Optimize multiple series rendering.

Cache all series instead of just the visible ones on all graphs
instead of just surface.
Changes to one series now trigger data update to only the affected
series, which should significantly improve performance in these
cases.

Task-number: QTRD-2600
Task-number: QTRD-2957

Change-Id: I6db7c689108fce8d25aace6682a193936d6f0eaf
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/surfacetest/graphmodifier.cpp b/tests/surfacetest/graphmodifier.cpp
index e1fed76a..c87eb2fc 100644
--- a/tests/surfacetest/graphmodifier.cpp
+++ b/tests/surfacetest/graphmodifier.cpp
@@ -1093,6 +1093,44 @@ void GraphModifier::removeRow()
     m_zCount--;
 }
 
+void GraphModifier::resetArray()
+{
+    qDebug() << "Reset series data array";
+    int rows = 10;
+    int columns = 10;
+    float randFactor = float(rand() % 100) / 100.0f;
+    QSurfaceDataArray *planeArray = new QSurfaceDataArray;
+    planeArray->reserve(rows);
+
+    for (int i = 0; i < rows; i++) {
+        planeArray->append(new QSurfaceDataRow);
+        (*planeArray)[i]->resize(columns);
+        for (int j = 0; j < columns; j++) {
+            (*planeArray->at(i))[j].setX(float(j) * randFactor);
+            (*planeArray->at(i))[j].setY(float(i - j) * randFactor);
+            (*planeArray->at(i))[j].setZ(float(i));
+        }
+    }
+
+#ifdef MULTI_SERIES
+    int series = rand() % 4;
+    m_multiseries[series]->dataProxy()->resetArray(planeArray);
+#else
+    m_theSeries->dataProxy()->resetArray(planeArray);
+#endif
+}
+
+void GraphModifier::resetArrayEmpty()
+{
+    QSurfaceDataArray *emptryArray = new QSurfaceDataArray;
+#ifdef MULTI_SERIES
+    int series = rand() % 4;
+    m_multiseries[series]->dataProxy()->resetArray(emptryArray);
+#else
+    m_theSeries->dataProxy()->resetArray(emptryArray);
+#endif
+}
+
 void GraphModifier::changeMesh()
 {
     static int model = 0;