BOOL APIENTRY
VBoxDispDrvStrokePath(SURFOBJ *pso, PATHOBJ *ppo, CLIPOBJ *pco, XFORMOBJ *pxo,
BRUSHOBJ *pbo, POINTL *pptlBrushOrg, LINEATTRS *plineattrs, MIX mix)
{
BOOL bRc;
LOGF_ENTER();
STATDRVENTRY(StrokePath, pso);
bRc = EngStrokePath(getSurfObj(pso), ppo, pco, pxo, pbo, pptlBrushOrg, plineattrs, mix);
VBVA_OPERATION(pso, StrokePath, (pso, ppo, pco, pxo, pbo, pptlBrushOrg, plineattrs, mix));
LOGF_LEAVE();
return bRc;
}
BOOL DrvStrokePath(
SURFOBJ* pso,
PATHOBJ* ppo,
CLIPOBJ* pco,
XFORMOBJ* pxo,
BRUSHOBJ* pbo,
POINTL* pptlBrush,
LINEATTRS* pla,
MIX mix)
{
STYLEPOS aspLtoR[STYLE_MAX_COUNT];
STYLEPOS aspRtoL[STYLE_MAX_COUNT];
LINESTATE ls;
PFNSTRIP* apfn;
FLONG fl;
PDEV* ppdev;
DSURF* pdsurf;
OH* poh;
ULONG ulHwMix;
RECTL arclClip[4]; // For rectangular clipping
RECTL rclBounds;
RECTFX rcfxBounds;
// Pass the surface off to GDI if it's a device bitmap that we've
// converted to a DIB:
pdsurf = (DSURF*) pso->dhsurf;
if (pdsurf->dt == DT_DIB)
{
return(EngStrokePath(pdsurf->pso, ppo, pco, pxo, pbo, pptlBrush,
pla, mix));
}
// We'll be drawing to the screen or an off-screen DFB; copy the surface's
// offset now so that we won't need to refer to the DSURF again:
poh = pdsurf->poh;
ppdev = (PDEV*) pso->dhpdev;
ppdev->xOffset = poh->x;
ppdev->yOffset = poh->y;
ulHwMix = gajHwMixFromMix[mix & 0xf];
// x86 has special case ASM code for accelerating solid lines:
#if defined(_X86_)
if ((pla->pstyle == NULL) && !(pla->fl & LA_ALTERNATE))
{
// We can accelerate solid lines:
if (pco->iDComplexity == DC_TRIVIAL)
{
ppdev->pfnFastLine(ppdev, ppo, NULL, &gapfnStrip[0], 0,
pbo->iSolidColor, ulHwMix);
return(TRUE);
}
else if (pco->iDComplexity == DC_RECT)
{
// We have to be sure that we don't overflow the hardware registers
// for current position, line length, or DDA terms. We check
// here to make sure that the current position and line length
// values won't overflow (for integer lines, this check is
// sufficient to ensure that the DDA terms won't overflow; for GIQ
// lines, we specifically check on every line in pfnFastLine that we
// don't overflow).
PATHOBJ_vGetBounds(ppo, &rcfxBounds);
if (rcfxBounds.xLeft + (ppdev->xOffset * F)
>= (MIN_INTEGER_BOUND * F) &&
rcfxBounds.xRight + (ppdev->xOffset * F)
<= (MAX_INTEGER_BOUND * F) &&
rcfxBounds.yTop + (ppdev->yOffset * F)
>= (MIN_INTEGER_BOUND * F) &&
rcfxBounds.yBottom + (ppdev->yOffset * F)
<= (MAX_INTEGER_BOUND * F))
{
// Since we're going to be using the scissors registers to
// do hardware clipping, we'll also have to make sure we don't
// exceed its bounds. ATI chips have a maximum limit of 1023,
// which we could exceed if we're running at 1280x1024, or for
// off-screen device bitmaps.
if ((pco->rclBounds.right + ppdev->xOffset < 1024) &&
(pco->rclBounds.bottom + ppdev->yOffset < 1024))
{
arclClip[0] = pco->rclBounds;
// FL_FLIP_D:
arclClip[1].top = pco->rclBounds.left;
arclClip[1].left = pco->rclBounds.top;
arclClip[1].bottom = pco->rclBounds.right;
arclClip[1].right = pco->rclBounds.bottom;
// FL_FLIP_V:
arclClip[2].top = -pco->rclBounds.bottom + 1;
arclClip[2].left = pco->rclBounds.left;
arclClip[2].bottom = -pco->rclBounds.top + 1;
arclClip[2].right = pco->rclBounds.right;
// FL_FLIP_V | FL_FLIP_D:
arclClip[3].top = pco->rclBounds.left;
arclClip[3].left = -pco->rclBounds.bottom + 1;
arclClip[3].bottom = pco->rclBounds.right;
arclClip[3].right = -pco->rclBounds.top + 1;
rclBounds.left = pco->rclBounds.left;
rclBounds.top = pco->rclBounds.top;
rclBounds.right = pco->rclBounds.right;
rclBounds.bottom = pco->rclBounds.bottom;
vSetClipping(ppdev, &rclBounds);
ppdev->pfnFastLine(ppdev, ppo, &arclClip[0], &gapfnStrip[0],
FL_SIMPLE_CLIP, pbo->iSolidColor, ulHwMix);
vResetClipping(ppdev);
return(TRUE);
}
}
}
}
#endif // _X86_
// Get the device ready:
if (DEPTH32(ppdev))
{
IO_FIFO_WAIT(ppdev, 4);
MM_FRGD_COLOR32(ppdev, ppdev->pjMmBase, pbo->iSolidColor);
}
else
{
IO_FIFO_WAIT(ppdev, 3);
IO_FRGD_COLOR(ppdev, pbo->iSolidColor);
}
IO_FRGD_MIX(ppdev, FOREGROUND_COLOR | ulHwMix);
IO_PIX_CNTL(ppdev, ALL_ONES);
fl = 0;
// Look after styling initialization:
if (pla->fl & LA_ALTERNATE)
{
ls.cStyle = 1;
ls.spTotal = 1;
ls.spTotal2 = 2;
ls.spRemaining = 1;
ls.aspRtoL = &gaspAlternateStyle[0];
ls.aspLtoR = &gaspAlternateStyle[0];
ls.spNext = HIWORD(pla->elStyleState.l);
ls.xyDensity = 1;
fl |= FL_ARBITRARYSTYLED;
ls.ulStartMask = 0L;
}
else if (pla->pstyle != (FLOAT_LONG*) NULL)
{
PFLOAT_LONG pstyle;
STYLEPOS* pspDown;
STYLEPOS* pspUp;
pstyle = &pla->pstyle[pla->cstyle];
ls.xyDensity = STYLE_DENSITY;
ls.spTotal = 0;
while (pstyle-- > pla->pstyle)
{
ls.spTotal += pstyle->l;
}
ls.spTotal *= STYLE_DENSITY;
ls.spTotal2 = 2 * ls.spTotal;
// Compute starting style position (this is guaranteed not to overflow):
ls.spNext = HIWORD(pla->elStyleState.l) * STYLE_DENSITY +
LOWORD(pla->elStyleState.l);
fl |= FL_ARBITRARYSTYLED;
ls.cStyle = pla->cstyle;
ls.aspRtoL = aspRtoL;
ls.aspLtoR = aspLtoR;
if (pla->fl & LA_STARTGAP)
ls.ulStartMask = 0xffffffffL;
else
ls.ulStartMask = 0L;
pstyle = pla->pstyle;
pspDown = &ls.aspRtoL[ls.cStyle - 1];
pspUp = &ls.aspLtoR[0];
while (pspDown >= &ls.aspRtoL[0])
{
*pspDown = pstyle->l * STYLE_DENSITY;
*pspUp = *pspDown;
pspUp++;
pspDown--;
pstyle++;
}
}
apfn = &gapfnStrip[NUM_STRIP_DRAW_STYLES *
((fl & FL_STYLE_MASK) >> FL_STYLE_SHIFT)];
// Set up to enumerate the path:
#if defined(_X86_)
// x86 ASM bLines supports DC_RECT clipping:
if (pco->iDComplexity != DC_COMPLEX)
#else
// Non-x86 ASM bLines don't support DC_RECT clipping:
if (pco->iDComplexity == DC_TRIVIAL)
#endif
{
PATHDATA pd;
RECTL* prclClip = (RECTL*) NULL;
BOOL bMore;
ULONG cptfx;
POINTFIX ptfxStartFigure;
POINTFIX ptfxLast;
POINTFIX* pptfxFirst;
POINTFIX* pptfxBuf;
#if defined(_X86_)
if (pco->iDComplexity == DC_RECT)
{
fl |= FL_SIMPLE_CLIP;
arclClip[0] = pco->rclBounds;
// FL_FLIP_D:
arclClip[1].top = pco->rclBounds.left;
arclClip[1].left = pco->rclBounds.top;
arclClip[1].bottom = pco->rclBounds.right;
arclClip[1].right = pco->rclBounds.bottom;
// FL_FLIP_V:
arclClip[2].top = -pco->rclBounds.bottom + 1;
arclClip[2].left = pco->rclBounds.left;
arclClip[2].bottom = -pco->rclBounds.top + 1;
arclClip[2].right = pco->rclBounds.right;
// FL_FLIP_V | FL_FLIP_D:
arclClip[3].top = pco->rclBounds.left;
arclClip[3].left = -pco->rclBounds.bottom + 1;
arclClip[3].bottom = pco->rclBounds.right;
arclClip[3].right = -pco->rclBounds.top + 1;
prclClip = arclClip;
}
#endif // _X86_
pd.flags = 0;
do {
bMore = PATHOBJ_bEnum(ppo, &pd);
cptfx = pd.count;
if (cptfx == 0)
{
break;
}
if (pd.flags & PD_BEGINSUBPATH)
{
ptfxStartFigure = *pd.pptfx;
pptfxFirst = pd.pptfx;
pptfxBuf = pd.pptfx + 1;
cptfx--;
}
else
{
pptfxFirst = &ptfxLast;
pptfxBuf = pd.pptfx;
}
if (pd.flags & PD_RESETSTYLE)
ls.spNext = 0;
if (cptfx > 0)
{
if (!bLines(ppdev,
pptfxFirst,
pptfxBuf,
(RUN*) NULL,
cptfx,
&ls,
prclClip,
apfn,
fl))
return(FALSE);
}
ptfxLast = pd.pptfx[pd.count - 1];
if (pd.flags & PD_CLOSEFIGURE)
{
if (!bLines(ppdev,
&ptfxLast,
&ptfxStartFigure,
(RUN*) NULL,
1,
&ls,
prclClip,
apfn,
fl))
return(FALSE);
}
} while (bMore);
if (fl & FL_STYLED)
{
// Save the style state:
ULONG ulHigh;
ULONG ulLow;
// Masked styles don't normalize the style state. It's a good
// thing to do, so let's do it now:
if ((ULONG) ls.spNext >= (ULONG) ls.spTotal2)
ls.spNext = (ULONG) ls.spNext % (ULONG) ls.spTotal2;
ulHigh = ls.spNext / ls.xyDensity;
ulLow = ls.spNext % ls.xyDensity;
pla->elStyleState.l = MAKELONG(ulLow, ulHigh);
}
}
else
{
// Local state for path enumeration:
BOOL bMore;
union {
BYTE aj[offsetof(CLIPLINE, arun) + RUN_MAX * sizeof(RUN)];
CLIPLINE cl;
} cl;
fl |= FL_COMPLEX_CLIP;
// We use the clip object when non-simple clipping is involved:
PATHOBJ_vEnumStartClipLines(ppo, pco, pso, pla);
do {
bMore = PATHOBJ_bEnumClipLines(ppo, sizeof(cl), &cl.cl);
if (cl.cl.c != 0)
{
if (fl & FL_STYLED)
{
ls.spComplex = HIWORD(cl.cl.lStyleState) * ls.xyDensity
+ LOWORD(cl.cl.lStyleState);
}
if (!bLines(ppdev,
&cl.cl.ptfxA,
&cl.cl.ptfxB,
&cl.cl.arun[0],
cl.cl.c,
&ls,
(RECTL*) NULL,
apfn,
fl))
return(FALSE);
}
} while (bMore);
}
return(TRUE);
}
