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source: downloads/ogre/Tools/3dsmaxExport/LEXIExporter/LexiExport/Sources/LexiOgreMaterialCompiler.cpp @ 11

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1/*
2-----------------------------------------------------------------------------
3This source file is part of LEXIExporter
4
5Copyright 2006 NDS Limited
6
7Author(s):
8Mark Folkenberg,
9Bo Krohn
10
11This program is free software; you can redistribute it and/or modify it under
12the terms of the GNU Lesser General Public License as published by the Free Software
13Foundation; either version 2 of the License, or (at your option) any later
14version.
15
16This program is distributed in the hope that it will be useful, but WITHOUT
17ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
19
20You should have received a copy of the GNU Lesser General Public License along with
21this program; if not, write to the Free Software Foundation, Inc., 59 Temple
22Place - Suite 330, Boston, MA 02111-1307, USA, or go to
23http://www.gnu.org/copyleft/lesser.txt.
24-----------------------------------------------------------------------------
25*/
26
27#include "LexiStdAfx.h"
28#include "LexiOgreMaterialCompiler.h"
29#include "OgreMaterialManager.h"
30#include "OgreMaterial.h"
31#include <fstream>
32#include <iostream>
33#include <direct.h>
34
35
36COgreMaterialCompiler::COgreMaterialCompiler( CIntermediateMaterial* pIntermediateMaterial )
37{
38        m_pOgreMaterial.setNull();
39        m_pIMaterial = pIntermediateMaterial;
40
41        InitializeOgreComponents();
42        CreateOgreMaterial();
43
44}
45
46COgreMaterialCompiler::~COgreMaterialCompiler( void )
47{
48       
49}
50
51void COgreMaterialCompiler::InitializeOgreComponents( void )
52{
53        Ogre::MaterialManager::getSingletonPtr()->unloadAll();
54        Ogre::MaterialManager::getSingletonPtr()->removeAll();
55}
56
57
58void COgreMaterialCompiler::CreateOgreMaterial( void )
59{
60        assert(m_pIMaterial);
61
62        Ogre::MaterialManager* pMatMgr = Ogre::MaterialManager::getSingletonPtr();
63        m_pOgreMaterial = pMatMgr->getByName( m_pIMaterial->GetName().c_str() );
64
65        if(m_pOgreMaterial.isNull())
66                m_pOgreMaterial = (Ogre::MaterialPtr)pMatMgr->create( m_pIMaterial->GetName().c_str(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME );
67        else 
68                return;
69
70        assert(!m_pOgreMaterial.isNull());
71
72        Ogre::Technique* technique = m_pOgreMaterial->getTechnique(0);
73        if(technique == NULL)
74                technique = m_pOgreMaterial->createTechnique();
75
76        technique->setName("Default");
77
78        Ogre::Pass*     pass = technique->getPass(0);
79        if(pass == NULL)
80                pass = technique->createPass();
81
82        pass->setName("Main");
83        pass->setAmbient( m_pIMaterial->GetAmbientColor() );
84        pass->setSpecular( m_pIMaterial->GetSpecularColor() );
85        pass->setShininess( m_pIMaterial->GetGlossiness() );
86        //pass->setSelfIllumination( );
87        pass->setCullingMode( m_pIMaterial->Get2Sided() ? Ogre::CULL_NONE : Ogre::CULL_CLOCKWISE);
88        pass->setShadingMode( m_pIMaterial->GetFaceted() ? Ogre::SO_FLAT : Ogre::SO_GOURAUD);
89        pass->setPolygonMode( m_pIMaterial->GetWired() ? Ogre::PM_WIREFRAME : Ogre::PM_SOLID);
90
91        // create texture units
92        ParseMaterialMaps(pass);
93}
94
95void COgreMaterialCompiler::ParseMaterialMaps( Ogre::Pass* pass )
96{
97        // Here we should pass the intermediate material on to the plugin which is registered with
98        // a matching mask.. when we have the plugin system up and running :)
99
100        // mask to see if material is of type diffuse or other
101
102        short mask = m_pIMaterial->GetMask();
103
104        LOGINFO "Parsing Material(%s) with Map Mask: %i", m_pIMaterial->GetName().c_str(), mask);
105
106        if(mask == 0)           // no texture maps
107                CreatePureBlinn(pass);
108        else if(mask == 2)              // only diffuse
109                CreateDiffuse(pass);
110        else if(mask == 4)              // only specular color
111                CreateSpecularColor(pass);
112        else if(mask == 8)              // only specular level
113                CreateSpecularLevel(pass);
114        else if(mask == 32)             // only self illumination map
115                CreateSelfIllumination(pass);
116        else if(mask == 66)             // diffuse map + opacity
117                CreateDiffuseAndOpacity(pass);
118        else if(mask & 2)               // fallback on ordinary diffuse
119                CreateDiffuse(pass);
120
121
122//      const std::map< Ogre::String, STextureMapInfo >& lMats = m_pIMaterial->GetTextureMaps();
123//      std::map< Ogre::String, STextureMapInfo >::const_iterator it = lMats.begin();
124//      while (it != lMats.end())
125//      {
126//              Ogre::String ident = it->first;
127//              STextureMapInfo texInfo = it->second;
128//
129//              Ogre::TextureUnitState* pTexUnit;
130//
131//              Ogre::String baseFile;
132//              Ogre::String basePath;
133//              Ogre::StringUtil::splitFilename( texInfo.m_sFilename, baseFile, basePath);
134//
135//              pTexUnit = pass->createTextureUnitState( baseFile, texInfo.m_iCoordSet-1 );
136//              pTexUnit->setTextureNameAlias( texInfo.m_sMapType );
137//
138//              if(texInfo.m_fOffset[0] != 0 || texInfo.m_fOffset[1] != 0)
139//                      pTexUnit->setTextureScroll(texInfo.m_fOffset[0], texInfo.m_fOffset[1]);
140//              if(texInfo.m_fAngle)
141//                      pTexUnit->setTextureRotate(Ogre::Radian(-texInfo.m_fAngle));
142//              if(texInfo.m_fScale[0] != 1 || texInfo.m_fScale[1] != 1)
143//                      pTexUnit->setTextureScale(1/texInfo.m_fScale[0], 1/texInfo.m_fScale[1]);
144//
145//              pTexUnit->setTextureAddressingMode(texInfo.m_AdressingMode);
146//
147////            if(texInfo.m_sMapType.compare( "self_illumination" ) == 0)
148////                    pTexUnit->setColourOperation(Ogre::LBO_ADD);
149////            else if(texInfo.m_sMapType.compare( "reflection" ) == 0)
150////                    pTexUnit->setEnvironmentMap( true, Ogre::Env)
151//              //else
152//              //      pTexUnit->setColourOperationEx(Ogre::LBX_MODULATE_X2); 
153//
154//
155//              pass->setAlphaRejectFunction( Ogre::CMPF_ALWAYS_PASS ); //Default
156//
157//              if(texInfo.m_bAlpha)
158//              {
159//                      pass->setAlphaRejectFunction(Ogre::CMPF_GREATER);
160//                      pass->setAlphaRejectValue(128);
161//              }
162//
163//              it++;
164//      }
165}
166
167void COgreMaterialCompiler::CreateTextureUnits( Ogre::Pass* pass, STextureMapInfo texInfo  )
168{
169        Ogre::TextureUnitState* pTexUnit;
170
171        Ogre::String baseFile;
172        Ogre::String basePath;
173        Ogre::StringUtil::splitFilename( texInfo.m_sFilename, baseFile, basePath);
174
175        pTexUnit = pass->createTextureUnitState( baseFile, texInfo.m_iCoordSet-1 );
176        pTexUnit->setTextureNameAlias( texInfo.m_sMapType );
177
178        if(texInfo.m_fOffset[0] != 0 || texInfo.m_fOffset[1] != 0)
179                pTexUnit->setTextureScroll(texInfo.m_fOffset[0], texInfo.m_fOffset[1]);
180        if(texInfo.m_fAngle)
181                pTexUnit->setTextureRotate(Ogre::Radian(-texInfo.m_fAngle));
182        if(texInfo.m_fScale[0] != 1 || texInfo.m_fScale[1] != 1)
183                pTexUnit->setTextureScale(1/texInfo.m_fScale[0], 1/texInfo.m_fScale[1]);
184
185        pTexUnit->setTextureAddressingMode(texInfo.m_AdressingMode);
186
187        //      const std::map< Ogre::String, STextureMapInfo >& lMats = m_pIMaterial->GetTextureMaps();
188        //      std::map< Ogre::String, STextureMapInfo >::const_iterator it = lMats.begin();
189        //      while (it != lMats.end())
190        //      {
191        //              Ogre::String ident = it->first;
192        //              STextureMapInfo texInfo = it->second;
193        //
194        //              Ogre::TextureUnitState* pTexUnit;
195        //
196        //              Ogre::String baseFile;
197        //              Ogre::String basePath;
198        //              Ogre::StringUtil::splitFilename( texInfo.m_sFilename, baseFile, basePath);
199        //
200        //              pTexUnit = pass->createTextureUnitState( baseFile, texInfo.m_iCoordSet-1 );
201        //              pTexUnit->setTextureNameAlias( texInfo.m_sMapType );
202        //
203        //              if(texInfo.m_fOffset[0] != 0 || texInfo.m_fOffset[1] != 0)
204        //                      pTexUnit->setTextureScroll(texInfo.m_fOffset[0], texInfo.m_fOffset[1]);
205        //              if(texInfo.m_fAngle)
206        //                      pTexUnit->setTextureRotate(Ogre::Radian(-texInfo.m_fAngle));
207        //              if(texInfo.m_fScale[0] != 1 || texInfo.m_fScale[1] != 1)
208        //                      pTexUnit->setTextureScale(1/texInfo.m_fScale[0], 1/texInfo.m_fScale[1]);
209        //
210        //              pTexUnit->setTextureAddressingMode(texInfo.m_AdressingMode);
211        //
212        ////            if(texInfo.m_sMapType.compare( "self_illumination" ) == 0)
213        ////                    pTexUnit->setColourOperation(Ogre::LBO_ADD);
214        ////            else if(texInfo.m_sMapType.compare( "reflection" ) == 0)
215        ////                    pTexUnit->setEnvironmentMap( true, Ogre::Env)
216        //              //else
217        //              //      pTexUnit->setColourOperationEx(Ogre::LBX_MODULATE_X2); 
218        //
219        //
220        //              pass->setAlphaRejectFunction( Ogre::CMPF_ALWAYS_PASS ); //Default
221        //
222        //              if(texInfo.m_bAlpha)
223        //              {
224        //                      pass->setAlphaRejectFunction(Ogre::CMPF_GREATER);
225        //                      pass->setAlphaRejectValue(128);
226        //              }
227        //
228        //              it++;
229        //      }
230}
231
232void COgreMaterialCompiler::CreatePureBlinn( Ogre::Pass* pass )
233{
234        pass->setVertexProgram("BlinnVP");
235        pass->setFragmentProgram( "Blinn_Pure_FP" );
236
237        Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
238
239        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
240        float specHack = m_pIMaterial->GetSpecularLevel() > 9.98 ? 9.98 : m_pIMaterial->GetSpecularLevel() ;
241        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
242        float glossHack = m_pIMaterial->GetGlossiness() == 1 ? 0.9999 : m_pIMaterial->GetGlossiness() ;
243        glossHack = glossHack > 0.01 ? glossHack * 100 : 0.0 ;
244
245        params->setNamedConstant("ambientColor", m_pIMaterial->GetAmbientColor());
246        params->setNamedConstant("diffuseColor", m_pIMaterial->GetDiffuseColor());
247        params->setNamedConstant("specularColor", m_pIMaterial->GetSpecularColor());
248        params->setNamedConstant("specularLevel", specHack);
249        params->setNamedConstant("glossLevel", glossHack);
250        params->setNamedConstant("opacity", m_pIMaterial->GetOpacity());
251
252        pass->setFragmentProgramParameters(params);
253}
254
255void COgreMaterialCompiler::CreateDiffuse( Ogre::Pass* pass )
256{
257        pass->setVertexProgram("BlinnVP");
258        pass->setFragmentProgram( "Blinn_DiffuseMap_FP" );
259
260        Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
261
262        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
263        float specHack = m_pIMaterial->GetSpecularLevel() > 9.98 ? 9.98 : m_pIMaterial->GetSpecularLevel() ;
264        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
265        float glossHack = m_pIMaterial->GetGlossiness() == 1 ? 0.9999 : m_pIMaterial->GetGlossiness() ;
266        glossHack = glossHack > 0.01 ? glossHack * 100 : 0.0 ;
267
268        params->setNamedConstant("ambientColor", m_pIMaterial->GetAmbientColor());
269        params->setNamedConstant("diffuseColor", m_pIMaterial->GetDiffuseColor());
270        params->setNamedConstant("specularColor", m_pIMaterial->GetSpecularColor());
271        params->setNamedConstant("specularLevel", specHack);
272        params->setNamedConstant("glossLevel", glossHack);
273        params->setNamedConstant("opacity", m_pIMaterial->GetOpacity());
274
275        STextureMapInfo texInfo = m_pIMaterial->GetTextureMapInfoFromName("diffuse");
276        if ( !texInfo.isNull())
277                params->setNamedConstant("amount", texInfo.m_fAmount);
278
279        CreateTextureUnits(pass, texInfo);
280
281        pass->setFragmentProgramParameters(params);
282}
283
284void COgreMaterialCompiler::CreateSpecularColor( Ogre::Pass* pass )
285{
286        pass->setVertexProgram("BlinnVP");
287        pass->setFragmentProgram( "Blinn_SpecularColor_FP" );
288
289        Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
290
291        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
292        float specHack = m_pIMaterial->GetSpecularLevel() > 9.98 ? 9.98 : m_pIMaterial->GetSpecularLevel() ;
293        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
294        float glossHack = m_pIMaterial->GetGlossiness() == 1 ? 0.9999 : m_pIMaterial->GetGlossiness() ;
295        glossHack = glossHack > 0.01 ? glossHack * 100 : 0.0 ;
296
297        params->setNamedConstant("ambientColor", m_pIMaterial->GetAmbientColor());
298        params->setNamedConstant("diffuseColor", m_pIMaterial->GetDiffuseColor());
299        params->setNamedConstant("specularColor", m_pIMaterial->GetSpecularColor());
300        params->setNamedConstant("specularLevel", specHack);
301        params->setNamedConstant("glossLevel", glossHack);
302        params->setNamedConstant("opacity", m_pIMaterial->GetOpacity());
303
304        STextureMapInfo texInfo = m_pIMaterial->GetTextureMapInfoFromName("specular_color");
305        if ( !texInfo.isNull())
306                params->setNamedConstant("amount", texInfo.m_fAmount);
307
308        CreateTextureUnits(pass, texInfo);
309
310        pass->setFragmentProgramParameters(params);
311}
312
313void COgreMaterialCompiler::CreateSpecularLevel( Ogre::Pass* pass )
314{
315        pass->setVertexProgram("BlinnVP");
316        pass->setFragmentProgram( "Blinn_SpecularLevel_FP" );
317
318        Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
319
320        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
321        float specHack = m_pIMaterial->GetSpecularLevel() > 9.98 ? 9.98 : m_pIMaterial->GetSpecularLevel() ;
322        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
323        float glossHack = m_pIMaterial->GetGlossiness() == 1 ? 0.9999 : m_pIMaterial->GetGlossiness() ;
324        glossHack = glossHack > 0.01 ? glossHack * 100 : 0.0 ;
325
326        params->setNamedConstant("ambientColor", m_pIMaterial->GetAmbientColor());
327        params->setNamedConstant("diffuseColor", m_pIMaterial->GetDiffuseColor());
328        params->setNamedConstant("specularColor", m_pIMaterial->GetSpecularColor());
329        params->setNamedConstant("specularLevel", specHack);
330        params->setNamedConstant("glossLevel", glossHack);
331        params->setNamedConstant("opacity", m_pIMaterial->GetOpacity());
332
333        STextureMapInfo texInfo = m_pIMaterial->GetTextureMapInfoFromName("specular_level");
334        if ( !texInfo.isNull())
335                params->setNamedConstant("amount", texInfo.m_fAmount);
336
337        CreateTextureUnits(pass, texInfo);
338
339        pass->setFragmentProgramParameters(params);
340}
341
342void COgreMaterialCompiler::CreateSelfIllumination( Ogre::Pass* pass )
343{
344        pass->setVertexProgram("Blinn_4UV_VP");
345        pass->setFragmentProgram( "Blinn_SelfIllumination_FP" );
346
347        Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
348
349        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
350        float specHack = m_pIMaterial->GetSpecularLevel() > 9.98 ? 9.98 : m_pIMaterial->GetSpecularLevel() ;
351        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
352        float glossHack = m_pIMaterial->GetGlossiness() == 1 ? 0.9999 : m_pIMaterial->GetGlossiness() ;
353        glossHack = glossHack > 0.01 ? glossHack * 100 : 0.0 ;
354
355        params->setNamedConstant("ambientColor", m_pIMaterial->GetAmbientColor());
356        params->setNamedConstant("diffuseColor", m_pIMaterial->GetDiffuseColor());
357        params->setNamedConstant("specularColor", m_pIMaterial->GetSpecularColor());
358        params->setNamedConstant("specularLevel", specHack);
359        params->setNamedConstant("glossLevel", glossHack);
360        params->setNamedConstant("opacity", m_pIMaterial->GetOpacity());
361
362        STextureMapInfo texInfo = m_pIMaterial->GetTextureMapInfoFromName("self_illumination");
363        if ( !texInfo.isNull())
364        {
365                params->setNamedConstant("amount", texInfo.m_fAmount);
366                params->setNamedConstant("uvIndex", (float)texInfo.m_iCoordSet-1);
367        }
368
369        CreateTextureUnits(pass, texInfo);
370
371        pass->setFragmentProgramParameters(params);
372}
373
374void COgreMaterialCompiler::CreateDiffuseAndOpacity( Ogre::Pass* pass )
375{
376        pass->setVertexProgram("BlinnVP");
377        pass->setFragmentProgram( "Blinn_DiffuseAndOpacityMap_FP" );
378
379        pass->setSceneBlending( Ogre::SBT_TRANSPARENT_ALPHA );
380        pass->setDepthWriteEnabled(false);
381
382        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
383        float specHack = m_pIMaterial->GetSpecularLevel() > 9.98 ? 9.98 : m_pIMaterial->GetSpecularLevel() ;
384        // HACK: For some reason we cannot set the SpecularLevel if it is its max at 9.99, so we clamp it to 9.98
385        float glossHack = m_pIMaterial->GetGlossiness() == 1 ? 0.9999 : m_pIMaterial->GetGlossiness() ;
386        glossHack = glossHack > 0.01 ? glossHack * 100 : 0.0 ;
387
388        Ogre::GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
389        params->setNamedConstant("ambientColor", m_pIMaterial->GetAmbientColor());
390        params->setNamedConstant("diffuseColor", m_pIMaterial->GetDiffuseColor());
391        params->setNamedConstant("specularColor", m_pIMaterial->GetSpecularColor());
392        params->setNamedConstant("specularLevel", specHack);
393        params->setNamedConstant("glossLevel", glossHack);
394
395        STextureMapInfo texInfo = m_pIMaterial->GetTextureMapInfoFromName("diffuse");
396        if ( !texInfo.isNull())
397                params->setNamedConstant("amount", texInfo.m_fAmount);
398
399        CreateTextureUnits(pass, texInfo);
400
401        texInfo = m_pIMaterial->GetTextureMapInfoFromName("opacity");
402        if ( !texInfo.isNull())
403                params->setNamedConstant("opacity", texInfo.m_fAmount);
404       
405        CreateTextureUnits(pass, texInfo);
406
407        pass->setFragmentProgramParameters(params);
408}
409
410void COgreMaterialCompiler::CopyTextureMaps( Ogre::String outPath )
411{
412        // copy texture files to target path
413        // optionally convert to .dds
414
415        const std::map< Ogre::String, STextureMapInfo >& lMats = m_pIMaterial->GetTextureMaps();
416        std::map< Ogre::String, STextureMapInfo >::const_iterator it = lMats.begin();
417        while (it != lMats.end())
418        {
419                Ogre::String ident = it->first;
420                STextureMapInfo texInfo = it->second;
421
422                Ogre::String baseFile;
423                Ogre::String basePath;
424                Ogre::StringUtil::splitFilename( texInfo.m_sFilename, baseFile, basePath);
425
426                //Ogre::String srcFile = texInfo.m_sFilename;
427
428                if( doFileCopy(texInfo.m_sFilename, outPath+baseFile) != 0 )
429                        LOGWARNING "Couldn´t copy texture map: %s", texInfo.m_sFilename.c_str());
430                it++;
431        }
432}
433
434void COgreMaterialCompiler::CopyShaderSources( Ogre::String outPath )
435{
436        // copy texture files to target path
437        // optionally convert to .dds
438
439        // ensure we are in the 3dMax dir
440        char szAppPath[MAX_PATH] = "";
441        ::GetModuleFileName(NULL,szAppPath,sizeof(szAppPath) - 1);
442
443        Ogre::String cwd(szAppPath);
444        Ogre::String fileName, filePath;
445        Ogre::StringUtil::splitFilename(cwd, fileName, filePath);
446
447        _chdir(filePath.c_str());
448       
449        doFileCopy("LexiExporter\\shaders\\Blinn.cg", outPath+Ogre::String("Blinn.cg") );
450        doFileCopy("LexiExporter\\shaders\\Shaders.program", outPath+Ogre::String("Shaders.program") );
451}
452
453bool COgreMaterialCompiler::WriteOgreMaterial( const Ogre::String& sFilename )
454{
455        Ogre::MaterialSerializer* pMatWriter = new Ogre::MaterialSerializer();
456        try
457        {
458                pMatWriter->exportMaterial( m_pOgreMaterial, sFilename );
459        }
460        catch (Ogre::Exception& e)
461        {
462                MessageBox( NULL, e.getFullDescription().c_str(), "ERROR", MB_ICONERROR);
463                return false;
464        }
465        delete pMatWriter;
466        return true;
467}
468
469Ogre::MaterialPtr COgreMaterialCompiler::GetOgreMaterial( void )
470{
471        return m_pOgreMaterial;
472}
473
474
475#define BUFF_SIZE 2048
476int COgreMaterialCompiler::doFileCopy(Ogre::String inFile, Ogre::String outFile)
477{
478        char buff[BUFF_SIZE];
479        int readBytes = 1;
480
481        ifstream inFileStream(inFile.c_str(), ios::in|ios::binary);
482        if(!inFileStream)
483        {
484                return -1;
485        }
486
487        ifstream tmpStream(outFile.c_str());
488        if(tmpStream)
489        {
490                return -1;
491        }
492        tmpStream.close();
493
494        ofstream outFileStream(outFile.c_str(), ios::out|ios::binary);
495        if(!outFileStream)
496        {
497                return -1;
498        }
499
500        while(readBytes != 0)
501        {
502                inFileStream.read((char*)buff, BUFF_SIZE);
503                readBytes = inFileStream.gcount();
504                outFileStream.write((char*)buff, readBytes);
505        }
506        return 0;
507}
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