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| |
| #ifndef QT3DRENDER_RENDER_RENDERSTATE_H |
| #define QT3DRENDER_RENDER_RENDERSTATE_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <Qt3DRender/private/genericstate_p.h> |
| #include <Qt3DRender/private/renderstates_p.h> |
| #include <Qt3DRender/private/statevariant_p.h> |
| #include <QVector> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DRender { |
| |
| class QRenderState; |
| |
| namespace Render { |
| |
| class RenderState; |
| |
| class Q_3DRENDERSHARED_PRIVATE_EXPORT RenderStateSet |
| { |
| public: |
| RenderStateSet(); |
| ~RenderStateSet(); |
| |
| template<typename GenericState> |
| void addState(const GenericState &state) |
| { |
| addState(StateVariant::fromValue(state)); |
| } |
| |
| /** |
| * @brief changeCost - metric of cost to change to this state-set from |
| * a candidate previous state-set. This is used to find an optimal |
| * ordering of state-sets when sending draw commands. |
| * @param previousState |
| * @return |
| */ |
| int changeCost(RenderStateSet* previousState); |
| |
| StateMaskSet stateMask() const; |
| void merge(const RenderStateSet *other); |
| |
| const QVector<StateVariant>& states() const noexcept { return m_states; } |
| QVector<StateVariant>& states() noexcept { return m_states; } |
| |
| bool canAddStateOfType(StateMask type) const; |
| |
| /** |
| * @brief contains - check if this set contains a matching piece of state |
| * @param ds |
| * @return |
| */ |
| bool contains(const StateVariant &ds) const; |
| |
| private: |
| bool hasStateOfType(StateMask type) const; |
| bool allowMultipleStatesOfType(StateMask type) const; |
| |
| private: |
| StateMaskSet m_stateMask; |
| QVector<StateVariant> m_states; |
| }; |
| |
| template<> |
| Q_3DRENDERSHARED_PRIVATE_EXPORT void RenderStateSet::addState<StateVariant>(const StateVariant &state); |
| |
| } // namespace Render |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT3DRENDER_RENDER_RENDERSTATE_H |