Revision control
++ // Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "deferredrenderer.h"
++ #include "gbuffer.h"
++ #include <Qt3DRender/QParameter>
++ #include <QWindow>
++
++ DeferredRenderer::DeferredRenderer(Qt3DCore::QNode *parent)
++ : Qt3DRender::QViewport(parent)
++ , m_surfaceSelector(new Qt3DRender::QRenderSurfaceSelector(this))
++ , m_sceneFilter(new Qt3DRender::QLayerFilter(m_surfaceSelector))
++ , m_screenQuadFilter(new Qt3DRender::QLayerFilter(m_surfaceSelector))
++ , m_clearScreenQuad(new Qt3DRender::QClearBuffers(m_screenQuadFilter))
++ , m_gBufferTargetSelector(new Qt3DRender::QRenderTargetSelector(m_sceneFilter))
++ , m_clearGBuffer(new Qt3DRender::QClearBuffers(m_gBufferTargetSelector))
++ , m_geometryPassFilter(new Qt3DRender::QRenderPassFilter(m_clearGBuffer))
++ , m_finalPassFilter(new Qt3DRender::QRenderPassFilter(m_clearScreenQuad))
++ , m_sceneCameraSelector(new Qt3DRender::QCameraSelector(m_geometryPassFilter))
++ , m_winSize(new Qt3DRender::QParameter(QStringLiteral("winSize"), QSizeF(1024.0f, 768.0f)))
++ , m_gBuffer(new GBuffer(this))
++ , m_window(nullptr)
++ {
++ m_clearGBuffer->setBuffers(Qt3DRender::QClearBuffers::ColorDepthBuffer);
++ m_clearScreenQuad->setBuffers(Qt3DRender::QClearBuffers::ColorDepthBuffer);
++ m_gBufferTargetSelector->setTarget(m_gBuffer);
++
++ m_finalPassFilter->addParameter(new Qt3DRender::QParameter(QStringLiteral("position"), m_gBuffer->positionTexture()));
++ m_finalPassFilter->addParameter(new Qt3DRender::QParameter(QStringLiteral("normal"), m_gBuffer->normalTexture()));
++ m_finalPassFilter->addParameter(new Qt3DRender::QParameter(QStringLiteral("color"), m_gBuffer->colorTexture()));
++ m_finalPassFilter->addParameter(m_winSize);
++ }
++
++ void DeferredRenderer::setSceneCamera(Qt3DCore::QEntity *camera)
++ {
++ m_sceneCameraSelector->setCamera(camera);
++ }
++
++ void DeferredRenderer::setGeometryPassCriteria(QList<Qt3DRender::QFilterKey *> criteria)
++ {
++ for (Qt3DRender::QFilterKey *c : std::as_const(criteria))
++ m_geometryPassFilter->addMatch(c);
++ }
++
++ void DeferredRenderer::setFinalPassCriteria(QList<Qt3DRender::QFilterKey *> criteria)
++ {
++ for (Qt3DRender::QFilterKey *c : std::as_const(criteria))
++ c->setParent(m_finalPassFilter);
++ }
++
++ void DeferredRenderer::setGBufferLayer(Qt3DRender::QLayer *layer)
++ {
++ m_sceneFilter->addLayer(layer);
++ }
++
++ void DeferredRenderer::setScreenQuadLayer(Qt3DRender::QLayer *layer)
++ {
++ m_screenQuadFilter->addLayer(layer);
++ }
++
++ void DeferredRenderer::setSurface(QWindow *surface)
++ {
++ if (surface != m_window) {
++
++ // Disconnect old window's signals
++ if (m_window != nullptr) {
++ QObject::disconnect(m_widthChangedConnection);
++ QObject::disconnect(m_heightChangedConnection);
++ }
++
++ m_window = surface;
++ m_surfaceSelector->setSurface(surface);
++
++ if (m_window != nullptr) {
++ // Store connections
++ m_widthChangedConnection = QObject::connect(surface, &QWindow::widthChanged,
++ this, [this](int width) {
++ m_winSize->setValue(QSizeF(float(width), m_winSize->value().toSizeF().height()));
++ });
++ m_heightChangedConnection = QObject::connect(surface, &QWindow::heightChanged,
++ this, [this](int height) {
++ m_winSize->setValue(QSizeF(m_winSize->value().toSizeF().width(), float(height)));
++ });
++ }
++ }
++ }