forked from qt-creator/qt-creator
QMLProfiler: Use scene graph for painting events in timeline
By using the scene graph we can retain the geometry for events in the timeline on the GPU and potentially speed up the rendering for large amounts of items. Change-Id: I2cfbb8ef4ebc7b56f1977ec1facb4f2e7f2002ee Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
This commit is contained in:
Ulf Hermann
457
src/plugins/qmlprofiler/timelineitemsrenderpass.cpp
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457
src/plugins/qmlprofiler/timelineitemsrenderpass.cpp
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@@ -0,0 +1,457 @@
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://www.qt.io/licensing. For further information
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** use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "timelineitemsrenderpass.h"
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#include "timelinerenderstate.h"
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#include <QSGSimpleRectNode>
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#include <QSGVertexColorMaterial>
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#include <QtAlgorithms>
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namespace QmlProfiler {
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namespace Internal {
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class TimelineItemsMaterial : public QSGMaterial {
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public:
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TimelineItemsMaterial();
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QVector2D scale() const;
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void setScale(QVector2D scale);
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float selectedItem() const;
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void setSelectedItem(float selectedItem);
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QColor selectionColor() const;
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void setSelectionColor(QColor selectionColor);
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QSGMaterialType *type() const;
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QSGMaterialShader *createShader() const;
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private:
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QVector2D m_scale;
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float m_selectedItem;
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QColor m_selectionColor;
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};
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struct TimelineItemsRenderPassState : public TimelineRenderPass::State {
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TimelineItemsRenderPassState() : indexFrom(std::numeric_limits<int>::max()), indexTo(-1) {}
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int indexFrom;
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int indexTo;
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TimelineItemsMaterial collapsedRowMaterial;
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};
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struct OpaqueColoredPoint2DWithSize {
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float x, y, w, h, id;
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unsigned char r, g, b, a;
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void set(float nx, float ny, float nw, float nh, float nid, uchar nr, uchar ng, uchar nb);
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};
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struct TimelineItemsGeometry {
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// Alternating nodes with with 7 and 4 vertices; and vertex indices are 16bit
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static const int maxEventsPerNode = 0xffff * 2 / (7 + 4);
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static const QSGGeometry::AttributeSet &opaqueColoredPoint2DWithSize();
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TimelineItemsGeometry() : allocatedVertices(0), usedVertices(0), currentY(0), node(0) {}
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uint allocatedVertices;
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uint usedVertices;
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float currentY;
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QSGGeometryNode *node;
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OpaqueColoredPoint2DWithSize *vertexData();
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void allocate(QSGMaterial *material);
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void addVertices(float itemTop);
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void addEvent(float itemLeft, float itemTop, float itemWidth, float selectionId, uchar red,
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uchar green, uchar blue);
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};
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void TimelineItemsGeometry::addEvent(float itemLeft, float itemTop, float itemWidth,
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float selectionId, uchar red, uchar green,
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uchar blue)
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{
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float rowHeight = TimelineModel::defaultRowHeight();
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float itemHeight = rowHeight - itemTop;
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OpaqueColoredPoint2DWithSize *v = vertexData();
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if (currentY == rowHeight) {
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// "Z" form, bottom to top
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v[usedVertices++].set(itemLeft, rowHeight, -itemWidth, -itemHeight, selectionId, red, green,
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blue);
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v[usedVertices++].set(itemLeft + itemWidth, rowHeight, itemWidth, -itemHeight, selectionId,
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red, green, blue);
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v[usedVertices++].set(itemLeft, itemTop, -itemWidth, itemHeight, selectionId, red, green,
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blue);
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v[usedVertices++].set(itemLeft + itemWidth, itemTop, itemWidth, itemHeight, selectionId,
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red, green, blue);
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currentY = itemTop;
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} else {
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if (currentY != itemTop) {
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// 3 extra vertices to degenerate the surplus triangles
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v[usedVertices++].set(itemLeft, currentY, -itemWidth, rowHeight - currentY, selectionId,
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red, green, blue);
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v[usedVertices++].set(itemLeft, currentY, -itemWidth, rowHeight - currentY, selectionId,
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red, green, blue);
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v[usedVertices++].set(itemLeft, itemTop, -itemWidth, itemHeight, selectionId, red,
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green, blue);
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}
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// "Z" form, top to bottom
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v[usedVertices++].set(itemLeft, itemTop, -itemWidth, itemHeight, selectionId, red, green,
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blue);
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v[usedVertices++].set(itemLeft + itemWidth, itemTop, itemWidth, itemHeight, selectionId,
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red, green, blue);
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v[usedVertices++].set(itemLeft, rowHeight, - itemWidth, -itemHeight, selectionId, red,
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green, blue);
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v[usedVertices++].set(itemLeft + itemWidth, rowHeight, itemWidth, -itemHeight, selectionId,
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red, green, blue);
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currentY = rowHeight;
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}
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}
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OpaqueColoredPoint2DWithSize *TimelineItemsGeometry::vertexData()
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{
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QSGGeometry *geometry = node->geometry();
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Q_ASSERT(geometry->attributeCount() == 4);
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Q_ASSERT(geometry->sizeOfVertex() == sizeof(OpaqueColoredPoint2DWithSize));
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const QSGGeometry::Attribute *attributes = geometry->attributes();
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Q_ASSERT(attributes[0].position == 0);
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Q_ASSERT(attributes[0].tupleSize == 2);
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Q_ASSERT(attributes[0].type == GL_FLOAT);
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Q_ASSERT(attributes[1].position == 1);
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Q_ASSERT(attributes[1].tupleSize == 2);
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Q_ASSERT(attributes[1].type == GL_FLOAT);
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Q_ASSERT(attributes[2].position == 2);
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Q_ASSERT(attributes[2].tupleSize == 1);
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Q_ASSERT(attributes[2].type == GL_FLOAT);
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Q_ASSERT(attributes[3].position == 3);
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Q_ASSERT(attributes[3].tupleSize == 4);
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Q_ASSERT(attributes[3].type == GL_UNSIGNED_BYTE);
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return static_cast<OpaqueColoredPoint2DWithSize *>(node->geometry()->vertexData());
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}
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void TimelineItemsGeometry::allocate(QSGMaterial *material)
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{
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QSGGeometry *geometry = new QSGGeometry(opaqueColoredPoint2DWithSize(), usedVertices);
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geometry->setIndexDataPattern(QSGGeometry::StaticPattern);
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geometry->setVertexDataPattern(QSGGeometry::StaticPattern);
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node = new QSGGeometryNode;
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node->setGeometry(geometry);
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node->setFlag(QSGNode::OwnsGeometry, true);
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node->setMaterial(material);
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allocatedVertices = usedVertices;
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usedVertices = 0;
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currentY = 0;
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}
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void TimelineItemsGeometry::addVertices(float itemTop)
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{
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if (currentY == TimelineModel::defaultRowHeight()) {
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usedVertices += 4;
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currentY = itemTop;
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} else {
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usedVertices += (currentY != itemTop ? 7 : 4);
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currentY = TimelineModel::defaultRowHeight();
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}
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}
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class TimelineExpandedRowNode : public QSGNode {
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public:
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TimelineItemsMaterial material;
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virtual ~TimelineExpandedRowNode() {}
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};
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static void updateNodes(int from, int to, const TimelineRenderer *renderer,
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const TimelineRenderState *parentState, TimelineItemsRenderPassState *state)
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{
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const TimelineModel *model = renderer->model();
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float defaultRowHeight = TimelineModel::defaultRowHeight();
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QVector<TimelineItemsGeometry> expandedPerRow(model->expandedRowCount());
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QVector<TimelineItemsGeometry> collapsedPerRow(model->collapsedRowCount());
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for (int i = from; i < to; ++i) {
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qint64 start = qMax(parentState->start(), model->startTime(i));
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qint64 end = qMin(parentState->end(), model->startTime(i) + model->duration(i));
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if (start > end)
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continue;
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float itemTop = (1.0 - model->relativeHeight(i)) * defaultRowHeight;
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expandedPerRow[model->expandedRow(i)].addVertices(itemTop);
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collapsedPerRow[model->collapsedRow(i)].addVertices(itemTop);
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}
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for (int i = 0; i < model->expandedRowCount(); ++i) {
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TimelineItemsGeometry &row = expandedPerRow[i];
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if (row.usedVertices > 0) {
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row.allocate(&static_cast<TimelineExpandedRowNode *>(state->expandedRows[i])->material);
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state->expandedRows[i]->appendChildNode(row.node);
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}
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}
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for (int i = 0; i < model->collapsedRowCount(); ++i) {
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TimelineItemsGeometry &row = collapsedPerRow[i];
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if (row.usedVertices > 0) {
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row.allocate(&state->collapsedRowMaterial);
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state->collapsedRows[i]->appendChildNode(row.node);
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}
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}
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for (int i = from; i < to; ++i) {
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qint64 start = qMax(parentState->start(), model->startTime(i));
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qint64 end = qMin(parentState->end(), model->startTime(i) + model->duration(i));
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if (start > end)
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continue;
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QColor color = model->color(i);
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uchar red = color.red();
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uchar green = color.green();
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uchar blue = color.blue();
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float itemWidth = (end - start) * parentState->scale();
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float itemLeft = (start - parentState->start()) * parentState->scale();
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// This has to be the exact same expression as above, to guarantee determinism.
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float itemTop = (1.0 - model->relativeHeight(i)) * defaultRowHeight;
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float selectionId = model->selectionId(i);
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expandedPerRow[model->expandedRow(i)].addEvent(itemLeft, itemTop, itemWidth, selectionId,
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red, green, blue);
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collapsedPerRow[model->collapsedRow(i)].addEvent(itemLeft, itemTop, itemWidth, selectionId,
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red, green, blue);
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}
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}
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const QSGGeometry::AttributeSet &TimelineItemsGeometry::opaqueColoredPoint2DWithSize()
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{
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static QSGGeometry::Attribute data[] = {
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QSGGeometry::Attribute::create(0, 2, GL_FLOAT, true),
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QSGGeometry::Attribute::create(1, 2, GL_FLOAT),
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QSGGeometry::Attribute::create(2, 1, GL_FLOAT),
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QSGGeometry::Attribute::create(3, 4, GL_UNSIGNED_BYTE)
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};
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static QSGGeometry::AttributeSet attrs = {
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4,
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sizeof(OpaqueColoredPoint2DWithSize),
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data
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};
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return attrs;
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}
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const TimelineItemsRenderPass *TimelineItemsRenderPass::instance()
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{
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static const TimelineItemsRenderPass pass;
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return &pass;
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}
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TimelineRenderPass::State *TimelineItemsRenderPass::update(const TimelineRenderer *renderer,
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const TimelineRenderState *parentState,
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State *oldState, int indexFrom,
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int indexTo, bool stateChanged,
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qreal spacing) const
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{
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Q_UNUSED(stateChanged);
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QColor selectionColor = (renderer->selectionLocked() ? QColor(96,0,255) :
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QColor(Qt::blue)).lighter(130);
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TimelineItemsRenderPassState *state;
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if (oldState == 0)
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state = new TimelineItemsRenderPassState;
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else
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state = static_cast<TimelineItemsRenderPassState *>(oldState);
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const TimelineModel *model = renderer->model();
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float selectedItem = renderer->selectedItem() == -1 ? -1 :
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model->selectionId(renderer->selectedItem());
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state->collapsedRowMaterial.setScale(QVector2D(spacing / parentState->scale(), 1));
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state->collapsedRowMaterial.setSelectedItem(selectedItem);
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state->collapsedRowMaterial.setSelectionColor(selectionColor);
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if (state->expandedRows.isEmpty()) {
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state->expandedRows.reserve(model->expandedRowCount());
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state->collapsedRows.reserve(model->collapsedRowCount());
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for (int i = 0; i < model->expandedRowCount(); ++i)
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state->expandedRows << new TimelineExpandedRowNode;
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for (int i = 0; i < model->collapsedRowCount(); ++i)
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state->collapsedRows << new QSGNode;
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}
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if (indexFrom < 0 || indexTo > model->count())
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return state;
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if (state->indexFrom < state->indexTo) {
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if (indexFrom < state->indexFrom) {
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for (int i = indexFrom; i < state->indexFrom;
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i+= TimelineItemsGeometry::maxEventsPerNode)
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updateNodes(i, qMin(i + TimelineItemsGeometry::maxEventsPerNode, state->indexFrom),
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renderer, parentState, state);
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}
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if (indexTo > state->indexTo) {
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for (int i = state->indexTo; i < indexTo; i+= TimelineItemsGeometry::maxEventsPerNode)
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updateNodes(i, qMin(i + TimelineItemsGeometry::maxEventsPerNode, indexTo), renderer,
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parentState, state);
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}
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} else {
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for (int i = indexFrom; i < indexTo; i+= TimelineItemsGeometry::maxEventsPerNode)
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updateNodes(i, qMin(i + TimelineItemsGeometry::maxEventsPerNode, indexTo), renderer,
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parentState, state);
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}
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if (model->expanded()) {
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for (int row = 0; row < model->expandedRowCount(); ++row) {
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TimelineExpandedRowNode *rowNode = static_cast<TimelineExpandedRowNode *>(
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state->expandedRows[row]);
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rowNode->material.setScale(
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QVector2D(spacing / parentState->scale(),
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static_cast<qreal>(model->expandedRowHeight(row))) /
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static_cast<qreal>(TimelineModel::defaultRowHeight()));
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rowNode->material.setSelectedItem(selectedItem);
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rowNode->material.setSelectionColor(selectionColor);
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}
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}
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state->indexFrom = qMin(state->indexFrom, indexFrom);
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state->indexTo = qMax(state->indexTo, indexTo);
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return state;
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}
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TimelineItemsRenderPass::TimelineItemsRenderPass()
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{
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}
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class TimelineItemsMaterialShader : public QSGMaterialShader
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{
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public:
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TimelineItemsMaterialShader();
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virtual void updateState(const RenderState &state, QSGMaterial *newEffect,
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QSGMaterial *oldEffect);
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virtual char const *const *attributeNames() const;
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private:
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virtual void initialize();
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int m_matrix_id;
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int m_scale_id;
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int m_selection_color_id;
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int m_selected_item_id;
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int m_z_range_id;
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};
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TimelineItemsMaterialShader::TimelineItemsMaterialShader()
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: QSGMaterialShader()
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{
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setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qmlprofiler/timelineitems.vert"));
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setShaderSourceFile(QOpenGLShader::Fragment,
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QStringLiteral(":/qmlprofiler/timelineitems.frag"));
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}
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void TimelineItemsMaterialShader::updateState(const RenderState &state, QSGMaterial *newMaterial,
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QSGMaterial *)
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{
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if (state.isMatrixDirty()) {
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TimelineItemsMaterial *material = static_cast<TimelineItemsMaterial *>(newMaterial);
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program()->setUniformValue(m_matrix_id, state.combinedMatrix());
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program()->setUniformValue(m_scale_id, material->scale());
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program()->setUniformValue(m_selection_color_id, material->selectionColor());
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program()->setUniformValue(m_selected_item_id, material->selectedItem());
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program()->setUniformValue(m_z_range_id, GLfloat(1.0));
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}
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}
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char const *const *TimelineItemsMaterialShader::attributeNames() const
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{
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static const char *const attr[] = {"vertexCoord", "rectSize", "selectionId", "vertexColor", 0};
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return attr;
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}
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void TimelineItemsMaterialShader::initialize()
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{
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m_matrix_id = program()->uniformLocation("matrix");
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m_scale_id = program()->uniformLocation("scale");
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m_selection_color_id = program()->uniformLocation("selectionColor");
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m_selected_item_id = program()->uniformLocation("selectedItem");
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m_z_range_id = program()->uniformLocation("_qt_zRange");
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}
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TimelineItemsMaterial::TimelineItemsMaterial() : m_selectedItem(-1)
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{
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setFlag(QSGMaterial::Blending, false);
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}
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QVector2D TimelineItemsMaterial::scale() const
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{
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return m_scale;
|
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}
|
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void TimelineItemsMaterial::setScale(QVector2D scale)
|
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{
|
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m_scale = scale;
|
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}
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||||
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float TimelineItemsMaterial::selectedItem() const
|
||||
{
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return m_selectedItem;
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}
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void TimelineItemsMaterial::setSelectedItem(float selectedItem)
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{
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m_selectedItem = selectedItem;
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}
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QColor TimelineItemsMaterial::selectionColor() const
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{
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return m_selectionColor;
|
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}
|
||||
|
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void TimelineItemsMaterial::setSelectionColor(QColor selectionColor)
|
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{
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m_selectionColor = selectionColor;
|
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}
|
||||
|
||||
QSGMaterialType *TimelineItemsMaterial::type() const
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||||
{
|
||||
static QSGMaterialType type;
|
||||
return &type;
|
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}
|
||||
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QSGMaterialShader *TimelineItemsMaterial::createShader() const
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{
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return new TimelineItemsMaterialShader;
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}
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|
||||
void OpaqueColoredPoint2DWithSize::set(float nx, float ny, float nw, float nh, float nid,
|
||||
uchar nr, uchar ng, uchar nb) {
|
||||
x = nx; y = ny; w = nw; h = nh; id = nid;
|
||||
r = nr; g = ng, b = nb; a = 255;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user