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Allow texture mipmap levels to be specified in datafiles
[libs/gl.git] / source / texture1d.h
1 #ifndef MSP_GL_TEXTURE1D_H_
2 #define MSP_GL_TEXTURE1D_H_
3
4 #include "texture.h"
5
6 namespace Msp {
7 namespace GL {
8
9 class Texture1D: public Texture
10 {
11 public:
12         class Loader: public DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>
13         {
14         public:
15                 Loader(Texture1D &);
16                 Loader(Texture1D &, Collection &);
17         private:
18                 void init();
19
20                 void raw_data(const std::string &);
21                 void storage(PixelFormat, unsigned);
22                 void storage_levels(PixelFormat, unsigned, unsigned);
23         };
24
25 private:
26         unsigned width;
27         unsigned levels;
28         unsigned allocated;
29
30 public:
31         Texture1D();
32
33         void storage(PixelFormat, unsigned, unsigned = 0);
34         void allocate(unsigned);
35         void image(unsigned, PixelFormat, DataType, const void *);
36         void sub_image(unsigned, int, unsigned, PixelFormat, DataType, const void *);
37         virtual void image(const Graphics::Image &, unsigned, bool = false);
38         using Texture::image;
39         unsigned get_width() const { return width; }
40
41 private:
42         unsigned get_n_levels() const;
43         unsigned get_level_size(unsigned) const;
44
45 public:
46         virtual AsyncLoader *load(IO::Seekable &, const Resources * = 0) { return 0; }
47         virtual UInt64 get_data_size() const;
48         virtual void unload() { }
49 };
50
51 } // namespace GL
52 } // namespace Msp
53
54 #endif