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Return false instead of crash (#5685) 

- Return false instead of crash
- closes https://github.com/assimp/assimp/issues/5684
pull/5687/head
Kim Kulling 2024-07-23 16:32:11 +02:00 committed by GitHub
parent 76de7cedf4
commit 104a70f845
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GPG Key ID: B5690EEEBB952194
1 changed files with 8 additions and 6 deletions
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12
code/PostProcessing/TriangulateProcess.cpp
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@ -192,13 +192,13 @@ bool TriangulateProcess::TriangulateMesh( aiMesh* pMesh) {
for( unsigned int a = 0; a < pMesh->mNumFaces; a++) { for( unsigned int a = 0; a < pMesh->mNumFaces; a++) {
const aiFace& face = pMesh->mFaces[a]; const aiFace& face = pMesh->mFaces[a];
if( face.mNumIndices != 3) { if( face.mNumIndices != 3) {
bNeed = true; bNeed = true;
} }
} }
if (!bNeed) if (!bNeed) {
return false; return false;
}
} }
else if (!(pMesh->mPrimitiveTypes & aiPrimitiveType_POLYGON)) { else if (!(pMesh->mPrimitiveTypes & aiPrimitiveType_POLYGON)) {
return false; return false;
@ -213,8 +213,7 @@ bool TriangulateProcess::TriangulateMesh( aiMesh* pMesh) {
get_normals = false; get_normals = false;
} }
if( face.mNumIndices <= 3) { if( face.mNumIndices <= 3) {
numOut++; ++numOut;
} else { } else {
numOut += face.mNumIndices-2; numOut += face.mNumIndices-2;
max_out = std::max(max_out,face.mNumIndices); max_out = std::max(max_out,face.mNumIndices);
@ -222,7 +221,10 @@ bool TriangulateProcess::TriangulateMesh( aiMesh* pMesh) {
} }
// Just another check whether aiMesh::mPrimitiveTypes is correct // Just another check whether aiMesh::mPrimitiveTypes is correct
ai_assert(numOut != pMesh->mNumFaces); if (numOut == pMesh->mNumFaces) {
ASSIMP_LOG_ERROR( "Invalidation detected in the number of indices: does not fit to the primitive type." );
return false;
}
aiVector3D *nor_out = nullptr; aiVector3D *nor_out = nullptr;