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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "compositionnode.h"
#include "effectutils.h"
#include "effectcomposeruniformsmodel.h"
#include "propertyhandler.h"
#include "uniform.h"
#include <QFile>
#include <QJsonArray>
#include <QJsonDocument>
namespace EffectComposer {
CompositionNode::CompositionNode(const QString &effectName, const QString &qenPath,
const QJsonObject &jsonObject)
{
QJsonObject json;
if (jsonObject.isEmpty()) {
QFile qenFile(qenPath);
if (!qenFile.open(QIODevice::ReadOnly)) {
qWarning("Couldn't open effect file.");
return;
}
QByteArray loadData = qenFile.readAll();
QJsonParseError parseError;
QJsonDocument jsonDoc(QJsonDocument::fromJson(loadData, &parseError));
if (parseError.error != QJsonParseError::NoError) {
QString error = QString("Error parsing effect node");
QString errorDetails = QString("%1: %2").arg(parseError.offset).arg(parseError.errorString());
qWarning() << error;
qWarning() << errorDetails;
return;
}
json = jsonDoc.object().value("QEN").toObject();
parse(effectName, qenPath, json);
}
else {
parse(effectName, "", jsonObject);
}
}
QString CompositionNode::fragmentCode() const
{
return m_fragmentCode;
}
QString CompositionNode::vertexCode() const
{
return m_vertexCode;
}
QString CompositionNode::description() const
{
return m_description;
}
QString CompositionNode::id() const
{
return m_id;
}
QObject *CompositionNode::uniformsModel()
{
return &m_unifomrsModel;
}
QStringList CompositionNode::requiredNodes() const
{
return m_requiredNodes;
}
bool CompositionNode::isEnabled() const
{
return m_isEnabled;
}
void CompositionNode::setIsEnabled(bool newIsEnabled)
{
if (newIsEnabled != m_isEnabled) {
m_isEnabled = newIsEnabled;
emit isEnabledChanged();
}
}
bool CompositionNode::isDependency() const
{
return m_refCount > 0;
}
CompositionNode::NodeType CompositionNode::type() const
{
return m_type;
}
void CompositionNode::parse(const QString &effectName, const QString &qenPath, const QJsonObject &json)
{
int version = -1;
if (json.contains("version"))
version = json["version"].toInt(-1);
if (version != 1) {
QString error = QString("Error: Unknown effect version (%1)").arg(version);
qWarning() << qPrintable(error);
return;
}
m_name = json.value("name").toString();
m_description = json.value("description").toString();
m_fragmentCode = EffectUtils::codeFromJsonArray(json.value("fragmentCode").toArray());
m_vertexCode = EffectUtils::codeFromJsonArray(json.value("vertexCode").toArray());
if (json.contains("extraMargin"))
m_extraMargin = json.value("extraMargin").toInt();
if (json.contains("enabled"))
m_isEnabled = json["enabled"].toBool();
m_id = json.value("id").toString();
if (m_id.isEmpty() && !qenPath.isEmpty()) {
QString fileName = qenPath.split('/').last();
fileName.chop(4); // remove ".qen"
m_id = fileName;
}
// parse properties
QJsonArray jsonProps = json.value("properties").toArray();
for (const auto /*QJsonValueRef*/ &prop : jsonProps) {
const auto uniform = new Uniform(effectName, prop.toObject(), qenPath);
m_unifomrsModel.addUniform(uniform);
m_uniforms.append(uniform);
g_propertyData.insert(uniform->name(), uniform->value());
if (uniform->type() == Uniform::Type::Define) {
// Changing defines requires rebaking the shaders
connect(uniform, &Uniform::uniformValueChanged, this, &CompositionNode::rebakeRequested);
}
}
// Seek through code to get tags
QStringList shaderCodeLines;
shaderCodeLines += m_vertexCode.split('\n');
shaderCodeLines += m_fragmentCode.split('\n');
for (const QString &codeLine : std::as_const(shaderCodeLines)) {
QString trimmedLine = codeLine.trimmed();
if (trimmedLine.startsWith("@requires")) {
// Get the required node, remove "@requires "
QString nodeId = trimmedLine.sliced(10).toLower();
if (!nodeId.isEmpty() && !m_requiredNodes.contains(nodeId))
m_requiredNodes << nodeId;
}
}
}
QList<Uniform *> CompositionNode::uniforms() const
{
return m_uniforms;
}
int CompositionNode::incRefCount()
{
++m_refCount;
if (m_refCount == 1)
emit isDepencyChanged();
return m_refCount;
}
int CompositionNode::decRefCount()
{
--m_refCount;
if (m_refCount == 0)
emit isDepencyChanged();
return m_refCount;
}
void CompositionNode::setRefCount(int count)
{
bool notifyChange = (m_refCount > 0 && count == 0) || (m_refCount <= 0 && count > 0);
m_refCount = count;
if (notifyChange)
emit isDepencyChanged();
}
QString CompositionNode::name() const
{
return m_name;
}
} // namespace EffectComposer
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