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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "technique_p.h"
#include <Qt3DRender/qrenderpass.h>
#include <Qt3DRender/qparameter.h>
#include <Qt3DRender/qtechnique.h>
#include <Qt3DRender/qgraphicsapifilter.h>
#include <Qt3DRender/private/filterkey_p.h>
#include <Qt3DRender/private/qtechnique_p.h>
#include <Qt3DRender/private/shader_p.h>
#include <Qt3DCore/private/qchangearbiter_p.h>
#include <Qt3DRender/private/managers_p.h>
#include <Qt3DRender/private/techniquemanager_p.h>
#include <Qt3DRender/private/nodemanagers_p.h>
#include <QDebug>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
using namespace Qt3DCore;
Technique::Technique()
: BackendNode()
, m_isCompatibleWithRenderer(false)
, m_nodeManager(nullptr)
{
}
Technique::~Technique()
{
cleanup();
}
void Technique::cleanup()
{
QBackendNode::setEnabled(false);
m_parameterPack.clear();
m_renderPasses.clear();
m_filterKeyList.clear();
m_isCompatibleWithRenderer = false;
}
void Technique::syncFromFrontEnd(const QNode *frontEnd, bool firstTime)
{
const QTechnique *node = qobject_cast<const QTechnique *>(frontEnd);
if (!node)
return;
bool dirty = isEnabled() != frontEnd->isEnabled();
BackendNode::syncFromFrontEnd(frontEnd, firstTime);
auto renderPasses = qIdsForNodes(node->renderPasses());
std::sort(std::begin(renderPasses), std::end(renderPasses));
if (m_renderPasses != renderPasses) {
m_renderPasses = renderPasses;
dirty = true;
}
auto parameters = qIdsForNodes(node->parameters());
std::sort(std::begin(parameters), std::end(parameters));
if (m_parameterPack.parameters() != parameters) {
m_parameterPack.setParameters(parameters);
dirty = true;
}
auto filterKeys = qIdsForNodes(node->filterKeys());
std::sort(std::begin(filterKeys), std::end(filterKeys));
if (m_filterKeyList != filterKeys) {
m_filterKeyList = filterKeys;
dirty = true;
}
auto graphicsApiFilterData = QGraphicsApiFilterPrivate::get(node->graphicsApiFilter())->m_data;
if (m_graphicsApiFilterData != graphicsApiFilterData) {
m_graphicsApiFilterData = graphicsApiFilterData;
m_isCompatibleWithRenderer = false;
dirty = true;
}
if (dirty) {
m_nodeManager->techniqueManager()->addDirtyTechnique(peerId());
markDirty(AbstractRenderer::TechniquesDirty);
}
}
QList<Qt3DCore::QNodeId> Technique::parameters() const
{
return m_parameterPack.parameters();
}
void Technique::appendRenderPass(Qt3DCore::QNodeId renderPassId)
{
if (!m_renderPasses.contains(renderPassId))
m_renderPasses.append(renderPassId);
}
void Technique::removeRenderPass(Qt3DCore::QNodeId renderPassId)
{
m_renderPasses.removeOne(renderPassId);
}
QList<Qt3DCore::QNodeId> Technique::filterKeys() const
{
return m_filterKeyList;
}
QList<Qt3DCore::QNodeId> Technique::renderPasses() const
{
return m_renderPasses;
}
const GraphicsApiFilterData *Technique::graphicsApiFilter() const
{
return &m_graphicsApiFilterData;
}
bool Technique::isCompatibleWithRenderer() const
{
return m_isCompatibleWithRenderer;
}
void Technique::setCompatibleWithRenderer(bool compatible)
{
m_isCompatibleWithRenderer = compatible;
}
bool Technique::isCompatibleWithFilters(const QNodeIdVector &filterKeyIds)
{
// There is a technique filter so we need to check for a technique with suitable criteria.
// Check for early bail out if the technique doesn't have sufficient number of criteria and
// can therefore never satisfy the filter
if (m_filterKeyList.size() < filterKeyIds.size())
return false;
// Iterate through the filter criteria and for each one search for a criteria on the
// technique that satisfies it
for (const QNodeId &filterKeyId : filterKeyIds) {
FilterKey *filterKey = m_nodeManager->filterKeyManager()->lookupResource(filterKeyId);
bool foundMatch = false;
for (const QNodeId &techniqueFilterKeyId : std::as_const(m_filterKeyList)) {
FilterKey *techniqueFilterKey = m_nodeManager->filterKeyManager()->lookupResource(techniqueFilterKeyId);
if ((foundMatch = (*techniqueFilterKey == *filterKey)))
break;
}
// No match for TechniqueFilter criterion in any of the technique's criteria.
// So no way this can match. Don't bother checking the rest of the criteria.
if (!foundMatch)
return false;
}
return true;
}
void Technique::setNodeManager(NodeManagers *nodeManager)
{
m_nodeManager = nodeManager;
}
NodeManagers *Technique::nodeManager() const
{
return m_nodeManager;
}
void Technique::appendFilterKey(Qt3DCore::QNodeId criterionId)
{
if (!m_filterKeyList.contains(criterionId))
m_filterKeyList.append(criterionId);
}
void Technique::removeFilterKey(Qt3DCore::QNodeId criterionId)
{
m_filterKeyList.removeOne(criterionId);
}
TechniqueFunctor::TechniqueFunctor(AbstractRenderer *renderer, NodeManagers *manager)
: m_manager(manager)
, m_renderer(renderer)
{
}
QBackendNode *TechniqueFunctor::create(Qt3DCore::QNodeId id) const
{
Technique *technique = m_manager->techniqueManager()->getOrCreateResource(id);
technique->setNodeManager(m_manager);
technique->setRenderer(m_renderer);
return technique;
}
QBackendNode *TechniqueFunctor::get(QNodeId id) const
{
return m_manager->techniqueManager()->lookupResource(id);
}
void TechniqueFunctor::destroy(QNodeId id) const
{
m_manager->techniqueManager()->releaseResource(id);
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
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