/*==========================================================================;
 *
 *  Copyright (C) Microsoft Corporation.  All Rights Reserved.
 *
 *  File:   d3dtypes.h
 *  Content:    Direct3D types include file
 *
 ***************************************************************************/

#ifndef _D3DTYPES_H_
#define _D3DTYPES_H_

#ifndef DIRECT3D_VERSION
#define DIRECT3D_VERSION         0x0700
#endif

#if (DIRECT3D_VERSION >= 0x0800)
#pragma message("should not include d3dtypes.h when compiling for DX8 or newer interfaces")
#endif

#include <windows.h>

#include <float.h>
#include "ddraw.h"

#pragma warning(disable:4201) // anonymous unions warning
#pragma pack(4)


/* D3DVALUE is the fundamental Direct3D fractional data type */

#define D3DVALP(val, prec) ((float)(val))
#define D3DVAL(val) ((float)(val))

#ifndef DX_SHARED_DEFINES

/*
 * This definition is shared with other DirectX components whose header files
 * might already have defined it. Therefore, we don't define this type if
 * someone else already has (as indicated by the definition of
 * DX_SHARED_DEFINES). We don't set DX_SHARED_DEFINES here as there are
 * other types in this header that are also shared. The last of these
 * shared defines in this file will set DX_SHARED_DEFINES.
 */
typedef float D3DVALUE, *LPD3DVALUE;

#endif /* DX_SHARED_DEFINES */

#define D3DDivide(a, b)    (float)((double) (a) / (double) (b))
#define D3DMultiply(a, b)    ((a) * (b))

typedef LONG D3DFIXED;

#ifndef RGB_MAKE
/*
 * Format of CI colors is
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |    alpha      |         color index           |   fraction    |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 */
#define CI_GETALPHA(ci)    ((ci) >> 24)
#define CI_GETINDEX(ci)    (((ci) >> 8) & 0xffff)
#define CI_GETFRACTION(ci) ((ci) & 0xff)
#define CI_ROUNDINDEX(ci)  CI_GETINDEX((ci) + 0x80)
#define CI_MASKALPHA(ci)   ((ci) & 0xffffff)
#define CI_MAKE(a, i, f)    (((a) << 24) | ((i) << 8) | (f))

/*
 * Format of RGBA colors is
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |    alpha      |      red      |     green     |     blue      |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 */
#define RGBA_GETALPHA(rgb)      ((rgb) >> 24)
#define RGBA_GETRED(rgb)        (((rgb) >> 16) & 0xff)
#define RGBA_GETGREEN(rgb)      (((rgb) >> 8) & 0xff)
#define RGBA_GETBLUE(rgb)       ((rgb) & 0xff)
#define RGBA_MAKE(r, g, b, a)   ((D3DCOLOR) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b)))

/* D3DRGB and D3DRGBA may be used as initialisers for D3DCOLORs
 * The float values must be in the range 0..1
 */
#define D3DRGB(r, g, b) \
    (0xff000000L | ( ((long)((r) * 255)) << 16) | (((long)((g) * 255)) << 8) | (long)((b) * 255))
#define D3DRGBA(r, g, b, a) \
    (   (((long)((a) * 255)) << 24) | (((long)((r) * 255)) << 16) \
    |   (((long)((g) * 255)) << 8) | (long)((b) * 255) \
    )

/*
 * Format of RGB colors is
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |    ignored    |      red      |     green     |     blue      |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 */
#define RGB_GETRED(rgb)         (((rgb) >> 16) & 0xff)
#define RGB_GETGREEN(rgb)       (((rgb) >> 8) & 0xff)
#define RGB_GETBLUE(rgb)        ((rgb) & 0xff)
#define RGBA_SETALPHA(rgba, x) (((x) << 24) | ((rgba) & 0x00ffffff))
#define RGB_MAKE(r, g, b)       ((D3DCOLOR) (((r) << 16) | ((g) << 8) | (b)))
#define RGBA_TORGB(rgba)       ((D3DCOLOR) ((rgba) & 0xffffff))
#define RGB_TORGBA(rgb)        ((D3DCOLOR) ((rgb) | 0xff000000))

#endif

/*
 * Flags for Enumerate functions
 */

/*
 * Stop the enumeration
 */
#define D3DENUMRET_CANCEL                        DDENUMRET_CANCEL

/*
 * Continue the enumeration
 */
#define D3DENUMRET_OK                            DDENUMRET_OK

typedef HRESULT (CALLBACK* LPD3DVALIDATECALLBACK)(LPVOID lpUserArg, DWORD dwOffset);
typedef HRESULT (CALLBACK* LPD3DENUMTEXTUREFORMATSCALLBACK)(LPDDSURFACEDESC lpDdsd, LPVOID lpContext);
typedef HRESULT (CALLBACK* LPD3DENUMPIXELFORMATSCALLBACK)(LPDDPIXELFORMAT lpDDPixFmt, LPVOID lpContext);

#ifndef DX_SHARED_DEFINES

/*
 * This definition is shared with other DirectX components whose header files
 * might already have defined it. Therefore, we don't define this type if
 * someone else already has (as indicated by the definition of
 * DX_SHARED_DEFINES). We don't set DX_SHARED_DEFINES here as there are
 * other types in this header that are also shared. The last of these
 * shared defines in this file will set DX_SHARED_DEFINES.
 */
#ifndef D3DCOLOR_DEFINED
typedef DWORD D3DCOLOR;
#define D3DCOLOR_DEFINED
#endif
typedef DWORD *LPD3DCOLOR;

#endif /* DX_SHARED_DEFINES */

typedef DWORD D3DMATERIALHANDLE, *LPD3DMATERIALHANDLE;
typedef DWORD D3DTEXTUREHANDLE, *LPD3DTEXTUREHANDLE;
typedef DWORD D3DMATRIXHANDLE, *LPD3DMATRIXHANDLE;

#ifndef D3DCOLORVALUE_DEFINED
typedef struct _D3DCOLORVALUE {
    union {
    D3DVALUE r;
    D3DVALUE dvR;
    };
    union {
    D3DVALUE g;
    D3DVALUE dvG;
    };
    union {
    D3DVALUE b;
    D3DVALUE dvB;
    };
    union {
    D3DVALUE a;
    D3DVALUE dvA;
    };
} D3DCOLORVALUE;
#define D3DCOLORVALUE_DEFINED
#endif
typedef struct _D3DCOLORVALUE *LPD3DCOLORVALUE;

#ifndef D3DRECT_DEFINED
typedef struct _D3DRECT {
    union {
    LONG x1;
    LONG lX1;
    };
    union {
    LONG y1;
    LONG lY1;
    };
    union {
    LONG x2;
    LONG lX2;
    };
    union {
    LONG y2;
    LONG lY2;
    };
} D3DRECT;
#define D3DRECT_DEFINED
#endif
typedef struct _D3DRECT *LPD3DRECT;

#ifndef DX_SHARED_DEFINES

/*
 * This definition is shared with other DirectX components whose header files
 * might already have defined it. Therefore, we don't define this type if
 * someone else already has (as indicated by the definition of
 * DX_SHARED_DEFINES).
 */

#ifndef D3DVECTOR_DEFINED
typedef struct _D3DVECTOR {
    union {
    D3DVALUE x;
    D3DVALUE dvX;
    };
    union {
    D3DVALUE y;
    D3DVALUE dvY;
    };
    union {
    D3DVALUE z;
    D3DVALUE dvZ;
    };
#if(DIRECT3D_VERSION >= 0x0500)
#if (defined __cplusplus) && (defined D3D_OVERLOADS)

public:

    // =====================================
    // Constructors
    // =====================================

    _D3DVECTOR() { }
    _D3DVECTOR(D3DVALUE f);
    _D3DVECTOR(D3DVALUE _x, D3DVALUE _y, D3DVALUE _z);
    _D3DVECTOR(const D3DVALUE f[3]);

    // =====================================
    // Access grants
    // =====================================

    const D3DVALUE&operator[](int i) const;
    D3DVALUE&operator[](int i);

    // =====================================
    // Assignment operators
    // =====================================

    _D3DVECTOR& operator += (const _D3DVECTOR& v);
    _D3DVECTOR& operator -= (const _D3DVECTOR& v);
    _D3DVECTOR& operator *= (const _D3DVECTOR& v);
    _D3DVECTOR& operator /= (const _D3DVECTOR& v);
    _D3DVECTOR& operator *= (D3DVALUE s);
    _D3DVECTOR& operator /= (D3DVALUE s);

    // =====================================
    // Unary operators
    // =====================================

    friend _D3DVECTOR operator + (const _D3DVECTOR& v);
    friend _D3DVECTOR operator - (const _D3DVECTOR& v);


    // =====================================
    // Binary operators
    // =====================================

    // Addition and subtraction
        friend _D3DVECTOR operator + (const _D3DVECTOR& v1, const _D3DVECTOR& v2);
        friend _D3DVECTOR operator - (const _D3DVECTOR& v1, const _D3DVECTOR& v2);
    // Scalar multiplication and division
        friend _D3DVECTOR operator * (const _D3DVECTOR& v, D3DVALUE s);
        friend _D3DVECTOR operator * (D3DVALUE s, const _D3DVECTOR& v);
        friend _D3DVECTOR operator / (const _D3DVECTOR& v, D3DVALUE s);
    // Memberwise multiplication and division
        friend _D3DVECTOR operator * (const _D3DVECTOR& v1, const _D3DVECTOR& v2);
        friend _D3DVECTOR operator / (const _D3DVECTOR& v1, const _D3DVECTOR& v2);

    // Vector dominance
        friend int operator < (const _D3DVECTOR& v1, const _D3DVECTOR& v2);
        friend int operator <= (const _D3DVECTOR& v1, const _D3DVECTOR& v2);

    // Bitwise equality
        friend int operator == (const _D3DVECTOR& v1, const _D3DVECTOR& v2);

    // Length-related functions
        friend D3DVALUE SquareMagnitude (const _D3DVECTOR& v);
        friend D3DVALUE Magnitude (const _D3DVECTOR& v);

    // Returns vector with same direction and unit length
        friend _D3DVECTOR Normalize (const _D3DVECTOR& v);

    // Return min/max component of the input vector
        friend D3DVALUE Min (const _D3DVECTOR& v);
        friend D3DVALUE Max (const _D3DVECTOR& v);

    // Return memberwise min/max of input vectors
        friend _D3DVECTOR Minimize (const _D3DVECTOR& v1, const _D3DVECTOR& v2);
        friend _D3DVECTOR Maximize (const _D3DVECTOR& v1, const _D3DVECTOR& v2);

    // Dot and cross product
        friend D3DVALUE DotProduct (const _D3DVECTOR& v1, const _D3DVECTOR& v2);
        friend _D3DVECTOR CrossProduct (const _D3DVECTOR& v1, const _D3DVECTOR& v2);

#endif
#endif /* DIRECT3D_VERSION >= 0x0500 */
} D3DVECTOR;
#define D3DVECTOR_DEFINED
#endif
typedef struct _D3DVECTOR *LPD3DVECTOR;

/*
 * As this is the last of the shared defines to be defined we now set
 * D3D_SHARED_DEFINES to flag that fact that this header has defined these
 * types.
 */
#define DX_SHARED_DEFINES

#endif /* DX_SHARED_DEFINES */

/*
 * Vertex data types supported in an ExecuteBuffer.
 */

/*
 * Homogeneous vertices
 */

typedef struct _D3DHVERTEX {
    DWORD           dwFlags;        /* Homogeneous clipping flags */
    union {
    D3DVALUE    hx;
    D3DVALUE    dvHX;
    };
    union {
    D3DVALUE    hy;
    D3DVALUE    dvHY;
    };
    union {
    D3DVALUE    hz;
    D3DVALUE    dvHZ;
    };
} D3DHVERTEX, *LPD3DHVERTEX;

/*
 * Transformed/lit vertices