diff options
Diffstat (limited to 'src/mesh/assimp-master/code/PostProcessing/ProcessHelper.cpp')
| -rw-r--r-- | src/mesh/assimp-master/code/PostProcessing/ProcessHelper.cpp | 383 |
1 files changed, 0 insertions, 383 deletions
diff --git a/src/mesh/assimp-master/code/PostProcessing/ProcessHelper.cpp b/src/mesh/assimp-master/code/PostProcessing/ProcessHelper.cpp deleted file mode 100644 index 6f0a798..0000000 --- a/src/mesh/assimp-master/code/PostProcessing/ProcessHelper.cpp +++ /dev/null @@ -1,383 +0,0 @@ -/* -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 ProcessHelper.cpp -/** Implement shared utility functions for postprocessing steps */ - -#include "ProcessHelper.h" - -#include <limits> - -namespace Assimp { - -// ------------------------------------------------------------------------------- -void ConvertListToStrings(const std::string &in, std::list<std::string> &out) { - const char *s = in.c_str(); - while (*s) { - SkipSpacesAndLineEnd(&s); - if (*s == '\'') { - const char *base = ++s; - while (*s != '\'') { - ++s; - if (*s == '\0') { - ASSIMP_LOG_ERROR("ConvertListToString: String list is ill-formatted"); - return; - } - } - out.push_back(std::string(base, (size_t)(s - base))); - ++s; - } else { - out.push_back(GetNextToken(s)); - } - } -} - -// ------------------------------------------------------------------------------- -void FindAABBTransformed(const aiMesh *mesh, aiVector3D &min, aiVector3D &max, - const aiMatrix4x4 &m) { - min = aiVector3D(ai_real(10e10), ai_real(10e10), ai_real(10e10)); - max = aiVector3D(ai_real(-10e10), ai_real(-10e10), ai_real(-10e10)); - for (unsigned int i = 0; i < mesh->mNumVertices; ++i) { - const aiVector3D v = m * mesh->mVertices[i]; - min = std::min(v, min); - max = std::max(v, max); - } -} - -// ------------------------------------------------------------------------------- -void FindMeshCenter(aiMesh *mesh, aiVector3D &out, aiVector3D &min, aiVector3D &max) { - ArrayBounds(mesh->mVertices, mesh->mNumVertices, min, max); - out = min + (max - min) * (ai_real)0.5; -} - -// ------------------------------------------------------------------------------- -void FindSceneCenter(aiScene *scene, aiVector3D &out, aiVector3D &min, aiVector3D &max) { - if (nullptr == scene) { - return; - } - - if (0 == scene->mNumMeshes) { - return; - } - FindMeshCenter(scene->mMeshes[0], out, min, max); - for (unsigned int i = 1; i < scene->mNumMeshes; ++i) { - aiVector3D tout, tmin, tmax; - FindMeshCenter(scene->mMeshes[i], tout, tmin, tmax); - if (min[0] > tmin[0]) min[0] = tmin[0]; - if (min[1] > tmin[1]) min[1] = tmin[1]; - if (min[2] > tmin[2]) min[2] = tmin[2]; - if (max[0] < tmax[0]) max[0] = tmax[0]; - if (max[1] < tmax[1]) max[1] = tmax[1]; - if (max[2] < tmax[2]) max[2] = tmax[2]; - } - out = min + (max - min) * (ai_real)0.5; -} - -// ------------------------------------------------------------------------------- -void FindMeshCenterTransformed(aiMesh *mesh, aiVector3D &out, aiVector3D &min, - aiVector3D &max, const aiMatrix4x4 &m) { - FindAABBTransformed(mesh, min, max, m); - out = min + (max - min) * (ai_real)0.5; -} - -// ------------------------------------------------------------------------------- -void FindMeshCenter(aiMesh *mesh, aiVector3D &out) { - aiVector3D min, max; - FindMeshCenter(mesh, out, min, max); -} - -// ------------------------------------------------------------------------------- -void FindMeshCenterTransformed(aiMesh *mesh, aiVector3D &out, - const aiMatrix4x4 &m) { - aiVector3D min, max; - FindMeshCenterTransformed(mesh, out, min, max, m); -} - -// ------------------------------------------------------------------------------- -ai_real ComputePositionEpsilon(const aiMesh *pMesh) { - const ai_real epsilon = ai_real(1e-4); - - // calculate the position bounds so we have a reliable epsilon to check position differences against - aiVector3D minVec, maxVec; - ArrayBounds(pMesh->mVertices, pMesh->mNumVertices, minVec, maxVec); - return (maxVec - minVec).Length() * epsilon; -} - -// ------------------------------------------------------------------------------- -ai_real ComputePositionEpsilon(const aiMesh *const *pMeshes, size_t num) { - ai_assert(nullptr != pMeshes); - - const ai_real epsilon = ai_real(1e-4); - - // calculate the position bounds so we have a reliable epsilon to check position differences against - aiVector3D minVec, maxVec, mi, ma; - MinMaxChooser<aiVector3D>()(minVec, maxVec); - - for (size_t a = 0; a < num; ++a) { - const aiMesh *pMesh = pMeshes[a]; - ArrayBounds(pMesh->mVertices, pMesh->mNumVertices, mi, ma); - - minVec = std::min(minVec, mi); - maxVec = std::max(maxVec, ma); - } - return (maxVec - minVec).Length() * epsilon; -} - -// ------------------------------------------------------------------------------- -unsigned int GetMeshVFormatUnique(const aiMesh *pcMesh) { - ai_assert(nullptr != pcMesh); - - // FIX: the hash may never be 0. Otherwise a comparison against - // nullptr could be successful - unsigned int iRet = 1; - - // normals - if (pcMesh->HasNormals()) iRet |= 0x2; - // tangents and bitangents - if (pcMesh->HasTangentsAndBitangents()) iRet |= 0x4; - -#ifdef BOOST_STATIC_ASSERT - BOOST_STATIC_ASSERT(8 >= AI_MAX_NUMBER_OF_COLOR_SETS); - BOOST_STATIC_ASSERT(8 >= AI_MAX_NUMBER_OF_TEXTURECOORDS); -#endif - - // texture coordinates - unsigned int p = 0; - while (pcMesh->HasTextureCoords(p)) { - iRet |= (0x100 << p); - if (3 == pcMesh->mNumUVComponents[p]) - iRet |= (0x10000 << p); - - ++p; - } - // vertex colors - p = 0; - while (pcMesh->HasVertexColors(p)) - iRet |= (0x1000000 << p++); - return iRet; -} - -// ------------------------------------------------------------------------------- -VertexWeightTable *ComputeVertexBoneWeightTable(const aiMesh *pMesh) { - if (!pMesh || !pMesh->mNumVertices || !pMesh->mNumBones) { - return nullptr; - } - - VertexWeightTable *avPerVertexWeights = new VertexWeightTable[pMesh->mNumVertices]; - for (unsigned int i = 0; i < pMesh->mNumBones; ++i) { - - aiBone *bone = pMesh->mBones[i]; - for (unsigned int a = 0; a < bone->mNumWeights; ++a) { - const aiVertexWeight &weight = bone->mWeights[a]; - avPerVertexWeights[weight.mVertexId].push_back(std::pair<unsigned int, float>(i, weight.mWeight)); - } - } - return avPerVertexWeights; -} - -// ------------------------------------------------------------------------------- -const char *MappingTypeToString(aiTextureMapping in) { - switch (in) { - case aiTextureMapping_UV: - return "UV"; - case aiTextureMapping_BOX: - return "Box"; - case aiTextureMapping_SPHERE: - return "Sphere"; - case aiTextureMapping_CYLINDER: - return "Cylinder"; - case aiTextureMapping_PLANE: - return "Plane"; - case aiTextureMapping_OTHER: - return "Other"; - default: - break; - } - - ai_assert(false); - return "BUG"; -} - -// ------------------------------------------------------------------------------- -aiMesh *MakeSubmesh(const aiMesh *pMesh, const std::vector<unsigned int> &subMeshFaces, unsigned int subFlags) { - aiMesh *oMesh = new aiMesh(); - std::vector<unsigned int> vMap(pMesh->mNumVertices, UINT_MAX); - - size_t numSubVerts = 0; - size_t numSubFaces = subMeshFaces.size(); - - for (unsigned int i = 0; i < numSubFaces; i++) { - const aiFace &f = pMesh->mFaces[subMeshFaces[i]]; - - for (unsigned int j = 0; j < f.mNumIndices; j++) { - if (vMap[f.mIndices[j]] == UINT_MAX) { - vMap[f.mIndices[j]] = static_cast<unsigned int>(numSubVerts++); - } - } - } - - oMesh->mName = pMesh->mName; - - oMesh->mMaterialIndex = pMesh->mMaterialIndex; - oMesh->mPrimitiveTypes = pMesh->mPrimitiveTypes; - - // create all the arrays for this mesh if the old mesh contained them - - oMesh->mNumFaces = static_cast<unsigned int>(subMeshFaces.size()); - oMesh->mNumVertices = static_cast<unsigned int>(numSubVerts); - oMesh->mVertices = new aiVector3D[numSubVerts]; - if (pMesh->HasNormals()) { - oMesh->mNormals = new aiVector3D[numSubVerts]; - } - - if (pMesh->HasTangentsAndBitangents()) { - oMesh->mTangents = new aiVector3D[numSubVerts]; - oMesh->mBitangents = new aiVector3D[numSubVerts]; - } - - for (size_t a = 0; pMesh->HasTextureCoords(static_cast<unsigned int>(a)); ++a) { - oMesh->mTextureCoords[a] = new aiVector3D[numSubVerts]; - oMesh->mNumUVComponents[a] = pMesh->mNumUVComponents[a]; - } - - for (size_t a = 0; pMesh->HasVertexColors(static_cast<unsigned int>(a)); ++a) { - oMesh->mColors[a] = new aiColor4D[numSubVerts]; - } - - // and copy over the data, generating faces with linear indices along the way - oMesh->mFaces = new aiFace[numSubFaces]; - - for (unsigned int a = 0; a < numSubFaces; ++a) { - - const aiFace &srcFace = pMesh->mFaces[subMeshFaces[a]]; - aiFace &dstFace = oMesh->mFaces[a]; - dstFace.mNumIndices = srcFace.mNumIndices; - dstFace.mIndices = new unsigned int[dstFace.mNumIndices]; - - // accumulate linearly all the vertices of the source face - for (size_t b = 0; b < dstFace.mNumIndices; ++b) { - dstFace.mIndices[b] = vMap[srcFace.mIndices[b]]; - } - } - - for (unsigned int srcIndex = 0; srcIndex < pMesh->mNumVertices; ++srcIndex) { - unsigned int nvi = vMap[srcIndex]; - if (nvi == UINT_MAX) { - continue; - } - - oMesh->mVertices[nvi] = pMesh->mVertices[srcIndex]; - if (pMesh->HasNormals()) { - oMesh->mNormals[nvi] = pMesh->mNormals[srcIndex]; - } - - if (pMesh->HasTangentsAndBitangents()) { - oMesh->mTangents[nvi] = pMesh->mTangents[srcIndex]; - oMesh->mBitangents[nvi] = pMesh->mBitangents[srcIndex]; - } - for (size_t c = 0, cc = pMesh->GetNumUVChannels(); c < cc; ++c) { - oMesh->mTextureCoords[c][nvi] = pMesh->mTextureCoords[c][srcIndex]; - } - for (size_t c = 0, cc = pMesh->GetNumColorChannels(); c < cc; ++c) { - oMesh->mColors[c][nvi] = pMesh->mColors[c][srcIndex]; - } - } - - if (~subFlags & AI_SUBMESH_FLAGS_SANS_BONES) { - std::vector<unsigned int> subBones(pMesh->mNumBones, 0); - - for (unsigned int a = 0; a < pMesh->mNumBones; ++a) { - const aiBone *bone = pMesh->mBones[a]; - - for (unsigned int b = 0; b < bone->mNumWeights; b++) { - unsigned int v = vMap[bone->mWeights[b].mVertexId]; - - if (v != UINT_MAX) { - subBones[a]++; - } - } - } - - for (unsigned int a = 0; a < pMesh->mNumBones; ++a) { - if (subBones[a] > 0) { - oMesh->mNumBones++; - } - } - - if (oMesh->mNumBones) { - oMesh->mBones = new aiBone *[oMesh->mNumBones](); - unsigned int nbParanoia = oMesh->mNumBones; - - oMesh->mNumBones = 0; //rewind - - for (unsigned int a = 0; a < pMesh->mNumBones; ++a) { - if (subBones[a] == 0) { - continue; - } - aiBone *newBone = new aiBone; - oMesh->mBones[oMesh->mNumBones++] = newBone; - - const aiBone *bone = pMesh->mBones[a]; - - newBone->mName = bone->mName; - newBone->mOffsetMatrix = bone->mOffsetMatrix; - newBone->mWeights = new aiVertexWeight[subBones[a]]; - - for (unsigned int b = 0; b < bone->mNumWeights; b++) { - const unsigned int v = vMap[bone->mWeights[b].mVertexId]; - - if (v != UINT_MAX) { - aiVertexWeight w(v, bone->mWeights[b].mWeight); - newBone->mWeights[newBone->mNumWeights++] = w; - } - } - } - - ai_assert(nbParanoia == oMesh->mNumBones); - (void)nbParanoia; // remove compiler warning on release build - } - } - - return oMesh; -} - -} // namespace Assimp |