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-rw-r--r--libs/assimp/code/AssetLib/OFF/OFFLoader.cpp334
-rw-r--r--libs/assimp/code/AssetLib/OFF/OFFLoader.h86
2 files changed, 420 insertions, 0 deletions
diff --git a/libs/assimp/code/AssetLib/OFF/OFFLoader.cpp b/libs/assimp/code/AssetLib/OFF/OFFLoader.cpp
new file mode 100644
index 0000000..640e792
--- /dev/null
+++ b/libs/assimp/code/AssetLib/OFF/OFFLoader.cpp
@@ -0,0 +1,334 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, 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.
+---------------------------------------------------------------------------
+*/
+
+/** @file OFFLoader.cpp
+ * @brief Implementation of the OFF importer class
+ */
+
+
+#ifndef ASSIMP_BUILD_NO_OFF_IMPORTER
+
+// internal headers
+#include "OFFLoader.h"
+#include <assimp/ParsingUtils.h>
+#include <assimp/fast_atof.h>
+#include <memory>
+#include <assimp/IOSystem.hpp>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/importerdesc.h>
+
+using namespace Assimp;
+
+static const aiImporterDesc desc = {
+ "OFF Importer",
+ "",
+ "",
+ "",
+ aiImporterFlags_SupportBinaryFlavour,
+ 0,
+ 0,
+ 0,
+ 0,
+ "off"
+};
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+OFFImporter::OFFImporter()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+OFFImporter::~OFFImporter()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the class can handle the format of the given file.
+bool OFFImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool /*checkSig*/) const
+{
+ static const char* tokens[] = { "off" };
+ return SearchFileHeaderForToken(pIOHandler,pFile,tokens,AI_COUNT_OF(tokens),3);
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiImporterDesc* OFFImporter::GetInfo () const
+{
+ return &desc;
+}
+
+
+// skip blank space, lines and comments
+static void NextToken(const char **car, const char* end) {
+ SkipSpacesAndLineEnd(car);
+ while (*car < end && (**car == '#' || **car == '\n' || **car == '\r')) {
+ SkipLine(car);
+ SkipSpacesAndLineEnd(car);
+ }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Imports the given file into the given scene structure.
+void OFFImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) {
+ std::unique_ptr<IOStream> file( pIOHandler->Open( pFile, "rb"));
+
+ // Check whether we can read from the file
+ if( file.get() == nullptr) {
+ throw DeadlyImportError( "Failed to open OFF file ", pFile, ".");
+ }
+
+ // allocate storage and copy the contents of the file to a memory buffer
+ std::vector<char> mBuffer2;
+ TextFileToBuffer(file.get(),mBuffer2);
+ const char* buffer = &mBuffer2[0];
+
+ // Proper OFF header parser. We only implement normal loading for now.
+ bool hasTexCoord = false, hasNormals = false, hasColors = false;
+ bool hasHomogenous = false, hasDimension = false;
+ unsigned int dimensions = 3;
+ const char* car = buffer;
+ const char* end = buffer + mBuffer2.size();
+ NextToken(&car, end);
+
+ if (car < end - 2 && car[0] == 'S' && car[1] == 'T') {
+ hasTexCoord = true; car += 2;
+ }
+ if (car < end - 1 && car[0] == 'C') {
+ hasColors = true; car++;
+ }
+ if (car < end- 1 && car[0] == 'N') {
+ hasNormals = true; car++;
+ }
+ if (car < end - 1 && car[0] == '4') {
+ hasHomogenous = true; car++;
+ }
+ if (car < end - 1 && car[0] == 'n') {
+ hasDimension = true; car++;
+ }
+ if (car < end - 3 && car[0] == 'O' && car[1] == 'F' && car[2] == 'F') {
+ car += 3;
+ NextToken(&car, end);
+ } else {
+ // in case there is no OFF header (which is allowed by the
+ // specification...), then we might have unintentionally read an
+ // additional dimension from the primitive count fields
+ dimensions = 3;
+ hasHomogenous = false;
+ NextToken(&car, end);
+
+ // at this point the next token should be an integer number
+ if (car >= end - 1 || *car < '0' || *car > '9') {
+ throw DeadlyImportError("OFF: Header is invalid");
+ }
+ }
+ if (hasDimension) {
+ dimensions = strtoul10(car, &car);
+ NextToken(&car, end);
+ }
+ if (dimensions > 3) {
+ throw DeadlyImportError
+ ("OFF: Number of vertex coordinates higher than 3 unsupported");
+ }
+
+ NextToken(&car, end);
+ const unsigned int numVertices = strtoul10(car, &car);
+ NextToken(&car, end);
+ const unsigned int numFaces = strtoul10(car, &car);
+ NextToken(&car, end);
+ strtoul10(car, &car); // skip edge count
+ NextToken(&car, end);
+
+ if (!numVertices) {
+ throw DeadlyImportError("OFF: There are no valid vertices");
+ }
+ if (!numFaces) {
+ throw DeadlyImportError("OFF: There are no valid faces");
+ }
+
+ pScene->mNumMeshes = 1;
+ pScene->mMeshes = new aiMesh*[ pScene->mNumMeshes ];
+
+ aiMesh* mesh = new aiMesh();
+ pScene->mMeshes[0] = mesh;
+
+ mesh->mNumFaces = numFaces;
+ aiFace* faces = new aiFace[mesh->mNumFaces];
+ mesh->mFaces = faces;
+
+ mesh->mNumVertices = numVertices;
+ mesh->mVertices = new aiVector3D[numVertices];
+ mesh->mNormals = hasNormals ? new aiVector3D[numVertices] : nullptr;
+ mesh->mColors[0] = hasColors ? new aiColor4D[numVertices] : nullptr;
+
+ if (hasTexCoord) {
+ mesh->mNumUVComponents[0] = 2;
+ mesh->mTextureCoords[0] = new aiVector3D[numVertices];
+ }
+ char line[4096];
+ buffer = car;
+ const char *sz = car;
+
+ // now read all vertex lines
+ for (unsigned int i = 0; i < numVertices; ++i) {
+ if(!GetNextLine(buffer, line)) {
+ ASSIMP_LOG_ERROR("OFF: The number of verts in the header is incorrect");
+ break;
+ }
+ aiVector3D& v = mesh->mVertices[i];
+ sz = line;
+
+ // helper array to write a for loop over possible dimension values
+ ai_real* vec[3] = {&v.x, &v.y, &v.z};
+
+ // stop at dimensions: this allows loading 1D or 2D coordinate vertices
+ for (unsigned int dim = 0; dim < dimensions; ++dim ) {
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz, *vec[dim]);
+ }
+
+ // if has homogeneous coordinate, divide others by this one
+ if (hasHomogenous) {
+ SkipSpaces(&sz);
+ ai_real w = 1.;
+ sz = fast_atoreal_move<ai_real>(sz, w);
+ for (unsigned int dim = 0; dim < dimensions; ++dim ) {
+ *(vec[dim]) /= w;
+ }
+ }
+
+ // read optional normals
+ if (hasNormals) {
+ aiVector3D& n = mesh->mNormals[i];
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz,(ai_real&)n.x);
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz,(ai_real&)n.y);
+ SkipSpaces(&sz);
+ fast_atoreal_move<ai_real>(sz,(ai_real&)n.z);
+ }
+
+ // reading colors is a pain because the specification says it can be
+ // integers or floats, and any number of them between 1 and 4 included,
+ // until the next comment or end of line
+ // in theory should be testing type !
+ if (hasColors) {
+ aiColor4D& c = mesh->mColors[0][i];
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz,(ai_real&)c.r);
+ if (*sz != '#' && *sz != '\n' && *sz != '\r') {
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz,(ai_real&)c.g);
+ } else {
+ c.g = 0.;
+ }
+ if (*sz != '#' && *sz != '\n' && *sz != '\r') {
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz,(ai_real&)c.b);
+ } else {
+ c.b = 0.;
+ }
+ if (*sz != '#' && *sz != '\n' && *sz != '\r') {
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz,(ai_real&)c.a);
+ } else {
+ c.a = 1.;
+ }
+ }
+ if (hasTexCoord) {
+ aiVector3D& t = mesh->mTextureCoords[0][i];
+ SkipSpaces(&sz);
+ sz = fast_atoreal_move<ai_real>(sz,(ai_real&)t.x);
+ SkipSpaces(&sz);
+ fast_atoreal_move<ai_real>(sz,(ai_real&)t.y);
+ }
+ }
+
+ // load faces with their indices
+ faces = mesh->mFaces;
+ 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;
+ }
+ unsigned int idx;
+ sz = line; SkipSpaces(&sz);
+ idx = strtoul10(sz,&sz);
+ if(!idx || idx > 9) {
+ ASSIMP_LOG_ERROR("OFF: Faces with zero indices aren't allowed");
+ --mesh->mNumFaces;
+ continue;
+ }
+ faces->mNumIndices = idx;
+ faces->mIndices = new unsigned int[faces->mNumIndices];
+ for (unsigned int m = 0; m < faces->mNumIndices;++m) {
+ SkipSpaces(&sz);
+ idx = strtoul10(sz,&sz);
+ if (idx >= numVertices) {
+ ASSIMP_LOG_ERROR("OFF: Vertex index is out of range");
+ idx = numVertices - 1;
+ }
+ faces->mIndices[m] = idx;
+ }
+ ++i;
+ ++faces;
+ }
+
+ // generate the output node graph
+ pScene->mRootNode = new aiNode();
+ pScene->mRootNode->mName.Set("<OFFRoot>");
+ pScene->mRootNode->mNumMeshes = 1;
+ pScene->mRootNode->mMeshes = new unsigned int [pScene->mRootNode->mNumMeshes];
+ pScene->mRootNode->mMeshes[0] = 0;
+
+ // generate a default material
+ pScene->mNumMaterials = 1;
+ pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
+ aiMaterial* pcMat = new aiMaterial();
+
+ aiColor4D clr( ai_real( 0.6 ), ai_real( 0.6 ), ai_real( 0.6 ), ai_real( 1.0 ) );
+ pcMat->AddProperty(&clr,1,AI_MATKEY_COLOR_DIFFUSE);
+ pScene->mMaterials[0] = pcMat;
+
+ const int twosided = 1;
+ pcMat->AddProperty(&twosided, 1, AI_MATKEY_TWOSIDED);
+}
+
+#endif // !! ASSIMP_BUILD_NO_OFF_IMPORTER
diff --git a/libs/assimp/code/AssetLib/OFF/OFFLoader.h b/libs/assimp/code/AssetLib/OFF/OFFLoader.h
new file mode 100644
index 0000000..04bb7f4
--- /dev/null
+++ b/libs/assimp/code/AssetLib/OFF/OFFLoader.h
@@ -0,0 +1,86 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, 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.
+
+----------------------------------------------------------------------
+*/
+
+/** @file OFFLoader.h
+ * @brief Declaration of the OFF importer class.
+ */
+#pragma once
+#ifndef AI_OFFLOADER_H_INCLUDED
+#define AI_OFFLOADER_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include <assimp/types.h>
+#include <vector>
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** Importer class for the Object File Format (.off)
+*/
+class OFFImporter : public BaseImporter {
+public:
+ OFFImporter();
+ ~OFFImporter() override;
+
+ // -------------------------------------------------------------------
+ /** Returns whether the class can handle the format of the given file.
+ * See BaseImporter::CanRead() for details. */
+ bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
+ bool checkSig) const override;
+
+protected:
+ // -------------------------------------------------------------------
+ /** Return importer meta information.
+ * See #BaseImporter::GetInfo for the details
+ */
+ const aiImporterDesc *GetInfo() const override;
+
+ // -------------------------------------------------------------------
+ /** Imports the given file into the given scene structure.
+ * See BaseImporter::InternReadFile() for details
+ */
+ void InternReadFile(const std::string &pFile, aiScene *pScene,
+ IOSystem *pIOHandler) override;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_3DSIMPORTER_H_IN
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