* Copyright 2008, Andrej Spielmann <andrej.spielmann@seh.ox.ac.uk>.
* All rights reserved. Distributed under the terms of the MIT License.
*
* Copyright 2002-2004 Maxim Shemanarev (http://www.antigrain.com)
*
*
*/
#include <Region.h>
#include "agg_basics.h"
#include "agg_array.h"
#include "agg_renderer_base.h"
#include "agg_renderer_scanline.h"
namespace agg
{
template<class Scanline, class BaseRenderer, class ColorT>
void render_scanline_subpix_solid(const Scanline& sl,
BaseRenderer& ren,
const ColorT& color)
{
int y = sl.y();
unsigned num_spans = sl.num_spans();
typename Scanline::const_iterator span = sl.begin();
for(;;)
{
int x = span->x;
if(span->len > 0)
{
ren.blend_solid_hspan_subpix(x, y, (unsigned)span->len,
color,
span->covers);
}
else
{
ren.blend_hline(x, y, (unsigned)(x - (span->len / 3) - 1),
color,
*(span->covers));
}
if(--num_spans == 0) break;
++span;
}
}
template<class BaseRenderer> class renderer_scanline_subpix_solid
{
public:
typedef BaseRenderer base_ren_type;
typedef typename base_ren_type::color_type color_type;
renderer_scanline_subpix_solid() : m_ren(0) {}
renderer_scanline_subpix_solid(base_ren_type& ren) : m_ren(&ren) {}
void attach(base_ren_type& ren)
{
m_ren = &ren;
}
void color(const color_type& c) { m_color = c; }
const color_type& color() const { return m_color; }
void prepare() {}
template<class Scanline> void render(const Scanline& sl)
{
render_scanline_subpix_solid(sl, *m_ren, m_color);
}
private:
base_ren_type* m_ren;
color_type m_color;
};
}
