X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frender%2Fobject.cpp;fp=source%2Frender%2Fobject.cpp;h=dc1f4f3f1a7996bd55008732df21c0c826f27af5;hb=7aaec9a70b8d7733429bec043f8e33e02956f266;hp=0000000000000000000000000000000000000000;hpb=bec07999d95b76f4b47cffcc564d0cd0afc0435e;p=libs%2Fgl.git diff --git a/source/render/object.cpp b/source/render/object.cpp new file mode 100644 index 00000000..dc1f4f3f --- /dev/null +++ b/source/render/object.cpp @@ -0,0 +1,271 @@ +#include +#include +#include "error.h" +#include "material.h" +#include "mesh.h" +#include "object.h" +#include "objectinstance.h" +#include "program.h" +#include "programdata.h" +#include "renderer.h" +#include "resourcemanager.h" +#include "technique.h" +#include "texturing.h" + +using namespace std; + +namespace Msp { +namespace GL { + +Matrix Object::identity_matrix; + +Object::Object(): + lods(1), + lod0_watched(false) +{ } + +Object::Object(const Mesh *m, const Technique *t): + lods(1), + lod0_watched(false) +{ + set_mesh(m); + set_technique(t); +} + +// TODO should have copy-c'tor to set watch on lod0 mesh if necessary + +Object::~Object() +{ + if(lods[0].mesh && lod0_watched) + if(ResourceManager *rm = lods[0].mesh->get_manager()) + rm->unobserve_resource(*lods[0].mesh, *this); +} + +Object::LevelOfDetail &Object::get_lod(unsigned i, const char *caller) +{ + if(i>lods.size()) + throw out_of_range(caller); + if(i>0 && (!lods[0].mesh || !lods[0].technique)) + throw invalid_operation(caller); + + if(i==lods.size()) + lods.push_back(lods.back()); + + return lods[i]; +} + +void Object::set_mesh(unsigned i, const Mesh *m) +{ + RefPtr &ptr = get_lod(i, "Object::set_mesh").mesh; + if(i==0 && ptr && lod0_watched) + if(ResourceManager *rm = ptr->get_manager()) + rm->unobserve_resource(*ptr, *this); + ptr = m; + ptr.keep(); + lod0_watched = false; + + if(i==0 && m) + if(ResourceManager *rm = m->get_manager()) + { + rm->observe_resource(*m, *this); + lod0_watched = true; + } + + update_bounding_sphere(); +} + +void Object::update_bounding_sphere() +{ + vector points; + for(vector::const_iterator i=lods.begin(); i!=lods.end(); ++i) + { + if(!i->mesh || !i->mesh->is_loaded()) + continue; + + const VertexArray &vertices = i->mesh->get_vertices(); + + 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; + } + + unsigned n_vertices = vertices.size(); + points.reserve(points.size()+n_vertices); + for(unsigned j=0; j::from_point_cloud(points.begin(), points.end()); +} + +const Mesh *Object::get_mesh(unsigned i) const +{ + if(i>=lods.size()) + return 0; + + return lods[i].mesh.get(); +} + +void Object::set_technique(unsigned i, const Technique *t) +{ + RefPtr &ptr = get_lod(i, "Object::set_technique").technique; + ptr = t; + ptr.keep(); +} + +const Technique *Object::get_technique(unsigned i) const +{ + if(i>=lods.size()) + return 0; + + return lods[i].technique.get(); +} + +void Object::render(Renderer &renderer, const Tag &tag) const +{ + const RenderPass *pass = get_pass(tag, 0); + if(!pass) + return; + + const Mesh *mesh = lods.front().mesh.get(); + if (!mesh) + throw logic_error("no mesh"); + + Renderer::Push push(renderer); + pass->apply(renderer); + + setup_render(renderer, tag); + mesh->draw(renderer); + finish_render(renderer, tag); +} + +void Object::render(Renderer &renderer, const ObjectInstance &inst, const Tag &tag) const +{ + unsigned lod = min(inst.get_level_of_detail(renderer), lods.size()-1); + const RenderPass *pass = get_pass(tag, lod); + if(!pass) + return; + + const Mesh *mesh = lods[lod].mesh.get(); + if (!mesh) + throw logic_error("no mesh"); + + Renderer::Push push(renderer); + pass->apply(renderer); + + setup_render(renderer, tag); + inst.setup_render(renderer, tag); + mesh->draw(renderer); + inst.finish_render(renderer, tag); + finish_render(renderer, tag); +} + +const RenderPass *Object::get_pass(const Tag &tag, unsigned lod) const +{ + const Technique *tech = lods[lod].technique.get(); + if(!tech) + throw logic_error("no technique"); + return tech->find_pass(tag); +} + +void Object::resource_loaded(Resource &res) +{ + if(&res==lods.front().mesh.get() && bounding_sphere.is_empty()) + update_bounding_sphere(); +} + +void Object::resource_removed(Resource &res) +{ + if(&res==lods.front().mesh.get()) + lod0_watched = false; +} + + +Object::Loader::Loader(Object &o): + LodLoader(o, 0, 0) +{ + init(); +} + +Object::Loader::Loader(Object &o, Collection &c): + LodLoader(o, 0, &c) +{ + init(); +} + +void Object::Loader::init() +{ + add("bounding_sphere_hint", &Loader::bounding_sphere_hint); + add("level_of_detail", &Loader::level_of_detail); +} + +void Object::Loader::finish() +{ + obj.update_bounding_sphere(); +} + +void Object::Loader::bounding_sphere_hint(float x, float y, float z, float r) +{ + obj.bounding_sphere = Geometry::BoundingSphere(Vector3(x, y, z), r); +} + +void Object::Loader::level_of_detail(unsigned i) +{ + LodLoader ldr(obj, i, coll); + load_sub_with(ldr); +} + + +Object::LodLoader::LodLoader(Object &o, unsigned i, Collection *c): + DataFile::CollectionObjectLoader(o, c), + index(i), + lod(obj.get_lod(index, "Object::LodLoader::LodLoader")) +{ + add("mesh", &LodLoader::mesh_inline); + add("mesh", &LodLoader::mesh); + add("technique", &LodLoader::technique_inline); + add("technique", &LodLoader::technique); +} + +void Object::LodLoader::mesh(const string &n) +{ + obj.set_mesh(index, &get_collection().get(n)); +} + +void Object::LodLoader::mesh_inline() +{ + RefPtr msh = new Mesh; + load_sub(*msh); + lod.mesh = msh; +} + +void Object::LodLoader::technique(const std::string &n) +{ + obj.set_technique(index, &get_collection().get(n)); +} + +void Object::LodLoader::technique_inline() +{ + RefPtr tech = new Technique; + if(coll) + load_sub(*tech, get_collection()); + else + load_sub(*tech); + lod.technique = tech; +} + +} // namespace GL +} // namespace Msp