5 #include "framebuffer.h"
9 #include "programdata.h"
10 #include "renderable.h"
12 #include "resourcemanager.h"
13 #include "resources.h"
16 #include "vertexarray.h"
17 #include "vertexsetup.h"
25 placeholder_texture(Resources::get_global().get<Texture>("_placeholder.png"))
27 state_stack.reserve(16);
28 shdata_stack.reserve(32);
29 texture_stack.reserve(32);
32 void Renderer::begin()
35 throw invalid_operation("Renderer::begin");
38 state_stack.emplace_back();
39 current_state = &state_stack.back();
41 RendererBackend::begin();
43 add_shader_data(standard_shdata);
44 commands.begin_frame(frame_index);
49 if(!current_state || state_stack.size()>1)
50 throw invalid_operation("Renderer::end");
52 RendererBackend::end();
56 texture_stack.clear();
60 void Renderer::push_state()
62 if(state_stack.empty())
63 throw invalid_operation("Renderer::push_state");
65 state_stack.push_back(state_stack.back());
66 current_state = &state_stack.back();
69 void Renderer::pop_state()
71 if(state_stack.size()==1)
72 throw stack_underflow("Renderer::pop_state");
74 state_stack.pop_back();
75 current_state = &state_stack.back();
79 Renderer::State &Renderer::get_state() const
83 throw invalid_operation("Renderer::get_state");
85 return *current_state;
88 void Renderer::set_camera(const Camera &c)
90 get_state().camera = &c;
91 add_shader_data(c.get_shader_data());
95 void Renderer::set_matrix(const Matrix &matrix)
97 get_state().model_matrix = matrix;
101 void Renderer::set_framebuffer(const Framebuffer *f)
103 get_state().framebuffer = f;
106 void Renderer::set_viewport(const Rect *v)
108 get_state().viewport = v;
111 void Renderer::set_scissor(const Rect *s)
113 get_state().scissor = s;
116 void Renderer::set_shader_program(const Program *p, const ProgramData *d)
118 get_state().shprog = p;
123 void Renderer::add_shader_data(const ProgramData &d)
125 State &state = get_state();
127 if(state.shdata_count<shdata_stack.size())
129 const BoundProgramData &top = shdata_stack.back();
130 if(top.shdata==&d && top.generation==d.get_generation())
132 ++state.shdata_count;
138 shdata_stack.push_back(&d);
139 state.shdata_count = shdata_stack.size();
140 changed |= SHADER_DATA;
143 void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
145 set_texture(tag, tex, -1, samp);
148 void Renderer::set_texture(Tag tag, const Texture *tex, int level, const Sampler *samp)
150 State &state = get_state();
154 if(ResourceManager *res_mgr = tex->get_manager())
155 res_mgr->resource_used(*tex);
156 if(!tex->is_loaded())
157 tex = &placeholder_texture;
160 if(texture_stack.size()>state.texture_count)
162 BoundTexture &bt = texture_stack[state.texture_count];
163 if(bt.tag==tag && bt.texture==tex && bt.sampler==samp)
165 ++state.texture_count;
172 for(auto i=texture_stack.end(); i!=texture_stack.begin(); )
175 i->replaced = texture_stack.size();
179 texture_stack.emplace_back();
180 BoundTexture &bound_tex = texture_stack.back();
182 bound_tex.texture = tex;
183 bound_tex.sampler = samp;
184 bound_tex.level = level;
185 state.texture_count = texture_stack.size();
188 void Renderer::flush_shader_data()
190 const State &state = get_state();
192 if(shdata_stack.size()>state.shdata_count)
193 shdata_stack.erase(shdata_stack.begin()+state.shdata_count, shdata_stack.end());
196 void Renderer::flush_textures()
198 const State &state = get_state();
200 for(unsigned i=0; i<state.texture_count; ++i)
201 if(texture_stack[i].replaced>=static_cast<int>(state.texture_count))
202 texture_stack[i].replaced = -1;
204 texture_stack.erase(texture_stack.begin()+state.texture_count, texture_stack.end());
207 void Renderer::set_vertex_setup(const VertexSetup *vs)
209 get_state().vertex_setup = vs;
212 void Renderer::set_front_face(FaceWinding winding)
214 get_state().front_face = winding;
217 void Renderer::set_face_cull(CullMode cull)
219 get_state().face_cull = cull;
222 void Renderer::set_depth_test(const DepthTest *dt)
224 get_state().depth_test = dt;
227 void Renderer::set_stencil_test(const StencilTest *st)
229 get_state().stencil_test = st;
232 void Renderer::set_blend(const Blend *b)
234 get_state().blend = b;
237 void Renderer::set_object_lod_bias(unsigned b)
239 get_state().object_lod_bias = b;
242 void Renderer::clear(const ClearValue *values)
245 commands.use_pipeline(&pipeline_state);
246 commands.clear(values);
249 void Renderer::draw(const Batch &batch)
252 batch.refresh(frame_index);
253 pipeline_state.set_primitive_type(batch.get_type());
254 commands.use_pipeline(&pipeline_state);
255 commands.draw(batch);
258 void Renderer::draw_instanced(const Batch &batch, unsigned count)
261 batch.refresh(frame_index);
262 pipeline_state.set_primitive_type(batch.get_type());
263 commands.use_pipeline(&pipeline_state);
264 commands.draw_instanced(batch, count);
267 void Renderer::resolve_multisample(Framebuffer &target)
269 const State &state = get_state();
271 if(!state.framebuffer)
272 throw invalid_operation("Renderer::resolve_multisample");
274 unsigned width = state.framebuffer->get_width();
275 unsigned height = state.framebuffer->get_height();
276 if(target.get_width()!=width || target.get_height()!=height)
277 throw incompatible_data("Renderer::resolve_multisample");
279 pipeline_state.set_framebuffer(state.framebuffer);
280 commands.use_pipeline(&pipeline_state);
281 commands.resolve_multisample(target);
284 void Renderer::begin_query(const QueryPool &pool, unsigned index)
286 commands.begin_query(pool, index);
289 void Renderer::end_query(const QueryPool &pool, unsigned index)
291 commands.end_query(pool, index);
294 void Renderer::apply_framebuffer()
296 const State &state = get_state();
298 pipeline_state.set_framebuffer(state.framebuffer);
299 static const Rect default_rect = Rect::max();
300 pipeline_state.set_viewport(state.viewport ? *state.viewport : default_rect);
301 pipeline_state.set_scissor(state.scissor ? *state.scissor : default_rect);
304 void Renderer::apply_state()
306 const State &state = get_state();
309 throw invalid_operation("Renderer::apply_state");
313 bool shprog_changed = (state.shprog!=pipeline_state.get_shader_program());
314 pipeline_state.set_shader_program(state.shprog);
318 standard_shdata.uniform("world_obj_matrix", state.model_matrix);
319 LinAl::SquareMatrix<float, 3> nm = state.model_matrix.block<3, 3>(0, 0);
320 nm = transpose(invert(nm));
321 standard_shdata.uniform("world_obj_normal_matrix", nm);
325 bool shdata_changed = changed&SHADER_DATA;
326 for(auto i=shdata_stack.begin(); (!shdata_changed && i!=shdata_stack.end()); ++i)
327 shdata_changed = (i->shdata->get_generation()!=i->generation);
328 bool extra_shdata = (shdata_stack.size()>state.shdata_count);
330 if(shdata_changed || shprog_changed || extra_shdata)
333 shdata_stack.erase(shdata_stack.begin()+state.shdata_count, shdata_stack.end());
334 for(const BoundProgramData &d: shdata_stack)
336 d.shdata->apply(*state.shprog, pipeline_state, frame_index);
337 d.generation = d.shdata->get_generation();
339 changed &= ~SHADER_DATA;
342 if(state.vertex_setup)
344 if(const VertexArray *array = state.vertex_setup->get_vertex_array())
345 array->refresh(frame_index);
346 if(const VertexArray *array = state.vertex_setup->get_instance_array())
347 array->refresh(frame_index);
349 pipeline_state.set_vertex_setup(state.vertex_setup);
351 pipeline_state.set_front_face(state.front_face);
352 pipeline_state.set_face_cull(state.face_cull);
354 if(state.texture_count<texture_stack.size())
357 for(const BoundTexture &t: texture_stack)
358 if(t.texture && t.replaced<0)
360 if(t.binding<0 || shprog_changed)
361 t.binding = state.shprog->get_uniform_binding(t.tag);
363 pipeline_state.set_texture(t.binding, t.texture, t.level, t.sampler);
366 static const DepthTest default_depth_test;
367 pipeline_state.set_depth_test(state.depth_test ? *state.depth_test : default_depth_test);
368 static const StencilTest default_stencil_test;
369 pipeline_state.set_stencil_test(state.stencil_test ? *state.stencil_test : default_stencil_test);
370 static const Blend default_blend;
371 pipeline_state.set_blend(state.blend ? *state.blend : default_blend);
375 Renderer::BoundProgramData::BoundProgramData(const ProgramData *d):