--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file context.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2008 Chris Moore
+**
+** This package is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License as
+** published by the Free Software Foundation; either version 2 of
+** the License, or (at your option) any later version.
+**
+** This package is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+** General Public License for more details.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "context.h"
+#include "layer.h"
+#include "layer_composite.h"
+#include "string.h"
+#include "vector.h"
+#include "color.h"
+#include "surface.h"
+#include "renddesc.h"
+#include "valuenode.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+// #define SYNFIG_PROFILE_LAYERS
+// #define SYNFIG_DEBUG_LAYERS
+
+/* === G L O B A L S ======================================================= */
+
+#ifdef SYNFIG_PROFILE_LAYERS
+#include <ETL/clock>
+static int depth(0);
+static std::map<String,float> time_table;
+static std::map<String,int> run_table;
+static etl::clock profile_timer;
+static String curr_layer;
+static void
+_print_profile_report()
+{
+ synfig::info(">>>> Profile Report: (Times are in msecs)");
+ std::map<String,float>::iterator iter;
+ float total_time(0);
+ for(iter=time_table.begin();iter!=time_table.end();++iter)
+ {
+ String layer(iter->first);
+ float time(iter->second);
+ int runs(run_table[layer]);
+ total_time+=time;
+ synfig::info(" Layer \"%s\",\tExecs: %03d, Avg Time: %05.1f, Total Time: %05.1f",layer.c_str(),runs,time/runs*1000,time*1000);
+ }
+ synfig::info("Total Time: %f seconds", total_time);
+ synfig::info("<<<< End of Profile Report");
+}
+#endif // SYNFIG_PROFILE_LAYERS
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Color
+Context::get_color(const Point &pos)const
+{
+ Context context(*this);
+
+ while(!context->empty())
+ {
+ // If this layer is active, then go
+ // ahead and break out of the loop
+ if((*context)->active())
+ break;
+
+ // Otherwise, we want to keep searching
+ // till we find either an active layer,
+ // or the end of the layer list
+ ++context;
+ }
+
+ // If this layer isn't defined, return alpha
+ if((context)->empty()) return Color::alpha();
+
+ RWLock::ReaderLock lock((*context)->get_rw_lock());
+
+ return (*context)->get_color(context+1, pos);
+}
+
+Rect
+Context::get_full_bounding_rect()const
+{
+ Context context(*this);
+
+ while(!context->empty())
+ {
+ // If this layer is active, then go
+ // ahead and break out of the loop
+ if((*context)->active())
+ break;
+
+ // Otherwise, we want to keep searching
+ // till we find either an active layer,
+ // or the end of the layer list
+ ++context;
+ }
+
+ // If this layer isn't defined, return zero-sized rectangle
+ if(context->empty()) return Rect::zero();
+
+ return (*context)->get_full_bounding_rect(context+1);
+}
+
+
+/* Profiling will go like this:
+ Profile start = +, stop = -
+
+ +
+ -
+
+ time diff is recorded
+
+ to get the independent times we need to break at the one inside and record etc...
+ so it looks more like this:
+
+ +
+ -
+ +
+ -
+ +
+ ...
+ -
+ +
+ -
+ +
+ -
+
+ at each minus we must record all the info for that which we are worried about...
+ each layer can do work before or after the other work is done... so both values must be recorded...
+*/
+
+bool
+Context::accelerated_render(Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb) const
+{
+#ifdef SYNFIG_PROFILE_LAYERS
+ String layer_name(curr_layer);
+
+ //sum the pre-work done by layer above us... (curr_layer is layer above us...)
+ if(depth>0)
+ {
+ time_table[curr_layer]+=profile_timer();
+ //if(run_table.count(curr_layer))run_table[curr_layer]++;
+ // else run_table[curr_layer]=1;
+ }
+#endif // SYNFIG_PROFILE_LAYERS
+
+ const Rect bbox(renddesc.get_rect());
+
+ // this is going to be set to true if this layer contributes
+ // nothing, but it's a straight blend with non-zero amount, and so
+ // it has an effect anyway
+ bool straight_and_empty = false;
+ etl::handle<Layer_Composite> composite;
+ Context context(*this);
+
+ for(;!(context)->empty();++context)
+ {
+ // If we are not active then move on to next layer
+ if(!(*context)->active())
+ continue;
+
+ const Rect layer_bounds((*context)->get_bounding_rect());
+ composite = etl::handle<Layer_Composite>::cast_dynamic(*context);
+
+ // If the box area is less than zero or the boxes do not
+ // intersect then move on to next layer, unless the layer is
+ // using a straight blend and has a non-zero amount, in which
+ // case it will still affect the result
+ if(layer_bounds.area() <= 0.0000000000001 || !(layer_bounds && bbox))
+ {
+ if (composite &&
+ Color::is_straight(composite->get_blend_method()) &&
+ composite->get_amount() != 0.0f)
+ {
+ straight_and_empty = true;
+ break;
+ }
+ continue;
+ }
+
+ // If this layer has Straight as the blend method and amount
+ // is 1.0, and the layer doesn't depend on its context, then
+ // we don't want to render the context
+ if (composite &&
+ composite->get_blend_method() == Color::BLEND_STRAIGHT &&
+ composite->get_amount() == 1.0f &&
+ !composite->reads_context())
+ {
+ Layer::Handle layer = *context;
+ while (!context->empty()) context++; // skip the context
+ return layer->accelerated_render(context,surface,quality,renddesc, cb);
+ }
+
+ // Break out of the loop--we have found a good layer
+ break;
+ }
+
+ // If this layer isn't defined, return alpha
+ if (context->empty() || (straight_and_empty && composite->get_amount() == 1.0f))
+ {
+#ifdef SYNFIG_DEBUG_LAYERS
+ synfig::info("Context::accelerated_render(): Hit end of list");
+#endif // SYNFIG_DEBUG_LAYERS
+ surface->set_wh(renddesc.get_w(),renddesc.get_h());
+ surface->clear();
+#ifdef SYNFIG_PROFILE_LAYERS
+ profile_timer.reset();
+#endif // SYNFIG_PROFILE_LAYERS
+ return true;
+ }
+
+#ifdef SYNFIG_DEBUG_LAYERS
+ synfig::info("Context::accelerated_render(): Descending into %s",(*context)->get_name().c_str());
+#endif // SYNFIG_DEBUG_LAYERS
+
+ try {
+ RWLock::ReaderLock lock((*context)->get_rw_lock());
+
+#ifdef SYNFIG_PROFILE_LAYERS
+ //go down one layer :P
+ depth++;
+ curr_layer=(*context)->get_name(); //make sure the layer inside is referring to the correct layer outside
+ profile_timer.reset(); // +
+#endif // SYNFIG_PROFILE_LAYERS
+
+ bool ret;
+
+ // this layer doesn't draw anything onto the canvas we're
+ // rendering, but it uses straight blending, so we need to render
+ // the stuff under us and then blit transparent pixels over it
+ // using the appropriate 'amount'
+ if (straight_and_empty)
+ {
+ if ((ret = Context((context+1)).accelerated_render(surface,quality,renddesc,cb)))
+ {
+ Surface clearsurface;
+ clearsurface.set_wh(renddesc.get_w(),renddesc.get_h());
+ clearsurface.clear();
+
+ Surface::alpha_pen apen(surface->begin());
+ apen.set_alpha(composite->get_amount());
+ apen.set_blend_method(composite->get_blend_method());
+
+ clearsurface.blit_to(apen);
+ }
+ }
+ else
+ ret = (*context)->accelerated_render(context+1,surface,quality,renddesc, cb);
+
+#ifdef SYNFIG_PROFILE_LAYERS
+ //post work for the previous layer
+ time_table[curr_layer]+=profile_timer(); //-
+ if(run_table.count(curr_layer))run_table[curr_layer]++;
+ else run_table[curr_layer]=1;
+
+ depth--;
+ curr_layer = layer_name; //we are now onto this layer (make sure the post gets recorded correctly...
+
+ //print out the table it we're done...
+ if(depth==0) _print_profile_report(),time_table.clear(),run_table.clear();
+ profile_timer.reset(); //+
+#endif // SYNFIG_PROFILE_LAYERS
+
+ return ret;
+ }
+ catch(std::bad_alloc)
+ {
+ synfig::error("Context::accelerated_render(): Layer \"%s\" threw a bad_alloc exception!",(*context)->get_name().c_str());
+#ifdef _DEBUG
+ return false;
+#else // _DEBUG
+ ++context;
+ return context.accelerated_render(surface, quality, renddesc, cb);
+#endif // _DEBUG
+ }
+ catch(...)
+ {
+ synfig::error("Context::accelerated_render(): Layer \"%s\" threw an exception, rethrowing...",(*context)->get_name().c_str());
+ throw;
+ }
+}
+
+void
+Context::set_time(Time time)const
+{
+ Context context(*this);
+ while(!(context)->empty())
+ {
+ // If this layer is active, and
+ // it either isn't already set to the given time or
+ // it's a time loop layer,
+ // then break out of the loop and set its time
+ if((*context)->active() &&
+ (!(*context)->dirty_time_.is_equal(time) ||
+ (*context)->get_name() == "timeloop"))
+ break;
+
+ // Otherwise, we want to keep searching
+ // till we find either an active layer,
+ // or the end of the layer list
+ ++context;
+ }
+
+ // If this layer isn't defined, just return
+ if((context)->empty()) return;
+
+ // Set up a writer lock
+ RWLock::WriterLock lock((*context)->get_rw_lock());
+
+ //synfig::info("%s: dirty_time=%f",(*context)->get_name().c_str(),(float)(*context)->dirty_time_);
+ //synfig::info("%s: time=%f",(*context)->get_name().c_str(),(float)time);
+
+ {
+ Layer::ParamList params;
+ Layer::DynamicParamList::const_iterator iter;
+
+ for(iter=(*context)->dynamic_param_list().begin();iter!=(*context)->dynamic_param_list().end();iter++)
+ params[iter->first]=(*iter->second)(time);
+
+ (*context)->set_param_list(params);
+
+ (*context)->set_time(context+1,time);
+ (*context)->dirty_time_=time;
+
+ }
+}
+
+void
+Context::set_time(Time time,const Vector &/*pos*/)const
+{
+ set_time(time);
+/*
+ Context context(*this);
+ while(!(context)->empty())
+ {
+ // If this layer is active, then go
+ // ahead and break out of the loop
+ if((*context)->active())
+ break;
+
+ // Otherwise, we want to keep searching
+ // till we find either an active layer,
+ // or the end of the layer list
+ ++context;
+ }
+
+ // If this layer isn't defined, just return
+ if((context)->empty()) return;
+
+ else
+ {
+ Layer::ParamList params;
+ Layer::DynamicParamList::const_iterator iter;
+
+ for(iter=(*context)->dynamic_param_list().begin();iter!=(*context)->dynamic_param_list().end();iter++)
+ params[iter->first]=(*iter->second)(time);
+
+ (*context)->set_param_list(params);
+
+ (*context)->set_time(context+1,time,pos);
+ }
+*/
+}
+
+etl::handle<Layer>
+Context::hit_check(const Point &pos)const
+{
+ Context context(*this);
+
+ while(!context->empty())
+ {
+ // If this layer is active, then go
+ // ahead and break out of the loop
+ if((*context)->active())
+ break;
+
+ // Otherwise, we want to keep searching
+ // till we find either an active layer,
+ // or the end of the layer list
+ ++context;
+ }
+
+ // If this layer isn't defined, return an empty handle
+ if((context)->empty()) return 0;
+
+ return (*context)->hit_check(context+1, pos);
+}
projects / synfig.git / blobdiff