NazaraEngine/include/Nazara/Graphics/View.hpp

95 lines
3.0 KiB
C++

// Copyright (C) 2015 Jérôme Leclercq
// This file is part of the "Nazara Engine - Graphics module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_VIEW_HPP
#define NAZARA_VIEW_HPP
#include <Nazara/Prerequesites.hpp>
#include <Nazara/Graphics/AbstractViewer.hpp>
#include <Nazara/Math/Frustum.hpp>
#include <Nazara/Math/Matrix4.hpp>
#include <Nazara/Math/Rect.hpp>
#include <Nazara/Math/Vector3.hpp>
#include <Nazara/Renderer/RenderTarget.hpp>
#include <Nazara/Utility/Node.hpp>
class NAZARA_API NzView : public NzAbstractViewer, public NzNode, NzRenderTarget::Listener
{
public:
NzView();
NzView(const NzVector2f& size);
~NzView();
void EnsureFrustumUpdate() const;
void EnsureProjectionMatrixUpdate() const;
void EnsureViewMatrixUpdate() const;
void EnsureViewportUpdate() const;
float GetAspectRatio() const;
NzVector3f GetEyePosition() const;
NzVector3f GetForward() const;
const NzFrustumf& GetFrustum() const;
NzVector3f GetGlobalForward() const;
NzVector3f GetGlobalRight() const;
NzVector3f GetGlobalUp() const;
const NzMatrix4f& GetInvViewProjMatrix() const;
const NzMatrix4f& GetProjectionMatrix() const;
const NzVector2f& GetSize() const;
const NzRenderTarget* GetTarget() const;
const NzRectf& GetTargetRegion() const;
const NzMatrix4f& GetViewMatrix() const;
const NzMatrix4f& GetViewProjMatrix() const;
const NzRecti& GetViewport() const;
float GetZFar() const;
float GetZNear() const;
NzVector2i MapWorldToPixel(const NzVector2f& coords);
NzVector2f MapPixelToWorld(const NzVector2i& pixel);
void SetSize(const NzVector2f& size);
void SetSize(float width, float height);
void SetTarget(const NzRenderTarget* renderTarget);
void SetTarget(const NzRenderTarget& renderTarget);
void SetTargetRegion(const NzRectf& region);
void SetViewport(const NzRecti& viewport);
void SetZFar(float zFar);
void SetZNear(float zNear);
private:
void ApplyView() const override;
void InvalidateNode() override;
void OnRenderTargetReleased(const NzRenderTarget* renderTarget, void* userdata) override;
bool OnRenderTargetSizeChange(const NzRenderTarget* renderTarget, void* userdata) override;
void UpdateFrustum() const;
void UpdateInvViewProjMatrix() const;
void UpdateProjectionMatrix() const;
void UpdateViewMatrix() const;
void UpdateViewProjMatrix() const;
void UpdateViewport() const;
mutable NzFrustumf m_frustum;
mutable NzMatrix4f m_invViewProjMatrix;
mutable NzMatrix4f m_projectionMatrix;
mutable NzMatrix4f m_viewMatrix;
mutable NzMatrix4f m_viewProjMatrix;
NzRectf m_targetRegion;
mutable NzRecti m_viewport;
NzVector2f m_size;
const NzRenderTarget* m_target;
mutable bool m_frustumUpdated;
mutable bool m_invViewProjMatrixUpdated;
mutable bool m_projectionMatrixUpdated;
mutable bool m_viewMatrixUpdated;
mutable bool m_viewProjMatrixUpdated;
mutable bool m_viewportUpdated;
float m_zFar;
float m_zNear;
};
#endif // NAZARA_VIEW_HPP