update to Qt 6.8.3

Fix mingw GCC compilation with explicit cast of function pointer to void*

README.md

@@ -1,10 +1,12 @@
-This repository provides a backport of the Qt 6.8.2 qtbase module, tailored for compatibility with Windows 7, 8 and 8.1. It contains patched source files from the qtbase module, along with some additional required files. To apply the backport, simply copy the contents of the src folder into your qtbase/src directory, replacing the existing files.
+This repository provides a backport of the Qt 6 qtbase module, tailored for compatibility with Windows 7, 8 and 8.1. It contains patched source files from the qtbase module, along with some additional required files. To apply the backport, simply copy the contents of the src folder into your qtbase/src directory, replacing the existing files.
+
+The most recent supported version is **6.8.3** however many older versions are supported as well (see **Older versions** section).
 
 This approach builds upon the methodology discussed in this forum [thread](https://forum.qt.io/topic/133002/qt-creator-6-0-1-and-qt-6-2-2-running-on-windows-7/60) but offers significant enhancements, including important fallbacks to the default Qt 6 behavior when running on newer versions of Windows.
 
 You can compile it yourself using your preferred compiler and build options or can use our [compile_win.pl](https://github.com/crystalidea/qt-build-tools/tree/master/6.8.1) build script, which utilizes Visual C++ 2022 and includes OpenSSL 3.0.13 statically linked. Alternatively, you can download our [prebuild Qt dlls](https://github.com/crystalidea/qt6windows7/releases), which also include the Qt Designer binary for demonstration purposes.
 
-**Qt 6.8.2 designer running on Windows 7**:
+**Qt 6.8.3 designer running on Windows 7**:
 
 ![Qt Designer](designer.png)
 
@@ -23,6 +25,7 @@ Many of other Qt 6 modules are known to work fine on Windows 7 without modificat
 
 ### Older versions:
 
+- [Qt 6.8.2](https://github.com/crystalidea/qt6windows7/releases/tag/v6.8.2)
 - [Qt 6.8.1](https://github.com/crystalidea/qt6windows7/releases/tag/v6.8.1)
 - [Qt 6.8.0](https://github.com/crystalidea/qt6windows7/releases/tag/v6.8.0)
 - [Qt 6.7.2](https://github.com/crystalidea/qt6windows7/releases/tag/v6.7.2)

qtbase/src/corelib/thread/qmutex.cpp

@@ -651,7 +651,7 @@ void QBasicMutex::lockInternal() QT_MUTEX_LOCK_NOEXCEPT
         }
         Q_ASSERT(d_ptr.loadRelaxed());
     } else {
-        lockInternal(-1);
+        lockInternal(QDeadlineTimer::Forever);
     }
 }
 

qtbase/src/gui/rhi/qrhid3d11.cpp

@@ -3609,6 +3609,7 @@ ID3D11UnorderedAccessView *QD3D11Texture::unorderedAccessViewForLevel(int level)
     } else if (is3D) {
         desc.ViewDimension = D3D11_UAV_DIMENSION_TEXTURE3D;
         desc.Texture3D.MipSlice = UINT(level);
+        desc.Texture3D.WSize = UINT(m_depth);
     } else {
         desc.ViewDimension = D3D11_UAV_DIMENSION_TEXTURE2D;
         desc.Texture2D.MipSlice = UINT(level);

qtbase/src/gui/rhi/qrhid3d12.cpp

@@ -1006,6 +1006,7 @@ void QD3D12CommandBuffer::visitStorageImage(QD3D12Stage s,
     } else if (is3D) {
         uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE3D;
         uavDesc.Texture3D.MipSlice = UINT(d.level);
+        uavDesc.Texture3D.WSize = UINT(-1);
     } else {
         uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE2D;
         uavDesc.Texture2D.MipSlice = UINT(d.level);
@@ -3659,7 +3660,7 @@ void QRhiD3D12::finishActiveReadbacks(bool forced)
             if (readback.result->completed)
                 completedCallbacks.append(readback.result->completed);
 
-            activeReadbacks.removeLast();
+            activeReadbacks.remove(i);
         }
     }
 

qtbase/src/plugins/platforms/windows/qwin10helpers.cpp

@@ -71,7 +71,7 @@ void * WIN_LoadComBaseFunction(const char *name)
        s_bLoaded = true;
     }
     if (s_hComBase) {
-        return ::GetProcAddress(s_hComBase, name);
+        return (void *) ::GetProcAddress(s_hComBase, name);
     } else {
         return NULL;
     }

qtbase/src/plugins/platforms/windows/qwindowsintegration.cpp

@@ -105,7 +105,7 @@ struct QWindowsIntegrationPrivate
 #if QT_CONFIG(accessibility)
    QWindowsUiaAccessibility m_accessibility;
 #endif
-    QWindowsServices m_services;
+    mutable QScopedPointer<QWindowsServices> m_services;
 };
 
 template <typename IntType>
@@ -606,7 +606,10 @@ QPlatformTheme *QWindowsIntegration::createPlatformTheme(const QString &name) co
 
 QPlatformServices *QWindowsIntegration::services() const
 {
-    return &d->m_services;
+    if (d->m_services.isNull())
+        d->m_services.reset(new QWindowsServices);
+
+    return d->m_services.data();
 }
 
 void QWindowsIntegration::beep() const

qtbase/src/plugins/platforms/windows/qwindowstheme.cpp

@@ -306,6 +306,7 @@ void QWindowsTheme::populateLightSystemBasePalette(QPalette &result)
     const QColor background = getSysColor(COLOR_BTNFACE);
     const QColor textColor = getSysColor(COLOR_WINDOWTEXT);
 
+    const QColor accent = qt_accentColor(AccentColorNormal);
     const QColor accentDark = qt_accentColor(AccentColorDark);
     const QColor accentDarker = qt_accentColor(AccentColorDarker);
     const QColor accentDarkest = qt_accentColor(AccentColorDarkest);
@@ -314,7 +315,7 @@ void QWindowsTheme::populateLightSystemBasePalette(QPalette &result)
     const QColor btnFace = background;
     const QColor btnHighlight = getSysColor(COLOR_BTNHIGHLIGHT);
 
-    result.setColor(QPalette::Highlight, getSysColor(COLOR_HIGHLIGHT));
+    result.setColor(QPalette::Highlight, accent);
     result.setColor(QPalette::WindowText, getSysColor(COLOR_WINDOWTEXT));
     result.setColor(QPalette::Button, btnFace);
     result.setColor(QPalette::Light, btnHighlight);

qtbase/src/widgets/styles/qwindowsstyle.cpp

@@ -798,7 +798,7 @@ void QWindowsStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt,
     case PE_FrameFocusRect:
         if (const QStyleOptionFocusRect *fropt = qstyleoption_cast<const QStyleOptionFocusRect *>(opt)) {
             //### check for d->alt_down
-            if (!(fropt->state & State_KeyboardFocusChange) && !proxy()->styleHint(SH_UnderlineShortcut, opt))
+            if (!(fropt->state & State_KeyboardFocusChange) && !proxy()->styleHint(SH_UnderlineShortcut, opt, w))
                 return;
             QRect r = opt->rect;
             p->save();