bool
TaskClampSW::run(RunParams&) const
{
RectInt r = target_rect;
if (!r.valid())
{
VectorInt offset = get_offset();
RectInt ra = sub_task()->target_rect + r.get_min() + get_offset();
if (ra.valid())
{
etl::set_intersect(ra, ra, r);
if (ra.valid())
{
LockWrite ldst(this);
if (!ldst) return false;
LockRead lsrc(sub_task());
if (!lsrc) return false;
const synfig::Surface &a = lsrc->get_surface();
synfig::Surface &c = ldst->get_surface();
for(int y = ra.miny; y < ra.maxy; ++y)
{
const Color *ca = &a[y - r.miny + offset[1]][ra.minx - r.minx + offset[0]];
Color *cc = &c[y][ra.minx];
for(int x = ra.minx; x < ra.maxx; ++x, ++ca, ++cc)
clamp_pixel(*cc, *ca);
}
}
}
}
return true;
}
bool
TaskBlendSW::run(RunParams & /* params */) const
{
const synfig::Surface &a =
SurfaceSW::Handle::cast_dynamic( sub_task_a()->target_surface )->get_surface();
const synfig::Surface &b =
SurfaceSW::Handle::cast_dynamic( sub_task_b()->target_surface )->get_surface();
synfig::Surface &c =
SurfaceSW::Handle::cast_dynamic( target_surface )->get_surface();
//debug::DebugSurface::save_to_file(a, "TaskBlendSW__run__a");
//debug::DebugSurface::save_to_file(b, "TaskBlendSW__run__b");
RectInt r = get_target_rect();
if (r.valid())
{
RectInt ra = sub_task_a()->get_target_rect() + r.get_min() + offset_a;
if (ra.valid())
{
etl::set_intersect(ra, ra, r);
if (ra.valid() && &a != &c)
{
synfig::Surface::pen p = c.get_pen(ra.minx, ra.maxx);
const_cast<synfig::Surface*>(&a)->blit_to(
p,
ra.minx - r.minx - offset_a[0],
ra.miny - r.miny - offset_a[1],
ra.maxx - ra.minx,
ra.maxy - ra.miny );
}
}
RectInt fill[] = { ra, RectInt::zero(), RectInt::zero(), RectInt::zero() };
RectInt rb = sub_task_b()->get_target_rect() + r.get_min() + offset_b;
if (rb.valid())
{
etl::set_intersect(rb, rb, r);
if (rb.valid())
{
synfig::Surface::alpha_pen ap(c.get_pen(rb.minx, rb.miny));
ap.set_blend_method(blend_method);
ap.set_alpha(amount);
const_cast<synfig::Surface*>(&b)->blit_to(
ap,
rb.minx - r.minx - offset_b[0],
rb.miny - r.miny - offset_b[1],
rb.maxx - rb.minx,
rb.maxy - rb.miny );
if (ra.valid())
{
// mark unfilled regions
fill[0] = fill[1] = fill[2] = fill[3] = ra;
fill[0].maxx = fill[2].minx = fill[3].minx = std::max(ra.minx, std::min(ra.maxx, rb.minx));
fill[1].minx = fill[2].maxx = fill[3].maxx = std::max(ra.minx, std::min(ra.maxx, rb.maxx));
fill[2].maxy = std::max(ra.miny, std::min(ra.maxy, rb.miny));
fill[3].miny = std::max(ra.miny, std::min(ra.maxy, rb.maxy));
}
}
}
if (Color::is_straight(blend_method))
{
for(int i = 0; i < 4; ++i)
{
if (fill[i].valid())
{
synfig::Surface::alpha_pen ap(
c.get_pen(fill[i].minx, fill[i].miny) );
ap.set_blend_method(blend_method);
ap.set_alpha(amount);
c.fill( Color(0, 0, 0, 0), ap,
fill[i].maxx - fill[i].minx,
fill[i].maxy - fill[i].miny );
}
}
}
}
//debug::DebugSurface::save_to_file(c, "TaskBlendSW__run__c");
return true;
}