BOOLEAN DIB_XXBPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf, SURFOBJ *MaskSurf,
SURFOBJ *PatternSurface,
RECTL *DestRect, RECTL *SourceRect,
POINTL *MaskOrigin, BRUSHOBJ *Brush,
POINTL *BrushOrigin, XLATEOBJ *ColorTranslation,
ROP4 ROP)
{
LONG sx = 0;
LONG sy = 0;
LONG DesX;
LONG DesY;
LONG DstHeight;
LONG DstWidth;
LONG SrcHeight;
LONG SrcWidth;
LONG MaskCy;
LONG SourceCy;
ULONG Color;
ULONG Dest, Source = 0, Pattern = 0;
ULONG xxBPPMask;
BOOLEAN CanDraw;
PFN_DIB_GetPixel fnSource_GetPixel = NULL;
PFN_DIB_GetPixel fnDest_GetPixel = NULL;
PFN_DIB_PutPixel fnDest_PutPixel = NULL;
PFN_DIB_GetPixel fnPattern_GetPixel = NULL;
PFN_DIB_GetPixel fnMask_GetPixel = NULL;
LONG PatternX = 0, PatternY = 0;
BOOL UsesSource = ROP4_USES_SOURCE(ROP);
BOOL UsesPattern = ROP4_USES_PATTERN(ROP);
ASSERT(IS_VALID_ROP4(ROP));
fnDest_GetPixel = DibFunctionsForBitmapFormat[DestSurf->iBitmapFormat].DIB_GetPixel;
fnDest_PutPixel = DibFunctionsForBitmapFormat[DestSurf->iBitmapFormat].DIB_PutPixel;
DPRINT("Dest BPP: %u, dstRect: (%d,%d)-(%d,%d)\n",
BitsPerFormat(DestSurf->iBitmapFormat), DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
if (UsesSource)
{
SourceCy = abs(SourceSurf->sizlBitmap.cy);
fnSource_GetPixel = DibFunctionsForBitmapFormat[SourceSurf->iBitmapFormat].DIB_GetPixel;
DPRINT("Source BPP: %u, srcRect: (%d,%d)-(%d,%d)\n",
BitsPerFormat(SourceSurf->iBitmapFormat), SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom);
}
if (MaskSurf)
{
fnMask_GetPixel = DibFunctionsForBitmapFormat[MaskSurf->iBitmapFormat].DIB_GetPixel;
MaskCy = abs(MaskSurf->sizlBitmap.cy);
}
DstHeight = DestRect->bottom - DestRect->top;
DstWidth = DestRect->right - DestRect->left;
SrcHeight = SourceRect->bottom - SourceRect->top;
SrcWidth = SourceRect->right - SourceRect->left;
/* FIXME: MaskOrigin? */
switch(DestSurf->iBitmapFormat)
{
case BMF_1BPP: xxBPPMask = 0x1; break;
case BMF_4BPP: xxBPPMask = 0xF; break;
case BMF_8BPP: xxBPPMask = 0xFF; break;
case BMF_16BPP: xxBPPMask = 0xFFFF; break;
case BMF_24BPP: xxBPPMask = 0xFFFFFF; break;
default:
xxBPPMask = 0xFFFFFFFF;
}
if (UsesPattern)
{
if (PatternSurface)
{
PatternY = (DestRect->top - BrushOrigin->y) % PatternSurface->sizlBitmap.cy;
if (PatternY < 0)
{
PatternY += PatternSurface->sizlBitmap.cy;
}
fnPattern_GetPixel = DibFunctionsForBitmapFormat[PatternSurface->iBitmapFormat].DIB_GetPixel;
}
else
{
if (Brush)
Pattern = Brush->iSolidColor;
}
}
for (DesY = DestRect->top; DesY < DestRect->bottom; DesY++)
{
if (PatternSurface)
{
PatternX = (DestRect->left - BrushOrigin->x) % PatternSurface->sizlBitmap.cx;
if (PatternX < 0)
{
PatternX += PatternSurface->sizlBitmap.cx;
}
}
if (UsesSource)
sy = SourceRect->top+(DesY - DestRect->top) * SrcHeight / DstHeight;
for (DesX = DestRect->left; DesX < DestRect->right; DesX++)
{
CanDraw = TRUE;
if (fnMask_GetPixel)
{
sx = SourceRect->left+(DesX - DestRect->left) * SrcWidth / DstWidth;
if (sx < 0 || sy < 0 ||
MaskSurf->sizlBitmap.cx < sx || MaskCy < sy ||
fnMask_GetPixel(MaskSurf, sx, sy) != 0)
{
CanDraw = FALSE;
}
}
if (UsesSource && CanDraw)
{
sx = SourceRect->left+(DesX - DestRect->left) * SrcWidth / DstWidth;
if (sx >= 0 && sy >= 0 &&
SourceSurf->sizlBitmap.cx > sx && SourceCy > sy)
{
Source = XLATEOBJ_iXlate(ColorTranslation, fnSource_GetPixel(SourceSurf, sx, sy));
}
else
{
Source = 0;
CanDraw = ((ROP & 0xFF) != R3_OPINDEX_SRCCOPY);
}
}
if (CanDraw)
{
if (UsesPattern && PatternSurface)
{
Pattern = fnPattern_GetPixel(PatternSurface, PatternX, PatternY);
PatternX++;
PatternX %= PatternSurface->sizlBitmap.cx;
}
Dest = fnDest_GetPixel(DestSurf, DesX, DesY);
Color = DIB_DoRop(ROP, Dest, Source, Pattern) & xxBPPMask;
fnDest_PutPixel(DestSurf, DesX, DesY, Color);
}
}
if (PatternSurface)
{
PatternY++;
PatternY %= PatternSurface->sizlBitmap.cy;
}
}
return TRUE;
}
BOOL APIENTRY
IntEngStretchBlt(SURFOBJ *psoDest,
SURFOBJ *psoSource,
SURFOBJ *MaskSurf,
CLIPOBJ *ClipRegion,
XLATEOBJ *ColorTranslation,
COLORADJUSTMENT *pca,
RECTL *DestRect,
RECTL *SourceRect,
POINTL *pMaskOrigin,
BRUSHOBJ *pbo,
POINTL *BrushOrigin,
DWORD Rop4)
{
BOOLEAN ret;
POINTL MaskOrigin = {0, 0};
SURFACE *psurfDest;
//SURFACE *psurfSource = NULL;
RECTL InputClippedRect;
RECTL InputRect;
RECTL OutputRect;
BOOL UsesSource = ROP4_USES_SOURCE(Rop4);
LONG InputClWidth, InputClHeight, InputWidth, InputHeight;
ASSERT(psoDest);
//ASSERT(psoSource); // FIXME!
ASSERT(DestRect);
//ASSERT(SourceRect); // FIXME!
//ASSERT(!RECTL_bIsEmptyRect(SourceRect)); // FIXME!
/* If no clip object is given, use trivial one */
if (!ClipRegion) ClipRegion = &gxcoTrivial.ClipObj;
psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
/* Sanity check */
ASSERT(IS_VALID_ROP4(Rop4));
/* Check if source and dest size are equal */
if (((DestRect->right - DestRect->left) == (SourceRect->right - SourceRect->left)) &&
((DestRect->bottom - DestRect->top) == (SourceRect->bottom - SourceRect->top)))
{
/* Pass the request to IntEngBitBlt */
return IntEngBitBlt(psoDest,
psoSource,
MaskSurf,
ClipRegion,
ColorTranslation,
DestRect,
(PPOINTL)SourceRect,
pMaskOrigin,
pbo,
BrushOrigin,
Rop4);
}
InputClippedRect = *DestRect;
if (InputClippedRect.right < InputClippedRect.left)
{
InputClippedRect.left = DestRect->right;
InputClippedRect.right = DestRect->left;
}
if (InputClippedRect.bottom < InputClippedRect.top)
{
InputClippedRect.top = DestRect->bottom;
InputClippedRect.bottom = DestRect->top;
}
if (NULL == SourceRect || NULL == psoSource)
{
return FALSE;
}
InputRect = *SourceRect;
if (InputRect.right < InputRect.left ||
InputRect.bottom < InputRect.top)
{
/* Everything clipped away, nothing to do */
return TRUE;
}
if (ClipRegion->iDComplexity != DC_TRIVIAL)
{
if (!RECTL_bIntersectRect(&OutputRect, &InputClippedRect,
&ClipRegion->rclBounds))
{
return TRUE;
}
/* Update source rect */
InputClWidth = InputClippedRect.right - InputClippedRect.left;
InputClHeight = InputClippedRect.bottom - InputClippedRect.top;
InputWidth = InputRect.right - InputRect.left;
InputHeight = InputRect.bottom - InputRect.top;
InputRect.left += (InputWidth * (OutputRect.left - InputClippedRect.left)) / InputClWidth;
InputRect.right -= (InputWidth * (InputClippedRect.right - OutputRect.right)) / InputClWidth;
InputRect.top += (InputHeight * (OutputRect.top - InputClippedRect.top)) / InputClHeight;
InputRect.bottom -= (InputHeight * (InputClippedRect.bottom - OutputRect.bottom)) / InputClHeight;
}
else
{
OutputRect = InputClippedRect;
}
if (pMaskOrigin != NULL)
{
MaskOrigin.x = pMaskOrigin->x;
MaskOrigin.y = pMaskOrigin->y;
}
/* No success yet */
ret = FALSE;
if (UsesSource)
{
//psurfSource = CONTAINING_RECORD(psoSource, SURFACE, SurfObj);
}
/* Call the driver's DrvStretchBlt if available */
if (psurfDest->flags & HOOK_STRETCHBLTROP)
{
/* Drv->StretchBltROP (look at http://www.osronline.com/ddkx/graphics/ddifncs_0z3b.htm ) */
ret = GDIDEVFUNCS(psoDest).StretchBltROP(psoDest,
psoSource,
MaskSurf,
ClipRegion,
ColorTranslation,
pca,
BrushOrigin,
&OutputRect,
&InputRect,
&MaskOrigin,
COLORONCOLOR,
pbo,
Rop4);
}
if (! ret)
{
ret = EngStretchBltROP(psoDest,
psoSource,
MaskSurf,
ClipRegion,
ColorTranslation,
pca,
BrushOrigin,
&OutputRect,
&InputRect,
&MaskOrigin,
COLORONCOLOR,
pbo,
Rop4);
}
return ret;
}
