/*******************************************************************************
Display_Str: Display String Input: x, y , Color, Mode, String
*******************************************************************************/
void Display_Str(unsigned short x0, unsigned short y0, unsigned short Color, unsigned char Mode, unsigned const char *s)
{
signed short i, j, b;
Point_SCR(x0, y0);
for (j=0; j<14;++j) {
Set_Pixel(Mode?Color:BLACK);
}
x0++;
while (*s!=0) {
unsigned const short *scanline=Char_Dot+((*s-0x22)*8);
for(i=0;i<8;++i){
Point_SCR(x0+i, y0);
if((*s==0x20)||(*s==0x21)) b=0x0000;
else b=scanline[i];
if((*s==0x21)&&(i==4)) break;
for(j=0;j<14;++j){
if (b&4) {
Set_Pixel(Mode?BLACK:Color);
} else {
Set_Pixel(Mode?Color:BLACK);
}
b>>=1;
}
}
if(*s==0x21) x0 +=4;
else x0 += 8;
++s; //next character
}
}
/*******************************************************************************
Display_Logo: Display Logo Input: X, Y
*******************************************************************************/
void Display_Logo(unsigned short Dot_x, unsigned short Dot_y)
{
unsigned short i, j, k, l, Color, b;
Color = BLUE;
k = 2;
for (j=0; j < Logo_Dot[1]; j++) {
for (i=0; i < Logo_Dot[0]; i++) {
b = Logo_Dot[k];
for (l = 0; l < 16; l++) {
if (b & 1) {
Point_SCR(Dot_x + i * 16 + l, Dot_y + Logo_Dot[1] - j);
Set_Pixel(Color);
}
b = b >> 1;
if (b == 0) break;
}
k++;
}
}
Color = WHITE;
for (i=0; i<320; ++i)
{
Point_SCR(i, 0);
Set_Pixel(Color);
Point_SCR(i, 239);
Set_Pixel(Color);
}
for (i=3; i<317; ++i)
{
Point_SCR(i, 3);
Set_Pixel(Color);
Point_SCR(i, 236);
Set_Pixel(Color);
}
Point_SCR(0, 0);
for (j=0; j<240; ++j) Set_Pixel(Color);
Point_SCR(3, 3);
for (j=3; j<237; ++j) Set_Pixel(Color);
Point_SCR(316, 3);
for (j=3; j<237; ++j) Set_Pixel(Color);
Point_SCR(319, 0);
for (j=0; j<240; ++j) Set_Pixel(Color);
}
void fractale_julia(void){
int x = 0, y = 0, i = 0, iMax = 50;
double xMin, xMax, yMin, yMax, img_Largeur, img_Hauteur, zoom, buffer;
Uint32 couleur;
struct Complexe c, z;
xMin = -img_Largeur/(2*zoom);
xMax = img_Largeur/(2*zoom);
yMin = -img_Hauteur/(2*zoom);
yMax = img_Hauteur/(2*zoom);
zoom = 200;
img_Largeur = 600;
img_Hauteur = 600;
c.reel = -0.0519;
c.imaginaire = 0.688;
SDL_Surface *ecran = Init_SDL();
ecran = SDL_SetVideoMode(img_Largeur, img_Hauteur, 32, SDL_HWSURFACE | SDL_DOUBLEBUF);
for (x = 0; x < img_Largeur; x++) {
for (y = 0; y < img_Hauteur; y++) {
z.reel = x/zoom + xMin;
z.imaginaire = y/zoom + yMin;
i = 0;
do {
buffer = z.reel;
z.reel = pow(z.reel, 2) - pow(z.imaginaire, 2) + c.reel;
z.imaginaire = 2*buffer*z.imaginaire + c.imaginaire;
i++;
} while ((pow(z.reel, 2) + pow(z.imaginaire, 2)) < 4 && i < iMax);
if (i == iMax)
couleur = 0;
else {
couleur = i*iMax*100;
}
Set_Pixel(ecran, x, y, couleur);
}
SDL_UpdateRect(ecran,0,0,0,0);
}
pause();
atexit(SDL_Quit);
}
/*******************************************************************************
Clear Screen
*******************************************************************************/
void Clear_Screen(unsigned short Color)
{
unsigned int i;
Point_SCR(0, 0); //X_pos=0, Y_pos=0
for(i=0;i<240*320;++i) Set_Pixel(Color);
}
