| 0,0 → 1,313 |
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| #include <tinygl/kosgl.h> |
| #include <string.h> |
| #include <math.h> |
| #include <stdlib.h> |
| #include <kos32sys1.h> |
| #include <kolibrisys.h> |
| |
| int Fps(); |
| |
| struct { |
| int x,y; |
| int dx,dy; |
| } win; |
| |
| #define KEY_ESC 1 |
| #define KEY_F 33 |
| |
| char *title1 = "TinyGL in KolibriOS"; |
| char *title2 = "F full screen"; |
| char *title3 = "ESC - exit"; |
| char *fps = "FPS:"; |
| |
| unsigned char FullScreen = 0; |
| unsigned char skin = 3; |
| |
| struct process_table_entry *pri; |
| KOSGLContext cgl; |
| |
| static GLfloat view_rotx=20.0, view_roty=30.0, view_rotz=0.0; |
| static GLint gear1, gear2, gear3; |
| static GLfloat angle = 0.0; |
| |
| static GLuint limit; |
| static GLuint count = 1; |
| |
| /* |
| * Draw a gear wheel. You'll probably want to call this function when |
| * building a display list since we do a lot of trig here. |
| * |
| * Input: inner_radius - radius of hole at center |
| * outer_radius - radius at center of teeth |
| * width - width of gear |
| * teeth - number of teeth |
| * tooth_depth - depth of tooth |
| */ |
| static void gear( GLfloat inner_radius, GLfloat outer_radius, GLfloat width, |
| GLint teeth, GLfloat tooth_depth ) |
| { |
| GLint i; |
| GLfloat r0, r1, r2; |
| GLfloat angle, da; |
| GLfloat u, v, len; |
| |
| r0 = inner_radius; |
| r1 = outer_radius - tooth_depth/2.0; |
| r2 = outer_radius + tooth_depth/2.0; |
| |
| da = 2.0*M_PI / teeth / 4.0; |
| |
| glShadeModel( GL_FLAT ); |
| |
| glNormal3f( 0.0, 0.0, 1.0 ); |
| |
| /* draw front face */ |
| glBegin( GL_QUAD_STRIP ); |
| for (i=0;i<=teeth;i++) { |
| angle = i * 2.0*M_PI / teeth; |
| glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 ); |
| glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 ); |
| glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 ); |
| glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 ); |
| } |
| glEnd(); |
| |
| /* draw front sides of teeth */ |
| glBegin( GL_QUADS ); |
| da = 2.0*M_PI / teeth / 4.0; |
| for (i=0;i<teeth;i++) { |
| angle = i * 2.0*M_PI / teeth; |
| |
| glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 ); |
| glVertex3f( r2*cos(angle+da), r2*sin(angle+da), width*0.5 ); |
| glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), width*0.5 ); |
| glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 ); |
| } |
| glEnd(); |
| |
| glNormal3f( 0.0, 0.0, -1.0 ); |
| |
| /* draw back face */ |
| glBegin( GL_QUAD_STRIP ); |
| for (i=0;i<=teeth;i++) { |
| angle = i * 2.0*M_PI / teeth; |
| glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 ); |
| glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 ); |
| glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 ); |
| glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 ); |
| } |
| glEnd(); |
| |
| /* draw back sides of teeth */ |
| glBegin( GL_QUADS ); |
| da = 2.0*M_PI / teeth / 4.0; |
| for (i=0;i<teeth;i++) { |
| angle = i * 2.0*M_PI / teeth; |
| |
| glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 ); |
| glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), -width*0.5 ); |
| glVertex3f( r2*cos(angle+da), r2*sin(angle+da), -width*0.5 ); |
| glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 ); |
| } |
| glEnd(); |
| |
| /* draw outward faces of teeth */ |
| glBegin( GL_QUAD_STRIP ); |
| for (i=0;i<teeth;i++) { |
| angle = i * 2.0*M_PI / teeth; |
| |
| glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 ); |
| glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 ); |
| u = r2*cos(angle+da) - r1*cos(angle); |
| v = r2*sin(angle+da) - r1*sin(angle); |
| len = sqrt( u*u + v*v ); |
| u /= len; |
| v /= len; |
| glNormal3f( v, -u, 0.0 ); |
| glVertex3f( r2*cos(angle+da), r2*sin(angle+da), width*0.5 ); |
| glVertex3f( r2*cos(angle+da), r2*sin(angle+da), -width*0.5 ); |
| glNormal3f( cos(angle), sin(angle), 0.0 ); |
| glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), width*0.5 ); |
| glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), -width*0.5 ); |
| u = r1*cos(angle+3*da) - r2*cos(angle+2*da); |
| v = r1*sin(angle+3*da) - r2*sin(angle+2*da); |
| glNormal3f( v, -u, 0.0 ); |
| glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 ); |
| glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 ); |
| glNormal3f( cos(angle), sin(angle), 0.0 ); |
| } |
| |
| glVertex3f( r1*cos(0.0), r1*sin(0.0), width*0.5 ); |
| glVertex3f( r1*cos(0.0), r1*sin(0.0), -width*0.5 ); |
| |
| glEnd(); |
| |
| glShadeModel( GL_SMOOTH ); |
| |
| /* draw inside radius cylinder */ |
| glBegin( GL_QUAD_STRIP ); |
| for (i=0;i<=teeth;i++) { |
| angle = i * 2.0*M_PI / teeth; |
| glNormal3f( -cos(angle), -sin(angle), 0.0 ); |
| glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 ); |
| glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 ); |
| } |
| glEnd(); |
| } |
| |
| void init( void ) |
| { |
| static GLfloat pos[4] = {5.0, 5.0, 10.0, 1.0 }; |
| static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0 }; |
| static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0 }; |
| static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0 }; |
| |
| glLightfv( GL_LIGHT0, GL_POSITION, pos ); |
| glEnable( GL_CULL_FACE ); |
| glEnable( GL_LIGHTING ); |
| glEnable( GL_LIGHT0 ); |
| glEnable( GL_DEPTH_TEST ); |
| |
| /* make the gears */ |
| gear1 = glGenLists(1); |
| glNewList(gear1, GL_COMPILE); |
| glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red ); |
| gear( 1.0, 4.0, 1.0, 20, 0.7 ); |
| glEndList(); |
| |
| gear2 = glGenLists(1); |
| glNewList(gear2, GL_COMPILE); |
| glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green ); |
| gear( 0.5, 2.0, 2.0, 10, 0.7 ); |
| glEndList(); |
| |
| gear3 = glGenLists(1); |
| glNewList(gear3, GL_COMPILE); |
| glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue ); |
| gear( 1.3, 2.0, 0.5, 10, 0.7 ); |
| glEndList(); |
| |
| glEnable( GL_NORMALIZE ); |
| |
| glViewport(0, 0, (GLint)500, (GLint)480); |
| glMatrixMode(GL_PROJECTION); |
| glLoadIdentity(); |
| glFrustum( -1.0, 1.0, -1, 1, 5.0, 60.0 ); |
| glMatrixMode(GL_MODELVIEW); |
| glLoadIdentity(); |
| glTranslatef( 0.0, 0.0, -40.0 ); |
| glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); |
| } |
| |
| void reshape() |
| { |
| _ksys_get_process_table(pri, -1); |
| glViewport(0, 0, pri->winx_size, pri->winy_size-20); |
| glMatrixMode(GL_PROJECTION); |
| glLoadIdentity(); |
| gluPerspective(45.0, (GLfloat)pri->winx_size/pri->winy_size, 1.0, 60.0); |
| glTranslatef( 0.0, 0.0, 20.0 ); |
| glMatrixMode(GL_MODELVIEW); |
| glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); |
| } |
| |
| void disabletgl() |
| { |
| kosglDestroyContext(cgl); |
| free(pri); |
| } |
| |
| void Title() |
| { |
| _ksys_write_text(300,8,0x0,fps,strlen(fps)); |
| _ksys_write_text(8,8,0x0,title1,strlen(title1)); |
| _ksys_write_text(180,8,0x0,title2,strlen(title2)); |
| _ksys_write_text(600,8,0x0,title3,strlen(title3)); |
| } |
| |
| |
| void draw_window() |
| { |
| begin_draw(); |
| sys_create_window(win.x, win.y, win.dx, win.dy,"Gears", 0xFFFFFF, 0x34); |
| Title(); |
| end_draw(); |
| } |
| |
| |
| void main(void) |
| { |
| pri=malloc(sizeof(struct process_table_entry)); |
| win.x = 100; |
| win.y = 100; |
| win.dx = 400; |
| win.dy = 400; |
| draw_window(); |
| _ksys_set_keyboard_mode(1); |
| cgl = kosglCreateContext( 0, 0); |
| kosglMakeCurrent( 0, 20, win.dx, win.dy-20, cgl); |
| init(); |
| reshape(); |
| do{ |
| glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); |
| glPushMatrix(); |
| glRotatef( view_rotx, 1.0, 0.0, 0.0 ); |
| glRotatef( view_roty, 0.0, 1.0, 0.0 ); |
| glRotatef( view_rotz, 0.0, 0.0, 1.0 ); |
| |
| glPushMatrix(); |
| glTranslatef( -2.0, -2.0, 0.0 ); |
| glRotatef( angle, 0.0, 0.0, 1.0 ); |
| glCallList(gear1); |
| glPopMatrix(); |
| |
| glPushMatrix(); |
| glTranslatef( 4.1, -2.0, 0.0 ); |
| glRotatef( -2.0*angle-9.0, 0.0, 0.0, 1.0 ); |
| glCallList(gear2); |
| glPopMatrix(); |
| |
| glPushMatrix(); |
| glTranslatef( -2.1, 4.2, 0.0 ); |
| glRotatef( -2.0*angle-25.0, 0.0, 0.0, 1.0 ); |
| glCallList(gear3); |
| glPopMatrix(); |
| glPopMatrix(); |
| kosglSwapBuffers(); |
| |
| angle += 0.01 + 0.3* Fps(); |
| switch(_ksys_check_for_event()){ |
| case KOLIBRI_EVENT_REDRAW: draw_window(); |
| reshape(); |
| break; |
| |
| case KOLIBRI_EVENT_KEY: |
| switch(get_key().ctrl_key){ |
| case KEY_F: |
| if(!FullScreen){ |
| skin=0; |
| int screen_size_x; |
| int screen_size_y; |
| _ksys_get_screen_size(&screen_size_x, &screen_size_y); |
| sys_change_window(0,0,screen_size_x,screen_size_y); |
| draw_window(); |
| reshape(); |
| FullScreen = 1; |
| } |
| else{ |
| skin=3; |
| draw_window(); |
| sys_change_window(win.x,win.y, win.dx, win.dy); |
| reshape(); |
| FullScreen = 0; |
| }; |
| break; |
| case KEY_ESC: disabletgl(); |
| return;} |
| break; |
| |
| case 3: disabletgl(); |
| return; |
| } |
| } while(1); |
| } |