rendered paste body/**************************
* Includes
*
**************************/
#include <cstdio>
#include <windows.h>
#include <gl/gl.h>
#include "Drawer.hpp"
/**************************
* Function Declarations
*
**************************/
LRESULT CALLBACK WndProc (HWND hWnd, UINT message,
WPARAM wParam, LPARAM lParam);
void EnableOpenGL (HWND hWnd, HDC *hDC, HGLRC *hRC);
void DisableOpenGL (HWND hWnd, HDC hDC, HGLRC hRC);
/**************************
* WinMain
*
**************************/
int WINAPI WinMain (HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int iCmdShow)
{
WNDCLASS wc;
HWND hWnd;
HDC hDC;
HGLRC hRC;
MSG msg;
BOOL bQuit = FALSE;
float theta = 0.0f;
/* register window class */
wc.style = CS_OWNDC;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor (NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH) GetStockObject (BLACK_BRUSH);
wc.lpszMenuName = NULL;
wc.lpszClassName = "GLSample";
RegisterClass (&wc);
/* create main window */
hWnd = CreateWindow("GLSample","OpenGL Sample",WS_CAPTION|WS_POPUPWINDOW|WS_VISIBLE,
96,96,640,480,NULL,NULL,hInstance,NULL);
/* enable OpenGL for the window */
EnableOpenGL (hWnd, &hDC, &hRC);
//Drawer(float fScreeMaxX,float fScreenMaxY,float fScreenMinX,float fScreenMinY,
// int iScreenX,int iScreenY,int iPixelSize);
Drawer Simple(1.0f,1.0f,-1.0f,-1.0f,64,64,16,16);
float fStartTime = (float)GetTickCount();
int iTime=0;
/* program main loop */
while (!bQuit)
{
/* check for messages */
if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
{
/* handle or dispatch messages */
if (msg.message == WM_QUIT)
{
bQuit = TRUE;
}
else
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
else
{
/* OpenGL animation code goes here */
glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT);
glPushMatrix ();
//glRotatef (theta, 0.0f, 0.0f, 1.0f);
glRotatef (theta,1.0f,1.0f,0.0f);
//glBegin (GL_LINE_STRIP);
Simple.Draw(iTime);
//glEnd ();
glPopMatrix ();
SwapBuffers (hDC);
//theta += 1.0f;
theta = 45.0f;
//Sleep (50);
iTime++;
/*
if(iTime%180 == 0)
{
char cBuffer[100];
sprintf(cBuffer,"%f",1000.0f/((GetTickCount() - fStartTime)/180.0f) );
MessageBox(NULL,cBuffer,"Hello",MB_OK);
fStartTime = GetTickCount();
}
*/
}
}
/* shutdown OpenGL */
DisableOpenGL (hWnd, hDC, hRC);
/* destroy the window explcitly */
DestroyWindow (hWnd);
return msg.wParam;
}
/********************
* Window Procedure
*
********************/
LRESULT CALLBACK WndProc (HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
switch (message)
{
case WM_CREATE:
return 0;
case WM_CLOSE:
PostQuitMessage (0);
return 0;
case WM_DESTROY:
return 0;
case WM_KEYDOWN:
switch (wParam)
{
case VK_ESCAPE:
PostQuitMessage(0);
return 0;
}
return 0;
default:
return DefWindowProc (hWnd, message, wParam, lParam);
}
}
/*******************
* Enable OpenGL
*
*******************/
void EnableOpenGL (HWND hWnd, HDC *hDC, HGLRC *hRC)
{
PIXELFORMATDESCRIPTOR pfd;
int iFormat;
/* get the device context (DC) */
*hDC = GetDC (hWnd);
/* set the pixel format for the DC */
ZeroMemory (&pfd, sizeof (pfd));
pfd.nSize = sizeof (pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW |
PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cDepthBits = 16;
pfd.iLayerType = PFD_MAIN_PLANE;
iFormat = ChoosePixelFormat (*hDC, &pfd);
SetPixelFormat (*hDC, iFormat, &pfd);
/* create and enable the render context (RC) */
*hRC = wglCreateContext( *hDC );
wglMakeCurrent( *hDC, *hRC );
}
/******************
* Disable OpenGL
*
******************/
void DisableOpenGL (HWND hWnd, HDC hDC, HGLRC hRC)
{
wglMakeCurrent (NULL, NULL);
wglDeleteContext (hRC);
ReleaseDC (hWnd, hDC);
}
/**
Header starts
**/
#ifndef drawer_hpp
#define drawer_hpp
#include <gl/gl.h>
#include <math.h>
class Drawer
{
private:
float fMinX;
float fMinY;
float fHeight;
float fWidth;
float fDistX;
float fDistY;
int iScreenHeight;
int iScreenWidth;
float fRadian;
int iOriginX;
int iOriginY;
public:
//Constructor
Drawer(float fScreeMaxX,float fScreenMaxY,float fScreenMinX,float fScreenMinY,
int iScreenX,int iScreenY,int iCenterX,int iCenterY);
//Formulas
float Wrangle(float fX, float fY,float fT);
//Drawers
void Draw(int iT);
};
Drawer::Drawer(float fScreenMaxX,float fScreenMaxY,float fScreenMinX,float fScreenMinY,int iScreenX,
int iScreenY,int iCenterX,int iCenterY)
{
fMinX = fScreenMinX;
fMinY = fScreenMinY;
fHeight = fScreenMaxY - fScreenMinY;
fWidth = fScreenMaxX - fScreenMinX;
fDistX = fWidth/iScreenX;
fDistY = fHeight/iScreenY;
iScreenHeight = iScreenX;
iScreenWidth = iScreenY;
iOriginX = iCenterX;
iOriginY = iCenterX;
fRadian = 180.0f/ 3.14159265f;
}
float Drawer::Wrangle(float fX, float fY,float fT)
{
fX /= (fRadian/100);
fY /= (fRadian/100);
fT /= (fRadian/5);
float fDistance = sqrt(fX*fX + fY*fY);
float fCircular = cos( fDistance-fT)/40.0f;
float fDamp = fDistance/40.0f;
if(fDamp < 0.5f)
fDamp = 0.5f;
//float fWave = cos(fX+fT)/40.0f;
return fCircular/(fDamp);
}
void Drawer::Draw(int iT)
{
int i = 0;
glColor3f(0.0f,0.0f,1.0f);
while(i < iScreenHeight - 1)
{
float fResult[2];
int j = 0;
//glColor3f(0.0f,0.0f,(float)i/128.0f);
glBegin(GL_TRIANGLE_STRIP);
{
fResult[0] = Wrangle(i - iOriginX + 1,- iOriginY,iT);
fResult[1] = Wrangle(i - iOriginX ,- iOriginY,iT);
glColor3f(0.0f,0.0f,0.75f - fResult[0]*10);
glVertex3f(fMinX+((float)(i+1) * fDistX),fMinY + ((float)j*fDistY),fResult[0]);
glColor3f(0.0f,0.0f,0.75f - fResult[1]*10);
glVertex3f(fMinX + ((float)i * fDistX),fMinY + ((float)j * fDistY), fResult[1]);
j=1;
while(j < iScreenWidth)
{
fResult[0] = Wrangle(i - iOriginX + 1,j - iOriginY,iT);
fResult[1] = Wrangle(i - iOriginX ,j - iOriginY,iT);
glColor3f(0.0f,0.0f,0.75f - fResult[0]*10);
glVertex3f(fMinX + ((float)(i+1) * fDistX),fMinY + ((float)j * fDistY), fResult[0]);
glColor3f(0.0f,0.0f,0.75f - fResult[1]*10);
glVertex3f(fMinX + ((float)i * fDistX),fMinY + ((float)j * fDistY), fResult[1]);
j++;
}
}
glEnd();
i++;
}
}
#endif