Merge branch 'master' into 6091762766839808

This commit is contained in:
Kim Kulling
2023-06-25 20:08:45 +02:00
committed by GitHub
7 changed files with 47 additions and 118 deletions

View File

@@ -71,7 +71,7 @@ static const aiColor4D AI_DXF_DEFAULT_COLOR(aiColor4D(0.6f, 0.6f, 0.6f, 0.6f));
// color indices for DXF - 16 are supported, the table is
// taken directly from the DXF spec.
static aiColor4D g_aclrDxfIndexColors[] = {
aiColor4D (0.6f, 0.6f, 0.6f, 1.0f),
aiColor4D(0.6f, 0.6f, 0.6f, 1.0f),
aiColor4D (1.0f, 0.0f, 0.0f, 1.0f), // red
aiColor4D (0.0f, 1.0f, 0.0f, 1.0f), // green
aiColor4D (0.0f, 0.0f, 1.0f, 1.0f), // blue
@@ -88,6 +88,7 @@ static aiColor4D g_aclrDxfIndexColors[] = {
aiColor4D (1.0f, 1.0f, 1.0f, 1.0f), // white
aiColor4D (0.6f, 0.0f, 1.0f, 1.0f) // violet
};
#define AI_DXF_NUM_INDEX_COLORS (sizeof(g_aclrDxfIndexColors)/sizeof(g_aclrDxfIndexColors[0]))
#define AI_DXF_ENTITIES_MAGIC_BLOCK "$ASSIMP_ENTITIES_MAGIC"
@@ -109,14 +110,6 @@ static const aiImporterDesc desc = {
"dxf"
};
// ------------------------------------------------------------------------------------------------
// Constructor to be privately used by Importer
DXFImporter::DXFImporter() = default;
// ------------------------------------------------------------------------------------------------
// Destructor, private as well
DXFImporter::~DXFImporter() = default;
// ------------------------------------------------------------------------------------------------
// Returns whether the class can handle the format of the given file.
bool DXFImporter::CanRead( const std::string& filename, IOSystem* pIOHandler, bool /*checkSig*/ ) const {
@@ -229,7 +222,7 @@ void DXFImporter::ConvertMeshes(aiScene* pScene, DXF::FileData& output) {
ASSIMP_LOG_VERBOSE_DEBUG("DXF: Unexpanded polycount is ", icount, ", vertex count is ", vcount);
}
if (! output.blocks.size() ) {
if (output.blocks.empty()) {
throw DeadlyImportError("DXF: no data blocks loaded");
}
@@ -587,10 +580,11 @@ void DXFImporter::ParseInsertion(DXF::LineReader& reader, DXF::FileData& output)
}
}
#define DXF_POLYLINE_FLAG_CLOSED 0x1
#define DXF_POLYLINE_FLAG_3D_POLYLINE 0x8
#define DXF_POLYLINE_FLAG_3D_POLYMESH 0x10
#define DXF_POLYLINE_FLAG_POLYFACEMESH 0x40
static constexpr unsigned int DXF_POLYLINE_FLAG_CLOSED = 0x1;
// Currently unused
//static constexpr unsigned int DXF_POLYLINE_FLAG_3D_POLYLINE = 0x8;
//static constexpr unsigned int DXF_POLYLINE_FLAG_3D_POLYMESH = 0x10;
static constexpr unsigned int DXF_POLYLINE_FLAG_POLYFACEMESH = 0x40;
// ------------------------------------------------------------------------------------------------
void DXFImporter::ParsePolyLine(DXF::LineReader& reader, DXF::FileData& output) {
@@ -639,12 +633,6 @@ void DXFImporter::ParsePolyLine(DXF::LineReader& reader, DXF::FileData& output)
reader++;
}
//if (!(line.flags & DXF_POLYLINE_FLAG_POLYFACEMESH)) {
// DefaultLogger::get()->warn((Formatter::format("DXF: polyline not currently supported: "),line.flags));
// output.blocks.back().lines.pop_back();
// return;
//}
if (vguess && line.positions.size() != vguess) {
ASSIMP_LOG_WARN("DXF: unexpected vertex count in polymesh: ",
line.positions.size(),", expected ", vguess );
@@ -734,12 +722,18 @@ void DXFImporter::ParsePolyLineVertex(DXF::LineReader& reader, DXF::PolyLine& li
case 71:
case 72:
case 73:
case 74:
if (cnti == 4) {
ASSIMP_LOG_WARN("DXF: more than 4 indices per face not supported; ignoring");
break;
case 74: {
if (cnti == 4) {
ASSIMP_LOG_WARN("DXF: more than 4 indices per face not supported; ignoring");
break;
}
const int index = reader.ValueAsSignedInt();
if (index >= 0) {
indices[cnti++] = static_cast<unsigned int>(index);
} else {
ASSIMP_LOG_WARN("DXF: Skip invisible face.");
}
}
indices[cnti++] = reader.ValueAsUnsignedInt();
break;
// color
@@ -777,8 +771,7 @@ void DXFImporter::ParsePolyLineVertex(DXF::LineReader& reader, DXF::PolyLine& li
}
// ------------------------------------------------------------------------------------------------
void DXFImporter::Parse3DFace(DXF::LineReader& reader, DXF::FileData& output)
{
void DXFImporter::Parse3DFace(DXF::LineReader& reader, DXF::FileData& output) {
// (note) this is also used for for parsing line entities, so we
// must handle the vertex_count == 2 case as well.
@@ -795,8 +788,7 @@ void DXFImporter::Parse3DFace(DXF::LineReader& reader, DXF::FileData& output)
if (reader.GroupCode() == 0) {
break;
}
switch (reader.GroupCode())
{
switch (reader.GroupCode()) {
// 8 specifies the layer
case 8:

View File

@@ -68,8 +68,8 @@ namespace DXF {
*/
class DXFImporter : public BaseImporter {
public:
DXFImporter();
~DXFImporter() override;
DXFImporter() = default;
~DXFImporter() override = default;
// -------------------------------------------------------------------
/** Returns whether the class can handle the format of the given file.

View File

@@ -284,7 +284,7 @@ void OFFImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOS
for (unsigned int i = 0; i < numFaces; ) {
if(!GetNextLine(buffer,line)) {
ASSIMP_LOG_ERROR("OFF: The number of faces in the header is incorrect");
break;
throw DeadlyImportError("OFF: The number of faces in the header is incorrect");
}
unsigned int idx;
sz = line; SkipSpaces(&sz);

View File

@@ -456,8 +456,19 @@ void ObjFileParser::getFace(aiPrimitiveType type) {
iPos = 0;
} else {
//OBJ USES 1 Base ARRAYS!!!!
const char *token = &(*m_DataIt);
const int iVal = ::atoi(token);
int iVal;
auto end = m_DataIt;
// find either the buffer end or the '\0'
while (end < m_DataItEnd && *end != '\0')
++end;
// avoid temporary string allocation if there is a zero
if (end != m_DataItEnd) {
iVal = ::atoi(&(*m_DataIt));
} else {
// otherwise make a zero terminated copy, which is safe to pass to atoi
std::string number(&(*m_DataIt), m_DataItEnd - m_DataIt);
iVal = ::atoi(number.c_str());
}
// increment iStep position based off of the sign and # of digits
int tmp = iVal;

View File

@@ -82,6 +82,9 @@ void UpdateMeshReferences(aiNode *node, const std::vector<unsigned int> &meshMap
for (unsigned int a = 0; a < node->mNumMeshes; ++a) {
unsigned int ref = node->mMeshes[a];
if (ref >= meshMapping.size())
throw DeadlyImportError("Invalid mesh ref");
if (UINT_MAX != (ref = meshMapping[ref])) {
node->mMeshes[out++] = ref;
}
@@ -143,7 +146,13 @@ void FindInvalidDataProcess::Execute(aiScene *pScene) {
// we need to remove some meshes.
// therefore we'll also need to remove all references
// to them from the scenegraph
UpdateMeshReferences(pScene->mRootNode, meshMapping);
try {
UpdateMeshReferences(pScene->mRootNode, meshMapping);
} catch (const std::exception&) {
// fix the real number of meshes otherwise we'll get double free in the scene destructor
pScene->mNumMeshes = real;
throw;
}
pScene->mNumMeshes = real;
}