1 #include <msp/gl/extensions/arb_vertex_array_object.h>
2 #include <msp/gl/extensions/arb_vertex_buffer_object.h>
3 #include <msp/gl/extensions/arb_vertex_shader.h>
4 #include <msp/gl/extensions/khr_debug.h>
9 #include "resourcemanager.h"
10 #include "vertexsetup.h"
17 Mesh::Mesh(ResourceManager *rm)
22 Mesh::Mesh(const VertexFormat &f, ResourceManager *rm)
28 void Mesh::init(ResourceManager *rm)
33 disallow_rendering = false;
48 void Mesh::storage(const VertexFormat &fmt)
50 if(!vertices.get_format().empty())
51 throw invalid_operation("Mesh::storage");
53 vertices.set_format(fmt);
54 vtx_setup.set_format(fmt);
63 void Mesh::check_buffers(unsigned mask)
65 if(mask&VERTEX_BUFFER)
67 unsigned req_size = vertices.get_required_buffer_size();
68 if(!vbuf || (vbuf->get_size()>0 && vbuf->get_size()<req_size))
71 vbuf = new Buffer(ARRAY_BUFFER);
72 vertices.use_buffer(vbuf);
73 vtx_setup.set_vertex_array(vertices);
74 dirty |= VERTEX_BUFFER;
77 if(!debug_name.empty())
78 vbuf->set_debug_name(debug_name+" [VBO]");
85 unsigned req_size = (batches.empty() ? 0 : batches.front().get_required_buffer_size());
86 if(!ibuf || (ibuf->get_size()>0 && ibuf->get_size()<req_size))
89 ibuf = new Buffer(ELEMENT_ARRAY_BUFFER);
91 batches.front().change_buffer(ibuf);
92 vtx_setup.set_index_buffer(*ibuf);
93 dirty |= INDEX_BUFFER;
96 if(!debug_name.empty())
97 vbuf->set_debug_name(debug_name+" [IBO]");
103 unsigned Mesh::get_n_vertices() const
105 return vertices.size();
108 float *Mesh::modify_vertex(unsigned i)
110 if(vertices.get_format().empty())
111 throw invalid_operation("Mesh::modify_vertex");
112 return vertices.modify(i);
115 void Mesh::add_batch(const Batch &b)
119 batches.push_back(b);
121 batches.back().use_buffer(ibuf);
123 else if(batches.back().can_append(b.get_type()))
124 batches.back().append(b);
127 bool reallocate = (batches.size()==batches.capacity());
130 for(vector<Batch>::iterator i=batches.end(); i!=batches.begin(); )
131 (--i)->use_buffer(0);
134 Batch *prev = &batches.back();
135 batches.push_back(b);
139 for(vector<Batch>::iterator i=batches.begin(); i!=batches.end(); ++i)
141 i->use_buffer(ibuf, prev);
146 batches.back().use_buffer(ibuf, prev);
149 check_buffers(INDEX_BUFFER);
152 void Mesh::set_winding(const WindingTest *w)
157 void Mesh::draw(Renderer &renderer) const
159 draw(renderer, 0, 0);
162 void Mesh::draw_instanced(Renderer &renderer, const VertexSetup &vs, unsigned count) const
164 if(vs.get_vertex_array()!=&vertices)
165 throw invalid_argument("Mesh::draw_instanced");
167 draw(renderer, &vs, count);
170 void Mesh::draw(Renderer &renderer, const VertexSetup *vs, unsigned count) const
174 manager->resource_used(*this);
175 if(disallow_rendering)
185 renderer.set_vertex_setup(vs ? vs : &vtx_setup);
186 renderer.set_winding_test(winding);
190 for(vector<Batch>::const_iterator i=batches.begin(); i!=batches.end(); ++i)
195 for(vector<Batch>::const_iterator i=batches.begin(); i!=batches.end(); ++i)
196 renderer.draw_instanced(*i, count);
200 void Mesh::resize_buffers() const
202 if(dirty&VERTEX_BUFFER)
203 vbuf->storage(vertices.get_required_buffer_size());
204 if((dirty&INDEX_BUFFER) && !batches.empty())
205 ibuf->storage(batches.front().get_required_buffer_size());
209 Resource::AsyncLoader *Mesh::load(IO::Seekable &io, const Resources *)
211 return new AsyncLoader(*this, io);
214 UInt64 Mesh::get_data_size() const
218 size += vbuf->get_size();
220 size += ibuf->get_size();
227 vertices.use_buffer(0);
236 void Mesh::set_debug_name(const string &name)
241 vbuf->set_debug_name(name+" [VBO]");
243 ibuf->set_debug_name(name+" [IBO]");
244 vtx_setup.set_debug_name(name+" [VAO]");
251 Mesh::Loader::Loader(Mesh &m, bool g):
252 DataFile::ObjectLoader<Mesh>(m),
255 add("batch", &Loader::batch);
256 add("storage", &Loader::storage);
257 add("vertices", &Loader::vertices);
258 add("vertices", &Loader::vertices_with_format);
259 add("winding", &Loader::winding);
262 void Mesh::Loader::storage(const vector<VertexAttribute> &a)
265 throw invalid_argument("No vertex attributes");
268 for(vector<VertexAttribute>::const_iterator i=a.begin(); i!=a.end(); ++i)
273 void Mesh::Loader::vertices()
275 load_sub(obj.vertices);
277 obj.check_buffers(VERTEX_BUFFER);
280 void Mesh::Loader::vertices_with_format(const vector<VertexAttribute> &a)
286 void Mesh::Loader::batch(PrimitiveType p)
293 void Mesh::Loader::winding(FaceWinding w)
296 obj.winding = &WindingTest::clockwise();
297 else if(w==COUNTERCLOCKWISE)
298 obj.winding = &WindingTest::counterclockwise();
302 Mesh::AsyncLoader::AsyncLoader(Mesh &m, IO::Seekable &i):
309 mesh.disallow_rendering = true;
310 mesh.check_buffers(VERTEX_BUFFER|INDEX_BUFFER);
313 Mesh::AsyncLoader::~AsyncLoader()
315 mesh.disallow_rendering = false;
316 delete vertex_updater;
317 delete index_updater;
320 bool Mesh::AsyncLoader::needs_sync() const
325 bool Mesh::AsyncLoader::process()
329 // TODO use correct filename
330 DataFile::Parser parser(io, "async");
331 Loader loader(mesh, false);
336 mesh.resize_buffers();
337 vertex_updater = mesh.vertices.refresh_async();
338 if(!mesh.batches.empty())
339 index_updater = mesh.batches.front().refresh_async();
344 vertex_updater->upload_data();
346 index_updater->upload_data();
350 delete vertex_updater;
352 delete index_updater;
357 if(phase==1 && !mesh.vbuf && !mesh.ibuf)