1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298
|
/*
---------------------------------------------------------------------------
Open Asset Import Library (ASSIMP)
---------------------------------------------------------------------------
Copyright (c) 2006-2010, ASSIMP Development Team
All rights reserved.
Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the following
conditions are met:
* Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
* Neither the name of the ASSIMP team, nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior
written permission of the ASSIMP Development Team.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------
*/
/** @file Exporter.cpp
Assimp export interface. While it's public interface bears many similarities
to the import interface (in fact, it is largely symmetric), the internal
implementations differs a lot. Exporters are considered stateless and are
simple callbacks which we maintain in a global list along with their
description strings.
Here we implement only the C++ interface (Assimp::Exporter).
*/
#include "AssimpPCH.h"
#ifndef ASSIMP_BUILD_NO_EXPORT
#include "DefaultIOSystem.h"
#include "BlobIOSystem.h"
#include "SceneCombiner.h"
#include "BaseProcess.h"
#include "Importer.h" // need this for GetPostProcessingStepInstanceList()
namespace Assimp {
// PostStepRegistry.cpp
void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out);
// ------------------------------------------------------------------------------------------------
// Exporter worker function prototypes. Should not be necessary to #ifndef them, it's just a prototype
void ExportSceneCollada(const char*,IOSystem*, const aiScene*);
void ExportSceneObj(const char*,IOSystem*, const aiScene*);
void ExportScene3DS(const char*, IOSystem*, const aiScene*) {}
/// Function pointer type of a Export worker function
typedef void (*fpExportFunc)(const char*,IOSystem*,const aiScene*);
// ------------------------------------------------------------------------------------------------
/// Internal description of an Assimp export format option
struct ExportFormatEntry
{
/// Public description structure to be returned by aiGetExportFormatDescription()
aiExportFormatDesc mDescription;
// Worker function to do the actual exporting
fpExportFunc mExportFunction;
// Postprocessing steps to be executed PRIOR to calling mExportFunction
unsigned int mEnforcePP;
// Constructor to fill all entries
ExportFormatEntry( const char* pId, const char* pDesc, const char* pExtension, fpExportFunc pFunction, unsigned int pEnforcePP = 0u)
{
mDescription.id = pId;
mDescription.description = pDesc;
mDescription.fileExtension = pExtension;
mExportFunction = pFunction;
mEnforcePP = pEnforcePP;
}
};
// ------------------------------------------------------------------------------------------------
// global array of all export formats which Assimp supports in its current build
ExportFormatEntry gExporters[] =
{
#ifndef ASSIMP_BUILD_NO_COLLADA_EXPORTER
ExportFormatEntry( "collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada),
#endif
#ifndef ASSIMP_BUILD_NO_OBJ_EXPORTER
ExportFormatEntry( "obj", "Wavefront OBJ format", "obj", &ExportSceneObj),
#endif
#ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
ExportFormatEntry( "3ds", "Autodesk 3DS (legacy format)", "3ds" , &ExportScene3DS),
#endif
};
class ExporterPimpl {
public:
ExporterPimpl()
: blob()
, mIOSystem(new Assimp::DefaultIOSystem())
, mIsDefaultIOHandler(true)
{
GetPostProcessingStepInstanceList(mPostProcessingSteps);
}
~ExporterPimpl()
{
delete blob;
// Delete all post-processing plug-ins
for( unsigned int a = 0; a < mPostProcessingSteps.size(); a++) {
delete mPostProcessingSteps[a];
}
}
public:
aiExportDataBlob* blob;
boost::shared_ptr< Assimp::IOSystem > mIOSystem;
bool mIsDefaultIOHandler;
/** Post processing steps we can apply at the imported data. */
std::vector< BaseProcess* > mPostProcessingSteps;
};
#define ASSIMP_NUM_EXPORTERS (sizeof(gExporters)/sizeof(gExporters[0]))
} // end of namespace Assimp
using namespace Assimp;
// ------------------------------------------------------------------------------------------------
Exporter :: Exporter()
: pimpl(new ExporterPimpl())
{
}
// ------------------------------------------------------------------------------------------------
Exporter :: ~Exporter()
{
delete pimpl;
}
// ------------------------------------------------------------------------------------------------
void Exporter :: SetIOHandler( IOSystem* pIOHandler)
{
pimpl->mIsDefaultIOHandler = !pIOHandler;
pimpl->mIOSystem.reset(pIOHandler);
}
// ------------------------------------------------------------------------------------------------
IOSystem* Exporter :: GetIOHandler() const
{
return pimpl->mIOSystem.get();
}
// ------------------------------------------------------------------------------------------------
bool Exporter :: IsDefaultIOHandler() const
{
return pimpl->mIsDefaultIOHandler;
}
// ------------------------------------------------------------------------------------------------
const aiExportDataBlob* Exporter :: ExportToBlob( const aiScene* pScene, const char* pFormatId, unsigned int pPreprocessing )
{
if (pimpl->blob) {
delete pimpl->blob;
pimpl->blob = NULL;
}
boost::shared_ptr<IOSystem> old = pimpl->mIOSystem;
BlobIOSystem* blobio = new BlobIOSystem();
pimpl->mIOSystem = boost::shared_ptr<IOSystem>( blobio );
if (AI_SUCCESS != Export(pScene,pFormatId,blobio->GetMagicFileName())) {
pimpl->mIOSystem = old;
return NULL;
}
pimpl->blob = blobio->GetBlobChain();
pimpl->mIOSystem = old;
return pimpl->blob;
}
// ------------------------------------------------------------------------------------------------
aiReturn Exporter :: Export( const aiScene* pScene, const char* pFormatId, const char* pPath, unsigned int pPreprocessing )
{
ASSIMP_BEGIN_EXCEPTION_REGION();
for (size_t i = 0; i < ASSIMP_NUM_EXPORTERS; ++i) {
if (!strcmp(gExporters[i].mDescription.id,pFormatId)) {
try {
// Always create a full copy of the scene. We might optimize this one day,
// but for now it is the most pragmatic way.
aiScene* scenecopy_tmp;
SceneCombiner::CopyScene(&scenecopy_tmp,pScene);
std::auto_ptr<aiScene> scenecopy(scenecopy_tmp);
const unsigned int pp = (gExporters[i].mEnforcePP | pPreprocessing);
if (pp) {
for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++) {
BaseProcess* const p = pimpl->mPostProcessingSteps[a];
if (p->IsActive(pp)) {
p->Execute(scenecopy.get());
}
}
}
gExporters[i].mExportFunction(pPath,pimpl->mIOSystem.get(),scenecopy.get());
}
catch (DeadlyExportError& err) {
// XXX what to do with the error message? Maybe introduce extra member to hold it, similar to Assimp.Importer
DefaultLogger::get()->error(err.what());
return AI_FAILURE;
}
return AI_SUCCESS;
}
}
ASSIMP_END_EXCEPTION_REGION(aiReturn);
return AI_FAILURE;
}
// ------------------------------------------------------------------------------------------------
const aiExportDataBlob* Exporter :: GetBlob() const
{
return pimpl->blob;
}
// ------------------------------------------------------------------------------------------------
const aiExportDataBlob* Exporter :: GetOrphanedBlob() const
{
const aiExportDataBlob* tmp = pimpl->blob;
pimpl->blob = NULL;
return tmp;
}
// ------------------------------------------------------------------------------------------------
size_t Exporter :: GetExportFormatCount() const
{
return ASSIMP_NUM_EXPORTERS;
}
// ------------------------------------------------------------------------------------------------
const aiExportFormatDesc* Exporter :: GetExportFormatDescription( size_t pIndex ) const
{
if (pIndex >= ASSIMP_NUM_EXPORTERS) {
return NULL;
}
return &gExporters[pIndex].mDescription;
}
#endif // !ASSIMP_BUILD_NO_EXPORT
|