//code from AviStates.h://This is the definition for the states of an avi//this header is included just in case a state value is passed to a header//that does not include the scene base class header#ifndef SYS_AVI_STATE#define SYS_AVI_STATE//AVI State Values //starts the avi from the first frame#define AVI_START 0//stops the avi at the current frame#define AVI_STOP 1 //makes the avi loop#define AVI_LOOP 2//makes the avi play once#define AVI_NO_LOOP 3//makes the avi play foreward#define AVI_FOREWARD 4//makes the avi play in reverse#define AVI_REVERSE 5//makes the avi continue after a stop#define AVI_CONTINUE 6#endif///////////////////////////////////////////////////////////////////code from AviLoader.h://Defines a class that loads, plays and creates a texture from an avi file#ifndef SYS_AVI_LOADER#define SYS_AVI_LOADER//INCLUDES#include <windows.h>// Header File For The OpenGL32 Library#include <gl\gl.h>// Header File For The GLaux Library#include <gl\glaux.h>//Microsoft stuff to load the avi#include <vfw.h>#pragma comment(lib, "vfw32.lib")//the defines for the avi states - ex start, stop#include "AviStates.h"class AVI{public:	AVI()	{		CurFrame = 0;		hdc = CreateCompatibleDC(0);		// Grab A Device Context For Our Dib		hdd = DrawDibOpen();		data = 0;		ElapsedTime = 0;		glGenTextures(1, &Texture);		scale = 1;		Play = true;		looping = true;		Direction = true;	}	~AVI()	{		//close all our stuff		DeleteObject(hBitmap);		DrawDibClose(hdd);		AVIStreamGetFrameClose(pgf);		AVIStreamRelease(pavi);		AVIFileExit();	}	//Loads an avi file	bool Load(LPCSTR filename);	//Updates the avi image	void Update(DWORD milliseconds);	//Sets the frame to a specific location	void SetFrame(int Frame);	//Sets the avi's speed	void SetSpeed(float PlaySpeed)	{		scale = PlaySpeed;	}	void SetState(int State);	//Returns a texture to the current frame of the avi	GLuint GenTex();	//The AVI texture	GLuint Texture;	private:	int CurFrame;	//AVI stuff - taken directly from NeHe's avi lesson	AVISTREAMINFO psi;	PAVISTREAM pavi;	PGETFRAME pgf;	BITMAPINFOHEADER bmih;	int lastframe;	UINT width;	UINT height;	//the texture data	char * pdata;	//the frames per milliseconds	int MillisPerFrame;	int ElapsedTime;	//TEXTURE BITMAP stuff	HDRAWDIB hdd;	HBITMAP hBitmap;	HDC hdc;	//pointer to resized image	unsigned char * data;	//Play: to play or not to play	bool Play;	//Looping: true for looping	bool looping;	//Defines the direction for play:	//True for foreward, false for backward	bool Direction;	//the speed of the avi	float scale;};#endif///////////////////////////////////////////////////////////////////code from AviLoader.cpp://implementation for avi stuff#include "AviLoader.h"bool AVI::Load(LPCSTR filename){	//opens the avi file library	AVIFileInit();	//Opens the avi stream	if(AVIStreamOpenFromFile(&pavi,filename,streamtypeVIDEO,0,OF_READ,NULL) != 0)	{		//give an error		MessageBox(NULL,"Failed to Open the AVI Stream","AVI Error",MB_OK | MB_ICONEXCLAMATION);		//and give up		return false;	}	//read the avi info	AVIStreamInfo(pavi,ψ,sizeof(psi));	//calculate resolution	width = psi.rcFrame.right - psi.rcFrame.left;	height = psi.rcFrame.bottom - psi.rcFrame.top;	//grab the last frame	lastframe = AVIStreamLength(pavi);	//grab the length of time of a frame	MillisPerFrame = AVIStreamSampleToTime(pavi,1);	//Set up our bitmap stuff to resize our texture	bmih.biSize = sizeof(BITMAPINFOHEADER);	bmih.biPlanes = 1;	bmih.biBitCount = 24;	bmih.biWidth = 256;	bmih.biHeight = 256;	//requested compression mode	bmih.biCompression = BI_RGB;	//Create the dib	hBitmap = CreateDIBSection(hdc,(BITMAPINFO*)(&bmih),DIB_RGB_COLORS,(void**)(&data),NULL,NULL);	//select our hbitmap into our dc	SelectObject(hdc,hBitmap);	//create a getframe object	pgf = AVIStreamGetFrameOpen(pavi,NULL);	//check to see if we screwed up	if(pgf == NULL)	{		MessageBox(NULL,"Failed to create a GetFrame object","AVI Error",MB_OK | MB_ICONEXCLAMATION);		return false;	}	//now we have to create the gl texture	glGenTextures(1, &Texture);	glBindTexture(GL_TEXTURE_2D, Texture);	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);	glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,256,256,0,GL_RGB,GL_UNSIGNED_BYTE,data);		//and we didnt mess up so were done - at least thats the idea	return true;}void AVI::SetFrame(int Frame){	if((Frame <= lastframe) && (Frame >= 0))	{		ElapsedTime = Frame*MillisPerFrame;		CurFrame = Frame;	}}void AVI::Update(DWORD milliseconds){if(Play){	if(Direction)	{		ElapsedTime += (DWORD)(milliseconds*scale);		CurFrame = int((float)ElapsedTime/(float)MillisPerFrame);		if(CurFrame >= lastframe)		{			if(looping)			{				ElapsedTime = 0;				CurFrame = 0;			}			else			{				CurFrame = lastframe -1;			}		}			}	else	{		ElapsedTime -= (int)(milliseconds*scale);		CurFrame = int((float)ElapsedTime/(float)MillisPerFrame);					if(CurFrame < 0)		{			if(looping)			{				ElapsedTime = (lastframe-1)*MillisPerFrame;				CurFrame = lastframe-1;			}			else			{				CurFrame = 0;			}		}			}	}}GLuint AVI::GenTex(){	LPBITMAPINFOHEADER lpbi;	//grab the tex data	//clamp the current frame	if(CurFrame < 0)		CurFrame = 0;	if(CurFrame >= lastframe)		CurFrame = lastframe - 1;	lpbi = (LPBITMAPINFOHEADER)AVIStreamGetFrame(pgf, CurFrame);	pdata = (char*)lpbi + lpbi->biSize + lpbi->biClrUsed*sizeof(RGBQUAD);	DrawDibDraw(hdd,hdc,0,0,256,256,lpbi,pdata,0,0,width,height,0);	//flip the colors	void * b = data;	__asm	{		mov ecx,256*256		mov ebx, b		label:			mov al,[ebx+0]			mov ah,[ebx+2]			mov [ebx+2],al			mov [ebx+0],ah			add ebx,3			dec ecx			jnz label	}	glBindTexture(GL_TEXTURE_2D, Texture);	//update our texture	glTexSubImage2D(GL_TEXTURE_2D,0,0,0,256,256,GL_RGB,GL_UNSIGNED_BYTE,data);	return Texture;}void AVI::SetState(int State){	if(State == AVI_START)		SetFrame(0);	if(State == AVI_STOP)		Play = false;	if(State == AVI_CONTINUE)		Play = true;	if(State == AVI_LOOP)		looping = true;	if(State == AVI_NO_LOOP)		looping = false;	if(State == AVI_FOREWARD)		Direction = true;		if(State == AVI_REVERSE)		Direction = false;	}