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Report errors on TileDetails callback failures

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This callback can do out of memory and other failures, so catch
those and report them.
This commit is contained in:
James Turner 2021-07-27 14:22:50 +01:00
parent 2478bee97f
commit 1d59135652
1 changed files with 47 additions and 31 deletions
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74
simgear/scene/tgdb/SGTileDetailsCallback.hxx
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@ -36,6 +36,7 @@
#include <simgear/scene/util/SGReaderWriterOptions.hxx> #include <simgear/scene/util/SGReaderWriterOptions.hxx>
#include <simgear/scene/util/OptionsReadFileCallback.hxx> #include <simgear/scene/util/OptionsReadFileCallback.hxx>
#include <simgear/scene/util/SGNodeMasks.hxx> #include <simgear/scene/util/SGNodeMasks.hxx>
#include <simgear/debug/ErrorReportingCallback.hxx>
#include "SGNodeTriangles.hxx" #include "SGNodeTriangles.hxx"
#include "GroundLightManager.hxx" #include "GroundLightManager.hxx"
@ -53,6 +54,8 @@ typedef std::list<SGDirectionalLightBin> SGDirectionalLightListBin;
using namespace simgear; using namespace simgear;
using ReadResult = osgDB::ReaderWriter::ReadResult;
// QuadTreeBuilder is used by Random Objects Generator // QuadTreeBuilder is used by Random Objects Generator
typedef std::pair<osg::Node*, int> ModelLOD; typedef std::pair<osg::Node*, int> ModelLOD;
struct MakeQuadLeaf { struct MakeQuadLeaf {
@ -92,42 +95,55 @@ public:
SG_LOG( SG_TERRAIN, SG_DEBUG, "SGTileDetailsCallback::~SGTileDetailsCallback() num cbs left " << num_tdcb ); SG_LOG( SG_TERRAIN, SG_DEBUG, "SGTileDetailsCallback::~SGTileDetailsCallback() num cbs left " << num_tdcb );
} }
virtual osgDB::ReaderWriter::ReadResult readNode( ReadResult readNode(const std::string&, const osgDB::Options*) override
const std::string&, const osgDB::Options*)
{ {
SGMaterialLibPtr matlib; osg::ref_ptr<osg::Group> group;
osg::ref_ptr<SGMaterialCache> matcache; simgear::ErrorReportContext ec{"btg", _path};
osg::ref_ptr<osg::Group> group = new osg::Group; try {
group->setDataVariance(osg::Object::STATIC); group = new osg::Group;
SGMaterialLibPtr matlib;
osg::ref_ptr<SGMaterialCache> matcache;
// generate textured triangle list group->setDataVariance(osg::Object::STATIC);
std::vector<SGTriangleInfo> matTris;
GetNodeTriangles nodeTris(_gbs_center, &matTris);
_rootNode->accept( nodeTris );
// build matcache // generate textured triangle list
matlib = _options->getMaterialLib(); std::vector<SGTriangleInfo> matTris;
if (matlib) { GetNodeTriangles nodeTris(_gbs_center, &matTris);
SGGeod geodPos = SGGeod::fromCart(_gbs_center); _rootNode->accept( nodeTris );
matcache = matlib->generateMatCache(geodPos, _options);
}
#if 0 // build matcache
// TEST : See if we can regenerate landclass shapes from node matlib = _options->getMaterialLib();
for ( unsigned int i=0; i<matTris.size(); i++ ) { if (matlib) {
matTris[i].dumpBorder(_gbs_center); SGGeod geodPos = SGGeod::fromCart(_gbs_center);
} matcache = matlib->generateMatCache(geodPos, _options);
#endif }
osg::LOD* lightLOD = generateLightingTileObjects(matTris, matcache); #if 0
if (lightLOD) { // TEST : See if we can regenerate landclass shapes from node
group->addChild(lightLOD); for ( unsigned int i=0; i<matTris.size(); i++ ) {
} matTris[i].dumpBorder(_gbs_center);
}
#endif
osg::LOD* objectLOD = generateRandomTileObjects(matTris, matcache); osg::LOD* lightLOD = generateLightingTileObjects(matTris, matcache);
if (objectLOD) { if (lightLOD) {
group->addChild(objectLOD); group->addChild(lightLOD);
}
osg::LOD* objectLOD = generateRandomTileObjects(matTris, matcache);
if (objectLOD) {
group->addChild(objectLOD);
}
} catch (sg_exception& sge) {
simgear::reportFailure(simgear::LoadFailure::BadData, simgear::ErrorCode::BTGLoad,
"Failed to load BTG file:" + sge.getFormattedMessage(),
sge.getLocation());
return ReadResult::ERROR_IN_READING_FILE;
} catch (std::bad_alloc &e) {
simgear::reportFailure(simgear::LoadFailure::OutOfMemory, simgear::ErrorCode::BTGLoad,
"Out of memory loading tile details", sg_location{_path});
return ReadResult::INSUFFICIENT_MEMORY_TO_LOAD;
} }
return group.release(); return group.release();