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113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_VIEWPORT_H
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#define NL_VIEWPORT_H
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#include "nel/misc/types_nl.h"
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#include "nel/misc/vector.h"
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#include "nel/misc/matrix.h"
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#include "nel/3d/frustum.h"
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#ifdef _X
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# undef _X
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#endif
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namespace NL3D
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{
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using NLMISC::CVector;
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using NLMISC::CMatrix;
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/**
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* CViewport is the description of the viewport used to render with a driver
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*
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*/
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/* *** IMPORTANT ********************
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* *** IF YOU MODIFY THE STRUCTURE OF THIS CLASS, PLEASE INCREMENT IDriver::InterfaceVersion TO INVALIDATE OLD DRIVER DLL
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* **********************************
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*/
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class CViewport
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{
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public:
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/// Default constructor. Setup a fullscreen viewport
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CViewport ();
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/**
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* Constructor
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*
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* \param x coordinate of the left edge of the viewport in the window coordinate system . Must be between 0.f and 1.f.
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* \param y coordinate of the bottom edge of the viewport in the window coordinate system . Must be between 0.f and 1.f.
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* \param width of the view port. Must be between 0.f and 1.f-x.
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* \param height of the view port. Must be between 0.f and 1.f-y.
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*/
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void init (float x, float y, float width, float height);
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/// Setup a fullscreen viewport.
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void initFullScreen ();
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/// Setup a 16/9 viewport.
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void init16_9 ();
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/** Get a 3d ray with a 2d point
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*
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* \param x is the x coordinate in the window coordinate system of the 2d point.
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* \param y is the y coordinate in the window coordinate system of the 2d point.
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* \param pos gets the position of a 3d point on the ray. It is also the position of the camera
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* \param dir gets the direction of the ray. The direction is the same than the camera one. It is NOT normalized.
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* \param camMatrix is the matrix of the camera in use in this viewport.
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* \param camFrust is the frustum of the camera in use in this viewport.
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*/
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void getRayWithPoint (float x, float y, CVector& pos, CVector& dir, const CMatrix& camMatrix, const CFrustum& camFrust) const;
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/** Get the viewport values
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*
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* \param x get the x coordinate of the left edge of the viewport in the window coordinate system . Must be between 0.f and 1.f.
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* \param y get the y coordinate of the bottom edge of the viewport in the window coordinate system . Must be between 0.f and 1.f.
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* \param width get the width of the view port. Must be between 0.f and 1.f-x.
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* \param height get the height of the view port. Must be between 0.f and 1.f-y.
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*/
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void getValues (float& x, float& y, float& width, float& height) const
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{
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x=_X;
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y=_Y;
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width=_Width;
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height=_Height;
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}
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float getX() const { return _X; }
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float getY() const { return _Y; }
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float getWidth() const { return _Width; }
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float getHeight() const { return _Height; }
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private:
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float _X;
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float _Y;
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float _Width;
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float _Height;
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};
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} // NL3D
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#endif // NL_VIEWPORT_H
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/* End of viewport.h */
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