Merge branch '4.7' of git://scm.dev.nokia.troll.no/qt/qt-water-team

* '4.7' of git://scm.dev.nokia.troll.no/qt/qt-water-team: (265 commits)
  Partial update window surfaces always need a repaint before flush.
  Fix for misplaced endif in qglobal.h.
  Implement language fallback logic for localize_deployment
  Added missing ifdefs to allow compilation on older Symbian versions.
  Multiple screen support for Symbian in QDeskopWidget.
  Adding quote around files in QMAKE_CLEAN to tackle wildcard issue
  Bump Qt version to 4.7.3
  Fix unstable qdeclarativeflickable test.
  Added native image handle provider header.
  Fix possible bearer management Crash with Panic E32USER-CBase, 69
  Added native image handle provider support in pixmaps on openvg.
  Correcting incorrect ordinal introduced by the split view changes.
  Support partial input mode
  Update TextEdit's visible selection when only the anchor changes.
  Fixed memory leak in GL texture cache with QRuntimePixmapData.
  Avoid compiler warnings in openvg on win32.
  Updated def files with new QVGPixmapData function.
  VGImage readback support in QPixmap on OpenVG.
  Invalidate the EGL surface of QMeeGoLivePixmapData when switching to Raster
  QNetworkCookie: fix quoted values
  ...

7 files changed, 95 insertions, 96 deletions

diff --git a/src/plugins/graphicssystems/meego/dithering.cpp b/src/plugins/graphicssystems/meego/dithering.cpp
index 91e3337..2561c22 100644
--- a/src/plugins/graphicssystems/meego/dithering.cpp
+++ b/src/plugins/graphicssystems/meego/dithering.cpp
@@ -39,15 +39,22 @@
 **
 ****************************************************************************/
 
-// This is an implementation of the 32bit => 16bit Floyd-Steinberg dithering.
+// Implements two dithering methods:
+//
+//  * convertRGBA32_to_RGB565
+//
+// This is implemented using Ordered Bayer Dithering. The code has been adapted
+// from QX11PixmapData::fromImage. This method was originally implemented using
+// Floyd-Steinberg dithering but was later changed to Ordered Dithering because
+// of the better quality of the results.
+//
+//  * convertRGBA32_to_RGBA4444
+//
+// This is implemented using Floyd-Steinberg dithering.
+//
 // The alghorithm used here is not the fastest possible but it's prolly fast enough:
 // uses look-up tables, integer-only arthmetics and works in one pass on two lines
 // at a time. It's a high-quality dithering using 1/8 diffusion precission.
-// Two functions here to look at:
-//
-//   * convertRGBA32_to_RGB565
-//   * convertRGBA32_to_RGBA4444
-//
 // Each channel (RGBA) is diffused independently and alpha is dithered too.
 
 #include <string.h>
@@ -76,113 +83,63 @@
 // Converts incoming RGB32 (QImage::Format_RGB32) to RGB565. Returns the newly allocated data.
 unsigned short* convertRGB32_to_RGB565(const unsigned char *in, int width, int height, int stride)
 {
+    static bool thresholdMapInitialized = false;
+    static int thresholdMap[16][16];
+
+    if (!thresholdMapInitialized) {
+        int i;
+        int j;
+        int n;
+
+        thresholdMap[0][0] = 0;
+        thresholdMap[1][0] = 2;
+        thresholdMap[0][1] = 3;
+        thresholdMap[1][1] = 1;
+
+        for (n=2; n<16; n*=2) {
+            for (i=0; i<n; i++) {
+                for (j=0; j<n; j++) {
+                    thresholdMap[i][j]    *= 4;
+                    thresholdMap[i+n][j]   = thresholdMap[i][j] + 2;
+                    thresholdMap[i][j+n]   = thresholdMap[i][j] + 3;
+                    thresholdMap[i+n][j+n] = thresholdMap[i][j] + 1;
+                }
+            }
+        }
+
+        thresholdMapInitialized = true;
+    }
+
     // Output line stride. Aligned to 4 bytes.
     int alignedWidth = width;
     if (alignedWidth % 2 > 0)
         alignedWidth++;
 
     // Will store output
-    unsigned short *out = (unsigned short *) malloc(alignedWidth * height * 2);
-
-    // Lookup tables for the 8bit => 6bit and 8bit => 5bit conversion
-    unsigned char lookup_8bit_to_5bit[256];
-    short lookup_8bit_to_5bit_diff[256];
-    unsigned char lookup_8bit_to_6bit[256];
-    short lookup_8bit_to_6bit_diff[256];
-
-    // Macros for the conversion using the lookup table.
-    #define CONVERT_8BIT_TO_5BIT(v) (lookup_8bit_to_5bit[v])
-    #define DIFF_8BIT_TO_5BIT(v) (lookup_8bit_to_5bit_diff[v])
-
-    #define CONVERT_8BIT_TO_6BIT(v) (lookup_8bit_to_6bit[v])
-    #define DIFF_8BIT_TO_6BIT(v) (lookup_8bit_to_6bit_diff[v])
-
-    int i;
-    int x, y, c; // Pixel we're processing. c is component number (0, 1, 2 for r, b, b)
-    short component[3]; // Stores the new components (r, g, b) for pixel produced during conversion
-    short diff; // The difference between the converted value and the original one. To be accumulated.
-    QVarLengthArray <short> accumulatorData(3 * width * 2); // Data for three acumulators for r, g, b. Each accumulator is two lines.
-    short *accumulator[3]; // Helper for accessing the accumulator on a per-channel basis more easily.
-    accumulator[0] = accumulatorData.data();
-    accumulator[1] = accumulatorData.data() + width;
-    accumulator[2] = accumulatorData.data() + (width * 2);
-
-    // Produce the conversion lookup tables.
-    for (i = 0; i < 256; i++) {
-        lookup_8bit_to_5bit[i] = round(i / 8.0);
-
-        // Before bitshifts: (i * 8) - (... * 8 * 8)
-        lookup_8bit_to_5bit_diff[i] = (i << 3) - (lookup_8bit_to_5bit[i] << 6);
-        if (lookup_8bit_to_5bit[i] > 31)
-            lookup_8bit_to_5bit[i] -= 1;
-
-        lookup_8bit_to_6bit[i] = round(i / 4.0);
-
-        // Before bitshifts: (i * 8) - (... * 4 * 8)
-        lookup_8bit_to_6bit_diff[i] = (i << 3) - (lookup_8bit_to_6bit[i] << 5);
-        if (lookup_8bit_to_6bit[i] > 63)
-            lookup_8bit_to_6bit[i] -= 1;
-    }
+    unsigned short *out = (unsigned short *)malloc (alignedWidth * height * 2);
 
-    // Clear the accumulators
-    memset(accumulator[0], 0, width * 4);
-    memset(accumulator[1], 0, width * 4);
-    memset(accumulator[2], 0, width * 4);
+    int x;
+    int y;
+    int threshold;
 
     // For each line...
     for (y = 0; y < height; y++) {
 
-        // For each accumulator, move the second line (index 1) to replace the first line (index 0).
-        // Clear the second line (index 1)
-        memcpy(accumulator[0], accumulator[0] + width, width * 2);
-        memset(accumulator[0] + width, 0, width * 2);
-
-        memcpy(accumulator[1], accumulator[1] + width, width * 2);
-        memset(accumulator[1] + width, 0, width * 2);
-
-        memcpy(accumulator[2], accumulator[2] + width, width * 2);
-        memset(accumulator[2] + width, 0, width * 2);
-
         // For each column....
         for (x = 0; x < width; x++) {
 
-            // For each component (r, g, b)...
-            for (c = 0; c < 3; c++) {
+            int r = GET_RGBA_COMPONENT(in, x, y, stride, 0);
+            int g = GET_RGBA_COMPONENT(in, x, y, stride, 1);
+            int b = GET_RGBA_COMPONENT(in, x, y, stride, 2);
 
-                // Get the 8bit value from the original image
-                component[c] = GET_RGBA_COMPONENT(in, x, y, stride, c);
-
-                // Add the diffusion for this pixel we stored in the accumulator.
-                // >> 7 because the values in accumulator are stored * 128
-                if (x != 0 && x != (width - 1)) {
-                    if (accumulator[c][x] >> 7 != 0)
-                    component[c] += rand() % accumulator[c][x] >> 7;
-                }
-
-                // Make sure we're not over the boundaries.
-                CLAMP_256(component[c]);
-
-                // For green component we use 6 bits. Otherwise 5 bits.
-                // Store the difference from converting 8bit => 6 bit and the orig pixel.
-                // Convert 8bit => 6(5) bit.
-                if (c == 1) {
-                    diff = DIFF_8BIT_TO_6BIT(component[c]);
-                    component[c] = CONVERT_8BIT_TO_6BIT(component[c]);
-                } else {
-                    diff = DIFF_8BIT_TO_5BIT(component[c]);
-                    component[c] = CONVERT_8BIT_TO_5BIT(component[c]);
-                }
+            threshold = thresholdMap[x%16][y%16];
 
-                // Distribute the difference according to the matrix in the
-                // accumulation bufffer.
-                ACCUMULATE(accumulator[c], x + 1, 0, width, diff * 3);
-                ACCUMULATE(accumulator[c], x - 1, 1, width, diff * 5);
-                ACCUMULATE(accumulator[c], x, 1, width, diff * 5);
-                ACCUMULATE(accumulator[c], x + 1, 1, width, diff * 3);
-            }
+            if (r <= (255-(1<<3)) && ((r<<5) & 255) > threshold) r += (1<<3);
+            if (g <= (255-(1<<2)) && ((g<<6) & 255) > threshold) g += (1<<2);
+            if (b <= (255-(1<<3)) && ((b<<5) & 255) > threshold) b += (1<<3);
 
             // Write the newly produced pixel
-            PUT_565(out, x, y, alignedWidth, component[2], component[1], component[0]);
+            PUT_565(out, x, y, alignedWidth, ((b >> 3) & 0x1f), ((g >> 2) & 0x3f), ((r >> 3) & 0x1f));
         }
     }
 
diff --git a/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
index a70d232..13eab7f 100644
--- a/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
+++ b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
@@ -171,7 +171,7 @@ QPixmapData *QMeeGoGraphicsSystem::pixmapDataFromEGLSharedImage(Qt::HANDLE handl
         return QMeeGoGraphicsSystem::wrapPixmapData(pmd);
     } else {
         QRasterPixmapData *pmd = new QRasterPixmapData(QPixmapData::PixmapType);
-        pmd->fromImage(softImage, Qt::NoOpaqueDetection);
+        pmd->fromImage(softImage, Qt::NoFormatConversion);
 
         // Make sure that the image was not converted in any way
         if (pmd->buffer()->data_ptr()->data !=
@@ -335,3 +335,8 @@ void qt_meego_destroy_fence_sync(void* fs)
 {
     return QMeeGoGraphicsSystem::destroyFenceSync(fs);
 }
+
+void qt_meego_invalidate_live_surfaces(void)
+{
+    return QMeeGoLivePixmapData::invalidateSurfaces();
+}
diff --git a/src/plugins/graphicssystems/meego/qmeegographicssystem.h b/src/plugins/graphicssystems/meego/qmeegographicssystem.h
index 323ce1f..27a4e7a 100644
--- a/src/plugins/graphicssystems/meego/qmeegographicssystem.h
+++ b/src/plugins/graphicssystems/meego/qmeegographicssystem.h
@@ -103,6 +103,7 @@ extern "C" {
     Q_DECL_EXPORT Qt::HANDLE qt_meego_live_texture_get_handle(QPixmap *pixmap);
     Q_DECL_EXPORT void* qt_meego_create_fence_sync(void);
     Q_DECL_EXPORT void qt_meego_destroy_fence_sync(void* fs);
+    Q_DECL_EXPORT void qt_meego_invalidate_live_surfaces(void);
 }
 
 #endif 
diff --git a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp
index e4f1900..2a2a098 100644
--- a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp
+++ b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp
@@ -49,6 +49,8 @@
 #include <private/qpixmap_x11_p.h>
 #include <stdio.h>
 
+static QMeeGoLivePixmapDataList all_live_pixmaps;
+
 static EGLint lock_attribs[] = {
     EGL_MAP_PRESERVE_PIXELS_KHR, EGL_TRUE,
     EGL_LOCK_USAGE_HINT_KHR, EGL_READ_SURFACE_BIT_KHR | EGL_WRITE_SURFACE_BIT_KHR,
@@ -118,21 +120,29 @@ QMeeGoLivePixmapData::QMeeGoLivePixmapData(int w, int h, QImage::Format format)
     backingX11Pixmap = new QPixmap(pmd);
 
     initializeThroughEGLImage();
+
+    pos = all_live_pixmaps.insert(all_live_pixmaps.begin(), this);
 }
 
 QMeeGoLivePixmapData::QMeeGoLivePixmapData(Qt::HANDLE h) : QGLPixmapData(QPixmapData::PixmapType)
 {
     backingX11Pixmap = new QPixmap(QPixmap::fromX11Pixmap(h));
     initializeThroughEGLImage();
+
+    pos = all_live_pixmaps.insert(all_live_pixmaps.begin(), this);
 }
 
 QMeeGoLivePixmapData::~QMeeGoLivePixmapData()
 {
     delete backingX11Pixmap;
+    all_live_pixmaps.erase(pos);
 }
 
 void QMeeGoLivePixmapData::initializeThroughEGLImage()
 {
+    if (texture()->id != 0)
+        return;
+
     QGLShareContextScope ctx(qt_gl_share_widget()->context());
     QMeeGoExtensions::ensureInitialized();
 
@@ -245,6 +255,8 @@ bool QMeeGoLivePixmapData::scroll(int dx, int dy, const QRect &rect)
 
 EGLSurface QMeeGoLivePixmapData::getSurfaceForBackingPixmap()
 {
+    initializeThroughEGLImage();
+
     // This code is a crative remix of the stuff that can be found in the
     // Qt's TFP implementation in /src/opengl/qgl_x11egl.cpp ::bindiTextureFromNativePixmap
     QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(backingX11Pixmap->data_ptr().data());
@@ -290,3 +302,12 @@ void QMeeGoLivePixmapData::destroySurfaceForPixmapData(QPixmapData* pmd)
         pixmapData->gl_surface = 0;
     }
 }
+
+void QMeeGoLivePixmapData::invalidateSurfaces()
+{
+    foreach (QMeeGoLivePixmapData *data, all_live_pixmaps) {
+        QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(data->backingX11Pixmap->data_ptr().data());
+        *data->texture() = QGLTexture();
+        pixmapData->gl_surface = 0;
+    }
+}
diff --git a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h
index 484028e..616b33c 100644
--- a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h
+++ b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h
@@ -42,9 +42,13 @@
 #ifndef MLIVEPIXMAPDATA_H
 #define MLIVEPIXMAPDATA_H
 
+#include <QLinkedList>
 #include <private/qpixmapdata_gl_p.h>
 #include "qmeegoextensions.h"
 
+class QMeeGoLivePixmapData;
+typedef QLinkedList<QMeeGoLivePixmapData *> QMeeGoLivePixmapDataList;
+
 class QMeeGoLivePixmapData : public QGLPixmapData
 {
 public:
@@ -66,6 +70,9 @@ public:
 
     QPixmap *backingX11Pixmap;
     QImage lockedImage;
+    QMeeGoLivePixmapDataList::Iterator pos;
+
+    static void invalidateSurfaces();
 };
 
 #endif
diff --git a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp
index 0c107b5..1da58e1 100644
--- a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp
+++ b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp
@@ -42,6 +42,7 @@
 #include "qgraphicssystem_vg_p.h"
 #include <QtOpenVG/private/qpixmapdata_vg_p.h>
 #include <QtOpenVG/private/qwindowsurface_vg_p.h>
+#include <QtOpenVG/private/qvgimagepool_p.h>
 #if defined(Q_OS_SYMBIAN) && !defined(Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE)
 #include <QtGui/private/qwidget_p.h>
 #endif
@@ -77,4 +78,9 @@ QWindowSurface *QVGGraphicsSystem::createWindowSurface(QWidget *widget) const
     return new QVGWindowSurface(widget);
 }
 
+void QVGGraphicsSystem::releaseCachedResources()
+{
+    QVGImagePool::instance()->hibernate();
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h
index d1bce28..9c9b3e2 100644
--- a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h
+++ b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h
@@ -64,6 +64,8 @@ public:
 
     QPixmapData *createPixmapData(QPixmapData::PixelType type) const;
     QWindowSurface *createWindowSurface(QWidget *widget) const;
+
+    void releaseCachedResources();
 };
 
 QT_END_NAMESPACE