Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7

13 files changed, 396 insertions, 223 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 882def7..72ddcef 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -7758,18 +7758,21 @@ void QGraphicsItemPrivate::resetHeight()
 }
 
 /*!
-  \property QGraphicsObject::children
-  \internal
+    \property QGraphicsObject::children
+    \since 4.7
+    \internal
 */
 
 /*!
-  \property QGraphicsObject::width
-  \internal
+    \property QGraphicsObject::width
+    \since 4.7
+    \internal
 */
 
 /*!
-  \property QGraphicsObject::height
-  \internal
+    \property QGraphicsObject::height
+    \since 4.7
+    \internal
 */
 
 /*!
@@ -7985,24 +7988,6 @@ void QGraphicsItemPrivate::resetHeight()
 */
 
 /*!
-    \property QGraphicsObject::children
-    \since 4.7
-    \internal
-*/
-
-/*!
-    \property QGraphicsObject::width
-    \since 4.7
-    \internal
-*/
-
-/*!
-    \property QGraphicsObject::height
-    \since 4.7
-    \internal
-*/
-
-/*!
     \class QAbstractGraphicsShapeItem
     \brief The QAbstractGraphicsShapeItem class provides a common base for
     all path items.
diff --git a/src/gui/graphicsview/qgraphicstransform.cpp b/src/gui/graphicsview/qgraphicstransform.cpp
index bd3f2ef..1f155c6 100644
--- a/src/gui/graphicsview/qgraphicstransform.cpp
+++ b/src/gui/graphicsview/qgraphicstransform.cpp
@@ -346,21 +346,24 @@ void QGraphicsScale::applyTo(QMatrix4x4 *matrix) const
 
 /*!
     \fn QGraphicsScale::xScaleChanged()
+    \since 4.7
 
-    QGraphicsScale emits this signal when its xScale changes.
+    This signal is emitted whenever the \l xScale property changes.
 */
 
 /*!
     \fn QGraphicsScale::yScaleChanged()
+    \since 4.7
 
-    QGraphicsScale emits this signal when its yScale changes.
+    This signal is emitted whenever the \l yScale property changes.
 */
 
 /*!
     \fn QGraphicsScale::zScaleChanged()
+    \since 4.7
 
-    QGraphicsScale emits this signal when its zScale changes.
-*/    
+    This signal is emitted whenever the \l zScale property changes.
+*/
 
 /*!
     \fn QGraphicsScale::scaleChanged()
@@ -583,27 +586,6 @@ void QGraphicsRotation::applyTo(QMatrix4x4 *matrix) const
     \sa QGraphicsRotation::axis
 */
 
-/*!
-    \fn QGraphicsScale::xScaleChanged()
-    \since 4.7
-
-    This signal is emitted whenever the \l xScale property changes.
-*/
-
-/*!
-    \fn QGraphicsScale::yScaleChanged()
-    \since 4.7
-
-    This signal is emitted whenever the \l yScale property changes.
-*/
-
-/*!
-    \fn QGraphicsScale::zScaleChanged()
-    \since 4.7
-
-    This signal is emitted whenever the \l zScale property changes.
-*/
-
 #include "moc_qgraphicstransform.cpp"
 
 QT_END_NAMESPACE
diff --git a/src/gui/painting/qblendfunctions.cpp b/src/gui/painting/qblendfunctions.cpp
index 24908ce..0edf256 100644
--- a/src/gui/painting/qblendfunctions.cpp
+++ b/src/gui/painting/qblendfunctions.cpp
@@ -254,10 +254,10 @@ void qt_scale_image_argb32_on_rgb16(uchar *destPixels, int dbpl,
     }
 }
 
-static void qt_blend_rgb16_on_rgb16(uchar *dst, int dbpl,
-                                    const uchar *src, int sbpl,
-                                    int w, int h,
-                                    int const_alpha)
+void qt_blend_rgb16_on_rgb16(uchar *dst, int dbpl,
+                             const uchar *src, int sbpl,
+                             int w, int h,
+                             int const_alpha)
 {
 #ifdef QT_DEBUG_DRAW
     printf("qt_blend_rgb16_on_rgb16: dst=(%p, %d), src=(%p, %d), dim=(%d, %d) alpha=%d\n",
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index be4275c..5e1509d 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -46,7 +46,6 @@
 #include <private/qdrawhelper_armv6_p.h>
 #include <private/qdrawhelper_neon_p.h>
 #include <private/qmath_p.h>
-#include <private/qsimd_p.h>
 #include <qmath.h>
 
 QT_BEGIN_NAMESPACE
@@ -656,6 +655,46 @@ const uint * QT_FASTCALL fetchTransformed(uint *buffer, const Operator *, const
     return buffer;
 }
 
+/** \internal
+  interpolate 4 argb pixels with the distx and disty factor.
+  distx and disty bust be between 0 and 16
+ */
+static inline uint interpolate_4_pixels_16(uint tl, uint tr, uint bl, uint br, int distx, int disty, int idistx, int idisty)
+{
+    uint tlrb = ((tl & 0x00ff00ff) * idistx * idisty);
+    uint tlag = (((tl & 0xff00ff00) >> 8) * idistx * idisty);
+    uint trrb = ((tr & 0x00ff00ff) * distx * idisty);
+    uint trag = (((tr & 0xff00ff00) >> 8) * distx * idisty);
+    uint blrb = ((bl & 0x00ff00ff) * idistx * disty);
+    uint blag = (((bl & 0xff00ff00) >> 8) * idistx * disty);
+    uint brrb = ((br & 0x00ff00ff) * distx * disty);
+    uint brag = (((br & 0xff00ff00) >> 8) * distx * disty);
+    return (((tlrb + trrb + blrb + brrb) >> 8) & 0x00ff00ff) | ((tlag + trag + blag + brag) & 0xff00ff00);
+}
+
+
+template<TextureBlendType blendType>
+Q_STATIC_TEMPLATE_FUNCTION inline void fetchTransformedBilinear_pixelBounds(int max, int l1, int l2, int &v1, int &v2)
+{
+    if (blendType == BlendTransformedBilinearTiled) {
+        v1 %= max;
+        if (v1 < 0) v1 += max;
+        v2 = v1 + 1;
+        v2 %= max;
+    } else {
+        if (v1 < l1) {
+            v2 = v1 = l1;
+        } else if (v1 >= l2 - 1) {
+            v2 = v1 = l2 - 1;
+        } else {
+            v2 = v1 + 1;
+        }
+    }
+
+    Q_ASSERT(v1 >= 0 && v1 < max);
+    Q_ASSERT(v2 >= 0 && v2 < max);
+}
+
 template<TextureBlendType blendType, QImage::Format format> /* blendType = BlendTransformedBilinear or BlendTransformedBilinearTiled */
 Q_STATIC_TEMPLATE_FUNCTION
 const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator *, const QSpanData *data,
@@ -696,64 +735,230 @@ const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator *
 
         fx -= half_point;
         fy -= half_point;
-        while (b < end) {
-            int x1 = (fx >> 16);
-            int x2;
+
+        if (fdy == 0) { //simple scale, no rotation
             int y1 = (fy >> 16);
             int y2;
+            fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+            const uchar *s1 = data->texture.scanLine(y1);
+            const uchar *s2 = data->texture.scanLine(y2);
 
-            if (blendType == BlendTransformedBilinearTiled) {
-                x1 %= image_width;
-                if (x1 < 0) x1 += image_width;
-                x2 = x1 + 1;
-                x2 %= image_width;
-
-                y1 %= image_height;
-                if (y1 < 0) y1 += image_height;
-                y2 = y1 + 1;
-                y2 %= image_height;
-            } else {
-                if (x1 < image_x1) {
-                    x2 = x1 = image_x1;
-                } else if (x1 >= image_x2 - 1) {
-                    x2 = x1 = image_x2 - 1;
+            if (fdx <= fixed_scale && fdx > 0) { // scale up on X
+                int disty = (fy & 0x0000ffff) >> 8;
+                int idisty = 256 - disty;
+                int x = fx >> 16;
+
+                // The idea is first to do the interpolation between the row s1 and the row s2
+                // into an intermediate buffer, then we interpolate between two pixel of this buffer.
+
+                // intermediate_buffer[0] is a buffer of red-blue component of the pixel, in the form 0x00RR00BB
+                // intermediate_buffer[1] is the alpha-green component of the pixel, in the form 0x00AA00GG
+                quint32 intermediate_buffer[2][buffer_size + 2];
+                // count is the size used in the intermediate_buffer.
+                int count = qCeil(length * data->m11) + 2; //+1 for the last pixel to interpolate with, and +1 for rounding errors.
+                Q_ASSERT(count <= buffer_size + 2); //length is supposed to be <= buffer_size and data->m11 < 1 in this case
+                int f = 0;
+                int lim = count;
+                if (blendType == BlendTransformedBilinearTiled) {
+                    x %= image_width;
+                    if (x < 0) x += image_width;
                 } else {
-                    x2 = x1 + 1;
+                    lim = qMin(count, image_x2-x);
+                    if (x < image_x1) {
+                        Q_ASSERT(x < image_x2);
+                        uint t = fetch(s1, image_x1, data->texture.colorTable);
+                        uint b = fetch(s2, image_x1, data->texture.colorTable);
+                        quint32 rb = (((t & 0xff00ff) * idisty + (b & 0xff00ff) * disty) >> 8) & 0xff00ff;
+                        quint32 ag = ((((t>>8) & 0xff00ff) * idisty + ((b>>8) & 0xff00ff) * disty) >> 8) & 0xff00ff;
+                        do {
+                            intermediate_buffer[0][f] = rb;
+                            intermediate_buffer[1][f] = ag;
+                            f++;
+                            x++;
+                        } while (x < image_x1 && f < lim);
+                    }
                 }
-                if (y1 < image_y1) {
-                    y2 = y1 = image_y1;
-                } else if (y1 >= image_y2 - 1) {
-                    y2 = y1 = image_y2 - 1;
-                } else {
-                    y2 = y1 + 1;
+
+#if defined(QT_ALWAYS_HAVE_SSE2)
+                if (blendType != BlendTransformedBilinearTiled &&
+                        (format == QImage::Format_ARGB32_Premultiplied || format == QImage::Format_RGB32)) {
+
+                    const __m128i disty_ = _mm_set1_epi16(disty);
+                    const __m128i idisty_ = _mm_set1_epi16(idisty);
+                    const __m128i colorMask = _mm_set1_epi32(0x00ff00ff);
+
+                    lim -= 3;
+                    for (; f < lim; x += 4, f += 4) {
+                        // Load 4 pixels from s1, and split the alpha-green and red-blue component
+                        __m128i top = _mm_loadu_si128((__m128i*)((const uint *)(s1)+x));
+                        __m128i topAG = _mm_srli_epi16(top, 8);
+                        __m128i topRB = _mm_and_si128(top, colorMask);
+                        // Multiplies each colour component by idisty
+                        topAG = _mm_mullo_epi16 (topAG, idisty_);
+                        topRB = _mm_mullo_epi16 (topRB, idisty_);
+
+                        // Same for the s2 vector
+                        __m128i bottom = _mm_loadu_si128((__m128i*)((const uint *)(s2)+x));
+                        __m128i bottomAG = _mm_srli_epi16(bottom, 8);
+                        __m128i bottomRB = _mm_and_si128(bottom, colorMask);
+                        bottomAG = _mm_mullo_epi16 (bottomAG, disty_);
+                        bottomRB = _mm_mullo_epi16 (bottomRB, disty_);
+
+                        // Add the values, and shift to only keep 8 significant bits per colors
+                        __m128i rAG =_mm_add_epi16(topAG, bottomAG);
+                        rAG = _mm_srli_epi16(rAG, 8);
+                        _mm_storeu_si128((__m128i*)(&intermediate_buffer[1][f]), rAG);
+                        __m128i rRB =_mm_add_epi16(topRB, bottomRB);
+                        rRB = _mm_srli_epi16(rRB, 8);
+                        _mm_storeu_si128((__m128i*)(&intermediate_buffer[0][f]), rRB);
+                    }
+                }
+#endif
+                for (; f < count; f++) { // Same as above but without sse2
+                    if (blendType == BlendTransformedBilinearTiled) {
+                        if (x >= image_width) x -= image_width;
+                    } else {
+                        x = qMin(x, image_x2 - 1);
+                    }
+
+                    uint t = fetch(s1, x, data->texture.colorTable);
+                    uint b = fetch(s2, x, data->texture.colorTable);
+
+                    intermediate_buffer[0][f] = (((t & 0xff00ff) * idisty + (b & 0xff00ff) * disty) >> 8) & 0xff00ff;
+                    intermediate_buffer[1][f] = ((((t>>8) & 0xff00ff) * idisty + ((b>>8) & 0xff00ff) * disty) >> 8) & 0xff00ff;
+                    x++;
+                }
+                // Now interpolate the values from the intermediate_buffer to get the final result.
+                fx &= fixed_scale - 1;
+                Q_ASSERT((fx >> 16) == 0);
+                while (b < end) {
+                    register int x1 = (fx >> 16);
+                    register int x2 = x1 + 1;
+                    Q_ASSERT(x1 >= 0);
+                    Q_ASSERT(x2 < count);
+
+                    register int distx = (fx & 0x0000ffff) >> 8;
+                    register int idistx = 256 - distx;
+                    int rb = ((intermediate_buffer[0][x1] * idistx + intermediate_buffer[0][x2] * distx) >> 8) & 0xff00ff;
+                    int ag = (intermediate_buffer[1][x1] * idistx + intermediate_buffer[1][x2] * distx) & 0xff00ff00;
+                    *b = rb | ag;
+                    b++;
+                    fx += fdx;
+                }
+            } else if ((fdx < 0 && fdx > -(fixed_scale / 8)) || fabs(data->m22) < (1./8.)) { // scale up more than 8x
+                int y1 = (fy >> 16);
+                int y2;
+                fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+                const uchar *s1 = data->texture.scanLine(y1);
+                const uchar *s2 = data->texture.scanLine(y2);
+                int disty = (fy & 0x0000ffff) >> 8;
+                int idisty = 256 - disty;
+                while (b < end) {
+                    int x1 = (fx >> 16);
+                    int x2;
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+                    uint tl = fetch(s1, x1, data->texture.colorTable);
+                    uint tr = fetch(s1, x2, data->texture.colorTable);
+                    uint bl = fetch(s2, x1, data->texture.colorTable);
+                    uint br = fetch(s2, x2, data->texture.colorTable);
+
+                    int distx = (fx & 0x0000ffff) >> 8;
+                    int idistx = 256 - distx;
+
+                    uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx);
+                    uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx);
+                    *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty);
+
+                    fx += fdx;
+                    ++b;
+                }
+            } else { //scale down
+                int y1 = (fy >> 16);
+                int y2;
+                fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+                const uchar *s1 = data->texture.scanLine(y1);
+                const uchar *s2 = data->texture.scanLine(y2);
+                int disty = (fy & 0x0000ffff) >> 12;
+                int idisty = 16 - disty;
+                while (b < end) {
+                    int x1 = (fx >> 16);
+                    int x2;
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+                    uint tl = fetch(s1, x1, data->texture.colorTable);
+                    uint tr = fetch(s1, x2, data->texture.colorTable);
+                    uint bl = fetch(s2, x1, data->texture.colorTable);
+                    uint br = fetch(s2, x2, data->texture.colorTable);
+                    int distx = (fx & 0x0000ffff) >> 12;
+                    int idistx = 16 - distx;
+                    *b = interpolate_4_pixels_16(tl, tr, bl, br, distx, disty, idistx, idisty);
+                    fx += fdx;
+                    ++b;
                 }
             }
+        } else { //rotation
+            if (fabs(data->m11) > 8 || fabs(data->m22) > 8) {
+                //if we are zooming more than 8 times, we use 8bit precision for the position.
+                while (b < end) {
+                    int x1 = (fx >> 16);
+                    int x2;
+                    int y1 = (fy >> 16);
+                    int y2;
 
-            Q_ASSERT(x1 >= 0 && x1 < image_width);
-            Q_ASSERT(x2 >= 0 && x2 < image_width);
-            Q_ASSERT(y1 >= 0 && y1 < image_height);
-            Q_ASSERT(y2 >= 0 && y2 < image_height);
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
 
-            const uchar *s1 = data->texture.scanLine(y1);
-            const uchar *s2 = data->texture.scanLine(y2);
+                    const uchar *s1 = data->texture.scanLine(y1);
+                    const uchar *s2 = data->texture.scanLine(y2);
 
-            uint tl = fetch(s1, x1, data->texture.colorTable);
-            uint tr = fetch(s1, x2, data->texture.colorTable);
-            uint bl = fetch(s2, x1, data->texture.colorTable);
-            uint br = fetch(s2, x2, data->texture.colorTable);
+                    uint tl = fetch(s1, x1, data->texture.colorTable);
+                    uint tr = fetch(s1, x2, data->texture.colorTable);
+                    uint bl = fetch(s2, x1, data->texture.colorTable);
+                    uint br = fetch(s2, x2, data->texture.colorTable);
 
-            int distx = (fx & 0x0000ffff) >> 8;
-            int disty = (fy & 0x0000ffff) >> 8;
-            int idistx = 256 - distx;
-            int idisty = 256 - disty;
+                    int distx = (fx & 0x0000ffff) >> 8;
+                    int disty = (fy & 0x0000ffff) >> 8;
+                    int idistx = 256 - distx;
+                    int idisty = 256 - disty;
 
-            uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx);
-            uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx);
-            *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty);
+                    uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx);
+                    uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx);
+                    *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty);
 
-            fx += fdx;
-            fy += fdy;
-            ++b;
+                    fx += fdx;
+                    fy += fdy;
+                    ++b;
+                }
+            } else {
+                //we are zooming less than 8x, use 4bit precision
+                while (b < end) {
+                    int x1 = (fx >> 16);
+                    int x2;
+                    int y1 = (fy >> 16);
+                    int y2;
+
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+
+                    const uchar *s1 = data->texture.scanLine(y1);
+                    const uchar *s2 = data->texture.scanLine(y2);
+
+                    uint tl = fetch(s1, x1, data->texture.colorTable);
+                    uint tr = fetch(s1, x2, data->texture.colorTable);
+                    uint bl = fetch(s2, x1, data->texture.colorTable);
+                    uint br = fetch(s2, x2, data->texture.colorTable);
+
+                    int distx = (fx & 0x0000ffff) >> 12;
+                    int disty = (fy & 0x0000ffff) >> 12;
+                    int idistx = 16 - distx;
+                    int idisty = 16 - disty;
+
+                    *b = interpolate_4_pixels_16(tl, tr, bl, br, distx, disty, idistx, idisty);
+
+                    fx += fdx;
+                    fy += fdy;
+                    ++b;
+                }
+            }
         }
     } else {
         const qreal fdx = data->m11;
@@ -779,37 +984,8 @@ const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator *
             int idistx = 256 - distx;
             int idisty = 256 - disty;
 
-            if (blendType == BlendTransformedBilinearTiled) {
-                x1 %= image_width;
-                if (x1 < 0) x1 += image_width;
-                x2 = x1 + 1;
-                x2 %= image_width;
-
-                y1 %= image_height;
-                if (y1 < 0) y1 += image_height;
-                y2 = y1 + 1;
-                y2 %= image_height;
-            } else {
-                if (x1 < 0) {
-                    x2 = x1 = 0;
-                } else if (x1 >= image_width - 1) {
-                    x2 = x1 = image_width - 1;
-                } else {
-                    x2 = x1 + 1;
-                }
-                if (y1 < 0) {
-                    y2 = y1 = 0;
-                } else if (y1 >= image_height - 1) {
-                    y2 = y1 = image_height - 1;
-                } else {
-                    y2 = y1 + 1;
-                }
-            }
-
-            Q_ASSERT(x1 >= 0 && x1 < image_width);
-            Q_ASSERT(x2 >= 0 && x2 < image_width);
-            Q_ASSERT(y1 >= 0 && y1 < image_height);
-            Q_ASSERT(y2 >= 0 && y2 < image_height);
+            fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+            fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
 
             const uchar *s1 = data->texture.scanLine(y1);
             const uchar *s2 = data->texture.scanLine(y2);
@@ -5212,37 +5388,8 @@ Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_bilinear_argb(int count, const
                     int y1 = (y >> 16);
                     int y2;
 
-                    if (blendType == BlendTransformedBilinearTiled) {
-                        x1 %= image_width;
-                        if (x1 < 0) x1 += image_width;
-                        x2 = x1 + 1;
-                        x2 %= image_width;
-
-                        y1 %= image_height;
-                        if (y1 < 0) y1 += image_height;
-                        y2 = y1 + 1;
-                        y2 %= image_height;
-
-                        Q_ASSERT(x1 >= 0 && x1 < image_width);
-                        Q_ASSERT(x2 >= 0 && x2 < image_width);
-                        Q_ASSERT(y1 >= 0 && y1 < image_height);
-                        Q_ASSERT(y2 >= 0 && y2 < image_height);
-                    } else {
-                        if (x1 < image_x1) {
-                            x2 = x1 = image_x1;
-                        } else if (x1 >= image_x2 - 1) {
-                            x2 = x1 = image_x2 - 1;
-                        } else {
-                            x2 = x1 + 1;
-                        }
-                        if (y1 < image_y1) {
-                            y2 = y1 = image_y1;
-                        } else if (y1 >= image_y2 - 1) {
-                            y2 = y1 = image_y2 - 1;
-                        } else {
-                            y2 = y1 + 1;
-                        }
-                    }
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
 
                     int y1_offset = y1 * scanline_offset;
                     int y2_offset = y2 * scanline_offset;
@@ -5322,37 +5469,8 @@ Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_bilinear_argb(int count, const
                     int idistx = 256 - distx;
                     int idisty = 256 - disty;
 
-                    if (blendType == BlendTransformedBilinearTiled) {
-                        x1 %= image_width;
-                        if (x1 < 0) x1 += image_width;
-                        x2 = x1 + 1;
-                        x2 %= image_width;
-
-                        y1 %= image_height;
-                        if (y1 < 0) y1 += image_height;
-                        y2 = y1 + 1;
-                        y2 %= image_height;
-
-                        Q_ASSERT(x1 >= 0 && x1 < image_width);
-                        Q_ASSERT(x2 >= 0 && x2 < image_width);
-                        Q_ASSERT(y1 >= 0 && y1 < image_height);
-                        Q_ASSERT(y2 >= 0 && y2 < image_height);
-                    } else {
-                        if (x1 < image_x1) {
-                            x2 = x1 = image_x1;
-                        } else if (x1 >= image_x2 - 1) {
-                            x2 = x1 = image_x2 - 1;
-                        } else {
-                            x2 = x1 + 1;
-                        }
-                        if (y1 < image_y1) {
-                            y2 = y1 = image_y1;
-                        } else if (y1 >= image_y2 - 1) {
-                            y2 = y1 = image_y2 - 1;
-                        } else {
-                            y2 = y1 + 1;
-                        }
-                    }
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+                    fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
 
                     int y1_offset = y1 * scanline_offset;
                     int y2_offset = y2 * scanline_offset;
@@ -7896,6 +8014,7 @@ void qInitDrawhelperAsm()
             qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_neon;
             qBlendFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_rgb16_neon;
             qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB16] = qt_blend_rgb16_on_argb32_neon;
+            qBlendFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_blend_rgb16_on_rgb16_neon;
 
             qScaleFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_scale_image_argb32_on_rgb16_neon;
             qScaleFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_scale_image_rgb16_on_rgb16_neon;
diff --git a/src/gui/painting/qdrawhelper_neon.cpp b/src/gui/painting/qdrawhelper_neon.cpp
index ed15c5c..0afd077 100644
--- a/src/gui/painting/qdrawhelper_neon.cpp
+++ b/src/gui/painting/qdrawhelper_neon.cpp
@@ -167,6 +167,14 @@ pixman_composite_scanline_over_asm_neon (int32_t         w,
                                          const uint32_t *dst,
                                          const uint32_t *src);
 
+extern "C" void
+pixman_composite_src_0565_0565_asm_neon (int32_t   w,
+                                         int32_t   h,
+                                         uint16_t *dst,
+                                         int32_t   dst_stride,
+                                         uint16_t *src,
+                                         int32_t   src_stride);
+
 // qblendfunctions.cpp
 void qt_blend_argb32_on_rgb16_const_alpha(uchar *destPixels, int dbpl,
                                           const uchar *srcPixels, int sbpl,
@@ -200,6 +208,96 @@ void qt_blend_rgb16_on_argb32_neon(uchar *destPixels, int dbpl,
     pixman_composite_src_0565_8888_asm_neon(w, h, dst, dbpl, src, sbpl);
 }
 
+// qblendfunctions.cpp
+void qt_blend_rgb16_on_rgb16(uchar *dst, int dbpl,
+                             const uchar *src, int sbpl,
+                             int w, int h,
+                             int const_alpha);
+
+template <int N>
+static inline void scanLineBlit16(quint16 *dst, quint16 *src, int dstride)
+{
+    if (N >= 2) {
+        ((quint32 *)dst)[0] = ((quint32 *)src)[0];
+        __builtin_prefetch(dst + dstride, 1, 0);
+    }
+    for (int i = 1; i < N/2; ++i)
+        ((quint32 *)dst)[i] = ((quint32 *)src)[i];
+    if (N & 1)
+        dst[N-1] = src[N-1];
+}
+
+template <int Width>
+static inline void blockBlit16(quint16 *dst, quint16 *src, int dstride, int sstride, int h)
+{
+    union {
+        quintptr address;
+        quint16 *pointer;
+    } u;
+
+    u.pointer = dst;
+
+    if (u.address & 2) {
+        while (h--) {
+            // align dst
+            dst[0] = src[0];
+            if (Width > 1)
+                scanLineBlit16<Width-1>(dst + 1, src + 1, dstride);
+            dst += dstride;
+            src += sstride;
+        }
+    } else {
+        while (h--) {
+            scanLineBlit16<Width>(dst, src, dstride);
+
+            dst += dstride;
+            src += sstride;
+        }
+    }
+}
+
+void qt_blend_rgb16_on_rgb16_neon(uchar *destPixels, int dbpl,
+                                  const uchar *srcPixels, int sbpl,
+                                  int w, int h,
+                                  int const_alpha)
+{
+    // testing show that the default memcpy is faster for widths 150 and up
+    if (const_alpha != 256 || w >= 150) {
+        qt_blend_rgb16_on_rgb16(destPixels, dbpl, srcPixels, sbpl, w, h, const_alpha);
+        return;
+    }
+
+    int dstride = dbpl / 2;
+    int sstride = sbpl / 2;
+
+    quint16 *dst = (quint16 *) destPixels;
+    quint16 *src = (quint16 *) srcPixels;
+
+    switch (w) {
+#define BLOCKBLIT(n) case n: blockBlit16<n>(dst, src, dstride, sstride, h); return;
+    BLOCKBLIT(1);
+    BLOCKBLIT(2);
+    BLOCKBLIT(3);
+    BLOCKBLIT(4);
+    BLOCKBLIT(5);
+    BLOCKBLIT(6);
+    BLOCKBLIT(7);
+    BLOCKBLIT(8);
+    BLOCKBLIT(9);
+    BLOCKBLIT(10);
+    BLOCKBLIT(11);
+    BLOCKBLIT(12);
+    BLOCKBLIT(13);
+    BLOCKBLIT(14);
+    BLOCKBLIT(15);
+#undef BLOCKBLIT
+    default:
+        break;
+    }
+
+    pixman_composite_src_0565_0565_asm_neon (w, h, dst, dstride, src, sstride);
+}
+
 extern "C" void blend_8_pixels_argb32_on_rgb16_neon(quint16 *dst, const quint32 *src, int const_alpha);
 
 void qt_blend_argb32_on_rgb16_neon(uchar *destPixels, int dbpl,
diff --git a/src/gui/painting/qdrawhelper_neon_p.h b/src/gui/painting/qdrawhelper_neon_p.h
index 451edbc..d25b7ec 100644
--- a/src/gui/painting/qdrawhelper_neon_p.h
+++ b/src/gui/painting/qdrawhelper_neon_p.h
@@ -84,6 +84,11 @@ void qt_blend_rgb16_on_argb32_neon(uchar *destPixels, int dbpl,
                                    int w, int h,
                                    int const_alpha);
 
+void qt_blend_rgb16_on_rgb16_neon(uchar *destPixels, int dbpl,
+                                  const uchar *srcPixels, int sbpl,
+                                  int w, int h,
+                                  int const_alpha);
+
 void qt_alphamapblit_quint16_neon(QRasterBuffer *rasterBuffer,
                                   int x, int y, quint32 color,
                                   const uchar *bitmap,
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h
index 75f42a0..5747da5 100644
--- a/src/gui/painting/qdrawhelper_p.h
+++ b/src/gui/painting/qdrawhelper_p.h
@@ -62,6 +62,7 @@
 #define QT_FT_END_HEADER
 #endif
 #include "private/qrasterdefs_p.h"
+#include <private/qsimd_p.h>
 
 #ifdef Q_WS_QWS
 #include "QtGui/qscreen_qws.h"
@@ -69,13 +70,6 @@
 
 QT_BEGIN_NAMESPACE
 
-#if defined(Q_OS_MAC) && (defined(__ppc__) || defined(__ppc64__))
-#undef QT_HAVE_MMX
-#undef QT_HAVE_SSE
-#undef QT_HAVE_SSE2
-#undef QT_HAVE_3DNOW
-#endif
-
 #if defined(Q_CC_MSVC) && _MSCVER <= 1300 && !defined(Q_CC_INTEL)
 #define Q_STATIC_TEMPLATE_SPECIALIZATION static
 #else
diff --git a/src/gui/painting/qdrawhelper_sse2.cpp b/src/gui/painting/qdrawhelper_sse2.cpp
index 30454af..5b674b5 100644
--- a/src/gui/painting/qdrawhelper_sse2.cpp
+++ b/src/gui/painting/qdrawhelper_sse2.cpp
@@ -43,7 +43,6 @@
 
 #ifdef QT_HAVE_SSE2
 
-#include <private/qsimd_p.h>
 #include <private/qdrawingprimitive_sse2_p.h>
 #include <private/qpaintengine_raster_p.h>
 
diff --git a/src/gui/painting/qdrawhelper_ssse3.cpp b/src/gui/painting/qdrawhelper_ssse3.cpp
index 9c02009..4cb4089 100644
--- a/src/gui/painting/qdrawhelper_ssse3.cpp
+++ b/src/gui/painting/qdrawhelper_ssse3.cpp
@@ -39,11 +39,10 @@
 **
 ****************************************************************************/
 
+#include <private/qdrawhelper_x86_p.h>
 
 #ifdef QT_HAVE_SSSE3
 
-#include <private/qsimd_p.h>
-#include <private/qdrawhelper_x86_p.h>
 #include <private/qdrawingprimitive_sse2_p.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index ee590a4..c6046ac 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -5863,7 +5863,8 @@ void QPainter::drawStaticText(const QPointF &topLeftPosition, const QStaticText
     }
 
     bool paintEngineSupportsTransformations = d->extended->type() == QPaintEngine::OpenGL2
-                                           || d->extended->type() == QPaintEngine::OpenVG;
+                                           || d->extended->type() == QPaintEngine::OpenVG
+                                           || d->extended->type() == QPaintEngine::OpenGL;
 
     if (paintEngineSupportsTransformations && !staticText_d->untransformedCoordinates) {
         staticText_d->untransformedCoordinates = true;
@@ -9027,7 +9028,7 @@ void QPainter::drawPixmapFragments(const PixmapFragment *fragments, int fragment
 {
     Q_D(QPainter);
 
-    if (!d->engine)
+    if (!d->engine || pixmap.isNull())
         return;
 
 #ifndef QT_NO_DEBUG
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp
index c30091e..119217a 100644
--- a/src/gui/text/qtextengine.cpp
+++ b/src/gui/text/qtextengine.cpp
@@ -2139,8 +2139,11 @@ bool QTextEngine::LayoutData::reallocate(int totalGlyphs)
 
     void **newMem = memory;
     newMem = (void **)::realloc(memory_on_stack ? 0 : memory, newAllocated*sizeof(void *));
-    Q_CHECK_PTR(newMem);
-    if (memory_on_stack && newMem)
+    if (!newMem) {
+        layoutState = LayoutFailed;
+        return false;
+    }
+    if (memory_on_stack)
         memcpy(newMem, memory, allocated*sizeof(void *));
     memory = newMem;
     memory_on_stack = false;
diff --git a/src/gui/widgets/qdatetimeedit.cpp b/src/gui/widgets/qdatetimeedit.cpp
index 7a61dc7..bd6c577 100644
--- a/src/gui/widgets/qdatetimeedit.cpp
+++ b/src/gui/widgets/qdatetimeedit.cpp
@@ -248,7 +248,7 @@ void QDateTimeEdit::setDateTime(const QDateTime &datetime)
 
 /*!
   \property QDateTimeEdit::date
-  \brief the QDate that is set in the QDateTimeEdit
+  \brief the QDate that is set in the widget
 
   By default, this property contains a date that refers to January 1, 2000.
 
@@ -279,7 +279,7 @@ void QDateTimeEdit::setDate(const QDate &date)
 
 /*!
   \property QDateTimeEdit::time
-  \brief the QTime that is set in the QDateTimeEdit
+  \brief the QTime that is set in the widget
 
   By default, this property contains a time of 00:00:00 and 0 milliseconds.
 
@@ -1555,13 +1555,6 @@ QTimeEdit::QTimeEdit(const QTime &time, QWidget *parent)
 {
 }
 
-/*!
-    \property QTimeEdit::time
-    \brief the QTime that is shown in the widget
-
-    By default, this property contains a time of 00:00:00 and 0 milliseconds.
-*/
-
 
 /*!
   \class QDateEdit
@@ -1616,13 +1609,6 @@ QDateEdit::QDateEdit(const QDate &date, QWidget *parent)
 {
 }
 
-/*!
-    \property QDateEdit::date
-    \brief the QDate that is shown in the widget
-
-    By default, this property contains a date referring to January 1, 2000.
-*/
-
 
 // --- QDateTimeEditPrivate ---
 
diff --git a/src/gui/widgets/qlinecontrol.cpp b/src/gui/widgets/qlinecontrol.cpp
index d027b91..7f0c6c8 100644
--- a/src/gui/widgets/qlinecontrol.cpp
+++ b/src/gui/widgets/qlinecontrol.cpp
@@ -464,6 +464,8 @@ void QLineControl::processInputMethodEvent(QInputMethodEvent *event)
         if (a.type == QInputMethodEvent::Cursor) {
             m_preeditCursor = a.start;
             m_hideCursor = !a.length;
+            if (m_hideCursor)
+                setCursorBlinkPeriod(0);
         } else if (a.type == QInputMethodEvent::TextFormat) {
             QTextCharFormat f = qvariant_cast<QTextFormat>(a.value).toCharFormat();
             if (f.isValid()) {
@@ -527,7 +529,7 @@ void QLineControl::draw(QPainter *painter, const QPoint &offset, const QRect &cl
         int cursor = m_cursor;
         if (m_preeditCursor != -1)
             cursor += m_preeditCursor;
-        if(!m_blinkPeriod || m_blinkStatus)
+        if (!m_hideCursor && (!m_blinkPeriod || m_blinkStatus))
             m_textLayout.drawCursor(painter, offset, cursor, m_cursorWidth);
     }
 }