Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/COBJMeshFileLoader.h

@@ -0,0 +1,122 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#ifndef __C_OBJ_MESH_FILE_LOADER_H_INCLUDED__
+#define __C_OBJ_MESH_FILE_LOADER_H_INCLUDED__
+
+#include "IMeshLoader.h"
+#include "IFileSystem.h"
+#include "ISceneManager.h"
+#include "irrString.h"
+#include "SMeshBuffer.h"
+#include "irrMap.h"
+
+namespace irr
+{
+namespace scene
+{
+
+//! Meshloader capable of loading obj meshes.
+class COBJMeshFileLoader : public IMeshLoader
+{
+public:
+
+	//! Constructor
+	COBJMeshFileLoader(scene::ISceneManager* smgr, io::IFileSystem* fs);
+
+	//! destructor
+	virtual ~COBJMeshFileLoader();
+
+	//! returns true if the file maybe is able to be loaded by this class
+	//! based on the file extension (e.g. ".obj")
+	virtual bool isALoadableFileExtension(const io::path& filename) const _IRR_OVERRIDE_;
+
+	//! creates/loads an animated mesh from the file.
+	//! \return Pointer to the created mesh. Returns 0 if loading failed.
+	//! If you no longer need the mesh, you should call IAnimatedMesh::drop().
+	//! See IReferenceCounted::drop() for more information.
+	virtual IAnimatedMesh* createMesh(io::IReadFile* file) _IRR_OVERRIDE_;
+
+private:
+
+	struct SObjMtl
+	{
+		SObjMtl() : Meshbuffer(0), Bumpiness (1.0f), Illumination(0),
+			RecalculateNormals(false)
+		{
+			Meshbuffer = new SMeshBuffer();
+			Meshbuffer->Material.Shininess = 0.0f;
+			Meshbuffer->Material.AmbientColor = video::SColorf(0.2f, 0.2f, 0.2f, 1.0f).toSColor();
+			Meshbuffer->Material.DiffuseColor = video::SColorf(0.8f, 0.8f, 0.8f, 1.0f).toSColor();
+			Meshbuffer->Material.SpecularColor = video::SColorf(1.0f, 1.0f, 1.0f, 1.0f).toSColor();
+		}
+
+		SObjMtl(const SObjMtl& o)
+			: Name(o.Name), Group(o.Group),
+			Bumpiness(o.Bumpiness), Illumination(o.Illumination),
+			RecalculateNormals(false)
+		{
+			Meshbuffer = new SMeshBuffer();
+			Meshbuffer->Material = o.Meshbuffer->Material;
+		}
+
+		core::map<video::S3DVertex, int> VertMap;
+		scene::SMeshBuffer *Meshbuffer;
+		core::stringc Name;
+		core::stringc Group;
+		f32 Bumpiness;
+		c8 Illumination;
+		bool RecalculateNormals;
+	};
+
+	// helper method for material reading
+	const c8* readTextures(const c8* bufPtr, const c8* const bufEnd, SObjMtl* currMaterial, const io::path& relPath);
+
+	// returns a pointer to the first printable character available in the buffer
+	const c8* goFirstWord(const c8* buf, const c8* const bufEnd, bool acrossNewlines=true);
+	// returns a pointer to the first printable character after the first non-printable
+	const c8* goNextWord(const c8* buf, const c8* const bufEnd, bool acrossNewlines=true);
+	// returns a pointer to the next printable character after the first line break
+	const c8* goNextLine(const c8* buf, const c8* const bufEnd);
+	// copies the current word from the inBuf to the outBuf
+	u32 copyWord(c8* outBuf, const c8* inBuf, u32 outBufLength, const c8* const pBufEnd);
+	// copies the current line from the inBuf to the outBuf
+	core::stringc copyLine(const c8* inBuf, const c8* const bufEnd);
+
+	// combination of goNextWord followed by copyWord
+	const c8* goAndCopyNextWord(c8* outBuf, const c8* inBuf, u32 outBufLength, const c8* const pBufEnd);
+
+	//! Read the material from the given file
+	void readMTL(const c8* fileName, const io::path& relPath);
+
+	//! Find and return the material with the given name
+	SObjMtl* findMtl(const core::stringc& mtlName, const core::stringc& grpName);
+
+	//! Read RGB color
+	const c8* readColor(const c8* bufPtr, video::SColor& color, const c8* const pBufEnd);
+	//! Read 3d vector of floats
+	const c8* readVec3(const c8* bufPtr, core::vector3df& vec, const c8* const pBufEnd);
+	//! Read 2d vector of floats
+	const c8* readUV(const c8* bufPtr, core::vector2df& vec, const c8* const pBufEnd);
+	//! Read boolean value represented as 'on' or 'off'
+	const c8* readBool(const c8* bufPtr, bool& tf, const c8* const bufEnd);
+
+	// reads and convert to integer the vertex indices in a line of obj file's face statement
+	// -1 for the index if it doesn't exist
+	// indices are changed to 0-based index instead of 1-based from the obj file
+	bool retrieveVertexIndices(c8* vertexData, s32* idx, const c8* bufEnd, u32 vbsize, u32 vtsize, u32 vnsize);
+
+	void cleanUp();
+
+	scene::ISceneManager* SceneManager;
+	io::IFileSystem* FileSystem;
+
+	core::array<SObjMtl*> Materials;
+};
+
+} // end namespace scene
+} // end namespace irr
+
+#endif
+