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Merge pull request #764 from rmitton/sib_import 

Validation fix for empty SIB scenes.
pull/800/head
Alexander Gessler 2016-02-18 11:58:26 +01:00
parent 88fee56cce 72b5ed50e9
commit 38d462f0b3
1 changed files with 15 additions and 15 deletions
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30
code/SIBImporter.cpp
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@ -40,7 +40,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @file SIBImporter.cpp
* @brief Implementation of the SIB importer class
* @brief Implementation of the SIB importer class.
*
* The Nevercenter Silo SIB format is undocumented.
* All details here have been reverse engineered from
@ -517,7 +517,7 @@ static void ReadShape(SIB* sib, StreamReaderLE* stream)
aiString name;
while (stream->GetRemainingSizeToLimit() >= sizeof(SIBChunk))
{
{
SIBChunk chunk = ReadChunk(stream);
unsigned oldLimit = stream->SetReadLimit(stream->GetCurrentPos() + chunk.Size);
@ -725,7 +725,7 @@ static void ReadLight(SIB* sib, StreamReaderLE* stream)
aiLight* light = new aiLight();
while (stream->GetRemainingSizeToLimit() >= sizeof(SIBChunk))
{
{
SIBChunk chunk = ReadChunk(stream);
unsigned oldLimit = stream->SetReadLimit(stream->GetCurrentPos() + chunk.Size);
@ -773,18 +773,18 @@ static void ReadInstance(SIB* sib, StreamReaderLE* stream)
uint32_t shapeIndex = 0;
while (stream->GetRemainingSizeToLimit() >= sizeof(SIBChunk))
{
{
SIBChunk chunk = ReadChunk(stream);
unsigned oldLimit = stream->SetReadLimit(stream->GetCurrentPos() + chunk.Size);
switch (chunk.Tag)
{
case TAG('D','I','N','F'): break; // display info, not needed
case TAG('P','I','N','F'): break; // ?
case TAG('D','I','N','F'): break; // display info, not needed
case TAG('P','I','N','F'): break; // ?
case TAG('A','X','I','S'): ReadAxis(inst.axis, stream); break;
case TAG('I','N','S','I'): shapeIndex = stream->GetU4(); break;
case TAG('S','M','T','X'): ReadScale(inst.axis, stream); break;
case TAG('S','N','A','M'): inst.name = ReadString(stream, chunk.Size/2); break;
case TAG('I','N','S','I'): shapeIndex = stream->GetU4(); break;
case TAG('S','M','T','X'): ReadScale(inst.axis, stream); break;
case TAG('S','N','A','M'): inst.name = ReadString(stream, chunk.Size/2); break;
default: UnknownChunk(stream, chunk); break;
}
@ -813,7 +813,7 @@ static void ReadScene(SIB* sib, StreamReaderLE* stream)
{
// Parse each chunk in turn.
while (stream->GetRemainingSizeToLimit() >= sizeof(SIBChunk))
{
{
SIBChunk chunk = ReadChunk(stream);
unsigned oldLimit = stream->SetReadLimit(stream->GetCurrentPos() + chunk.Size);
@ -865,9 +865,9 @@ void SIBImporter::InternReadFile(const std::string& pFile,
pScene->mNumMaterials = sib.mtls.size();
pScene->mNumMeshes = sib.meshes.size();
pScene->mNumLights = sib.lights.size();
pScene->mMaterials = new aiMaterial* [pScene->mNumMaterials];
pScene->mMeshes = new aiMesh* [pScene->mNumMeshes];
pScene->mLights = new aiLight* [pScene->mNumLights];
pScene->mMaterials = pScene->mNumMaterials ? new aiMaterial*[pScene->mNumMaterials] : NULL;
pScene->mMeshes = pScene->mNumMeshes ? new aiMesh*[pScene->mNumMeshes] : NULL;
pScene->mLights = pScene->mNumLights ? new aiLight*[pScene->mNumLights] : NULL;
if (pScene->mNumMaterials)
memcpy(pScene->mMaterials, &sib.mtls[0], sizeof(aiMaterial*) * pScene->mNumMaterials);
if (pScene->mNumMeshes)
@ -880,7 +880,7 @@ void SIBImporter::InternReadFile(const std::string& pFile,
aiNode *root = new aiNode();
root->mName.Set("<SIBRoot>");
root->mNumChildren = sib.objs.size() + sib.lights.size();
root->mChildren = new aiNode* [root->mNumChildren];
root->mChildren = root->mNumChildren ? new aiNode*[root->mNumChildren] : NULL;
pScene->mRootNode = root;
// Add nodes for each object.
@ -894,7 +894,7 @@ void SIBImporter::InternReadFile(const std::string& pFile,
node->mTransformation = obj.axis;
node->mNumMeshes = obj.meshCount;
node->mMeshes = new unsigned[node->mNumMeshes];
node->mMeshes = node->mNumMeshes ? new unsigned[node->mNumMeshes] : NULL;
for (unsigned i=0;i<node->mNumMeshes;i++)
node->mMeshes[i] = obj.meshIdx + i;