ellipsoid_renderer.cxx

#include "ellipsoid_renderer.h"
#include <cgv_gl/gl/gl.h>
#include <cgv_gl/gl/gl_tools.h>
 
namespace cgv {
    namespace render {
        ellipsoid_renderer& ref_ellipsoid_renderer(context& ctx, int ref_count_change)
        {
            static int ref_count = 0;
            static ellipsoid_renderer r;
            r.manage_singleton(ctx, "ellipsoid_renderer", ref_count, ref_count_change);
            return r;
        }
 
        render_style* ellipsoid_renderer::create_render_style() const
        {
            return new ellipsoid_render_style();
        }
 
        ellipsoid_render_style::ellipsoid_render_style()
        {
            size_scale = 1;
            size = 1;
        }
 
        ellipsoid_renderer::ellipsoid_renderer()
        {
            has_sizes = false;
            has_orientations = false;
            cull_per_primitive = false;
        }
        void ellipsoid_renderer::enable_attribute_array_manager(const context& ctx, attribute_array_manager& aam)
        {
            surface_renderer::enable_attribute_array_manager(ctx, aam);
            if (has_attribute(ctx, "size"))
                has_sizes = true;
            if (has_attribute(ctx, "orientation"))
                has_orientations = true;
        }
        void ellipsoid_renderer::disable_attribute_array_manager(const context& ctx, attribute_array_manager& aam)
        {
            surface_renderer::disable_attribute_array_manager(ctx, aam);
            has_sizes = false;
            has_orientations = false;
        }
        void ellipsoid_renderer::remove_size_array(const context& ctx) {
            has_sizes = false;
            remove_attribute_array(ctx, "size");
        }
        void ellipsoid_renderer::remove_orientation_array(const context& ctx) {
            has_orientations = false;
            remove_attribute_array(ctx, "orientation");
        }
        bool ellipsoid_renderer::build_shader_program(context& ctx, shader_program& prog, const shader_define_map& defines)
        {
            return prog.build_program(ctx, "ellipsoid.glpr", true, defines);
        }
        bool ellipsoid_renderer::validate_attributes(const context& ctx) const
        {
            const ellipsoid_render_style& rs = get_style<ellipsoid_render_style>();
            return surface_renderer::validate_attributes(ctx);
        }
        bool ellipsoid_renderer::enable(context& ctx)
        {
            const ellipsoid_render_style& rs = get_style<ellipsoid_render_style>();
 
            if (!surface_renderer::enable(ctx))
                return false;
 
            if (!ref_prog().is_linked())
                return false;
            
            if (!has_sizes)
                ref_prog().set_attribute(ctx, "size", rs.size);
 
            if (!has_orientations)
                ref_prog().set_attribute(ctx, "orientation", cgv::math::quaternion<float>());
 
            ref_prog().set_uniform(ctx, "size_scale", rs.size_scale);
            return true;
        }
 
        bool ellipsoid_renderer::disable(context& ctx)
        {
            if (!attributes_persist()) {
                has_sizes = false;
                has_orientations = false;
            }
            return surface_renderer::disable(ctx);
        }
 
        void ellipsoid_renderer::draw(context& ctx, size_t start, size_t count, bool use_strips, bool use_adjacency, uint32_t strip_restart_index)
        {
            draw_impl(ctx, PT_POINTS, start, count, false, false, -1);
        }
 
        bool ellipsoid_render_style_reflect::self_reflect(cgv::reflect::reflection_handler& rh)
        {
            return
                rh.reflect_base(*static_cast<surface_render_style*>(this)) &&
                rh.reflect_member("size_scale", size_scale);
        }
 
        cgv::reflect::extern_reflection_traits<ellipsoid_render_style, ellipsoid_render_style_reflect> get_reflection_traits(const ellipsoid_render_style&)
        {
            return cgv::reflect::extern_reflection_traits<ellipsoid_render_style, ellipsoid_render_style_reflect>();
        }
    }
}
 
#include <cgv/gui/provider.h>
 
namespace cgv {
    namespace gui {
 
        struct ellipsoid_render_style_gui_creator : public gui_creator
        {
            bool create(provider* p, const std::string& label,
                void* value_ptr, const std::string& value_type,
                const std::string& gui_type, const std::string& options, bool*)
            {
                if (value_type != cgv::type::info::type_name<cgv::render::ellipsoid_render_style>::get_name())
                    return false;
                cgv::render::ellipsoid_render_style* rs_ptr = reinterpret_cast<cgv::render::ellipsoid_render_style*>(value_ptr);
                cgv::base::base* b = dynamic_cast<cgv::base::base*>(p);
 
                p->add_member_control(b, "Default Size", rs_ptr->size, "value_slider", "min=0.01;max=100;log=true;ticks=true");
                p->add_member_control(b, "Size Scale", rs_ptr->size_scale, "value_slider", "min=0.01;max=100;log=true;ticks=true");
                
                p->add_gui("surface_render_style", *static_cast<cgv::render::surface_render_style*>(rs_ptr));
                return true;
            }
        };
 
#include "gl/lib_begin.h"
 
CGV_API cgv::gui::gui_creator_registration<ellipsoid_render_style_gui_creator> ellipsoid_rs_gc_reg("ellipsoid_render_style_gui_creator");
 
    }
}