vertex_decl.h

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#pragma once
 
#include <bgfx/bgfx.h>
 
namespace gfx
{
 
using vertex_layout = bgfx::VertexLayout;
using attribute = bgfx::Attrib::Enum;
using attribute_type = bgfx::AttribType::Enum;
 
template<typename T>
struct vertex
{
    static auto get_layout() -> const vertex_layout&
    {
        static vertex_layout s_decl = []()
        {
            vertex_layout decl;
            T::init(decl);
            return decl;
        }();
        return s_decl;
    }
};
 
struct screen_pos_vertex : vertex<screen_pos_vertex>
{
    float x = 0.0f;
    float y = 0.0f;
 
    static void init(vertex_layout& decl);
};
 
struct pos_vertex : vertex<pos_vertex>
{
    float x = 0.0f;
    float y = 0.0f;
    float z = 0.0f;
 
    static void init(vertex_layout& decl);
};
 
struct pos_texcoord0_vertex : vertex<pos_texcoord0_vertex>
{
    float x = 0.0f;
    float y = 0.0f;
    float z = 0.0f;
 
    float u = 0.0f;
    float v = 0.0f;
 
    static void init(vertex_layout& decl);
};
 
struct mesh_vertex : vertex<mesh_vertex>
{
    static void init(vertex_layout& decl);
};
 
struct pos_texcoord0_color0_vertex : vertex<pos_texcoord0_color0_vertex>
{
    static void init(vertex_layout& decl);
};
} // namespace gfx