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[WIN32K]

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Fix broken parameter passing from EngMaskBitBlt to (Alpha)BltMask. It was passing the wrong surface and the wrong point. Rename some parameters to reflect what their usage is. Add ASSERTs to make sure noone passes useless parameters. Fixes crippled text in startmenu.
The whole code is broken by design, anyway it will go away, once the new text rendering code is done.
See issue #4379 for more details.

svn path=/trunk/; revision=47124
This commit is contained in:
Timo Kreuzer 2010-05-08 15:30:59 +00:00
parent f0d7ecd148
commit f820fe7a43
1 changed files with 22 additions and 16 deletions
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38
reactos/subsystems/win32/win32k/eng/bitblt.c
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@ -51,6 +51,9 @@ BltMask(SURFOBJ* psoDest,
ULONG Pattern = 0;
HBITMAP hbmPattern;
ASSERT(psoSource == NULL);
ASSERT(pptlSource == NULL);
if (psoMask == NULL)
{
return FALSE;
@ -662,8 +665,8 @@ static BOOLEAN APIENTRY
AlphaBltMask(SURFOBJ* psoDest,
SURFOBJ* psoSource, // unused
SURFOBJ* psoMask,
XLATEOBJ* ColorTranslation,
XLATEOBJ* SrcColorTranslation,
XLATEOBJ* pxloRGB2Dest,
XLATEOBJ* pxloBrush,
RECTL* prclDest,
POINTL* pptlSource, // unused
POINTL* pptlMask,
@ -675,12 +678,15 @@ AlphaBltMask(SURFOBJ* psoDest,
ULONG Background, BrushColor, NewColor;
BYTE *tMask, *lMask;
ASSERT(psoSource == NULL);
ASSERT(pptlSource == NULL);
dx = prclDest->right - prclDest->left;
dy = prclDest->bottom - prclDest->top;
if (psoMask != NULL)
{
BrushColor = XLATEOBJ_iXlate(SrcColorTranslation, pbo ? pbo->iSolidColor : 0);
BrushColor = XLATEOBJ_iXlate(pxloBrush, pbo ? pbo->iSolidColor : 0);
r = (int)GetRValue(BrushColor);
g = (int)GetGValue(BrushColor);
b = (int)GetBValue(BrushColor);
@ -701,14 +707,14 @@ AlphaBltMask(SURFOBJ* psoDest,
else
{
Background = DIB_GetSource(psoDest, prclDest->left + i, prclDest->top + j,
SrcColorTranslation);
pxloBrush);
NewColor =
RGB((*lMask * (r - GetRValue(Background)) >> 8) + GetRValue(Background),
(*lMask * (g - GetGValue(Background)) >> 8) + GetGValue(Background),
(*lMask * (b - GetBValue(Background)) >> 8) + GetBValue(Background));
Background = XLATEOBJ_iXlate(ColorTranslation, NewColor);
Background = XLATEOBJ_iXlate(pxloRGB2Dest, NewColor);
DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_PutPixel(
psoDest, prclDest->left + i, prclDest->top + j, Background);
}
@ -846,10 +852,10 @@ EngMaskBitBlt(SURFOBJ *psoDest,
case DC_TRIVIAL:
if (psoMask->iBitmapFormat == BMF_8BPP)
Ret = AlphaBltMask(psoOutput, NULL , psoInput, DestColorTranslation, SourceColorTranslation,
&OutputRect, &InputPoint, pptlMask, pbo, &AdjustedBrushOrigin);
&OutputRect, NULL, &InputPoint, pbo, &AdjustedBrushOrigin);
else
Ret = BltMask(psoOutput, NULL, psoInput, DestColorTranslation,
&OutputRect, &InputPoint, pptlMask, pbo, &AdjustedBrushOrigin,
&OutputRect, NULL, &InputPoint, pbo, &AdjustedBrushOrigin,
R4_MASK);
break;
case DC_RECT:
@ -864,13 +870,13 @@ EngMaskBitBlt(SURFOBJ *psoDest,
Pt.y = InputPoint.y + CombinedRect.top - OutputRect.top;
if (psoMask->iBitmapFormat == BMF_8BPP)
{
Ret = AlphaBltMask(psoOutput, psoInput, psoMask, DestColorTranslation, SourceColorTranslation,
&CombinedRect, &Pt, pptlMask, pbo, &AdjustedBrushOrigin);
Ret = AlphaBltMask(psoOutput, NULL, psoInput, DestColorTranslation, SourceColorTranslation,
&CombinedRect, NULL, &Pt, pbo, &AdjustedBrushOrigin);
}
else
{
Ret = BltMask(psoOutput, psoInput, psoMask, DestColorTranslation,
&CombinedRect, &Pt, pptlMask, pbo, &AdjustedBrushOrigin, R4_MASK);
Ret = BltMask(psoOutput, NULL, psoInput, DestColorTranslation,
&CombinedRect, NULL, &Pt, pbo, &AdjustedBrushOrigin, R4_MASK);
}
}
break;
@ -908,17 +914,17 @@ EngMaskBitBlt(SURFOBJ *psoDest,
Pt.y = InputPoint.y + CombinedRect.top - OutputRect.top;
if (psoMask->iBitmapFormat == BMF_8BPP)
{
Ret = AlphaBltMask(psoOutput, psoInput, psoMask,
Ret = AlphaBltMask(psoOutput, NULL, psoInput,
DestColorTranslation,
SourceColorTranslation,
&CombinedRect, &Pt, pptlMask, pbo,
&CombinedRect, NULL, &Pt, pbo,
&AdjustedBrushOrigin) && Ret;
}
else
{
Ret = BltMask(psoOutput, psoInput, psoMask,
DestColorTranslation, &CombinedRect, &Pt,
pptlMask, pbo, &AdjustedBrushOrigin,
Ret = BltMask(psoOutput, NULL, psoInput,
DestColorTranslation, &CombinedRect, NULL,
&Pt, pbo, &AdjustedBrushOrigin,
R4_MASK) && Ret;
}
}