00229 }; 00230 00234 static void shouldAutoCache(SoState *state, int bits) 00235 { 00236 SoGLCacheContextElement *elt = (SoGLCacheContextElement *) 00237 state->getElementNoPush(classStackIndex); 00238 elt->autoCacheBits |= bits; 00239 } 00240 00242 static void setAutoCacheBits(SoState *state, int bits) 00243 { ((SoGLCacheContextElement *)state->getElementNoPush( 00244 classStackIndex))->autoCacheBits = bits; 00245 } 00246 00247 static int resetAutoCacheBits(SoState *state) 00248 { 00249 SoGLCacheContextElement *elt = (SoGLCacheContextElement *) 00250 state->getElementNoPush(classStackIndex); 00251 int result = elt->autoCacheBits; 00253 elt->autoCacheBits = elt->isRemoteRendering; 00254 00255 return result; 00256 } 00257 00258 static SbBool getIsRemoteRendering(SoState *state) 00259 { 00260 const SoGLCacheContextElement *elt = 00261 (const SoGLCacheContextElement *) 00262 state->getConstElement(classStackIndex); 00263 return elt->isRemoteRendering; 00264 } 00265 00267 00269 virtual SbBool matches(const SoElement *elt) const; 00270 00272 virtual SoElement *copyMatchInfo() const; 00273 00275 virtual void print(FILE *fp) const; 00276 00277 SoINTERNAL public: 00278 static void initClass(); 00279 00280 protected: 00281 int context; 00282 SbBool is2PassTransp; 00283 SbBool isRemoteRendering; 00284 int autoCacheBits; 00285 00286 virtual ~SoGLCacheContextElement(); 00287 00288 private: 00297 static void freeList(SoState *state, 00298 SoGLDisplayList *list); 00299 00300 static SbPList * waitingToBeFreed; 00301 static SbPList * extensionList; 00302 00303 friend class SoGLDisplayList; 00304 }; 00305 00306 #endif /* _SO_CACHE_CONTEXT_ELEMENT */