#include #include #include #include #include #include #include //#include //#include //#include //#include #include #define GLWIDTH 1600 #define GLHEIGHT 1200 #define WIDTH 1600 #define HEIGHT 1200 //#define CYL_DIA 92.5 #define BORE 92.5 #define STROKE 89 //#define ROD_LEN #define ROD_BE 53 #define ROD_SE 22 int windowPosX = 0; int windowPosY = 0; int windowWidth = 1600; int windowHeight = 1200; int w = 1600; int h = 1200; GLUquadricObj *quadratic[17]; double Eye_X = 0; double Eye_Y = 0.0; double Eye_Z = -1000; double Eye_dist = 100; double Cen_X = 0; double Cen_Y = 0; double Cen_Z = 0; int crank_angle = 0; struct timeval starttime,endtime; char scorestring[16]; int spark_cylinder = 0; float y_rotation = 10; float x_rotation = -90; float y_angle = 11; int fullscreen = 0; //char cycle[5] = {'P', 'E', 'I', 'C', '\0'}; //char cycle_chars[5] = {'P', 'E', 'C', 'I', '\0'}; char cycle_chars[] = "PEIC"; //unsigned char cycle_order[4] = {0, 1, 2, 3}; int cycle_cur[4] = {0, 1, 3, 2}; float cyl_x[] = {(BORE*3)+20, (BORE)+10, (BORE*-1), (BORE*-3)-10}; float rod_x[] = {(BORE*3)+20+ROD_SE, (BORE)+10, (BORE*-1), (BORE*-3)-10-ROD_SE}; void Run_GL(void); static void display(void); static void reshape(int w, int h); //static float Calc_Above_BDC(int piston, int crank_angle); static float Calc_Below_TDC(int piston, int crank_angle); static void Frames(double fps); static void Cycle(int crank_angle); static void special(int key, int x, int y); static void mouse(int button, int state, int x, int y); static void mouse_pos(int x, int y); void keyboard(unsigned char key, int x, int y); int main(int argc, char **argv){ glutInit(&argc,argv); Run_GL(); return 0; } void Run_GL(void){ int i = 0; glutInitDisplayMode (GLUT_DOUBLE| GLUT_RGB | GLUT_DEPTH); // glutGameModeString( "1600x1200" ); //glutEnterGameMode(); glutInitWindowSize(GLWIDTH, GLHEIGHT); glutInitWindowPosition(0, 0); glutCreateWindow("bla"); //glutEnterGameMode(); //glutRedisplayFunc(display); glutDisplayFunc(display); glutReshapeFunc(reshape); glutIgnoreKeyRepeat(0); glutSpecialFunc(special); glutKeyboardFunc(keyboard); //glutMouseFunc(mouse); glutPassiveMotionFunc(mouse_pos); while(i<17){ quadratic[i]=gluNewQuadric(); i++; } //Eye_Z=Eye_dist*sin(y_angle); //Eye_X=Eye_dist*cos(y_angle); //glEnable(GL_DEPTH_TEST); glutMainLoop(); } static void display(void){ int i = 0; //float j = 1; //float cyl_x[] = {(GLWIDTH-200)/4*-2, (GLWIDTH-200)/4*-1, (GLWIDTH-200)/4*1, (GLWIDTH-200)/4*2}; //float cyl_x[] = {BORE*-2-20, BORE*-1-10, 0, BORE+10}; //float cyl_x[] = {100, 110+BORE, 120+BORE*2, 130+BORE*3}; //float cyl_x[] = {2*BORE, BORE, 0, -1*BORE}; //static struct timespec ts; //ts.tv_sec = 0; //ts.tv_nsec = 50000000; static double time1 = 2; static double frame_c = 0; static double fps = 0; //float cyl_x[] = {(BORE*3)+20, (BORE)+10, (BORE*-1), (BORE*-3)-10}; //float cyl_y[] = {0, 0, 0, 0}; //float pist_x[] = {(BORE)*3+20, (BORE)+10, (BORE)*-1, (BORE)*-3-10}; //float cran_x[] = { float mm_above_bdc = STROKE; GLint params[4]; //if( IsExtensionSupported( "GL_ARB_vertex_buffer_object" ) ){ sleep(1); printf("OpenGL Version: %s\n", glGetString(GL_VERSION)); glGetIntegerv(GL_VBO_FREE_MEMORY_ATI, params); //glGetIntegerv(TEXTURE_FREE_MEMORY_ATI, params); //glGetIntegerv(RENDERBUFFER_FREE_MEMORY_ATI, ¶ms[0]); //glGetIntegerv(0x87FB, ¶ms[0]); //glGetIntegerv(VBO_FREE_MEMORY_ATI, ¶ms[0]); printf("total free: %d\n", params[0]); //printf("largest free block: %d\n", params[1]); //printf("auxiliary free: %d\n", params[2]); //printf("aux largest free block: %d\n", params[3]); //} /* VBO_FREE_MEMORY_ATI 0x87FB TEXTURE_FREE_MEMORY_ATI 0x87FC RENDERBUFFER_FREE_MEMORY_ATI 0x87FD #ifndef GL_ATI_meminfo #define GL_VBO_FREE_MEMORY_ATI 0x87FB #define GL_TEXTURE_FREE_MEMORY_ATI 0x87FC #define GL_RENDERBUFFER_FREE_MEMORY_ATI 0x87FD #endif #ifndef GL_ATI_meminfo #define GL_ATI_meminfo 1 #endif param[0] - total memory free in the pool param[1] - largest available free block in the pool param[2] - total auxiliary memory free param[3] - largest auxiliary free block */ //float x_cyc_coord[] = { //float y_cyc_coord[] = { //GLUquadricObj *quadratic; //GLfloat LightAmbient[]= { 0.5, 0.5, 0.5, 1.0 }; // Ambient Light Values //GLfloat LightDiffuse[]= { 1.0, 1.0, 1.0, 1.0 }; // Diffuse Light Values //GLfloat LightPosition[]= { 0.0, 0.0, 2.0, 1.0 }; // Light Position glClearColor (0.0,0.0,0.0,0.0); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); gluLookAt ( Eye_X, Eye_Y, Eye_Z, Cen_X, Cen_Y, Cen_Z, 0.0, 0.1, 0.0); // gluLookAt ( Eye_X, Eye_Y, Eye_Z, Eye_X, Eye_Y, 0.0, 0.0, 0.1, 0.0); /* for(i=0; i<4; i++){ glLoadIdentity(); glTranslatef(cyl_x[i],cyl_y[i],3000.0); glRotatef(90,1.0,0.0,0.0); //quadratic=gluNewQuadric(); gluQuadricNormals(quadratic[i], GLU_SMOOTH); glColor3f(j,0.0,0.0); j -= .25; gluCylinder(quadratic[i],100.0,100.0,200.0,128,128); } */ glEnable(GL_DEPTH_TEST); glEnable (GL_BLEND); glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); //glDepthMask(GL_TRUE); for(i=0; i<4; i++){ //spark? if(i == spark_cylinder){ glPushMatrix(); glColor4f(0.75,0.65,0.75, 0.77); glTranslatef(cyl_x[i], STROKE*2, 800); //y rotation // glRotatef(y_rotation,0.0,1.0,0.0); glRotatef(x_rotation, 1, 0, 0.0); glRotatef(y_rotation,0.0,0.0,1.0); gluCylinder(quadratic[i],BORE/8,BORE/16,STROKE/2,128,128); glPopMatrix(); } //gluSphere( glPushMatrix(); glColor4f(0.95,0.95,0.95, 0.77); glTranslatef(cyl_x[i], STROKE*2+STROKE/2, 800); glRotatef(x_rotation, 1, 0, 0.0); glRotatef(y_rotation,0.0,0.0,1.0); gluCylinder(quadratic[i+1],BORE/12,BORE/12,STROKE/8,128,128); glPopMatrix(); //draw piston glPushMatrix(); glColor4f(0.95,0.05,0.05, 0.77); mm_above_bdc = STROKE - Calc_Below_TDC(i, crank_angle); //mm_above_bdc = Calc_Above_BDC(i, crank_angle); glTranslatef(cyl_x[i], mm_above_bdc, 800.5); // glRotatef(y_rotation,0.0,1.0,0.0); glRotatef(x_rotation, 1, 0, 0.0); glRotatef(y_rotation,0.0,0.0,1.0); gluCylinder(quadratic[5+i],BORE-1,BORE-1,STROKE,256,256); glPopMatrix(); //draw cylinder/bore glPushMatrix(); glColor4f(0.25,0.25,0.25, 0.77); //glRotatef(90, 1, 0, 0.0); glTranslatef(cyl_x[i], 0, 800); //glTranslatef(GLWIDTH/2-(i*(BORE)), 0, 1000.0); // glRotatef(y_rotation,0.0,1.0,0.0); glRotatef(x_rotation, 1, 0, 0.0); glRotatef(y_rotation,0.0,0.0,1.0); gluCylinder(quadratic[9+i],BORE,BORE,STROKE*2,256,256); glPopMatrix(); // glTranslatef(-128, 0, 8000.0); // glRotatef(90,cyl_x[i],cyl_y[i],800.0); //draw piston /* glPushMatrix(); glColor4f(0.45,0.45,0.45, .85); mm_above_bdc = STROKE - Calc_Below_TDC(i, crank_angle); //mm_above_bdc = Calc_Above_BDC(i, crank_angle); glTranslatef(pist_x[i], mm_above_bdc, 801); glRotatef(-90, 1, 0, 0.0); gluCylinder(quadratic[i],BORE-2,BORE-2,STROKE*2,256,256); glPopMatrix(); */ //draw connecting rods glPushMatrix(); glColor4f(0.25,0.85,0.25, 0.77); glTranslatef(rod_x[i], mm_above_bdc-STROKE/2, 800+BORE/2); glRotatef(x_rotation, 0, 1, 0.0); // glRotatef(-90,1.0,0.0,0.0); glBegin(GL_QUADS); glVertex3f(0, 170/2, 0.0); glVertex3f(ROD_SE, 170/2, 0.0); glVertex3f(0, 170/2*-1, 0.0); glVertex3f(ROD_BE, 170/2*-1, 0.0); /* glVertex3f(ROD_SE/2*-1, 170/2, 0.0); glVertex3f(ROD_SE/2, 170/2, 0.0); glVertex3f(ROD_BE/2*-1, 170/2*-1, 0.0); glVertex3f(ROD_BE/2, 170/2*-1, 0.0); */ glEnd(); //gluCylinder(quadratic[12+i],ROD_BE,ROD_SE,170,256,256); glPopMatrix(); } //draw crank glPushMatrix(); glColor4f(0.25,0.25,0.25, 0.77); glTranslatef((BORE*10/2), STROKE*-1, 800); glRotatef(x_rotation, 0, 1, 0.0); glRotatef(crank_angle,0.0,0.0,1.0); gluCylinder(quadratic[16],ROD_BE,ROD_BE,BORE*10,256,256); glPopMatrix(); // if(crank_angle<360) // crank_angle++; // else // crank_angle = 0; // glLoadIdentity(); // gluLookAt ( Eye_X, Eye_Y, Eye_Z, Eye_X, Eye_Y, 0.0, 0.0, 0.1, 0.0); frame_c++; //frame counter if(time1 > 1){ gettimeofday(&endtime, NULL); time1=((double)(endtime.tv_sec*1000000-starttime.tv_sec*1000000+endtime.tv_usec-starttime.tv_usec))/1000000; fps = frame_c / time1; gettimeofday(&starttime, NULL); frame_c = 0; }else{ gettimeofday(&endtime, NULL); time1=((double)(endtime.tv_sec*1000000-starttime.tv_sec*1000000+endtime.tv_usec-starttime.tv_usec))/1000000; } //glDepthMask(GL_FALSE); glDisable(GL_DEPTH_TEST); //glDepthMask(GL_FALSE); //(GL_BLEND); //Cycle(crank_angle); Frames(fps); //sleep(1); if(crank_angle<359) crank_angle++; else crank_angle = 0; if(crank_angle % 180 == 0){ for(i=0; i<4; i++){ if(cycle_cur[i] < 3) cycle_cur[i]++; else cycle_cur[i] = 0; } } Cycle(crank_angle); // if(crank_angle<360) // crank_angle++; // else // crank_angle = 0; //glRotatef(-90, 1, 0, 0.0); glutSwapBuffers(); glutPostRedisplay(); } static float Calc_Below_TDC(int piston, int crank_angle){ //power exhaust intake compression //all that matters here is the position of the piston //crank spins clockwise //0deg = 1+4 180deg = 2+3 tdc /* const float multed = 180*STROKE; int opt = 0; opt = (piston == 0 || piston == 3) ? 1 : 0; if(crank_angle < 180){ if(opt) return ((float)crank_angle/multed); return ((float)(180-crank_angle)/multed); }else{ if(opt) return ((float)(360-crank_angle)/multed); return ((float)(crank_angle-180)/multed); } */ if(piston == 0 || piston == 3){ if(crank_angle < 180){ //subtract from tdc return ((float)crank_angle/180*STROKE); }else{ //add to tdc return ((float)(360-crank_angle)/180*STROKE); //return ((float)crank_angle/180*STROKE*-1); } }else{ //return ((float)(360-crank_angle)/180*STROKE*-1); //0 == 1*STROKE here 180 == 0 //if(crank_angle < 180){ //add to tdc // return ((float)180/crank_angle*STROKE); //}else{ //subtract from tdc // return ((float)(360-crank_angle)/180*STROKE); //} if(crank_angle < 180){ return ((float)(180-crank_angle)/180*STROKE); }else{ return ((float)(crank_angle-180)/180*STROKE); } } } static void reshape(int w, int h){ //GLfloat aspect = (GLfloat)WIDTH / (GLfloat)(HEIGHT+LEGEND_H+4.4);; GLfloat aspect = w/h; //GLfloat aspect = (GLfloat)WIDTH / (GLfloat)(HEIGHT); glViewport (0, 0, (GLsizei)w, (GLsizei)h); glMatrixMode (GL_PROJECTION); glLoadIdentity (); gluPerspective (60, (GLfloat)w / (GLfloat)h/aspect, 0.25 , 5000.0); glMatrixMode (GL_MODELVIEW); } static void Frames(double fps){ (void)memset(scorestring, '\0', 16); //int empty = 0; (void)sprintf(scorestring, "%.02lf", fps); float pos[3] = {-1, 10, -25}; int i = 0; glPushMatrix(); glLoadIdentity(); pos[0]+=0.1; glColor3f(1.0, 0.0, 0.0); glRasterPos3f(pos[0], pos[1], pos[2]); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'F'); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'P'); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'S'); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'('); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'c'); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'a'); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'p'); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'2'); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'0'); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,')'); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,':'); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); for(i = 0; scorestring[i] != '\0'; i++){ glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, scorestring[i]); } glPopMatrix(); } static void Cycle(int crank_angle){ int i = 0; int j = 0; (void)memset(scorestring, '\0', 16); for(i=0; i<4; i++){ j = cycle_cur[i]; if(j == 0){ //Make A Spark spark_cylinder = i; (void)strcat(scorestring, "P"); }else if(j==1){ (void)strcat(scorestring, "E"); }else if(j==2){ (void)strcat(scorestring, "I"); }else{ (void)strcat(scorestring, "C"); } //glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); //glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); } //(void)sprintf(scorestring, "%c", ); // for(i=0; i<4; i++){ glPushMatrix(); glLoadIdentity(); glColor3f(1.0, 0.0, 0.0); glRasterPos3f(-3, 5, -25); //glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); for(i = 0; scorestring[i] != '\0'; i++){ glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, scorestring[i]); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,' '); } /* j = (int)cycle_cur[i]; if(j == 0){ glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, 'P'); }else if(j==1){ glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, 'E'); }else if(j==2){ glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, 'I'); }else{ glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, 'C'); } */ // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, cycle_chars[(int)cycle_cur[1]]); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, cycle_chars[(int)cycle_cur[2]]); // glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, cycle_chars[(int)cycle_cur[3]]); glPopMatrix(); // } } void keyboard(unsigned char key, int x, int y){ if(key==27){ exit(1); //return; // glutLeaveGameMode(); // exit(0); if(!fullscreen) glutFullScreen(); // glutEnterGameMode(); else reshape(GLWIDTH, GLHEIGHT); // glutLeaveGameMode(); fullscreen ^= 1; } } static void special(int key, int x, int y){ //printf("x: %u y: %u\n", x, y); switch(key){ case GLUT_KEY_F1: // F1: Toggle between full-screen and windowed mode fullscreen = !fullscreen; // Toggle state if(fullscreen){ // Full-screen mode windowPosX = glutGet(GLUT_WINDOW_X); // Save parameters windowPosY = glutGet(GLUT_WINDOW_Y); windowWidth = glutGet(GLUT_WINDOW_WIDTH); windowHeight = glutGet(GLUT_WINDOW_HEIGHT); glutFullScreen(); // Switch into full screen } else { // Windowed mode glutReshapeWindow(windowWidth, windowHeight); // Switch into windowed mode glutPositionWindow(windowPosX, windowPosX); // Postion top-left corner } case GLUT_KEY_UP: //glutLeaveGameMode(); Eye_Z+=10; //Eye_Y+=10; //Cen_Y+=10; //Cen_Y = Eye_Y; //Eye_Y+=Eye_dist/10; break; case GLUT_KEY_DOWN: Eye_Z-=10; //Eye_Y-=10; //Cen_Y-=10; //Cen_Y = Eye_Y; //Eye_Y-=Eye_dist/10; break; case GLUT_KEY_RIGHT: Eye_X-=10; Cen_X-=10; //Cen_X = Eye_X; //Eye_X-=Eye_Z/10; break; case GLUT_KEY_LEFT: Eye_X+=10; Cen_X+=10; //Cen_X = Eye_X; //Eye_X+=Eye_Z/10; break; case GLUT_KEY_PAGE_UP: Eye_Y+=10; //Cen_Y+=10; //Eye_dist+=Eye_dist/10; //Eye_Z=Eye_dist*sin(y_angle); //Eye_X=Eye_dist*cos(y_angle); //Cen_X = Eye_X; //Cen_Z = Eye_dist; break; case GLUT_KEY_PAGE_DOWN: Eye_Y-=10; //Eye_dist-=Eye_dist/10; //Eye_Z=Eye_dist*sin(y_angle); //Eye_X=Eye_dist*cos(y_angle); //Cen_X = Eye_X; //Cen_Z = Eye_dist; break; case GLUT_KEY_HOME: if(y_angle<360) y_angle++; else y_angle=0; Eye_Z=Eye_dist*cos(y_angle); Eye_X=Eye_dist*sin(y_angle); //Cen_X = Eye_X; //Cen_Z = Eye_dist; break; case GLUT_KEY_END: if(y_angle>0) y_angle--; else y_angle = 360; Eye_Z=Eye_dist*cos(y_angle); Eye_X=Eye_dist*sin(y_angle); //Cen_X = Eye_X; //Cen_Z = Eye_dist; break; } //Eye_Z=Eye_dist*sin(y_angle); //Eye_X=Eye_dist*cos(y_angle); } static void mouse(int button, int state, int x, int y){ printf("x: %u y: %u\n", x, y); } static void mouse_pos(int x, int y){ //printf("x: %u y: %u\n", x, y); // if(x < WIDTH/2) // Cen_X = x/-2; // else static int last_x = 0; static int last_y = 0; last_x-=x/2; last_y-=y/2; Cen_X += last_x; //Cen_X = WIDTH/2+x*-1;//WIDTH*sin(x/WIDTH*360); // if(y < HEIGHT/2) // Cen_Y = y/-2; // else Cen_Y += last_y; //Cen_Y = HEIGHT/2+y*-1;//HEIGHT*sin(x/HEIGHT*360); last_x = x/2; last_y = y/2; }