libogre-1.9-dev 1.9.0+dfsg1-7 / usr / include / OGRE / OgreMeshSerializerImpl.h

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/*
-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2013 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-----------------------------------------------------------------------------
*/

#ifndef __MeshSerializerImpl_H__
#define __MeshSerializerImpl_H__

#include "OgrePrerequisites.h"
#include "OgreString.h"
#include "OgreSerializer.h"
#include "OgreMaterial.h"
#include "OgreMesh.h"
#include "OgreEdgeListBuilder.h"

namespace Ogre {
	
	class MeshSerializerListener;
    class LodStrategy;

	/** \addtogroup Core
	*  @{
	*/
	/** \addtogroup Resources
	*  @{
	*/
	/** Internal implementation of Mesh reading / writing for the latest version of the
    .mesh format.
    @remarks
    In order to maintain compatibility with older versions of the .mesh format, there
    will be alternative subclasses of this class to load older versions, whilst this class
    will remain to load the latest version.

	 @note
		This mesh format was used from Ogre v1.8.

    */
    class _OgrePrivate MeshSerializerImpl : public Serializer
    {
    public:
        MeshSerializerImpl();
        virtual ~MeshSerializerImpl();
        /** Exports a mesh to the file specified. 
        @remarks
        This method takes an externally created Mesh object, and exports both it
        and optionally the Materials it uses to a .mesh file.
        @param pMesh Pointer to the Mesh to export
        @param stream The destination stream
		@param endianMode The endian mode for the written file
        */
        void exportMesh(const Mesh* pMesh, DataStreamPtr stream,
			Endian endianMode = ENDIAN_NATIVE);

        /** Imports Mesh and (optionally) Material data from a .mesh file DataStream.
        @remarks
        This method imports data from a DataStream opened from a .mesh file and places it's
        contents into the Mesh object which is passed in. 
        @param stream The DataStream holding the .mesh data. Must be initialised (pos at the start of the buffer).
        @param pDest Pointer to the Mesh object which will receive the data. Should be blank already.
        */
        void importMesh(DataStreamPtr& stream, Mesh* pDest, MeshSerializerListener *listener);

    protected:

        // Internal methods
        virtual void writeSubMeshNameTable(const Mesh* pMesh);
        virtual void writeMesh(const Mesh* pMesh);
        virtual void writeSubMesh(const SubMesh* s);
        virtual void writeSubMeshOperation(const SubMesh* s);
        virtual void writeSubMeshTextureAliases(const SubMesh* s);
        virtual void writeGeometry(const VertexData* pGeom);
        virtual void writeSkeletonLink(const String& skelName);
        virtual void writeMeshBoneAssignment(const VertexBoneAssignment& assign);
        virtual void writeSubMeshBoneAssignment(const VertexBoneAssignment& assign);
        virtual void writeLodInfo(const Mesh* pMesh);
        virtual void writeLodSummary(unsigned short numLevels, bool manual, const LodStrategy *strategy);
        virtual void writeLodUsageManual(const MeshLodUsage& usage);
        virtual void writeLodUsageGenerated(const Mesh* pMesh, const MeshLodUsage& usage, unsigned short lodNum);
        virtual void writeBoundsInfo(const Mesh* pMesh);
        virtual void writeEdgeList(const Mesh* pMesh);
		virtual void writeAnimations(const Mesh* pMesh);
		virtual void writeAnimation(const Animation* anim);
		virtual void writePoses(const Mesh* pMesh);
		virtual void writePose(const Pose* pose);
		virtual void writeAnimationTrack(const VertexAnimationTrack* track);
		virtual void writeMorphKeyframe(const VertexMorphKeyFrame* kf, size_t vertexCount);
		virtual void writePoseKeyframe(const VertexPoseKeyFrame* kf);
		virtual void writePoseKeyframePoseRef(const VertexPoseKeyFrame::PoseRef& poseRef);
        virtual void writeExtremes(const Mesh *pMesh);
        virtual void writeSubMeshExtremes(unsigned short idx, const SubMesh* s);

        virtual size_t calcMeshSize(const Mesh* pMesh);
        virtual size_t calcSubMeshSize(const SubMesh* pSub);
        virtual size_t calcGeometrySize(const VertexData* pGeom);
        virtual size_t calcSkeletonLinkSize(const String& skelName);
        virtual size_t calcBoneAssignmentSize(void);
        virtual size_t calcSubMeshOperationSize(const SubMesh* pSub);
        virtual size_t calcSubMeshNameTableSize(const Mesh* pMesh);
        virtual size_t calcEdgeListSize(const Mesh* pMesh);
        virtual size_t calcEdgeListLodSize(const EdgeData* data, bool isManual);
        virtual size_t calcEdgeGroupSize(const EdgeData::EdgeGroup& group);
		virtual size_t calcPosesSize(const Mesh* pMesh);
		virtual size_t calcPoseSize(const Pose* pose);
		virtual size_t calcAnimationsSize(const Mesh* pMesh);
		virtual size_t calcAnimationSize(const Animation* anim);
		virtual size_t calcAnimationTrackSize(const VertexAnimationTrack* track);
		virtual size_t calcMorphKeyframeSize(const VertexMorphKeyFrame* kf, size_t vertexCount);
		virtual size_t calcPoseKeyframeSize(const VertexPoseKeyFrame* kf);
		virtual size_t calcPoseKeyframePoseRefSize(void);
		virtual size_t calcPoseVertexSize(const Pose* pose);
        virtual size_t calcSubMeshTextureAliasesSize(const SubMesh* pSub);


        virtual void readTextureLayer(DataStreamPtr& stream, Mesh* pMesh, MaterialPtr& pMat);
        virtual void readSubMeshNameTable(DataStreamPtr& stream, Mesh* pMesh);
        virtual void readMesh(DataStreamPtr& stream, Mesh* pMesh, MeshSerializerListener *listener);
        virtual void readSubMesh(DataStreamPtr& stream, Mesh* pMesh, MeshSerializerListener *listener);
        virtual void readSubMeshOperation(DataStreamPtr& stream, Mesh* pMesh, SubMesh* sub);
        virtual void readSubMeshTextureAlias(DataStreamPtr& stream, Mesh* pMesh, SubMesh* sub);
        virtual void readGeometry(DataStreamPtr& stream, Mesh* pMesh, VertexData* dest);
        virtual void readGeometryVertexDeclaration(DataStreamPtr& stream, Mesh* pMesh, VertexData* dest);
        virtual void readGeometryVertexElement(DataStreamPtr& stream, Mesh* pMesh, VertexData* dest);
        virtual void readGeometryVertexBuffer(DataStreamPtr& stream, Mesh* pMesh, VertexData* dest);

        virtual void readSkeletonLink(DataStreamPtr& stream, Mesh* pMesh, MeshSerializerListener *listener);
        virtual void readMeshBoneAssignment(DataStreamPtr& stream, Mesh* pMesh);
        virtual void readSubMeshBoneAssignment(DataStreamPtr& stream, Mesh* pMesh, 
            SubMesh* sub);
        virtual void readMeshLodInfo(DataStreamPtr& stream, Mesh* pMesh);
        virtual void readMeshLodUsageManual(DataStreamPtr& stream, Mesh* pMesh, 
            unsigned short lodNum, MeshLodUsage& usage);
        virtual void readMeshLodUsageGenerated(DataStreamPtr& stream, Mesh* pMesh, 
            unsigned short lodNum, MeshLodUsage& usage);
        virtual void readBoundsInfo(DataStreamPtr& stream, Mesh* pMesh);
        virtual void readEdgeList(DataStreamPtr& stream, Mesh* pMesh);
        virtual void readEdgeListLodInfo(DataStreamPtr& stream, EdgeData* edgeData);
		virtual void readPoses(DataStreamPtr& stream, Mesh* pMesh);
		virtual void readPose(DataStreamPtr& stream, Mesh* pMesh);
		virtual void readAnimations(DataStreamPtr& stream, Mesh* pMesh);
		virtual void readAnimation(DataStreamPtr& stream, Mesh* pMesh);
		virtual void readAnimationTrack(DataStreamPtr& stream, Animation* anim, 
			Mesh* pMesh);
		virtual void readMorphKeyFrame(DataStreamPtr& stream, VertexAnimationTrack* track);
		virtual void readPoseKeyFrame(DataStreamPtr& stream, VertexAnimationTrack* track);
		virtual void readExtremes(DataStreamPtr& stream, Mesh *pMesh);


        /// Flip an entire vertex buffer from little endian
        virtual void flipFromLittleEndian(void* pData, size_t vertexCount, size_t vertexSize, const VertexDeclaration::VertexElementList& elems);
        /// Flip an entire vertex buffer to little endian
        virtual void flipToLittleEndian(void* pData, size_t vertexCount, size_t vertexSize, const VertexDeclaration::VertexElementList& elems);
        /// Flip the endianness of an entire vertex buffer, passed in as a 
        /// pointer to locked or temporary memory 
        virtual void flipEndian(void* pData, size_t vertexCount, size_t vertexSize, const VertexDeclaration::VertexElementList& elems);



    };

    /** Class for providing backwards-compatibility for loading version 1.41 of the .mesh format. 
	 This mesh format was used from Ogre v1.7.
	 */
    class _OgrePrivate MeshSerializerImpl_v1_41 : public MeshSerializerImpl
    {
    public:
        MeshSerializerImpl_v1_41();
        ~MeshSerializerImpl_v1_41();
    protected:
		void writeMorphKeyframe(const VertexMorphKeyFrame* kf, size_t vertexCount);
		void readMorphKeyFrame(DataStreamPtr& stream, VertexAnimationTrack* track);
		void writePose(const Pose* pose);
		void readPose(DataStreamPtr& stream, Mesh* pMesh);
		size_t calcMorphKeyframeSize(const VertexMorphKeyFrame* kf, size_t vertexCount);
		size_t calcPoseSize(const Pose* pose);
		size_t calcPoseVertexSize(void);
    };

    /** Class for providing backwards-compatibility for loading version 1.4 of the .mesh format. 
	 This mesh format was used from Ogre v1.4.
	 */
    class _OgrePrivate MeshSerializerImpl_v1_4 : public MeshSerializerImpl_v1_41
    {
    public:
        MeshSerializerImpl_v1_4();
        ~MeshSerializerImpl_v1_4();
    protected:
        virtual void writeLodSummary(unsigned short numLevels, bool manual, const LodStrategy *strategy);
		virtual void writeLodUsageManual(const MeshLodUsage& usage);
		virtual void writeLodUsageGenerated(const Mesh* pMesh, const MeshLodUsage& usage,
									unsigned short lodNum);

        virtual void readMeshLodInfo(DataStreamPtr& stream, Mesh* pMesh);
    };

    /** Class for providing backwards-compatibility for loading version 1.3 of the .mesh format. 
	 This mesh format was used from Ogre v1.0 (and some pre-releases)
	 */
    class _OgrePrivate MeshSerializerImpl_v1_3 : public MeshSerializerImpl_v1_4
    {
    public:
        MeshSerializerImpl_v1_3();
        ~MeshSerializerImpl_v1_3();
    protected:
        virtual void readEdgeListLodInfo(DataStreamPtr& stream, EdgeData* edgeData);

        /// Reorganise triangles of the edge list to group by vertex set
        virtual void reorganiseTriangles(EdgeData* edgeData);
		
		virtual void writeEdgeList(const Mesh* pMesh);
    };

    /** Class for providing backwards-compatibility for loading version 1.2 of the .mesh format. 
	 This is a LEGACY FORMAT that pre-dates version Ogre 1.0
	 */
    class _OgrePrivate MeshSerializerImpl_v1_2 : public MeshSerializerImpl_v1_3
    {
    public:
        MeshSerializerImpl_v1_2();
        ~MeshSerializerImpl_v1_2();
    protected:
        virtual void readMesh(DataStreamPtr& stream, Mesh* pMesh, MeshSerializerListener *listener);
        virtual void readGeometry(DataStreamPtr& stream, Mesh* pMesh, VertexData* dest);
        virtual void readGeometryPositions(unsigned short bindIdx, DataStreamPtr& stream, 
            Mesh* pMesh, VertexData* dest);
        virtual void readGeometryNormals(unsigned short bindIdx, DataStreamPtr& stream, 
            Mesh* pMesh, VertexData* dest);
        virtual void readGeometryColours(unsigned short bindIdx, DataStreamPtr& stream, 
            Mesh* pMesh, VertexData* dest);
        virtual void readGeometryTexCoords(unsigned short bindIdx, DataStreamPtr& stream, 
            Mesh* pMesh, VertexData* dest, unsigned short set);
    };

    /** Class for providing backwards-compatibility for loading version 1.1 of the .mesh format. 
	 This is a LEGACY FORMAT that pre-dates version Ogre 1.0
	 */
    class _OgrePrivate MeshSerializerImpl_v1_1 : public MeshSerializerImpl_v1_2
    {
    public:
        MeshSerializerImpl_v1_1();
        ~MeshSerializerImpl_v1_1();
    protected:
        void readGeometryTexCoords(unsigned short bindIdx, DataStreamPtr& stream, 
            Mesh* pMesh, VertexData* dest, unsigned short set);
    };

	/** @} */
	/** @} */

}

#endif

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