From 14247923eb936d602af43b35cb8ad0fd5d3e25e7 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 6 Feb 2021 15:28:46 +0200
Subject: [PATCH] Allow samplers to be loaded from datafiles

---
 source/renderpass.cpp | 22 +++++++++++++++++++---
 source/renderpass.h   |  6 ++++++
 source/resources.cpp  |  2 ++
 3 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/source/renderpass.cpp b/source/renderpass.cpp
index 8281b215..835e78a6 100644
--- a/source/renderpass.cpp
+++ b/source/renderpass.cpp
@@ -128,7 +128,7 @@ void RenderPass::set_texture(unsigned index, const Texture *tex)
 	if(!texturing)
 		texturing = new Texturing;
 
-	texturing->attach(index, *tex);
+	texturing->attach(index, *tex, texturing->get_attached_sampler(index));
 }
 
 int RenderPass::get_texture_index(const string &n) const
@@ -246,14 +246,30 @@ void RenderPass::Loader::uniform_slot2(const string &name, const string &slot)
 
 RenderPass::TextureLoader::TextureLoader(Texturing &t, unsigned i, Collection *c):
 	DataFile::CollectionObjectLoader<Texturing>(t, c),
-	index(i)
+	index(i),
+	tex(0),
+	samp(0)
 {
+	add("sampler",   &TextureLoader::sampler);
 	add("texture",   &TextureLoader::texture);
 }
 
+void RenderPass::TextureLoader::finish()
+{
+	if(tex)
+		obj.attach(index, *tex, samp);
+	else if(samp)
+		obj.attach(index, *samp);
+}
+
+void RenderPass::TextureLoader::sampler(const string &name)
+{
+	samp = &get_collection().get<Sampler>(name);
+}
+
 void RenderPass::TextureLoader::texture(const string &name)
 {
-	obj.attach(index, get_collection().get<Texture>(name));
+	tex = &get_collection().get<Texture>(name);
 }
 
 } // namespace GL
diff --git a/source/renderpass.h b/source/renderpass.h
index 7a2f6568..9e704376 100644
--- a/source/renderpass.h
+++ b/source/renderpass.h
@@ -11,6 +11,7 @@ class Material;
 class Program;
 class ProgramData;
 class Renderer;
+class Sampler;
 class Texture;
 class Texturing;
 
@@ -46,10 +47,15 @@ private:
 	{
 	private:
 		unsigned index;
+		const Texture *tex;
+		const Sampler *samp;
 
 	public:
 		TextureLoader(Texturing &, unsigned, Collection *);
 	private:
+		virtual void finish();
+
+		void sampler(const std::string &);
 		void texture(const std::string &);
 	};
 
diff --git a/source/resources.cpp b/source/resources.cpp
index c28cdd07..d52dbe34 100644
--- a/source/resources.cpp
+++ b/source/resources.cpp
@@ -15,6 +15,7 @@
 #include "programcompiler.h"
 #include "resourcemanager.h"
 #include "resources.h"
+#include "sampler.h"
 #include "technique.h"
 #include "texture1d.h"
 #include "texture2d.h"
@@ -46,6 +47,7 @@ Resources::Resources():
 	add_type<PipelineTemplate>().suffix(".pipe").keyword("pipeline");
 	add_type<Pose>().keyword("pose");
 	add_type<Program>().keyword("shader").suffix(".glsl").creator(&Resources::create_program);
+	add_type<Sampler>().suffix(".samp").keyword("sampler");
 	add_type<Technique>().suffix(".tech").keyword("technique");
 	add_type<Texture1D>().base<Texture>().suffix(".tex1d").keyword("texture1d");
 	add_type<Texture2D>().base<Texture>().suffix(".tex2d").suffix(".png").suffix(".jpg").keyword("texture2d").creator(&Resources::create_texture2d);
-- 
2.43.0