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[synfig.git] / synfig-core / trunk / src / synfig / layer_composite.cpp

diff --git a/synfig-core/trunk/src/synfig/layer_composite.cpp b/synfig-core/trunk/src/synfig/layer_composite.cpp
new file mode 100644 (file)
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+++ b/synfig-core/trunk/src/synfig/layer_composite.cpp
@@ -0,0 +1,170 @@
+/* === S I N F G =========================================================== */
+/*!    \file layer_composite.cpp
+**     \brief Template File
+**
+**     $Id: layer_composite.cpp,v 1.2 2005/01/24 03:08:18 darco Exp $
+**
+**     \legal
+**     Copyright (c) 2002 Robert B. Quattlebaum Jr.
+**
+**     This software and associated documentation
+**     are CONFIDENTIAL and PROPRIETARY property of
+**     the above-mentioned copyright holder.
+**
+**     You may not copy, print, publish, or in any
+**     other way distribute this software without
+**     a prior written agreement with
+**     the copyright holder.
+**     \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#      include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#      include <config.h>
+#endif
+
+#include "layer_composite.h"
+#include "context.h"
+#include "time.h"
+#include "color.h"
+#include "surface.h"
+#include "renddesc.h"
+#include "target.h"
+
+#include "layer_bitmap.h"
+
+#include "general.h"
+#include "render.h"
+#include "paramdesc.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace sinfg;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+bool
+Layer_Composite::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc_, ProgressCallback *cb)  const
+{
+       RendDesc renddesc(renddesc_);
+       
+       if(!amount_)
+               return context.accelerated_render(surface,quality,renddesc,cb);
+
+       CanvasBase image;
+
+       SuperCallback stageone(cb,0,50000,100000);
+       SuperCallback stagetwo(cb,50000,100000,100000);
+
+       Layer_Bitmap::Handle surfacelayer(new class Layer_Bitmap());
+
+       Context iter;
+       
+       for(iter=context;*iter;iter++)
+               image.push_back(*iter);
+
+       image.push_front(surfacelayer.get());
+
+       // We want to go ahead and schedule any other
+       // layers...
+//     while(dynamic_cast<Layer_Composite*>(context->get()))
+//     while(context->get() &&
+//             &context->get()->AcceleratedRender==
+//             &Layer_Composite::AcceleratedRender)
+//             image.push_back(*(context++));
+
+       image.push_back(0);     // Alpha black
+
+       // Render the backdrop
+       if(!context.accelerated_render(&surfacelayer->surface,quality,renddesc,&stageone))
+               return false;
+
+       if(quality<=4)surfacelayer->c=3;else
+       if(quality<=5)surfacelayer->c=2;
+       else if(quality<=6)surfacelayer->c=1;
+       else surfacelayer->c=0;
+       surfacelayer->tl=renddesc.get_tl();
+       surfacelayer->br=renddesc.get_br();
+       surfacelayer->set_blend_method(Color::BLEND_STRAIGHT);
+
+       image.push_front(const_cast<sinfg::Layer_Composite*>(this));
+
+       // Set up a surface target
+       Target::Handle target(surface_target(surface));
+       
+       if(!target)
+       {
+               if(cb)cb->error(_("Unable to create surface target"));
+               return false;
+       }
+       
+       RendDesc desc(renddesc);
+       
+       target->set_rend_desc(&desc);
+
+       // Render the scene
+       return render(Context(image.begin()),target,desc,&stagetwo);
+       //return render_threaded(Context(image.begin()),target,desc,&stagetwo,2);
+}
+
+Rect
+Layer_Composite::get_full_bounding_rect(Context context)const
+{
+       if(is_disabled() || Color::is_onto(get_blend_method()))
+               return context.get_full_bounding_rect();
+
+       return context.get_full_bounding_rect()|get_bounding_rect();
+}
+
+Layer::Vocab
+Layer_Composite::get_param_vocab()const
+{
+       Layer::Vocab ret(Layer::get_param_vocab());
+
+       ret.push_back(ParamDesc(amount_,"amount")
+               .set_local_name(_("Amount"))
+       );
+       ret.push_back(ParamDesc(blend_method_,"blend_method")
+               .set_local_name(_("Blend Method"))
+       );
+
+       return ret;
+}
+
+bool
+Layer_Composite::set_param(const String & param, const ValueBase &value)
+{
+       if(param=="amount" && value.same_as(amount_))
+               amount_=value.get(amount_);
+       else
+       if(param=="blend_method" && value.same_as(int()))
+               blend_method_=static_cast<Color::BlendMethod>(value.get(int()));
+       else
+               return Layer::set_param(param,value);
+       return true;
+}
+
+ValueBase
+Layer_Composite::get_param(const String & param)const
+{
+       if(param=="amount")
+               return get_amount();
+       if(param=="blend_method")
+               return static_cast<int>(get_blend_method());
+       return Layer::get_param(param);
+}