//-----------------------------------------------------------------------------
//
// ImageLib Sources
// Copyright (C) 2000-2002 by Denton Woods
// Last modified: 02/19/2002 <--Y2K Compliant! =]
//
// Filename: IL/devil_internal_exports.h
//
// Description: Internal stuff for DevIL (IL, ILU and ILUT)
//
//-----------------------------------------------------------------------------

#ifndef IL_EXPORTS_H
#define IL_EXPORTS_H

#include "IL/il.h"

#ifdef __cplusplus
extern "C" {
#endif

#define IL_MAX(a,b) (((a) > (b)) ? (a) : (b))
#define IL_MIN(a,b) (((a) < (b)) ? (a) : (b))


// Basic Palette struct
typedef struct ILpal
{
	ILubyte* Palette; // the image palette (if any)
	ILuint   PalSize; // size of the palette (in bytes)
	ILenum   PalType; // the palette types below (0x0500 range)
} ILpal;


// The Fundamental Image struct
typedef struct ILimage
{
	ILuint          Width;       // the image's width
	ILuint          Height;      // the image's height
	ILuint          Depth;       // the image's depth
	ILubyte         Bpp;         // bytes per pixel (now number of channels)
	ILubyte         Bpc;         // bytes per channel
	ILuint          Bps;         // bytes per scanline (components for IL)
	ILubyte*        Data;        // the image data
	ILuint          SizeOfData;  // the total size of the data (in bytes)
	ILuint          SizeOfPlane; // SizeOfData in a 2d image, size of each plane slice in a 3d image (in bytes)
	ILenum          Format;      // image format (in IL enum style)
	ILenum          Type;        // image type (in IL enum style)
	ILenum          Origin;      // origin of the image
	ILpal           Pal;         // palette details
	ILuint          Duration;    // length of the time to display this "frame"
	ILenum          CubeFlags;   // cube map flags for sides present in chain
	struct ILimage* Mipmaps;     // mipmapped versions of this image terminated by a NULL - usu. NULL
	struct ILimage* Next;        // next image in the chain - usu. NULL
	struct ILimage* Layers;      // subsequent layers in the chain - usu. NULL
	ILuint          NumNext;     // number of images following this one (0 when not parent)
	ILuint	      NumMips;     // number of mipmaps (0 when not parent)
	ILuint          NumLayers;   // number of layers (0 when not parent)
	ILuint*         AnimList;    // animation list
	ILuint          AnimSize;    // animation list size
	ILvoid*         Profile;     // colour profile
	ILuint          ProfileSize; // colour profile size
	ILuint          OffX, OffY;  // offset of the image
	ILubyte*        DxtcData;    // compressed data
	ILenum          DxtcFormat;  // compressed data format
	ILuint          DxtcSize;    // compressed data size
} ILimage;


// Memory functions
ILAPI ILvoid* ILAPIENTRY ialloc(ILuint Size);
ILAPI ILvoid  ILAPIENTRY ifree(ILvoid *Ptr);
ILAPI ILvoid* ILAPIENTRY icalloc(ILuint Size, ILuint Num);
#ifdef ALTIVEC_GCC
ILAPI ILvoid* ILAPIENTRY ivec_align_buffer(ILvoid *buffer, ILuint size);
#endif

// Internal library functions in IL
ILAPI ILimage* ILAPIENTRY ilGetCurImage(ILvoid);
ILAPI ILvoid   ILAPIENTRY ilSetCurImage(ILimage *Image);
ILAPI ILvoid   ILAPIENTRY ilSetError(ILenum Error);
ILAPI ILvoid   ILAPIENTRY ilSetPal(ILpal *Pal);

//
// Utility functions
//
ILAPI ILubyte ILAPIENTRY ilGetBppFormat(ILenum Format);
ILAPI ILenum  ILAPIENTRY ilGetFormatBpp(ILubyte Bpp);
ILAPI ILubyte ILAPIENTRY ilGetBpcType(ILenum Type);
ILAPI ILenum  ILAPIENTRY ilGetTypeBpc(ILubyte Bpc);
ILAPI ILubyte ILAPIENTRY ilGetBppPal(ILenum PalType);
ILAPI ILenum  ILAPIENTRY ilGetPalBaseType(ILenum PalType);
ILAPI ILuint  ILAPIENTRY ilNextPower2(ILuint Num);
ILAPI ILenum  ILAPIENTRY ilTypeFromExt(const ILstring FileName);
ILAPI ILvoid  ILAPIENTRY ilReplaceCurImage(ILimage *Image);

//
// Image functions
//
ILAPI ILvoid    ILAPIENTRY iBindImageTemp  (ILvoid);
ILAPI ILboolean ILAPIENTRY ilClearImage_   (ILimage *Image);
ILAPI ILvoid    ILAPIENTRY ilCloseImage    (ILimage *Image);
ILAPI ILvoid    ILAPIENTRY ilClosePal      (ILpal *Palette);
ILAPI ILpal*    ILAPIENTRY iCopyPal        (ILvoid);
ILAPI ILboolean ILAPIENTRY ilCopyImageAttr (ILimage *Dest, ILimage *Src);
ILAPI ILimage*  ILAPIENTRY ilCopyImage_    (ILimage *Src);
ILAPI ILvoid    ILAPIENTRY ilGetClear      (ILvoid *Colours, ILenum Format, ILenum Type);
ILAPI ILuint    ILAPIENTRY ilGetCurName    (ILvoid);
ILAPI ILboolean ILAPIENTRY ilIsValidPal    (ILpal *Palette);
ILAPI ILimage*  ILAPIENTRY ilNewImage      (ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp, ILubyte Bpc);
ILAPI ILimage*  ILAPIENTRY ilNewImageFull  (ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp, ILenum Format, ILenum Type, ILvoid *Data);
ILAPI ILboolean ILAPIENTRY ilInitImage     (ILimage *Image, ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp, ILenum Format, ILenum Type, ILvoid *Data);
ILAPI ILboolean ILAPIENTRY ilResizeImage   (ILimage *Image, ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp, ILubyte Bpc);
ILAPI ILboolean ILAPIENTRY ilTexImage_     (ILimage *Image, ILuint Width, ILuint Height, ILuint Depth, ILubyte Bpp, ILenum Format, ILenum Type, ILvoid *Data);
ILAPI ILboolean ILAPIENTRY ilTexSubImage_  (ILimage *Image, ILvoid *Data);
ILAPI ILvoid*   ILAPIENTRY ilConvertBuffer (ILuint SizeOfData, ILenum SrcFormat, ILenum DestFormat, ILenum SrcType, ILenum DestType, ILvoid *Buffer);
ILAPI ILimage*  ILAPIENTRY iConvertImage   (ILimage *Image, ILenum DestFormat, ILenum DestType);
ILAPI ILpal*    ILAPIENTRY iConvertPal     (ILpal *Pal, ILenum DestFormat);
ILAPI ILubyte*  ILAPIENTRY iGetFlipped     (ILimage *Image);


// Internal library functions in ILU
ILAPI ILimage* ILAPIENTRY iluRotate_(ILimage *Image, ILfloat Angle);
ILAPI ILimage* ILAPIENTRY iluRotate3D_(ILimage *Image, ILfloat x, ILfloat y, ILfloat z, ILfloat Angle);
ILAPI ILimage* ILAPIENTRY iluScale_(ILimage *Image, ILuint Width, ILuint Height, ILuint Depth);

#ifdef __cplusplus
}
#endif

#endif//IL_EXPORTS_H
