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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 class Texture {
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12 protected:
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13 unsigned int id;
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14 unsigned int target;
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15 unsigned int texfmt;
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16 int sz[3];
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17
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18 Texture(const Texture &tex) {}
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19 Texture &operator =(const Texture &tex) { return *this; }
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20
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21 public:
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22 Texture();
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23 virtual ~Texture();
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24
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25 void set_wrapping(unsigned int wrap);
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26 void set_filtering(unsigned int filt);
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27 void set_filtering(unsigned int min_filt, unsigned int mag_filt);
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28
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29 unsigned int get_format() const;
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30
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31 virtual int get_size(int dim) const;
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32
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33 virtual void create(int xsz, int ysz, unsigned int ifmt = GL_RGBA) = 0;
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34 virtual void set_image(const Image &img, int idx = 0) = 0;
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35
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36 virtual bool load(const char *fname) = 0;
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37 virtual bool save(const char *fname) const = 0;
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38
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39 virtual unsigned int get_id() const;
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40
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41 virtual void bind(int tex_unit = 0) const;
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42 };
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43
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44 class Texture2D : public Texture {
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45 public:
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46 Texture2D();
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47
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48 virtual void create(int xsz, int ysz, unsigned int ifmt = GL_RGBA);
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49 virtual void set_image(const Image &img, int idx = 0);
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50
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51 virtual bool load(const char *fname);
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52 virtual bool save(const char *fname) const;
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53 };
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54
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55 class TextureCube : public Texture {
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56 private:
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57 bool load_multi(const Image &img, const float *xoffsets, const float *yoffsets, float sz,
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58 unsigned int rotmask = 0);
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59
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60 public:
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61 TextureCube();
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62
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63 virtual void create(int xsz, int ysz, unsigned int ifmt = GL_RGBA);
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64 virtual void set_image(const Image &img, int idx = 0);
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65
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66 virtual bool load(const char *fname);
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67 virtual bool save(const char *fname) const;
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68 };
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69
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70 void set_texture(Texture *tex, int tunit = 0);
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71
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72 /** loads a texture autodetecting whether it's a 2D texture or
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73 * cubemap and creating the correct Texture subclass instance.
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74 */
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75 Texture *load_texture(const char *fname);
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76
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77 class TextureSet : public DataSet<Texture*> {
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78 public:
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79 TextureSet();
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80 };
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81
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82 } // namespace goatgfx
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83
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84 #endif // TEXTURE_H_
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