+++ /dev/null
-#include "batch.h"
-#include "buffer.h"
-#include "camera.h"
-#include "clipping.h"
-#include "error.h"
-#include "lighting.h"
-#include "material.h"
-#include "program.h"
-#include "programdata.h"
-#include "renderable.h"
-#include "renderer.h"
-#include "sampler.h"
-#include "texture.h"
-#include "texturing.h"
-#include "texunit.h"
-#include "vertexarray.h"
-#include "vertexsetup.h"
-#include "windingtest.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-Renderer::Renderer():
- default_camera(0)
-{
- init();
-}
-
-Renderer::Renderer(const Camera *c):
- default_camera(c)
-{
- init();
-
- if(c)
- set_camera(*c);
-}
-
-void Renderer::init()
-{
- state_stack.reserve(16);
- state_stack.push_back(State());
- shdata_stack.reserve(32);
- state = &state_stack.back();
-
- standard_shdata.uniform("projection_matrix", Matrix());
- standard_shdata.uniform("eye_world_matrix", Matrix());
-}
-
-Renderer::~Renderer()
-{
- end();
-}
-
-void Renderer::set_camera(const Camera &c)
-{
- state->camera = &c;
- standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix());
- standard_shdata.uniform("eye_world_matrix", state->camera->get_view_matrix());
- changed |= STANDARD_SHDATA;
- set_matrix(state->camera->get_view_matrix());
-}
-
-void Renderer::set_matrix(const Matrix &matrix)
-{
- state->modelview_matrix = matrix;
- changed |= MATRIX;
-}
-
-void Renderer::transform(const Matrix &matrix)
-{
- state->modelview_matrix *= matrix;
- changed |= MATRIX;
-}
-
-void Renderer::set_texture(const Texture *t, const Sampler *s)
-{
- state->texture = t;
- state->sampler = s;
- state->texturing = 0;
-}
-
-void Renderer::set_texturing(const Texturing *t)
-{
- state->texturing = t;
- state->texture = 0;
- state->sampler = 0;
-}
-
-unsigned Renderer::allocate_effect_texunit()
-{
- return --state->lowest_effect_texunit;
-}
-
-void Renderer::set_material(const Material *m)
-{
- state->material = m;
- changed |= MATERIAL_SHDATA;
-}
-
-void Renderer::set_lighting(const Lighting *l)
-{
- state->lighting = l;
- state->lighting_matrix = state->modelview_matrix;
- if(l)
- {
- l->update_shader_data(standard_shdata, state->lighting_matrix);
- changed |= STANDARD_SHDATA;
- }
-}
-
-void Renderer::set_clipping(const Clipping *c)
-{
- state->clipping = c;
- state->clipping_matrix = state->modelview_matrix;
- if(c)
- {
- c->update_shader_data(standard_shdata, state->clipping_matrix);
- changed |= STANDARD_SHDATA;
- }
-}
-
-void Renderer::set_shader_program(const Program *p, const ProgramData *d)
-{
- state->shprog = p;
- if(p && d)
- add_shader_data(*d);
-}
-
-void Renderer::add_shader_data(const ProgramData &d)
-{
- if(state->shdata_count<shdata_stack.size() && shdata_stack[state->shdata_count]==&d)
- ++state->shdata_count;
- else
- {
- flush_shader_data();
- shdata_stack.push_back(&d);
- state->shdata_count = shdata_stack.size();
- changed |= SHADER_DATA;
- }
-}
-
-void Renderer::flush_shader_data()
-{
- if(shdata_stack.size()>state->shdata_count)
- shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
-}
-
-void Renderer::set_vertex_setup(const VertexSetup *vs)
-{
- state->vertex_setup = vs;
-}
-
-void Renderer::set_winding_test(const WindingTest *w)
-{
- state->winding_test = w;
-}
-
-void Renderer::set_reverse_winding(bool r)
-{
- state->reverse_winding = r;
-}
-
-void Renderer::set_object_lod_bias(unsigned b)
-{
- state->object_lod_bias = b;
-}
-
-void Renderer::push_state()
-{
- state_stack.push_back(state_stack.back());
- state = &state_stack.back();
-}
-
-void Renderer::pop_state()
-{
- if(state_stack.size()==1)
- throw stack_underflow("Renderer::pop_state");
-
- const Camera *old_camera = state->camera;
- const Lighting *old_lighting = state->lighting;
- const Clipping *old_clipping = state->clipping;
- state_stack.pop_back();
- state = &state_stack.back();
- changed |= MATRIX;
- bool camera_changed = (state->camera!=old_camera);
- if(camera_changed)
- {
- if(state->camera)
- {
- standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix());
- standard_shdata.uniform("eye_world_matrix", state->camera->get_view_matrix());
- }
- else
- {
- standard_shdata.uniform("projection_matrix", Matrix());
- standard_shdata.uniform("eye_world_matrix", Matrix());
- }
- changed |= STANDARD_SHDATA;
- }
- /* This actually should compare the relevant matrices rather than check for
- camera, but in practice lighting and clipping is set right after the camera
- and a boolean check is much faster than matrix comparison. */
- if(state->lighting!=old_lighting || camera_changed)
- {
- if(state->lighting)
- {
- state->lighting->update_shader_data(standard_shdata, state->lighting_matrix);
- changed |= STANDARD_SHDATA;
- }
- }
- if(state->clipping!=old_clipping || camera_changed)
- {
- if(state->clipping)
- {
- state->clipping->update_shader_data(standard_shdata, state->clipping_matrix);
- changed |= STANDARD_SHDATA;
- }
- }
-}
-
-void Renderer::end()
-{
- if(state_stack.size()>1)
- throw invalid_operation("Renderer::end");
-
- *state = State();
- if(default_camera)
- set_camera(*default_camera);
- else
- standard_shdata.uniform("projection_matrix", Matrix());
- shdata_stack.clear();
- excluded.clear();
-
- Texturing::unbind();
- Texture::unbind_from(0);
- Clipping::unbind();
- Program::unbind();
- VertexSetup::unbind();
- Buffer::unbind_from(ELEMENT_ARRAY_BUFFER);
- WindingTest::unbind();
-}
-
-void Renderer::exclude(const Renderable &renderable)
-{
- excluded.insert(&renderable);
-}
-
-void Renderer::include(const Renderable &renderable)
-{
- excluded.erase(&renderable);
-}
-
-void Renderer::render(const Renderable &renderable, const Tag &tag)
-{
- if(!excluded.count(&renderable))
- renderable.render(*this, tag);
-}
-
-void Renderer::draw(const Batch &batch)
-{
- apply_state();
-
- batch.draw();
-}
-
-void Renderer::draw_instanced(const Batch &batch, unsigned count)
-{
- apply_state();
-
- batch.draw_instanced(count);
-}
-
-void Renderer::apply_state()
-{
- if(!state->shprog)
- throw invalid_operation("Renderer::apply_state");
-
- /* We (mostly) let the objects themselves figure out if the binding has
- changed */
-
- if(state->texturing)
- state->texturing->bind();
- else
- {
- Texturing::unbind();
- if(state->texture)
- {
- if(state->sampler)
- state->sampler->bind_to(0);
- else
- Sampler::unbind_from(0);
- state->texture->bind_to(0);
- }
- else
- Texture::unbind_from(0);
- }
-
- if(state->clipping)
- state->clipping->bind();
- else
- Clipping::unbind();
-
- bool shprog_changed = (state->shprog!=Program::current());
- state->shprog->bind();
-
- if(changed&MATRIX)
- {
- standard_shdata.uniform("eye_obj_matrix", state->modelview_matrix);
- LinAl::SquareMatrix<float, 3> nm = state->modelview_matrix.block<3, 3>(0, 0);
- nm = transpose(invert(nm));
- standard_shdata.uniform_matrix3("eye_obj_normal_matrix", &nm(0, 0));
- changed = (changed&~MATRIX)|STANDARD_SHDATA;
- }
-
- if(state->material && ((changed&MATERIAL_SHDATA) || shprog_changed))
- {
- state->material->get_shader_data().apply();
- changed &= ~MATERIAL_SHDATA;
- }
-
- if((changed&STANDARD_SHDATA) || shprog_changed)
- {
- standard_shdata.apply();
- changed &= ~STANDARD_SHDATA;
- }
-
- bool extra_shdata = (shdata_stack.size()>state->shdata_count);
-
- if((changed&SHADER_DATA) || shprog_changed || extra_shdata)
- {
- if(extra_shdata)
- shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
- for(vector<const ProgramData *>::const_iterator i=shdata_stack.begin(); i!=shdata_stack.end(); ++i)
- (*i)->apply();
- changed &= ~SHADER_DATA;
- }
-
- if(state->vertex_setup)
- state->vertex_setup->bind();
- else
- VertexSetup::unbind();
-
- if(state->winding_test)
- {
- if(state->reverse_winding)
- state->winding_test->get_reverse().bind();
- else
- state->winding_test->bind();
- }
- else
- WindingTest::unbind();
-}
-
-
-Renderer::State::State():
- camera(0),
- texture(0),
- texturing(0),
- lowest_effect_texunit(TexUnit::get_n_units()),
- material(0),
- lighting(0),
- clipping(0),
- shprog(0),
- shdata_count(0),
- vertex_setup(0),
- winding_test(0),
- reverse_winding(false),
- object_lod_bias(0)
-{ }
-
-} // namespace GL
-} // namespace Msp
projects / libs / gl.git / blobdiff