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1 #ifndef TEXTURE_H_
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2 #define TEXTURE_H_
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3
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4 #include "dataset.h"
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5 #include "opengl.h"
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6
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7 namespace goatgfx {
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8
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9 class Image;
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10
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11 enum TextureType { TEX_2D, TEX_CUBE };
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12
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13 class Texture {
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14 private:
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15 unsigned int id;
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16 unsigned int target;
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17 unsigned int texfmt;
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18 int sz[3];
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19 Image *img;
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20 static Image *default_img;
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21
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22 Texture(const Texture &tex) {}
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23 Texture &operator =(const Texture &tex) { return *this; }
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24
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25 void set_image_2d(const Image &img);
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26 bool set_image_cube(const Image &img, int idx);
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27 bool set_image_cube(const Image &img);
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28
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29 bool load_cube(const char *fname);
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30
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31 /* for loading multiple cubemap faces from a single image */
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32 bool set_cube_multi(const Image &img, const float *xoffsets, const float *yoffsets, float sz,
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33 unsigned int rotmask = 0);
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34
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35 public:
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36 Texture();
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37 ~Texture();
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38
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39 void set_wrapping(unsigned int wrap);
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40 void set_filtering(unsigned int filt);
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41 void set_filtering(unsigned int min_filt, unsigned int mag_filt);
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42
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43 unsigned int get_format() const;
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44
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45 int get_size(int dim) const;
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46
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47 void create(int xsz, int ysz, TextureType type = TEX_2D, unsigned int ifmt = GL_RGBA);
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48 void create_default(TextureType type = TEX_2D);
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49 void set_image(const Image &img, int idx = -1);
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50
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51 bool load(const char *fname);
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52
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53 unsigned int get_id() const;
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54 TextureType get_type() const;
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55
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56 void bind(int tex_unit = 0) const;
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57
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58 friend class TextureSet;
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59 };
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60
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61 void bind_texture(Texture *tex, int tunit = 0);
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62
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63 class TextureSet : public DataSet<Texture*> {
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64 private:
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65 static Texture *create_tex();
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66 static bool load_tex(Texture *tex, const char *fname);
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67 static bool done_tex(Texture *tex);
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68 static void free_tex(Texture *tex);
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69
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70 public:
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71 TextureSet();
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72
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73 Texture *get_texture(const char *name, TextureType type = TEX_2D) const;
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74 };
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75
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76 } // namespace goatgfx
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77
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78 #endif // TEXTURE_H_
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