1 files changed, 23 insertions, 1 deletions
diff --git a/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h b/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h
index 379c0ee00e..c38c483df4 100644
--- a/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h
+++ b/src/quick/scenegraph/coreapi/qsgbatchrenderer_p.h
@@ -371,7 +371,7 @@ public:
         float lastOpacity;
     };
 
-    ShaderManager() : blitProgram(0) { }
+    ShaderManager() : blitProgram(0), visualizeProgram(0) { }
     ~ShaderManager() {
         qDeleteAll(rewrittenShaders.values());
         qDeleteAll(stockShaders.values());
@@ -388,6 +388,7 @@ public:
     QHash<QSGMaterialType *, Shader *> stockShaders;
 
     QOpenGLShaderProgram *blitProgram;
+    QOpenGLShaderProgram *visualizeProgram;
 };
 
 class Q_QUICK_PRIVATE_EXPORT Renderer : public QSGRenderer
@@ -396,6 +397,14 @@ public:
     Renderer(QSGRenderContext *);
     ~Renderer();
 
+    enum VisualizeMode {
+        VisualizeNothing,
+        VisualizeBatches,
+        VisualizeClipping,
+        VisualizeChanges,
+        VisualizeOverdraw
+    };
+
 protected:
     void nodeChanged(QSGNode *node, QSGNode::DirtyState state);
     void preprocess() Q_DECL_OVERRIDE;
@@ -451,6 +460,16 @@ private:
     inline Batch *newBatch();
     void invalidateAndRecycleBatch(Batch *b);
 
+    void visualize();
+    void visualizeBatch(Batch *b);
+    void visualizeClipping(QSGNode *node);
+    void visualizeChangesPrepare(Node *n, uint parentChanges = 0);
+    void visualizeChanges(Node *n);
+    void visualizeOverdraw();
+    void visualizeOverdraw_helper(Node *node);
+    void visualizeDrawGeometry(const QSGGeometry *g);
+    void setCustomRenderMode(const QByteArray &mode);
+
     QSet<Node *> m_taggedRoots;
     QDataBuffer<Element *> m_opaqueRenderList;
     QDataBuffer<Element *> m_alphaRenderList;
@@ -487,6 +506,9 @@ private:
 
     // For minimal OpenGL core profile support
     QOpenGLVertexArrayObject *m_vao;
+
+    QHash<Node *, uint> m_visualizeChanceSet;
+    VisualizeMode m_visualizeMode;
 };
 
 Batch *Renderer::newBatch()