X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frenderer.cpp;h=c5fe3c64a8baca0d39b7966d43edc61c3efa9be4;hp=184d326928381722e5766eed46e030b572278771;hb=HEAD;hpb=50a0c7fd661fe6bfa3f929ad66e47cfab4a0fb87 diff --git a/source/renderer.cpp b/source/renderer.cpp deleted file mode 100644 index 184d3269..00000000 --- a/source/renderer.cpp +++ /dev/null @@ -1,368 +0,0 @@ -#include "batch.h" -#include "buffer.h" -#include "camera.h" -#include "error.h" -#include "lighting.h" -#include "material.h" -#include "mesh.h" -#include "program.h" -#include "programdata.h" -#include "renderable.h" -#include "renderer.h" -#include "texture.h" -#include "texturing.h" -#include "texunit.h" -#include "vertexarray.h" -#include "windingtest.h" - -using namespace std; - -namespace Msp { -namespace GL { - -Renderer::Renderer(const Camera *c): - mtx_stack(*this), - changed(0), - matrices_loaded(false), - shdata_applied(0), - camera(0), - state_stack(1) -{ - state_stack.reserve(16); - shdata_stack.reserve(32); - state = &state_stack.back(); - - begin(c); -} - -Renderer::~Renderer() -{ - end(); -} - -void Renderer::begin(const Camera *c) -{ - if(state_stack.size()>1) - throw invalid_operation("Renderer::begin"); - - reset_state(); - excluded.clear(); - camera = c; - - if(camera) - { - mtx_stack.load(camera->get_matrix()); - standard_shdata.uniform("projection_matrix", camera->get_projection_matrix()); - } - else - { - mtx_stack.load(MatrixStack::modelview().top()); - standard_shdata.uniform("projection_matrix", MatrixStack::projection().top()); - } -} - -void Renderer::set_texture(const Texture *t) -{ - state->texture = t; - state->texturing = 0; -} - -void Renderer::set_texturing(const Texturing *t) -{ - state->texturing = t; - state->texture = 0; -} - -unsigned Renderer::allocate_effect_texunit() -{ - return --state->lowest_effect_texunit; -} - -void Renderer::set_material(const Material *m) -{ - state->material = m; -} - -void Renderer::set_lighting(const Lighting *l) -{ - state->lighting = l; - state->lighting_matrix = mtx_stack.top(); - if(l) - l->update_shader_data(standard_shdata, mtx_stack.top()); - changed |= LIGHTING; -} - -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) -{ - shdata_stack.push_back(&d); - state->shdata_count = shdata_stack.size(); - changed |= SHADER_DATA; -} - -void Renderer::set_mesh(const Mesh *m) -{ - state->mesh = m; -} - -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::push_state() -{ - state_stack.push_back(state_stack.back()); - state = &state_stack.back(); - mtx_stack.push(); -} - -void Renderer::pop_state() -{ - if(state_stack.size()==1) - throw stack_underflow("Renderer::pop_state"); - - const Lighting *old_lighting = state->lighting; - state_stack.pop_back(); - state = &state_stack.back(); - if(shdata_stack.size()>state->shdata_count) - { - shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end()); - changed |= SHADER_DATA; - } - shdata_applied = min(shdata_applied, shdata_stack.size()); - mtx_stack.pop(); - changed |= MATRIX; - if(state->lighting!=old_lighting) - { - if(state->lighting) - state->lighting->update_shader_data(standard_shdata, state->lighting_matrix); - changed |= LIGHTING; - } -} - -void Renderer::escape() -{ - apply_state(); - Buffer::unbind_from(ELEMENT_ARRAY_BUFFER); - matrices_loaded = false; -} - -void Renderer::end() -{ - if(state_stack.size()>1) - throw invalid_operation("Renderer::end"); - - reset_state(); - - Mesh::unbind(); - Texturing::unbind(); - Texture::unbind_from(0); - Material::unbind(); - Lighting::unbind(); - Program::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(); - - bool legacy_bindings = (!state->shprog || state->shprog->uses_legacy_variables()); - if(state->mesh && legacy_bindings) - { - if(const Buffer *ibuf = state->mesh->get_index_buffer()) - ibuf->bind_to(ELEMENT_ARRAY_BUFFER); - else - Buffer::unbind_from(ELEMENT_ARRAY_BUFFER); - } - - batch.draw(); -} - -void Renderer::apply_state() -{ - /* We (mostly) let the objects themselves figure out if the binding has - changed */ - - bool legacy_bindings = (!state->shprog || state->shprog->uses_legacy_variables()); - - if(state->texturing) - state->texturing->bind(); - else - { - Texturing::unbind(); - if(state->texture) - state->texture->bind_to(0); - else - Texture::unbind_from(0); - } - - if(legacy_bindings) - { - if(state->material) - state->material->bind(); - else - Material::unbind(); - - if(changed&LIGHTING) - { - if(state->lighting) - { - MatrixStack::modelview() = state->lighting_matrix; - state->lighting->bind(); - changed = (changed&~LIGHTING)|LEGACY_MATRIX; - } - else - Lighting::unbind(); - } - } - - if(state->shprog) - { - bool shprog_changed = (state->shprog!=Program::current()); - state->shprog->bind(); - - if(!legacy_bindings) - { - if(changed&MODERN_MATRIX) - { - const Matrix &m = mtx_stack.top(); - standard_shdata.uniform("eye_obj_matrix", mtx_stack.top()); - LinAl::SquareMatrix nm = m.block<3, 3>(0, 0); - nm = transpose(invert(nm)); - standard_shdata.uniform_matrix3("eye_obj_normal_matrix", &nm(0, 0)); - changed &= ~MODERN_MATRIX; - } - - if(state->material) - state->material->get_shader_data().apply(); - standard_shdata.apply(); - } - - if((changed&SHADER_DATA) || shprog_changed) - { - vector::const_iterator i = shdata_stack.begin(); - if(!shprog_changed) - i += shdata_applied; - for(; i!=shdata_stack.end(); ++i) - (*i)->apply(); - changed &= ~SHADER_DATA; - shdata_applied = shdata_stack.size(); - } - } - else - Program::unbind(); - - if(state->mesh) - { - if(legacy_bindings) - { - Mesh::unbind(); - state->mesh->get_vertices().apply(); - } - else - state->mesh->bind(); - } - else - Mesh::unbind(); - - if(state->winding_test) - { - if(state->reverse_winding) - state->winding_test->get_reverse().bind(); - else - state->winding_test->bind(); - } - else - WindingTest::unbind(); - - if(legacy_bindings) - { - if(!matrices_loaded) - { - MatrixStack::modelview().push(); - if(camera) - { - MatrixStack::projection().push(); - camera->apply(); - } - matrices_loaded = true; - } - - if(changed&LEGACY_MATRIX) - { - MatrixStack::modelview() = mtx_stack.top(); - changed &= ~LEGACY_MATRIX; - } - } -} - -void Renderer::reset_state() -{ - if(!matrices_loaded) - return; - - if(camera) - MatrixStack::projection().pop(); - MatrixStack::modelview().pop(); - matrices_loaded = false; - changed |= MATRIX; - - *state = State(); -} - - -Renderer::State::State(): - texture(0), - texturing(0), - lowest_effect_texunit(TexUnit::get_n_units()), - material(0), - lighting(0), - shprog(0), - shdata_count(0), - mesh(0), - winding_test(0), - reverse_winding(false) -{ } - - -Renderer::MtxStack::MtxStack(Renderer &r): - renderer(r) -{ } - -void Renderer::MtxStack::update() -{ - renderer.changed |= MATRIX; -} - -} // namespace GL -} // namespace Msp