void drawpixel(double _x, double _y, int color)
{
double dt = (m_h + m_w) * m_zoom / 4;
int x = (int)((_x - 1.0) * dt + m_w / 2), y = (int)(_y * dt + m_h / 2);
if(x >= 0 && x < m_w && y >= 0 && y < m_h)
{
putpixel_f(x, y, color, pmira);
}
}
/////////////////////////////////////////////////
// 绘制 Julia Set
/////////////////////////////////////////////////
int JDraw(COMPLEX c, double fromx, double fromy, double tox, double toy, double sr, double cr)
{
int ret = 0;
int update = 0;
state* st = g_st - 1;
clock_t tt = clock();
g_updatepoint = 0;
for(int y=0; y<g_h; y++)
{
for(int x=0; x<g_w; x++)
{
++st;
if (st->ed)
{
continue;
}
COMPLEX& z = st->z;
if (st->iter == 0)
{
double re = fromx + (tox - fromx) * (x / (double)g_w);
double im = fromy + (toy - fromy) * (y / (double)g_h);
z.re = cr * re + sr * im;
z.im = sr * re - cr * im;
}
else
{
//z = st->z;
}
st->iter++;
{
z = z * z + c;
if ( z.re*z.re + z.im*z.im > bilout )
{
st->ed = 1;
}
}
++ret;
if ( st->ed )
{
color_t c = 0;
c = colorMap(z, st->iter);
putpixel(x, y, c);
g_updatepoint += 1;
}
else if (st->iter == 1)
{
color_t c = 0;
//c = colorMap(z, st->iter);
putpixel_f(x, y, c);
}
}
if (clock() - tt > 10)
{
tt = clock();
if (kbmouhit())
{
return -1;
}
}
}
return ret;
}
