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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qsgcurvestrokenode_p_p.h"
#include "qsgcurvestrokenode_p.h"
QT_BEGIN_NAMESPACE
bool QSGCurveStrokeMaterialShader::updateUniformData(RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect)
{
bool changed = false;
QByteArray *buf = state.uniformData();
Q_ASSERT(buf->size() >= 64);
const int matrixCount = qMin(state.projectionMatrixCount(), newEffect->viewCount());
auto *newMaterial = static_cast<QSGCurveStrokeMaterial *>(newEffect);
auto *oldMaterial = static_cast<QSGCurveStrokeMaterial *>(oldEffect);
auto *newNode = newMaterial != nullptr ? newMaterial->node() : nullptr;
auto *oldNode = oldMaterial != nullptr ? oldMaterial->node() : nullptr;
if (state.isMatrixDirty()) {
float localScale = newNode != nullptr ? newNode->localScale() : 1.0f;
for (int viewIndex = 0; viewIndex < matrixCount; ++viewIndex) {
QMatrix4x4 m = state.combinedMatrix(viewIndex);
m.scale(localScale);
memcpy(buf->data() + viewIndex * 64, m.constData(), 64);
}
float matrixScale = qSqrt(qAbs(state.determinant())) * state.devicePixelRatio() * localScale;
memcpy(buf->data() + matrixCount * 64, &matrixScale, 4);
changed = true;
}
if (state.isOpacityDirty()) {
const float opacity = state.opacity();
memcpy(buf->data() + matrixCount * 64 + 4, &opacity, 4);
changed = true;
}
int offset = matrixCount * 64 + 16;
if (newNode == nullptr)
return changed;
QVector4D newStrokeColor(newNode->color().redF(),
newNode->color().greenF(),
newNode->color().blueF(),
newNode->color().alphaF());
QVector4D oldStrokeColor = oldNode != nullptr
? QVector4D(oldNode->color().redF(),
oldNode->color().greenF(),
oldNode->color().blueF(),
oldNode->color().alphaF())
: QVector4D{};
if (oldNode == nullptr || oldStrokeColor != newStrokeColor) {
memcpy(buf->data() + offset, &newStrokeColor, 16);
changed = true;
}
offset += 16;
if (oldNode == nullptr || newNode->strokeWidth() != oldNode->strokeWidth()) {
float w = newNode->strokeWidth();
memcpy(buf->data() + offset, &w, 4);
changed = true;
}
offset += 4;
if (oldNode == nullptr || newNode->debug() != oldNode->debug()) {
float w = newNode->debug();
memcpy(buf->data() + offset, &w, 4);
changed = true;
}
// offset += 4;
return changed;
}
int QSGCurveStrokeMaterial::compare(const QSGMaterial *other) const
{
int typeDif = type() - other->type();
if (!typeDif) {
auto *othernode = static_cast<const QSGCurveStrokeMaterial*>(other)->node();
if (node()->color() != othernode->color())
return node()->color().rgb() < othernode->color().rgb() ? -1 : 1;
if (node()->strokeWidth() != othernode->strokeWidth())
return node()->strokeWidth() < othernode->strokeWidth() ? -1 : 1;
}
return typeDif;
}
QT_END_NAMESPACE
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