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fixed toolbar mapping bug (optimizer bug?) in the release build (bug 501485)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13555 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2002-01-13 20:45:53 +00:00
parent 513dad4531
commit 3a3898f8f1
1 changed files with 38 additions and 24 deletions
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62
src/msw/tbar95.cpp
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@@ -1102,6 +1102,38 @@ long wxToolBar::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
// private functions
// ----------------------------------------------------------------------------
// VZ: we use a separate function to do the actual colour mapping because
// otherwise VC++ optimizer seems to mangle the code in MapBitmap(): with
// optimization on, the code produces incorrect result (but it's ok in
// debug mode, i.e. globally without optimizations or if you insert a
// #pragma optimize("", off) just before the function!)
//
// This will also make it simpler to replace MapColours() later with
// something more efficient...
static void MapColours(HDC hdc, int width, int height,
size_t numColours, COLORMAP *cmap)
{
for ( int i = 0; i < width; i++ )
{
for ( int j = 0; j < height; j++ )
{
COLORREF pixel = ::GetPixel(hdc, i, j);
for ( size_t k = 0; k < numColours; k++ )
{
COLORREF col = cmap[k].from;
if ( abs(GetRValue(pixel) - GetRValue(col)) < 10 &&
abs(GetGValue(pixel) - GetGValue(col)) < 10 &&
abs(GetBValue(pixel) - GetBValue(col)) < 10 )
{
::SetPixel(hdc, i, j, cmap[k].to);
break;
}
}
}
}
}
WXHBITMAP wxToolBar::MapBitmap(WXHBITMAP bitmap, int width, int height)
{
// number of the colours we map: if you change this, update
@@ -1190,33 +1222,15 @@ WXHBITMAP wxToolBar::MapBitmap(WXHBITMAP bitmap, int width, int height)
return bitmap;
}
MapColours(hdcMem, width, height, WXSIZEOF(ColorMap), ColorMap);
return bitmap;
// VZ: I leave here my attempts to map the bitmap to the system colours
// faster by using BitBlt() even though it's broken currently - but
// maybe someone else can finish it? It should be faster than iterating
// over all pixels...
#if 1
for ( int i = 0; i < width; i++ )
{
for ( int j = 0; j < height; j++ )
{
COLORREF pixel = ::GetPixel(hdcMem, i, j);
for ( size_t k = 0; k < WXSIZEOF(ColorMap); k++ )
{
COLORREF col = ColorMap[k].from;
if ( abs(GetRValue(pixel) - GetRValue(col)) < 10 &&
abs(GetGValue(pixel) - GetGValue(col)) < 10 &&
abs(GetBValue(pixel) - GetBValue(col)) < 10 )
{
::SetPixel(hdcMem, i, j, ColorMap[k].to);
break;
}
}
}
}
return bitmap;
#else // 1
#if 0
MemoryHDC hdcMask, hdcDst;
if ( !hdcMask || !hdcDst )
{
@@ -1271,7 +1285,7 @@ WXHBITMAP wxToolBar::MapBitmap(WXHBITMAP bitmap, int width, int height)
::DeleteObject((HBITMAP)bitmap);
return (WXHBITMAP)hbmpDst;
#endif // 0/1
#endif // 0
}
#endif // wxUSE_TOOLBAR && Win95