static
void Draw_Ellipse_Init(SDL_Surface *super,
Sint16 x0, Sint16 y0,
Uint16 Xradius, Uint16 Yradius,
Uint32 color)
{
Draw_Init();
Draw_Ellipse(super, x0, y0, Xradius, Yradius, color);
}
int DrawEllipse(SDL_Surface *screen, T_Ellipse *ellipse_info, T_Screen *screen_info)
{
int x = 0;
int y = 0;
int x_radius = 0;
int y_radius = 0;
int color = 0;
//checking input parameters
assert(NULL!=screen);
assert(NULL!=ellipse_info);
assert(NULL != screen_info);
x = ellipse_info->center_point.x;
y = ellipse_info->center_point.y;
x_radius = ellipse_info->x_radius;
y_radius = ellipse_info->y_radius;
if ((x+x_radius)>screen_info->width) {
printf("warnning:the ellipse's stop x-accordate exceeds the screen's width!\n");
x_radius = screen_info->width - x;
}
if ((y+y_radius)>screen_info->height) {
printf("warnning:the ellipse's stop y-accordate exceeds the screen's height!\n");
y_radius = screen_info->height - y;
}
color = ellipse_info->color;
//drawing the ellipse on the screen
if ( 1== ellipse_info->fill) {
Draw_FillEllipse(screen, x, y, x_radius, y_radius, color);
} else {
Draw_Ellipse(screen, x, y, x_radius, y_radius, color);
}
return 0;
}
/*----------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
SDL_Surface *screen;
int width, height;
Uint8 video_bpp;
Uint32 videoflags;
int done;
SDL_Event event;
Uint32 then, now, frames;
if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
fprintf(stderr, "SDL_Init problem: %s", SDL_GetError());
exit(1);
}
atexit(SDL_Quit);
videoflags = SDL_SWSURFACE | SDL_ANYFORMAT;
width = 640;
height = 480;
video_bpp = 0;
while ( argc > 1 ) {
--argc;
if ( strcmp(argv[argc-1], "-width") == 0 ) {
width = atoi(argv[argc]);
--argc;
} else if ( strcmp(argv[argc-1], "-height") == 0 ) {
height = atoi(argv[argc]);
--argc;
} else if ( strcmp(argv[argc-1], "-bpp") == 0 ) {
video_bpp = atoi(argv[argc]);
videoflags &= ~SDL_ANYFORMAT;
--argc;
} else if ( strcmp(argv[argc], "-fast") == 0 ) {
videoflags = FastestFlags(videoflags, width, height, video_bpp);
} else if ( strcmp(argv[argc], "-hw") == 0 ) {
videoflags ^= SDL_HWSURFACE;
} else if ( strcmp(argv[argc], "-flip") == 0 ) {
videoflags ^= SDL_DOUBLEBUF;
} else if ( strcmp(argv[argc], "-fullscreen") == 0 ) {
videoflags ^= SDL_FULLSCREEN;
} else {
fprintf(stderr, "Use: %s [-bpp N] [-hw] [-flip] [-fast] [-fullscreen]\n",
argv[0]);
exit(1);
}
}/*while*/
/*Video mode activation*/
screen = SDL_SetVideoMode(width, height, video_bpp, videoflags);
if (!screen) {
fprintf(stderr, "I can not activate video mode: %dx%d: %s\n",
width, height, SDL_GetError());
exit(2);
}
{/*BEGIN*/
Uint32 c_white = SDL_MapRGB(screen->format, 255,255,255);
Uint32 c_gray = SDL_MapRGB(screen->format, 200,200,200);
Uint32 c_dgray= SDL_MapRGB(screen->format, 64,64,64);
Uint32 c_cyan = SDL_MapRGB(screen->format, 32,255,255);
//SDL_Rect r = {100,300,50,50};
//SDL_SetClipRect(screen, &r); //Test of clipping code
frames = 0;
then = SDL_GetTicks();
done = 0;
while( !done ) {
Draw_Line(screen, 100,100, 30,0, c_white);
Draw_Line(screen, 30,0, 100,100, c_white);
Draw_Line(screen, 100,100, 30,0, c_white);
Draw_Line(screen, 30,0, 100,100, c_white);
Draw_Line(screen, 0,0, 100,100, c_white);
Draw_Line(screen, 100,100, 300,200, c_white);
Draw_Line(screen, 200,300, 250,400,
SDL_MapRGB(screen->format, 128,128,255));
Draw_Line(screen, 500,50, 600,70,
SDL_MapRGB(screen->format, 128,255,128));
Draw_Line(screen, 500,50, 600,70,
SDL_MapRGB(screen->format, 128,255,128));
//Draw_Circle(screen, 100+frames%200, 100, 50, c_white);
Draw_Circle(screen, 100+(frames/3)%200, 100+(frames/2)%173, 50,
SDL_MapRGB(screen->format, 128+frames,255+frames,68+frames));
/*-------------*/
Draw_Circle(screen, 150,150, 5, c_white);
Draw_Circle(screen, 150,150, 4,
SDL_MapRGB(screen->format, 64,64,64));
Draw_Circle(screen, 150,150, 3,
SDL_MapRGB(screen->format, 255,0,0));
Draw_Circle(screen, 150,150, 2,
SDL_MapRGB(screen->format, 0,255,0));
Draw_Circle(screen, 150,150, 1,
SDL_MapRGB(screen->format, 0,0,255));
/*-------------*/
Draw_Line(screen, 500,100, 600,120,
SDL_MapRGB(screen->format, 128,255,128));
Draw_Circle(screen, 601,121, 2, c_white);
Draw_Circle(screen, 400,200, 2, c_white);
Draw_Line(screen, 400,200, 409,200, c_white);
Draw_Circle(screen, 409,200, 2, c_white);
Draw_Line(screen, 400,200, 400,250, c_white);
Draw_Circle(screen, 400,250, 2, c_white);
Draw_Line(screen, 409,200, 400,250, c_white);
Draw_Line(screen, 400,300, 409,300, c_gray);
Draw_Line(screen, 400,300, 400,350, c_gray);
Draw_Line(screen, 409,300, 400,350, c_dgray);
Draw_Rect(screen, 398,298, 4,4, c_cyan);
Draw_Rect(screen, 407,298, 4,4, c_cyan);
Draw_Rect(screen, 398,348, 4,4, c_cyan);
Draw_HLine(screen, 10,400, 50, c_white);
Draw_VLine(screen, 60,400, 360, c_white);
Draw_Rect(screen, 500,400, 50,50, c_white);
Draw_Pixel(screen, 510,410, c_white);
Draw_Pixel(screen, 520,420,
SDL_MapRGB(screen->format, 255,0,0));
Draw_Pixel(screen, 530,430,
SDL_MapRGB(screen->format, 0,255,0));
Draw_Pixel(screen, 540,440,
SDL_MapRGB(screen->format, 0,0,255));
Draw_Ellipse(screen, 100,300, 60,30, c_white);
Draw_FillEllipse(screen, 300,300, 30,60,
SDL_MapRGB(screen->format, 64,64,200));
Draw_Ellipse(screen, 300,300, 30,60,
SDL_MapRGB(screen->format, 255,0,0));
Draw_Round(screen, 200,20, 70,50, 10, c_white);
Draw_Round(screen, 300,20, 70,50, 20,
SDL_MapRGB(screen->format, 255,0,0));
Draw_FillRound(screen, 390,20, 70,50, 20,
SDL_MapRGB(screen->format, 255,0,0));
Draw_Round(screen, 390,20, 70,50, 20, c_cyan);
/*Draw_Round(screen, 500,400, 5,3, 4, c_cyan);*/
Draw_Rect(screen, 499,199, 52,72,
SDL_MapRGB(screen->format, 255,255,0));
//Draw_FillRect(screen, 500,200, 50,70,
// SDL_MapRGB(screen->format, 64,200,64));
Draw_FillCircle(screen, 500,330, 30, c_cyan);
SDL_UpdateRect(screen, 0, 0, 0, 0);
++frames;
while ( SDL_PollEvent(&event) ) {
switch (event.type) {
case SDL_KEYDOWN:
/*break;*/
case SDL_QUIT:
done = 1;
break;
default:
break;
}
}/*while*/
}/*while(!done)*/
}/*END*/
now = SDL_GetTicks();
if ( now > then ) {
printf("%2.2f frames per second\n",
((double)frames*1000)/(now-then));
}
fprintf(stderr, "[END]\n");
return 0;
}/*main*/