Add nascent USD importer
Steve M
parent
dc123acc63
commit
ed9dafc3c1
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@ -0,0 +1,148 @@
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/*
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---------------------------------------------------------------------------
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Open Asset Import Library (assimp)
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---------------------------------------------------------------------------
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Copyright (c) 2006-2024, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the following
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conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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---------------------------------------------------------------------------
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*/
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/** @file USDLoader.cpp
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* @brief Implementation of the USD importer class
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*/
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#ifndef ASSIMP_BUILD_NO_USD_IMPORTER
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#include <memory>
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// internal headers
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#include <assimp/ai_assert.h>
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#include <assimp/anim.h>
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#include <assimp/DefaultIOSystem.h>
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#include <assimp/DefaultLogger.hpp>
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#include <assimp/fast_atof.h>
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#include <assimp/Importer.hpp>
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#include <assimp/importerdesc.h>
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#include <assimp/IOStreamBuffer.h>
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#include <assimp/IOSystem.hpp>
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#include <assimp/scene.h>
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#include <assimp/StringUtils.h>
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#include <assimp/StreamReader.h>
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#include "USDLoader.h"
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static constexpr aiImporterDesc desc = {
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"USD Object Importer",
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"",
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"",
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"https://www.lightwave3d.com/lightwave_sdk/",
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aiImporterFlags_SupportTextFlavour | aiImporterFlags_SupportBinaryFlavour,
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0,
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0,
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0,
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0,
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"usda usdc"
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};
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namespace Assimp {
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using namespace std;
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// Constructor to be privately used by Importer
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//USDImporter::USDImporter() {
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//}
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// ------------------------------------------------------------------------------------------------
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bool USDImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
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// Based on token
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static const uint32_t usdcTokens[] = { AI_MAKE_MAGIC("PXR-USDC") };
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bool canRead = CheckMagicToken(pIOHandler, pFile, usdcTokens, AI_COUNT_OF(usdcTokens));
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if (canRead) {
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return canRead;
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}
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// Based on extension
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if (isUsda(pFile) || isUsdc(pFile)) {
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return true;
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}
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return true;
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}
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bool USDImporter::isUsda(const std::string &pFile) const {
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size_t pos = pFile.find_last_of('.');
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if (pos == string::npos) {
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return false;
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}
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string ext = pFile.substr(pos + 1);
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if (ext.size() != 4) {
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return false;
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}
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return (ext[0] == 'u' || ext[0] == 'U') && (ext[1] == 's' || ext[1] == 'S') && (ext[2] == 'd' || ext[2] == 'D') && (ext[3] == 'a' || ext[3] == 'A');
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}
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bool USDImporter::isUsdc(const std::string &pFile) const {
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size_t pos = pFile.find_last_of('.');
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if (pos == string::npos) {
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return false;
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}
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string ext = pFile.substr(pos + 1);
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if (ext.size() != 4) {
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return false;
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}
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return (ext[0] == 'u' || ext[0] == 'U') && (ext[1] == 's' || ext[1] == 'S') && (ext[2] == 'd' || ext[2] == 'D') && (ext[3] == 'c' || ext[3] == 'C');
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}
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const aiImporterDesc *USDImporter::GetInfo() const {
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return &desc;
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}
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void USDImporter::InternReadFile(
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const std::string &pFile,
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aiScene *pScene,
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IOSystem *pIOHandler) {
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DefaultLogger::create("AssimpLog.txt", Logger::VERBOSE);
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if (isUsdc(pFile)) {
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tinyusdz::USDLoadOptions options;
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tinyusdz::Stage stage;
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std::string warn, err;
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bool ret = LoadUSDCFromFile(pFile, &stage, &warn, &err, options);
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if (!ret) {
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pScene = nullptr;
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}
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}
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};
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} // namespace Assimp
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#endif // !! ASSIMP_BUILD_NO_USD_IMPORTER
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@ -0,0 +1,79 @@
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/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2024, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
|
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with or without modification, are permitted provided that the
|
||||
following conditions are met:
|
||||
|
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* Redistributions of source code must retain the above
|
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copyright notice, this list of conditions and the
|
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following disclaimer.
|
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|
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* Redistributions in binary form must reproduce the above
|
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copyright notice, this list of conditions and the
|
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following disclaimer in the documentation and/or other
|
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materials provided with the distribution.
|
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|
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* Neither the name of the assimp team, nor the names of its
|
||||
contributors may be used to endorse or promote products
|
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derived from this software without specific prior
|
||||
written permission of the assimp team.
|
||||
|
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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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
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/** @file USDLoader.h
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* @brief Declaration of the USD importer class.
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*/
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#pragma once
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#ifndef AI_USDLOADER_H_INCLUDED
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#define AI_USDLOADER_H_INCLUDED
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#include <assimp/BaseImporter.h>
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#include <assimp/types.h>
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#include <vector>
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#include <cstdint>
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#include "tinyusdz.hh"
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namespace Assimp {
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class USDImporter : public BaseImporter {
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public:
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USDImporter() = default;
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~USDImporter() override = default;
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/// \brief Returns whether the class can handle the format of the given file.
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/// \remark See BaseImporter::CanRead() for details.
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bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const override;
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protected:
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//! \brief Appends the supported extension.
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const aiImporterDesc *GetInfo() const override;
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void InternReadFile(
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const std::string &pFile,
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aiScene *pScene,
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IOSystem *pIOHandler) override;
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private:
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bool isUsda(const std::string &pFile) const;
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bool isUsdc(const std::string &pFile) const;
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};
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} // namespace Assimp
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#endif // AI_USDLOADER_H_INCLUDED
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@ -812,6 +812,11 @@ ADD_ASSIMP_IMPORTER( 3D
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AssetLib/Unreal/UnrealLoader.h
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)
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ADD_ASSIMP_IMPORTER( USD
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AssetLib/USD/USDLoader.cpp
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AssetLib/USD/USDLoader.h
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)
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ADD_ASSIMP_IMPORTER( X
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AssetLib/X/XFileHelper.h
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AssetLib/X/XFileImporter.cpp
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@ -55,6 +55,9 @@ corresponding preprocessor flag to selectively disable formats.
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// Importers
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// (include_new_importers_here)
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// ------------------------------------------------------------------------------------------------
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#if !defined(ASSIMP_BUILD_NO_USD_IMPORTER)
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#include "AssetLib/USD/USDLoader.h"
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#endif
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#ifndef ASSIMP_BUILD_NO_X_IMPORTER
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#include "AssetLib/X/XFileImporter.h"
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#endif
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@ -230,6 +233,9 @@ void GetImporterInstanceList(std::vector<BaseImporter *> &out) {
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// (register_new_importers_here)
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// ----------------------------------------------------------------------------
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out.reserve(64);
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#if !defined(ASSIMP_BUILD_NO_USD_IMPORTER)
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out.push_back(new USDImporter());
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#endif
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#if (!defined ASSIMP_BUILD_NO_X_IMPORTER)
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out.push_back(new XFileImporter());
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#endif
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@ -59,6 +59,7 @@ __Importers__:
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- [STL](https://en.wikipedia.org/wiki/STL_(file_format))
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- TER
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- UC
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- [USD](https://en.wikipedia.org/wiki/Universal_Scene_Description)
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- VTA
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- X
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- [X3D](https://en.wikipedia.org/wiki/X3D)
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