switch to tinyobj and nanovg from assimp and cairo

1 files changed, 0 insertions, 567 deletions

diff --git a/libs/assimp/code/PostProcessing/TextureTransform.cpp b/libs/assimp/code/PostProcessing/TextureTransform.cpp
deleted file mode 100644
index 653506e..0000000
--- a/libs/assimp/code/PostProcessing/TextureTransform.cpp
+++ /dev/null
@@ -1,567 +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 A helper class that processes texture transformations */
-
-
-
-#include <assimp/Importer.hpp>
-#include <assimp/postprocess.h>
-#include <assimp/DefaultLogger.hpp>
-#include <assimp/scene.h>
-
-#include "TextureTransform.h"
-#include <assimp/StringUtils.h>
-
-using namespace Assimp;
-
-// ------------------------------------------------------------------------------------------------
-// Constructor to be privately used by Importer
-TextureTransformStep::TextureTransformStep() :
-    configFlags()
-{
-    // nothing to do here
-}
-
-// ------------------------------------------------------------------------------------------------
-// Destructor, private as well
-TextureTransformStep::~TextureTransformStep()
-{
-    // nothing to do here
-}
-
-// ------------------------------------------------------------------------------------------------
-// Returns whether the processing step is present in the given flag field.
-bool TextureTransformStep::IsActive( unsigned int pFlags) const
-{
-    return  (pFlags & aiProcess_TransformUVCoords) != 0;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Setup properties
-void TextureTransformStep::SetupProperties(const Importer* pImp)
-{
-    configFlags = pImp->GetPropertyInteger(AI_CONFIG_PP_TUV_EVALUATE,AI_UVTRAFO_ALL);
-}
-
-// ------------------------------------------------------------------------------------------------
-void TextureTransformStep::PreProcessUVTransform(STransformVecInfo& info)
-{
-    /*  This function tries to simplify the input UV transformation.
-     *  That's very important as it allows us to reduce the number
-     *  of output UV channels. The order in which the transformations
-     *  are applied is - as always - scaling, rotation, translation.
-     */
-
-	int rounded;
-	char szTemp[512];
-
-    /* Optimize the rotation angle. That's slightly difficult as
-     * we have an inprecise floating-point number (when comparing
-     * UV transformations we'll take that into account by using
-     * an epsilon of 5 degrees). If there is a rotation value, we can't
-     * perform any further optimizations.
-     */
-    if (info.mRotation)
-    {
-        float out = info.mRotation;
-        rounded = static_cast<int>((info.mRotation / static_cast<float>(AI_MATH_TWO_PI)));
-        if (rounded)
-        {
-            out -= rounded * static_cast<float>(AI_MATH_PI);
-            ASSIMP_LOG_INFO("Texture coordinate rotation ", info.mRotation, " can be simplified to ", out);
-        }
-
-        // Next step - convert negative rotation angles to positives
-        if (out < 0.f)
-            out = (float)AI_MATH_TWO_PI * 2 + out;
-
-        info.mRotation = out;
-        return;
-    }
-
-
-    /* Optimize UV translation in the U direction. To determine whether
-     * or not we can optimize we need to look at the requested mapping
-     * type (e.g. if mirroring is active there IS a difference between
-     * offset 2 and 3)
-     */
-    rounded = (int)info.mTranslation.x;
-    if (rounded) {
-        float out = 0.0f;
-        szTemp[0] = 0;
-        if (aiTextureMapMode_Wrap == info.mapU) {
-            // Wrap - simple take the fraction of the field
-            out = info.mTranslation.x-(float)rounded;
-			ai_snprintf(szTemp, 512, "[w] UV U offset %f can be simplified to %f", info.mTranslation.x, out);
-        }
-        else if (aiTextureMapMode_Mirror == info.mapU && 1 != rounded)  {
-            // Mirror
-            if (rounded % 2)
-                rounded--;
-            out = info.mTranslation.x-(float)rounded;
-
-            ai_snprintf(szTemp,512,"[m/d] UV U offset %f can be simplified to %f",info.mTranslation.x,out);
-        }
-        else if (aiTextureMapMode_Clamp == info.mapU || aiTextureMapMode_Decal == info.mapU)    {
-            // Clamp - translations beyond 1,1 are senseless
-            ai_snprintf(szTemp,512,"[c] UV U offset %f can be clamped to 1.0f",info.mTranslation.x);
-
-            out = 1.f;
-        }
-        if (szTemp[0])      {
-            ASSIMP_LOG_INFO(szTemp);
-            info.mTranslation.x = out;
-        }
-    }
-
-    /* Optimize UV translation in the V direction. To determine whether
-     * or not we can optimize we need to look at the requested mapping
-     * type (e.g. if mirroring is active there IS a difference between
-     * offset 2 and 3)
-     */
-    rounded = (int)info.mTranslation.y;
-    if (rounded) {
-        float out = 0.0f;
-        szTemp[0] = 0;
-        if (aiTextureMapMode_Wrap == info.mapV) {
-            // Wrap - simple take the fraction of the field
-            out = info.mTranslation.y-(float)rounded;
-            ::ai_snprintf(szTemp,512,"[w] UV V offset %f can be simplified to %f",info.mTranslation.y,out);
-        }
-        else if (aiTextureMapMode_Mirror == info.mapV  && 1 != rounded) {
-            // Mirror
-            if (rounded % 2)
-                rounded--;
-            out = info.mTranslation.x-(float)rounded;
-
-            ::ai_snprintf(szTemp,512,"[m/d] UV V offset %f can be simplified to %f",info.mTranslation.y,out);
-        }
-        else if (aiTextureMapMode_Clamp == info.mapV || aiTextureMapMode_Decal == info.mapV)    {
-            // Clamp - translations beyond 1,1 are senseless
-            ::ai_snprintf(szTemp,512,"[c] UV V offset %f can be clamped to 1.0f",info.mTranslation.y);
-
-            out = 1.f;
-        }
-        if (szTemp[0])  {
-            ASSIMP_LOG_INFO(szTemp);
-            info.mTranslation.y = out;
-        }
-    }
-}
-
-// ------------------------------------------------------------------------------------------------
-void UpdateUVIndex(const std::list<TTUpdateInfo>& l, unsigned int n)
-{
-    // Don't set if == 0 && wasn't set before
-    for (std::list<TTUpdateInfo>::const_iterator it = l.begin();it != l.end(); ++it) {
-        const TTUpdateInfo& info = *it;
-
-        if (info.directShortcut)
-            *info.directShortcut = n;
-        else if (!n)
-        {
-            info.mat->AddProperty<int>((int*)&n,1,AI_MATKEY_UVWSRC(info.semantic,info.index));
-        }
-    }
-}
-
-// ------------------------------------------------------------------------------------------------
-inline const char* MappingModeToChar(aiTextureMapMode map)
-{
-    if (aiTextureMapMode_Wrap == map)
-        return "-w";
-
-    if (aiTextureMapMode_Mirror == map)
-        return "-m";
-
-    return "-c";
-}
-
-// ------------------------------------------------------------------------------------------------
-void TextureTransformStep::Execute( aiScene* pScene)
-{
-    ASSIMP_LOG_DEBUG("TransformUVCoordsProcess begin");
-
-
-    /*  We build a per-mesh list of texture transformations we'll need
-     *  to apply. To achieve this, we iterate through all materials,
-     *  find all textures and get their transformations and UV indices.
-     *  Then we search for all meshes using this material.
-     */
-    typedef std::list<STransformVecInfo> MeshTrafoList;
-    std::vector<MeshTrafoList> meshLists(pScene->mNumMeshes);
-
-    for (unsigned int i = 0; i < pScene->mNumMaterials;++i) {
-
-        aiMaterial* mat = pScene->mMaterials[i];
-        for (unsigned int a = 0; a < mat->mNumProperties;++a)   {
-
-            aiMaterialProperty* prop = mat->mProperties[a];
-            if (!::strcmp( prop->mKey.data, "$tex.file"))   {
-                STransformVecInfo info;
-
-                // Setup a shortcut structure to allow for a fast updating
-                // of the UV index later
-                TTUpdateInfo update;
-                update.mat = (aiMaterial*) mat;
-                update.semantic = prop->mSemantic;
-                update.index = prop->mIndex;
-
-                // Get textured properties and transform
-                for (unsigned int a2 = 0; a2 < mat->mNumProperties;++a2)  {
-                    aiMaterialProperty* prop2 = mat->mProperties[a2];
-                    if (prop2->mSemantic != prop->mSemantic || prop2->mIndex != prop->mIndex) {
-                        continue;
-                    }
-
-                    if ( !::strcmp( prop2->mKey.data, "$tex.uvwsrc")) {
-                        info.uvIndex = *((int*)prop2->mData);
-
-                        // Store a direct pointer for later use
-                        update.directShortcut = (unsigned int*) prop2->mData;
-                    }
-
-                    else if ( !::strcmp( prop2->mKey.data, "$tex.mapmodeu")) {
-                        info.mapU = *((aiTextureMapMode*)prop2->mData);
-                    }
-                    else if ( !::strcmp( prop2->mKey.data, "$tex.mapmodev")) {
-                        info.mapV = *((aiTextureMapMode*)prop2->mData);
-                    }
-                    else if ( !::strcmp( prop2->mKey.data, "$tex.uvtrafo"))  {
-                        // ValidateDS should check this
-                        ai_assert(prop2->mDataLength >= 20);
-                        ::memcpy(&info.mTranslation.x,prop2->mData,sizeof(float)*5);
-
-                        // Directly remove this property from the list
-                        mat->mNumProperties--;
-                        for (unsigned int a3 = a2; a3 < mat->mNumProperties;++a3) {
-                            mat->mProperties[a3] = mat->mProperties[a3+1];
-                        }
-
-                        delete prop2;
-
-                        // Warn: could be an underflow, but this does not invoke undefined behaviour
-                        --a2;
-                    }
-                }
-
-                // Find out which transformations are to be evaluated
-                if (!(configFlags & AI_UVTRAFO_ROTATION)) {
-                    info.mRotation = 0.f;
-                }
-                if (!(configFlags & AI_UVTRAFO_SCALING)) {
-                    info.mScaling = aiVector2D(1.f,1.f);
-                }
-                if (!(configFlags & AI_UVTRAFO_TRANSLATION)) {
-                    info.mTranslation = aiVector2D(0.f,0.f);
-                }
-
-                // Do some preprocessing
-                PreProcessUVTransform(info);
-                info.uvIndex = std::min(info.uvIndex,AI_MAX_NUMBER_OF_TEXTURECOORDS -1u);
-
-                // Find out whether this material is used by more than
-                // one mesh. This will make our task much, much more difficult!
-                unsigned int cnt = 0;
-                for (unsigned int n = 0; n < pScene->mNumMeshes;++n)    {
-                    if (pScene->mMeshes[n]->mMaterialIndex == i)
-                        ++cnt;
-                }
-
-                if (!cnt)
-                    continue;
-                else if (1 != cnt)  {
-                    // This material is referenced by more than one mesh!
-                    // So we need to make sure the UV index for the texture
-                    // is identical for each of it ...
-                    info.lockedPos = AI_TT_UV_IDX_LOCK_TBD;
-                }
-
-                // Get all corresponding meshes
-                for (unsigned int n = 0; n < pScene->mNumMeshes;++n)    {
-                    aiMesh* mesh = pScene->mMeshes[n];
-                    if (mesh->mMaterialIndex != i || !mesh->mTextureCoords[0])
-                        continue;
-
-                    unsigned int uv = info.uvIndex;
-                    if (!mesh->mTextureCoords[uv])  {
-                        // If the requested UV index is not available, take the first one instead.
-                        uv = 0;
-                    }
-
-                    if (mesh->mNumUVComponents[info.uvIndex] >= 3){
-                        ASSIMP_LOG_WARN("UV transformations on 3D mapping channels are not supported");
-                        continue;
-                    }
-
-                    MeshTrafoList::iterator it;
-
-                    // Check whether we have this transform setup already
-                    for (it = meshLists[n].begin();it != meshLists[n].end(); ++it)  {
-
-                        if ((*it) == info && (*it).uvIndex == uv)   {
-                            (*it).updateList.push_back(update);
-                            break;
-                        }
-                    }
-
-                    if (it == meshLists[n].end())   {
-                        meshLists[n].push_back(info);
-                        meshLists[n].back().uvIndex = uv;
-                        meshLists[n].back().updateList.push_back(update);
-                    }
-                }
-            }
-        }
-    }
-
-    char buffer[1024]; // should be sufficiently large
-    unsigned int outChannels = 0, inChannels = 0, transformedChannels = 0;
-
-    // Now process all meshes. Important: we don't remove unreferenced UV channels.
-    // This is a job for the RemoveUnreferencedData-Step.
-    for (unsigned int q = 0; q < pScene->mNumMeshes;++q)    {
-
-        aiMesh* mesh = pScene->mMeshes[q];
-        MeshTrafoList& trafo =  meshLists[q];
-
-        inChannels += mesh->GetNumUVChannels();
-
-        if (!mesh->mTextureCoords[0] || trafo.empty() ||  (trafo.size() == 1 && trafo.begin()->IsUntransformed())) {
-            outChannels += mesh->GetNumUVChannels();
-            continue;
-        }
-
-        // Move untransformed UV channels to the first position in the list ....
-        // except if we need a new locked index which should be as small as possible
-        bool veto = false, need = false;
-        unsigned int cnt = 0;
-        unsigned int untransformed = 0;
-
-        MeshTrafoList::iterator it,it2;
-        for (it = trafo.begin();it != trafo.end(); ++it,++cnt)  {
-
-            if (!(*it).IsUntransformed()) {
-                need = true;
-            }
-
-            if ((*it).lockedPos == AI_TT_UV_IDX_LOCK_TBD)   {
-                // Lock this index and make sure it won't be changed
-                (*it).lockedPos = cnt;
-                veto = true;
-                continue;
-            }
-
-            if (!veto && it != trafo.begin() && (*it).IsUntransformed())    {
-                for (it2 = trafo.begin();it2 != it; ++it2) {
-                    if (!(*it2).IsUntransformed())
-                        break;
-                }
-                trafo.insert(it2,*it);
-                trafo.erase(it);
-                break;
-            }
-        }
-        if (!need)
-            continue;
-
-        // Find all that are not at their 'locked' position and move them to it.
-        // Conflicts are possible but quite unlikely.
-        cnt = 0;
-        for (it = trafo.begin();it != trafo.end(); ++it,++cnt) {
-            if ((*it).lockedPos != AI_TT_UV_IDX_LOCK_NONE && (*it).lockedPos != cnt) {
-                it2 = trafo.begin();unsigned int t = 0;
-                while (t != (*it).lockedPos)
-                    ++it2;
-
-                if ((*it2).lockedPos != AI_TT_UV_IDX_LOCK_NONE) {
-                    ASSIMP_LOG_ERROR("Channel mismatch, can't compute all transformations properly [design bug]");
-                    continue;
-                }
-
-                std::swap(*it2,*it);
-                if ((*it).lockedPos == untransformed)
-                    untransformed = cnt;
-            }
-        }
-
-        // ... and add dummies for all unreferenced channels
-        // at the end of the list
-        bool ref[AI_MAX_NUMBER_OF_TEXTURECOORDS];
-        for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_TEXTURECOORDS;++n)
-            ref[n] = !mesh->mTextureCoords[n];
-
-        for (it = trafo.begin();it != trafo.end(); ++it)
-            ref[(*it).uvIndex] = true;
-
-        for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_TEXTURECOORDS;++n) {
-            if (ref[n])
-                continue;
-            trafo.push_back(STransformVecInfo());
-            trafo.back().uvIndex = n;
-        }
-
-        // Then check whether this list breaks the channel limit.
-        // The unimportant ones are at the end of the list, so
-        // it shouldn't be too worse if we remove them.
-        unsigned int size = (unsigned int)trafo.size();
-        if (size > AI_MAX_NUMBER_OF_TEXTURECOORDS) {
-
-            if (!DefaultLogger::isNullLogger()) {
-                ASSIMP_LOG_ERROR(static_cast<unsigned int>(trafo.size()), " UV channels required but just ",
-                    AI_MAX_NUMBER_OF_TEXTURECOORDS, " available");
-            }
-            size = AI_MAX_NUMBER_OF_TEXTURECOORDS;
-        }
-
-
-        aiVector3D* old[AI_MAX_NUMBER_OF_TEXTURECOORDS];
-        for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_TEXTURECOORDS;++n)
-            old[n] = mesh->mTextureCoords[n];
-
-        // Now continue and generate the output channels. Channels
-        // that we're not going to need later can be overridden.
-        it = trafo.begin();
-        for (unsigned int n = 0; n < trafo.size();++n,++it) {
-
-            if (n >= size)  {
-                // Try to use an untransformed channel for all channels we threw over board
-                UpdateUVIndex((*it).updateList,untransformed);
-                continue;
-            }
-
-            outChannels++;
-
-            // Write to the log
-            if (!DefaultLogger::isNullLogger()) {
-                ::ai_snprintf(buffer,1024,"Mesh %u, channel %u: t(%.3f,%.3f), s(%.3f,%.3f), r(%.3f), %s%s",
-                    q,n,
-                    (*it).mTranslation.x,
-                    (*it).mTranslation.y,
-                    (*it).mScaling.x,
-                    (*it).mScaling.y,
-                    AI_RAD_TO_DEG( (*it).mRotation),
-                    MappingModeToChar ((*it).mapU),
-                    MappingModeToChar ((*it).mapV));
-
-                ASSIMP_LOG_INFO(buffer);
-            }
-
-            // Check whether we need a new buffer here
-            if (mesh->mTextureCoords[n])    {
-
-                it2 = it;++it2;
-                for (unsigned int m = n+1; m < size;++m, ++it2) {
-
-                    if ((*it2).uvIndex == n){
-                        it2 = trafo.begin();
-                        break;
-                    }
-                }
-                if (it2 == trafo.begin()){
-                    mesh->mTextureCoords[n] = new aiVector3D[mesh->mNumVertices];
-                }
-            }
-            else mesh->mTextureCoords[n] = new aiVector3D[mesh->mNumVertices];
-
-            aiVector3D* src = old[(*it).uvIndex];
-            aiVector3D* dest, *end;
-            dest = mesh->mTextureCoords[n];
-
-            ai_assert(nullptr != src);
-
-            // Copy the data to the destination array
-            if (dest != src)
-                ::memcpy(dest,src,sizeof(aiVector3D)*mesh->mNumVertices);
-
-            end = dest + mesh->mNumVertices;
-
-            // Build a transformation matrix and transform all UV coords with it
-            if (!(*it).IsUntransformed()) {
-                const aiVector2D& trl = (*it).mTranslation;
-                const aiVector2D& scl = (*it).mScaling;
-
-                // fixme: simplify ..
-                ++transformedChannels;
-                aiMatrix3x3 matrix;
-
-                aiMatrix3x3 m2,m3,m4,m5;
-
-                m4.a1 = scl.x;
-                m4.b2 = scl.y;
-
-                m2.a3 = m2.b3 = 0.5f;
-                m3.a3 = m3.b3 = -0.5f;
-
-                if ((*it).mRotation > AI_TT_ROTATION_EPSILON )
-                    aiMatrix3x3::RotationZ((*it).mRotation,matrix);
-
-                m5.a3 += trl.x; m5.b3 += trl.y;
-                matrix = m2 * m4 * matrix * m3 * m5;
-
-                for (src = dest; src != end; ++src) { /* manual homogeneous divide */
-                    src->z = 1.f;
-                    *src = matrix * *src;
-                    src->x /= src->z;
-                    src->y /= src->z;
-                    src->z = 0.f;
-                }
-            }
-
-            // Update all UV indices
-            UpdateUVIndex((*it).updateList,n);
-        }
-    }
-
-    // Print some detailed statistics into the log
-    if (!DefaultLogger::isNullLogger()) {
-
-        if (transformedChannels)    {
-            ASSIMP_LOG_INFO("TransformUVCoordsProcess end: ", outChannels, " output channels (in: ", inChannels, ", modified: ", transformedChannels,")");
-        } else {
-            ASSIMP_LOG_DEBUG("TransformUVCoordsProcess finished");
-        }
-    }
-}
-
-