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new template-based more flexible and hopefully more efficient raw bitmap implementation

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20363 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2003-04-28 01:46:05 +00:00
parent 96df9ed9b1
commit b9bcaf117a
4 changed files with 578 additions and 225 deletions
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16
src/msw/dc.cpp
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@@ -2313,19 +2313,19 @@ wxAlphaBlend(wxDC& dc, int xDst, int yDst, int w, int h, const wxBitmap& bmpSrc)
}
// combine them with the source bitmap using alpha
wxRawBitmapData dataDst(bmpDst),
dataSrc(bmpSrc);
wxAlphaPixelData dataDst(bmpDst),
dataSrc(bmpSrc);
wxCHECK_RET( dataDst && dataSrc,
_T("failed to get raw data in wxAlphaBlend") );
wxRawBitmapIterator pDst(dataDst),
pSrc(dataSrc);
wxAlphaPixelData::Iterator pDst(dataDst),
pSrc(dataSrc);
for ( int y = 0; y < h; y++ )
{
wxRawBitmapIterator pDstRowStart = pDst,
pSrcRowStart = pSrc;
wxAlphaPixelData::Iterator pDstRowStart = pDst,
pSrcRowStart = pSrc;
for ( int x = 0; x < w; x++ )
{
@@ -2343,8 +2343,8 @@ wxAlphaBlend(wxDC& dc, int xDst, int yDst, int w, int h, const wxBitmap& bmpSrc)
pDst = pDstRowStart;
pSrc = pSrcRowStart;
pDst.OffsetY(1);
pSrc.OffsetY(1);
pDst.OffsetY(dataDst, 1);
pSrc.OffsetY(dataSrc, 1);
}
// and finally blit them back to the destination DC