mirror of https://gitlab.com/kicad/code/kicad.git
125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
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* Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file cpostshader.h
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* @brief a base class to create post shaders
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*/
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#ifndef CPOSTSHADER_H
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#define CPOSTSHADER_H
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#include "ccamera.h"
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class CPOSTSHADER
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{
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public:
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explicit CPOSTSHADER( const CCAMERA &aCamera );
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virtual ~CPOSTSHADER();
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virtual SFVEC3F Shade( const SFVEC2I &aShaderPos ) const = 0;
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/**
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* @brief ApplyShadeColor - apply the final color process using a previous stage color
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* @param aShadeColor - The result of the shader
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* @return the result of the shade process
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*/
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virtual SFVEC3F ApplyShadeColor( const SFVEC2I &aShaderPos, const SFVEC3F &aInputColor, const SFVEC3F &aShadeColor ) const = 0;
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void UpdateSize( const SFVEC2UI &aSize );
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void UpdateSize( unsigned int xSize, unsigned int ySize );
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void InitFrame() { m_tmin = FLT_MAX; m_tmax = 0.0f; }
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void SetPixelData( unsigned int x,
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unsigned int y,
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const SFVEC3F &aNormal,
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const SFVEC3F &aColor,
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const SFVEC3F &aHitPosition,
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float aDepth,
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float aShadowAttFactor );
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const SFVEC3F &GetColorAtNotProtected( const SFVEC2I &aPos ) const;
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void DebugBuffersOutputAsImages() const;
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protected:
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const SFVEC3F &GetNormalAt( const SFVEC2F &aPos ) const;
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const SFVEC3F &GetColorAt( const SFVEC2F &aPos ) const;
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const SFVEC3F &GetPositionAt( const SFVEC2F &aPos ) const;
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float GetDepthAt( const SFVEC2F &aPos ) const;
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const SFVEC3F &GetNormalAt( const SFVEC2I &aPos ) const;
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const SFVEC3F &GetColorAt( const SFVEC2I &aPos ) const;
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const SFVEC3F &GetPositionAt( const SFVEC2I &aPos ) const;
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const float &GetShadowFactorAt( const SFVEC2I &aPos ) const;
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float GetDepthAt( const SFVEC2I &aPos ) const;
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float GetDepthNormalizedAt( const SFVEC2I &aPos ) const;
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float GetMaxDepth() const { return m_tmax; }
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private:
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void destroy_buffers();
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public:
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inline unsigned int GetIndex( const SFVEC2F& aPos ) const
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{
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SFVEC2F clampPos;
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clampPos.x = glm::clamp( aPos.x, 0.0f, 1.0f );
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clampPos.y = glm::clamp( aPos.y, 0.0f, 1.0f );
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const unsigned int idx = (unsigned int)( (float)m_size.x * clampPos.x +
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(float)m_size.x * (float)m_size.y *
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clampPos.y );
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return glm::min( idx, m_size.x * m_size.y );
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}
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inline unsigned int GetIndex( const SFVEC2I& aPos ) const
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{
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SFVEC2I clampPos;
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clampPos.x = glm::clamp( aPos.x, 0, (int)m_size.x - 1 );
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clampPos.y = glm::clamp( aPos.y, 0, (int)m_size.y - 1 );
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return (unsigned int)( clampPos.x + m_size.x * clampPos.y );
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}
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protected:
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const CCAMERA &m_camera;
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SFVEC2UI m_size;
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SFVEC3F *m_normals;
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SFVEC3F *m_color;
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SFVEC3F *m_wc_hitposition;
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float *m_depth;
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float *m_shadow_att_factor;
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float m_tmin;
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float m_tmax;
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};
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#endif // CPOSTSHADER_H
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