cpixelrgb565.cpp

简单的COM 实际例子 用法1

//
// CPixelRGB565.cpp
//

#include "CBasePixel.h"
#include "CPixelRGB565.h"

//////////////////////////////////////////////////////////////////////
CPixelRGB565::CPixelRGB565()
{
}

CPixelRGB565::~CPixelRGB565()
{
}

void CPixelRGB565::ConvertByCover(unsigned char * inPixel)
{
	if (inPixel)
	{
		*inPixel = m_Mask[0];
		inPixel++;
		*inPixel = m_Mask[1];
	}
}

void CPixelRGB565::SideEffectColorChanged(void)
{
	CBasePixel::SideEffectColorChanged();

	const unsigned int bits565[] = {0xF800, 0x07E0, 0x001F}; // RGB
	// Caculate the mask bits
	unsigned int  wMask, wTemp;
	wTemp  = unsigned int (m_TargetB / 256. * 32);
	wMask  = wTemp & bits565[2];
	wTemp  = unsigned int (m_TargetG / 256. * 64);
	wTemp  = wTemp << 5;
	wMask += wTemp & bits565[1];
	wTemp  = unsigned int (m_TargetR / 256. * 32);
	wTemp  = wTemp << 11;
	wMask += wTemp & bits565[0];
	// Store the high byte and low byte seperately
	m_Mask[0] = wMask & 0xff;
	wMask     = wMask >> 8;
	m_Mask[1] = wMask & 0xff;
}