File indexing completed on 2024-05-05 16:16:42

 /*
  * SPDX-FileCopyrightText: 2021 Arjen Hiemstra <ahiemstra@heimr.nl>
  *
  * SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
  */
 
 #include "BarChartMaterial.h"
 
 BarChartMaterial::BarChartMaterial()
 {
     setFlag(QSGMaterial::Blending);
 }
 
 BarChartMaterial::~BarChartMaterial()
 {
 }
 
 QSGMaterialType *BarChartMaterial::type() const
 {
     static QSGMaterialType type;
     return &type;
 }
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 QSGMaterialShader *BarChartMaterial::createShader() const
 #else
 QSGMaterialShader *BarChartMaterial::createShader(QSGRendererInterface::RenderMode) const
 #endif
 {
     return new BarChartShader();
 }
 
 int BarChartMaterial::compare(const QSGMaterial *other) const
 {
     auto material = static_cast<const BarChartMaterial *>(other);
 
     /* clang-format off */
     if (material->aspect == aspect
         && qFuzzyCompare(material->radius, radius)
         && material->backgroundColor == backgroundColor) { /* clang-format on */
         return 0;
     }
 
     return QSGMaterial::compare(other);
 }
 
 BarChartShader::BarChartShader()
 {
     setShaders(QStringLiteral("barchart.vert"), QStringLiteral("barchart.frag"));
 }
 
 BarChartShader::~BarChartShader()
 {
 }
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 const char *const *BarChartShader::attributeNames() const
 {
     static const char *const names[] = {"in_vertex", "in_uv", "in_color", "in_value", nullptr};
     return names;
 }
 
 void BarChartShader::initialize()
 {
     QSGMaterialShader::initialize();
     m_matrixLocation = program()->uniformLocation("matrix");
     m_opacityLocation = program()->uniformLocation("opacity");
     m_aspectLocation = program()->uniformLocation("aspect");
     m_backgroundColorLocation = program()->uniformLocation("backgroundColor");
     m_radiusLocation = program()->uniformLocation("radius");
 }
 
 void BarChartShader::updateState(const QSGMaterialShader::RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial)
 {
     if (state.isMatrixDirty()) {
         program()->setUniformValue(m_matrixLocation, state.combinedMatrix());
     }
     if (state.isOpacityDirty()) {
         program()->setUniformValue(m_opacityLocation, state.opacity());
     }
 
     if (!oldMaterial || newMaterial->compare(oldMaterial) != 0) {
         BarChartMaterial *material = static_cast<BarChartMaterial *>(newMaterial);
         program()->setUniformValue(m_aspectLocation, material->aspect);
         program()->setUniformValue(m_backgroundColorLocation, material->backgroundColor);
         program()->setUniformValue(m_radiusLocation, material->radius);
     }
 }
 #else
 bool BarChartShader::updateUniformData(QSGMaterialShader::RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial)
 {
     bool changed = false;
     QByteArray *buf = state.uniformData();
     Q_ASSERT(buf->size() >= 96);
 
     if (state.isMatrixDirty()) {
         const QMatrix4x4 m = state.combinedMatrix();
         memcpy(buf->data(), m.constData(), 64);
         changed = true;
     }
 
     if (state.isOpacityDirty()) {
         const float opacity = state.opacity();
         memcpy(buf->data() + 72, &opacity, 4);
         changed = true;
     }
 
     if (!oldMaterial || newMaterial->compare(oldMaterial) != 0) {
         const auto material = static_cast<BarChartMaterial *>(newMaterial);
         memcpy(buf->data() + 64, &material->aspect, 8);
         memcpy(buf->data() + 76, &material->radius, 4);
         float c[4];
         material->backgroundColor.getRgbF(&c[0], &c[1], &c[2], &c[3]);
         memcpy(buf->data() + 80, c, 16);
         changed = true;
     }
 
     return changed;
 }
 #endif