nuclear@0: #include "goat3d.h"
nuclear@0: #include "goat3d_impl.h"
nuclear@9: #include "chunk.h"
nuclear@0: 
nuclear@0: Scene::Scene()
nuclear@0: 	: name("unnamed"), ambient(0.05, 0.05, 0.05)
nuclear@0: {
nuclear@0: }
nuclear@0: 
nuclear@0: Scene::~Scene()
nuclear@0: {
nuclear@0: 	clear();
nuclear@0: }
nuclear@0: 
nuclear@0: void Scene::clear()
nuclear@0: {
nuclear@0: 	for(size_t i=0; i<materials.size(); i++) {
nuclear@0: 		delete materials[i];
nuclear@0: 	}
nuclear@0: 	materials.clear();
nuclear@0: 
nuclear@0: 	for(size_t i=0; i<meshes.size(); i++) {
nuclear@0: 		delete meshes[i];
nuclear@0: 	}
nuclear@0: 	meshes.clear();
nuclear@0: 
nuclear@0: 	for(size_t i=0; i<lights.size(); i++) {
nuclear@0: 		delete lights[i];
nuclear@0: 	}
nuclear@0: 	lights.clear();
nuclear@0: 
nuclear@0: 	for(size_t i=0; i<cameras.size(); i++) {
nuclear@0: 		delete cameras[i];
nuclear@0: 	}
nuclear@0: 	cameras.clear();
nuclear@0: 
nuclear@0: 	for(size_t i=0; i<nodes.size(); i++) {
nuclear@0: 		delete_node_tree(nodes[i]);
nuclear@0: 	}
nuclear@0: 	nodes.clear();
nuclear@0: 
nuclear@0: 	name = "unnamed";
nuclear@0: }
nuclear@0: 
nuclear@0: void Scene::set_name(const char *name)
nuclear@0: {
nuclear@0: 	this->name = name;
nuclear@0: }
nuclear@0: 
nuclear@0: const char *Scene::get_name() const
nuclear@0: {
nuclear@0: 	return name.c_str();
nuclear@0: }
nuclear@8: 
nuclear@8: void Scene::set_ambient(const Vector3 &amb)
nuclear@8: {
nuclear@8: 	ambient = amb;
nuclear@8: }
nuclear@8: 
nuclear@8: const Vector3 &Scene::get_ambient() const
nuclear@8: {
nuclear@8: 	return ambient;
nuclear@8: }
nuclear@8: 
nuclear@8: void Scene::add_material(Material *mat)
nuclear@8: {
nuclear@8: 	materials.push_back(mat);
nuclear@8: }
nuclear@8: 
nuclear@8: Material *Scene::get_material(int idx) const
nuclear@8: {
nuclear@8: 	return idx >=0 && idx < (int)materials.size() ? materials[idx] : 0;
nuclear@8: }
nuclear@8: 
nuclear@8: Material *Scene::get_material(const char *name) const
nuclear@8: {
nuclear@8: 	for(size_t i=0; i<materials.size(); i++) {
nuclear@8: 		if(materials[i]->name == std::string(name)) {
nuclear@8: 			return materials[i];
nuclear@8: 		}
nuclear@8: 	}
nuclear@8: 	return 0;
nuclear@8: }
nuclear@8: 
nuclear@9: int Scene::get_material_count() const
nuclear@9: {
nuclear@9: 	return (int)materials.size();
nuclear@9: }
nuclear@9: 
nuclear@9: 
nuclear@8: void Scene::add_mesh(Mesh *mesh)
nuclear@8: {
nuclear@8: 	meshes.push_back(mesh);
nuclear@8: }
nuclear@8: 
nuclear@8: Mesh *Scene::get_mesh(int idx) const
nuclear@8: {
nuclear@8: 	return idx >= 0 && idx < (int)meshes.size() ? meshes[idx] : 0;
nuclear@8: }
nuclear@8: 
nuclear@8: Mesh *Scene::get_mesh(const char *name) const
nuclear@8: {
nuclear@8: 	for(size_t i=0; i<meshes.size(); i++) {
nuclear@8: 		if(meshes[i]->name == std::string(name)) {
nuclear@8: 			return meshes[i];
nuclear@8: 		}
nuclear@8: 	}
nuclear@8: 	return 0;
nuclear@8: }
nuclear@8: 
nuclear@9: int Scene::get_mesh_count() const
nuclear@9: {
nuclear@9: 	return (int)meshes.size();
nuclear@9: }
nuclear@9: 
nuclear@9: 
nuclear@8: void Scene::add_light(Light *light)
nuclear@8: {
nuclear@8: 	lights.push_back(light);
nuclear@8: }
nuclear@8: 
nuclear@8: Light *Scene::get_light(int idx) const
nuclear@8: {
nuclear@8: 	return idx >= 0 && idx < (int)lights.size() ? lights[idx] : 0;
nuclear@8: }
nuclear@8: 
nuclear@8: Light *Scene::get_light(const char *name) const
nuclear@8: {
nuclear@8: 	for(size_t i=0; i<lights.size(); i++) {
nuclear@8: 		if(lights[i]->name == std::string(name)) {
nuclear@8: 			return lights[i];
nuclear@8: 		}
nuclear@8: 	}
nuclear@8: 	return 0;
nuclear@8: }
nuclear@8: 
nuclear@9: int Scene::get_light_count() const
nuclear@9: {
nuclear@9: 	return (int)lights.size();
nuclear@9: }
nuclear@9: 
nuclear@9: 
nuclear@8: void Scene::add_camera(Camera *cam)
nuclear@8: {
nuclear@8: 	cameras.push_back(cam);
nuclear@8: }
nuclear@8: 
nuclear@8: Camera *Scene::get_camera(int idx) const
nuclear@8: {
nuclear@8: 	return idx >= 0 && idx < (int)cameras.size() ? cameras[idx] : 0;
nuclear@8: }
nuclear@8: 
nuclear@8: Camera *Scene::get_camera(const char *name) const
nuclear@8: {
nuclear@8: 	for(size_t i=0; i<cameras.size(); i++) {
nuclear@8: 		if(cameras[i]->name == std::string(name)) {
nuclear@8: 			return cameras[i];
nuclear@8: 		}
nuclear@8: 	}
nuclear@8: 	return 0;
nuclear@8: }
nuclear@8: 
nuclear@9: int Scene::get_camera_count() const
nuclear@9: {
nuclear@9: 	return (int)cameras.size();
nuclear@9: }
nuclear@9: 
nuclear@9: 
nuclear@8: void Scene::add_node(Node *node)
nuclear@8: {
nuclear@8: 	nodes.push_back(node);
nuclear@8: }
nuclear@8: 
nuclear@8: Node *Scene::get_node(int idx) const
nuclear@8: {
nuclear@8: 	return idx >= 0 && idx < (int)nodes.size() ? nodes[idx] : 0;
nuclear@8: }
nuclear@8: 
nuclear@8: Node *Scene::get_node(const char *name) const
nuclear@8: {
nuclear@8: 	for(size_t i=0; i<nodes.size(); i++) {
nuclear@8: 		if(strcmp(nodes[i]->get_name(), name) == 0) {
nuclear@8: 			return nodes[i];
nuclear@8: 		}
nuclear@8: 	}
nuclear@8: 	return 0;
nuclear@8: }
nuclear@8: 
nuclear@9: int Scene::get_node_count() const
nuclear@9: {
nuclear@9: 	return (int)nodes.size();
nuclear@9: }
nuclear@9: 
nuclear@9: 
nuclear@8: bool Scene::load(goat3d_io *io)
nuclear@8: {
nuclear@8: 	return false;
nuclear@8: }
nuclear@8: 
nuclear@9: static long save_env(const Scene *scn, long offset, goat3d_io *io);
nuclear@9: static long save_materials(const Scene *scn, long offset, goat3d_io *io);
nuclear@9: static long save_material(const Material *mat, long offset, goat3d_io *io);
nuclear@9: static long save_mat_attrib(const char *name, const MaterialAttrib &attr, long offset, goat3d_io *io);
nuclear@9: static long save_meshes(const Scene *scn, long offset, goat3d_io *io);
nuclear@9: static long save_lights(const Scene *scn, long offset, goat3d_io *io);
nuclear@9: static long save_cameras(const Scene *scn, long offset, goat3d_io *io);
nuclear@9: static long save_nodes(const Scene *scn, long offset, goat3d_io *io);
nuclear@9: 
nuclear@9: static long write_chunk_float(int id, float val, long offs, goat3d_io *io);
nuclear@9: static long write_chunk_float3(int id, const Vector3 &vec, long offs, goat3d_io *io);
nuclear@9: static long write_chunk_float4(int id, const Vector4 &vec, long offs, goat3d_io *io);
nuclear@9: 
nuclear@8: bool Scene::save(goat3d_io *io) const
nuclear@8: {
nuclear@9: 	long res;
nuclear@9: 
nuclear@9: 	ChunkHeader hdr;
nuclear@9: 	hdr.id = CNK_SCENE;
nuclear@9: 	hdr.size = sizeof hdr;
nuclear@9: 
nuclear@9: 	if((res = save_env(this, hdr.size, io)) < 0) {
nuclear@9: 		return false;
nuclear@9: 	}
nuclear@9: 	hdr.size += res;
nuclear@9: 
nuclear@9: 	if((res = save_materials(this, hdr.size, io)) < 0) {
nuclear@9: 		return false;
nuclear@9: 	}
nuclear@9: 	hdr.size += res;
nuclear@9: 
nuclear@9: 	if((res = save_meshes(this, hdr.size, io)) < 0) {
nuclear@9: 		return false;
nuclear@9: 	}
nuclear@9: 	hdr.size += res;
nuclear@9: 
nuclear@9: 	if((res = save_lights(this, hdr.size, io)) < 0) {
nuclear@9: 		return false;
nuclear@9: 	}
nuclear@9: 	hdr.size += res;
nuclear@9: 
nuclear@9: 	if((res = save_cameras(this, hdr.size, io)) < 0) {
nuclear@9: 		return false;
nuclear@9: 	}
nuclear@9: 	hdr.size += res;
nuclear@9: 
nuclear@9: 	if((res = save_nodes(this, hdr.size, io)) < 0) {
nuclear@9: 		return false;
nuclear@9: 	}
nuclear@9: 	hdr.size += res;
nuclear@9: 
nuclear@9: 	// now go back and write the root chunk
nuclear@9: 	io->seek(0, SEEK_SET, io->cls);
nuclear@9: 	if(io->write(&hdr, sizeof hdr, io->cls) < (ssize_t)sizeof hdr) {
nuclear@9: 		return false;
nuclear@9: 	}
nuclear@9: 
nuclear@9: 	return true;
nuclear@8: }
nuclear@9: 
nuclear@9: 
nuclear@9: static long save_env(const Scene *scn, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	long res;
nuclear@9: 
nuclear@9: 	ChunkHeader hdr;
nuclear@9: 	hdr.id = CNK_ENV;
nuclear@9: 	hdr.size = sizeof hdr;
nuclear@9: 
nuclear@9: 	if((res = write_chunk_float3(CNK_ENV_AMBIENT, scn->get_ambient(), offset, io)) < 0) {
nuclear@9: 		return -1;
nuclear@9: 	}
nuclear@9: 	hdr.size += res;
nuclear@9: 
nuclear@9: 	// TODO add fog chunk
nuclear@9: 
nuclear@9: 	io->seek(offset, SEEK_SET, io->cls);
nuclear@9: 	if(io->write(&hdr, sizeof hdr, io->cls) < (ssize_t)sizeof hdr) {
nuclear@9: 		return -1;
nuclear@9: 	}
nuclear@9: 	return hdr.size;
nuclear@9: }
nuclear@9: 
nuclear@9: static long save_materials(const Scene *scn, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	long res;
nuclear@9: 
nuclear@9: 	ChunkHeader hdr;
nuclear@9: 	hdr.id = CNK_MTL_LIST;
nuclear@9: 	hdr.size = sizeof hdr;
nuclear@9: 
nuclear@9: 	for(int i=0; i<scn->get_material_count(); i++) {
nuclear@9: 		if((res = save_material(scn->get_material(i), offset + hdr.size, io)) < 0) {
nuclear@9: 			return -1;
nuclear@9: 		}
nuclear@9: 		hdr.size += res;
nuclear@9: 	}
nuclear@9: 
nuclear@9: 	io->seek(offset, SEEK_SET, io->cls);
nuclear@9: 	if(io->write(&hdr, hdr.size, io->cls) < hdr.size) {
nuclear@9: 		return -1;
nuclear@9: 	}
nuclear@9: 	return hdr.size;
nuclear@9: }
nuclear@9: 
nuclear@9: static long save_material(const Material *mat, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	long res;
nuclear@9: 
nuclear@9: 	ChunkHeader hdr;
nuclear@9: 	hdr.id = CNK_MTL;
nuclear@9: 	hdr.size = sizeof hdr;
nuclear@9: 
nuclear@9: 	for(int i=0; i<mat->get_attrib_count(); i++) {
nuclear@9: 		const char *name = mat->get_attrib_name(i);
nuclear@9: 		if((res = save_mat_attrib(name, (*mat)[i], offset + hdr.size, io)) < 0) {
nuclear@9: 			return -1;
nuclear@9: 		}
nuclear@9: 		hdr.size += res;
nuclear@9: 	}
nuclear@9: 
nuclear@9: 	io->seek(offset, SEEK_SET, io->cls);
nuclear@9: 	if(io->write(&hdr, hdr.size, io->cls) < hdr.size) {
nuclear@9: 		return -1;
nuclear@9: 	}
nuclear@9: 	return hdr.size;
nuclear@9: }
nuclear@9: 
nuclear@9: static long save_mat_attrib(const char *name, const MaterialAttrib &attr, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	long res;
nuclear@9: 
nuclear@9: 	ChunkHeader hdr;
nuclear@9: 	hdr.id = CNK_MTL_ATTR;
nuclear@9: 	hdr.size = sizeof hdr;
nuclear@9: 
nuclear@9: 	// TODO cont.
nuclear@9: 	return -1;
nuclear@9: }
nuclear@9: 
nuclear@9: static long save_meshes(const Scene *scn, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	return 0;
nuclear@9: }
nuclear@9: 
nuclear@9: static long save_lights(const Scene *scn, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	return 0;
nuclear@9: }
nuclear@9: 
nuclear@9: static long save_cameras(const Scene *scn, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	return 0;
nuclear@9: }
nuclear@9: 
nuclear@9: static long save_nodes(const Scene *scn, long offset, goat3d_io *io)
nuclear@9: {
nuclear@9: 	return 0;
nuclear@9: }
nuclear@9: 
nuclear@9: static long write_chunk_float(int id, float val, long offs, goat3d_io *io)
nuclear@9: {
nuclear@9: 	int size = sizeof(ChunkHeader) + sizeof val;
nuclear@9: 	char *buf = (char*)alloca(size);
nuclear@9: 
nuclear@9: 	Chunk *c = (Chunk*)buf;
nuclear@9: 	c->hdr.id = id;
nuclear@9: 	c->hdr.size = size;
nuclear@9: 	*(float*)c->data = val;
nuclear@9: 
nuclear@9: 	io->seek(offs, SEEK_SET, io->cls);
nuclear@9: 	if(io->write(buf, size, io->cls) < size) {
nuclear@9: 		return -1;
nuclear@9: 	}
nuclear@9: 	return size;
nuclear@9: }
nuclear@9: 
nuclear@9: static long write_chunk_float3(int id, const Vector3 &vec, long offs, goat3d_io *io)
nuclear@9: {
nuclear@9: 	int size = sizeof(ChunkHeader) + sizeof vec;
nuclear@9: 	char *buf = (char*)alloca(size);
nuclear@9: 
nuclear@9: 	Chunk *c = (Chunk*)buf;
nuclear@9: 	c->hdr.id = id;
nuclear@9: 	c->hdr.size = size;
nuclear@9: 	*(Vector3*)c->data = vec;
nuclear@9: 
nuclear@9: 	io->seek(offs, SEEK_SET, io->cls);
nuclear@9: 	if(io->write(buf, size, io->cls) < size) {
nuclear@9: 		return -1;
nuclear@9: 	}
nuclear@9: 	return size;
nuclear@9: }
nuclear@9: 
nuclear@9: static long write_chunk_float4(int id, const Vector4 &vec, long offs, goat3d_io *io)
nuclear@9: {
nuclear@9: 	int size = sizeof(ChunkHeader) + sizeof vec;
nuclear@9: 	char *buf = (char*)alloca(size);
nuclear@9: 
nuclear@9: 	Chunk *c = (Chunk*)buf;
nuclear@9: 	c->hdr.id = id;
nuclear@9: 	c->hdr.size = size;
nuclear@9: 	*(Vector4*)c->data = vec;
nuclear@9: 
nuclear@9: 	io->seek(offs, SEEK_SET, io->cls);
nuclear@9: 	if(io->write(buf, size, io->cls) < size) {
nuclear@9: 		return -1;
nuclear@9: 	}
nuclear@9: 	return size;
nuclear@9: }