src/graphics/Viewport.hpp

   1 #ifndef BLANK_GRAPHICS_VIEWPORT_HPP_
   2 #define BLANK_GRAPHICS_VIEWPORT_HPP_
   3
   4 #include "BlendedSprite.hpp"
   5 #include "BlockLighting.hpp"
   6 #include "Camera.hpp"
   7 #include "Canvas.hpp"
   8 #include "DirectionalLighting.hpp"
   9
  10 #include <glm/glm.hpp>
  11 #include <SDL.h>
  12
  13
  14 namespace blank {
  15
  16 class Viewport {
  17
  18 public:
  19         Viewport();
  20
  21         Viewport(const Viewport &) = delete;
  22         Viewport &operator =(const Viewport &) = delete;
  23
  24         void VSync(bool b) noexcept;
  25
  26         void EnableDepthTest() noexcept;
  27         void DisableDepthTest() noexcept;
  28
  29         void EnableBackfaceCulling() noexcept;
  30         void DisableBackfaceCulling() noexcept;
  31
  32         void EnableAlphaBlending() noexcept;
  33         void EnableInvertBlending() noexcept;
  34         void DisableBlending() noexcept;
  35
  36         void Resize(int w, int h) noexcept;
  37
  38         float Width() const noexcept { return canv.Size().x; }
  39         float Height() const noexcept { return canv.Size().y; }
  40
  41         void Clear() noexcept;
  42         void ClearDepth() noexcept;
  43
  44         BlockLighting &ChunkProgram() noexcept;
  45         DirectionalLighting &EntityProgram() noexcept;
  46         DirectionalLighting &HUDProgram() noexcept;
  47         BlendedSprite &SpriteProgram() noexcept;
  48
  49         void WorldPosition(const glm::mat4 &) noexcept;
  50
  51         const glm::mat4 &Perspective() const noexcept { return cam.Projection(); }
  52         const glm::mat4 &Ortho() const noexcept { return canv.Projection(); }
  53         const glm::mat4 &CenterTransform() const noexcept { return center; }
  54
  55 private:
  56         SDL_GLContext ctx;
  57         Camera cam;
  58         Canvas canv;
  59
  60         glm::mat4 center;
  61
  62         BlockLighting chunk_prog;
  63         DirectionalLighting entity_prog;
  64         BlendedSprite sprite_prog;
  65
  66         enum {
  67                 NONE,
  68                 CHUNK,
  69                 ENTITY,
  70                 HUD,
  71                 SPRITE,
  72         } active_prog;
  73
  74 };
  75
  76 }
  77
  78 #endif