// Create
//--------------------------------------------------------------------
public void create(RasterBuffer src)
{
m_height = (int)agg_basics.uceil(src.Height());
m_width = (int)agg_basics.uceil(src.Width());
m_width_hr = (int)agg_basics.uround(src.Width() * LineAABasics.line_subpixel_scale);
m_half_height_hr = (int)agg_basics.uround(src.Height() * LineAABasics.line_subpixel_scale / 2);
m_offset_y_hr = m_dilation_hr + m_half_height_hr - LineAABasics.line_subpixel_scale / 2;
m_half_height_hr += LineAABasics.line_subpixel_scale / 2;
int NewSizeInBytes = (m_width + m_dilation * 2) * (m_height + m_dilation * 2);
if (m_DataSizeInBytes < NewSizeInBytes)
{
if (m_data != null)
{
System.Runtime.InteropServices.Marshal.FreeHGlobal(m_data);
}
m_DataSizeInBytes = NewSizeInBytes;
m_data = System.Runtime.InteropServices.Marshal.AllocHGlobal(m_DataSizeInBytes);
}
unsafe
{
m_buf.attach((byte *)m_data,
(uint)(m_width + m_dilation * 2),
(uint)(m_height + m_dilation * 2),
(int)(m_width + m_dilation * 2),
32);
int x, y;
RGBA_Bytes *d1;
RGBA_Bytes *d2;
for (y = 0; y < m_height; y++)
{
d1 = (RGBA_Bytes *)m_buf.GetPixelPointer(y + m_dilation) + m_dilation;
for (x = 0; x < m_width; x++)
{
*d1++ = *(RGBA_Bytes *)src.GetPixelPointer(x, y);
}
}
RGBA_Bytes *s1;
RGBA_Bytes *s2;
RGBA_Bytes noColor = (RGBA_Bytes)RGBA_Bytes.no_color();
for (y = 0; y < m_dilation; y++)
{
//s1 = m_buf.GetPixelPointer(m_height + m_dilation - 1) + m_dilation;
//s2 = m_buf.GetPixelPointer(m_dilation) + m_dilation;
d1 = (RGBA_Bytes *)m_buf.GetPixelPointer(m_dilation + m_height + y) + m_dilation;
d2 = (RGBA_Bytes *)m_buf.GetPixelPointer(m_dilation - y - 1) + m_dilation;
for (x = 0; x < m_width; x++)
{
//*d1++ = RGBA_Bytes(*s1++, 0);
//*d2++ = RGBA_Bytes(*s2++, 0);
*d1++ = noColor;
*d2++ = noColor;
}
}
int h = m_height + m_dilation * 2;
for (y = 0; y < h; y++)
{
s1 = (RGBA_Bytes *)m_buf.GetPixelPointer(y) + m_dilation;
s2 = (RGBA_Bytes *)m_buf.GetPixelPointer(y) + m_dilation + m_width;
d1 = (RGBA_Bytes *)m_buf.GetPixelPointer(y) + m_dilation + m_width;
d2 = (RGBA_Bytes *)m_buf.GetPixelPointer(y) + m_dilation;
for (x = 0; x < m_dilation; x++)
{
*d1++ = *s1++;
*--d2 = *--s2;
}
}
}
}
