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A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlGraphics/plugins/ioVLX.cpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #include <vlGraphics/plugins/ioVLX.hpp>
    00033 #include <vlCore/Time.hpp>
    00034
    00035 using namespace vl;
    00036
    00037 //-----------------------------------------------------------------------------
    00038 ref<ResourceDatabase> vl::loadVLT(const String& path)
    00039 {
    00040   ref<VirtualFile> file = vl::locateFile(path);
    00041   return loadVLT(file.get());
    00042 }
    00043 //-----------------------------------------------------------------------------
    00044 ref<ResourceDatabase> vl::loadVLT(VirtualFile* file)
    00045 {
    00046   VLXSerializer serializer;
    00047
    00048   ref<Object> obj = serializer.loadVLT(file);
    00049
    00050   if (serializer.error())
    00051     Log::error( Say("vl::loadVLT : VLXSerializer reported: %s.\n") << serializer.errorString() );
    00052
    00053   if (!obj)
    00054     return NULL;
    00055
    00056   ref<ResourceDatabase> res_db = obj->as<ResourceDatabase>();
    00057
    00058   return res_db;
    00059 }
    00060 //-----------------------------------------------------------------------------
    00061 ref<ResourceDatabase> vl::loadVLB(const String& path)
    00062 {
    00063   ref<VirtualFile> file = vl::locateFile(path);
    00064   return loadVLB(file.get());
    00065 }
    00066 //-----------------------------------------------------------------------------
    00067 ref<ResourceDatabase> vl::loadVLB(VirtualFile* file)
    00068 {
    00069   VLXSerializer serializer;
    00070
    00071   ref<Object> obj = serializer.loadVLB(file);
    00072
    00073   if (serializer.error())
    00074     Log::error( Say("vl::loadVLB : VLXSerializer reported: %s.\n") << serializer.errorString() );
    00075
    00076   if (!obj)
    00077     return NULL;
    00078
    00079   ref<ResourceDatabase> res_db = obj->as<ResourceDatabase>();
    00080
    00081   return res_db;
    00082 }
    00083 //-----------------------------------------------------------------------------
    00084 bool vl::saveVLT(const String& path, const ResourceDatabase* res_db)
    00085 {
    00086   ref<DiskFile> file = new DiskFile(path);
    00087   return saveVLT(file.get(), res_db);
    00088 }
    00089 //-----------------------------------------------------------------------------
    00090 bool vl::saveVLT(VirtualFile* file, const ResourceDatabase* res_db)
    00091 {
    00092   VL_CHECK(res_db);
    00093   if (!res_db)
    00094     return false;
    00095
    00096   VLXSerializer serializer;
    00097   serializer.saveVLT( file, res_db );
    00098
    00099   if (serializer.error())
    00100     Log::error( Say("vl::saveVLT : VLXSerializer reported: %s.\n") << serializer.errorString() );
    00101
    00102   return serializer.error() == VLXSerializer::NoError;
    00103 }
    00104 //-----------------------------------------------------------------------------
    00105 bool vl::saveVLB(const String& path, const ResourceDatabase* res_db)
    00106 {
    00107   ref<DiskFile> file = new DiskFile(path);
    00108   return saveVLB(file.get(), res_db);
    00109 }
    00110 //-----------------------------------------------------------------------------
    00111 bool vl::saveVLB(VirtualFile* file, const ResourceDatabase* res_db)
    00112 {
    00113   VL_CHECK(res_db);
    00114   if (!res_db)
    00115     return false;
    00116
    00117   VLXSerializer serializer;
    00118   serializer.saveVLB( file, res_db );
    00119
    00120   if (serializer.error())
    00121     Log::error( Say("vl::saveVLB : VLXSerializer reported: %s.\n") << serializer.errorString() );
    00122
    00123   return serializer.error() == VLXSerializer::NoError;
    00124 }
    00125 //-----------------------------------------------------------------------------
    00126 bool vl::isVLT(const String& path)
    00127 {
    00128   ref<VirtualFile> file = vl::locateFile(path);
    00129   return isVLT(file.get());
    00130 }
    00131 //-----------------------------------------------------------------------------
    00132 bool vl::isVLT(VirtualFile* file)
    00133 {
    00134   if (!file)
    00135     return false;
    00136   char vlx[12] = { 0 };
    00137   memset(vlx, 0, sizeof(vlx));
    00138   file->close();
    00139   file->open(OM_ReadOnly);
    00140   file->read(vlx, sizeof(vlx));
    00141   file->close();
    00142   return memcmp(vlx, "VLX version=", sizeof(vlx)) == 0;
    00143 }
    00144 //-----------------------------------------------------------------------------
    00145 bool vl::isVLB(const String& path)
    00146 {
    00147   ref<VirtualFile> file = vl::locateFile(path);
    00148   return isVLT(file.get());
    00149 }
    00150 //-----------------------------------------------------------------------------
    00151 bool vl::isVLB(VirtualFile* file)
    00152 {
    00153   if (!file)
    00154     return false;
    00155   unsigned char vlx_identifier[] = { 0xAB, 'V', 'L', 'X', 0xBB, 0x0D, 0x0A, 0x1A, 0x0A };
    00156   unsigned char vlx[sizeof(vlx_identifier)];
    00157   memset(vlx, 0, sizeof(vlx));
    00158   file->close();
    00159   file->open(OM_ReadOnly);
    00160   file->read(vlx, sizeof(vlx));
    00161   file->close();
    00162   return memcmp(vlx, vlx_identifier, sizeof(vlx_identifier)) == 0;
    00163 }
    00164 //-----------------------------------------------------------------------------

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:41.
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