Step-Importer: introduce new files.

code/CMakeLists.txt

@@ -505,7 +505,6 @@ ADD_ASSIMP_IMPORTER( XGL
   XGLLoader.h
 )
 
-
 ADD_ASSIMP_IMPORTER( FBX
   FBXImporter.cpp
   FBXCompileConfig.h
@@ -722,9 +721,11 @@ ADD_ASSIMP_IMPORTER( MMD
 )
 
 SET( Step_SRCS
-  STEPFile.h
-  StepExporter.h
-  StepExporter.cpp
+    STEPFile.h
+    Importer/StepFile/StepFileImporter.h
+    Importer/StepFile/StepFileImporter.cpp
+    StepExporter.h
+    StepExporter.cpp
 )
 SOURCE_GROUP( Step FILES ${Step_SRCS})
 

code/EmbedTexturesProcess.cpp

@@ -119,9 +119,9 @@ bool EmbedTexturesProcess::addTexture(aiScene* pScene, std::string path) const {
         }
     }
 
-    aiTexel* imageContent = new aiTexel[1u + imageSize / sizeof(aiTexel)];
-    file.seekg(0, std::ios::beg);
-    file.read(reinterpret_cast<char*>(imageContent), imageSize);
+    aiTexel* imageContent = new aiTexel[1u + static_cast<size_t>( imageSize) / sizeof(aiTexel)];
+    file.seekg( 0, std::ios::beg );
+    file.read( reinterpret_cast<char*>(imageContent), imageSize );
 
     // Enlarging the textures table
     auto textureId = pScene->mNumTextures++;

code/Importer/StepFile/StepFileImporter.cpp

@@ -0,0 +1,48 @@
+#include "StepFileImporter.h"
+
+namespace Assimp {
+namespace STEP {
+
+static const aiImporterDesc desc = { "StepFile Importer",
+                                "",
+                                "",
+                                "",
+                                0,
+                                0,
+                                0,
+                                0,
+                                0,
+                                "stp" };
+
+StepFileImporter::StepFileImporter()
+: BaseImporter() {
+
+}
+
+StepFileImporter::~StepFileImporter() {
+
+}
+
+bool StepFileImporter::CanRead(const std::string& file, IOSystem* pIOHandler, bool checkSig) const {
+    const std::string &extension = GetExtension(file);
+    if ( extension == "stp" ) {
+        return true;
+    } else if ((!extension.length() || checkSig) && pIOHandler) {
+        const char* tokens[] = { "ISO-10303-21" };
+        const bool found(SearchFileHeaderForToken(pIOHandler, file, tokens, 1));
+        return found;
+    }
+
+    return false;
+}
+
+const aiImporterDesc *StepFileImporter::GetInfo() const {
+    return &desc;
+}
+
+void StepFileImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) {
+
+}
+
+}
+}

code/Importer/StepFile/StepFileImporter.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <assimp/BaseImporter.h>
+
+namespace Assimp {
+namespace STEP {
+
+class StepFileImporter : public BaseImporter {
+public:
+    StepFileImporter();
+    ~StepFileImporter();
+    bool CanRead(const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const override;
+    const aiImporterDesc* GetInfo() const override;
+
+protected:
+    void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler ) override;
+
+private:
+};
+
+}
+}

code/STEPFile.h

@@ -416,7 +416,6 @@ namespace STEP {
             }
 
         private:
-
             ConverterMap converters;
         };
     }