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diff --git a/src/gui/painting/qimagescale_sse4.cpp b/src/gui/painting/qimagescale_sse4.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qimagescale_p.h"
+#include "qimage.h"
+#include <private/qsimd_p.h>
+
+#if defined(QT_COMPILER_SUPPORTS_SSE4_1)
+
+QT_BEGIN_NAMESPACE
+
+using namespace QImageScale;
+
+inline static __m128i qt_qimageScaleAARGBA_helper_x(const unsigned int *pix, int xap, int Cx, const __m128i vxap, const __m128i vCx)
+{
+ __m128i vpix = _mm_cvtepu8_epi32(_mm_cvtsi32_si128(*pix));
+ __m128i vx = _mm_mullo_epi32(vpix, vxap);
+ int i;
+ for (i = (1 << 14) - xap; i > Cx; i -= Cx) {
+ pix++;
+ vpix = _mm_cvtepu8_epi32(_mm_cvtsi32_si128(*pix));
+ vx = _mm_add_epi32(vx, _mm_mullo_epi32(vpix, vCx));
+ }
+ pix++;
+ vpix = _mm_cvtepu8_epi32(_mm_cvtsi32_si128(*pix));
+ vx = _mm_add_epi32(vx, _mm_mullo_epi32(vpix, _mm_set1_epi32(i)));
+ return vx;
+}
+
+inline static __m128i qt_qimageScaleAARGBA_helper_y(const unsigned int *pix, int yap, int Cy, int sow, const __m128i vyap, const __m128i vCy)
+{
+ __m128i vpix = _mm_cvtepu8_epi32(_mm_cvtsi32_si128(*pix));
+ __m128i vx = _mm_mullo_epi32(vpix, vyap);
+ int i;
+ for (i = (1 << 14) - yap; i > Cy; i -= Cy) {
+ pix += sow;
+ vpix = _mm_cvtepu8_epi32(_mm_cvtsi32_si128(*pix));
+ vx = _mm_add_epi32(vx, _mm_mullo_epi32(vpix, vCy));
+ }
+ pix += sow;
+ vpix = _mm_cvtepu8_epi32(_mm_cvtsi32_si128(*pix));
+ vx = _mm_add_epi32(vx, _mm_mullo_epi32(vpix, _mm_set1_epi32(i)));
+ return vx;
+}
+
+template<bool RGB>
+void qt_qimageScaleAARGBA_up_x_down_y_sse4(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow)
+{
+ const unsigned int **ypoints = isi->ypoints;
+ int *xpoints = isi->xpoints;
+ int *xapoints = isi->xapoints;
+ int *yapoints = isi->yapoints;
+
+ int end = dxx + dw;
+
+ const __m128i v256 = _mm_set1_epi32(256);
+
+ /* go through every scanline in the output buffer */
+ for (int y = 0; y < dh; y++) {
+ int Cy = (yapoints[dyy + y]) >> 16;
+ int yap = (yapoints[dyy + y]) & 0xffff;
+ const __m128i vCy = _mm_set1_epi32(Cy);
+ const __m128i vyap = _mm_set1_epi32(yap);
+
+ unsigned int *dptr = dest + dx + ((y + dy) * dow);
+ for (int x = dxx; x < end; x++) {
+ const unsigned int *sptr = ypoints[dyy + y] + xpoints[x];
+ __m128i vx = qt_qimageScaleAARGBA_helper_y(sptr, yap, Cy, sow, vyap, vCy);
+
+ int xap = xapoints[x];
+ if (xap > 0) {
+ const __m128i vxap = _mm_set1_epi32(xap);
+ const __m128i vinvxap = _mm_sub_epi32(v256, vxap);
+ __m128i vr = qt_qimageScaleAARGBA_helper_y(sptr + 1, yap, Cy, sow, vyap, vCy);
+
+ vx = _mm_mullo_epi32(vx, vinvxap);
+ vr = _mm_mullo_epi32(vr, vxap);
+ vx = _mm_add_epi32(vx, vr);
+ vx = _mm_srli_epi32(vx, 8);
+ }
+ vx = _mm_srli_epi32(vx, 14);
+ vx = _mm_packus_epi32(vx, _mm_setzero_si128());
+ vx = _mm_packus_epi16(vx, _mm_setzero_si128());
+ *dptr = _mm_cvtsi128_si32(vx);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
+ }
+ }
+}
+
+template<bool RGB>
+void qt_qimageScaleAARGBA_down_x_up_y_sse4(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow)
+{
+ const unsigned int **ypoints = isi->ypoints;
+ int *xpoints = isi->xpoints;
+ int *xapoints = isi->xapoints;
+ int *yapoints = isi->yapoints;
+
+ int end = dxx + dw;
+
+ const __m128i v256 = _mm_set1_epi32(256);
+
+ /* go through every scanline in the output buffer */
+ for (int y = 0; y < dh; y++) {
+ unsigned int *dptr = dest + dx + ((y + dy) * dow);
+ for (int x = dxx; x < end; x++) {
+ int Cx = xapoints[x] >> 16;
+ int xap = xapoints[x] & 0xffff;
+ const __m128i vCx = _mm_set1_epi32(Cx);
+ const __m128i vxap = _mm_set1_epi32(xap);
+
+ const unsigned int *sptr = ypoints[dyy + y] + xpoints[x];
+ __m128i vx = qt_qimageScaleAARGBA_helper_x(sptr, xap, Cx, vxap, vCx);
+
+ int yap = yapoints[dyy + y];
+ if (yap > 0) {
+ const __m128i vyap = _mm_set1_epi32(yap);
+ const __m128i vinvyap = _mm_sub_epi32(v256, vyap);
+ __m128i vr = qt_qimageScaleAARGBA_helper_x(sptr + sow, xap, Cx, vxap, vCx);
+
+ vx = _mm_mullo_epi32(vx, vinvyap);
+ vr = _mm_mullo_epi32(vr, vyap);
+ vx = _mm_add_epi32(vx, vr);
+ vx = _mm_srli_epi32(vx, 8);
+ }
+ vx = _mm_srli_epi32(vx, 14);
+ vx = _mm_packus_epi32(vx, _mm_setzero_si128());
+ vx = _mm_packus_epi16(vx, _mm_setzero_si128());
+ *dptr = _mm_cvtsi128_si32(vx);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
+ }
+ }
+}
+
+template<bool RGB>
+void qt_qimageScaleAARGBA_down_xy_sse4(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow)
+{
+ const unsigned int **ypoints = isi->ypoints;
+ int *xpoints = isi->xpoints;
+ int *xapoints = isi->xapoints;
+ int *yapoints = isi->yapoints;
+
+ for (int y = 0; y < dh; y++) {
+ int Cy = (yapoints[dyy + y]) >> 16;
+ int yap = (yapoints[dyy + y]) & 0xffff;
+ const __m128i vCy = _mm_set1_epi32(Cy);
+ const __m128i vyap = _mm_set1_epi32(yap);
+
+ unsigned int *dptr = dest + dx + ((y + dy) * dow);
+ int end = dxx + dw;
+ for (int x = dxx; x < end; x++) {
+ const int Cx = xapoints[x] >> 16;
+ const int xap = xapoints[x] & 0xffff;
+ const __m128i vCx = _mm_set1_epi32(Cx);
+ const __m128i vxap = _mm_set1_epi32(xap);
+
+ const unsigned int *sptr = ypoints[dyy + y] + xpoints[x];
+ __m128i vx = qt_qimageScaleAARGBA_helper_x(sptr, xap, Cx, vxap, vCx);
+ __m128i vr = _mm_mullo_epi32(_mm_srli_epi32(vx, 4), vyap);
+
+ int j;
+ for (j = (1 << 14) - yap; j > Cy; j -= Cy) {
+ sptr += sow;
+ vx = qt_qimageScaleAARGBA_helper_x(sptr, xap, Cx, vxap, vCx);
+ vr = _mm_add_epi32(vr, _mm_mullo_epi32(_mm_srli_epi32(vx, 4), vCy));
+ }
+ sptr += sow;
+ vx = qt_qimageScaleAARGBA_helper_x(sptr, xap, Cx, vxap, vCx);
+ vr = _mm_add_epi32(vr, _mm_mullo_epi32(_mm_srli_epi32(vx, 4), _mm_set1_epi32(j)));
+
+ vr = _mm_srli_epi32(vr, 24);
+ vr = _mm_packus_epi32(vr, _mm_setzero_si128());
+ vr = _mm_packus_epi16(vr, _mm_setzero_si128());
+ *dptr = _mm_cvtsi128_si32(vr);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
+ }
+ }
+}
+
+template void qt_qimageScaleAARGBA_up_x_down_y_sse4<false>(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow);
+
+template void qt_qimageScaleAARGBA_up_x_down_y_sse4<true>(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow);
+
+template void qt_qimageScaleAARGBA_down_x_up_y_sse4<false>(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow);
+
+template void qt_qimageScaleAARGBA_down_x_up_y_sse4<true>(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow);
+
+template void qt_qimageScaleAARGBA_down_xy_sse4<false>(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow);
+
+template void qt_qimageScaleAARGBA_down_xy_sse4<true>(QImageScaleInfo *isi, unsigned int *dest,
+ int dxx, int dyy, int dx, int dy,
+ int dw, int dh, int dow, int sow);
+
+QT_END_NAMESPACE
+
+#endif
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