X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fobject.cpp;h=d48b0843fb9f3b73591588631429ce09e2709a8c;hb=fcb9b3bdb1746f5a5c4b564857c0a2a66fd55765;hp=0469c31a99629187f17ce7d5dde803823636bb2e;hpb=85e83ace47e5a9a8ae7263886255dd81afc69278;p=libs%2Fgl.git

diff --git a/source/object.cpp b/source/object.cpp
index 0469c31a..d48b0843 100644
--- a/source/object.cpp
+++ b/source/object.cpp
@@ -1,19 +1,15 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include "except.h"
+#include <msp/datafile/collection.h>
+#include <msp/strings/format.h>
 #include "material.h"
 #include "mesh.h"
 #include "object.h"
 #include "objectinstance.h"
 #include "program.h"
 #include "programdata.h"
-#include "texture.h"
-#include "texunit.h"
+#include "renderer.h"
+#include "resourcemanager.h"
+#include "technique.h"
+#include "texturing.h"
 
 using namespace std;
 
@@ -21,121 +17,224 @@ namespace Msp {
 namespace GL {
 
 Object::Object():
-	mesh(0),
-	shprog(0),
-	shdata(0),
-	material(0)
+	meshes(1)
 { }
 
-Object::~Object()
+Object::Object(const Mesh *m, const Technique *t)
 {
-	delete shdata;
+	set_mesh(m);
+	set_technique(t);
 }
 
-void Object::render(const ObjectInstance *inst) const
+// Avoid synthesizing ~RefPtr in files including object.h
+Object::~Object()
 {
-	setup_render();
+	if(meshes[0])
+		if(ResourceManager *rm = meshes[0]->get_manager())
+			rm->unwatch_resource(*meshes[0], *this);
+}
 
-	if(inst)
-		inst->setup_render();
+void Object::set_mesh(unsigned i, const Mesh *m)
+{
+	if(i>meshes.size())
+		throw out_of_range("Object::set_mesh");
 
-	mesh->draw();
+	if(i==meshes.size())
+		meshes.push_back(m);
+	else
+	{
+		if(i==0 && meshes[i])
+			if(ResourceManager *rm = meshes[i]->get_manager())
+				rm->unwatch_resource(*meshes[i], *this);
+		meshes[i] = m;
+	}
+	meshes[i].keep();
 
-	if(inst)
-		inst->finish_render();
+	if(i==0 && m)
+		if(ResourceManager *rm = m->get_manager())
+			rm->watch_resource(*m, *this);
 
-	finish_render();
+	update_bounding_sphere();
 }
 
-void Object::render(const list<const ObjectInstance *> &insts) const
+void Object::update_bounding_sphere()
 {
-	setup_render();
-
-	for(list<const ObjectInstance *>::const_iterator i=insts.begin(); i!=insts.end(); ++i)
+	vector<Vector3> points;
+	for(vector<RefPtr<const Mesh> >::const_iterator i=meshes.begin(); i!=meshes.end(); ++i)
 	{
-		(*i)->setup_render();
+		if(!*i)
+			continue;
+
+		const VertexArray &vertices = (*i)->get_vertices();
 
-		mesh->draw();
+		int offset = vertices.get_format().offset(VERTEX3);
+		bool three = true;
+		if(offset<0)
+		{
+			offset = vertices.get_format().offset(VERTEX2);
+			three = false;
+			if(offset<0)
+				continue;
+		}
 
-		(*i)->finish_render();
+		unsigned n_vertices = vertices.size();
+		points.reserve(points.size()+n_vertices);
+		for(unsigned j=0; j<n_vertices; ++j)
+		{
+			const float *v = vertices[j];
+			points.push_back(Vector3(v[offset], v[offset+1], (three ? v[offset+2] : 0.0f)));
+		}
 	}
 
-	finish_render();
+	bounding_sphere = Geometry::BoundingSphere<float, 3>::from_point_cloud(points.begin(), points.end());
 }
 
-void Object::setup_render() const
+const Mesh *Object::get_mesh(unsigned i) const
 {
-	if(!mesh)
-		throw InvalidState("Trying to render Object without mesh");
+	if(i>=meshes.size())
+		return 0;
 
-	if(shprog)
-	{
-		shprog->bind();
-		shdata->apply();
-		for(unsigned i=0; i<textures.size(); ++i)
-		{
-			TexUnit::activate(i);
-			textures[i]->bind();
-		}
-	}
-	else if(!textures.empty())
-		textures.front()->bind();
+	return meshes[i].get();
+}
 
-	if(material)
-		material->apply();
+void Object::set_technique(const Technique *t)
+{
+	technique = t;
+	technique.keep();
 }
 
-void Object::finish_render() const
+void Object::render(const Tag &tag) const
 {
-	if(shprog)
-		Program::unbind();
-	for(unsigned i=0; i<textures.size(); ++i)
-	{
-		TexUnit::activate(i);
-		Texture::unbind();
-	}
+	const RenderPass *pass = get_pass(tag);
+	if(!pass)
+		return;
+
+	Bind bind_shader(pass->get_shader_program());
+	if(pass->get_shader_data())
+		pass->get_shader_data()->apply();
+	Bind bind_material(pass->get_material());
+	Bind bind_texturing(pass->get_texturing());
+
+	meshes.front()->draw();
 }
 
+void Object::render(Renderer &renderer, const Tag &tag) const
+{
+	const RenderPass *pass = get_pass(tag);
+	if(!pass)
+		return;
+
+	Renderer::Push push(renderer);
+	pass->apply(renderer);
+
+	setup_render(renderer, tag);
+	meshes.front()->draw(renderer);
+	finish_render(renderer, tag);
+}
+
+void Object::render(Renderer &renderer, const ObjectInstance &inst, const Tag &tag) const
+{
+	const RenderPass *pass = get_pass(tag);
+	if(!pass)
+		return;
+
+	Renderer::Push push(renderer);
+	pass->apply(renderer);
+
+	setup_render(renderer, tag);
+	inst.setup_render(renderer, tag);
+	unsigned lod = min<unsigned>(inst.get_level_of_detail(renderer), meshes.size()-1);
+	meshes[lod]->draw(renderer);
+	inst.finish_render(renderer, tag);
+	finish_render(renderer, tag);
+}
+
+const RenderPass *Object::get_pass(const Tag &tag) const
+{
+	if(!technique)
+		throw logic_error("!technique");
+	if(!technique->has_pass(tag))
+		return 0;
+	return &technique->get_pass(tag);
+}
+
+void Object::resource_loaded(Resource &res)
+{
+	if(!meshes.empty() && &res==meshes.front().get() && bounding_sphere.is_empty())
+		update_bounding_sphere();
+}
+
+
+Object::Loader::Loader(Object &o):
+	DataFile::CollectionObjectLoader<Object>(o, 0)
+{
+	init();
+}
 
 Object::Loader::Loader(Object &o, Collection &c):
-	obj(o),
-	coll(c)
+	DataFile::CollectionObjectLoader<Object>(o, &c)
 {
-	add("material", &Object::material);
-	add("mesh",     &Object::mesh);
-	add("shader",   &Loader::shader);
-	add("texture",  &Loader::texture);
+	init();
 }
 
-Object::Loader::~Loader()
+void Object::Loader::init()
 {
-	if(obj.shdata)
-	{
-		for(unsigned i=0; i<textures.size(); ++i)
-			obj.shdata->uniform(obj.shprog->get_uniform_location(textures[i]), static_cast<int>(i));
-	}
+	add("mesh",     &Loader::mesh_inline);
+	add("mesh",     &Loader::mesh_inline_lod);
+	add("mesh",     &Loader::mesh);
+	add("mesh",     &Loader::mesh_lod);
+	add("technique", &Loader::technique_inline);
+	add("technique", &Loader::technique);
 }
 
-void Object::Loader::shader(const string &n)
+void Object::Loader::finish()
 {
-	obj.shprog=&coll.get<Program>(n);
-	if(!obj.shdata)
-		obj.shdata=new ProgramData;
+	obj.update_bounding_sphere();
 }
 
-void Object::Loader::texture(const string &n)
+void Object::Loader::mesh_inline()
 {
-	unsigned eqsign=n.find('=');
-	if(eqsign!=string::npos)
-	{
-		obj.textures.push_back(&coll.get<Texture>(n.substr(eqsign+1)));
-		textures.push_back(n.substr(0, eqsign));
-	}
+	RefPtr<Mesh> msh = new Mesh;
+	load_sub(*msh);
+	obj.meshes.front() = msh;
+}
+
+void Object::Loader::mesh_inline_lod(unsigned l)
+{
+	if(l>obj.meshes.size())
+		throw out_of_range("Object::Loader::mesh_inline_lod");
+
+	RefPtr<Mesh> msh = new Mesh;
+	load_sub(*msh);
+	if(l==obj.meshes.size())
+		obj.meshes.push_back(msh);
 	else
-	{
-		obj.textures.push_back(&coll.get<Texture>(n));
-		textures.push_back(n);
-	}
+		obj.meshes[l] = msh;
+}
+
+void Object::Loader::mesh(const std::string &n)
+{
+	obj.set_mesh(&get_collection().get<Mesh>(n));
+}
+
+void Object::Loader::mesh_lod(unsigned l, const string &n)
+{
+	obj.set_mesh(l, &get_collection().get<Mesh>(n));
+}
+
+void Object::Loader::technique_inline()
+{
+	RefPtr<Technique> tech = new Technique;
+	if(coll)
+		load_sub(*tech, get_collection());
+	else
+		load_sub(*tech);
+	obj.technique = tech;
+}
+
+void Object::Loader::technique(const std::string &n)
+{
+	obj.set_technique(&get_collection().get<Technique>(n));
 }
 
 } // namespace GL