X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frenderpass.cpp;h=be5bb170280844d88c8b3e8f46fd22cb72e902de;hp=9e5b71d91f6a7a778902400d58fb0f5316dc40b7;hb=8bc776f177c7cf9d0c6fd9590273f086d38c23ca;hpb=a93d6abc8a4a3e70fa8f6781d9804583e18ef636

diff --git a/source/renderpass.cpp b/source/renderpass.cpp
index 9e5b71d9..be5bb170 100644
--- a/source/renderpass.cpp
+++ b/source/renderpass.cpp
@@ -1,182 +1,210 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include <msp/core/refptr.h>
 #include <msp/datafile/collection.h>
-#include <msp/strings/formatter.h>
+#include <msp/strings/format.h>
+#include "error.h"
 #include "material.h"
 #include "renderpass.h"
 #include "program.h"
 #include "programdata.h"
+#include "renderer.h"
 #include "texture.h"
+#include "texture2d.h"
+#include "texturing.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GL {
 
-const RenderPass *RenderPass::current=0;
-
 RenderPass::RenderPass():
 	shprog(0),
 	shdata(0),
-	own_material(false),
-	material(0)
+	material(0),
+	texturing(0),
+	back_faces(false)
 { }
 
 RenderPass::RenderPass(const RenderPass &other):
 	shprog(other.shprog),
-	shdata(other.shdata ? new ProgramData(*other.shdata) : 0),
-	own_material(other.own_material),
-	material(own_material ? new Material(*other.material) : other.material),
-	textures(other.textures)
+	shdata(other.shdata),
+	uniform_slots(other.uniform_slots),
+	material(other.material),
+	material_slot(other.material_slot),
+	texturing(other.texturing ? new Texturing(*other.texturing) : 0),
+	tex_names(other.tex_names),
+	back_faces(other.back_faces)
 { }
 
-RenderPass::~RenderPass()
+RenderPass &RenderPass::operator=(const RenderPass &other)
 {
-	delete shdata;
-	if(own_material)
-		delete material;
+	shprog = other.shprog;
+	shdata = other.shdata;
+	uniform_slots = other.uniform_slots;
+	material = other.material;
+	material_slot = other.material_slot;
+	texturing = other.texturing ? new Texturing(*other.texturing) : 0;
+	tex_names = other.tex_names;
+	back_faces = other.back_faces;
+	return *this;
 }
 
-void RenderPass::set_material(const Material *mat)
+RenderPass::~RenderPass()
 {
-	material=mat;
+	delete texturing;
 }
 
-unsigned RenderPass::get_texture_index(const string &slot) const
+void RenderPass::set_shader_program(const Program *prog, const ProgramData *data)
 {
-	for(unsigned i=0; i<textures.size(); ++i)
-		if(textures[i].name==slot)
-			return i;
-
-	throw KeyError("Unknown texture slot", slot);
+	shprog = prog;
+	shdata = (data ? new ProgramData(*data) : 0);
 }
 
-void RenderPass::set_texture(const string &slot, const Texture *tex)
+const string &RenderPass::get_slotted_uniform_name(const string &slot) const
 {
-	textures[get_texture_index(slot)]=tex;
+	map<string, string>::const_iterator i = uniform_slots.find(slot);
+	if(i==uniform_slots.end())
+	{
+		static string empty;
+		return empty;
+	}
+	return i->second;
 }
 
-void RenderPass::bind() const
+void RenderPass::set_material(const Material *mat)
 {
-	if(this==current)
-		return;
+	material = mat;
+	material.keep();
+}
 
-	const RenderPass *old=current;
-	current=this;
+void RenderPass::set_texture(unsigned index, const Texture *tex)
+{
+	if(!texturing)
+		texturing = new Texturing;
 
-	if(shprog)
-	{
-		shprog->bind();
-		shdata->apply();
-	}
-	else if(old && !old->shprog)
-		GL::Program::unbind();
-
-	if(material)
-		material->bind();
-	else if(old && !old->material)
-		GL::Material::unbind();
-
-	for(unsigned i=0; i<textures.size(); ++i)
-		if(textures[i].texture)
-			textures[i].texture->bind_to(i);
-	if(old)
-	{
-		for(unsigned i=textures.size(); i<old->textures.size(); ++i)
-			GL::Texture::unbind_from(i);
-	}
+	texturing->attach(index, *tex);
 }
 
-void RenderPass::unbind()
+int RenderPass::get_texture_index(const string &n) const
 {
-	if(current)
-	{
-		if(current->shprog)
-			GL::Program::unbind();
+	map<string, unsigned>::const_iterator i = tex_names.find(n);
+	if(i==tex_names.end())
+		return -1;
+	return i->second;
+}
 
-		if(current->material)
-			GL::Material::unbind();
+void RenderPass::apply(Renderer &renderer) const
+{
+	renderer.set_texturing(texturing);
+	renderer.set_material(material.get());
+	renderer.set_shader_program(shprog, shdata.get());
+	renderer.set_reverse_winding(back_faces);
+}
 
-		for(unsigned i=current->textures.size(); i--; )
-			GL::Texture::unbind_from(i);
 
-		current=0;
-	}
+RenderPass::Loader::Loader(RenderPass &p):
+	DataFile::CollectionObjectLoader<RenderPass>(p, 0)
+{
+	init();
 }
 
-
 RenderPass::Loader::Loader(RenderPass &p, Collection &c):
 	DataFile::CollectionObjectLoader<RenderPass>(p, &c)
 {
-	allow_pointer_reload=false;
+	init();
+}
 
+void RenderPass::Loader::init()
+{
 	add("shader",   &RenderPass::shprog);
+	add("material", &Loader::material_inline);
 	add("material", &Loader::material);
-	add("material", &RenderPass::material);
-	add("texture",  &Loader::texture);
+	add("material_slot", &RenderPass::material_slot);
+	add("back_faces",&RenderPass::back_faces);
+	add("texunit",  &Loader::texunit);
+	add("texunit",  &Loader::texunit_named);
 	add("uniforms", &Loader::uniforms);
+	add("uniform_slot", &Loader::uniform_slot);
 }
 
-void RenderPass::Loader::finish()
+void RenderPass::Loader::material_inline()
 {
-	if(obj.shprog)
-	{
-		if(!obj.shdata)
-			obj.shdata=new ProgramData;
-
-		for(unsigned i=0; i<obj.textures.size(); ++i)
-		{
-			unsigned loc=obj.shprog->get_uniform_location(obj.textures[i].name);
-			obj.shdata->uniform(loc, static_cast<int>(i));
-		}
-	}
+	RefPtr<Material> mat = new Material;
+	if(coll)
+		load_sub(*mat, get_collection());
+	else
+		load_sub(*mat);
+	obj.material = mat;
 }
 
-void RenderPass::Loader::material()
+void RenderPass::Loader::material(const string &name)
 {
-	if(obj.material)
-		throw InvalidState("A material is already loaded");
+	obj.material = &get_collection().get<Material>(name);
+	obj.material.keep();
+}
 
-	RefPtr<Material> mat=new Material;
-	load_sub(*mat);
-	obj.material=mat.release();
-	obj.own_material=true;
+void RenderPass::Loader::texunit(unsigned i)
+{
+	if(!obj.texturing)
+		obj.texturing = new Texturing;
+	TextureLoader ldr(*obj.texturing, i, coll);
+	load_sub_with(ldr);
 }
 
-void RenderPass::Loader::texture(const string &n)
+void RenderPass::Loader::texunit_named(unsigned i, const string &n)
 {
-	const Texture *tex=(n.empty() ? 0 : get_collection().get<Texture>(n));
-	TextureSlot slot(tex);
-	slot.name=(obj.textures.empty() ? "texture" : format("texture%d", obj.textures.size()));
-	load_sub(slot);
-	obj.textures.push_back(slot);
+	texunit(i);
+	obj.tex_names[n] = i;
 }
 
 void RenderPass::Loader::uniforms()
 {
 	if(!obj.shprog)
-		throw InvalidState("Can't load uniforms without a shader program");
-	if(!obj.shdata)
-		obj.shdata=new ProgramData;
-	load_sub(*obj.shdata, *obj.shprog);
+		throw invalid_operation("RenderPass::Loader::uniforms");
+	RefPtr<ProgramData> shd = new ProgramData(obj.shprog);
+	load_sub(*shd);
+	obj.shdata = shd.release();
 }
 
+void RenderPass::Loader::uniform_slot(const string &name)
+{
+	uniform_slot2(name, name);
+}
 
-RenderPass::TextureSlot::TextureSlot(const Texture *t):
-	texture(t)
-{ }
+void RenderPass::Loader::uniform_slot2(const string &name, const string &slot)
+{
+	obj.uniform_slots[slot] = name;
+}
 
 
-RenderPass::TextureSlot::Loader::Loader(TextureSlot &s):
-	DataFile::ObjectLoader<TextureSlot>(s)
+RenderPass::TextureLoader::TextureLoader(Texturing &t, unsigned i, Collection *c):
+	DataFile::CollectionObjectLoader<Texturing>(t, c),
+	index(i)
+{
+	add("texture",   &TextureLoader::texture);
+	add("texture2d", &TextureLoader::texture2d);
+}
+
+void RenderPass::TextureLoader::finish()
+{
+	if(tex)
+	{
+		obj.attach(index, *tex);
+		tex.release();
+	}
+}
+
+void RenderPass::TextureLoader::texture(const string &name)
+{
+	tex = &get_collection().get<Texture>(name);
+	tex.keep();
+}
+
+void RenderPass::TextureLoader::texture2d()
 {
-	add("name", &TextureSlot::name);
+	tex = new Texture2D;
+	if(coll)
+		load_sub(static_cast<Texture2D &>(*tex), get_collection());
+	else
+		load_sub(static_cast<Texture2D &>(*tex));
 }
 
 } // namespace GL