//
#define D3DVS_SWIZZLE_SHIFT     16
#define D3DVS_SWIZZLE_MASK      0x00FF0000

// The following bits define where to take component X from:

#define D3DVS_X_X       (0 << D3DVS_SWIZZLE_SHIFT)
#define D3DVS_X_Y       (1 << D3DVS_SWIZZLE_SHIFT)
#define D3DVS_X_Z       (2 << D3DVS_SWIZZLE_SHIFT)
#define D3DVS_X_W       (3 << D3DVS_SWIZZLE_SHIFT)

// The following bits define where to take component Y from:

#define D3DVS_Y_X       (0 << (D3DVS_SWIZZLE_SHIFT + 2))
#define D3DVS_Y_Y       (1 << (D3DVS_SWIZZLE_SHIFT + 2))
#define D3DVS_Y_Z       (2 << (D3DVS_SWIZZLE_SHIFT + 2))
#define D3DVS_Y_W       (3 << (D3DVS_SWIZZLE_SHIFT + 2))

// The following bits define where to take component Z from:

#define D3DVS_Z_X       (0 << (D3DVS_SWIZZLE_SHIFT + 4))
#define D3DVS_Z_Y       (1 << (D3DVS_SWIZZLE_SHIFT + 4))
#define D3DVS_Z_Z       (2 << (D3DVS_SWIZZLE_SHIFT + 4))
#define D3DVS_Z_W       (3 << (D3DVS_SWIZZLE_SHIFT + 4))

// The following bits define where to take component W from:

#define D3DVS_W_X       (0 << (D3DVS_SWIZZLE_SHIFT + 6))
#define D3DVS_W_Y       (1 << (D3DVS_SWIZZLE_SHIFT + 6))
#define D3DVS_W_Z       (2 << (D3DVS_SWIZZLE_SHIFT + 6))
#define D3DVS_W_W       (3 << (D3DVS_SWIZZLE_SHIFT + 6))

// Value when there is no swizzle (X is taken from X, Y is taken from Y,
// Z is taken from Z, W is taken from W
//
#define D3DVS_NOSWIZZLE (D3DVS_X_X | D3DVS_Y_Y | D3DVS_Z_Z | D3DVS_W_W)

// source parameter swizzle
#define D3DSP_SWIZZLE_SHIFT     16
#define D3DSP_SWIZZLE_MASK      0x00FF0000

#define D3DSP_NOSWIZZLE \
    ( (0 << (D3DSP_SWIZZLE_SHIFT + 0)) | \
      (1 << (D3DSP_SWIZZLE_SHIFT + 2)) | \
      (2 << (D3DSP_SWIZZLE_SHIFT + 4)) | \
      (3 << (D3DSP_SWIZZLE_SHIFT + 6)) )

// pixel-shader swizzle ops
#define D3DSP_REPLICATERED \
    ( (0 << (D3DSP_SWIZZLE_SHIFT + 0)) | \
      (0 << (D3DSP_SWIZZLE_SHIFT + 2)) | \
      (0 << (D3DSP_SWIZZLE_SHIFT + 4)) | \
      (0 << (D3DSP_SWIZZLE_SHIFT + 6)) )

#define D3DSP_REPLICATEGREEN \
    ( (1 << (D3DSP_SWIZZLE_SHIFT + 0)) | \
      (1 << (D3DSP_SWIZZLE_SHIFT + 2)) | \
      (1 << (D3DSP_SWIZZLE_SHIFT + 4)) | \
      (1 << (D3DSP_SWIZZLE_SHIFT + 6)) )

#define D3DSP_REPLICATEBLUE \
    ( (2 << (D3DSP_SWIZZLE_SHIFT + 0)) | \
      (2 << (D3DSP_SWIZZLE_SHIFT + 2)) | \
      (2 << (D3DSP_SWIZZLE_SHIFT + 4)) | \
      (2 << (D3DSP_SWIZZLE_SHIFT + 6)) )

#define D3DSP_REPLICATEALPHA \
    ( (3 << (D3DSP_SWIZZLE_SHIFT + 0)) | \
      (3 << (D3DSP_SWIZZLE_SHIFT + 2)) | \
      (3 << (D3DSP_SWIZZLE_SHIFT + 4)) | \
      (3 << (D3DSP_SWIZZLE_SHIFT + 6)) )

// source parameter modifiers
#define D3DSP_SRCMOD_SHIFT      24
#define D3DSP_SRCMOD_MASK       0x0F000000

typedef enum _D3DSHADER_PARAM_SRCMOD_TYPE
{
    D3DSPSM_NONE    = 0<<D3DSP_SRCMOD_SHIFT, // nop
    D3DSPSM_NEG     = 1<<D3DSP_SRCMOD_SHIFT, // negate
    D3DSPSM_BIAS    = 2<<D3DSP_SRCMOD_SHIFT, // bias
    D3DSPSM_BIASNEG = 3<<D3DSP_SRCMOD_SHIFT, // bias and negate
    D3DSPSM_SIGN    = 4<<D3DSP_SRCMOD_SHIFT, // sign
    D3DSPSM_SIGNNEG = 5<<D3DSP_SRCMOD_SHIFT, // sign and negate
    D3DSPSM_COMP    = 6<<D3DSP_SRCMOD_SHIFT, // complement
    D3DSPSM_X2      = 7<<D3DSP_SRCMOD_SHIFT, // *2
    D3DSPSM_X2NEG   = 8<<D3DSP_SRCMOD_SHIFT, // *2 and negate
    D3DSPSM_DZ      = 9<<D3DSP_SRCMOD_SHIFT, // divide through by z component 
    D3DSPSM_DW      = 10<<D3DSP_SRCMOD_SHIFT, // divide through by w component
    D3DSPSM_FORCE_DWORD = 0x7fffffff,        // force 32-bit size enum
} D3DSHADER_PARAM_SRCMOD_TYPE;

// pixel shader version token
#define D3DPS_VERSION(_Major,_Minor) (0xFFFF0000|((_Major)<<8)|(_Minor))

// vertex shader version token
#define D3DVS_VERSION(_Major,_Minor) (0xFFFE0000|((_Major)<<8)|(_Minor))

// extract major/minor from version cap
#define D3DSHADER_VERSION_MAJOR(_Version) (((_Version)>>8)&0xFF)
#define D3DSHADER_VERSION_MINOR(_Version) (((_Version)>>0)&0xFF)

// destination/source parameter register type
#define D3DSI_COMMENTSIZE_SHIFT     16
#define D3DSI_COMMENTSIZE_MASK      0x7FFF0000
#define D3DSHADER_COMMENT(_DWordSize) \
    ((((_DWordSize)<<D3DSI_COMMENTSIZE_SHIFT)&D3DSI_COMMENTSIZE_MASK)|D3DSIO_COMMENT)

// pixel/vertex shader end token
#define D3DPS_END()  0x0000FFFF
#define D3DVS_END()  0x0000FFFF

//---------------------------------------------------------------------

// High order surfaces
//
typedef enum _D3DBASISTYPE
{
   D3DBASIS_BEZIER      = 0,
   D3DBASIS_BSPLINE     = 1,
   D3DBASIS_INTERPOLATE = 2,
   D3DBASIS_FORCE_DWORD = 0x7fffffff,
} D3DBASISTYPE;

typedef enum _D3DORDERTYPE
{
   D3DORDER_LINEAR      = 1,
   D3DORDER_QUADRATIC   = 2,
   D3DORDER_CUBIC       = 3,
   D3DORDER_QUINTIC     = 5,
   D3DORDER_FORCE_DWORD = 0x7fffffff,
} D3DORDERTYPE;

typedef enum _D3DPATCHEDGESTYLE
{
   D3DPATCHEDGE_DISCRETE    = 0,
   D3DPATCHEDGE_CONTINUOUS  = 1,
   D3DPATCHEDGE_FORCE_DWORD = 0x7fffffff,
} D3DPATCHEDGESTYLE;

typedef enum _D3DSTATEBLOCKTYPE
{
    D3DSBT_ALL           = 1, // capture all state
    D3DSBT_PIXELSTATE    = 2, // capture pixel state
    D3DSBT_VERTEXSTATE   = 3, // capture vertex state
    D3DSBT_FORCE_DWORD   = 0x7fffffff,
} D3DSTATEBLOCKTYPE;

// The D3DVERTEXBLENDFLAGS type is used with D3DRS_VERTEXBLEND state.
//
typedef enum _D3DVERTEXBLENDFLAGS
{
    D3DVBF_DISABLE  = 0,     // Disable vertex blending
    D3DVBF_1WEIGHTS = 1,     // 2 matrix blending
    D3DVBF_2WEIGHTS = 2,     // 3 matrix blending
    D3DVBF_3WEIGHTS = 3,     // 4 matrix blending
    D3DVBF_TWEENING = 255,   // blending using D3DRS_TWEENFACTOR
    D3DVBF_0WEIGHTS = 256,   // one matrix is used with weight 1.0
    D3DVBF_FORCE_DWORD = 0x7fffffff, // force 32-bit size enum
} D3DVERTEXBLENDFLAGS;

typedef enum _D3DTEXTURETRANSFORMFLAGS {
    D3DTTFF_DISABLE         = 0,    // texture coordinates are passed directly
    D3DTTFF_COUNT1          = 1,    // rasterizer should expect 1-D texture coords
    D3DTTFF_COUNT2          = 2,    // rasterizer should expect 2-D texture coords
    D3DTTFF_COUNT3          = 3,    // rasterizer should expect 3-D texture coords
    D3DTTFF_COUNT4          = 4,    // rasterizer should expect 4-D texture coords
    D3DTTFF_PROJECTED       = 256,  // texcoords to be divided by COUNTth element
    D3DTTFF_FORCE_DWORD     = 0x7fffffff,
} D3DTEXTURETRANSFORMFLAGS;

// Macros to set texture coordinate format bits in the FVF id

#define D3DFVF_TEXTUREFORMAT2 0         // Two floating point values
#define D3DFVF_TEXTUREFORMAT1 3         // One floating point value
#define D3DFVF_TEXTUREFORMAT3 1         // Three floating point values
#define D3DFVF_TEXTUREFORMAT4 2         // Four floating point values

#define D3DFVF_TEXCOORDSIZE3(CoordIndex) (D3DFVF_TEXTUREFORMAT3 << (CoordIndex*2 + 16))
#define D3DFVF_TEXCOORDSIZE2(CoordIndex) (D3DFVF_TEXTUREFORMAT2)
#define D3DFVF_TEXCOORDSIZE4(CoordIndex) (D3DFVF_TEXTUREFORMAT4 << (CoordIndex*2 + 16))
#define D3DFVF_TEXCOORDSIZE1(CoordIndex) (D3DFVF_TEXTUREFORMAT1 << (CoordIndex*2 + 16))


//---------------------------------------------------------------------

/* Direct3D8 Device types */
typedef enum _D3DDEVTYPE
{
    D3DDEVTYPE_HAL         = 1,
    D3DDEVTYPE_REF         = 2,
    D3DDEVTYPE_SW          = 3,

    D3DDEVTYPE_FORCE_DWORD  = 0x7fffffff
} D3DDEVTYPE;

/* Multi-Sample buffer types */
typedef enum _D3DMULTISAMPLE_TYPE
{
    D3DMULTISAMPLE_NONE            =  0,
    D3DMULTISAMPLE_2_SAMPLES       =  2,
    D3DMULTISAMPLE_3_SAMPLES       =  3,
    D3DMULTISAMPLE_4_SAMPLES       =  4,
    D3DMULTISAMPLE_5_SAMPLES       =  5,
    D3DMULTISAMPLE_6_SAMPLES       =  6,
    D3DMULTISAMPLE_7_SAMPLES       =  7,
    D3DMULTISAMPLE_8_SAMPLES       =  8,
    D3DMULTISAMPLE_9_SAMPLES       =  9,
    D3DMULTISAMPLE_10_SAMPLES      = 10,
    D3DMULTISAMPLE_11_SAMPLES      = 11,
    D3DMULTISAMPLE_12_SAMPLES      = 12,
    D3DMULTISAMPLE_13_SAMPLES      = 13,
    D3DMULTISAMPLE_14_SAMPLES      = 14,
    D3DMULTISAMPLE_15_SAMPLES      = 15,
    D3DMULTISAMPLE_16_SAMPLES      = 16,

    D3DMULTISAMPLE_FORCE_DWORD     = 0x7fffffff
} D3DMULTISAMPLE_TYPE;

/* Formats
 * Most of these names have the following convention:
 *      A = Alpha
 *      R = Red
 *      G = Green
 *      B = Blue
 *      X = Unused Bits
 *      P = Palette
 *      L = Luminance
 *      U = dU coordinate for BumpMap
 *      V = dV coordinate for BumpMap
 *      S = Stencil
 *      D = Depth (e.g. Z or W buffer)
 *
 *      Further, the order of the pieces are from MSB first; hence
 *      D3DFMT_A8L8 indicates that the high byte of this two byte
 *      format is alpha.
 *
 *      D16 indicates:
 *           - An integer 16-bit value.
 *           - An app-lockable surface.
 *
 *      All Depth/Stencil formats except D3DFMT_D16_LOCKABLE indicate:
 *          - no particular bit ordering per pixel, and
 *          - are not app lockable, and
 *          - the driver is allowed to consume more than the indicated
 *            number of bits per Depth channel (but not Stencil channel).
 */
#ifndef MAKEFOURCC
    #define MAKEFOURCC(ch0, ch1, ch2, ch3)                              \
                ((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) |       \
                ((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24 ))
#endif /* defined(MAKEFOURCC) */


typedef enum _D3DFORMAT
{
    D3DFMT_UNKNOWN              =  0,

    D3DFMT_R8G8B8               = 20,
    D3DFMT_A8R8G8B8             = 21,
    D3DFMT_X8R8G8B8             = 22,
    D3DFMT_R5G6B5               = 23,
    D3DFMT_X1R5G5B5             = 24,
    D3DFMT_A1R5G5B5             = 25,
    D3DFMT_A4R4G4B4             = 26,
    D3DFMT_R3G3B2               = 27,
    D3DFMT_A8                   = 28,
    D3DFMT_A8R3G3B2             = 29,
    D3DFMT_X4R4G4B4             = 30,
    D3DFMT_A2B10G10R10          = 31,
    D3DFMT_G16R16               = 34,

    D3DFMT_A8P8                 = 40,
    D3DFMT_P8                   = 41,

    D3DFMT_L8                   = 50,
    D3DFMT_A8L8                 = 51,
    D3DFMT_A4L4                 = 52,

    D3DFMT_V8U8                 = 60,
    D3DFMT_L6V5U5               = 61,
    D3DFMT_X8L8V8U8             = 62,
    D3DFMT_Q8W8V8U8             = 63,
    D3DFMT_V16U16               = 64,
    D3DFMT_W11V11U10            = 65,
    D3DFMT_A2W10V10U10          = 67,

    D3DFMT_UYVY                 = MAKEFOURCC('U', 'Y', 'V', 'Y'),
    D3DFMT_YUY2                 = MAKEFOURCC('Y', 'U', 'Y', '2'),
    D3DFMT_DXT1                 = MAKEFOURCC('D', 'X', 'T', '1'),
    D3DFMT_DXT2                 = MAKEFOURCC('D', 'X', 'T', '2'),
    D3DFMT_DXT3                 = MAKEFOURCC('D', 'X', 'T', '3'),
    D3DFMT_DXT4                 = MAKEFOURCC('D', 'X', 'T', '4'),
    D3DFMT_DXT5                 = MAKEFOURCC('D', 'X', 'T', '5'),

    D3DFMT_D16_LOCKABLE         = 70,
    D3DFMT_D32                  = 71,
    D3DFMT_D15S1                = 73,
    D3DFMT_D24S8                = 75,
    D3DFMT_D16                  = 80,
    D3DFMT_D24X8                = 77,
    D3DFMT_D24X4S4              = 79,


    D3DFMT_VERTEXDATA           =100,
    D3DFMT_INDEX16              =101,
    D3DFMT_INDEX32              =102,

    D3DFMT_FORCE_DWORD          =0x7fffffff
} D3DFORMAT;

/* Display Modes */
typedef struct _D3DDISPLAYMODE
{
    UINT            Width;
    UINT            Height;
    UINT            RefreshRate;
    D3DFORMAT       Format;
} D3DDISPLAYMODE;

/* Creation Parameters */
typedef struct _D3DDEVICE_CREATION_PARAMETERS
{
    UINT            AdapterOrdinal;
    D3DDEVTYPE      DeviceType;
    HWND            hFocusWindow;
    DWORD           BehaviorFlags;
} D3DDEVICE_CREATION_PARAMETERS;


/* SwapEffects */
typedef enum _D3DSWAPEFFECT
{
    D3DSWAPEFFECT_DISCARD           = 1,
    D3DSWAPEFFECT_FLIP              = 2,
    D3DSWAPEFFECT_COPY              = 3,