/*
Free Asset Import Library (ASSIMP)
----------------------------------------------------------------------

Copyright (c) 2006-2008, ASSIMP Development 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 Development 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 Defines the helper data structures for importing MD2 files  */
#ifndef AI_MD2FILEHELPER_H_INC
#define AI_MD2FILEHELPER_H_INC

#include <string>
#include <vector>
#include <sstream>

#include "../include/aiTypes.h"
#include "../include/aiMesh.h"
#include "../include/aiAnim.h"

#if defined(_MSC_VER) ||  defined(__BORLANDC__) ||	defined (__BCPLUSPLUS__)
#	pragma pack(push,1)
#	define PACK_STRUCT
#elif defined( __GNUC__ )
#	define PACK_STRUCT	__attribute__((packed))
#else
#	error Compiler not supported
#endif


namespace Assimp
{
//http://linux.ucla.edu/~phaethon/q3/formats/md2-schoenblum.html
namespace MD2
{

#define AI_MD2_MAGIC_NUMBER_BE	'IDP2'
#define AI_MD2_MAGIC_NUMBER_LE	'2PDI'

// common limitations
#define AI_MD2_VERSION			15
#define AI_MD2_MAXQPATH			64
#define AI_MD2_MAX_FRAMES		512
#define AI_MD2_MAX_SKINS		32	
#define AI_MD2_MAX_VERTS		2048	
#define AI_MD2_MAX_TRIANGLES	4096	

// ---------------------------------------------------------------------------
/**	\brief Data structure for the MD2 main header
 */
// ---------------------------------------------------------------------------
struct Header
{
	int32_t magic; 
	int32_t version; 
	int32_t skinWidth; 
	int32_t skinHeight; 
	int32_t frameSize; 
	int32_t numSkins; 
	int32_t numVertices; 
	int32_t numTexCoords; 
	int32_t numTriangles; 
	int32_t numGlCommands; 
	int32_t numFrames; 
	int32_t offsetSkins; 
	int32_t offsetTexCoords; 
	int32_t offsetTriangles; 
	int32_t offsetFrames; 
	int32_t offsetGlCommands; 
	int32_t offsetEnd; 

} PACK_STRUCT;


// ---------------------------------------------------------------------------
/**	\brief Data structure for a MD2 OpenGl draw command
 */
// ---------------------------------------------------------------------------
struct GLCommand
{
   float s, t;
   uint32_t vertexIndex;
} PACK_STRUCT;

// ---------------------------------------------------------------------------
/**	\brief Data structure for a MD2 triangle
 */
// ---------------------------------------------------------------------------
struct Triangle
{
	uint16_t vertexIndices[3];
	uint16_t textureIndices[3];
} PACK_STRUCT;

// ---------------------------------------------------------------------------
/**	\brief Data structure for a MD2 vertex
 */
// ---------------------------------------------------------------------------
struct Vertex
{
	uint8_t vertex[3];
	uint8_t lightNormalIndex;
} PACK_STRUCT;

// ---------------------------------------------------------------------------
/**	\brief Data structure for a MD2 frame
 */
// ---------------------------------------------------------------------------
struct Frame
{
	float scale[3];
	float translate[3];
	char name[16];
	Vertex vertices[1];
} PACK_STRUCT;

// ---------------------------------------------------------------------------
/**	\brief Data structure for a MD2 texture coordinate
 */
// ---------------------------------------------------------------------------
struct TexCoord
{
	int16_t s;
	int16_t t;
} PACK_STRUCT;

// ---------------------------------------------------------------------------
/**	\brief Data structure for a MD2 skin
 */
// ---------------------------------------------------------------------------
struct Skin
{
	char name[AI_MD2_MAXQPATH];              /* texture file name */
} PACK_STRUCT;

// reset packing to the original value
#if defined(_MSC_VER) ||  defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
#	pragma pack( pop )
#endif
#undef PACK_STRUCT

};
};

#endif // !! include guard