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| |
| #ifndef QSGSIMPLEMATERIAL_H |
| #define QSGSIMPLEMATERIAL_H |
| |
| #include <QtQuick/qsgmaterial.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| #if QT_DEPRECATED_SINCE(5, 15) |
| |
| template <typename State> |
| class QSGSimpleMaterialShader : public QSGMaterialShader |
| { |
| public: |
| void initialize() override { |
| QSGMaterialShader::initialize(); |
| #if QT_CONFIG(opengl) |
| m_id_matrix = program()->uniformLocation(uniformMatrixName()); |
| if (m_id_matrix < 0) { |
| qFatal("QSGSimpleMaterialShader does not implement 'uniform highp mat4 %s;' in its vertex shader", |
| uniformMatrixName()); |
| } |
| |
| const char *opacity = uniformOpacityName(); |
| if (opacity) { |
| m_id_opacity = program()->uniformLocation(uniformOpacityName()); |
| if (m_id_opacity < 0) { |
| qFatal("QSGSimpleMaterialShader does not implement 'uniform lowp float %s' in its fragment shader", |
| uniformOpacityName()); |
| } |
| } else { |
| m_id_opacity = -1; |
| } |
| #endif |
| resolveUniforms(); |
| } |
| |
| // ### Qt 6: make both virtual and fix docs |
| const char *uniformMatrixName() const { return "qt_Matrix"; } |
| const char *uniformOpacityName() const { return "qt_Opacity"; } |
| |
| void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override; |
| |
| QT_DEPRECATED_X("QSGSimpleMaterialShader is going to be removed in Qt 6.0. Use QSGMaterialShader instead.") |
| virtual void updateState(const State *newState, const State *oldState) = 0; |
| |
| virtual void resolveUniforms() {} |
| |
| virtual QList<QByteArray> attributes() const = 0; |
| |
| char const *const *attributeNames() const override |
| { |
| if (m_attribute_pointers.size()) |
| return m_attribute_pointers.constData(); |
| |
| QList<QByteArray> names = attributes(); |
| |
| // Calculate the total number of bytes needed, so we don't get rellocs and |
| // bad pointers while copying over the individual names. |
| // Add an extra byte pr entry for the '\0' char. |
| int total = 0; |
| for (int i=0; i<names.size(); ++i) |
| total += names.at(i).size() + 1; |
| m_attribute_name_data.reserve(total); |
| |
| // Copy over the names |
| for (int i=0; i<names.size(); ++i) { |
| m_attribute_pointers << m_attribute_name_data.constData() + m_attribute_name_data.size(); |
| m_attribute_name_data.append(names.at(i)); |
| m_attribute_name_data.append('\0'); |
| } |
| |
| // Append the "null" terminator |
| m_attribute_pointers << 0; |
| |
| return m_attribute_pointers.constData(); |
| } |
| |
| private: |
| int m_id_matrix; |
| int m_id_opacity; |
| |
| mutable QByteArray m_attribute_name_data; |
| mutable QVector<const char *> m_attribute_pointers; |
| }; |
| |
| #define QSG_DECLARE_SIMPLE_SHADER(Shader, State) \ |
| static QSGMaterialShader *createShader() \ |
| { \ |
| return new Shader; \ |
| } \ |
| public: \ |
| static QSGSimpleMaterial<State> *createMaterial() \ |
| { \ |
| return new QSGSimpleMaterial<State>(createShader); \ |
| } |
| |
| |
| typedef QSGMaterialShader *(*PtrShaderCreateFunc)(); |
| |
| |
| template <typename State> |
| class QSGSimpleMaterial : public QSGMaterial |
| { |
| public: |
| #ifndef Q_CLANG_QDOC |
| QT_DEPRECATED_X("QSGSimpleMaterial is going to be removed in Qt 6.0. Use QSGMaterial instead.") |
| QSGSimpleMaterial(const State &aState, PtrShaderCreateFunc func) |
| : m_state(aState) |
| , m_func(func) |
| { |
| } |
| |
| QT_DEPRECATED_X("QSGSimpleMaterial is going to be removed in Qt 6.0. Use QSGMaterial instead.") |
| QSGSimpleMaterial(PtrShaderCreateFunc func) |
| : m_func(func) |
| { |
| } |
| |
| QSGMaterialShader *createShader() const override { return m_func(); } |
| QSGMaterialType *type() const override { return &m_type; } |
| |
| State *state() { return &m_state; } |
| const State *state() const { return &m_state; } |
| #endif |
| |
| private: |
| static QSGMaterialType m_type; |
| State m_state; |
| PtrShaderCreateFunc m_func; |
| }; |
| |
| #define QSG_DECLARE_SIMPLE_COMPARABLE_SHADER(Shader, State) \ |
| static QSGMaterialShader *createShader() \ |
| { \ |
| return new Shader; \ |
| } \ |
| public: \ |
| static QSGSimpleMaterialComparableMaterial<State> *createMaterial() \ |
| { \ |
| return new QSGSimpleMaterialComparableMaterial<State>(createShader); \ |
| } |
| |
| template <typename State> |
| class QSGSimpleMaterialComparableMaterial : public QSGSimpleMaterial<State> |
| { |
| |
| public: |
| QSGSimpleMaterialComparableMaterial(const State &state, PtrShaderCreateFunc func) |
| : QSGSimpleMaterial<State>(state, func) {} |
| |
| QSGSimpleMaterialComparableMaterial(PtrShaderCreateFunc func) |
| : QSGSimpleMaterial<State>(func) {} |
| |
| int compare(const QSGMaterial *other) const override { |
| return QSGSimpleMaterialComparableMaterial<State>::state()->compare(static_cast<const QSGSimpleMaterialComparableMaterial<State> *>(other)->state()); |
| } |
| }; |
| |
| |
| template <typename State> |
| QSGMaterialType QSGSimpleMaterial<State>::m_type; |
| |
| |
| template <typename State> |
| Q_INLINE_TEMPLATE void QSGSimpleMaterialShader<State>::updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) |
| { |
| #if QT_CONFIG(opengl) |
| if (state.isMatrixDirty()) |
| program()->setUniformValue(m_id_matrix, state.combinedMatrix()); |
| if (state.isOpacityDirty() && m_id_opacity >= 0) |
| program()->setUniformValue(m_id_opacity, state.opacity()); |
| #else |
| Q_UNUSED(state) |
| #endif |
| State *ns = static_cast<QSGSimpleMaterial<State> *>(newMaterial)->state(); |
| State *old = nullptr; |
| if (oldMaterial) |
| old = static_cast<QSGSimpleMaterial<State> *>(oldMaterial)->state(); |
| updateState(ns, old); |
| } |
| |
| #endif |
| |
| QT_END_NAMESPACE |
| |
| |
| #endif |