X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frenderer.cpp;h=76ac5846f2aad1e9417780e39d87f3c816a81088;hp=6a4c488f0b0ed81dcf1a9e35ce6f407f2651cf4f;hb=1efd559eb32adf48200941402ccefc6b5422aa4c;hpb=cdfdcecd046c494470bfb4cc1de66f6cfca5efec diff --git a/source/renderer.cpp b/source/renderer.cpp index 6a4c488f..76ac5846 100644 --- a/source/renderer.cpp +++ b/source/renderer.cpp @@ -22,18 +22,18 @@ 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); + if(c) + set_camera(*c); + else + standard_shdata.uniform("projection_matrix", Matrix()); } Renderer::~Renderer() @@ -43,33 +43,29 @@ Renderer::~Renderer() void Renderer::begin(const Camera *c) { - if(state_stack.size()>1) - throw invalid_operation("Renderer::begin"); - - reset_state(); - excluded.clear(); - camera = c; + end(); + if(c) + set_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_camera(const Camera &c) +{ + state->camera = &c; + standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix()); + changed |= STANDARD_SHDATA|LEGACY_PROJECTION; + set_matrix(state->camera->get_view_matrix()); } void Renderer::set_matrix(const Matrix &matrix) { - mtx_stack.load(matrix); + state->modelview_matrix = matrix; + changed |= MATRIX; } void Renderer::transform(const Matrix &matrix) { - mtx_stack *= matrix; + state->modelview_matrix *= matrix; + changed |= MATRIX; } void Renderer::set_texture(const Texture *t) @@ -92,24 +88,31 @@ unsigned Renderer::allocate_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 = mtx_stack.top(); + state->lighting_matrix = state->modelview_matrix; if(l) - l->update_shader_data(standard_shdata, mtx_stack.top()); - changed |= LIGHTING; + { + l->update_shader_data(standard_shdata, state->lighting_matrix); + changed |= STANDARD_SHDATA; + } + changed |= LEGACY_LIGHTING; } void Renderer::set_clipping(const Clipping *c) { state->clipping = c; - state->clipping_matrix = mtx_stack.top(); + state->clipping_matrix = state->modelview_matrix; if(c) - c->update_shader_data(standard_shdata, mtx_stack.top()); - changed |= CLIPPING; + { + c->update_shader_data(standard_shdata, state->clipping_matrix); + changed |= STANDARD_SHDATA; + } + changed |= LEGACY_CLIPPING; } void Renderer::set_shader_program(const Program *p, const ProgramData *d) @@ -121,9 +124,16 @@ void Renderer::set_shader_program(const Program *p, const ProgramData *d) void Renderer::add_shader_data(const ProgramData &d) { - shdata_stack.push_back(&d); - state->shdata_count = shdata_stack.size(); - changed |= SHADER_DATA; + if(state->shdata_countshdata_count]==&d) + ++state->shdata_count; + else + { + if(shdata_stack.size()>state->shdata_count) + shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end()); + shdata_stack.push_back(&d); + state->shdata_count = shdata_stack.size(); + changed |= SHADER_DATA; + } } void Renderer::set_mesh(const Mesh *m) @@ -145,7 +155,6 @@ void Renderer::push_state() { state_stack.push_back(state_stack.back()); state = &state_stack.back(); - mtx_stack.push(); } void Renderer::pop_state() @@ -153,54 +162,69 @@ 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(); - if(shdata_stack.size()>state->shdata_count) + changed |= MATRIX; + bool camera_changed = (state->camera!=old_camera); + if(camera_changed) { - shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end()); - changed |= SHADER_DATA; + if(state->camera) + standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix()); + else + standard_shdata.uniform("projection_matrix", Matrix()); + changed |= STANDARD_SHDATA|LEGACY_PROJECTION; } - shdata_applied = min(shdata_applied, shdata_stack.size()); - mtx_stack.pop(); - changed |= MATRIX; - if(state->lighting!=old_lighting) + /* 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 |= LIGHTING; + changed |= STANDARD_SHDATA; + } + changed |= LEGACY_LIGHTING; } - if(state->clipping!=old_clipping) + if(state->clipping!=old_clipping || camera_changed) { if(state->clipping) + { state->clipping->update_shader_data(standard_shdata, state->clipping_matrix); - changed |= CLIPPING; + changed |= STANDARD_SHDATA; + } + changed |= LEGACY_CLIPPING; } } -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(); + *state = State(); + shdata_stack.clear(); + excluded.clear(); Mesh::unbind(); Texturing::unbind(); Texture::unbind_from(0); Material::unbind(); Lighting::unbind(); + Clipping::unbind(); Program::unbind(); Buffer::unbind_from(ELEMENT_ARRAY_BUFFER); WindingTest::unbind(); + + if(matrices_loaded) + { + MatrixStack::projection().pop(); + MatrixStack::modelview().pop(); + matrices_loaded = false; + } } void Renderer::exclude(const Renderable &renderable) @@ -260,35 +284,35 @@ void Renderer::apply_state() else Material::unbind(); - if(changed&LIGHTING) + if(changed&LEGACY_LIGHTING) { if(state->lighting) { MatrixStack::modelview() = state->lighting_matrix; state->lighting->bind(); - changed = (changed&~LIGHTING)|LEGACY_MATRIX; + changed = (changed&~LEGACY_LIGHTING)|LEGACY_MATRIX; } else Lighting::unbind(); } } - if(changed&CLIPPING) + if(state->clipping) { - if(state->clipping) + if(legacy_bindings) { - if(legacy_bindings) + if(changed&LEGACY_CLIPPING) { MatrixStack::modelview() = state->clipping_matrix; state->clipping->bind(true); - changed = (changed&~CLIPPING)|LEGACY_MATRIX; + changed = (changed&~LEGACY_CLIPPING)|LEGACY_MATRIX; } - else - state->clipping->bind(false); } else - Clipping::unbind(); + state->clipping->bind(false); } + else + Clipping::unbind(); if(state->shprog) { @@ -299,28 +323,35 @@ void Renderer::apply_state() { 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); + standard_shdata.uniform("eye_obj_matrix", state->modelview_matrix); + LinAl::SquareMatrix 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 &= ~MODERN_MATRIX; + changed = (changed&~MODERN_MATRIX)|STANDARD_SHDATA; } - if(state->material) + if(state->material && ((changed&MATERIAL_SHDATA) || shprog_changed)) + { state->material->get_shader_data().apply(); - standard_shdata.apply(); + changed &= ~MATERIAL_SHDATA; + } + + if((changed&STANDARD_SHDATA) || shprog_changed) + { + standard_shdata.apply(); + changed &= ~STANDARD_SHDATA; + } } - if((changed&SHADER_DATA) || shprog_changed) + bool extra_shdata = (shdata_stack.size()>state->shdata_count); + + if((changed&SHADER_DATA) || shprog_changed || extra_shdata) { - vector::const_iterator i = shdata_stack.begin(); - if(!shprog_changed) - i += shdata_applied; - for(; i!=shdata_stack.end(); ++i) + if(extra_shdata) + shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end()); + for(vector::const_iterator i=shdata_stack.begin(); i!=shdata_stack.end(); ++i) (*i)->apply(); changed &= ~SHADER_DATA; - shdata_applied = shdata_stack.size(); } } else @@ -354,38 +385,27 @@ void Renderer::apply_state() if(!matrices_loaded) { MatrixStack::modelview().push(); - if(camera) - { - MatrixStack::projection().push(); - camera->apply(); - } + MatrixStack::projection().push(); matrices_loaded = true; } + if(changed&LEGACY_PROJECTION) + { + MatrixStack::projection() = state->camera->get_projection_matrix(); + changed &= ~LEGACY_PROJECTION; + } + if(changed&LEGACY_MATRIX) { - MatrixStack::modelview() = mtx_stack.top(); + MatrixStack::modelview() = state->modelview_matrix; 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(): + camera(0), texture(0), texturing(0), lowest_effect_texunit(TexUnit::get_n_units()), @@ -399,15 +419,5 @@ Renderer::State::State(): reverse_winding(false) { } - -Renderer::MtxStack::MtxStack(Renderer &r): - renderer(r) -{ } - -void Renderer::MtxStack::update() -{ - renderer.changed |= MATRIX; -} - } // namespace GL } // namespace Msp