// 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
static const size_t NUM_OF_MAPPED_COLOURS = 4;
static bool s_coloursInit = FALSE;
- long s_stdColours[NUM_OF_MAPPED_COLOURS];
+ static long s_stdColours[NUM_OF_MAPPED_COLOURS];
if (!s_coloursInit)
{
return bitmap;
}
- MapColours(hdcMem, width, height, WXSIZEOF(ColorMap), ColorMap);
+ 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 < numColours; 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;