display.cpp

图像处理软件,功能比较基础

#include <stdio.h>
#include <windows.h>

unsigned char *PrepareShowBMP(unsigned char **pImage2d,short Row,short Col,
				PBITMAPFILEHEADER pbmpfileheader, RGBQUAD *rgbq,
				LPLOGPALETTE plgpl, PBITMAPINFO pbmi, short *iRow, 
				short *iCol)
{
	unsigned char *pImage;
	short i;
	//	pbmpfileheader = new BITMAPFILEHEADER;
	pbmpfileheader->bfType = (WORD)0x4d42;
	pbmpfileheader->bfSize = (long)Row*Col+54L+4*256L;
	pbmpfileheader->bfReserved1 = 0;
	pbmpfileheader->bfReserved2 = 0;
	pbmpfileheader->bfOffBits = 54+4*256;

//	RGBQUAD rgbq[256];

	for(i=0;i<256;i++) {
		rgbq[i].rgbRed	=	(unsigned char)i;
		rgbq[i].rgbBlue	=	(unsigned char)i;
		rgbq[i].rgbGreen=	(unsigned char)i;
		rgbq[i].rgbReserved	=	0;
	}

//	plgpl = (LPLOGPALETTE)new unsigned char[sizeof(LOGPALETTE) +
//				256*sizeof(PALETTEENTRY)];
	plgpl->palNumEntries = 256;
	plgpl->palVersion = 0x300;

	for(i=0;i<256;i++) {
		plgpl->palPalEntry[i].peRed = rgbq[i].rgbRed;
		plgpl->palPalEntry[i].peGreen = rgbq[i].rgbGreen;
		plgpl->palPalEntry[i].peBlue = rgbq[i].rgbBlue;
		plgpl->palPalEntry[i].peFlags = 0;
	}

/*	if((Col*8%32) 
		iCol = Col+4;
	else 
		iCol = Col;
*/
    *iCol=((Col+3)/4)*4;

//	pbmi = (PBITMAPINFO)new unsigned char[sizeof(BITMAPINFOHEADER)
//				+sizeof(RGBQUAD)*256];
	pbmi->bmiHeader.biSize = 40L;
	pbmi->bmiHeader.biWidth = Col;
	pbmi->bmiHeader.biHeight = Row;
	pbmi->bmiHeader.biPlanes = 1L;
	pbmi->bmiHeader.biBitCount = 8L;
	pbmi->bmiHeader.biCompression = 0L;
	pbmi->bmiHeader.biSizeImage = (long)Row*Col;
	pbmi->bmiHeader.biXPelsPerMeter = 0xbc;
	pbmi->bmiHeader.biYPelsPerMeter = 0xbc;
	pbmi->bmiHeader.biClrUsed = 256;
	pbmi->bmiHeader.biClrImportant = 0;

	memcpy(pbmi->bmiColors,rgbq,sizeof(RGBQUAD)*256);


	pImage = new unsigned char[(long)Row*(*iCol)];
	if(!pImage) return NULL;

	for(i=Row-1;i>=0;i--)
		memcpy(pImage+(long)(Row-i-1)*(*iCol),pImage2d[i],Col);

	return pImage;
}