//----------------------------------------------------------------
public void Begin(double x, double y, uint len)
{
// Calculate transformed Coordinates At x1,y1
double xt = x;
double yt = y;
m_trans_dir.Transform(ref xt, ref yt);
int x1 = Basics.Round(xt * subpixel_scale);
int y1 = Basics.Round(yt * subpixel_scale);
double dx;
double dy;
double delta = 1 / (double)subpixel_scale;
// Calculate Scale by X At x1,y1
dx = xt + delta;
dy = yt;
m_trans_inv.Transform(ref dx, ref dy);
dx -= x;
dy -= y;
int sx1 = (int)Basics.UnsignedRound(subpixel_scale / Math.Sqrt(dx * dx + dy * dy)) >> subpixel_shift;
// Calculate Scale by Y At x1,y1
dx = xt;
dy = yt + delta;
m_trans_inv.Transform(ref dx, ref dy);
dx -= x;
dy -= y;
int sy1 = (int)Basics.UnsignedRound(subpixel_scale / Math.Sqrt(dx * dx + dy * dy)) >> subpixel_shift;
// Calculate transformed Coordinates At x2,y2
x += len;
xt = x;
yt = y;
m_trans_dir.Transform(ref xt, ref yt);
int x2 = Basics.Round(xt * subpixel_scale);
int y2 = Basics.Round(yt * subpixel_scale);
// Calculate Scale by X At x2,y2
dx = xt + delta;
dy = yt;
m_trans_inv.Transform(ref dx, ref dy);
dx -= x;
dy -= y;
int sx2 = (int)Basics.UnsignedRound(subpixel_scale / Math.Sqrt(dx * dx + dy * dy)) >> subpixel_shift;
// Calculate Scale by Y At x2,y2
dx = xt;
dy = yt + delta;
m_trans_inv.Transform(ref dx, ref dy);
dx -= x;
dy -= y;
int sy2 = (int)Basics.UnsignedRound(subpixel_scale / Math.Sqrt(dx * dx + dy * dy)) >> subpixel_shift;
// Initialize the interpolators
m_coord_x = new Dda2LineInterpolator(x1, x2, (int)len);
m_coord_y = new Dda2LineInterpolator(y1, y2, (int)len);
m_scale_x = new Dda2LineInterpolator(sx1, sx2, (int)len);
m_scale_y = new Dda2LineInterpolator(sy1, sy2, (int)len);
}
public RGBA_Bytes(RGBA_Doubles c)
{
m_R = ((byte)Basics.UnsignedRound(c.m_r * (double)base_mask));
m_G = ((byte)Basics.UnsignedRound(c.m_g * (double)base_mask));
m_B = ((byte)Basics.UnsignedRound(c.m_b * (double)base_mask));
m_A = ((byte)Basics.UnsignedRound(c.m_a * (double)base_mask));
}
//--------------------------------------------------------------------
public RGBA_Bytes(double r_, double g_, double b_)
{
m_R = ((byte)Basics.UnsignedRound(r_ * (double)base_mask));
m_G = ((byte)Basics.UnsignedRound(g_ * (double)base_mask));
m_B = ((byte)Basics.UnsignedRound(b_ * (double)base_mask));
m_A = (byte)base_mask;
}
public override void ToPixel(ref RGBA_Bytes c)
{
c.m_R = (Byte)Basics.UnsignedRound(r);
c.m_G = (Byte)Basics.UnsignedRound(g);
c.m_B = (Byte)Basics.UnsignedRound(b);
c.m_A = (Byte)Basics.UnsignedRound(a);
}
//--------------------------------------------------------------------
private RGBA_Bytes(RGBA_Doubles c, double a_)
{
m_R = ((byte)Basics.UnsignedRound(c.m_r * (double)base_mask));
m_G = ((byte)Basics.UnsignedRound(c.m_g * (double)base_mask));
m_B = ((byte)Basics.UnsignedRound(c.m_b * (double)base_mask));
m_A = ((byte)Basics.UnsignedRound(a_ * (double)base_mask));
}
void MasterAlpha(int style, double alpha)
{
if (style >= 0)
{
while ((int)_masterAlpha.Size() <= style)
{
_masterAlpha.Add(AntiAliasingMask);
}
_masterAlpha.Array[style] = Basics.UnsignedRound(alpha * AntiAliasingMask);
}
}
//--------------------------------------------------------------------
public RGBA_Bytes Gradient(RGBA_Bytes c, double k)
{
RGBA_Bytes ret = new RGBA_Bytes();
uint ik = Basics.UnsignedRound(k * base_scale);
ret.R_Byte = (byte)((uint)(R_Byte) + ((((uint)(c.R_Byte) - R_Byte) * ik) >> BaseShift));
ret.G_Byte = (byte)((uint)(G_Byte) + ((((uint)(c.G_Byte) - G_Byte) * ik) >> BaseShift));
ret.B_Byte = (byte)((uint)(B_Byte) + ((((uint)(c.B_Byte) - B_Byte) * ik) >> BaseShift));
ret.A_Byte = (byte)((uint)(A_Byte) + ((((uint)(c.A_Byte) - A_Byte) * ik) >> BaseShift));
return(ret);
}
//----------------------------------------------------------------
public void ReSynchronize(double xe, double ye, uint len)
{
// Assume x1,y1 are equal to the ones At the previous End point
int x1 = m_coord_x.y();
int y1 = m_coord_y.y();
int sx1 = m_scale_x.y();
int sy1 = m_scale_y.y();
// Calculate transformed Coordinates At x2,y2
double xt = xe;
double yt = ye;
m_trans_dir.Transform(ref xt, ref yt);
int x2 = Basics.Round(xt * subpixel_scale);
int y2 = Basics.Round(yt * subpixel_scale);
double delta = 1 / (double)subpixel_scale;
double dx;
double dy;
// Calculate Scale by X At x2,y2
dx = xt + delta;
dy = yt;
m_trans_inv.Transform(ref dx, ref dy);
dx -= xe;
dy -= ye;
int sx2 = (int)Basics.UnsignedRound(subpixel_scale / Math.Sqrt(dx * dx + dy * dy)) >> subpixel_shift;
// Calculate Scale by Y At x2,y2
dx = xt;
dy = yt + delta;
m_trans_inv.Transform(ref dx, ref dy);
dx -= xe;
dy -= ye;
int sy2 = (int)Basics.UnsignedRound(subpixel_scale / Math.Sqrt(dx * dx + dy * dy)) >> subpixel_shift;
// Initialize the interpolators
m_coord_x = new Dda2LineInterpolator(x1, x2, (int)len);
m_coord_y = new Dda2LineInterpolator(y1, y2, (int)len);
m_scale_x = new Dda2LineInterpolator(sx1, sx2, (int)len);
m_scale_y = new Dda2LineInterpolator(sy1, sy2, (int)len);
}
public override void ToPixel(ref RGBA_Bytes c)
{
c.m_R = (Byte)Basics.UnsignedRound(r);
}
