dib.h File Reference

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Classes
struct	_BLTINFO
struct	DIB_FUNCTIONS

Macros
#define	ROP4_BLACKNESS   ((((0x00000042) >> 8) & 0xff00) | (((0x00000042) >> 16) & 0x00ff))
#define	ROP4_NOTSRCERASE   ((((0x001100A6) >> 8) & 0xff00) | (((0x001100A6) >> 16) & 0x00ff))
#define	ROP4_NOTSRCCOPY   ((((0x00330008) >> 8) & 0xff00) | (((0x00330008) >> 16) & 0x00ff))
#define	ROP4_SRCERASE   ((((0x00440328) >> 8) & 0xff00) | (((0x00440328) >> 16) & 0x00ff))
#define	ROP4_DSTINVERT   ((((0x00550009) >> 8) & 0xff00) | (((0x00550009) >> 16) & 0x00ff))
#define	ROP4_PATINVERT   ((((0x005A0049) >> 8) & 0xff00) | (((0x005A0049) >> 16) & 0x00ff))
#define	ROP4_SRCINVERT   ((((0x00660046) >> 8) & 0xff00) | (((0x00660046) >> 16) & 0x00ff))
#define	ROP4_SRCAND   ((((0x008800C6) >> 8) & 0xff00) | (((0x008800C6) >> 16) & 0x00ff))
#define	ROP4_MERGEPAINT   ((((0x00BB0226) >> 8) & 0xff00) | (((0x00BB0226) >> 16) & 0x00ff))
#define	ROP4_MERGECOPY   ((((0x00C000CA) >> 8) & 0xff00) | (((0x00C000CA) >> 16) & 0x00ff))
#define	ROP4_SRCCOPY   ((((0x00CC0020) >> 8) & 0xff00) | (((0x00CC0020) >> 16) & 0x00ff))
#define	ROP4_SRCPAINT   ((((0x00EE0086) >> 8) & 0xff00) | (((0x00EE0086) >> 16) & 0x00ff))
#define	ROP4_PATCOPY   ((((0x00F00021) >> 8) & 0xff00) | (((0x00F00021) >> 16) & 0x00ff))
#define	ROP4_PATPAINT   ((((0x00FB0A09) >> 8) & 0xff00) | (((0x00FB0A09) >> 16) & 0x00ff))
#define	ROP4_WHITENESS   ((((0x00FF0062) >> 8) & 0xff00) | (((0x00FF0062) >> 16) & 0x00ff))
#define	MASK1BPP(x)   (1<<(7-((x)&7)))
#define	DIB_GetSource(SourceSurf, sx, sy, ColorTranslation)
#define	DIB_GetSourceIndex(SourceSurf, sx, sy)

Typedefs
typedef struct _BLTINFO	BLTINFO
typedef struct _BLTINFO *	PBLTINFO
typedef VOID(*	PFN_DIB_PutPixel) (SURFOBJ *, LONG, LONG, ULONG)
typedef ULONG(*	PFN_DIB_GetPixel) (SURFOBJ *, LONG, LONG)
typedef VOID(*	PFN_DIB_HLine) (SURFOBJ *, LONG, LONG, LONG, ULONG)
typedef VOID(*	PFN_DIB_VLine) (SURFOBJ *, LONG, LONG, LONG, ULONG)
typedef BOOLEAN(*	PFN_DIB_BitBlt) (PBLTINFO)
typedef BOOLEAN(*	PFN_DIB_StretchBlt) (SURFOBJ *, SURFOBJ *, SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, POINTL *, BRUSHOBJ *, POINTL *, XLATEOBJ *, ROP4)
typedef BOOLEAN(*	PFN_DIB_TransparentBlt) (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
typedef BOOLEAN(*	PFN_DIB_ColorFill) (SURFOBJ *, RECTL *, ULONG)
typedef BOOLEAN(*	PFN_DIB_AlphaBlend) (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, CLIPOBJ *, XLATEOBJ *, BLENDOBJ *)

Functions
VOID	Dummy_PutPixel (SURFOBJ *, LONG, LONG, ULONG)
ULONG	Dummy_GetPixel (SURFOBJ *, LONG, LONG)
VOID	Dummy_HLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
VOID	Dummy_VLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
BOOLEAN	Dummy_BitBlt (PBLTINFO)
BOOLEAN	Dummy_StretchBlt (SURFOBJ *, SURFOBJ *, SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, POINTL *, BRUSHOBJ *, POINTL *, XLATEOBJ *, ROP4)
BOOLEAN	Dummy_TransparentBlt (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
BOOLEAN	Dummy_ColorFill (SURFOBJ *, RECTL *, ULONG)
BOOLEAN	Dummy_AlphaBlend (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, CLIPOBJ *, XLATEOBJ *, BLENDOBJ *)
VOID	DIB_1BPP_PutPixel (SURFOBJ *, LONG, LONG, ULONG)
ULONG	DIB_1BPP_GetPixel (SURFOBJ *, LONG, LONG)
VOID	DIB_1BPP_HLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
VOID	DIB_1BPP_VLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
BOOLEAN	DIB_1BPP_BitBlt (PBLTINFO)
BOOLEAN	DIB_1BPP_BitBltSrcCopy (PBLTINFO)
BOOLEAN	DIB_1BPP_TransparentBlt (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
BOOLEAN	DIB_1BPP_ColorFill (SURFOBJ *, RECTL *, ULONG)
VOID	DIB_4BPP_PutPixel (SURFOBJ *, LONG, LONG, ULONG)
ULONG	DIB_4BPP_GetPixel (SURFOBJ *, LONG, LONG)
VOID	DIB_4BPP_HLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
VOID	DIB_4BPP_VLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
BOOLEAN	DIB_4BPP_BitBlt (PBLTINFO)
BOOLEAN	DIB_4BPP_BitBltSrcCopy (PBLTINFO)
BOOLEAN	DIB_4BPP_TransparentBlt (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
BOOLEAN	DIB_4BPP_ColorFill (SURFOBJ *, RECTL *, ULONG)
VOID	DIB_8BPP_PutPixel (SURFOBJ *, LONG, LONG, ULONG)
ULONG	DIB_8BPP_GetPixel (SURFOBJ *, LONG, LONG)
VOID	DIB_8BPP_HLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
VOID	DIB_8BPP_VLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
BOOLEAN	DIB_8BPP_BitBlt (PBLTINFO)
BOOLEAN	DIB_8BPP_BitBltSrcCopy (PBLTINFO)
BOOLEAN	DIB_8BPP_TransparentBlt (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
BOOLEAN	DIB_8BPP_ColorFill (SURFOBJ *, RECTL *, ULONG)
VOID	DIB_16BPP_PutPixel (SURFOBJ *, LONG, LONG, ULONG)
ULONG	DIB_16BPP_GetPixel (SURFOBJ *, LONG, LONG)
VOID	DIB_16BPP_HLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
VOID	DIB_16BPP_VLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
BOOLEAN	DIB_16BPP_BitBlt (PBLTINFO)
BOOLEAN	DIB_16BPP_BitBltSrcCopy (PBLTINFO)
BOOLEAN	DIB_16BPP_TransparentBlt (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
BOOLEAN	DIB_16BPP_ColorFill (SURFOBJ *, RECTL *, ULONG)
BOOLEAN	DIB_16BPP_AlphaBlend (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, CLIPOBJ *, XLATEOBJ *, BLENDOBJ *)
VOID	DIB_24BPP_PutPixel (SURFOBJ *, LONG, LONG, ULONG)
ULONG	DIB_24BPP_GetPixel (SURFOBJ *, LONG, LONG)
VOID	DIB_24BPP_HLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
VOID	DIB_24BPP_VLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
BOOLEAN	DIB_24BPP_BitBlt (PBLTINFO)
BOOLEAN	DIB_24BPP_BitBltSrcCopy (PBLTINFO)
BOOLEAN	DIB_24BPP_TransparentBlt (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
BOOLEAN	DIB_24BPP_ColorFill (SURFOBJ *, RECTL *, ULONG)
BOOLEAN	DIB_24BPP_AlphaBlend (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, CLIPOBJ *, XLATEOBJ *, BLENDOBJ *)
VOID	DIB_32BPP_PutPixel (SURFOBJ *, LONG, LONG, ULONG)
ULONG	DIB_32BPP_GetPixel (SURFOBJ *, LONG, LONG)
VOID	DIB_32BPP_HLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
VOID	DIB_32BPP_VLine (SURFOBJ *, LONG, LONG, LONG, ULONG)
BOOLEAN	DIB_32BPP_BitBlt (PBLTINFO)
BOOLEAN	DIB_32BPP_BitBltSrcCopy (PBLTINFO)
BOOLEAN	DIB_32BPP_TransparentBlt (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)
BOOLEAN	DIB_32BPP_ColorFill (SURFOBJ *, RECTL *, ULONG)
BOOLEAN	DIB_32BPP_AlphaBlend (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, CLIPOBJ *, XLATEOBJ *, BLENDOBJ *)
BOOLEAN	DIB_XXBPP_StretchBlt (SURFOBJ *, SURFOBJ *, SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, POINTL *, BRUSHOBJ *, POINTL *, XLATEOBJ *, ROP4)
BOOLEAN	DIB_XXBPP_FloodFillSolid (SURFOBJ *, BRUSHOBJ *, RECTL *, POINTL *, ULONG, UINT)
BOOLEAN	DIB_XXBPP_AlphaBlend (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, CLIPOBJ *, XLATEOBJ *, BLENDOBJ *)
ULONG	DIB_DoRop (ULONG Rop, ULONG Dest, ULONG Source, ULONG Pattern)

Variables
DIB_FUNCTIONS	DibFunctionsForBitmapFormat []
unsigned char	notmask [2]
unsigned char	altnotmask [2]

Macro Definition Documentation

DIB_GetSource

#define DIB_GetSource	(		SourceSurf,
			sx,
			sy,
			ColorTranslation
	)

Value:

XLATEOBJ_iXlate(ColorTranslation,                         \
    DibFunctionsForBitmapFormat[SourceSurf->iBitmapFormat]. \
    DIB_GetPixel(SourceSurf, sx, sy))

Definition at line 136 of file dib.h.

DIB_GetSourceIndex

#define DIB_GetSourceIndex	(		SourceSurf,
			sx,
			sy
	)

Value:

DibFunctionsForBitmapFormat[SourceSurf->iBitmapFormat].   \
    DIB_GetPixel(SourceSurf, sx, sy)

Definition at line 141 of file dib.h.

MASK1BPP

#define MASK1BPP

(

x

)

(1<<(7-((x)&7)))

Definition at line 132 of file dib.h.

ROP4_BLACKNESS

#define ROP4_BLACKNESS   ((((0x00000042) >> 8) & 0xff00) | (((0x00000042) >> 16) & 0x00ff))

Definition at line 3 of file dib.h.

ROP4_DSTINVERT

#define ROP4_DSTINVERT   ((((0x00550009) >> 8) & 0xff00) | (((0x00550009) >> 16) & 0x00ff))

Definition at line 7 of file dib.h.

ROP4_MERGECOPY

#define ROP4_MERGECOPY   ((((0x00C000CA) >> 8) & 0xff00) | (((0x00C000CA) >> 16) & 0x00ff))

Definition at line 12 of file dib.h.

ROP4_MERGEPAINT

#define ROP4_MERGEPAINT   ((((0x00BB0226) >> 8) & 0xff00) | (((0x00BB0226) >> 16) & 0x00ff))

Definition at line 11 of file dib.h.

ROP4_NOTSRCCOPY

#define ROP4_NOTSRCCOPY   ((((0x00330008) >> 8) & 0xff00) | (((0x00330008) >> 16) & 0x00ff))

Definition at line 5 of file dib.h.

ROP4_NOTSRCERASE

#define ROP4_NOTSRCERASE   ((((0x001100A6) >> 8) & 0xff00) | (((0x001100A6) >> 16) & 0x00ff))

Definition at line 4 of file dib.h.

ROP4_PATCOPY

#define ROP4_PATCOPY   ((((0x00F00021) >> 8) & 0xff00) | (((0x00F00021) >> 16) & 0x00ff))

Definition at line 15 of file dib.h.

ROP4_PATINVERT

#define ROP4_PATINVERT   ((((0x005A0049) >> 8) & 0xff00) | (((0x005A0049) >> 16) & 0x00ff))

Definition at line 8 of file dib.h.

ROP4_PATPAINT

#define ROP4_PATPAINT   ((((0x00FB0A09) >> 8) & 0xff00) | (((0x00FB0A09) >> 16) & 0x00ff))

Definition at line 16 of file dib.h.

ROP4_SRCAND

#define ROP4_SRCAND   ((((0x008800C6) >> 8) & 0xff00) | (((0x008800C6) >> 16) & 0x00ff))

Definition at line 10 of file dib.h.

ROP4_SRCCOPY

#define ROP4_SRCCOPY   ((((0x00CC0020) >> 8) & 0xff00) | (((0x00CC0020) >> 16) & 0x00ff))

Definition at line 13 of file dib.h.

ROP4_SRCERASE

#define ROP4_SRCERASE   ((((0x00440328) >> 8) & 0xff00) | (((0x00440328) >> 16) & 0x00ff))

Definition at line 6 of file dib.h.

ROP4_SRCINVERT

#define ROP4_SRCINVERT   ((((0x00660046) >> 8) & 0xff00) | (((0x00660046) >> 16) & 0x00ff))

Definition at line 9 of file dib.h.

ROP4_SRCPAINT

#define ROP4_SRCPAINT   ((((0x00EE0086) >> 8) & 0xff00) | (((0x00EE0086) >> 16) & 0x00ff))

Definition at line 14 of file dib.h.

ROP4_WHITENESS

#define ROP4_WHITENESS   ((((0x00FF0062) >> 8) & 0xff00) | (((0x00FF0062) >> 16) & 0x00ff))

Definition at line 17 of file dib.h.

Typedef Documentation

BLTINFO

typedef struct _BLTINFO BLTINFO

PBLTINFO

typedef struct _BLTINFO * PBLTINFO

PFN_DIB_AlphaBlend

typedef BOOLEAN(* PFN_DIB_AlphaBlend) (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, CLIPOBJ *, XLATEOBJ *, BLENDOBJ *)

Definition at line 41 of file dib.h.

PFN_DIB_BitBlt

typedef BOOLEAN(* PFN_DIB_BitBlt) (PBLTINFO)

Definition at line 37 of file dib.h.

PFN_DIB_ColorFill

typedef BOOLEAN(* PFN_DIB_ColorFill) (SURFOBJ *, RECTL *, ULONG)

Definition at line 40 of file dib.h.

PFN_DIB_GetPixel

typedef ULONG(* PFN_DIB_GetPixel) (SURFOBJ *, LONG, LONG)

Definition at line 34 of file dib.h.

PFN_DIB_HLine

typedef VOID(* PFN_DIB_HLine) (SURFOBJ *, LONG, LONG, LONG, ULONG)

Definition at line 35 of file dib.h.

PFN_DIB_PutPixel

typedef VOID(* PFN_DIB_PutPixel) (SURFOBJ *, LONG, LONG, ULONG)

Definition at line 33 of file dib.h.

PFN_DIB_StretchBlt

typedef BOOLEAN(* PFN_DIB_StretchBlt) (SURFOBJ *, SURFOBJ *, SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, POINTL *, BRUSHOBJ *, POINTL *, XLATEOBJ *, ROP4)

Definition at line 38 of file dib.h.

PFN_DIB_TransparentBlt

typedef BOOLEAN(* PFN_DIB_TransparentBlt) (SURFOBJ *, SURFOBJ *, RECTL *, RECTL *, XLATEOBJ *, ULONG)

Definition at line 39 of file dib.h.

PFN_DIB_VLine

typedef VOID(* PFN_DIB_VLine) (SURFOBJ *, LONG, LONG, LONG, ULONG)

Definition at line 36 of file dib.h.

Function Documentation

DIB_16BPP_AlphaBlend()

BOOLEAN DIB_16BPP_AlphaBlend	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		CLIPOBJ *	,
		XLATEOBJ *	,
		BLENDOBJ *
	)

Definition at line 851 of file dib16bpp.c.

{
  INT DstX, DstY, SrcX, SrcY;
  BLENDFUNCTION BlendFunc;
  NICEPIXEL32 SrcPixel32;
  UCHAR Alpha;
  EXLATEOBJ* pexlo;
  EXLATEOBJ exloSrcRGB;

  DPRINT("DIB_16BPP_AlphaBlend: srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
    SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
    DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);

  BlendFunc = BlendObj->BlendFunction;
  if (BlendFunc.BlendOp != AC_SRC_OVER)
  {
    DPRINT1("BlendOp != AC_SRC_OVER\n");
    return FALSE;
  }
  if (BlendFunc.BlendFlags != 0)
  {
    DPRINT1("BlendFlags != 0\n");
    return FALSE;
  }
  if ((BlendFunc.AlphaFormat & ~AC_SRC_ALPHA) != 0)
  {
    DPRINT1("Unsupported AlphaFormat (0x%x)\n", BlendFunc.AlphaFormat);
    return FALSE;
  }
  if ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0 &&
          (BitsPerFormat(Source->iBitmapFormat) != 32))
  {
    DPRINT1("Source bitmap must be 32bpp when AC_SRC_ALPHA is set\n");
    return FALSE;
  }

  if (!ColorTranslation)
  {
    DPRINT1("ColorTranslation must not be NULL!\n");
    return FALSE;
  }

  pexlo = CONTAINING_RECORD(ColorTranslation, EXLATEOBJ, xlo);
  EXLATEOBJ_vInitialize(&exloSrcRGB, pexlo->ppalSrc, &gpalRGB, 0, 0, 0);

  if (pexlo->ppalDst->flFlags & PAL_RGB16_555)
  {
      NICEPIXEL16_555 DstPixel16;

      SrcY = SourceRect->top;
      DstY = DestRect->top;
      while ( DstY < DestRect->bottom )
      {
        SrcX = SourceRect->left;
        DstX = DestRect->left;
        while(DstX < DestRect->right)
        {
          SrcPixel32.ul = DIB_GetSource(Source, SrcX, SrcY, &exloSrcRGB.xlo);
          SrcPixel32.col.red = (SrcPixel32.col.red * BlendFunc.SourceConstantAlpha) / 255;
          SrcPixel32.col.green = (SrcPixel32.col.green * BlendFunc.SourceConstantAlpha) / 255;
          SrcPixel32.col.blue = (SrcPixel32.col.blue * BlendFunc.SourceConstantAlpha) / 255;

          Alpha = ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0) ?
               (SrcPixel32.col.alpha * BlendFunc.SourceConstantAlpha) / 255 :
               BlendFunc.SourceConstantAlpha;

          Alpha >>= 3;

          DstPixel16.us = DIB_16BPP_GetPixel(Dest, DstX, DstY) & 0xFFFF;
          /* Perform bit loss */
          SrcPixel32.col.red >>= 3;
          SrcPixel32.col.green >>= 3;
          SrcPixel32.col.blue >>= 3;

          /* Do the blend in the right bit depth */
          DstPixel16.col.red = Clamp5((DstPixel16.col.red * (31 - Alpha)) / 31 + SrcPixel32.col.red);
          DstPixel16.col.green = Clamp5((DstPixel16.col.green * (31 - Alpha)) / 31 + SrcPixel32.col.green);
          DstPixel16.col.blue = Clamp5((DstPixel16.col.blue * (31 - Alpha)) / 31 + SrcPixel32.col.blue);

          DIB_16BPP_PutPixel(Dest, DstX, DstY, DstPixel16.us);

          DstX++;
          SrcX = SourceRect->left + ((DstX-DestRect->left)*(SourceRect->right - SourceRect->left))
                                                /(DestRect->right-DestRect->left);
        }
        DstY++;
        SrcY = SourceRect->top + ((DstY-DestRect->top)*(SourceRect->bottom - SourceRect->top))
                                                /(DestRect->bottom-DestRect->top);
      }
  }
  else
  {
      NICEPIXEL16_565 DstPixel16;
      UCHAR Alpha6, Alpha5;

      SrcY = SourceRect->top;
      DstY = DestRect->top;
      while ( DstY < DestRect->bottom )
      {
        SrcX = SourceRect->left;
        DstX = DestRect->left;
        while(DstX < DestRect->right)
        {
          SrcPixel32.ul = DIB_GetSource(Source, SrcX, SrcY, &exloSrcRGB.xlo);
          SrcPixel32.col.red = (SrcPixel32.col.red * BlendFunc.SourceConstantAlpha) / 255;
          SrcPixel32.col.green = (SrcPixel32.col.green * BlendFunc.SourceConstantAlpha) / 255;
          SrcPixel32.col.blue = (SrcPixel32.col.blue * BlendFunc.SourceConstantAlpha) / 255;

          Alpha = ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0) ?
               (SrcPixel32.col.alpha * BlendFunc.SourceConstantAlpha) / 255 :
               BlendFunc.SourceConstantAlpha;

          Alpha6 = Alpha >> 2;
          Alpha5 = Alpha >> 3;

          DstPixel16.us = DIB_16BPP_GetPixel(Dest, DstX, DstY) & 0xFFFF;
          /* Perform bit loss */
          SrcPixel32.col.red >>= 3;
          SrcPixel32.col.green >>= 2;
          SrcPixel32.col.blue >>= 3;

          /* Do the blend in the right bit depth */
          DstPixel16.col.red = Clamp5((DstPixel16.col.red * (31 - Alpha5)) / 31 + SrcPixel32.col.red);
          DstPixel16.col.green = Clamp6((DstPixel16.col.green * (63 - Alpha6)) / 63 + SrcPixel32.col.green);
          DstPixel16.col.blue = Clamp5((DstPixel16.col.blue * (31 - Alpha5)) / 31 + SrcPixel32.col.blue);

          DIB_16BPP_PutPixel(Dest, DstX, DstY, DstPixel16.us);

          DstX++;
          SrcX = SourceRect->left + ((DstX-DestRect->left)*(SourceRect->right - SourceRect->left))
                                                /(DestRect->right-DestRect->left);
        }
        DstY++;
        SrcY = SourceRect->top + ((DstY-DestRect->top)*(SourceRect->bottom - SourceRect->top))
                                                /(DestRect->bottom-DestRect->top);
      }
  }

  EXLATEOBJ_vCleanup(&exloSrcRGB);

  return TRUE;
}

DIB_16BPP_BitBlt()

BOOLEAN DIB_16BPP_BitBlt

(

PBLTINFO

)

DIB_16BPP_BitBltSrcCopy()

BOOLEAN DIB_16BPP_BitBltSrcCopy

(

PBLTINFO

)

Definition at line 144 of file dib16bpp.c.

{
  LONG     i, j, sx, sy, xColor, f1;
  PBYTE    SourceBits, DestBits, SourceLine, DestLine;
  PBYTE    SourceBits_4BPP, SourceLine_4BPP;
  PWORD    Source32, Dest32;
  DWORD    Index, StartLeft, EndRight;
  BOOLEAN  bTopToBottom, bLeftToRight;

  DPRINT("DIB_16BPP_BitBltSrcCopy: SrcSurf cx/cy (%d/%d), DestSuft cx/cy (%d/%d) dstRect: (%d,%d)-(%d,%d)\n",
         BltInfo->SourceSurface->sizlBitmap.cx, BltInfo->SourceSurface->sizlBitmap.cy,
         BltInfo->DestSurface->sizlBitmap.cx, BltInfo->DestSurface->sizlBitmap.cy,
         BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);

  /* Get back left to right flip here */
  bLeftToRight = BltInfo->DestRect.left > BltInfo->DestRect.right;

  /* Check for top to bottom flip needed. */
  bTopToBottom = BltInfo->DestRect.top > BltInfo->DestRect.bottom;

  DPRINT("BltInfo->SourcePoint.x is '%d' & BltInfo->SourcePoint.y is '%d'.\n",
         BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);

  /* Make WellOrdered with top < bottom and left < right */
  RECTL_vMakeWellOrdered(&BltInfo->DestRect);

  DPRINT("BPP is '%d/%d' & BltInfo->SourcePoint.x is '%d' & BltInfo->SourcePoint.y is '%d'.\n",
         BltInfo->SourceSurface->iBitmapFormat, BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);

  DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + 2 * BltInfo->DestRect.left;

  switch(BltInfo->SourceSurface->iBitmapFormat)
  {
  case BMF_1BPP:
    DPRINT("1BPP Case Selected with DestRect Width of '%d'.\n",
           BltInfo->DestRect.right - BltInfo->DestRect.left);
    sx = BltInfo->SourcePoint.x;

    /* This sets sy to the top line */
    sy = BltInfo->SourcePoint.y;

    if (bTopToBottom)
    {
      /* This sets sy to the bottom line */
      sy += BltInfo->SourceSurface->lDelta * (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
        /* This sets the sx to the rightmost pixel */
        sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        StartLeft = BltInfo->DestRect.left + 1;
        EndRight = BltInfo->DestRect.right + 1;
      }
      else
      {
        StartLeft = BltInfo->DestRect.left;
        EndRight = BltInfo->DestRect.right;
      }

      for (i = StartLeft; i < EndRight; i++)
      {
        if(DIB_1BPP_GetPixel(BltInfo->SourceSurface, sx, sy) == 0)
        {
          DIB_16BPP_PutPixel(BltInfo->DestSurface, i, j,
            XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
        }
        else
        {
          DIB_16BPP_PutPixel(BltInfo->DestSurface, i, j,
            XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 1));
        }
        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(sy, bTopToBottom, 1);
    }
    break;

  case BMF_4BPP:
    DPRINT("4BPP Case Selected with DestRect Width of '%d'.\n",
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    /* This sets SourceBits_4BPP to the top line */
    SourceBits_4BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 +
      (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) +
      (BltInfo->SourcePoint.x >> 1);

    if (bTopToBottom)
    {
      /* This sets SourceBits_4BPP to the bottom line */
      SourceBits_4BPP += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      SourceLine_4BPP = SourceBits_4BPP;
      sx = BltInfo->SourcePoint.x;
      if (bLeftToRight)
      {
        /* This sets sx to the rightmost pixel */
        sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
      }

      f1 = sx & 1;

      for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
      {
        xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest,
          (*SourceLine_4BPP & altnotmask[f1]) >> (4 * (1 - f1)));
        DIB_16BPP_PutPixel(BltInfo->DestSurface, i, j, xColor);
        if(f1 == 1)
        {
          DEC_OR_INC(SourceLine_4BPP, bLeftToRight, 1);
          f1 = 0;
        }
        else
        {
          f1 = 1;
        }
        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(SourceBits_4BPP, bTopToBottom, BltInfo->SourceSurface->lDelta);
    }
    break;

  case BMF_8BPP:
    DPRINT("8BPP Case Selected with DestRect Width of '%d'.\n",
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    /* This sets SourceLine to the top line */
    SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
      (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) +
      BltInfo->SourcePoint.x;
    DestLine = DestBits;

    if (bTopToBottom)
    {
      /* This sets SourceLine to the bottom line */
      SourceLine += BltInfo->SourceSurface->lDelta 
        * (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
    }

    for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
    {
      SourceBits = SourceLine;
      DestBits = DestLine;

      if (bLeftToRight)
      {
        /* This sets SourceBits to the rightmost pixel */
        SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
      }

      for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
      {
        *((WORD *)DestBits) = (WORD)XLATEOBJ_iXlate(
          BltInfo->XlateSourceToDest, *SourceBits);
        DEC_OR_INC(SourceBits, bLeftToRight, 1);
        DestBits += 2;
      }
      DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
      DestLine += BltInfo->DestSurface->lDelta;
    }
    break;

  case BMF_16BPP:
    DPRINT("16BPP Case Selected with DestRect Width of '%d'.\n",
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    DPRINT("BMF_16BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
           BltInfo->DestRect.left, BltInfo->DestRect.top,
           BltInfo->DestRect.right, BltInfo->DestRect.bottom,
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    if ((BltInfo->XlateSourceToDest == NULL ||
      (BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL) != 0) &&
      (!bTopToBottom && !bLeftToRight))
    {
      DPRINT("XO_TRIVIAL is TRUE.\n");
      if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
      {
        /* This sets SourceBits to the top line */
        SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 +
          (BltInfo->SourcePoint.y *
          BltInfo->SourceSurface->lDelta) + 2 *
          BltInfo->SourcePoint.x;

        for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
        {
          RtlMoveMemory(DestBits, SourceBits,
            2 * (BltInfo->DestRect.right -
            BltInfo->DestRect.left));

          SourceBits += BltInfo->SourceSurface->lDelta;
          DestBits += BltInfo->DestSurface->lDelta;
        }
      }
      else
      {
        /* This sets SourceBits to the bottom line */
        SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 +
          ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom -
          BltInfo->DestRect.top - 1) *
          BltInfo->SourceSurface->lDelta) + 2 *
          BltInfo->SourcePoint.x;

        DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 +
          ((BltInfo->DestRect.bottom - 1) *
          BltInfo->DestSurface->lDelta) + 2 *
          BltInfo->DestRect.left;

        for (j = BltInfo->DestRect.bottom - 1;
          BltInfo->DestRect.top <= j; j--)
        {
          RtlMoveMemory(DestBits, SourceBits, 2 *
            (BltInfo->DestRect.right -
            BltInfo->DestRect.left));

          SourceBits -= BltInfo->SourceSurface->lDelta;
          DestBits -= BltInfo->DestSurface->lDelta;
        }
      }
    }
    else
    {
      DPRINT("XO_TRIVIAL is NOT TRUE.\n");
      if (!bTopToBottom && !bLeftToRight)
      /* **Note: Indent is purposefully less than desired to keep reviewable differences to a minimum for PR** */
    {
      DPRINT("Flip is None.\n");
      if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
      {
        SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
          (BltInfo->SourcePoint.y *
          BltInfo->SourceSurface->lDelta) + 2 *
          BltInfo->SourcePoint.x;

        DestLine = DestBits;
        for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
        {
          SourceBits = SourceLine;
          DestBits = DestLine;
          for (i = BltInfo->DestRect.left; i <
            BltInfo->DestRect.right; i++)
          {
            *((WORD *)DestBits) = (WORD)XLATEOBJ_iXlate(
              BltInfo->XlateSourceToDest,
              *((WORD *)SourceBits));
            SourceBits += 2;
            DestBits += 2;
          }
          SourceLine += BltInfo->SourceSurface->lDelta;
          DestLine += BltInfo->DestSurface->lDelta;
        }
      }
      else
      {
        SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
          ((BltInfo->SourcePoint.y +
          BltInfo->DestRect.bottom -
          BltInfo->DestRect.top - 1) *
          BltInfo->SourceSurface->lDelta) + 2 *
          BltInfo->SourcePoint.x;

        DestLine = (PBYTE)BltInfo->DestSurface->pvScan0 +
          ((BltInfo->DestRect.bottom - 1) *
          BltInfo->DestSurface->lDelta) + 2 *
          BltInfo->DestRect.left;

        for (j = BltInfo->DestRect.bottom - 1;
          BltInfo->DestRect.top <= j; j--)
        {
          SourceBits = SourceLine;
          DestBits = DestLine;
          for (i = BltInfo->DestRect.left; i <
            BltInfo->DestRect.right; i++)
          {
            *((WORD *)DestBits) = (WORD)XLATEOBJ_iXlate(
              BltInfo->XlateSourceToDest,
              *((WORD *)SourceBits));
            SourceBits += 2;
            DestBits += 2;
          }
          SourceLine -= BltInfo->SourceSurface->lDelta;
          DestLine -= BltInfo->DestSurface->lDelta;
        }
      }
    }
      else
      {
        /* Buffering for source and destination flip overlaps. Fixes KHMZ MirrorTest CORE-16642 */
        BOOL TopToBottomDone = FALSE;

        if (bLeftToRight)
        {
          DPRINT("Flip is bLeftToRight.\n");

          /* Allocate enough pixels for a row in WORD's */
          WORD *store = ExAllocatePoolWithTag(NonPagedPool,
            (BltInfo->DestRect.right - BltInfo->DestRect.left + 1) * 2, TAG_DIB);
          if (store == NULL)
          {
            DPRINT1("Storage Allocation Failed.\n");
            return FALSE;
          }
          WORD  Index;

          /* This sets SourceBits to the bottom line */
          SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
            + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1)
            * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;

          /* Sets DestBits to the bottom line */
          DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
           + (BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta
           + 2 * BltInfo->DestRect.left + 2;

          for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
          {
            /* Set Dest32 to right pixel */
            Dest32 = (WORD *) DestBits + (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
            Source32 = (WORD *) SourceBits;

            Index = 0;

            /* Store pixels from left to right */
            for (i = BltInfo->DestRect.right - 1; BltInfo->DestRect.left <= i; i--)
            {
              store[Index] = (WORD)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *(WORD *)Source32++);
              Index++;
            }

            Index = 0;

            /* Copy stored data to pixels from right to left */
            for (i = BltInfo->DestRect.right - 1; BltInfo->DestRect.left <= i; i--)
            {
              *(WORD *)Dest32-- = store[Index];
              Index++;
            }

            SourceBits -= BltInfo->SourceSurface->lDelta;
            DestBits -= BltInfo->DestSurface->lDelta;
          }
          ExFreePoolWithTag(store, TAG_DIB);
          TopToBottomDone = TRUE;
        }

        if (bTopToBottom)
        {
          DPRINT("Flip is bTopToBottom.\n");

          /* Allocate enough pixels for a column in WORD's */
          WORD *store = ExAllocatePoolWithTag(NonPagedPool,
            (BltInfo->DestRect.bottom - BltInfo->DestRect.top + 1) * 2, TAG_DIB);
          if (store == NULL)
          {
            DPRINT1("Storage Allocation Failed.\n");
            return FALSE;
          }

          /* This set SourceBits to the top line */
          SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
            + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
            + 2 * BltInfo->SourcePoint.x;

          /* This sets DestBits to the top line */
          DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
           + ((BltInfo->DestRect.top) * BltInfo->DestSurface->lDelta)
           + 2 * BltInfo->DestRect.left;

          if ((BltInfo->SourceSurface->fjBitmap & BMF_TOPDOWN) == 0)
          {
            DestBits += BltInfo->DestSurface->lDelta;
          }

          if (bLeftToRight)
          {
            DPRINT("Adjusting DestBits for bLeftToRight.\n");
            DestBits += 2;
          }

          /* The TopToBottomDone flag indicates that we are flipping for bTopToBottom and bLeftToRight
           * and have already completed the bLeftToRight. So we will lose our first flip output
           * unless we work with its output which is at the destination site. So in this case
           * our new Source becomes the previous outputs Destination. */

          if (TopToBottomDone)
          {
            /* This sets SourceBits to the top line */
            SourceBits = DestBits;
          }

          for (j = BltInfo->DestRect.right - 1; BltInfo->DestRect.left <= j ; j--)
          {
            /* Set Dest32 to bottom pixel */
            Dest32 = (WORD *) DestBits  + (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1)
              * BltInfo->DestSurface->lDelta / 2;
            Source32 = (WORD *) SourceBits;

            Index = 0;

            /* Store pixels from top to bottom */
            for (i = BltInfo->DestRect.top; i <= BltInfo->DestRect.bottom - 1; i++)
            {
              store[Index] = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *Source32);
              Source32 += BltInfo->SourceSurface->lDelta / 2;
              Index++;
            }

            Index = 0;

            /* Copy stored data to pixels from bottom to top */
            for (i = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= i; i--)
            {
              *Dest32 = store[Index];
              Dest32 -= BltInfo->DestSurface->lDelta / 2;
              Index++;
            }
            SourceBits += 2;
            DestBits += 2;
          }
          ExFreePoolWithTag(store, TAG_DIB);
        }

      }
    }
    break;

  case BMF_24BPP:

    DPRINT("BMF_24BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
           BltInfo->DestRect.left, BltInfo->DestRect.top,
           BltInfo->DestRect.right, BltInfo->DestRect.bottom,
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    /* This sets SourceLine to the top line */
    SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
      (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) +
      3 * BltInfo->SourcePoint.x;

    if (bTopToBottom)
    {
      /* This sets SourceLine to the bottom line */
      SourceLine += BltInfo->SourceSurface->lDelta * (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
    }
    DestLine = DestBits;

    for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
    {
      SourceBits = SourceLine;
      DestBits = DestLine;

      if (bLeftToRight)
      {
        /* This sets the SourceBits to the rightmost pixel */
        SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 3;
      }
      for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
      {
        xColor = (*(SourceBits + 2) << 0x10) +
          (*(SourceBits + 1) << 0x08) + (*(SourceBits));

        *((WORD *)DestBits) = (WORD)XLATEOBJ_iXlate(
          BltInfo->XlateSourceToDest, xColor);

        DEC_OR_INC(SourceBits, bLeftToRight, 3);
        DestBits += 2;
      }
      DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
      DestLine += BltInfo->DestSurface->lDelta;
    }
    break;

  case BMF_32BPP:
    DPRINT("32BPP Case Selected with DestRect Width of '%d'.\n",
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
      (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) +
      4 * BltInfo->SourcePoint.x;

    if (bTopToBottom)
    {
      /* This sets SourceLine to the bottom line */
      SourceLine += BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1;
    }
    DestLine = DestBits;

    for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
    {
      SourceBits = SourceLine;
      DestBits = DestLine;

      if (bLeftToRight)
      {
        /* This sets SourceBits to the rightmost pixel */
        SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 4;
      }

      for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
      {
        *((WORD *)DestBits) = (WORD)XLATEOBJ_iXlate(
          BltInfo->XlateSourceToDest,
          *((PDWORD) SourceBits));
        DEC_OR_INC(SourceBits, bLeftToRight, 4);
        DestBits += 2;
      }

      DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
      DestLine += BltInfo->DestSurface->lDelta;
    }
    break;

  default:
    DPRINT1("DIB_16BPP_BitBltSrcCopy: Unhandled Source BPP: %u\n",
            BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
    return FALSE;
  }

  return TRUE;
}

DIB_16BPP_ColorFill()

BOOLEAN DIB_16BPP_ColorFill	(	SURFOBJ *	,
		RECTL *	,
		ULONG
	)

Definition at line 673 of file dib16bpp.c.

{
  LONG DestY;

  /* Make WellOrdered with top < bottom and left < right */
  RECTL_vMakeWellOrdered(DestRect);

#if defined(_M_IX86) && !defined(_MSC_VER)
  /* This is about 10% faster than the generic C code below */
  ULONG delta = DestSurface->lDelta;
  ULONG width = (DestRect->right - DestRect->left) ;
  PULONG pos =  (PULONG) ((PBYTE)DestSurface->pvScan0 + DestRect->top * delta + (DestRect->left<<1));
  color = (color&0xffff);  /* If the color value is "abcd", put "abcdabcd" into color */
  color += (color<<16);

  for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
  {
    __asm__ __volatile__ (
      "cld\n\t"
      "mov  %1,%%ebx\n\t"
      "mov  %2,%%edi\n\t"
      "test $0x03, %%edi\n\t"   /* Align to fullword boundary */
      "jz   1f\n\t"
      "stosw\n\t"
      "dec  %%ebx\n\t"
      "jz   2f\n"
      "1:\n\t"
      "mov  %%ebx,%%ecx\n\t"    /* Setup count of fullwords to fill */
      "shr  $1,%%ecx\n\t"
      "rep stosl\n\t"           /* The actual fill */
      "test $0x01, %%ebx\n\t"   /* One left to do at the right side? */
      "jz   2f\n\t"
      "stosw\n"
      "2:"
      :
      : "a" (color), "r" (width), "m" (pos)
      : "%ecx", "%ebx", "%edi");
    pos =(PULONG)((ULONG_PTR)pos + delta);
  }
#else /* _M_IX86 */

  for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
  {
    DIB_16BPP_HLine (DestSurface, DestRect->left, DestRect->right, DestY, color);
  }
#endif
  return TRUE;
}

DIB_16BPP_GetPixel()

ULONG DIB_16BPP_GetPixel	(	SURFOBJ *	,
		LONG	,
		LONG
	)

Definition at line 30 of file dib16bpp.c.

{
  PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta;
  PWORD addr = (PWORD)byteaddr + x;
  return (ULONG)(*addr);
}

Referenced by DIB_16BPP_AlphaBlend(), and DIB_1BPP_BitBltSrcCopy().

DIB_16BPP_HLine()

VOID DIB_16BPP_HLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 38 of file dib16bpp.c.

{
  PDWORD addr = (PDWORD)((PWORD)((PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta) + x1);

#if defined(_M_IX86) && !defined(_MSC_VER)
  /* This is about 10% faster than the generic C code below */
  LONG Count = x2 - x1;

  __asm__ __volatile__ (
    "  cld\n"
    "  mov  %0, %%eax\n"
    "  shl  $16, %%eax\n"
    "  andl $0xffff, %0\n"  /* If the pixel value is "abcd", put "abcdabcd" in %eax */
    "  or   %0, %%eax\n"
    "  mov  %2, %%edi\n"
    "  test $0x03, %%edi\n" /* Align to fullword boundary */
    "  jz   0f\n"
    "  stosw\n"
    "  dec  %1\n"
    "  jz   1f\n"
    "0:\n"
    "  mov  %1,%%ecx\n"     /* Setup count of fullwords to fill */
    "  shr  $1,%%ecx\n"
    "  rep stosl\n"         /* The actual fill */
    "  test $0x01, %1\n"    /* One left to do at the right side? */
    "  jz   1f\n"
    "  stosw\n"
    "1:\n"
    : /* no output */
  : "r"(c), "r"(Count), "m"(addr)
    : "%eax", "%ecx", "%edi");
#else /* _M_IX86 */
  LONG cx = x1;
  DWORD cc;

  if (0 != (cx & 0x01))
  {
    *((PWORD) addr) = (WORD)c;
    cx++;
    addr = (PDWORD)((PWORD)(addr) + 1);
  }
  cc = ((c & 0xffff) << 16) | (c & 0xffff);
  while(cx + 1 < x2)
  {
    *addr++ = cc;
    cx += 2;
  }
  if (cx < x2)
  {
    *((PWORD) addr) = (WORD)c;
  }
#endif /* _M_IX86 */
}

Referenced by DIB_16BPP_ColorFill().

DIB_16BPP_PutPixel()

VOID DIB_16BPP_PutPixel	(	SURFOBJ *	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 21 of file dib16bpp.c.

{
  PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta;
  PWORD addr = (PWORD)byteaddr + x;

  *addr = (WORD)c;
}

Referenced by DIB_16BPP_AlphaBlend(), and DIB_16BPP_BitBltSrcCopy().

DIB_16BPP_TransparentBlt()

BOOLEAN DIB_16BPP_TransparentBlt	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		XLATEOBJ *	,
		ULONG
	)

Definition at line 723 of file dib16bpp.c.

{
  LONG RoundedRight, X, Y, SourceX = 0, SourceY = 0, wd;
  ULONG *DestBits, Source, Dest;

  LONG DstHeight;
  LONG DstWidth;
  LONG SrcHeight;
  LONG SrcWidth;

  DstHeight = DestRect->bottom - DestRect->top;
  DstWidth = DestRect->right - DestRect->left;
  SrcHeight = SourceRect->bottom - SourceRect->top;
  SrcWidth = SourceRect->right - SourceRect->left;

  RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x1);
  DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 +
    (DestRect->left << 1) +
    DestRect->top * DestSurf->lDelta);
  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) << 1);

  for(Y = DestRect->top; Y < DestRect->bottom; Y++)
  {
    SourceY = SourceRect->top+(Y - DestRect->top) * SrcHeight / DstHeight;
    for(X = DestRect->left; X < RoundedRight; X += 2, DestBits++, SourceX += 2)
    {
      Dest = *DestBits;

      SourceX = SourceRect->left+(X - DestRect->left) * SrcWidth / DstWidth;
      if (SourceX >= 0 && SourceY >= 0 &&
        SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
      {
        Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
        if(Source != iTransColor)
        {
          Dest &= 0xFFFF0000;
          Dest |= (XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFFFF);
        }
      }

      SourceX = SourceRect->left+(X+1 - DestRect->left) * SrcWidth / DstWidth;
      if (SourceX >= 0 && SourceY >= 0 &&
        SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
      {
        Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
        if(Source != iTransColor)
        {
          Dest &= 0xFFFF;
          Dest |= (XLATEOBJ_iXlate(ColorTranslation, Source) << 16);
        }
      }

      *DestBits = Dest;
    }

    if(X < DestRect->right)
    {
      SourceX = SourceRect->left+(X - DestRect->left) * SrcWidth / DstWidth;
      if (SourceX >= 0 && SourceY >= 0 &&
        SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
      {
        Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
        if(Source != iTransColor)
        {
          *((USHORT*)DestBits) = (USHORT)XLATEOBJ_iXlate(ColorTranslation,
            Source);
        }
      }

      DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
    }

    DestBits = (ULONG*)((ULONG_PTR)DestBits + wd);
  }

  return TRUE;
}

DIB_16BPP_VLine()

VOID DIB_16BPP_VLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 94 of file dib16bpp.c.

{
#if defined(_M_IX86) && !defined(_MSC_VER)
  asm volatile(
    "   testl %2, %2"       "\n\t"
    "   jle   2f"           "\n\t"
    "   movl  %2, %%ecx"    "\n\t"
    "   shrl  $2, %2"       "\n\t"
    "   andl  $3, %%ecx"    "\n\t"
    "   jz    1f"           "\n\t"
    "0:"                    "\n\t"
    "   movw  %%ax, (%0)"   "\n\t"
    "   addl  %1, %0"       "\n\t"
    "   decl  %%ecx"        "\n\t"
    "   jnz   0b"           "\n\t"
    "   testl %2, %2"       "\n\t"
    "   jz    2f"           "\n\t"
    "1:"                    "\n\t"
    "   movw  %%ax, (%0)"   "\n\t"
    "   addl  %1, %0"       "\n\t"
    "   movw  %%ax, (%0)"   "\n\t"
    "   addl  %1, %0"       "\n\t"
    "   movw  %%ax, (%0)"   "\n\t"
    "   addl  %1, %0"       "\n\t"
    "   movw  %%ax, (%0)"   "\n\t"
    "   addl  %1, %0"       "\n\t"
    "   decl  %2"           "\n\t"
    "   jnz   1b"           "\n\t"
    "2:"                    "\n\t"
    : /* no output */
  : "r"((PBYTE)SurfObj->pvScan0 + (y1 * SurfObj->lDelta) + (x * sizeof (WORD))),
    "r"(SurfObj->lDelta), "r"(y2 - y1), "a"(c)
    : "cc", "memory", "%ecx");
#else
  PBYTE byteaddr = (PBYTE)(ULONG_PTR)SurfObj->pvScan0 + y1 * SurfObj->lDelta;
  PWORD addr = (PWORD)byteaddr + x;
  LONG lDelta = SurfObj->lDelta;

  byteaddr = (PBYTE)addr;
  while(y1++ < y2)
  {
    *addr = (WORD)c;

    byteaddr += lDelta;
    addr = (PWORD)byteaddr;
  }
#endif
}

DIB_1BPP_BitBlt()

BOOLEAN DIB_1BPP_BitBlt

(

PBLTINFO

)

Definition at line 481 of file dib1bpp.c.

{
  LONG DestX, DestY;
  LONG SourceX, SourceY;
  LONG PatternY = 0;
  ULONG Dest, Source = 0, Pattern = 0;
  ULONG Index;
  BOOLEAN UsesSource;
  BOOLEAN UsesPattern;
  PULONG DestBits;
  LONG RoundedRight;

  UsesSource = ROP4_USES_SOURCE(BltInfo->Rop4);
  UsesPattern = ROP4_USES_PATTERN(BltInfo->Rop4);

  RoundedRight = BltInfo->DestRect.right -
    ((BltInfo->DestRect.right - BltInfo->DestRect.left) & 31);
  SourceY = BltInfo->SourcePoint.y;

  if (UsesPattern)
  {
    if (BltInfo->PatternSurface)
    {
      PatternY = (BltInfo->DestRect.top + BltInfo->BrushOrigin.y) %
        BltInfo->PatternSurface->sizlBitmap.cy;
    }
    else
    {
      /* FIXME: Shouldn't it be expanded? */
      if (BltInfo->Brush)
        Pattern = BltInfo->Brush->iSolidColor;
    }
  }

  for (DestY = BltInfo->DestRect.top; DestY < BltInfo->DestRect.bottom; DestY++)
  {
    DestX = BltInfo->DestRect.left;
    SourceX = BltInfo->SourcePoint.x;
    DestBits = (PULONG)(
      (PBYTE)BltInfo->DestSurface->pvScan0 +
      (BltInfo->DestRect.left >> 3) +
      DestY * BltInfo->DestSurface->lDelta);

    if (DestX & 31)
    {
#if 0
      /* FIXME: This case is completely untested!!! */

      Dest = *((PBYTE)DestBits);
      NoBits = 31 - (DestX & 31);

      if (UsesSource)
      {
        Source = 0;
        /* FIXME: This is incorrect! */
        for (Index = 31 - NoBits; Index >= 0; Index++)
          Source |= (DIB_GetSource(SourceSurf, SourceX + Index, SourceY, ColorTranslation) << (31 - Index));
      }

      if (BltInfo->PatternSurface)
      {
        Pattern = 0;
        for (k = 31 - NoBits; k >= 0; k++)
          Pattern |= (DIB_GetSourceIndex(PatternObj, (X + BrushOrigin.x + k) % PatternWidth, PatternY) << (31 - k));
      }

      Dest = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern);
      Dest &= ~((1 << (31 - NoBits)) - 1);
      Dest |= *((PBYTE)DestBits) & ((1 << (31 - NoBits)) - 1);

      *DestBits = Dest;

      DestX += NoBits;
      SourceX += NoBits;
#endif
    }

    for (; DestX < RoundedRight; DestX += 32, DestBits++, SourceX += 32)
    {
      Dest = *DestBits;

      if (UsesSource)
      {
        Source = 0;
        for (Index = 0; Index < 8; Index++)
        {
          Source |= DIB_GetSource(BltInfo->SourceSurface, SourceX + Index, SourceY, BltInfo->XlateSourceToDest) << (7 - Index);
          Source |= DIB_GetSource(BltInfo->SourceSurface, SourceX + Index + 8, SourceY, BltInfo->XlateSourceToDest) << (8 + (7 - Index));
          Source |= DIB_GetSource(BltInfo->SourceSurface, SourceX + Index + 16, SourceY, BltInfo->XlateSourceToDest) << (16 + (7 - Index));
          Source |= DIB_GetSource(BltInfo->SourceSurface, SourceX + Index + 24, SourceY, BltInfo->XlateSourceToDest) << (24 + (7 - Index));
        }
      }

      if (BltInfo->PatternSurface)
      {
        Pattern = 0;
        for (Index = 0; Index < 8; Index++)
        {
          Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + Index) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << (7 - Index);
          Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + Index + 8) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << (8 + (7 - Index));
          Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + Index + 16) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << (16 + (7 - Index));
          Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + Index + 24) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << (24 + (7 - Index));
        }
      }

      *DestBits = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern);
    }

    if (DestX < BltInfo->DestRect.right)
    {
      for (; DestX < BltInfo->DestRect.right; DestX++, SourceX++)
      {
        Dest = DIB_1BPP_GetPixel(BltInfo->DestSurface, DestX, DestY);

        if (UsesSource)
        {
          Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
        }

        if (BltInfo->PatternSurface)
        {
          Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
        }

        DIB_1BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xF);
      }
    }

    SourceY++;
    if (BltInfo->PatternSurface)
    {
      PatternY++;
      PatternY %= BltInfo->PatternSurface->sizlBitmap.cy;
    }
  }

  return TRUE;
}

DIB_1BPP_BitBltSrcCopy()

BOOLEAN DIB_1BPP_BitBltSrcCopy

(

PBLTINFO

)

Definition at line 272 of file dib1bpp.c.

{
  ULONG Color;
  LONG i, j, sx, sy;
  BOOLEAN bTopToBottom, bLeftToRight;

  // This sets sy to the top line
  sy = BltInfo->SourcePoint.y;

  DPRINT("DIB_1BPP_BitBltSrcCopy: SrcSurf cx/cy (%d/%d), DestSuft cx/cy (%d/%d) dstRect: (%d,%d)-(%d,%d)\n",
         BltInfo->SourceSurface->sizlBitmap.cx, BltInfo->SourceSurface->sizlBitmap.cy,
         BltInfo->DestSurface->sizlBitmap.cx, BltInfo->DestSurface->sizlBitmap.cy,
         BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);

  /* Get back left to right flip here */
  bLeftToRight = (BltInfo->DestRect.left > BltInfo->DestRect.right);

  /* Check for top to bottom flip needed. */
  bTopToBottom = BltInfo->DestRect.top > BltInfo->DestRect.bottom;

  // Make WellOrdered with top < bottom and left < right
  RECTL_vMakeWellOrdered(&BltInfo->DestRect);

  DPRINT("BPP is '%d' & BltInfo->SourcePoint.x is '%d' & BltInfo->SourcePoint.y is '%d'.\n",
         BltInfo->SourceSurface->iBitmapFormat, BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);

  switch ( BltInfo->SourceSurface->iBitmapFormat )
  {
  case BMF_1BPP:
    DPRINT("1BPP Case Selected with DestRect Width of '%d'.\n",
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    DIB_1BPP_BitBltSrcCopy_From1BPP ( BltInfo->DestSurface, BltInfo->SourceSurface,
      BltInfo->XlateSourceToDest, &BltInfo->DestRect, &BltInfo->SourcePoint,
      bTopToBottom, bLeftToRight );
    break;

  case BMF_4BPP:
    DPRINT("4BPP Case Selected with DestRect Width of '%d'.\n",
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    if (bTopToBottom)
    {
      // This sets sy to the bottom line
      sy += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
       // This sets the sx to the rightmost pixel
       sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
      }

      for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
      {
        Color = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, DIB_4BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
        DIB_1BPP_PutPixel(BltInfo->DestSurface, i, j, Color);

        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(sy, bTopToBottom, 1);
    }
    break;

  case BMF_8BPP:
    DPRINT("8BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
           BltInfo->DestRect.left, BltInfo->DestRect.top,
           BltInfo->DestRect.right, BltInfo->DestRect.bottom,
           BltInfo->DestRect.right - BltInfo->DestRect.left);
 
    if (bTopToBottom)
    {
      // This sets sy to the bottom line
      sy += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
        // This sets sx to the rightmost pixel
        sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
      }

      for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
      {
        Color = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, DIB_8BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
        DIB_1BPP_PutPixel(BltInfo->DestSurface, i, j, Color);

        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(sy, bTopToBottom, 1);
    }
    break;

  case BMF_16BPP:
    DPRINT("16BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
           BltInfo->DestRect.left, BltInfo->DestRect.top,
           BltInfo->DestRect.right, BltInfo->DestRect.bottom,
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    if (bTopToBottom)
    {
      // This sets sy to the bottom line
      sy += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;;
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
        // This sets the sx to the rightmost pixel
        sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
      }

      for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
      {
        Color = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, DIB_16BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
        DIB_1BPP_PutPixel(BltInfo->DestSurface, i, j, Color);
        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(sy, bTopToBottom, 1);
    }
    break;

  case BMF_24BPP:

    DPRINT("24BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
           BltInfo->DestRect.left, BltInfo->DestRect.top,
           BltInfo->DestRect.right, BltInfo->DestRect.bottom,
           BltInfo->DestRect.right - BltInfo->DestRect.left);

      if (bTopToBottom)
      {
        // This sets sy to the bottom line
        sy += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;
      }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
        // This sets the sx to the rightmost pixel
        sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
      }

      for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
      {
        Color = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, DIB_24BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
        DIB_1BPP_PutPixel(BltInfo->DestSurface, i, j, Color);
        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(sy, bTopToBottom, 1);
    }
    break;

  case BMF_32BPP:

    DPRINT("32BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
           BltInfo->DestRect.left, BltInfo->DestRect.top,
           BltInfo->DestRect.right, BltInfo->DestRect.bottom,
           BltInfo->DestRect.right - BltInfo->DestRect.left);

    if (bTopToBottom)
    {
      // This sets sy to the bottom line
      sy += BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1;
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
        // This sets the sx to the rightmost pixel
        sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
      }

      for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
      {
        Color = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, DIB_32BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
        DIB_1BPP_PutPixel(BltInfo->DestSurface, i, j, Color);
        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(sy, bTopToBottom, 1);
    }
    break;

  default:
    DbgPrint("DIB_1BPP_BitBlt: Unhandled Source BPP: %u\n", BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
    return FALSE;
  }

  return TRUE;
}

DIB_1BPP_ColorFill()

BOOLEAN DIB_1BPP_ColorFill	(	SURFOBJ *	,
		RECTL *	,
		ULONG
	)

Definition at line 622 of file dib1bpp.c.

{
  LONG DestY;

  /* Make WellOrdered with top < bottom and left < right */
  RECTL_vMakeWellOrdered(DestRect);

  for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
  {
    DIB_1BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
  }
  return TRUE;
}

DIB_1BPP_GetPixel()

ULONG DIB_1BPP_GetPixel	(	SURFOBJ *	,
		LONG	,
		LONG
	)

Definition at line 30 of file dib1bpp.c.

{
  PBYTE addr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + (x >> 3);

  return (*addr & MASK1BPP(x) ? 1 : 0);
}

Referenced by DIB_16BPP_BitBltSrcCopy(), DIB_1BPP_BitBlt(), DIB_24BPP_BitBltSrcCopy(), DIB_32BPP_BitBltSrcCopy(), DIB_4BPP_BitBltSrcCopy(), and DIB_8BPP_BitBltSrcCopy().

DIB_1BPP_HLine()

VOID DIB_1BPP_HLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 38 of file dib1bpp.c.

{
  while(x1 < x2)
  {
    DIB_1BPP_PutPixel(SurfObj, x1, y, c);
    x1++;
  }
}

Referenced by DIB_1BPP_ColorFill(), and IntGdiCreateMaskFromRLE().

DIB_1BPP_PutPixel()

VOID DIB_1BPP_PutPixel	(	SURFOBJ *	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 19 of file dib1bpp.c.

{
  PBYTE addr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + (x >> 3);

  if (0 == (c & 0x01))
    *addr &= ~MASK1BPP(x);
  else
    *addr |= MASK1BPP(x);
}

Referenced by DIB_1BPP_BitBlt(), DIB_1BPP_BitBltSrcCopy(), DIB_1BPP_HLine(), and DIB_1BPP_VLine().

DIB_1BPP_TransparentBlt()

BOOLEAN DIB_1BPP_TransparentBlt	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		XLATEOBJ *	,
		ULONG
	)

Definition at line 638 of file dib1bpp.c.

{
  return FALSE;
}

DIB_1BPP_VLine()

VOID DIB_1BPP_VLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 48 of file dib1bpp.c.

{
  while(y1 < y2)
  {
    DIB_1BPP_PutPixel(SurfObj, x, y1, c);
    y1++;
  }
}

DIB_24BPP_AlphaBlend()

BOOLEAN DIB_24BPP_AlphaBlend	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		CLIPOBJ *	,
		XLATEOBJ *	,
		BLENDOBJ *
	)

Definition at line 725 of file dib24bpp.c.

{
   INT Rows, Cols, SrcX, SrcY;
   register PUCHAR Dst;
   BLENDFUNCTION BlendFunc;
   register NICEPIXEL32 DstPixel, SrcPixel;
   UCHAR Alpha;
   //UCHAR SrcBpp;

   DPRINT("DIB_24BPP_AlphaBlend: srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
          SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
          DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);

   BlendFunc = BlendObj->BlendFunction;
   if (BlendFunc.BlendOp != AC_SRC_OVER)
   {
      DPRINT1("BlendOp != AC_SRC_OVER\n");
      return FALSE;
   }
   if (BlendFunc.BlendFlags != 0)
   {
      DPRINT1("BlendFlags != 0\n");
      return FALSE;
   }
   if ((BlendFunc.AlphaFormat & ~AC_SRC_ALPHA) != 0)
   {
      DPRINT1("Unsupported AlphaFormat (0x%x)\n", BlendFunc.AlphaFormat);
      return FALSE;
   }
   if ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0 &&
       BitsPerFormat(Source->iBitmapFormat) != 32)
   {
      DPRINT1("Source bitmap must be 32bpp when AC_SRC_ALPHA is set\n");
      return FALSE;
   }

   Dst = (PUCHAR)((ULONG_PTR)Dest->pvScan0 + (DestRect->top * Dest->lDelta) +
                             (DestRect->left * 3));
   //SrcBpp = BitsPerFormat(Source->iBitmapFormat);

   Rows = 0;
   SrcY = SourceRect->top;
   while (++Rows <= DestRect->bottom - DestRect->top)
  {
    Cols = 0;
    SrcX = SourceRect->left;
    while (++Cols <= DestRect->right - DestRect->left)
    {
      SrcPixel.ul = DIB_GetSource(Source, SrcX, SrcY, ColorTranslation);
      SrcPixel.col.red = (SrcPixel.col.red * BlendFunc.SourceConstantAlpha) / 255;
      SrcPixel.col.green = (SrcPixel.col.green * BlendFunc.SourceConstantAlpha) / 255;
      SrcPixel.col.blue = (SrcPixel.col.blue * BlendFunc.SourceConstantAlpha) / 255;
      if (!(BlendFunc.AlphaFormat & AC_SRC_ALPHA))
      {
          Alpha = BlendFunc.SourceConstantAlpha ;
      }
      else
      {
        Alpha = (SrcPixel.col.alpha * BlendFunc.SourceConstantAlpha) / 255;
      }

      DstPixel.col.red = Clamp8((*Dst * (255 - Alpha)) / 255 + SrcPixel.col.red) ;
      DstPixel.col.green = Clamp8((*(Dst+1) * (255 - Alpha) / 255 + SrcPixel.col.green)) ;
      DstPixel.col.blue = Clamp8((*(Dst+2) * (255 - Alpha)) / 255 + SrcPixel.col.blue) ;
      *Dst++ = DstPixel.col.red;
      *Dst++ = DstPixel.col.green;
      *Dst++ = DstPixel.col.blue;
      SrcX = SourceRect->left + (Cols*(SourceRect->right - SourceRect->left))/(DestRect->right - DestRect->left);
    }
    Dst = (PUCHAR)((ULONG_PTR)Dest->pvScan0 + ((DestRect->top + Rows) * Dest->lDelta) +
                (DestRect->left*3));
    SrcY = SourceRect->top + (Rows*(SourceRect->bottom - SourceRect->top))/(DestRect->bottom - DestRect->top);
  }

   return TRUE;
}

DIB_24BPP_BitBlt()

BOOLEAN DIB_24BPP_BitBlt

(

PBLTINFO

)

Definition at line 485 of file dib24bpp.c.

{
   LONG DestX, DestY;
   LONG SourceX, SourceY;
   LONG PatternY = 0;
   ULONG Dest, Source = 0, Pattern = 0;
   BOOL UsesSource;
   BOOL UsesPattern;
   PBYTE DestBits;

   UsesSource = ROP4_USES_SOURCE(BltInfo->Rop4);
   UsesPattern = ROP4_USES_PATTERN(BltInfo->Rop4);

   SourceY = BltInfo->SourcePoint.y;
   DestBits = (PBYTE)(
      (PBYTE)BltInfo->DestSurface->pvScan0 +
      (BltInfo->DestRect.left << 1) + BltInfo->DestRect.left +
      BltInfo->DestRect.top * BltInfo->DestSurface->lDelta);

   if (UsesPattern)
   {
      if (BltInfo->PatternSurface)
      {
         PatternY = (BltInfo->DestRect.top - BltInfo->BrushOrigin.y) %
                    BltInfo->PatternSurface->sizlBitmap.cy;
      }
      else
      {
         if (BltInfo->Brush)
         {
            Pattern = BltInfo->Brush->iSolidColor;
         }
      }
   }

   for (DestY = BltInfo->DestRect.top; DestY < BltInfo->DestRect.bottom; DestY++)
   {
      SourceX = BltInfo->SourcePoint.x;

      for (DestX = BltInfo->DestRect.left; DestX < BltInfo->DestRect.right; DestX++, DestBits += 3, SourceX++)
      {
         Dest = *((PUSHORT)DestBits) + (*(DestBits + 2) << 16);

         if (UsesSource)
         {
            Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
         }

         if (BltInfo->PatternSurface)
         {
            Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX - BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
         }

         Dest = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xFFFFFF;
         *(PUSHORT)(DestBits) = Dest & 0xFFFF;
         *(DestBits + 2) = (BYTE)(Dest >> 16);
      }

      SourceY++;
      if (BltInfo->PatternSurface)
      {
         PatternY++;
         PatternY %= BltInfo->PatternSurface->sizlBitmap.cy;
      }
      DestBits -= (BltInfo->DestRect.right - BltInfo->DestRect.left) * 3;
      DestBits += BltInfo->DestSurface->lDelta;
   }

   return TRUE;
}

DIB_24BPP_BitBltSrcCopy()

BOOLEAN DIB_24BPP_BitBltSrcCopy

(

PBLTINFO

)

Definition at line 54 of file dib24bpp.c.

{
  LONG     i, j, sx, sy, xColor, f1;
  PBYTE    SourceBits, DestBits, SourceLine, DestLine;
  PBYTE    SourceBits_4BPP, SourceLine_4BPP;
  PWORD    SourceBits_16BPP, SourceLine_16BPP;
  BOOLEAN  bTopToBottom, bLeftToRight;

  DPRINT("DIB_24BPP_BitBltSrcCopy: SrcSurf cx/cy (%d/%d), DestSuft cx/cy (%d/%d) dstRect: (%d,%d)-(%d,%d)\n",
         BltInfo->SourceSurface->sizlBitmap.cx, BltInfo->SourceSurface->sizlBitmap.cy,
         BltInfo->DestSurface->sizlBitmap.cx, BltInfo->DestSurface->sizlBitmap.cy,
         BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);

  /* Get back left to right flip here */
  bLeftToRight = (BltInfo->DestRect.left > BltInfo->DestRect.right);

  /* Check for top to bottom flip needed. */
  bTopToBottom = BltInfo->DestRect.top > BltInfo->DestRect.bottom;

  DPRINT("BltInfo->SourcePoint.x is '%d' and BltInfo->SourcePoint.y is '%d'.\n",
         BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);

  /* Make WellOrdered by making top < bottom and left < right */
  RECTL_vMakeWellOrdered(&BltInfo->DestRect);

  DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left * 3;

  switch(BltInfo->SourceSurface->iBitmapFormat)
  {
    case BMF_1BPP:
      sx = BltInfo->SourcePoint.x;

      /* This sets sy to the top line */
      sy = BltInfo->SourcePoint.y;

      if (bTopToBottom)
      {
        /* This sets sy to the bottom line */
        sy += BltInfo->SourceSurface->lDelta * (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
      }

      for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
      {
        sx = BltInfo->SourcePoint.x;

        if (bLeftToRight)
        {
          /* This sets sx to the rightmost pixel */
          sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        }

        for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
        {
          if(DIB_1BPP_GetPixel(BltInfo->SourceSurface, sx, sy) == 0)
          {
            DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
          } else {
            DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 1));
          }
          DEC_OR_INC(sx, bLeftToRight, 1);
        }
        DEC_OR_INC(sy, bTopToBottom, 1);
      }
      break;

    case BMF_4BPP:
      DPRINT("4BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      /* This sets SourceBits_4BPP to the top line */
      SourceBits_4BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + (BltInfo->SourcePoint.x >> 1);

      if (bTopToBottom)
      {
        /* This sets SourceBits_4BPP to the bottom line */
        SourceBits_4BPP += BltInfo->SourceSurface->lDelta * (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
      }

      for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
      {
        SourceLine_4BPP = SourceBits_4BPP;
        DestLine = DestBits;
        sx = BltInfo->SourcePoint.x;

        if (bLeftToRight)
        {
          /* This sets sx to the rightmost pixel */
          sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        }

        f1 = sx & 1;

        for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
        {
          xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest,
              (*SourceLine_4BPP & altnotmask[f1]) >> (4 * (1 - f1)));
          *DestLine++ = xColor & 0xff;
          *(PWORD)DestLine = (WORD)(xColor >> 8);
          DestLine += 2;
          if(f1 == 1) {
            DEC_OR_INC(SourceLine_4BPP, bLeftToRight, 1);
            f1 = 0;
          } 
          else
          { 
            f1 = 1;
          }
          DEC_OR_INC(sx, bLeftToRight, 1);
        }
        DEC_OR_INC(SourceBits_4BPP, bTopToBottom, BltInfo->SourceSurface->lDelta);
        DestBits += BltInfo->DestSurface->lDelta;
      }
      break;

    case BMF_8BPP:
      DPRINT("8BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      /* This sets SourceLine to the top line */
      SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;

      if (bTopToBottom)
      {
        /* This sets SourceLine to the bottom line */
        SourceLine += BltInfo->SourceSurface->lDelta * (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
      }
      DestLine = DestBits;

      for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
      {
        SourceBits = SourceLine;
        DestBits = DestLine;

        if (bLeftToRight)
        {
          /* This sets the SourceBits to the rightmost pixel */
          SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        }

        for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
        {
          xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceBits);
          *DestBits = xColor & 0xff;
          *(PWORD)(DestBits + 1) = (WORD)(xColor >> 8);
          DEC_OR_INC(SourceBits, bLeftToRight, 1);
          DestBits += 3;
        }

        DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
        DestLine += BltInfo->DestSurface->lDelta;
      }
      break;

    case BMF_16BPP:
      DPRINT("16BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      /* This sets SourceBits_16BPP to the top line */
      SourceBits_16BPP = (PWORD)((PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x);

      if (bTopToBottom)
      {
        /* This sets SourceBits_16BPP to the bottom line */
        SourceBits_16BPP += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;
      }

      for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
      {
        SourceLine_16BPP = SourceBits_16BPP;
        DestLine = DestBits;

        if (bLeftToRight)
        {
          /* This sets the SourceLine_16BPP to the rightmost pixel */
          SourceLine_16BPP += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        }

        for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
        {
          xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceLine_16BPP);
          *DestLine++ = xColor & 0xff;
          *(PWORD)DestLine = (WORD)(xColor >> 8);
          DestLine += 2;
          DEC_OR_INC(SourceLine_16BPP, bLeftToRight, 1);
        }
        if (bTopToBottom)
        {
          SourceBits_16BPP = (PWORD)((PBYTE)SourceBits_16BPP - BltInfo->SourceSurface->lDelta);
        }
        else
        {
          SourceBits_16BPP = (PWORD)((PBYTE)SourceBits_16BPP + BltInfo->SourceSurface->lDelta);
        }
        DestBits += BltInfo->DestSurface->lDelta;
      }
      break;

    case BMF_24BPP:
      DPRINT("24BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      /* Check for no flips here because we are about to use RtlMoveMemory and it can only do increasing src & dst */
      if ((BltInfo->XlateSourceToDest == NULL ||
        (BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL) != 0) &&
        (!bTopToBottom && !bLeftToRight))
      {
        DPRINT("XO_TRIVIAL is TRUE.\n");
        if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
        {
          /* This sets SourceBits to the top line */
          SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
          for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
          {
            RtlMoveMemory(DestBits, SourceBits, 3 * (BltInfo->DestRect.right - BltInfo->DestRect.left));
            SourceBits += BltInfo->SourceSurface->lDelta;
            DestBits += BltInfo->DestSurface->lDelta;
          }
        }
        else
        {
          SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
          DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 3 * BltInfo->DestRect.left;
          for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
          {
            RtlMoveMemory(DestBits, SourceBits, 3 * (BltInfo->DestRect.right - BltInfo->DestRect.left));
            SourceBits -= BltInfo->SourceSurface->lDelta;
            DestBits -= BltInfo->DestSurface->lDelta;
          }
        }
      }
      else
      {
        DPRINT("XO_TRIVIAL is NOT TRUE.\n");

        if (!bTopToBottom && !bLeftToRight)
      /* **Note: Indent is purposefully less than desired to keep reviewable differences to a minimum for PR** */
      {
        sx = BltInfo->SourcePoint.x;
        sy = BltInfo->SourcePoint.y;

        for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
        {
          sx = BltInfo->SourcePoint.x;
          for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
          {
            DWORD pixel = DIB_24BPP_GetPixel(BltInfo->SourceSurface, sx, sy);
            DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, pixel));
            sx++;
          }
          sy++;
        }
      }
        else
        {
          /* Buffering for source and destination flip overlaps. Fixes KHMZ MirrorTest CORE-16642 */
          BOOL TopToBottomDone = FALSE;

          if (bLeftToRight)
          {
            DPRINT("Flip is bLeftToRight.\n");
            DWORD  Index;

            /* Allocate enough pixels for a row in DWORD's */
            DWORD *store = ExAllocatePoolWithTag(NonPagedPool,
              (BltInfo->DestRect.right - BltInfo->DestRect.left + 1) * 4, TAG_DIB);
            if (store == NULL)
            {
              DPRINT1("Storage Allocation Failed.\n");
              return FALSE;
            }

            sx = BltInfo->SourcePoint.x;
            /* This sets sy to the top line */
            sy = BltInfo->SourcePoint.y;

            /* This sets sx to the rightmost pixel */
            sx = BltInfo->SourcePoint.x + (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);

            for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
            {

              /* This sets sx to the rightmost pixel */
              sx = BltInfo->SourcePoint.x + (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);

              Index = 0;

              // Read right to left and store
              for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
              {
                store[Index] = DIB_24BPP_GetPixel(BltInfo->SourceSurface, sx, sy);
                Index++;
                sx--;
              }

              Index = 0;

              // Write left to right to pixel
              for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
              {
                DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, store[Index]));
                Index++;
              }
              sy++;
            }
            ExFreePoolWithTag(store, TAG_DIB);
            TopToBottomDone = TRUE;
          }

          if (bTopToBottom)
          {
            DPRINT("Flip is bTopToBottom.\n");
            DWORD  Index;

            /* Allocate enough pixels for a column in DWORD's */
            DWORD *store = ExAllocatePoolWithTag(NonPagedPool,
              (BltInfo->DestRect.bottom - BltInfo->DestRect.top + 1) * 4, TAG_DIB);
            if (store == NULL)
            {
              DPRINT1("Storage Allocation Failed.\n");
              return FALSE;
            }

            /* The TopToBottomDone flag indicates that we are flipping for bTopToBottom and bLeftToRight
             * and have already completed the bLeftToRight. So we will lose our first flip output
             * unless we work with its output which is at the destination site. So in this case
             * our new Source becomes the previous outputs Destination.
             */

            if (TopToBottomDone)
            {
             sx = BltInfo->DestRect.left;
              sy = BltInfo->DestRect.top;

              /* This sets sy to the bottom line */
              sy += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
            }
            else
            {
              sx = BltInfo->SourcePoint.x;

              /* This sets sy to the top line */
              sy = BltInfo->SourcePoint.y;

              /* This sets sy to the bottom line */
              sy = BltInfo->SourcePoint.y + (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
            }

            for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
            {

              /* This sets sy to the bottom line */
              sy = BltInfo->SourcePoint.y + (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
              Index = 0;

              /* Read bottom to top and store */
              for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
              {
                if (TopToBottomDone)
                {
                  store[Index] = DIB_24BPP_GetPixel(BltInfo->DestSurface, sx, sy);
                }
                else
                {
                  store[Index] = DIB_24BPP_GetPixel(BltInfo->SourceSurface, sx, sy);
                }
                Index++;
                sy--;
              }

              Index = 0;

              for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
              {
                DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, store[Index]));
                Index++;
              }
              sx++;
            }
            ExFreePoolWithTag(store, TAG_DIB);
          }

        }
      }
      break;

    case BMF_32BPP:
      DPRINT("32BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;

      if (bTopToBottom)
      {
        /* This sets SourceLine to the bottom line */
        SourceLine += BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1;
      }
      DestLine = DestBits;

      for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
      {
        SourceBits = SourceLine;
        DestBits = DestLine;

        if (bLeftToRight)
        {
          /* This sets SourceBits to the rightmost pixel */
          SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 4;
        }
        for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
        {
          xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *((PDWORD) SourceBits));
          *DestBits = xColor & 0xff;
          *(PWORD)(DestBits + 1) = (WORD)(xColor >> 8);
          DEC_OR_INC(SourceBits, bLeftToRight, 4);
          DestBits += 3;
        }

        DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
        DestLine += BltInfo->DestSurface->lDelta;
      }
      break;

    default:
      DbgPrint("DIB_24BPP_Bitblt: Unhandled Source BPP: %u\n", BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
      return FALSE;
  }

  return TRUE;
}

DIB_24BPP_ColorFill()

BOOLEAN DIB_24BPP_ColorFill	(	SURFOBJ *	,
		RECTL *	,
		ULONG
	)

Definition at line 558 of file dib24bpp.c.

{
  LONG DestY;

  /* Make WellOrdered by making top < bottom and left < right */
  RECTL_vMakeWellOrdered(DestRect);

#if defined(_M_IX86) && !defined(_MSC_VER)
  PBYTE xaddr = (PBYTE)DestSurface->pvScan0 + DestRect->top * DestSurface->lDelta + (DestRect->left << 1) + DestRect->left;
  PBYTE addr;
  ULONG Count;
  ULONG xCount=DestRect->right - DestRect->left;

  for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
  {
    Count = xCount;
    addr = xaddr;
    xaddr = (PBYTE)((ULONG_PTR)addr + DestSurface->lDelta);

    if (Count < 8)
    {
      /* For small fills, don't bother doing anything fancy */
      while (Count--)
        {
          *(PUSHORT)(addr) = color;
          addr += 2;
          *(addr) = color >> 16;
          addr += 1;
        }
    }
    else
    {
      /* Align to 4-byte address */
      while (0 != ((ULONG_PTR) addr & 0x3))
      {
        *(PUSHORT)(addr) = color;
        addr += 2;
        *(addr) = color >> 16;
        addr += 1;
        Count--;
      }
      /* If the color we need to fill with is 0ABC, then the final mem pattern
       * (note little-endianness) would be:
       *
       * |C.B.A|C.B.A|C.B.A|C.B.A|   <- pixel borders
       * |C.B.A.C|B.A.C.B|A.C.B.A|   <- ULONG borders
       *
       * So, taking endianness into account again, we need to fill with these
       * ULONGs: CABC BCAB ABCA */

      /* This is about 30% faster than the generic C code below */
      __asm__ __volatile__ (
        "movl %1, %%ecx\n\t"
        "andl $0xffffff, %%ecx\n\t"     /* 0ABC */
        "movl %%ecx, %%ebx\n\t"         /* Construct BCAB in ebx */
        "shrl $8, %%ebx\n\t"
        "movl %%ecx, %%eax\n\t"
        "shll $16, %%eax\n\t"
        "orl  %%eax, %%ebx\n\t"
        "movl %%ecx, %%edx\n\t"         /* Construct ABCA in edx */
        "shll $8, %%edx\n\t"
        "movl %%ecx, %%eax\n\t"
        "shrl $16, %%eax\n\t"
        "orl  %%eax, %%edx\n\t"
        "movl %%ecx, %%eax\n\t"         /* Construct CABC in eax */
        "shll $24, %%eax\n\t"
        "orl  %%ecx, %%eax\n\t"
        "movl %2, %%ecx\n\t"            /* Load count */
        "shr  $2, %%ecx\n\t"
        "movl %3, %%edi\n"              /* Load dest */
        "1:\n\t"
        "movl %%eax, (%%edi)\n\t"       /* Store 4 pixels, 12 bytes */
        "movl %%ebx, 4(%%edi)\n\t"
        "movl %%edx, 8(%%edi)\n\t"
        "addl $12, %%edi\n\t"
        "dec  %%ecx\n\t"
        "jnz  1b\n\t"
        "movl %%edi, %0"
        : "=m"(addr)
        : "m"(color), "m"(Count), "m"(addr)
        : "%eax", "%ebx", "%ecx", "%edx", "%edi");
      Count = Count & 0x03;
      while (0 != Count--)
      {
        *(PUSHORT)(addr) = color;
        addr += 2;
        *(addr) = color >> 16;
        addr += 1;
      }
    }
  }
#else

  for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
  {
    DIB_24BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
  }
#endif
  return TRUE;
}

DIB_24BPP_GetPixel()

ULONG DIB_24BPP_GetPixel	(	SURFOBJ *	,
		LONG	,
		LONG
	)

Definition at line 29 of file dib24bpp.c.

{
  PBYTE addr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + (x << 1) + x;
  return *(PUSHORT)(addr) + (*(addr + 2) << 16);
}

Referenced by DIB_1BPP_BitBltSrcCopy(), and DIB_24BPP_BitBltSrcCopy().

DIB_24BPP_HLine()

VOID DIB_24BPP_HLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 16 of file dib24bppc.c.

{
  PBYTE addr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + (x1 << 1) + x1;
  ULONG Count = x2 - x1;

  if (Count < 8)
  {
    /* For small fills, don't bother doing anything fancy */
    while (Count--)
    {
      *(PUSHORT)(addr) = c;
      addr += 2;
      *(addr) = c >> 16;
      addr += 1;
    }
  }
  else
  {
    ULONG Fill[3];
    ULONG MultiCount;

    /* Align to 4-byte address */
    while (0 != ((ULONG_PTR) addr & 0x3))
    {
      *(PUSHORT)(addr) = c;
      addr += 2;
      *(addr) = c >> 16;
      addr += 1;
      Count--;
    }
    /* If the color we need to fill with is 0ABC, then the final mem pattern
    * (note little-endianness) would be:
    *
    * |C.B.A|C.B.A|C.B.A|C.B.A|   <- pixel borders
    * |C.B.A.C|B.A.C.B|A.C.B.A|   <- ULONG borders
    *
    * So, taking endianness into account again, we need to fill with these
    * ULONGs: CABC BCAB ABCA */

    c = c & 0xffffff;                /* 0ABC */
    Fill[0] = c | (c << 24);         /* CABC */
    Fill[1] = (c >> 8) | (c << 16);  /* BCAB */
    Fill[2] = (c << 8) | (c >> 16);  /* ABCA */
    MultiCount = Count / 4;
    do
    {
      *(PULONG)addr = Fill[0];
      addr += 4;
      *(PULONG)addr = Fill[1];
      addr += 4;
      *(PULONG)addr = Fill[2];
      addr += 4;
    }
    while (0 != --MultiCount);

    Count = Count & 0x03;
    while (0 != Count--)
    {
      *(PUSHORT)(addr) = c;
      addr += 2;
      *(addr) = c >> 16;
      addr += 1;
    }
  }
}

Referenced by DIB_24BPP_ColorFill().

DIB_24BPP_PutPixel()

VOID DIB_24BPP_PutPixel	(	SURFOBJ *	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 21 of file dib24bpp.c.

{
  PBYTE addr = (PBYTE)SurfObj->pvScan0 + (y * SurfObj->lDelta) + (x << 1) + x;
  *(PUSHORT)(addr) = c & 0xFFFF;
  *(addr + 2) = (c >> 16) & 0xFF;
}

Referenced by DIB_24BPP_BitBltSrcCopy().

DIB_24BPP_TransparentBlt()

BOOLEAN DIB_24BPP_TransparentBlt	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		XLATEOBJ *	,
		ULONG
	)

Definition at line 660 of file dib24bpp.c.

{
  LONG X, Y, SourceX, SourceY = 0, wd;
  ULONG Source = 0, Dest;
  BYTE *DestBits;

  LONG DstHeight;
  LONG DstWidth;
  LONG SrcHeight;
  LONG SrcWidth;

  DstHeight = DestRect->bottom - DestRect->top;
  DstWidth = DestRect->right - DestRect->left;
  SrcHeight = SourceRect->bottom - SourceRect->top;
  SrcWidth = SourceRect->right - SourceRect->left;

  DestBits = (BYTE*)((PBYTE)DestSurf->pvScan0 +
                      (DestRect->left * 3) +
                      DestRect->top * DestSurf->lDelta);
  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) * 3);

  for(Y = DestRect->top; Y < DestRect->bottom; Y++)
  {
    SourceY = SourceRect->top+(Y - DestRect->top) * SrcHeight / DstHeight;
    for(X = DestRect->left; X < DestRect->right; X++, DestBits += 3)
    {
      SourceX = SourceRect->left+(X - DestRect->left) * SrcWidth / DstWidth;
      if (SourceX >= 0 && SourceY >= 0 &&
          SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
      {
        Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
        if(Source != iTransColor)
        {
          Dest = XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFFFFFF;
           *(PUSHORT)(DestBits) = Dest & 0xFFFF;
           *(DestBits + 2) = (BYTE)(Dest >> 16);
        }
      }
    }

    DestBits = (BYTE*)((ULONG_PTR)DestBits + wd);
  }

  return TRUE;
}

DIB_24BPP_VLine()

VOID DIB_24BPP_VLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 38 of file dib24bpp.c.

{
  PBYTE addr = (PBYTE)SurfObj->pvScan0 + y1 * SurfObj->lDelta + (x << 1) + x;
  LONG lDelta = SurfObj->lDelta;

  c &= 0xFFFFFF;
  while(y1++ < y2)
  {
    *(PUSHORT)(addr) = c & 0xFFFF;
    *(addr + 2) = (BYTE)(c >> 16);

    addr += lDelta;
  }
}

DIB_32BPP_AlphaBlend()

BOOLEAN DIB_32BPP_AlphaBlend	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		CLIPOBJ *	,
		XLATEOBJ *	,
		BLENDOBJ *
	)

Definition at line 763 of file dib32bpp.c.

{
  INT Rows, Cols, SrcX, SrcY;
  register PULONG Dst;
  BLENDFUNCTION BlendFunc;
  register NICEPIXEL32 DstPixel, SrcPixel;
  UCHAR Alpha, SrcBpp;

  DPRINT("DIB_32BPP_AlphaBlend: SourceRect: (%d,%d)-(%d,%d), DestRect: (%d,%d)-(%d,%d)\n",
    SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
    DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);

  BlendFunc = BlendObj->BlendFunction;
  if (BlendFunc.BlendOp != AC_SRC_OVER)
  {
    DPRINT1("BlendOp != AC_SRC_OVER\n");
    return FALSE;
  }
  if (BlendFunc.BlendFlags != 0)
  {
    DPRINT1("BlendFlags != 0\n");
    return FALSE;
  }
  if ((BlendFunc.AlphaFormat & ~AC_SRC_ALPHA) != 0)
  {
    DPRINT1("Unsupported AlphaFormat (0x%x)\n", BlendFunc.AlphaFormat);
    return FALSE;
  }
  if ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0 &&
       BitsPerFormat(Source->iBitmapFormat) != 32)
  {
    DPRINT1("Source bitmap must be 32bpp when AC_SRC_ALPHA is set\n");
    return FALSE;
  }

  Dst = (PULONG)((ULONG_PTR)Dest->pvScan0 + (DestRect->top * Dest->lDelta) +
    (DestRect->left << 2));
  SrcBpp = BitsPerFormat(Source->iBitmapFormat);

  Rows = 0;
   SrcY = SourceRect->top;
   while (++Rows <= DestRect->bottom - DestRect->top)
  {
    Cols = 0;
    SrcX = SourceRect->left;
    while (++Cols <= DestRect->right - DestRect->left)
    {
      SrcPixel.ul = DIB_GetSource(Source, SrcX, SrcY, ColorTranslation);
      SrcPixel.col.red = (SrcPixel.col.red * BlendFunc.SourceConstantAlpha) / 255;
      SrcPixel.col.green = (SrcPixel.col.green * BlendFunc.SourceConstantAlpha)  / 255;
      SrcPixel.col.blue = (SrcPixel.col.blue * BlendFunc.SourceConstantAlpha) / 255;
      SrcPixel.col.alpha = (32 == SrcBpp) ?
                        (SrcPixel.col.alpha * BlendFunc.SourceConstantAlpha) / 255 :
                        BlendFunc.SourceConstantAlpha ;

      Alpha = ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0) ?
           SrcPixel.col.alpha : BlendFunc.SourceConstantAlpha ;

      DstPixel.ul = *Dst;
      DstPixel.col.red = Clamp8((DstPixel.col.red * (255 - Alpha)) / 255 + SrcPixel.col.red) ;
      DstPixel.col.green = Clamp8((DstPixel.col.green * (255 - Alpha)) / 255 + SrcPixel.col.green) ;
      DstPixel.col.blue = Clamp8((DstPixel.col.blue * (255 - Alpha)) / 255 + SrcPixel.col.blue) ;
      DstPixel.col.alpha = Clamp8((DstPixel.col.alpha * (255 - Alpha)) / 255 + SrcPixel.col.alpha) ;
      *Dst++ = DstPixel.ul;
      SrcX = SourceRect->left + (Cols*(SourceRect->right - SourceRect->left))/(DestRect->right - DestRect->left);
    }
    Dst = (PULONG)((ULONG_PTR)Dest->pvScan0 + ((DestRect->top + Rows) * Dest->lDelta) +
                (DestRect->left << 2));
    SrcY = SourceRect->top + (Rows*(SourceRect->bottom - SourceRect->top))/(DestRect->bottom - DestRect->top);
  }

  return TRUE;
}

DIB_32BPP_BitBlt()

BOOLEAN DIB_32BPP_BitBlt

(

PBLTINFO

)

DIB_32BPP_BitBltSrcCopy()

BOOLEAN DIB_32BPP_BitBltSrcCopy

(

PBLTINFO

)

Definition at line 54 of file dib32bpp.c.

{
  LONG     i, j, sx, sy, xColor, f1;
  PBYTE    SourceBits, DestBits, SourceLine, DestLine;
  PBYTE    SourceBitsT, SourceBitsB, DestBitsT, DestBitsB;
  PBYTE    SourceBits_4BPP, SourceLine_4BPP;
  PDWORD   Source32, Dest32;
  DWORD    Index, DestWidth, DestHeight;
  BOOLEAN  bTopToBottom, bLeftToRight;
  BOOLEAN  blDeltaSrcNeg, blDeltaDestNeg;
  BOOLEAN  blDeltaAdjustDone = FALSE;

  DPRINT("DIB_32BPP_BitBltSrcCopy: SourcePoint (%d, %d), SourceSurface cx/cy (%d/%d), "
         "DestSurface cx/cy (%d/%d) DestRect: (%d,%d)-(%d,%d)\n",
         BltInfo->SourcePoint.x, BltInfo->SourcePoint.y,
         BltInfo->SourceSurface->sizlBitmap.cx, BltInfo->SourceSurface->sizlBitmap.cy,
         BltInfo->DestSurface->sizlBitmap.cx, BltInfo->DestSurface->sizlBitmap.cy,
         BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);

  DPRINT("BltInfo->DestSurface->lDelta is '%d' and BltInfo->SourceSurface->lDelta is '%d'.\n",
           BltInfo->DestSurface->lDelta,  BltInfo->SourceSurface->lDelta);

  DPRINT("iBitmapFormat is %d and width,height is (%d,%d).\n", BltInfo->SourceSurface->iBitmapFormat,
         BltInfo->DestRect.right - BltInfo->DestRect.left, BltInfo->DestRect.bottom - BltInfo->DestRect.top);

  DPRINT("BltInfo->SourcePoint.x is '%d' and BltInfo->SourcePoint.y is '%d'.\n",
         BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);

  /* Do not deal with negative numbers for these values */
  if ((BltInfo->DestRect.left < 0) || (BltInfo->DestRect.top < 0) || 
      (BltInfo->DestRect.right < 0) || (BltInfo->DestRect.bottom < 0))
    return FALSE;

  /* Detect negative lDelta's meaning Bottom-Up bitmaps */
  blDeltaSrcNeg = BltInfo->SourceSurface->lDelta < 0;
  blDeltaDestNeg = BltInfo->DestSurface->lDelta < 0;

  /* Get back left to right flip here */
  bLeftToRight = BltInfo->DestRect.left > BltInfo->DestRect.right;

  /* Check for top to bottom flip needed. */
  bTopToBottom = BltInfo->DestRect.top > BltInfo->DestRect.bottom;

  DPRINT("bTopToBottom is '%d' and DestSurface->lDelta < 0 is '%d' and SourceSurface->lDelta < 0 is '%d'.\n",
           bTopToBottom, BltInfo->DestSurface->lDelta < 0 ? 1 : 0,  BltInfo->SourceSurface->lDelta < 0 ? 1 : 0);

  /* Make WellOrdered with top < bottom and left < right */
  RECTL_vMakeWellOrdered(&BltInfo->DestRect);

  DestWidth = BltInfo->DestRect.right - BltInfo->DestRect.left;
  DestHeight = BltInfo->DestRect.bottom - BltInfo->DestRect.top;

  DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
    + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta)
    + 4 * BltInfo->DestRect.left;

  DPRINT("iBitmapFormat is %d and width,height is (%d,%d).\n", BltInfo->SourceSurface->iBitmapFormat,
         DestWidth, DestHeight);

  switch (BltInfo->SourceSurface->iBitmapFormat)
  {
  case BMF_1BPP:
    DPRINT("1BPP Case Selected with DestRect Width of '%d'.\n",
           DestWidth);

    if (bLeftToRight || bTopToBottom)
    DPRINT("bLeftToRight is '%d' and bTopToBottom is '%d'.\n", bLeftToRight, bTopToBottom);

    sx = BltInfo->SourcePoint.x;

    /* This sets sy to the top line */
    sy = BltInfo->SourcePoint.y;

    if (bTopToBottom)
    {
      /* This sets sy to the bottom line */
      sy += BltInfo->SourceSurface->lDelta * (DestHeight - 1);
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
        /* This sets the sx to the rightmost pixel */
        sx += (DestWidth - 1);
      }

      for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
      {
        if (DIB_1BPP_GetPixel(BltInfo->SourceSurface, sx, sy) == 0)
        {
          DIB_32BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
        }
        else
        {
          DIB_32BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 1));
        }

        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(sy, bTopToBottom, 1);
    }
    break;

  case BMF_4BPP:
    DPRINT("4BPP Case Selected with DestRect Width of '%d'.\n",
           DestWidth);

    if (bLeftToRight || bTopToBottom)
    DPRINT("bLeftToRight is '%d' and bTopToBottom is '%d'.\n", bLeftToRight, bTopToBottom);

    /* This sets SourceBits_4BPP to the top line */
    SourceBits_4BPP = (PBYTE)BltInfo->SourceSurface->pvScan0
      + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
      + (BltInfo->SourcePoint.x >> 1);

    if (bTopToBottom)
    {
      /* This sets SourceBits_4BPP to the bottom line */
      SourceBits_4BPP += BltInfo->SourceSurface->lDelta * (DestHeight - 1);
    }

    for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
    {
      SourceLine_4BPP = SourceBits_4BPP;
      sx = BltInfo->SourcePoint.x;

      if (bLeftToRight)
      {
        /* This sets sx to the rightmost pixel */
        sx += (DestWidth - 1);
      }

      f1 = sx & 1;

      for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
      {
        xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest,
          (*SourceLine_4BPP & altnotmask[f1]) >> (4 * (1 - f1)));
        DIB_32BPP_PutPixel(BltInfo->DestSurface, i, j, xColor);
        if (f1 == 1) {
          DEC_OR_INC(SourceLine_4BPP, bLeftToRight, 1);
          f1 = 0;
        } else {
          f1 = 1;
        }
        DEC_OR_INC(sx, bLeftToRight, 1);
      }
      DEC_OR_INC(SourceBits_4BPP, bTopToBottom, BltInfo->SourceSurface->lDelta);
    }
    break;

  case BMF_8BPP:
    DPRINT("8BPP Case Selected with DestRect Width of '%d'.\n",
           DestWidth);

    if (bLeftToRight || bTopToBottom)
    DPRINT("bLeftToRight is '%d' and bTopToBottom is '%d'.\n", bLeftToRight, bTopToBottom);

    /* This sets SourceLine to the top line */
    SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0
      + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
      + BltInfo->SourcePoint.x;
    DestLine = DestBits;

    if (bTopToBottom)
    {
      /* This sets SourceLine to the bottom line */
      SourceLine += BltInfo->SourceSurface->lDelta * (DestHeight - 1);
    }

    for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
    {
      SourceBits = SourceLine;
      DestBits = DestLine;

      if (bLeftToRight)
      {
        /* This sets the SourceBits to the rightmost pixel */
        SourceBits += (DestWidth - 1);
      }

      for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
      {
        xColor = *SourceBits;
        *((PDWORD) DestBits) = (DWORD)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
        DEC_OR_INC(SourceBits, bLeftToRight, 1);
        DestBits += 4;
      }
      DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
      DestLine += BltInfo->DestSurface->lDelta;
    }
    break;

  case BMF_16BPP:
    DPRINT("16BPP Case Selected with DestRect Width of '%d'.\n",
            DestWidth);

    if (bLeftToRight || bTopToBottom)
    DPRINT("bLeftToRight is '%d' and bTopToBottom is '%d'.\n", bLeftToRight, bTopToBottom);

    /* This sets SourceLine to the top line */
    SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0
      + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
      + 2 * BltInfo->SourcePoint.x;
    DestLine = DestBits;

    if (bTopToBottom)
    {
      /* This sets SourceLine to the bottom line */
      SourceLine += BltInfo->SourceSurface->lDelta * (DestHeight - 1);
    }

    for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
    {
      SourceBits = SourceLine;
      DestBits = DestLine;

      if (bLeftToRight)
      {
        /* This sets the SourceBits to the rightmost pixel */
        SourceBits += (DestWidth - 1) * 2;
      }

      for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
      {
        xColor = *((PWORD) SourceBits);
        *((PDWORD) DestBits) = (DWORD)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
        DEC_OR_INC(SourceBits, bLeftToRight, 2);
        DestBits += 4;
      }

      DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
      DestLine += BltInfo->DestSurface->lDelta;
    }
    break;

  case BMF_24BPP:
    DPRINT("24BPP Case Selected with DestRect Width of '%d'.\n",
      DestWidth);

    if (bLeftToRight || bTopToBottom)
    DPRINT("bLeftToRight is '%d' and bTopToBottom is '%d'.\n", bLeftToRight, bTopToBottom);

    /* This sets SourceLine to the top line */
    SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0
      + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
      + 3 * BltInfo->SourcePoint.x;

    if (bTopToBottom)
    {
      /* This sets SourceLine to the bottom line */
      SourceLine += BltInfo->SourceSurface->lDelta * (DestHeight - 1);
    }

    DestLine = DestBits;

    for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
    {
      SourceBits = SourceLine;
      DestBits = DestLine;

      if (bLeftToRight)
      {
        /* This sets the SourceBits to the rightmost pixel */
        SourceBits += (DestWidth - 1) * 3;
      }

      for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
      {
        xColor = (*(SourceBits + 2) << 0x10) +
          (*(SourceBits + 1) << 0x08) +
          (*(SourceBits));
        *((PDWORD)DestBits) = (DWORD)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
        DEC_OR_INC(SourceBits, bLeftToRight, 3);
        DestBits += 4;
      }

      DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
      DestLine += BltInfo->DestSurface->lDelta;
    }
    break;

  case BMF_32BPP:
    DPRINT("32BPP Case Selected with SourcePoint (%d,%d) and DestRect Width/height of '%d/%d' DestRect: (%d,%d)-(%d,%d).\n",
           BltInfo->SourcePoint.x, BltInfo->SourcePoint.y, DestWidth, DestHeight,
           BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);

    if (bLeftToRight || bTopToBottom)
    DPRINT("bLeftToRight is '%d' and bTopToBottom is '%d'.\n", bLeftToRight, bTopToBottom);

    /* This handles the negative lDelta's which represent Top-to-Bottom bitmaps */
    if (((blDeltaSrcNeg || blDeltaDestNeg) && !(blDeltaSrcNeg && blDeltaDestNeg)) && bTopToBottom)
    {
      DPRINT("Adjusting for lDelta's here.\n");
      if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
      {
        /* SourceBits points to top-left pixel for lDelta < 0 and bottom-left for lDelta > 0 */
        SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
          + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
          + 4 * BltInfo->SourcePoint.x;
        for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
        {
          RtlMoveMemory(DestBits, SourceBits, 4 * DestWidth);
          SourceBits += BltInfo->SourceSurface->lDelta;
          DestBits += BltInfo->DestSurface->lDelta;
        }
      }
      else
      {
        /* SourceBits points to bottom-left pixel for lDelta < 0 and top-left for lDelta > 0 */
        SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
          + ((BltInfo->SourcePoint.y
          + DestHeight - 1) * BltInfo->SourceSurface->lDelta)
          + 4 * BltInfo->SourcePoint.x;
        /* SourceBits points to bottom-left pixel for lDelta < 0 and top-left for lDelta > 0 */
        DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
          + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta)
          + 4 * BltInfo->DestRect.left;
        for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
        {
          RtlMoveMemory(DestBits, SourceBits, 4 * DestWidth);
          SourceBits -= BltInfo->SourceSurface->lDelta;
          DestBits -= BltInfo->DestSurface->lDelta;
        }
      }
      blDeltaAdjustDone = TRUE;
    }

    /* This tests for whether we can use simplified/quicker code below.
     * It works for increasing source and destination areas only and there is no overlap and no flip.
     */
    if ((BltInfo->XlateSourceToDest == NULL ||
      (BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL) != 0) &&
      (!bTopToBottom && !bLeftToRight))
    {
      DPRINT("XO_TRIVIAL is TRUE.\n");

      if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
      {
        /* SourceBits points to top-left pixel for lDelta < 0 and bottom-left for lDelta > 0 */
        SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
          + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
          + 4 * BltInfo->SourcePoint.x;
        for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
        {
          RtlMoveMemory(DestBits, SourceBits, 4 * DestWidth);
          SourceBits += BltInfo->SourceSurface->lDelta;
          DestBits += BltInfo->DestSurface->lDelta;
        }
      }
      else
      {
        /* SourceBits points to bottom-left pixel for lDelta < 0 and top-left for lDelta > 0 */
        SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
          + ((BltInfo->SourcePoint.y
          + DestHeight - 1) * BltInfo->SourceSurface->lDelta)
          + 4 * BltInfo->SourcePoint.x;
        /* SourceBits points to bottom-left pixel for lDelta < 0 and top-left for lDelta > 0 */
        DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
          + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta)
          + 4 * BltInfo->DestRect.left;
        for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
        {
          RtlMoveMemory(DestBits, SourceBits, 4 * DestWidth);
          SourceBits -= BltInfo->SourceSurface->lDelta;
          DestBits -= BltInfo->DestSurface->lDelta;
        }
      }
    }
    else
    {
      DPRINT("XO_TRIVIAL is NOT TRUE.\n");

      if (!bTopToBottom && !bLeftToRight)
      {
        if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
        {
          SourceBits = ((PBYTE)BltInfo->SourceSurface->pvScan0
            + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
            + 4 * BltInfo->SourcePoint.x);
          for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
          {
            if (BltInfo->DestRect.left < BltInfo->SourcePoint.x)
            {
              Dest32 = (DWORD *) DestBits;
              Source32 = (DWORD *) SourceBits;
              for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
              {
                *Dest32++ = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *Source32++);
              }
            }
            else
            {
              Dest32 = (DWORD *) DestBits + (DestWidth - 1);
              Source32 = (DWORD *) SourceBits + (DestWidth - 1);
              for (i = BltInfo->DestRect.right - 1; BltInfo->DestRect.left <= i; i--)
              {
                *Dest32-- = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *Source32--);
              }
            }
            SourceBits += BltInfo->SourceSurface->lDelta;
            DestBits += BltInfo->DestSurface->lDelta;
          }
        }
        else
        {
          SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
            + ((BltInfo->SourcePoint.y
            + DestHeight - 1) * BltInfo->SourceSurface->lDelta)
            + 4 * BltInfo->SourcePoint.x;
          DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
            + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta)
            + 4 * BltInfo->DestRect.left;
          for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
          {
            if (BltInfo->DestRect.left < BltInfo->SourcePoint.x)
            {
              Dest32 = (DWORD *) DestBits;
              Source32 = (DWORD *) SourceBits;
              for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
              {
                *Dest32++ = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *Source32++);
              }
            }
            else
            {
              Dest32 = (DWORD *) DestBits + (DestWidth - 1);
              Source32 = (DWORD *) SourceBits + (DestWidth - 1);
              for (i = BltInfo->DestRect.right - 1; BltInfo->DestRect.left <= i; i--)
              {
                *Dest32-- = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *Source32--);
              }
            }
            SourceBits -= BltInfo->SourceSurface->lDelta;
            DestBits -= BltInfo->DestSurface->lDelta;
          }
        }
      }
      else
      {
        /* Buffering for source and destination flip overlaps. Fixes KHMZ MirrorTest CORE-16642 */
        BOOL TopToBottomDone = FALSE;

        /* No need to flip a LeftToRight bitmap only one pixel wide */
        if ((bLeftToRight) && (DestWidth > 1))
        {
          DPRINT("Flip is bLeftToRight.\n");

          /* Allocate enough pixels for a row in DWORD's */
          DWORD *store = ExAllocatePoolWithTag(NonPagedPool,
            (DestWidth + 1) * 4, TAG_DIB);
          if (store == NULL)
          {
            DPRINT1("Storage Allocation Failed.\n");
            return FALSE;
          }

          /* This sets SourceBits to the bottom line */
          SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
            + ((BltInfo->SourcePoint.y + DestHeight - 1)
            * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;

          /* This sets DestBits to the bottom line */
          DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
           + (BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta
           + 4 * BltInfo->DestRect.left;

          for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
          {

              /* Set Dest32 to right pixel */
              Dest32 = (DWORD *) DestBits + (DestWidth - 1);
              Source32 = (DWORD *) SourceBits;

              Index = 0;

              /* Store pixels from left to right */
              for (i = BltInfo->DestRect.right - 1; BltInfo->DestRect.left <= i; i--)
              {
                store[Index] = *Source32++;
                Index++;
              }

              Index = 0;

              /* Copy stored dat to pixels from right to left */
              for (i = BltInfo->DestRect.right - 1; BltInfo->DestRect.left <= i; i--)
              {
                *Dest32-- = store[Index];
                Index++;
              }
            SourceBits -= BltInfo->SourceSurface->lDelta;
            DestBits -= BltInfo->DestSurface->lDelta;
          }
          ExFreePoolWithTag(store, TAG_DIB);
          TopToBottomDone = TRUE;
        }

        /* Top to Botoom Handling if bitmap more than one pixel high */
        if ((bTopToBottom) && (DestHeight > 1))
         {
          /* Note: It is very important that this code remain optimized for time used.
           *   Otherwise you will have random crashes in ReactOS that are undesirable.
           *   For an example of this just try executing the code here two times.
           */

          DPRINT("Flip is bTopToBottom.\n");

          /* Allocate enough pixels for a row in DWORD's */
          DWORD *store = ExAllocatePoolWithTag(NonPagedPool,
            (DestWidth + 1) * 4, TAG_DIB);
          if (store == NULL)
          {
            DPRINT1("Storage Allocation Failed.\n");
            return FALSE;
          }

          /* This set DestBitsT to the top line */
          DestBitsT = (PBYTE)BltInfo->DestSurface->pvScan0
            + ((BltInfo->DestRect.top) * BltInfo->DestSurface->lDelta)
            + 4 * BltInfo->DestRect.left;

          /* This sets DestBitsB to the bottom line */
          DestBitsB = (PBYTE)BltInfo->DestSurface->pvScan0
           + (BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta
           + 4 * BltInfo->DestRect.left;

          /* The TopToBottomDone flag indicates that we are flipping for bTopToBottom and bLeftToRight
           * and have already completed the bLeftToRight. So we will lose our first flip output
           * unless we work with its output which is at the destination site. So in this case
           * our new Source becomes the previous outputs Destination.
           * Also in we use the same logic when we have corrected for negative lDelta's above
           * and already completed a flip from Source to Destination for the first step 
           */

          if (TopToBottomDone || blDeltaAdjustDone)
          {
            /* This sets SourceBitsB to the bottom line */
            SourceBitsB = DestBitsB;

            /* This sets SourceBitsT to the top line */
            SourceBitsT = DestBitsT;
          }
          else
          {
            /* This sets SourceBitsB to the bottom line */
            SourceBitsB = (PBYTE)BltInfo->SourceSurface->pvScan0
              + ((BltInfo->SourcePoint.y + DestHeight - 1)
              * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;

            /* This sets SourceBitsT to the top line */
            SourceBitsT = (PBYTE)BltInfo->SourceSurface->pvScan0
              + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;
          }

          /* Overlaps and Vertical flips do not mix well. So we test for this and handle it
           * by using two operations. First we just do a copy of the source to the destination.
           * Then we do a flip in place at the destination location and we are done.
           */
          if ((BltInfo->SourcePoint.y != BltInfo->DestRect.top) &&                        // The values are not equal and
             (abs(BltInfo->SourcePoint.y - BltInfo->DestRect.top) < (DestHeight + 2)) &&  // they are NOT seperated by > DestHeight 
             (BltInfo->SourceSurface->pvScan0 == BltInfo->DestSurface->pvScan0))          // and same surface (probably screen)
          {
            DPRINT("Flips Need Adjustments, so do move here.\n");

            if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
            {
              /* SourceBits points to top-left pixel for lDelta < 0 and bottom-left for lDelta > 0 */
              SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
                + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta)
                + 4 * BltInfo->SourcePoint.x;
              for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
              {
                RtlMoveMemory(DestBits, SourceBits, 4 * DestWidth);
                SourceBits += BltInfo->SourceSurface->lDelta;
                DestBits += BltInfo->DestSurface->lDelta;
              }
            }
            else
            {
              /* SourceBits points to bottom-left pixel for lDelta < 0 and top-left for lDelta > 0 */
              SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0
                + ((BltInfo->SourcePoint.y
                + DestHeight - 1) * BltInfo->SourceSurface->lDelta)
                + 4 * BltInfo->SourcePoint.x;
              /* SourceBits points to bottom-left pixel for lDelta < 0 and top-left for lDelta > 0 */
              DestBits = (PBYTE)BltInfo->DestSurface->pvScan0
                + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta)
                + 4 * BltInfo->DestRect.left;
              for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
              {
                RtlMoveMemory(DestBits, SourceBits, 4 * DestWidth);
                SourceBits -= BltInfo->SourceSurface->lDelta;
                DestBits -= BltInfo->DestSurface->lDelta;
              }
            }

            /* This sets SourceBitsB to the bottom line */
            SourceBitsB = DestBitsB;

            /* This sets SourceBitsT to the top line */
            SourceBitsT = DestBitsT;
          }

          /* Vertical Flip code starts here */
          for (j = 0; j < DestHeight / 2 ; j++)
          {
            /* Store bottom row of Source pixels */
            RtlMoveMemory(store, SourceBitsB, 4 * DestWidth);

            /* Copy top Source row to bottom Destination row overwriting it */
            RtlMoveMemory(DestBitsB, SourceBitsT, 4 * DestWidth);

            /* Copy stored bottom row of Source pixels to Destination top row of pixels */
            RtlMoveMemory(DestBitsT, store, 4 * DestWidth);

            /* Index top rows down and bottom rows up */
            SourceBitsT += BltInfo->SourceSurface->lDelta;
            SourceBitsB -= BltInfo->SourceSurface->lDelta;

            DestBitsT += BltInfo->DestSurface->lDelta;
            DestBitsB -= BltInfo->DestSurface->lDelta;
          }
          if (DestHeight % 2)
          {
            /* If we had an odd number of lines we handle the center one here */
            DPRINT("Handling Top To Bottom with Odd Number of lines.\n");
            RtlMoveMemory(DestBitsB, SourceBitsT, 4 * DestWidth);
          }
          ExFreePoolWithTag(store, TAG_DIB);
        }
      }
    }
    break;

  default:
    DPRINT1("DIB_32BPP_BitBltSrcCopy: Unhandled Source BPP: %u\n", BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
    return FALSE;
  }

  return TRUE;
}

DIB_32BPP_ColorFill()

BOOLEAN DIB_32BPP_ColorFill	(	SURFOBJ *	,
		RECTL *	,
		ULONG
	)

Definition at line 31 of file dib32bppc.c.

{
  ULONG DestY;

  /* Make WellOrdered by making top < bottom and left < right */
  RECTL_vMakeWellOrdered(DestRect);

  for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
  {
    DIB_32BPP_HLine (DestSurface, DestRect->left, DestRect->right, DestY, color);
  }

  return TRUE;
}

DIB_32BPP_GetPixel()

ULONG DIB_32BPP_GetPixel	(	SURFOBJ *	,
		LONG	,
		LONG
	)

Definition at line 30 of file dib32bpp.c.

{
  PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta;
  PDWORD addr = (PDWORD)byteaddr + x;

  return (ULONG)(*addr);
}

Referenced by DIB_1BPP_BitBltSrcCopy().

DIB_32BPP_HLine()

VOID DIB_32BPP_HLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 16 of file dib32bppc.c.

{
  PBYTE byteaddr = (PBYTE)((ULONG_PTR)SurfObj->pvScan0 + y * SurfObj->lDelta);
  PDWORD addr = (PDWORD)byteaddr + x1;
  LONG cx = x1;

  while(cx < x2)
  {
    *addr = (DWORD)c;
    ++addr;
    ++cx;
  }
}

Referenced by DIB_32BPP_ColorFill().

DIB_32BPP_PutPixel()

VOID DIB_32BPP_PutPixel	(	SURFOBJ *	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 21 of file dib32bpp.c.

{
  PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta;
  PDWORD addr = (PDWORD)byteaddr + x;

  *addr = c;
}

Referenced by DIB_32BPP_BitBltSrcCopy().

DIB_32BPP_TransparentBlt()

BOOLEAN DIB_32BPP_TransparentBlt	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		XLATEOBJ *	,
		ULONG
	)

Definition at line 701 of file dib32bpp.c.

{
  LONG X, Y, SourceX, SourceY = 0, wd;
  ULONG *DestBits, Source = 0;

  LONG DstHeight;
  LONG DstWidth;
  LONG SrcHeight;
  LONG SrcWidth;

  DstHeight = DestRect->bottom - DestRect->top;
  DstWidth = DestRect->right - DestRect->left;
  SrcHeight = SourceRect->bottom - SourceRect->top;
  SrcWidth = SourceRect->right - SourceRect->left;

  DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 +
    (DestRect->left << 2) +
    DestRect->top * DestSurf->lDelta);
  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) << 2);

  for (Y = DestRect->top; Y < DestRect->bottom; Y++)
  {
    SourceY = SourceRect->top+(Y - DestRect->top) * SrcHeight / DstHeight;
    for (X = DestRect->left; X < DestRect->right; X++, DestBits++)
    {
      SourceX = SourceRect->left+(X - DestRect->left) * SrcWidth / DstWidth;
      if (SourceX >= 0 && SourceY >= 0 &&
        SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
      {
        Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
        if ((0x00FFFFFF & Source) != (0x00FFFFFF & iTransColor))
        {
          *DestBits = XLATEOBJ_iXlate(ColorTranslation, Source);
        }
      }
    }

    DestBits = (ULONG*)((ULONG_PTR)DestBits + wd);
  }

  return TRUE;
}

DIB_32BPP_VLine()

VOID DIB_32BPP_VLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 39 of file dib32bpp.c.

{
  PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y1 * SurfObj->lDelta;
  PDWORD addr = (PDWORD)byteaddr + x;
  LONG lDelta = SurfObj->lDelta >> 2; // >> 2 == / sizeof(DWORD)

  byteaddr = (PBYTE)addr;
  while (y1++ < y2)
  {
    *addr = (DWORD)c;
    addr += lDelta;
  }
}

DIB_4BPP_BitBlt()

BOOLEAN DIB_4BPP_BitBlt

(

PBLTINFO

)

Definition at line 368 of file dib4bpp.c.

{
  LONG DestX, DestY;
  LONG SourceX, SourceY;
  LONG PatternY = 0;
  ULONG Dest, Source = 0, Pattern = 0;
  BOOLEAN UsesSource;
  BOOLEAN UsesPattern;
  PULONG DestBits;
  LONG RoundedRight;
  static const ULONG ExpandSolidColor[16] =
  {
    0x00000000 /* 0 */,
    0x11111111 /* 1 */,
    0x22222222 /* 2 */,
    0x33333333 /* 3 */,
    0x44444444 /* 4 */,
    0x55555555 /* 5 */,
    0x66666666 /* 6 */,
    0x77777777 /* 7 */,
    0x88888888 /* 8 */,
    0x99999999 /* 9 */,
    0xAAAAAAAA /* 10 */,
    0xBBBBBBBB /* 11 */,
    0xCCCCCCCC /* 12 */,
    0xDDDDDDDD /* 13 */,
    0xEEEEEEEE /* 14 */,
    0xFFFFFFFF /* 15 */,
  };

  UsesSource = ROP4_USES_SOURCE(BltInfo->Rop4);
  UsesPattern = ROP4_USES_PATTERN(BltInfo->Rop4);

  SourceY = BltInfo->SourcePoint.y;
  RoundedRight = BltInfo->DestRect.right -
    ((BltInfo->DestRect.right - BltInfo->DestRect.left) & 0x7);

  if (UsesPattern)
  {
    if (BltInfo->PatternSurface)
    {
      PatternY = (BltInfo->DestRect.top + BltInfo->BrushOrigin.y) %
        BltInfo->PatternSurface->sizlBitmap.cy;
    }
    else
    {
      if (BltInfo->Brush)
        Pattern = ExpandSolidColor[BltInfo->Brush->iSolidColor];
    }
  }

  for (DestY = BltInfo->DestRect.top; DestY < BltInfo->DestRect.bottom; DestY++)
  {
    DestBits = (PULONG)(
      (PBYTE)BltInfo->DestSurface->pvScan0 +
      (BltInfo->DestRect.left >> 1) +
      DestY * BltInfo->DestSurface->lDelta);
    SourceX = BltInfo->SourcePoint.x;
    DestX = BltInfo->DestRect.left;

    if (DestX & 0x1)
    {
      Dest = DIB_4BPP_GetPixel(BltInfo->DestSurface, DestX, DestY);

      if (UsesSource)
      {
        Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
      }

      if (BltInfo->PatternSurface)
      {
        Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface,
         (DestX + BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
      }

      DIB_4BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xF);

      DestX++;
      SourceX++;
      DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
    }

    for (; DestX < RoundedRight; DestX += 8, SourceX += 8, DestBits++)
    {
      Dest = *DestBits;
      if (UsesSource)
      {
        Source =
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 1, SourceY, BltInfo->XlateSourceToDest)) |
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 0, SourceY, BltInfo->XlateSourceToDest) << 4) |
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 3, SourceY, BltInfo->XlateSourceToDest) << 8) |
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 2, SourceY, BltInfo->XlateSourceToDest) << 12) |
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 5, SourceY, BltInfo->XlateSourceToDest) << 16) |
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 4, SourceY, BltInfo->XlateSourceToDest) << 20) |
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 7, SourceY, BltInfo->XlateSourceToDest) << 24) |
          (DIB_GetSource(BltInfo->SourceSurface, SourceX + 6, SourceY, BltInfo->XlateSourceToDest) << 28);
      }
      if (BltInfo->PatternSurface)
      {
        Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 1) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
        Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 0) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 4;
        Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 3) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 8;
        Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 2) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 12;
        Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 5) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 16;
        Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 4) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 20;
        Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 7) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 24;
        Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 6) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 28;
      }
      *DestBits = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern);
    }

    /* Process the rest of pixel on the line */
    for (; DestX < BltInfo->DestRect.right; DestX++, SourceX++)
    {
      Dest = DIB_4BPP_GetPixel(BltInfo->DestSurface, DestX, DestY);
      if (UsesSource)
      {
        Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
      }
      if (BltInfo->PatternSurface)
      {
        Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface,
          (DestX + BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
      }
      DIB_4BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xF);
    }

    SourceY++;
    if (BltInfo->PatternSurface)
    {
      PatternY++;
      PatternY %= BltInfo->PatternSurface->sizlBitmap.cy;
    }
  }

  return TRUE;
}

DIB_4BPP_BitBltSrcCopy()

BOOLEAN DIB_4BPP_BitBltSrcCopy

(

PBLTINFO

)

Definition at line 63 of file dib4bpp.c.

{
  LONG     i, j, sx, sy, f2, xColor;
  PBYTE    SourceBits_24BPP, SourceLine_24BPP;
  PBYTE    DestBits, DestLine, SourceBits_8BPP, SourceLine_8BPP;
  PBYTE    SourceBits, SourceLine;
  BOOLEAN  bTopToBottom, bLeftToRight;

  DPRINT("DIB_4BPP_BitBltSrcCopy: SrcSurf cx/cy (%d/%d), DestSuft cx/cy (%d/%d) dstRect: (%d,%d)-(%d,%d)\n",
         BltInfo->SourceSurface->sizlBitmap.cx, BltInfo->SourceSurface->sizlBitmap.cy,
         BltInfo->DestSurface->sizlBitmap.cx, BltInfo->DestSurface->sizlBitmap.cy,
         BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);

  /* Get back left to right flip here */
  bLeftToRight = (BltInfo->DestRect.left > BltInfo->DestRect.right);

  /* Check for top to bottom flip needed. */
  bTopToBottom = BltInfo->DestRect.top > BltInfo->DestRect.bottom;

  /* Make WellOrdered with top < bottom and left < right */
  RECTL_vMakeWellOrdered(&BltInfo->DestRect);

  DPRINT("BPP is '%d/%d' & BltInfo->SourcePoint.x is '%d' & BltInfo->SourcePoint.y is '%d'.\n",
         BltInfo->SourceSurface->iBitmapFormat, BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);

  DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 +
             (BltInfo->DestRect.left >> 1) +
             BltInfo->DestRect.top * BltInfo->DestSurface->lDelta;

  switch (BltInfo->SourceSurface->iBitmapFormat)
  {
    case BMF_1BPP:
      DPRINT("1BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      sx = BltInfo->SourcePoint.x;

      /* This sets sy to the top line */
      sy = BltInfo->SourcePoint.y;

      if (bTopToBottom)
      {
        /* This sets sy to the bottom line */
        sy += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;
      }

      for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
      {
        sx = BltInfo->SourcePoint.x;

        if (bLeftToRight)
        {
          /* This sets the sx to the rightmost pixel */
          sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        }

        for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
        {
          if(DIB_1BPP_GetPixel(BltInfo->SourceSurface, sx, sy) == 0)
          {
            DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
          }
          else
          {
            DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 1));
          }
          DEC_OR_INC(sx, bLeftToRight, 1);
        }
        DEC_OR_INC(sy, bTopToBottom, 1);
      }
      break;

    case BMF_4BPP:
      DPRINT("4BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      /* This sets sy to the top line */
      sy = BltInfo->SourcePoint.y;

      if (bTopToBottom)
      {
        /* This sets sy to the bottom line */
        sy += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1)
              * BltInfo->SourceSurface->lDelta;
      }

      for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
      {
        sx = BltInfo->SourcePoint.x;

        if (bLeftToRight)
        {
          /* This sets the sx to the rightmost pixel */
          sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        }

        for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
        {
          if (NULL != BltInfo->XlateSourceToDest)
          {
            DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j,
              XLATEOBJ_iXlate(BltInfo->XlateSourceToDest,
              DIB_4BPP_GetPixel(BltInfo->SourceSurface, sx, sy)));
          }
          else
          {
            DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j,
              DIB_4BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
          }
          DEC_OR_INC(sx, bLeftToRight, 1);
        }
        DEC_OR_INC(sy, bTopToBottom, 1);
      }
      break;

    case BMF_8BPP:
      DPRINT("8BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
              BltInfo->DestRect.left, BltInfo->DestRect.top,
              BltInfo->DestRect.right, BltInfo->DestRect.bottom,
              BltInfo->DestRect.right - BltInfo->DestRect.left);

      SourceBits_8BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + 
        (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;

      if (bTopToBottom)
      {
        /* This sets SourceBits to the bottom line */
        SourceBits_8BPP = (PBYTE)((LONG_PTR)SourceBits_8BPP +
          ((BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) *
          BltInfo->SourceSurface->lDelta));
      }

      for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
      {
        SourceLine_8BPP = SourceBits_8BPP;
        DestLine = DestBits;

        if (bLeftToRight)
        {
          /* This sets SourceBits_8BPP to the rightmost pixel */
          SourceBits_8BPP += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
        }

        f2 = BltInfo->DestRect.left & 1;

        for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
        {
          *DestLine = (*DestLine & notmask[f2]) |
            (BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceLine_8BPP)) << ((4 * (1 - f2))));
          if (f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
          DEC_OR_INC(SourceLine_8BPP, bLeftToRight, 1);
        }
        DEC_OR_INC(SourceBits_8BPP, bTopToBottom, BltInfo->SourceSurface->lDelta);
        DestBits += BltInfo->DestSurface->lDelta;
      }
      break;

    case BMF_16BPP:
      DPRINT("16BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      DPRINT("BMF_16BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
             BltInfo->DestRect.left, BltInfo->DestRect.top,
             BltInfo->DestRect.right, BltInfo->DestRect.bottom,
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
        (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) +
        2 * BltInfo->SourcePoint.x;

      if (bTopToBottom)
      {
        /* This sets SourceLine to the bottom line */
        SourceLine += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) *
          BltInfo->SourceSurface->lDelta;;
      }

      DestLine = DestBits;

      for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
      {
        SourceBits = SourceLine;

        if (bLeftToRight)
        {
          /* This sets SourceBits to the rightmost pixel */
          SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 2;
        }

        DestBits = DestLine;
        f2 = BltInfo->DestRect.left & 1;

        for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
        {
          xColor = *((PWORD) SourceBits);
          *DestBits = (*DestBits & notmask[f2]) |
            (BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
          if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }

          DEC_OR_INC(SourceBits, bLeftToRight, 2);
        }

        DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
        DestLine += BltInfo->DestSurface->lDelta;
      }
      break;

    case BMF_24BPP:

      DPRINT("24BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n", 
             BltInfo->DestRect.left, BltInfo->DestRect.top,
             BltInfo->DestRect.right, BltInfo->DestRect.bottom,
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      SourceBits_24BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 +
        (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) +
        BltInfo->SourcePoint.x * 3;

      if (bTopToBottom)
      {
        /* This sets SourceLine to the bottom line */
        SourceBits_24BPP += BltInfo->SourceSurface->lDelta *
          (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
      }

      for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
      {
        SourceLine_24BPP = SourceBits_24BPP;
        DestLine = DestBits;
        f2 = BltInfo->DestRect.left & 1;

        if (bLeftToRight)
        {
          /* This sets the SourceBits_24BPP to the rightmost pixel */
          SourceLine_24BPP += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 3;
        }

        for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
        {
          xColor = (*(SourceLine_24BPP + 2) << 0x10) +
             (*(SourceLine_24BPP + 1) << 0x08) +
             (*(SourceLine_24BPP));
          *DestLine = (*DestLine & notmask[f2]) |
            (BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
          if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
          DEC_OR_INC(SourceLine_24BPP, bLeftToRight, 3);
        }
        DEC_OR_INC(SourceBits_24BPP, bTopToBottom, BltInfo->SourceSurface->lDelta);
        DestBits += BltInfo->DestSurface->lDelta;
      }
      break;

    case BMF_32BPP:
      DPRINT("32BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
        (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) +
        4 * BltInfo->SourcePoint.x;

      if (bTopToBottom)
      {
        /* This sets SourceLine to the bottom line */
        SourceLine += BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1;
      }

      DestLine = DestBits;

      for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
      {
        SourceBits = SourceLine;
        DestBits = DestLine;

        if (bLeftToRight)
        {
          /* This sets SourceBits to the rightmost pixel */
          SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 4;
        }

        f2 = BltInfo->DestRect.left & 1;

        for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
        {
          xColor = *((PDWORD) SourceBits);
          *DestBits = (*DestBits & notmask[f2]) |
            (BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
          if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }

          DEC_OR_INC(SourceBits, bLeftToRight, 4);
        }

        DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
        DestLine += BltInfo->DestSurface->lDelta;
      }
      break;

    default:
      DbgPrint("DIB_4BPP_BitBltSrcCopy: Unhandled Source BPP: %u\n",
        BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
      return FALSE;
  }
  return(TRUE);
}

DIB_4BPP_ColorFill()

BOOLEAN DIB_4BPP_ColorFill	(	SURFOBJ *	,
		RECTL *	,
		ULONG
	)

Definition at line 508 of file dib4bpp.c.

{
  LONG DestY;

  /* Make WellOrdered by making top < bottom and left < right */
  RECTL_vMakeWellOrdered(DestRect);

  for (DestY = DestRect->top; DestY < DestRect->bottom; DestY++)
  {
    DIB_4BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
  }
  return TRUE;
}

DIB_4BPP_GetPixel()

ULONG DIB_4BPP_GetPixel	(	SURFOBJ *	,
		LONG	,
		LONG
	)

Definition at line 26 of file dib4bpp.c.

{
   PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
   return (*addr >> ((1-(x&1))<<2)) & 0x0f;
}

Referenced by DIB_1BPP_BitBltSrcCopy(), DIB_4BPP_BitBlt(), and DIB_4BPP_BitBltSrcCopy().

DIB_4BPP_HLine()

VOID DIB_4BPP_HLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 33 of file dib4bpp.c.

{
  PBYTE  addr = (PBYTE)SurfObj->pvScan0 + (x1>>1) + y * SurfObj->lDelta;
  LONG  cx = x1;

  while(cx < x2)
  {
    *addr = (*addr & notmask[x1&1]) | (BYTE)(c << ((1-(x1&1))<<2));
    if((++x1 & 1) == 0)
      ++addr;
    ++cx;
  }
}

Referenced by DIB_4BPP_ColorFill().

DIB_4BPP_PutPixel()

VOID DIB_4BPP_PutPixel	(	SURFOBJ *	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 19 of file dib4bpp.c.

{
   PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
   *addr = (*addr & notmask[x&1]) | (BYTE)(c << ((1-(x&1))<<2));
}

Referenced by DIB_4BPP_BitBlt(), and DIB_4BPP_BitBltSrcCopy().

DIB_4BPP_TransparentBlt()

BOOLEAN DIB_4BPP_TransparentBlt	(	SURFOBJ *	,
		SURFOBJ *	,
		RECTL *	,
		RECTL *	,
		XLATEOBJ *	,
		ULONG
	)

Definition at line 524 of file dib4bpp.c.

{
  return FALSE;
}

DIB_4BPP_VLine()

VOID DIB_4BPP_VLine	(	SURFOBJ *	,
		LONG	,
		LONG	,
		LONG	,
		ULONG
	)

Definition at line 48 of file dib4bpp.c.

{
  PBYTE  addr = SurfObj->pvScan0;
  int  lDelta = SurfObj->lDelta;

  addr += (x>>1) + y1 * lDelta;
  while(y1++ < y2)
  {
    *addr = (*addr & notmask[x&1]) | (BYTE)(c << ((1-(x&1))<<2));
    addr += lDelta;
  }
}

DIB_8BPP_BitBlt()

BOOLEAN DIB_8BPP_BitBlt

(

PBLTINFO

)

DIB_8BPP_BitBltSrcCopy()

BOOLEAN DIB_8BPP_BitBltSrcCopy

(

PBLTINFO

)

Definition at line 59 of file dib8bpp.c.

{
  LONG     i, j, sx, sy, xColor, f1;
  PBYTE    SourceBits, DestBits, SourceLine, DestLine;
  PBYTE    SourceBits_4BPP, SourceLine_4BPP;
  BOOLEAN  bTopToBottom, bLeftToRight;

  DPRINT("DIB_8BPP_BitBltSrcCopy: SrcSurf cx/cy (%d/%d), DestSuft cx/cy (%d/%d) dstRect: (%d,%d)-(%d,%d)\n",
         BltInfo->SourceSurface->sizlBitmap.cx, BltInfo->SourceSurface->sizlBitmap.cy,
         BltInfo->DestSurface->sizlBitmap.cx, BltInfo->DestSurface->sizlBitmap.cy,
         BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);

  /* Get back left to right flip here */
  bLeftToRight = (BltInfo->DestRect.left > BltInfo->DestRect.right);

  /* Check for top to bottom flip needed. */
  bTopToBottom = BltInfo->DestRect.top > BltInfo->DestRect.bottom;

  DPRINT("bTopToBottom is '%d' and bLeftToRight is '%d'.\n", bTopToBottom, bLeftToRight);

  /* Make WellOrdered by making top < bottom and left < right */
  RECTL_vMakeWellOrdered(&BltInfo->DestRect);

  DPRINT("BPP is '%d' & BltInfo->SourcePoint.x is '%d' & BltInfo->SourcePoint.y is '%d'.\n",
         BltInfo->SourceSurface->iBitmapFormat, BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);

  DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left;

  switch(BltInfo->SourceSurface->iBitmapFormat)
  {
    case BMF_1BPP:
      DPRINT("1BPP Case Selected with DestRect Width of '%d'.\n",
             BltInfo->DestRect.right - BltInfo->DestRect.left);

      sx = BltInfo->SourcePoint.x;

      /* This sets sy to the top line */
      sy = BltInfo->SourcePoint.y;