#include?“glut.h“
#include?
#include?
#include?


static?GLuint?texName;

GLfloat?angle=0;

GLuint?LoadBMPTo2DTexture（const?char?*pName?int?nSize）
{
	int	m_nSizeImage;
	BITMAPFILEHEADER?bmpFileHeader;
	BITMAPINFOHEADER?bmpInfoHeader;

	ifstream	bmpFile;
	bmpFile.open（pName?ios::binary）;	//?be?careful?here?must?be?binary?written.
	bmpFile.read（（char*）&bmpFileHeader?sizeof（BITMAPFILEHEADER））;
	bmpFile.read（（char*）&bmpInfoHeader?sizeof（BITMAPINFOHEADER））;

	if?（bmpFileHeader.bfType?!=?0x4D42）		//?it‘s?not?a?bitmap?file.
		return?0;

	unsigned?char?*pImage;
	int?nTexSize;
	int?nBytesPerPixel;

	nBytesPerPixel?=?bmpInfoHeader.biBitCount/8;
	nTexSize?=?nSize?*?nSize?*?nBytesPerPixel;
	pImage?=?new?unsigned?char[nTexSize];
	memset