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Fixed jagged lines when drawing scaled image with raster engine.

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Task-number: QTBUG-24055

Change-Id: I97a0bf3711e1b4423e2c76ec907c9e2a57522ff9
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
This commit is contained in:
Kim Motoyoshi Kalland 2012-02-07 13:52:41 +01:00 committed by Qt by Nokia
parent ba1cf5dae3
commit 9c31f6793e
1 changed files with 3 additions and 2 deletions
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5
src/gui/painting/qdrawhelper_sse2.cpp
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@ -629,8 +629,9 @@ void qt_scale_image_argb32_on_argb32_sse2(uchar *destPixels, int dbpl,
int x = 0;
ALIGNMENT_PROLOGUE_16BYTES(dst, x, w) {
uint s = src[(srcx + x*ix) >> 16];
uint s = src[srcx >> 16];
dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s));
srcx += ix;
}
__m128i srcxVector = _mm_set_epi32(srcx, srcx + ix, srcx + ix + ix, srcx + ix + ix + ix);
@ -646,7 +647,7 @@ void qt_scale_image_argb32_on_argb32_sse2(uchar *destPixels, int dbpl,
}
for (; x<w; x++) {
uint s = src[(srcx + x*ix) >> 16];
uint s = src[(basex + x*ix) >> 16];
dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s));
}
dst = (quint32 *)(((uchar *) dst) + dbpl);