void
OptimizerBlendZero::apply_zero(const RunParams ¶ms, const TaskBlend::Handle &blend, const Task::Handle &task) const
{
if (!task || !task->valid_target())
{
Task::Handle empty = new TaskSurfaceEmpty();
empty->target_surface = params.ref_task->target_surface;
apply(params, empty);
return;
}
if (task->target_surface == blend->target_surface)
{
apply(params, task);
return;
}
apply(params, task->clone());
params.ref_task->target_surface = blend->target_surface;
params.ref_task->move_target_rect(
blend->get_target_offset()
- task->get_target_offset()
+ (task == blend->sub_task_a() ? blend->offset_a : blend->offset_b) );
assert( params.ref_task->check() );
}
void
OptimizerBlendSplit::run(const RunParams& params) const
{
TaskBlend::Handle blend = TaskBlend::Handle::cast_dynamic(params.ref_task);
if ( blend
&& blend->target_surface
&& blend->sub_task_a()
&& blend->sub_task_a()->target_surface == blend->target_surface
&& (blend->sub_task_a().type_is<TaskSurface>() || blend->sub_task_a().type_is<TaskSurfaceEmpty>())
&& blend->sub_task_b()
&& blend->sub_task_b()->target_surface
&& !Color::is_straight(blend->blend_method) )
{
if (TaskList::Handle list_b = TaskList::Handle::cast_dynamic(blend->sub_task_b()))
{
// try to find dedicated groups
std::vector<RectInt> groups;
for(Task::List::const_iterator i = list_b->sub_tasks.begin(); i != list_b->sub_tasks.end(); ++i)
if (*i && (*i)->valid_target())
groups.push_back((*i)->get_target_rect());
#ifndef NDEBUG
int sub_tasks_count = (int)groups.size();
#endif
bool retry = true;
while(retry)
{
retry = false;
for(int i = 0; i < (int)groups.size(); ++i)
{
for(int j = i+1; j < (int)groups.size(); ++j)
{
if (etl::intersect(groups[i], groups[j]))
{
etl::set_union(groups[i], groups[i], groups[j]);
groups.erase(groups.begin() + j);
--j;
retry = true;
}
}
}
}
// split task
if (groups.size() > 1)
{
// create list
TaskList::Handle list;
list = new TaskList();
assign(list, Task::Handle(blend));
list->sub_tasks.clear();
#ifndef NDEBUG
Task::Set processed;
#endif
// fill list
for(int j = 0; j < (int)groups.size(); ++j)
{
// create sub-blend
TaskList::Handle sub_list_b = TaskList::Handle::cast_dynamic(blend->sub_task_b()->clone());
sub_list_b->sub_tasks.clear();
sub_list_b->trunc_target_rect(groups[j]);
RectInt rect = groups[j]
+ blend->get_target_offset()
+ blend->get_offset_b();
TaskBlend::Handle sub_blend = TaskBlend::Handle::cast_dynamic(blend->clone());
sub_blend->trunc_target_rect(rect);
sub_blend->sub_task_a() = new TaskSurface();
assign(sub_blend->sub_task_a(), blend->sub_task_a());
sub_blend->sub_task_a()->sub_tasks.clear();
sub_blend->sub_task_a()->trunc_target_rect(rect);
sub_blend->sub_task_b() = sub_list_b;
list->sub_tasks.push_back(sub_blend);
// fill list-b of sub-blend
for(Task::List::const_iterator i = list_b->sub_tasks.begin(); i != list_b->sub_tasks.end(); ++i)
if (*i && (*i)->valid_target() && etl::contains(groups[j], (*i)->get_target_rect()))
{
#ifndef NDEBUG
assert(processed.count(*i) == 0);
processed.insert(*i);
#endif
sub_list_b->sub_tasks.push_back(*i);
}
// optimization for list with single task
if (sub_list_b->sub_tasks.size() == 1)
sub_blend->sub_task_b() = sub_list_b->sub_tasks[0];
}
#ifndef NDEBUG
assert((int)processed.size() == sub_tasks_count);
#endif
apply(params, list);
}
}
}
}