From 9f5f027d1c93e541a12b8e4c04bd25b11edbe132 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 20 Jun 2018 13:37:51 +0300
Subject: [PATCH] Add loading support for AmbientOcclusion

---
 source/ambientocclusion.cpp | 25 +++++++++++++++++++++++++
 source/ambientocclusion.h   | 18 ++++++++++++++++++
 source/pipelinetemplate.cpp |  2 ++
 3 files changed, 45 insertions(+)

diff --git a/source/ambientocclusion.cpp b/source/ambientocclusion.cpp
index 3d56f3f0..91e10ad7 100644
--- a/source/ambientocclusion.cpp
+++ b/source/ambientocclusion.cpp
@@ -108,5 +108,30 @@ void AmbientOcclusion::render(Renderer &renderer, const Texture2D &color, const
 	quad.draw(renderer);
 }
 
+
+AmbientOcclusion::Template::Template():
+	n_samples(16),
+	occlusion_radius(0.5f),
+	darkness(1.0f)
+{ }
+
+AmbientOcclusion *AmbientOcclusion::Template::create(unsigned width, unsigned height) const
+{
+	RefPtr<AmbientOcclusion> ao = new AmbientOcclusion(width/size_divisor, height/size_divisor);
+	ao->set_n_samples(n_samples);
+	ao->set_occlusion_radius(occlusion_radius);
+	ao->set_darkness(darkness);
+	return ao.release();
+}
+
+
+AmbientOcclusion::Template::Loader::Loader(Template &t):
+	DataFile::DerivedObjectLoader<Template, PostProcessor::Template::Loader>(t)
+{
+	add("darkness", &Template::darkness);
+	add("occlusion_radius", &Template::occlusion_radius);
+	add("samples", &Template::n_samples);
+}
+
 } // namespace GL
 } // namespace Msp
diff --git a/source/ambientocclusion.h b/source/ambientocclusion.h
index b6daa776..e7829c18 100644
--- a/source/ambientocclusion.h
+++ b/source/ambientocclusion.h
@@ -20,6 +20,24 @@ http://en.wikipedia.org/wiki/Screen_Space_Ambient_Occlusion
 */
 class AmbientOcclusion: public PostProcessor
 {
+public:
+	struct Template: PostProcessor::Template
+	{
+		class Loader: public DataFile::DerivedObjectLoader<Template, PostProcessor::Template::Loader>
+		{
+		public:
+			Loader(Template &);
+		};
+
+		unsigned n_samples;
+		float occlusion_radius;
+		float darkness;
+
+		Template();
+
+		virtual AmbientOcclusion *create(unsigned, unsigned) const;
+	};
+
 private:
 	Texture2D rotate_lookup;
 	RenderTarget occlude_target;
diff --git a/source/pipelinetemplate.cpp b/source/pipelinetemplate.cpp
index 6dbfd0a2..4493e72c 100644
--- a/source/pipelinetemplate.cpp
+++ b/source/pipelinetemplate.cpp
@@ -1,5 +1,6 @@
 #include <msp/core/maputils.h>
 #include <msp/datafile/collection.h>
+#include "ambientocclusion.h"
 #include "blend.h"
 #include "bloom.h"
 #include "colorcurve.h"
@@ -37,6 +38,7 @@ PipelineTemplate::Loader::Loader(PipelineTemplate &t, Collection &c):
 
 void PipelineTemplate::Loader::init()
 {
+	add("ambient_occlusion", &Loader::postprocessor<AmbientOcclusion>);
 	add("bloom", &Loader::postprocessor<Bloom>);
 	add("colorcurve", &Loader::postprocessor<ColorCurve>);
 	add("hdr", &PipelineTemplate::hdr);
-- 
2.43.0