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Last part of the new strectsblt

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remove all mul and div from the loop. 

svn path=/trunk/; revision=25203
This commit is contained in:
Magnus Olsen
2006-12-21 22:36:16 +00:00
parent f2bddbce01
commit d7d01873cd
1 changed files with 68 additions and 25 deletions
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reactos/subsystems/win32/win32k/dib/dib16bpp.c
+68 -25
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@@ -624,16 +624,15 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
LONG SrcZoomXHight;
LONG SrcZoomXLow;
LONG DstZoomXHight;
LONG DstZoomXLow;
LONG SrcZoomYHight;
LONG SrcZoomYLow;
LONG DstZoomYHight;
LONG DstZoomYLow;
LONG sy_dec = 0;
LONG sy_max;
LONG sx_dec = 0;
LONG sx_max;
DPRINT("DIB_16BPP_StretchBlt: Source BPP: %u, srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
BitsPerFormat(SourceSurf->iBitmapFormat), SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
@@ -650,14 +649,6 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
/* Calc the Zoom width of Destions */
DesSizeX = DestRect->right - DestRect->left;
/* Calc the zoom factor of destions height */
DstZoomYHight = DesSizeY / SrcSizeY;
DstZoomYLow = DesSizeY - (DstZoomXHight * SrcSizeY);
/* Calc the zoom factor of destions width */
DstZoomXHight = DesSizeX / SrcSizeX;
DstZoomXLow = DesSizeX - (DstZoomXHight * SrcSizeX);
/* Calc the zoom factor of soruce height */
SrcZoomYHight = SrcSizeY / DesSizeY;
SrcZoomYLow = SrcSizeY - (SrcZoomYHight * SrcSizeY);
@@ -665,10 +656,12 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
/* Calc the zoom factor of soruce width */
SrcZoomXHight = SrcSizeX / DesSizeX;
SrcZoomXLow = SrcSizeX - (SrcZoomXHight * DesSizeX);
sy_max = DesSizeX;
sx_max = DesSizeX;
sy_max = DesSizeY;
sy = SourceRect->top;
switch(SourceSurf->iBitmapFormat)
{
@@ -682,9 +675,11 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
for (DesY=0; DesY<DesSizeY; DesY++)
{
sx = SourceRect->left;
sx_dec = 0;
for (DesX=0; DesX<DesSizeX; DesX++)
{
sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
{
*DestBits = XLATEOBJ_iXlate(ColorTranslation, 0);
@@ -695,12 +690,20 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
*DestBits = XLATEOBJ_iXlate(ColorTranslation, 1);
DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
}
sx += SrcZoomXHight;
sx_dec += SrcZoomXLow;
if (sx_dec >= sx_max)
{
sx++;
sx_dec -= sx_max;
}
}
DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
sy += SrcZoomYHight;
sy_dec += SrcZoomXLow;
sy_dec += SrcZoomYLow;
if (sy_dec >= sy_max)
{
sy++;
@@ -720,19 +723,29 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
for (DesY=0; DesY<DesSizeY; DesY++)
{
sx = SourceRect->left;
sx_dec = 0;
for (DesX=0; DesX<DesSizeX; DesX++)
{
sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
color = DIB_4BPP_GetPixel(SourceSurf, sx, sy);
color = XLATEOBJ_iXlate(ColorTranslation, color);
*DestBits = color;
DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
sx += SrcZoomXHight;
sx_dec += SrcZoomXLow;
if (sx_dec >= sx_max)
{
sx++;
sx_dec -= sx_max;
}
}
DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
sy += SrcZoomYHight;
sy_dec += SrcZoomXLow;
sy_dec += SrcZoomYLow;
if (sy_dec >= sy_max)
{
sy++;
@@ -751,19 +764,29 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
for (DesY=0; DesY<DesSizeY; DesY++)
{
sx = SourceRect->left;
sx_dec = 0;
for (DesX=0; DesX<DesSizeX; DesX++)
{
sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
color = DIB_8BPP_GetPixel(SourceSurf, sx, sy);
color = XLATEOBJ_iXlate(ColorTranslation, color);
color = XLATEOBJ_iXlate(ColorTranslation, color);
*DestBits = color;
DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
sx += SrcZoomXHight;
sx_dec += SrcZoomXLow;
if (sx_dec >= sx_max)
{
sx++;
sx_dec -= sx_max;
}
}
DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
sy += SrcZoomYHight;
sy_dec += SrcZoomXLow;
sy_dec += SrcZoomYLow;
if (sy_dec >= sy_max)
{
sy++;
@@ -784,19 +807,29 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
for (DesY=0; DesY<DesSizeY; DesY++)
{
sx = SourceRect->left;
sx_dec = 0;
for (DesX=0; DesX<DesSizeX; DesX++)
{
sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
color = DIB_24BPP_GetPixel(SourceSurf, sx, sy);
color = XLATEOBJ_iXlate(ColorTranslation, color);
*DestBits = color;
DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
sx += SrcZoomXHight;
sx_dec += SrcZoomXLow;
if (sx_dec >= sx_max)
{
sx++;
sx_dec -= sx_max;
}
}
DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
sy += SrcZoomYHight;
sy_dec += SrcZoomXLow;
sy_dec += SrcZoomYLow;
if (sy_dec >= sy_max)
{
sy++;
@@ -815,18 +848,28 @@ BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
for (DesY=0; DesY<DesSizeY; DesY++)
{
sx = SourceRect->left;
sx_dec = 0;
for (DesX=0; DesX<DesSizeX; DesX++)
{
sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
color = DIB_32BPP_GetPixel(SourceSurf, sx, sy);
color = XLATEOBJ_iXlate(ColorTranslation, color);
*DestBits = color;
DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
sx += SrcZoomXHight;
sx_dec += SrcZoomXLow;
if (sx_dec >= sx_max)
{
sx++;
sx_dec -= sx_max;
}
}
DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
sy += SrcZoomYHight;
sy_dec += SrcZoomXLow;
sy_dec += SrcZoomYLow;
if (sy_dec >= sy_max)
{
sy++;