1 #ifndef TEXTURE_H_

2 #define TEXTURE_H_

3

4 #include "dataset.h"

5 #include "opengl.h"

6

7 class Image;

8

9 class Texture {

10 protected:

11 unsigned int id;

12 unsigned int target;

13 unsigned int texfmt;

14 int sz[3];

15

16 Texture(const Texture &tex) {}

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

18

19 public:

20 Texture();

21 virtual ~Texture();

22

23 void set_wrapping(unsigned int wrap);

24 void set_filtering(unsigned int filt);

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

26

27 unsigned int get_format() const;

28

29 virtual int get_size(int dim) const;

30

31 virtual void create(int xsz, int ysz, unsigned int ifmt = GL_RGBA) = 0;

32 virtual void set_image(const Image &img, int idx = 0) = 0;

33

34 virtual bool load(const char *fname) = 0;

35 virtual bool save(const char *fname) const = 0;

36

37 virtual unsigned int get_id() const;

38

39 virtual void bind(int tex_unit = 0) const;

40 };

41

42 class Texture2D : public Texture {

43 public:

44 Texture2D();

45

46 virtual void create(int xsz, int ysz, unsigned int ifmt = GL_RGBA);

47 virtual void set_image(const Image &img, int idx = 0);

48

49 virtual bool load(const char *fname);

50 virtual bool save(const char *fname) const;

51 };

52

53 class TextureCube : public Texture {

54 private:

55 bool load_multi(const Image &img, const float *xoffsets, const float *yoffsets, float sz,

56 unsigned int rotmask = 0);

57

58 public:

59 TextureCube();

60

61 virtual void create(int xsz, int ysz, unsigned int ifmt = GL_RGBA);

62 virtual void set_image(const Image &img, int idx = 0);

63

64 virtual bool load(const char *fname);

65 virtual bool save(const char *fname) const;

66 };

67

68 void set_texture(Texture *tex, int tunit = 0);

69

70 /** loads a texture autodetecting whether it's a 2D texture or

71 * cubemap and creating the correct Texture subclass instance.

72 */

73 Texture *load_texture(const char *fname);

74

75 class TextureSet : public DataSet<Texture*> {

76 public:

77 TextureSet();

78 };

79

80 #endif // TEXTURE_H_