126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
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///////////////////////////////////////////////////////////////////////
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// CLensFlare Class
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//
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// (c) 2003 IDV, Inc.
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//
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// *** INTERACTIVE DATA VISUALIZATION (IDV) PROPRIETARY INFORMATION ***
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//
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// This software is supplied under the terms of a license agreement or
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// nondisclosure agreement with Interactive Data Visualization and may
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// not be copied or disclosed except in accordance with the terms of
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// that agreement.
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//
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// Copyright (c) 2001-2003 IDV, Inc.
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// All Rights Reserved.
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//
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// IDV, Inc.
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// 1233 Washington St. Suite 610
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// Columbia, SC 29201
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// Voice: (803) 799-1699
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// Fax: (803) 931-0320
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// Web: http://www.idvinc.com
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//
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///////////////////////////////////////////////////////////////////////
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// Preprocessor
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#pragma once
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#include "GrpImageInstance.h"
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#include "GrpScreen.h"
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#include <float.h>
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#include <string>
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#include <vector>
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///////////////////////////////////////////////////////////////////////
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// Constants
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const float c_fHalfMaxBright = 0.45f;
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const float c_fDistanceScale = 1.0f;
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const int c_nDepthTestDimension = 15;
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///////////////////////////////////////////////////////////////////////
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// CFlare
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class CFlare
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{
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public:
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void Draw(float fBrightScale, int nWidth, int nHeight, int nX, int nY);
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void Init(std::string strPath);
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CFlare();
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virtual ~CFlare();
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private:
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struct SFlarePiece
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{
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SFlarePiece() :
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m_fPosition(0.0f),
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m_fWidth(0.0f),
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m_pColor(NULL)
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{
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}
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CGraphicImageInstance m_imageInstance;
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float m_fPosition; // -1.0 = light location, 0.0 = center, 1.0 = far end of flare
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float m_fWidth; // height = width
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float * m_pColor;
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};
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std::vector<SFlarePiece *> m_vFlares;
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};
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///////////////////////////////////////////////////////////////////////
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// CLensFlare
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class CLensFlare : public CScreen
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{
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public:
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CLensFlare();
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virtual ~CLensFlare();
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void Compute(const D3DXVECTOR3 & c_rv3LightDirection); // D3DTS_VIEW<45><57> <20><><EFBFBD><EFBFBD> ī<><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>, ī<><EFBFBD> <20><><EFBFBD><EFBFBD> <20>ڿ<EFBFBD> <20>ؾ<EFBFBD> <20><>.
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void DrawBeforeFlare();
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void DrawAfterFlare();
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void DrawFlare();
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void SetMainFlare(std::string strSunFile, float fSunSize);
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void Initialize(std::string strPath);
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void SetFlareLocation(double dX, double dY);
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void SetVisible(bool bState) { m_bFlareVisible = bState; }
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bool IsVisible() { return m_bFlareVisible; }
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void SetBrightnesses(float fBeforeBright, float fAfterBright);
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void ReadControlPixels();
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void AdjustBrightness();
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void CharacterizeFlare(bool bEnabled, bool bShowMainFlare, float fMaxBrightness, const D3DXCOLOR & c_rColor);
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protected:
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float Interpolate(float fStart, float fEnd, float fPercent);
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private:
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float m_afFlarePos[2], m_afFlareWinPos[2];
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float m_fBeforeBright, m_fAfterBright;
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bool m_bFlareVisible, m_bDrawFlare, m_bDrawBrightScreen;
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float m_fSunSize;
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CFlare m_cFlare;
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float * m_pControlPixels;
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float * m_pTestPixels;
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bool m_bEnabled;
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bool m_bShowMainFlare;
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float m_fMaxBrightness;
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float m_afColor[4];
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CGraphicImageInstance m_SunFlareImageInstance;
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void ReadDepthPixels(float * pPixels);
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void ClampBrightness();
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};
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