#pragma once

typedef ULONG HCLIP;

#define ENUM_RECT_LIMIT   50

typedef struct _RECT_ENUM
{
  ULONG c;
  RECTL arcl[ENUM_RECT_LIMIT];
} RECT_ENUM;

typedef struct tagSPAN
{
  LONG Y;
  LONG X;
  ULONG Width;
} SPAN, *PSPAN;

#define R3_OPINDEX_SRCCOPY 0xcc
#define R3_OPINDEX_NOOP 0xaa
#define R4_NOOP ((R3_OPINDEX_NOOP << 8) | R3_OPINDEX_NOOP)
#define R4_MASK ((R3_OPINDEX_NOOP << 8) | R3_OPINDEX_SRCCOPY)

#define ROP2_TO_MIX(Rop2) (((Rop2) << 8) | (Rop2))
#define ROP3_USES_DEST(Rop3)   ((((Rop3) & 0xAA0000) >> 1) != ((Rop3) & 0x550000))
#define ROP4_USES_DEST(Rop4)   (((((Rop4) & 0xAA) >> 1) != ((Rop4) & 0x55)) || ((((Rop4) & 0xAA00) >> 1) != ((Rop4) & 0x5500)))
#define ROP3_USES_SOURCE(Rop3) ((((Rop3) & 0xCC0000) >> 2) != ((Rop3) & 0x330000))
#define ROP4_USES_SOURCE(Rop4) (((((Rop4) & 0xCC) >> 2) != ((Rop4) & 0x33)) || ((((Rop4) & 0xCC00) >> 2) != ((Rop4) & 0x3300)))
#define ROP3_USES_PATTERN(Rop3) ((((Rop3) & 0xF00000) >> 4) != ((Rop3) & 0x0F0000))
#define ROP4_USES_PATTERN(Rop4) (((((Rop4) & 0xF0) >> 4) != ((Rop4) & 0x0F)) || ((((Rop4) & 0xF000) >> 4) != ((Rop4) & 0x0F00)))
#define ROP3_TO_ROP4(Rop3) ((((Rop3) >> 8) & 0xff00) | (((Rop3) >> 16) & 0x00ff))

/* Definitions of IntEngXxx functions */

BOOL APIENTRY
IntEngLineTo(SURFOBJ *Surface,
             CLIPOBJ *Clip,
             BRUSHOBJ *Brush,
             LONG x1,
             LONG y1,
             LONG x2,
             LONG y2,
             RECTL *RectBounds,
             MIX mix);

BOOL APIENTRY
IntEngBitBlt(SURFOBJ *DestObj,
               SURFOBJ *SourceObj,
               SURFOBJ *Mask,
               CLIPOBJ *ClipRegion,
               XLATEOBJ *ColorTranslation,
               RECTL *DestRect,
               POINTL *SourcePoint,
               POINTL *MaskOrigin,
               BRUSHOBJ *Brush,
               POINTL *BrushOrigin,
               ROP4 Rop4);

BOOL APIENTRY
IntEngStretchBlt(SURFOBJ *DestObj,
                 SURFOBJ *SourceObj,
                 SURFOBJ *Mask,
                 CLIPOBJ *ClipRegion,
                 XLATEOBJ *ColorTranslation,
                 RECTL *DestRect,
                 RECTL *SourceRect,
                 POINTL *pMaskOrigin,
                 BRUSHOBJ *Brush,
                 POINTL *BrushOrigin,
                 ULONG Mode);

BOOL APIENTRY
IntEngGradientFill(SURFOBJ *psoDest,
                   CLIPOBJ *pco,
                   XLATEOBJ *pxlo,
                   TRIVERTEX *pVertex,
                   ULONG nVertex,
                   PVOID pMesh,
                   ULONG nMesh,
                   RECTL *prclExtents,
                   POINTL *pptlDitherOrg,
                   ULONG ulMode);

BOOL APIENTRY
IntEngPolyline(SURFOBJ *DestSurf,
               CLIPOBJ *Clip,
               BRUSHOBJ *Brush,
               CONST LPPOINT  pt,
               LONG dCount,
               MIX mix);

CLIPOBJ* FASTCALL
IntEngCreateClipRegion(ULONG count,
                       PRECTL pRect,
                       PRECTL rcBounds);

VOID FASTCALL
IntEngDeleteClipRegion(CLIPOBJ *ClipObj);

BOOLEAN FASTCALL
ClipobjToSpans(PSPAN *Spans,
               UINT *Count,
               CLIPOBJ *ClipRegion,
               PRECTL Boundary);

BOOL FASTCALL
IntEngTransparentBlt(SURFOBJ *Dest,
                     SURFOBJ *Source,
                     CLIPOBJ *Clip,
                     XLATEOBJ *ColorTranslation,
                     PRECTL DestRect,
                     PRECTL SourceRect,
                     ULONG iTransColor,
                     ULONG Reserved);

BOOL APIENTRY
IntEngPaint(IN SURFOBJ *Surface,
            IN CLIPOBJ *ClipRegion,
            IN BRUSHOBJ *Brush,
            IN POINTL *BrushOrigin,
            IN MIX Mix);

VOID APIENTRY
IntEngMovePointer(IN SURFOBJ *pso,
                  IN LONG x,
                  IN LONG y,
                  IN RECTL *prcl);

ULONG APIENTRY
IntEngSetPointerShape(
   IN SURFOBJ *pso,
   IN SURFOBJ *psoMask,
   IN SURFOBJ *psoColor,
   IN XLATEOBJ *pxlo,
   IN LONG xHot,
   IN LONG yHot,
   IN LONG x,
   IN LONG y,
   IN RECTL *prcl,
   IN FLONG fl);

BOOL APIENTRY
IntEngAlphaBlend(IN SURFOBJ *Dest,
                 IN SURFOBJ *Source,
                 IN CLIPOBJ *ClipRegion,
                 IN XLATEOBJ *ColorTranslation,
                 IN PRECTL DestRect,
                 IN PRECTL SourceRect,
                 IN BLENDOBJ *BlendObj);

BOOL APIENTRY
IntEngCopyBits(SURFOBJ *psoDest,
	    SURFOBJ *psoSource,
	    CLIPOBJ *pco,
	    XLATEOBJ *pxlo,
	    RECTL *prclDest,
	    POINTL *ptlSource);