src/graphics/OutlineMesh.hpp

   1 #ifndef BLANK_GRAPHICS_OUTLINEMESH_HPP_
   2 #define BLANK_GRAPHICS_OUTLINEMESH_HPP_
   3
   4 #include "VertexArray.hpp"
   5
   6 #include <vector>
   7 #include <GL/glew.h>
   8 #include <glm/glm.hpp>
   9
  10
  11 namespace blank {
  12
  13 class OutlineMesh {
  14
  15 public:
  16         using Position = glm::vec3;
  17         using Color = glm::vec3;
  18         using Index = unsigned short;
  19
  20         using Positions = std::vector<Position>;
  21         using Colors = std::vector<Color>;
  22         using Indices = std::vector<Index>;
  23
  24         enum Attribute {
  25                 ATTRIB_VERTEX,
  26                 ATTRIB_COLOR,
  27                 ATTRIB_INDEX,
  28                 ATTRIB_COUNT,
  29         };
  30
  31         struct Buffer {
  32
  33                 Positions vertices;
  34                 Colors colors;
  35                 Indices indices;
  36
  37                 void Clear() noexcept {
  38                         vertices.clear();
  39                         colors.clear();
  40                         indices.clear();
  41                 }
  42
  43                 void Reserve(size_t p, size_t i) {
  44                         vertices.reserve(p);
  45                         colors.reserve(p);
  46                         indices.reserve(i);
  47                 }
  48
  49         };
  50
  51         using VAO = VertexArray<ATTRIB_COUNT>;
  52
  53 public:
  54         void Update(const Buffer &) noexcept;
  55
  56         void Draw() noexcept;
  57
  58 private:
  59         VAO vao;
  60
  61 };
  62
  63 }
  64
  65 #endif