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cards: Avoid GetPixel to draw round corners, use a clip region instead.

This commit is contained in:
Alexandre Julliard 2006-04-05 14:05:03 +02:00
parent 148a481266
commit c205d115c8
1 changed files with 25 additions and 26 deletions
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51
dlls/cards/cards.c
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@ -175,35 +175,34 @@ BOOL WINAPI cdtDrawExt(HDC hdc, int x, int y, int dx, int dy, int card, int mode
if(roundCornersFlag)
{
COLORREF savedPixels[12];
/* NOTE: native uses Get/SetPixel for corners, but that really
* hurts on X11 since it needs a server round-trip for each pixel.
* So we use a clip region instead. */
HRGN saved = CreateRectRgn( 0, 0, 0, 0 );
HRGN line = CreateRectRgn( x + 2, y, x + dx - 2, y + 1 );
HRGN clip = CreateRectRgn( x, y + 2, x + dx, y + dy - 2 );
savedPixels[0] = GetPixel(hdc, x, y);
savedPixels[1] = GetPixel(hdc, x + 1, y);
savedPixels[2] = GetPixel(hdc, x, y + 1);
savedPixels[3] = GetPixel(hdc, x + dx - 1, y);
savedPixels[4] = GetPixel(hdc, x + dx - 2, y);
savedPixels[5] = GetPixel(hdc, x + dx - 1, y + 1);
savedPixels[6] = GetPixel(hdc, x, y + dy - 1);
savedPixels[7] = GetPixel(hdc, x + 1, y + dy - 1);
savedPixels[8] = GetPixel(hdc, x, y + dy - 2);
savedPixels[9] = GetPixel(hdc, x + dx - 1, y + dy - 1);
savedPixels[10] = GetPixel(hdc, x + dx - 2, y + dy - 1);
savedPixels[11] = GetPixel(hdc, x + dx - 1, y + dy - 2);
CombineRgn( clip, clip, line, RGN_OR );
SetRectRgn( line, x + 1, y + 1, x + dx - 1, y + 2 );
CombineRgn( clip, clip, line, RGN_OR );
SetRectRgn( line, x + 1, y + dy - 2, x + dx - 1, y + dy - 1 );
CombineRgn( clip, clip, line, RGN_OR );
SetRectRgn( line, x + 2, y + dy - 1, x + dx - 2, y + dy );
CombineRgn( clip, clip, line, RGN_OR );
DeleteObject( line );
do_blt(hdc, x, y, dx, dy, hMemoryDC, rasterOp);
if (!GetClipRgn( hdc, saved ))
{
DeleteObject( saved );
saved = 0;
}
ExtSelectClipRgn( hdc, clip, RGN_AND );
DeleteObject( clip );
SetPixel(hdc, x, y, savedPixels[0]);
SetPixel(hdc, x + 1, y, savedPixels[1]);
SetPixel(hdc, x, y + 1, savedPixels[2]);
SetPixel(hdc, x + dx - 1, y, savedPixels[3]);
SetPixel(hdc, x + dx - 2, y, savedPixels[4]);
SetPixel(hdc, x + dx - 1, y + 1, savedPixels[5]);
SetPixel(hdc, x, y + dy - 1, savedPixels[6]);
SetPixel(hdc, x + 1, y + dy - 1, savedPixels[7]);
SetPixel(hdc, x, y + dy - 2, savedPixels[8]);
SetPixel(hdc, x + dx - 1, y + dy - 1, savedPixels[9]);
SetPixel(hdc, x + dx - 2, y + dy - 1, savedPixels[10]);
SetPixel(hdc, x + dx - 1, y + dy - 2, savedPixels[11]);
do_blt(hdc, x, y, dx, dy, hMemoryDC, rasterOp);
SelectClipRgn( hdc, saved );
if (saved) DeleteObject( saved );
}
else
do_blt(hdc, x, y, dx, dy, hMemoryDC, rasterOp);