Gabriele Cosmo
143 lines
4.3 KiB
Plaintext
143 lines
4.3 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_sg_render_gstos
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#define tools_sg_render_gstos
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#include "gstos"
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#include "render_action"
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#include "gstos_add"
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namespace tools {
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namespace sg {
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class render_gstos : public gstos {
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typedef gstos parent;
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public:
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virtual void visit(gstos_add& a_visitor,draw_type a_style) = 0;
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protected: //gstos
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virtual unsigned int create_gsto(std::ostream&,sg::render_manager& a_mgr) {
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std::vector<float> gsto_data;
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gstos_add _add;
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visit(_add,draw_points);
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append(gsto_data,_add.m_xyzs);
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m_gstos_points_sz = _add.m_xyzs.size();
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_add.clear();
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visit(_add,draw_lines);
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append(gsto_data,_add.m_xyzs);
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m_gstos_lines_sz = _add.m_xyzs.size();
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_add.clear();
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visit(_add,draw_filled);
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append(gsto_data,_add.m_xyzs);
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m_gstos_tris_sz = _add.m_xyzs.size();
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append(gsto_data,_add.m_nms);
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m_gstos_nms_sz = _add.m_nms.size();
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if(gsto_data.empty()) return 0;
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return a_mgr.create_gsto_from_data(gsto_data);
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}
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public: //node
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bool gstos_render(render_action& a_action) {
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const state& state = a_action.state();
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bool draw_edges = false;
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if(state.m_draw_type==draw_filled) draw_edges = state.m_GL_LIGHTING?false:true;
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if(state.m_use_gsto) {
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unsigned int _id = get_gsto_id(a_action.out(),a_action.render_manager());
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if(_id) {
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bufpos pxyzs = 0;
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bufpos plines = pxyzs+m_gstos_points_sz*sizeof(float);
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bufpos ptris = plines+m_gstos_lines_sz*sizeof(float);
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bufpos pnms = ptris+m_gstos_tris_sz*sizeof(float);
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a_action.begin_gsto(_id);
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if(draw_edges) {
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//a_action.set_lighting(false); //NOTE : we should do that if style==draw_fill !
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a_action.color4f(0,0,0,1); //if lighten, then rendered grey.
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a_action.line_width(1);
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a_action.draw_gsto_v(gl::lines(),m_gstos_lines_sz/3,plines);
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//pushes back the filled polygons to avoid z-fighting with lines
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a_action.set_polygon_offset(true);
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a_action.color4f(state.m_color);
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a_action.line_width(state.m_line_width);
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//a_action.set_lighting(state.m_GL_LIGHTING);
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}
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if(state.m_draw_type==draw_points) {
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a_action.draw_gsto_v(gl::points(),m_gstos_points_sz/3,pxyzs);
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} else if(state.m_draw_type==draw_lines) {
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a_action.draw_gsto_v(gl::lines(),m_gstos_lines_sz/3,plines);
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} else {
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a_action.draw_gsto_vn(gl::triangles(),m_gstos_tris_sz/3,ptris,pnms);
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}
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if(draw_edges) a_action.set_polygon_offset(state.m_GL_POLYGON_OFFSET_FILL);
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a_action.end_gsto();
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return true;
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} else { //!_id
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// use immediate rendering.
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}
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} else {
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clean_gstos(&a_action.render_manager());
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}
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return false;
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}
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bool gstos_render_no_style(render_action& a_action) { //for sg::markers.
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const state& state = a_action.state();
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if(state.m_use_gsto) {
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unsigned int _id = get_gsto_id(a_action.out(),a_action.render_manager());
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if(_id) {
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bufpos pxyzs = 0;
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bufpos plines = pxyzs+m_gstos_points_sz*sizeof(float);
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bufpos ptris = plines+m_gstos_lines_sz*sizeof(float);
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bufpos pnms = ptris+m_gstos_tris_sz*sizeof(float);
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a_action.begin_gsto(_id);
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a_action.draw_gsto_v(gl::points(),m_gstos_points_sz/3,pxyzs);
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a_action.draw_gsto_v(gl::lines(),m_gstos_lines_sz/3,plines);
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a_action.draw_gsto_vn(gl::triangles(),m_gstos_tris_sz/3,ptris,pnms);
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a_action.end_gsto();
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return true;
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} else { //!_id
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// use immediate rendering.
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}
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} else {
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clean_gstos(&a_action.render_manager());
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}
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return false;
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}
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public:
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render_gstos():parent(),m_gstos_points_sz(0),m_gstos_lines_sz(0),m_gstos_tris_sz(0),m_gstos_nms_sz(0) {}
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virtual ~render_gstos() {}
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public:
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render_gstos(const render_gstos& a_from):parent(a_from),m_gstos_points_sz(0),m_gstos_lines_sz(0),m_gstos_tris_sz(0),m_gstos_nms_sz(0) {}
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render_gstos& operator=(const render_gstos& a_from){
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parent::operator=(a_from);
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m_gstos_points_sz = 0;
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m_gstos_lines_sz = 0;
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m_gstos_tris_sz = 0;
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m_gstos_nms_sz = 0;
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return *this;
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}
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protected:
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size_t m_gstos_points_sz;
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size_t m_gstos_lines_sz;
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size_t m_gstos_tris_sz;
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size_t m_gstos_nms_sz;
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};
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}}
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#endif
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