src/graphics/TextureBase.hpp

   1 #ifndef GONG_GRAPHICS_TEXTUREBASE_HPP_
   2 #define GONG_GRAPHICS_TEXTUREBASE_HPP_
   3
   4 #include <GL/glew.h>
   5
   6
   7 namespace gong {
   8 namespace graphics {
   9
  10 template<GLenum TARGET, GLsizei COUNT = 1>
  11 class TextureBase {
  12
  13 public:
  14         TextureBase();
  15         ~TextureBase();
  16
  17         TextureBase(TextureBase &&other) noexcept;
  18         TextureBase &operator =(TextureBase &&) noexcept;
  19
  20         TextureBase(const TextureBase &) = delete;
  21         TextureBase &operator =(const TextureBase &) = delete;
  22
  23 public:
  24         void Bind(GLsizei which = 0) noexcept {
  25                 glBindTexture(TARGET, handle[which]);
  26         }
  27
  28         void FilterNearest() noexcept {
  29                 glTexParameteri(TARGET, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  30                 glTexParameteri(TARGET, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  31         }
  32         void FilterLinear() noexcept {
  33                 glTexParameteri(TARGET, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  34                 glTexParameteri(TARGET, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  35         }
  36         void FilterTrilinear() noexcept {
  37                 glTexParameteri(TARGET, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  38                 glTexParameteri(TARGET, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
  39                 glGenerateMipmap(TARGET);
  40         }
  41
  42         void WrapEdge() noexcept {
  43                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
  44                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
  45                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
  46         }
  47         void WrapBorder() noexcept {
  48                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_BORDER);
  49                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
  50                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
  51         }
  52         void WrapRepeat() noexcept {
  53                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_R, GL_REPEAT);
  54                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_S, GL_REPEAT);
  55                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_T, GL_REPEAT);
  56         }
  57         void WrapMirror() noexcept {
  58                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_R, GL_MIRRORED_REPEAT);
  59                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
  60                 glTexParameteri(TARGET, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
  61         }
  62
  63 private:
  64         GLuint handle[COUNT];
  65
  66 };
  67
  68 }
  69 }
  70
  71 #endif