1 #ifndef TEXTURE_H_

2 #define TEXTURE_H_

3

4 #include "dataset.h"

5 #include "opengl.h"

6

7 namespace goatgfx {

8

9 class Image;

10

11 enum TextureType { TEX_2D, TEX_CUBE };

12

13 class Texture {

14 private:

15 unsigned int id;

16 unsigned int target;

17 unsigned int texfmt;

18 int sz[3];

19 Image *img;

20

21 Texture(const Texture &tex) {}

22 Texture &operator =(const Texture &tex) { return *this; }

23

24 void set_image_2d(const Image &img);

25 bool set_image_cube(const Image &img, int idx);

26 bool set_image_cube(const Image &img);

27

28 bool load_cube(const char *fname);

29

30 /* for loading multiple cubemap faces from a single image */

31 bool set_cube_multi(const Image &img, const float *xoffsets, const float *yoffsets, float sz,

32 unsigned int rotmask = 0);

33

34 public:

35 Texture();

36 ~Texture();

37

38 void set_wrapping(unsigned int wrap);

39 void set_filtering(unsigned int filt);

40 void set_filtering(unsigned int min_filt, unsigned int mag_filt);

41

42 unsigned int get_format() const;

43

44 int get_size(int dim) const;

45

46 void create(int xsz, int ysz, TextureType type = TEX_2D, unsigned int ifmt = GL_RGBA);

47 void set_image(const Image &img, int idx = -1);

48

49 bool load(const char *fname);

50

51 unsigned int get_id() const;

52 TextureType get_type() const;

53

54 void bind(int tex_unit = 0) const;

55

56 friend class TextureSet;

57 };

58

59 void bind_texture(Texture *tex, int tunit = 0);

60

61 class TextureSet : public DataSet<Texture*> {

62 private:

63 static Texture *create_tex();

64 static bool load_tex(Texture *tex, const char *fname);

65 static bool done_tex(Texture *tex);

66 static void free_tex(Texture *tex);

67

68 public:

69 TextureSet();

70 };

71

72 } // namespace goatgfx

73

74 #endif // TEXTURE_H_