1 files changed, 119 insertions, 0 deletions
diff --git a/libs/assimp/code/AssetLib/Irr/IRRShared.h b/libs/assimp/code/AssetLib/Irr/IRRShared.h
new file mode 100644
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+++ b/libs/assimp/code/AssetLib/Irr/IRRShared.h
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+
+
+/** @file  IRRShared.h
+  * @brief Shared utilities for the IRR and IRRMESH loaders
+  */
+
+#ifndef INCLUDED_AI_IRRSHARED_H
+#define INCLUDED_AI_IRRSHARED_H
+
+#include <assimp/BaseImporter.h>
+#include <assimp/XmlParser.h>
+#include <cstdint>
+
+struct aiMaterial;
+
+namespace Assimp {
+
+/** @brief Matrix to convert from Assimp to IRR and backwards
+ */
+extern const aiMatrix4x4 AI_TO_IRR_MATRIX;
+
+// Default: 0 = solid, one texture
+#define AI_IRRMESH_MAT_solid_2layer 0x10000
+
+// Transparency flags
+#define AI_IRRMESH_MAT_trans_vertex_alpha 0x1
+#define AI_IRRMESH_MAT_trans_add 0x2
+
+// Lightmapping flags
+#define AI_IRRMESH_MAT_lightmap 0x2
+#define AI_IRRMESH_MAT_lightmap_m2 (AI_IRRMESH_MAT_lightmap | 0x4)
+#define AI_IRRMESH_MAT_lightmap_m4 (AI_IRRMESH_MAT_lightmap | 0x8)
+#define AI_IRRMESH_MAT_lightmap_light (AI_IRRMESH_MAT_lightmap | 0x10)
+#define AI_IRRMESH_MAT_lightmap_light_m2 (AI_IRRMESH_MAT_lightmap | 0x20)
+#define AI_IRRMESH_MAT_lightmap_light_m4 (AI_IRRMESH_MAT_lightmap | 0x40)
+#define AI_IRRMESH_MAT_lightmap_add (AI_IRRMESH_MAT_lightmap | 0x80)
+
+// Standard NormalMap (or Parallax map, they're treated equally)
+#define AI_IRRMESH_MAT_normalmap_solid (0x100)
+
+// Normal map combined with vertex alpha
+#define AI_IRRMESH_MAT_normalmap_tva \
+    (AI_IRRMESH_MAT_normalmap_solid | AI_IRRMESH_MAT_trans_vertex_alpha)
+
+// Normal map combined with additive transparency
+#define AI_IRRMESH_MAT_normalmap_ta \
+    (AI_IRRMESH_MAT_normalmap_solid | AI_IRRMESH_MAT_trans_add)
+
+// Special flag. It indicates a second texture has been found
+// Its type depends ... either a normal textue or a normal map
+#define AI_IRRMESH_EXTRA_2ND_TEXTURE 0x100000
+
+// ---------------------------------------------------------------------------
+/** Base class for the Irr and IrrMesh importers.
+ *
+ *  Declares some irrlight-related xml parsing utilities and provides tools
+ *  to load materials from IRR and IRRMESH files.
+ */
+class IrrlichtBase {
+protected:
+    IrrlichtBase() :
+            mNode(nullptr) {
+        // empty
+    }
+
+    ~IrrlichtBase() {
+        // empty
+    }
+
+    /** @brief Data structure for a simple name-value property
+     */
+    template <class T>
+    struct Property {
+        std::string name;
+        T value;
+    };
+
+    typedef Property<uint32_t> HexProperty;
+    typedef Property<std::string> StringProperty;
+    typedef Property<bool> BoolProperty;
+    typedef Property<float> FloatProperty;
+    typedef Property<aiVector3D> VectorProperty;
+    typedef Property<int> IntProperty;
+
+    /// XML reader instance
+    XmlParser mParser;
+    pugi::xml_node *mNode;
+
+    // -------------------------------------------------------------------
+    /** Parse a material description from the XML
+     *  @return The created material
+     *  @param matFlags Receives AI_IRRMESH_MAT_XX flags
+     */
+    aiMaterial *ParseMaterial(unsigned int &matFlags);
+
+    // -------------------------------------------------------------------
+    /** Read a property of the specified type from the current XML element.
+     *  @param out Receives output data
+     */
+    void ReadHexProperty(HexProperty &out);
+    void ReadStringProperty(StringProperty &out);
+    void ReadBoolProperty(BoolProperty &out);
+    void ReadFloatProperty(FloatProperty &out);
+    void ReadVectorProperty(VectorProperty &out);
+    void ReadIntProperty(IntProperty &out);
+};
+
+// ------------------------------------------------------------------------------------------------
+// Unpack a hex color, e.g. 0xdcdedfff
+inline void ColorFromARGBPacked(uint32_t in, aiColor4D &clr) {
+    clr.a = ((in >> 24) & 0xff) / 255.f;
+    clr.r = ((in >> 16) & 0xff) / 255.f;
+    clr.g = ((in >> 8) & 0xff) / 255.f;
+    clr.b = ((in)&0xff) / 255.f;
+}
+
+} // end namespace Assimp
+
+#endif // !! INCLUDED_AI_IRRSHARED_H