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 static Image *default_img;

21

22 Texture(const Texture &tex) {}

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

24

25 void set_image_2d(const Image &img);

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

27 bool set_image_cube(const Image &img);

28

29 bool load_cube(const char *fname);

30

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

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

33 unsigned int rotmask = 0);

34

35 public:

36 Texture();

37 ~Texture();

38

39 void set_wrapping(unsigned int wrap);

40 void set_filtering(unsigned int filt);

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

42

43 unsigned int get_format() const;

44

45 int get_size(int dim) const;

46

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

48 void create_default(TextureType type = TEX_2D);

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

50

51 bool load(const char *fname);

52

53 unsigned int get_id() const;

54 TextureType get_type() const;

55

56 void bind(int tex_unit = 0) const;

57

58 friend class TextureSet;

59 };

60

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

62

63 class TextureSet : public DataSet<Texture*> {

64 private:

65 static Texture *create_tex();

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

67 static bool done_tex(Texture *tex);

68 static void free_tex(Texture *tex);

69

70 public:

71 TextureSet();

72

73 Texture *get_texture(const char *name, TextureType type = TEX_2D) const;

74 };

75

76 } // namespace goatgfx

77

78 #endif // TEXTURE_H_