mirror of
https://github.com/reactos/reactos.git
synced 2024-11-20 14:30:57 +00:00
328 lines
9.8 KiB
C
328 lines
9.8 KiB
C
#include <windows.h>
|
|
#include <scrnsave.h>
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <GL/gl.h>
|
|
#include <GL/glu.h>
|
|
#include <GL/glext.h>
|
|
#include "resource.h"
|
|
|
|
HINSTANCE hInstance; // Holds The Instance Of The Application
|
|
|
|
GLuint texture[3]; //stores texture objects and display list
|
|
|
|
LPCTSTR registryPath = ("Software\\Microsoft\\ScreenSavers\\Butterflies");
|
|
BOOL dRotate;
|
|
|
|
|
|
struct object // Create A Structure Called Object
|
|
{
|
|
int tex; // Integer Used To Select Our Texture
|
|
float x; // X Position
|
|
float y; // Y Position
|
|
float z; // Z Position
|
|
float yi; // Y Increase Speed (Fall Speed)
|
|
float spinz; // Z Axis Spin
|
|
float spinzi; // Z Axis Spin Speed
|
|
float flap; // Flapping Triangles :)
|
|
float fi; // Flap Direction (Increase Value)
|
|
};
|
|
|
|
struct object obj[50];
|
|
//object obj[50]; // Create 50 Objects Using The Object Structure
|
|
|
|
void SetDefaults()
|
|
{
|
|
dRotate = TRUE;
|
|
}
|
|
|
|
void ReadRegistry(){
|
|
LONG result;
|
|
HKEY skey;
|
|
DWORD valtype, valsize, val;
|
|
|
|
SetDefaults();
|
|
|
|
result = RegOpenKeyEx(HKEY_CURRENT_USER, registryPath, 0, KEY_READ, &skey);
|
|
if(result != ERROR_SUCCESS)
|
|
return;
|
|
|
|
valsize=sizeof(val);
|
|
|
|
result = RegQueryValueEx(skey, "Rotate", 0, &valtype, (LPBYTE)&val, &valsize);
|
|
if(result == ERROR_SUCCESS)
|
|
dRotate = val;
|
|
RegCloseKey(skey);
|
|
}
|
|
|
|
void WriteRegistry(){
|
|
LONG result;
|
|
HKEY skey;
|
|
DWORD val, disp;
|
|
|
|
result = RegCreateKeyEx(HKEY_CURRENT_USER, registryPath, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &skey, &disp);
|
|
if(result != ERROR_SUCCESS)
|
|
return;
|
|
|
|
val = dRotate;
|
|
RegSetValueEx(skey, "Rotate", 0, REG_DWORD, (CONST BYTE*)&val, sizeof(val));
|
|
|
|
RegCloseKey(skey);
|
|
}
|
|
|
|
void SetObject(int loop) // Sets The Initial Value Of Each Object (Random)
|
|
{
|
|
obj[loop].tex=rand()%3; // Texture Can Be One Of 3 Textures
|
|
obj[loop].x=rand()%34-17.0f; // Random x Value From -17.0f To 17.0f
|
|
obj[loop].y=18.0f; // Set y Position To 18 (Off Top Of Screen)
|
|
obj[loop].z=-((rand()%30000/1000.0f)+10.0f); // z Is A Random Value From -10.0f To -40.0f
|
|
obj[loop].spinzi=(rand()%10000)/5000.0f-1.0f; // spinzi Is A Random Value From -1.0f To 1.0f
|
|
obj[loop].flap=0.0f; // flap Starts Off At 0.0f;
|
|
obj[loop].fi=0.05f+(rand()%100)/1000.0f; // fi Is A Random Value From 0.05f To 0.15f
|
|
obj[loop].yi=0.001f+(rand()%1000)/10000.0f; // yi Is A Random Value From 0.001f To 0.101f
|
|
}
|
|
|
|
void LoadGLTextures() // Creates Textures From Bitmaps In The Resource File
|
|
{
|
|
HBITMAP hBMP; // Handle Of The Bitmap
|
|
BITMAP BMP; // Bitmap Structure
|
|
int loop;
|
|
|
|
// The ID Of The 3 Bitmap Images We Want To Load From The Resource File
|
|
byte Texture[]={ IDB_BUTTERFLY1, IDB_BUTTERFLY2, IDB_BUTTERFLY3 };
|
|
|
|
glGenTextures(sizeof(Texture), &texture[0]); // Generate 3 Textures (sizeof(Texture)=3 ID's)
|
|
for (loop=0; loop<sizeof(Texture); loop++) // Loop Through All The ID's (Bitmap Images)
|
|
{
|
|
hBMP=(HBITMAP)LoadImage(GetModuleHandle(NULL),MAKEINTRESOURCE(Texture[loop]), IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION);
|
|
if (hBMP) // Does The Bitmap Exist?
|
|
{ // If So...
|
|
GetObject(hBMP,sizeof(BMP), &BMP); // Get The Object
|
|
// hBMP: Handle To Graphics Object
|
|
// sizeof(BMP): Size Of Buffer For Object Information
|
|
// Buffer For Object Information
|
|
glPixelStorei(GL_UNPACK_ALIGNMENT,4); // Pixel Storage Mode (Word Alignment / 4 Bytes)
|
|
glBindTexture(GL_TEXTURE_2D, texture[loop]); // Bind Our Texture
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); // Linear Filtering
|
|
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_LINEAR); // Mipmap Linear Filtering
|
|
|
|
// Generate Mipmapped Texture (3 Bytes, Width, Height And Data From The BMP)
|
|
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, BMP.bmWidth, BMP.bmHeight, GL_BGR_EXT, GL_UNSIGNED_BYTE, BMP.bmBits);
|
|
}
|
|
}
|
|
}
|
|
|
|
HGLRC InitOGLWindow(HWND hWnd)
|
|
{
|
|
HDC hDC = GetDC(hWnd);
|
|
HGLRC hRC = 0;
|
|
PIXELFORMATDESCRIPTOR pfd;
|
|
int nFormat;
|
|
|
|
ZeroMemory(&pfd, sizeof(PIXELFORMATDESCRIPTOR));
|
|
|
|
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
|
|
pfd.nVersion = 1;
|
|
pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER;
|
|
pfd.cColorBits = 24;
|
|
pfd.cDepthBits = 24;
|
|
|
|
nFormat = ChoosePixelFormat(hDC, &pfd);
|
|
DescribePixelFormat(hDC, nFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
|
|
SetPixelFormat(hDC, nFormat, &pfd);
|
|
|
|
hRC = wglCreateContext(hDC);
|
|
wglMakeCurrent(hDC, hRC);
|
|
|
|
ReleaseDC(hWnd, hDC);
|
|
|
|
return hRC;
|
|
}
|
|
|
|
void InitOpenGL(GLsizei width, GLsizei height)
|
|
{
|
|
int loop;
|
|
|
|
if (height==0) // Prevent A Divide By Zero By
|
|
{
|
|
height=1; // Making Height Equal One
|
|
}
|
|
|
|
glViewport(0,0,width,height); // Reset The Current Viewport
|
|
|
|
glMatrixMode(GL_PROJECTION); // Select The Projection Matrix
|
|
glLoadIdentity(); // Reset The Projection Matrix
|
|
|
|
// Calculate The Aspect Ratio Of The Window
|
|
gluPerspective (45.0f, (GLfloat)(width)/(GLfloat)(height),1.0f, 1000.0f);
|
|
|
|
glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix
|
|
glLoadIdentity();
|
|
// Start Of User Initialization
|
|
LoadGLTextures(); // Load The Textures From Our Resource File
|
|
|
|
glClearColor (0.0f, 0.0f, 0.0f, 0.5f); // Black Background
|
|
glClearDepth (1.0f); // Depth Buffer Setup
|
|
glDepthFunc (GL_LEQUAL); // The Type Of Depth Testing (Less Or Equal)
|
|
glDisable(GL_DEPTH_TEST); // Disable Depth Testing
|
|
glShadeModel (GL_SMOOTH); // Select Smooth Shading
|
|
glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Set Perspective Calculations To Most Accurate
|
|
glEnable(GL_TEXTURE_2D); // Enable Texture Mapping
|
|
glBlendFunc(GL_ONE,GL_SRC_ALPHA); // Set Blending Mode (Cheap / Quick)
|
|
glEnable(GL_BLEND);
|
|
|
|
|
|
for (loop=0; loop<50; loop++) // Loop To Initialize 50 Objects
|
|
{
|
|
SetObject(loop); // Call SetObject To Assign New Random Values
|
|
}
|
|
|
|
}
|
|
|
|
void Display()
|
|
{
|
|
int loop;
|
|
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer
|
|
|
|
for (loop=0; loop<50; loop++) // Loop Of 50 (Draw 50 Objects)
|
|
{
|
|
glLoadIdentity (); // Reset The Modelview Matrix
|
|
glBindTexture(GL_TEXTURE_2D, texture[obj[loop].tex]); // Bind Our Texture
|
|
glTranslatef(obj[loop].x,obj[loop].y,obj[loop].z); // Position The Object
|
|
glRotatef(45.0f,1.0f,0.0f,0.0f); // Rotate On The X-Axis
|
|
if (dRotate)
|
|
{
|
|
glRotatef((obj[loop].spinz),0.0f,0.0f,1.0f); // Spin On The Z-Axis
|
|
}
|
|
glBegin(GL_TRIANGLES); // Begin Drawing Triangles
|
|
// First Triangle _____
|
|
glTexCoord2f(1.0f,1.0f); glVertex3f( 1.0f, 1.0f, 0.0f); // (2)| / (1)
|
|
glTexCoord2f(0.0f,1.0f); glVertex3f(-1.0f, 1.0f, obj[loop].flap); // | /
|
|
glTexCoord2f(0.0f,0.0f); glVertex3f(-1.0f,-1.0f, 0.0f); // (3)|/
|
|
|
|
// Second Triangle
|
|
glTexCoord2f(1.0f,1.0f); glVertex3f( 1.0f, 1.0f, 0.0f); // /|(1)
|
|
glTexCoord2f(0.0f,0.0f); glVertex3f(-1.0f,-1.0f, 0.0f); // / |
|
|
glTexCoord2f(1.0f,0.0f); glVertex3f( 1.0f,-1.0f, obj[loop].flap); // (2)/____|(3)
|
|
|
|
glEnd(); // Done Drawing Triangles
|
|
|
|
obj[loop].y-=obj[loop].yi; // Move Object Down The Screen
|
|
obj[loop].spinz+=obj[loop].spinzi; // Increase Z Rotation By spinzi
|
|
obj[loop].flap+=obj[loop].fi; // Increase flap Value By fi
|
|
|
|
if (obj[loop].y<-18.0f) // Is Object Off The Screen?
|
|
{
|
|
SetObject(loop); // If So, Reassign New Values
|
|
}
|
|
|
|
if ((obj[loop].flap>1.0f) || (obj[loop].flap<-1.0f)) // Time To Change Flap Direction?
|
|
{
|
|
obj[loop].fi=-obj[loop].fi; // Change Direction By Making fi = -fi
|
|
}
|
|
}
|
|
|
|
Sleep(15); // Create A Short Delay (15 Milliseconds)
|
|
|
|
glFlush ();
|
|
|
|
}
|
|
|
|
BOOL AboutProc(HWND hdlg, UINT msg, WPARAM wpm, LPARAM lpm){
|
|
|
|
switch(msg){
|
|
case WM_CTLCOLORSTATIC:
|
|
if(((HWND)lpm == GetDlgItem(hdlg, WEBPAGE1)) || ((HWND)lpm == GetDlgItem(hdlg, WEBPAGE2)))
|
|
{
|
|
SetTextColor((HDC)wpm, RGB(0,0,255));
|
|
SetBkColor((HDC)wpm, (COLORREF)GetSysColor(COLOR_3DFACE));
|
|
return((int)GetSysColorBrush(COLOR_3DFACE));
|
|
}
|
|
break;
|
|
case WM_COMMAND:
|
|
switch(LOWORD(wpm)){
|
|
case IDOK:
|
|
EndDialog(hdlg, LOWORD(wpm));
|
|
break;
|
|
case WEBPAGE1:
|
|
ShellExecute(NULL, "open", "http://nehe.gamedev.net", NULL, NULL, SW_SHOWNORMAL);
|
|
break;
|
|
case WEBPAGE2:
|
|
ShellExecute(NULL, "open", "http://www.thaputer.com", NULL, NULL, SW_SHOWNORMAL);
|
|
break;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
LRESULT WINAPI ScreenSaverProc(HWND hWnd, UINT message,
|
|
WPARAM wParam, LPARAM lParam)
|
|
{
|
|
static HGLRC hRC;
|
|
static DWORD timer = 1;
|
|
HDC hDC;
|
|
RECT WindowRect;
|
|
int width;
|
|
int height;
|
|
|
|
switch (message)
|
|
{
|
|
case WM_CREATE:
|
|
ReadRegistry();
|
|
hRC = InitOGLWindow(hWnd);
|
|
GetClientRect (hWnd, &WindowRect);
|
|
width = WindowRect.right - WindowRect.left;
|
|
height = WindowRect.bottom - WindowRect.top;
|
|
InitOpenGL(width,height);
|
|
SetTimer(hWnd, timer, 5, NULL);
|
|
break;
|
|
case WM_TIMER:
|
|
hDC = GetDC(hWnd);
|
|
Display();
|
|
SwapBuffers(hDC);
|
|
ReleaseDC(hWnd, hDC);
|
|
break;
|
|
case WM_DESTROY:
|
|
wglMakeCurrent(NULL, NULL);
|
|
wglDeleteContext(hRC);
|
|
break;
|
|
}
|
|
|
|
return DefScreenSaverProc(hWnd, message, wParam, lParam);
|
|
}
|
|
|
|
BOOL WINAPI ScreenSaverConfigureDialog(HWND hDlg, UINT message,
|
|
WPARAM wParam, LPARAM lParam)
|
|
{
|
|
switch (message)
|
|
{
|
|
case WM_INITDIALOG:
|
|
ReadRegistry();
|
|
CheckDlgButton(hDlg, ROTATE, dRotate);
|
|
return TRUE;
|
|
case WM_COMMAND:
|
|
switch (LOWORD(wParam))
|
|
{
|
|
case IDOK:
|
|
dRotate = (IsDlgButtonChecked(hDlg, ROTATE) == BST_CHECKED);
|
|
WriteRegistry();
|
|
EndDialog(hDlg, TRUE);
|
|
return TRUE;
|
|
case IDCANCEL:
|
|
EndDialog(hDlg, TRUE);
|
|
break;
|
|
case IDABOUT:
|
|
DialogBox(hInstance, MAKEINTRESOURCE(IDD_DLG_ABOUT), hDlg, (DLGPROC)AboutProc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL WINAPI RegisterDialogClasses(HANDLE hInst)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|