add assimp submodule

1 files changed, 232 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/code/PostProcessing/TextureTransform.h b/src/mesh/assimp-master/code/PostProcessing/TextureTransform.h
new file mode 100644
index 0000000..c1cccf8
--- /dev/null
+++ b/src/mesh/assimp-master/code/PostProcessing/TextureTransform.h
@@ -0,0 +1,232 @@
+/*
+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 Definition of a helper step that processes texture transformations */
+#ifndef AI_TEXTURE_TRANSFORM_H_INCLUDED
+#define AI_TEXTURE_TRANSFORM_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include "Common/BaseProcess.h"
+
+#include <assimp/material.h>
+#include <list>
+
+struct aiNode;
+struct aiMaterial;
+
+namespace Assimp    {
+
+#define AI_TT_UV_IDX_LOCK_TBD   0xffffffff
+#define AI_TT_UV_IDX_LOCK_NONE  0xeeeeeeee
+
+
+#define AI_TT_ROTATION_EPSILON  ((float)AI_DEG_TO_RAD(0.5))
+
+// ---------------------------------------------------------------------------
+/** Small helper structure representing a shortcut into the material list
+ *  to be able to update some values quickly.
+*/
+struct TTUpdateInfo {
+    TTUpdateInfo() AI_NO_EXCEPT
+    : directShortcut(nullptr)
+    , mat(nullptr)
+    , semantic(0)
+    , index(0) {
+        // empty
+    }
+
+    //! Direct shortcut, if available
+    unsigned int* directShortcut;
+
+    //! Material
+    aiMaterial *mat;
+
+    //! Texture type and index
+    unsigned int semantic, index;
+};
+
+
+// ---------------------------------------------------------------------------
+/** Helper class representing texture coordinate transformations
+*/
+struct STransformVecInfo : public aiUVTransform {
+    STransformVecInfo() AI_NO_EXCEPT
+    : uvIndex(0)
+    , mapU(aiTextureMapMode_Wrap)
+    , mapV(aiTextureMapMode_Wrap)
+    , lockedPos(AI_TT_UV_IDX_LOCK_NONE) {
+        // empty
+    }
+
+    //! Source texture coordinate index
+    unsigned int uvIndex;
+
+    //! Texture mapping mode in the u, v direction
+    aiTextureMapMode mapU,mapV;
+
+    //! Locked destination UV index
+    //! AI_TT_UV_IDX_LOCK_TBD - to be determined
+    //! AI_TT_UV_IDX_LOCK_NONE - none (default)
+    unsigned int lockedPos;
+
+    //! Update info - shortcuts into all materials
+    //! that are referencing this transform setup
+    std::list<TTUpdateInfo> updateList;
+
+
+    // -------------------------------------------------------------------
+    /** Compare two transform setups
+    */
+    inline bool operator== (const STransformVecInfo& other) const
+    {
+        // We use a small epsilon here
+        const static float epsilon = 0.05f;
+
+        if (std::fabs( mTranslation.x - other.mTranslation.x ) > epsilon ||
+            std::fabs( mTranslation.y - other.mTranslation.y ) > epsilon)
+        {
+            return false;
+        }
+
+        if (std::fabs( mScaling.x - other.mScaling.x ) > epsilon ||
+            std::fabs( mScaling.y - other.mScaling.y ) > epsilon)
+        {
+            return false;
+        }
+
+        if (std::fabs( mRotation - other.mRotation) > epsilon)
+        {
+            return false;
+        }
+        return true;
+    }
+
+    inline bool operator!= (const STransformVecInfo& other) const
+    {
+            return !(*this == other);
+    }
+
+
+    // -------------------------------------------------------------------
+    /** Returns whether this is an untransformed texture coordinate set
+    */
+    inline bool IsUntransformed() const
+    {
+        return (1.0f == mScaling.x && 1.f == mScaling.y &&
+            !mTranslation.x && !mTranslation.y &&
+            mRotation < AI_TT_ROTATION_EPSILON);
+    }
+
+    // -------------------------------------------------------------------
+    /** Build a 3x3 matrix from the transformations
+    */
+    inline void GetMatrix(aiMatrix3x3& mOut)
+    {
+        mOut = aiMatrix3x3();
+
+        if (1.0f != mScaling.x || 1.0f != mScaling.y)
+        {
+            aiMatrix3x3 mScale;
+            mScale.a1 = mScaling.x;
+            mScale.b2 = mScaling.y;
+            mOut = mScale;
+        }
+        if (mRotation)
+        {
+            aiMatrix3x3 mRot;
+            mRot.a1 = mRot.b2 = std::cos(mRotation);
+            mRot.a2 = mRot.b1 = std::sin(mRotation);
+            mRot.a2 = -mRot.a2;
+            mOut *= mRot;
+        }
+        if (mTranslation.x || mTranslation.y)
+        {
+            aiMatrix3x3 mTrans;
+            mTrans.a3 = mTranslation.x;
+            mTrans.b3 = mTranslation.y;
+            mOut *= mTrans;
+        }
+    }
+};
+
+
+// ---------------------------------------------------------------------------
+/** Helper step to compute final UV coordinate sets if there are scalings
+ *  or rotations in the original data read from the file.
+*/
+class TextureTransformStep : public BaseProcess
+{
+public:
+
+    TextureTransformStep();
+    ~TextureTransformStep();
+
+public:
+
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    void SetupProperties(const Importer* pImp);
+
+
+protected:
+
+
+    // -------------------------------------------------------------------
+    /** Preprocess a specific UV transformation setup
+     *
+     *  @param info Transformation setup to be preprocessed.
+    */
+    void PreProcessUVTransform(STransformVecInfo& info);
+
+private:
+
+    unsigned int configFlags;
+};
+
+}
+
+#endif //! AI_TEXTURE_TRANSFORM_H_INCLUDED