WIP of assimp integration.

Engine/lib/assimp/code/Importer/StepFile/StepFileImporter.cpp

@@ -0,0 +1,114 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2018, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#ifndef ASSIMP_BUILD_NO_STEPFILE_IMPORTER
+
+#include "StepFileImporter.h"
+#include "../../Importer/IFC/STEPFileReader.h"
+#include <assimp/importerdesc.h>
+#include <assimp/DefaultIOSystem.h>
+
+namespace Assimp {
+namespace StepFile {
+
+using 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" || extension == "step" ) {
+        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;
+}
+
+static const std::string mode = "rb";
+static const std::string StepFileSchema = "CONFIG_CONTROL_DESIGN";
+
+void StepFileImporter::InternReadFile(const std::string &file, aiScene* pScene, IOSystem* pIOHandler) {
+    // Read file into memory
+    std::shared_ptr<IOStream> fileStream(pIOHandler->Open(file, mode));
+    if (!fileStream.get()) {
+        throw DeadlyImportError("Failed to open file " + file + ".");
+    }
+
+    std::unique_ptr<STEP::DB> db(STEP::ReadFileHeader(fileStream));
+    const STEP::HeaderInfo& head = static_cast<const STEP::DB&>(*db).GetHeader();
+    if (!head.fileSchema.size() || head.fileSchema != StepFileSchema) {
+        DeadlyImportError("Unrecognized file schema: " + head.fileSchema);
+    }
+}
+
+} // Namespace StepFile
+} // Namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_STEPFILE_IMPORTER
+

Engine/lib/assimp/code/Importer/StepFile/StepFileImporter.h

@@ -0,0 +1,69 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2018, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#pragma once
+
+#ifndef ASSIMP_BUILD_NO_STEPFILE_IMPORTER
+
+#include <assimp/BaseImporter.h>
+
+namespace Assimp {
+namespace StepFile {
+
+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:
+};
+
+} // Namespace StepFile
+} // Namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_STEPFILE_IMPORTER