Merge remote-tracking branch 'origin/dev' into wip/qt6

Change-Id: Ieb8efee9d74229b9f141ec715e3a9557586b51e8

17 files changed, 156 insertions, 24 deletions

diff --git a/src/gui/kernel/qinputdevicemanager.cpp b/src/gui/kernel/qinputdevicemanager.cpp
index 6e4e5a9c93..11442407e1 100644
--- a/src/gui/kernel/qinputdevicemanager.cpp
+++ b/src/gui/kernel/qinputdevicemanager.cpp
@@ -75,13 +75,13 @@ int QInputDeviceManager::deviceCount(DeviceType type) const
 
 int QInputDeviceManagerPrivate::deviceCount(QInputDeviceManager::DeviceType type) const
 {
-    return m_deviceCount.value(type);
+    return m_deviceCount[type];
 }
 
 void QInputDeviceManagerPrivate::setDeviceCount(QInputDeviceManager::DeviceType type, int count)
 {
     Q_Q(QInputDeviceManager);
-    if (m_deviceCount.value(type) != count) {
+    if (m_deviceCount[type] != count) {
         m_deviceCount[type] = count;
         emit q->deviceListChanged(type);
     }
diff --git a/src/gui/kernel/qinputdevicemanager_p.h b/src/gui/kernel/qinputdevicemanager_p.h
index 74494d712b..1d20b102e3 100644
--- a/src/gui/kernel/qinputdevicemanager_p.h
+++ b/src/gui/kernel/qinputdevicemanager_p.h
@@ -69,7 +69,9 @@ public:
         DeviceTypePointer,
         DeviceTypeKeyboard,
         DeviceTypeTouch,
-        DeviceTypeTablet
+        DeviceTypeTablet,
+
+        NumDeviceTypes
     };
 
     QInputDeviceManager(QObject *parent = nullptr);
diff --git a/src/gui/kernel/qinputdevicemanager_p_p.h b/src/gui/kernel/qinputdevicemanager_p_p.h
index 0a91252fbc..871f9315c3 100644
--- a/src/gui/kernel/qinputdevicemanager_p_p.h
+++ b/src/gui/kernel/qinputdevicemanager_p_p.h
@@ -52,10 +52,11 @@
 //
 
 #include <QtGui/private/qtguiglobal_p.h>
-#include <QtCore/qmap.h>
 #include <private/qobject_p.h>
 #include "qinputdevicemanager_p.h"
 
+#include <array>
+
 QT_BEGIN_NAMESPACE
 
 class Q_GUI_EXPORT QInputDeviceManagerPrivate : public QObjectPrivate
@@ -68,7 +69,7 @@ public:
     int deviceCount(QInputDeviceManager::DeviceType type) const;
     void setDeviceCount(QInputDeviceManager::DeviceType type, int count);
 
-    QMap<QInputDeviceManager::DeviceType, int> m_deviceCount;
+    std::array<int, QInputDeviceManager::NumDeviceTypes> m_deviceCount;
 
     Qt::KeyboardModifiers keyboardModifiers;
 };
diff --git a/src/gui/painting/qbrush.cpp b/src/gui/painting/qbrush.cpp
index 13d986073e..21e41979af 100644
--- a/src/gui/painting/qbrush.cpp
+++ b/src/gui/painting/qbrush.cpp
@@ -1385,16 +1385,16 @@ QGradient::QGradient(Preset preset)
         setCoordinateMode(ObjectMode);
         setSpread(PadSpread);
 
-        const QJsonValue start = presetData[QLatin1Literal("start")];
-        const QJsonValue end = presetData[QLatin1Literal("end")];
-        m_data.linear.x1 = start[QLatin1Literal("x")].toDouble();
-        m_data.linear.y1 = start[QLatin1Literal("y")].toDouble();
-        m_data.linear.x2 = end[QLatin1Literal("x")].toDouble();
-        m_data.linear.y2 = end[QLatin1Literal("y")].toDouble();
+        const QJsonValue start = presetData[QLatin1String("start")];
+        const QJsonValue end = presetData[QLatin1String("end")];
+        m_data.linear.x1 = start[QLatin1String("x")].toDouble();
+        m_data.linear.y1 = start[QLatin1String("y")].toDouble();
+        m_data.linear.x2 = end[QLatin1String("x")].toDouble();
+        m_data.linear.y2 = end[QLatin1String("y")].toDouble();
 
         for (const QJsonValue &stop : presetData[QLatin1String("stops")].toArray()) {
-            setColorAt(stop[QLatin1Literal("position")].toDouble(),
-                QColor(QRgb(stop[QLatin1Literal("color")].toInt())));
+            setColorAt(stop[QLatin1String("position")].toDouble(),
+                QColor(QRgb(stop[QLatin1String("color")].toInt())));
         }
 
         cachedPresets.insert(preset, *this);
diff --git a/src/gui/text/qdistancefield.cpp b/src/gui/text/qdistancefield.cpp
index 82bb617733..5967c8d3de 100644
--- a/src/gui/text/qdistancefield.cpp
+++ b/src/gui/text/qdistancefield.cpp
@@ -904,6 +904,9 @@ QDistanceField::QDistanceField(const QDistanceField &other)
     d = other.d;
 }
 
+QDistanceField &QDistanceField::operator=(const QDistanceField &)
+    = default;
+
 QDistanceField::QDistanceField(const QRawFont &font, glyph_t glyph, bool doubleResolution)
 {
     setGlyph(font, glyph, doubleResolution);
diff --git a/src/gui/text/qdistancefield_p.h b/src/gui/text/qdistancefield_p.h
index 1a1b6866a2..dc5d5a9a02 100644
--- a/src/gui/text/qdistancefield_p.h
+++ b/src/gui/text/qdistancefield_p.h
@@ -95,6 +95,7 @@ public:
     QDistanceField(QFontEngine *fontEngine, glyph_t glyph, bool doubleResolution = false);
     QDistanceField(const QPainterPath &path, glyph_t glyph, bool doubleResolution = false);
     QDistanceField(const QDistanceField &other);
+    QDistanceField &operator=(const QDistanceField &other);
 
     bool isNull() const;
 
diff --git a/src/gui/text/qtextformat.cpp b/src/gui/text/qtextformat.cpp
index 644dd5558d..090c6cc4ce 100644
--- a/src/gui/text/qtextformat.cpp
+++ b/src/gui/text/qtextformat.cpp
@@ -564,6 +564,9 @@ Q_GUI_EXPORT QDataStream &operator>>(QDataStream &stream, QTextFormat &fmt)
     \value BlockTrailingHorizontalRulerWidth The width of a horizontal ruler element.
     \value HeadingLevel     The level of a heading, for example 1 corresponds to an HTML H1 tag; otherwise 0.
                             This enum value has been added in Qt 5.12.
+    \value BlockCodeFence   The character that was used in the "fences" around a Markdown code block.
+                            If the code block was indented rather than fenced, the block should not have this property.
+                            This enum value has been added in Qt 5.14.
 
     \value BlockQuoteLevel  The depth of nested quoting on this block: 1 means the block is a top-level block quote.
                             Blocks that are not block quotes should not have this property.
diff --git a/src/gui/text/qtextformat.h b/src/gui/text/qtextformat.h
index 4f534fb65d..a91461dcae 100644
--- a/src/gui/text/qtextformat.h
+++ b/src/gui/text/qtextformat.h
@@ -178,6 +178,7 @@ public:
         HeadingLevel = 0x1070,
         BlockQuoteLevel = 0x1080,
         BlockCodeLanguage = 0x1090,
+        BlockCodeFence = 0x1091,
         BlockMarker = 0x10A0,
 
         // character properties
diff --git a/src/gui/text/qtexthtmlparser.cpp b/src/gui/text/qtexthtmlparser.cpp
index 49ee6394ee..642f0893b4 100644
--- a/src/gui/text/qtexthtmlparser.cpp
+++ b/src/gui/text/qtexthtmlparser.cpp
@@ -1635,6 +1635,10 @@ void QTextHtmlParser::applyAttributes(const QStringList &attributes)
                 else if (key == QLatin1String("type"))
                     linkType = value;
                 break;
+            case Html_pre:
+                if (key == QLatin1String("class") && value.startsWith(QLatin1String("language-")))
+                    node->blockFormat.setProperty(QTextFormat::BlockCodeLanguage, value.mid(9));
+                break;
             default:
                 break;
         }
diff --git a/src/gui/text/qtextmarkdownimporter.cpp b/src/gui/text/qtextmarkdownimporter.cpp
index 223eb01e55..8a9bb3953c 100644
--- a/src/gui/text/qtextmarkdownimporter.cpp
+++ b/src/gui/text/qtextmarkdownimporter.cpp
@@ -165,12 +165,13 @@ int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
         MD_BLOCK_CODE_DETAIL *detail = static_cast<MD_BLOCK_CODE_DETAIL *>(det);
         m_codeBlock = true;
         m_blockCodeLanguage = QLatin1String(detail->lang.text, int(detail->lang.size));
+        m_blockCodeFence = detail->fence_char;
         QString info = QLatin1String(detail->info.text, int(detail->info.size));
         m_needsInsertBlock = true;
         if (m_blockQuoteDepth)
-            qCDebug(lcMD, "CODE lang '%s' info '%s' inside QUOTE %d", qPrintable(m_blockCodeLanguage), qPrintable(info), m_blockQuoteDepth);
+            qCDebug(lcMD, "CODE lang '%s' info '%s' fenced with '%c' inside QUOTE %d", qPrintable(m_blockCodeLanguage), qPrintable(info), m_blockCodeFence, m_blockQuoteDepth);
         else
-            qCDebug(lcMD, "CODE lang '%s' info '%s'", qPrintable(m_blockCodeLanguage), qPrintable(info));
+            qCDebug(lcMD, "CODE lang '%s' info '%s' fenced with '%c'", qPrintable(m_blockCodeLanguage), qPrintable(info), m_blockCodeFence);
     } break;
     case MD_BLOCK_H: {
         MD_BLOCK_H_DETAIL *detail = static_cast<MD_BLOCK_H_DETAIL *>(det);
@@ -326,6 +327,7 @@ int QTextMarkdownImporter::cbLeaveBlock(int blockType, void *detail)
     case MD_BLOCK_CODE: {
         m_codeBlock = false;
         m_blockCodeLanguage.clear();
+        m_blockCodeFence = 0;
         if (m_blockQuoteDepth)
             qCDebug(lcMD, "CODE ended inside QUOTE %d", m_blockQuoteDepth);
         else
@@ -540,6 +542,8 @@ void QTextMarkdownImporter::insertBlock()
     }
     if (m_codeBlock) {
         blockFormat.setProperty(QTextFormat::BlockCodeLanguage, m_blockCodeLanguage);
+        if (m_blockCodeFence)
+            blockFormat.setProperty(QTextFormat::BlockCodeFence, QString(QLatin1Char(m_blockCodeFence)));
         charFormat.setFont(m_monoFont);
     } else {
         blockFormat.setTopMargin(m_paragraphMargin);
diff --git a/src/gui/text/qtextmarkdownimporter_p.h b/src/gui/text/qtextmarkdownimporter_p.h
index fdce74483b..1b8c2ca354 100644
--- a/src/gui/text/qtextmarkdownimporter_p.h
+++ b/src/gui/text/qtextmarkdownimporter_p.h
@@ -124,6 +124,7 @@ private:
     int m_tableCol = -1; // because relative cell movements (e.g. m_cursor->movePosition(QTextCursor::NextCell)) don't work
     int m_paragraphMargin = 0;
     int m_blockType = 0;
+    char m_blockCodeFence = 0;
     Features m_features;
     QTextImageFormat m_imageFormat;
     QTextListFormat m_listFormat;
diff --git a/src/gui/text/qtextmarkdownwriter.cpp b/src/gui/text/qtextmarkdownwriter.cpp
index 58e0c86b95..f351c8d20b 100644
--- a/src/gui/text/qtextmarkdownwriter.cpp
+++ b/src/gui/text/qtextmarkdownwriter.cpp
@@ -134,6 +134,24 @@ void QTextMarkdownWriter::writeFrame(const QTextFrame *frame)
             writeFrame(iterator.currentFrame());
         else { // no frame, it's a block
             QTextBlock block = iterator.currentBlock();
+            // Look ahead and detect some cases when we should
+            // suppress needless blank lines, when there will be a big change in block format
+            bool nextIsDifferent = false;
+            bool ending = false;
+            {
+                QTextFrame::iterator next = iterator;
+                ++next;
+                if (next.atEnd()) {
+                    nextIsDifferent = true;
+                    ending = true;
+                } else {
+                    QTextBlockFormat format = iterator.currentBlock().blockFormat();
+                    QTextBlockFormat nextFormat = next.currentBlock().blockFormat();
+                    if (nextFormat.indent() != format.indent() ||
+                            nextFormat.property(QTextFormat::BlockCodeLanguage) != format.property(QTextFormat::BlockCodeLanguage))
+                        nextIsDifferent = true;
+                }
+            }
             if (table) {
                 QTextTableCell cell = table->cellAt(block.position());
                 if (tableRow < cell.row()) {
@@ -150,7 +168,7 @@ void QTextMarkdownWriter::writeFrame(const QTextFrame *frame)
                 if (lastWasList)
                     m_stream << Newline;
             }
-            int endingCol = writeBlock(block, !table, table && tableRow == 0);
+            int endingCol = writeBlock(block, !table, table && tableRow == 0, nextIsDifferent);
             m_doubleNewlineWritten = false;
             if (table) {
                 QTextTableCell cell = table->cellAt(block.position());
@@ -162,11 +180,19 @@ void QTextMarkdownWriter::writeFrame(const QTextFrame *frame)
                     m_stream << QString(paddingLen, Space);
                 for (int col = cell.column(); col < spanEndCol; ++col)
                     m_stream << "|";
-            } else if (block.textList() || block.blockFormat().hasProperty(QTextFormat::BlockCodeLanguage)) {
+            } else if (m_fencedCodeBlock && ending) {
+                m_stream << m_linePrefix << QString(m_wrappedLineIndent, Space)
+                         << m_codeBlockFence << Newline << Newline;
+                m_codeBlockFence.clear();
+            } else if (m_indentedCodeBlock && nextIsDifferent) {
                 m_stream << Newline;
             } else if (endingCol > 0) {
-                m_stream << Newline << Newline;
-                m_doubleNewlineWritten = true;
+                if (block.textList() || block.blockFormat().hasProperty(QTextFormat::BlockCodeLanguage)) {
+                    m_stream << Newline;
+                } else {
+                    m_stream << Newline << Newline;
+                    m_doubleNewlineWritten = true;
+                }
             }
             lastWasList = block.textList();
         }
@@ -259,11 +285,13 @@ static void maybeEscapeFirstChar(QString &s)
     }
 }
 
-int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ignoreFormat)
+int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ignoreFormat, bool ignoreEmpty)
 {
+    if (block.text().isEmpty() && ignoreEmpty)
+        return 0;
     const int ColumnLimit = 80;
     QTextBlockFormat blockFmt = block.blockFormat();
-    bool indentedCodeBlock = false;
+    bool missedBlankCodeBlockLine = false;
     if (block.textList()) { // it's a list-item
         auto fmt = block.textList()->format();
         const int listLevel = fmt.indent();
@@ -324,7 +352,28 @@ int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ign
     } else if (blockFmt.hasProperty(QTextFormat::BlockTrailingHorizontalRulerWidth)) {
         m_stream << "- - -\n"; // unambiguous horizontal rule, not an underline under a heading
         return 0;
+    } else if (blockFmt.hasProperty(QTextFormat::BlockCodeFence) || blockFmt.stringProperty(QTextFormat::BlockCodeLanguage).length() > 0) {
+        // It's important to preserve blank lines in code blocks.  But blank lines in code blocks
+        // inside block quotes are getting preserved anyway (along with the "> " prefix).
+        if (!blockFmt.hasProperty(QTextFormat::BlockQuoteLevel))
+            missedBlankCodeBlockLine = true; // only if we don't get any fragments below
+        if (!m_fencedCodeBlock) {
+            QString fenceChar = blockFmt.stringProperty(QTextFormat::BlockCodeFence);
+            if (fenceChar.isEmpty())
+                fenceChar = QLatin1String("`");
+            m_codeBlockFence = QString(3, fenceChar.at(0));
+            // A block quote can contain an indented code block, but not vice-versa.
+            m_stream << m_linePrefix << QString(m_wrappedLineIndent, Space) << m_codeBlockFence
+                     << Space << blockFmt.stringProperty(QTextFormat::BlockCodeLanguage) << Newline;
+            m_fencedCodeBlock = true;
+        }
     } else if (!blockFmt.indent()) {
+        if (m_fencedCodeBlock) {
+            m_stream << m_linePrefix << QString(m_wrappedLineIndent, Space)
+                     << m_codeBlockFence << Newline;
+            m_fencedCodeBlock = false;
+            m_codeBlockFence.clear();
+        }
         m_wrappedLineIndent = 0;
         m_linePrefix.clear();
         if (blockFmt.hasProperty(QTextFormat::BlockQuoteLevel)) {
@@ -337,7 +386,7 @@ int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ign
         if (blockFmt.hasProperty(QTextFormat::BlockCodeLanguage)) {
             // A block quote can contain an indented code block, but not vice-versa.
             m_linePrefix += QString(4, Space);
-            indentedCodeBlock = true;
+            m_indentedCodeBlock = true;
         }
     }
     if (blockFmt.headingLevel())
@@ -358,6 +407,7 @@ int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ign
     bool strikeOut = false;
     QString backticks(Backtick);
     for (QTextBlock::Iterator frag = block.begin(); !frag.atEnd(); ++frag) {
+        missedBlankCodeBlockLine = false;
         QString fragmentText = frag.fragment().text();
         while (fragmentText.endsWith(Newline))
             fragmentText.chop(1);
@@ -401,7 +451,7 @@ int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ign
             bool monoFrag = fontInfo.fixedPitch();
             QString markers;
             if (!ignoreFormat) {
-                if (monoFrag != mono && !indentedCodeBlock) {
+                if (monoFrag != mono && !m_indentedCodeBlock && !m_fencedCodeBlock) {
                     if (monoFrag)
                         backticks = QString(adjacentBackticksCount(fragmentText) + 1, Backtick);
                     markers += backticks;
@@ -501,6 +551,8 @@ int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ign
         m_stream << "~~";
         col += 2;
     }
+    if (missedBlankCodeBlockLine)
+        m_stream << Newline;
     return col;
 }
 
diff --git a/src/gui/text/qtextmarkdownwriter_p.h b/src/gui/text/qtextmarkdownwriter_p.h
index 96ceb445cd..90310250ac 100644
--- a/src/gui/text/qtextmarkdownwriter_p.h
+++ b/src/gui/text/qtextmarkdownwriter_p.h
@@ -67,7 +67,7 @@ public:
     bool writeAll(const QTextDocument *document);
     void writeTable(const QAbstractItemModel *table);
 
-    int writeBlock(const QTextBlock &block, bool table, bool ignoreFormat);
+    int writeBlock(const QTextBlock &block, bool table, bool ignoreFormat, bool ignoreEmpty);
     void writeFrame(const QTextFrame *frame);
 
 private:
@@ -82,9 +82,12 @@ private:
     QTextDocument::MarkdownFeatures m_features;
     QMap<QTextList *, ListInfo> m_listInfo;
     QString m_linePrefix;
+    QString m_codeBlockFence;
     int m_wrappedLineIndent = 0;
     int m_lastListIndent = 1;
     bool m_doubleNewlineWritten = false;
+    bool m_indentedCodeBlock = false;
+    bool m_fencedCodeBlock = false;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/vulkan/qplatformvulkaninstance.cpp b/src/gui/vulkan/qplatformvulkaninstance.cpp
index 6201d3ec11..9d044bfd58 100644
--- a/src/gui/vulkan/qplatformvulkaninstance.cpp
+++ b/src/gui/vulkan/qplatformvulkaninstance.cpp
@@ -85,4 +85,9 @@ void QPlatformVulkanInstance::presentQueued(QWindow *window)
     Q_UNUSED(window);
 }
 
+void QPlatformVulkanInstance::setDebugFilters(const QVector<QVulkanInstance::DebugFilter> &filters)
+{
+    Q_UNUSED(filters);
+}
+
 QT_END_NAMESPACE
diff --git a/src/gui/vulkan/qplatformvulkaninstance.h b/src/gui/vulkan/qplatformvulkaninstance.h
index 9f34803f7b..d47c59b5db 100644
--- a/src/gui/vulkan/qplatformvulkaninstance.h
+++ b/src/gui/vulkan/qplatformvulkaninstance.h
@@ -78,6 +78,7 @@ public:
     virtual PFN_vkVoidFunction getInstanceProcAddr(const char *name) = 0;
     virtual bool supportsPresent(VkPhysicalDevice physicalDevice, uint32_t queueFamilyIndex, QWindow *window) = 0;
     virtual void presentQueued(QWindow *window);
+    virtual void setDebugFilters(const QVector<QVulkanInstance::DebugFilter> &filters);
 
 private:
     QScopedPointer<QPlatformVulkanInstancePrivate> d_ptr;
diff --git a/src/gui/vulkan/qvulkaninstance.cpp b/src/gui/vulkan/qvulkaninstance.cpp
index 2941bfd01f..0605d88cca 100644
--- a/src/gui/vulkan/qvulkaninstance.cpp
+++ b/src/gui/vulkan/qvulkaninstance.cpp
@@ -269,6 +269,7 @@ public:
     VkResult errorCode;
     QScopedPointer<QVulkanFunctions> funcs;
     QHash<VkDevice, QVulkanDeviceFunctions *> deviceFuncs;
+    QVector<QVulkanInstance::DebugFilter> debugFilters;
 };
 
 bool QVulkanInstancePrivate::ensureVulkan()
@@ -570,6 +571,7 @@ bool QVulkanInstance::create()
         d_ptr->extensions = d_ptr->platformInst->enabledExtensions();
         d_ptr->errorCode = VK_SUCCESS;
         d_ptr->funcs.reset(new QVulkanFunctions(this));
+        d_ptr->platformInst->setDebugFilters(d_ptr->debugFilters);
         return true;
     }
 
@@ -785,6 +787,50 @@ void QVulkanInstance::presentQueued(QWindow *window)
     d_ptr->platformInst->presentQueued(window);
 }
 
+/*!
+    \typedef QVulkanInstance::DebugFilter
+
+    Typedef for debug filtering callback functions.
+
+    \sa installDebugOutputFilter(), removeDebugOutputFilter()
+ */
+
+/*!
+    Installs a \a filter function that is called for every Vulkan debug
+    message. When the callback returns \c true, the message is stopped (filtered
+    out) and will not appear on the debug output.
+
+    \note Filtering is only effective when NoDebugOutputRedirect is not
+    \l{setFlags()}{set}. Installing filters has no effect otherwise.
+
+    \note This function can be called before create().
+
+    \sa removeDebugOutputFilter()
+ */
+void QVulkanInstance::installDebugOutputFilter(DebugFilter filter)
+{
+    if (!d_ptr->debugFilters.contains(filter)) {
+        d_ptr->debugFilters.append(filter);
+        if (d_ptr->platformInst)
+            d_ptr->platformInst->setDebugFilters(d_ptr->debugFilters);
+    }
+}
+
+/*!
+    Removes a \a filter function previously installed by
+    installDebugOutputFilter().
+
+    \note This function can be called before create().
+
+    \sa installDebugOutputFilter()
+ */
+void QVulkanInstance::removeDebugOutputFilter(DebugFilter filter)
+{
+    d_ptr->debugFilters.removeOne(filter);
+    if (d_ptr->platformInst)
+        d_ptr->platformInst->setDebugFilters(d_ptr->debugFilters);
+}
+
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QVulkanLayer &layer)
 {
diff --git a/src/gui/vulkan/qvulkaninstance.h b/src/gui/vulkan/qvulkaninstance.h
index f28975f911..70f2fd5102 100644
--- a/src/gui/vulkan/qvulkaninstance.h
+++ b/src/gui/vulkan/qvulkaninstance.h
@@ -188,6 +188,11 @@ public:
 
     void presentQueued(QWindow *window);
 
+    typedef bool (*DebugFilter)(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object,
+                                size_t location, int32_t messageCode, const char *pLayerPrefix, const char *pMessage);
+    void installDebugOutputFilter(DebugFilter filter);
+    void removeDebugOutputFilter(DebugFilter filter);
+
 private:
     QScopedPointer<QVulkanInstancePrivate> d_ptr;
     Q_DISABLE_COPY(QVulkanInstance)