78 lines
1.4 KiB
C++
78 lines
1.4 KiB
C++
#include "StdAfx.h"
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#include "GrpColor.h"
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CGraphicColor::CGraphicColor()
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{
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Clear();
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}
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CGraphicColor::CGraphicColor(const CGraphicColor& c_rSrcColor)
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{
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Set(c_rSrcColor);
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}
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CGraphicColor::CGraphicColor(float r, float g, float b, float a)
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{
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Set(r, g, b, a);
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}
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CGraphicColor::CGraphicColor(DWORD color)
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{
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Set(color);
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}
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CGraphicColor::~CGraphicColor()
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{
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}
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void CGraphicColor::Clear()
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{
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Set(1.0f, 1.0f, 1.0f, 1.0f);
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}
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void CGraphicColor::Set(float r, float g, float b, float a)
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{
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m_r=r;
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m_g=g;
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m_b=b;
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m_a=a;
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}
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void CGraphicColor::Set(const CGraphicColor& c_rSrcColor)
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{
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m_r=c_rSrcColor.m_r;
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m_g=c_rSrcColor.m_g;
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m_b=c_rSrcColor.m_b;
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m_a=c_rSrcColor.m_a;
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}
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void CGraphicColor::Blend(float p, const CGraphicColor& c_rSrcColor, const CGraphicColor& c_rDstColor)
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{
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float q=1.0f-p;
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m_r=c_rSrcColor.m_r*q+c_rDstColor.m_r*p;
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m_g=c_rSrcColor.m_g*q+c_rDstColor.m_g*p;
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m_b=c_rSrcColor.m_b*q+c_rDstColor.m_b*p;
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m_a=c_rSrcColor.m_a*q+c_rDstColor.m_a*p;
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}
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void CGraphicColor::Set(DWORD pack)
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{
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m_b = (pack & 0xff) / 255.0f; pack >>= 8;
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m_g = (pack & 0xff) / 255.0f; pack >>= 8;
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m_r = (pack & 0xff) / 255.0f; pack >>= 8;
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m_a = (pack) / 255.0f;
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}
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DWORD CGraphicColor::GetPackValue() const
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{
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DWORD packValue=0;
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packValue = int(255.0f * m_a);packValue <<= 8;
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packValue |= int(255.0f * m_r);packValue <<= 8;
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packValue |= int(255.0f * m_g);packValue <<= 8;
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packValue |= int(255.0f * m_b);
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return packValue;
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}
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