Merge branch '4.7-upstream' into 4.7-doc

8 files changed, 18 insertions, 80 deletions

diff --git a/src/gui/egl/qegl.cpp b/src/gui/egl/qegl.cpp
index 605b1e6..af3b79a 100644
--- a/src/gui/egl/qegl.cpp
+++ b/src/gui/egl/qegl.cpp
@@ -259,7 +259,7 @@ EGLConfig QEgl::defaultConfig(int devType, API api, ConfigOptions options)
 
     // Add paint engine requirements
     if (api == OpenVG) {
-#ifndef QVG_SCISSOR_CLIP
+#if !defined(QVG_SCISSOR_CLIP) && defined(EGL_ALPHA_MASK_SIZE)
         configAttribs.setValue(EGL_ALPHA_MASK_SIZE, 1);
 #endif
     } else {
diff --git a/src/gui/egl/qegl_p.h b/src/gui/egl/qegl_p.h
index c214e88..aa08934 100644
--- a/src/gui/egl/qegl_p.h
+++ b/src/gui/egl/qegl_p.h
@@ -65,6 +65,10 @@ QT_BEGIN_INCLUDE_NAMESPACE
 #else
 #   include <EGL/egl.h>
 #endif
+#if !defined(EGL_VERSION_1_2)
+typedef unsigned int EGLenum;
+typedef void *EGLClientBuffer;
+#endif
 #else
 
 //types from egltypes.h for compiling stub without EGL headers
diff --git a/src/gui/egl/qeglproperties.cpp b/src/gui/egl/qeglproperties.cpp
index 65b4d85..4b8ca9a 100644
--- a/src/gui/egl/qeglproperties.cpp
+++ b/src/gui/egl/qeglproperties.cpp
@@ -241,8 +241,10 @@ void QEglProperties::setRenderableType(QEgl::API api)
 // reductions in complexity are possible.
 bool QEglProperties::reduceConfiguration()
 {
+#ifdef EGL_SWAP_BEHAVIOR
     if (value(EGL_SWAP_BEHAVIOR) != EGL_DONT_CARE)
         removeValue(EGL_SWAP_BEHAVIOR);
+#endif
 
 #ifdef EGL_VG_ALPHA_FORMAT_PRE_BIT
     // For OpenVG, we sometimes try to create a surface using a pre-multiplied format. If we can't
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 89c9e4d..81ec414 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -5270,7 +5270,6 @@ void QGraphicsScene::drawItems(QPainter *painter,
     if (!d->unpolishedItems.isEmpty())
         d->_q_polishItems();
 
-    d->updateAll = false;
     QTransform viewTransform = painter->worldTransform();
     Q_UNUSED(options);
 
@@ -5279,6 +5278,7 @@ void QGraphicsScene::drawItems(QPainter *painter,
     QRegion *expose = 0;
     const quint32 oldRectAdjust = d->rectAdjust;
     if (view) {
+        d->updateAll = false;
         expose = &view->d_func()->exposedRegion;
         if (view->d_func()->optimizationFlags & QGraphicsView::DontAdjustForAntialiasing)
             d->rectAdjust = 1;
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index d6fb630..caeeeb9 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -65,6 +65,7 @@
 #include "qcolormap.h"
 #include "qdebug.h"
 #include "private/qgraphicssystemfactory_p.h"
+#include "private/qgraphicssystem_p.h"
 #include "private/qstylesheetstyle_p.h"
 #include "private/qstyle_p.h"
 #include "qmessagebox.h"
diff --git a/src/gui/painting/qdrawhelper_sse2.cpp b/src/gui/painting/qdrawhelper_sse2.cpp
index ba2ba32..ac73958 100644
--- a/src/gui/painting/qdrawhelper_sse2.cpp
+++ b/src/gui/painting/qdrawhelper_sse2.cpp
@@ -266,10 +266,10 @@ void qt_memfill32_sse2(quint32 *dest, quint32 value, int count)
 
     int n = (count128 + 3) / 4;
     switch (count128 & 0x3) {
-    case 0: do { _mm_store_si128(dst128++, value128);
-    case 3:      _mm_store_si128(dst128++, value128);
-    case 2:      _mm_store_si128(dst128++, value128);
-    case 1:      _mm_store_si128(dst128++, value128);
+    case 0: do { _mm_stream_si128(dst128++, value128);
+    case 3:      _mm_stream_si128(dst128++, value128);
+    case 2:      _mm_stream_si128(dst128++, value128);
+    case 1:      _mm_stream_si128(dst128++, value128);
     } while (--n > 0);
     }
 
diff --git a/src/gui/painting/qdrawhelper_ssse3.cpp b/src/gui/painting/qdrawhelper_ssse3.cpp
index 4cb4089..fb5602e 100644
--- a/src/gui/painting/qdrawhelper_ssse3.cpp
+++ b/src/gui/painting/qdrawhelper_ssse3.cpp
@@ -79,69 +79,6 @@ inline static void blend_pixel(quint32 &dst, const quint32 src)
     }
 
 
-#define BLEND_SOURCE_OVER_ARGB32_FIRST_ROW_SSSE3(dst, src, length, nullVector, half, one, colorMask, alphaMask) { \
-    int x = 0; \
-\
-    /* First, get dst aligned. */ \
-    const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;\
-    const int prologLength = qMin(length, offsetToAlignOn16Bytes);\
-\
-    for (; x < prologLength; ++x) {\
-        blend_pixel(dst[x], src[x]); \
-    } \
-\
-    const int minusOffsetToAlignSrcOn16Bytes = (reinterpret_cast<quintptr>(&(src[x])) >> 2) & 0x3;\
-\
-    if (!minusOffsetToAlignSrcOn16Bytes) {\
-        /* src is aligned, usual algorithm but with aligned operations.\
-           See the SSE2 version for more documentation on the algorithm itself. */\
-        const __m128i alphaShuffleMask = _mm_set_epi8(0xff,15,0xff,15,0xff,11,0xff,11,0xff,7,0xff,7,0xff,3,0xff,3);\
-        for (; x < length-3; x += 4) { \
-            const __m128i srcVector = _mm_load_si128((__m128i *)&src[x]); \
-            const __m128i srcVectorAlpha = _mm_and_si128(srcVector, alphaMask); \
-            if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, alphaMask)) == 0xffff) { \
-                _mm_store_si128((__m128i *)&dst[x], srcVector); \
-            } else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) != 0xffff) { \
-                __m128i alphaChannel = _mm_shuffle_epi8(srcVector, alphaShuffleMask); \
-                alphaChannel = _mm_sub_epi16(one, alphaChannel); \
-                const __m128i dstVector = _mm_load_si128((__m128i *)&dst[x]); \
-                __m128i destMultipliedByOneMinusAlpha; \
-                BYTE_MUL_SSE2(destMultipliedByOneMinusAlpha, dstVector, alphaChannel, colorMask, half); \
-                const __m128i result = _mm_add_epi8(srcVector, destMultipliedByOneMinusAlpha); \
-                _mm_store_si128((__m128i *)&dst[x], result); \
-            } \
-        } /* end for() */\
-    } else if ((length - x) >= 8) {\
-        /* We are at the first line, so "x - minusOffsetToAlignSrcOn16Bytes" could go before src, and\
-           generate an invalid access. */\
-\
-        /* We use two vectors to extract the src: prevLoaded for the first pixels, lastLoaded for the current pixels. */\
-        __m128i srcVectorPrevLoaded;\
-        if (minusOffsetToAlignSrcOn16Bytes > prologLength) {\
-            /* We go forward 4 pixels to avoid reading before src. */\
-            for (; x < prologLength + 4; ++x)\
-                blend_pixel(dst[x], src[x]); \
-        }\
-        srcVectorPrevLoaded = _mm_load_si128((__m128i *)&src[x - minusOffsetToAlignSrcOn16Bytes]);\
-        const int palignrOffset = minusOffsetToAlignSrcOn16Bytes << 2;\
-\
-        const __m128i alphaShuffleMask = _mm_set_epi8(0xff,15,0xff,15,0xff,11,0xff,11,0xff,7,0xff,7,0xff,3,0xff,3);\
-        switch (palignrOffset) {\
-        case 4:\
-            BLENDING_LOOP(4, length)\
-            break;\
-        case 8:\
-            BLENDING_LOOP(8, length)\
-            break;\
-        case 12:\
-            BLENDING_LOOP(12, length)\
-            break;\
-        }\
-    }\
-    for (; x < length; ++x) \
-        blend_pixel(dst[x], src[x]); \
-}
-
 // Basically blend src over dst with the const alpha defined as constAlphaVector.
 // nullVector, half, one, colorMask are constant accross the whole image/texture, and should be defined as:
 //const __m128i nullVector = _mm_set1_epi32(0);
@@ -153,7 +90,7 @@ inline static void blend_pixel(quint32 &dst, const quint32 src)
 // The computation being done is:
 // result = s + d * (1-alpha)
 // with shortcuts if fully opaque or fully transparent.
-#define BLEND_SOURCE_OVER_ARGB32_MAIN_SSSE3(dst, src, length, nullVector, half, one, colorMask, alphaMask) { \
+#define BLEND_SOURCE_OVER_ARGB32_SSSE3(dst, src, length, nullVector, half, one, colorMask, alphaMask) { \
     int x = 0; \
 \
     /* First, get dst aligned. */ \
@@ -218,14 +155,8 @@ void qt_blend_argb32_on_argb32_ssse3(uchar *destPixels, int dbpl,
         const __m128i one = _mm_set1_epi16(0xff);
         const __m128i colorMask = _mm_set1_epi32(0x00ff00ff);
 
-        // We have to unrol the first row in order to deal with the load on unaligned data
-        // prior to the src pointer.
-        BLEND_SOURCE_OVER_ARGB32_FIRST_ROW_SSSE3(dst, src, w, nullVector, half, one, colorMask, alphaMask);
-        dst = (quint32 *)(((uchar *) dst) + dbpl);
-        src = (const quint32 *)(((const uchar *) src) + sbpl);
-
-        for (int y = 1; y < h; ++y) {
-            BLEND_SOURCE_OVER_ARGB32_MAIN_SSSE3(dst, src, w, nullVector, half, one, colorMask, alphaMask);
+        for (int y = 0; y < h; ++y) {
+            BLEND_SOURCE_OVER_ARGB32_SSSE3(dst, src, w, nullVector, half, one, colorMask, alphaMask);
             dst = (quint32 *)(((uchar *) dst) + dbpl);
             src = (const quint32 *)(((const uchar *) src) + sbpl);
         }
diff --git a/src/gui/text/qfontengine.cpp b/src/gui/text/qfontengine.cpp
index 569853c..0dfd295 100644
--- a/src/gui/text/qfontengine.cpp
+++ b/src/gui/text/qfontengine.cpp
@@ -631,10 +631,10 @@ QImage QFontEngine::alphaMapForGlyph(glyph_t glyph)
     if (glyph_width <= 0 || glyph_height <= 0)
         return QImage();
     QFixedPoint pt;
-    pt.x = 0;
+    pt.x = -glyph_x;
     pt.y = -glyph_y; // the baseline
     QPainterPath path;
-    QImage im(glyph_width + qAbs(glyph_x) + 4, glyph_height, QImage::Format_ARGB32_Premultiplied);
+    QImage im(glyph_width + 4, glyph_height, QImage::Format_ARGB32_Premultiplied);
     im.fill(Qt::transparent);
     QPainter p(&im);
     p.setRenderHint(QPainter::Antialiasing);