1 #include <msp/core/raii.h>
2 #include <msp/gl/extensions/arb_direct_state_access.h>
3 #include <msp/gl/extensions/arb_texture_storage.h>
4 #include <msp/gl/extensions/msp_texture1d.h>
14 Texture1D::Texture1D():
15 Texture(GL_TEXTURE_1D),
19 static Require _req(MSP_texture1D);
22 void Texture1D::storage(PixelFormat fmt, unsigned wd)
25 throw invalid_operation("Texture1D::storage");
27 throw invalid_argument("Texture1D::storage");
29 set_internal_format(fmt);
33 void Texture1D::allocate(unsigned level)
36 throw invalid_operation("Texture1D::allocate");
37 if(allocated&(1<<level))
40 if(ARB_texture_storage)
42 unsigned n_levels = (is_mipmapped(min_filter) ? get_n_levels() : 1);
43 if(ARB_direct_state_access)
44 glTextureStorage1D(id, n_levels, ifmt, width);
47 BindRestore _bind(this);
48 glTexStorage1D(target, n_levels, ifmt, width);
50 allocated |= (1<<n_levels)-1;
54 PixelFormat base_fmt = get_base_pixelformat(ifmt);
55 image(level, base_fmt, get_alloc_type(base_fmt), 0);
59 void Texture1D::image(unsigned level, PixelFormat fmt, DataType type, const void *data)
62 throw invalid_operation("Texture1D::image");
64 unsigned w = get_level_size(level);
66 if(ARB_texture_storage)
67 return sub_image(level, 0, w, fmt, type, data);
69 BindRestore _bind(this);
70 glTexImage1D(target, level, ifmt, w, 0, get_upload_format(fmt), type, data);
72 allocated |= 1<<level;
73 if(gen_mipmap && level==0)
75 auto_generate_mipmap();
76 allocated |= (1<<get_n_levels())-1;
80 void Texture1D::sub_image(unsigned level, int x, unsigned wd, PixelFormat fmt, DataType type, const void *data)
83 throw invalid_operation("Texture3D::image");
85 Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
88 fmt = get_upload_format(fmt);
89 if(ARB_direct_state_access)
90 glTextureSubImage1D(id, level, x, wd, fmt, type, data);
92 glTexSubImage1D(target, level, x, wd, fmt, type, data);
94 if(gen_mipmap && level==0)
95 auto_generate_mipmap();
98 void Texture1D::image(const Graphics::Image &img, bool srgb)
100 if(img.get_height()!=1)
101 throw incompatible_data("Texture1D::image");
103 unsigned w = img.get_width();
104 PixelFormat fmt = pixelformat_from_graphics(img.get_format());
106 storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w);
108 throw incompatible_data("Texture1D::image");
110 image(0, fmt, UNSIGNED_BYTE, img.get_data());
113 unsigned Texture1D::get_n_levels() const
116 for(unsigned s=width; s; s>>=1, ++n) ;
120 unsigned Texture1D::get_level_size(unsigned level) const
125 UInt64 Texture1D::get_data_size() const
127 return id ? width*get_pixel_size(ifmt) : 0;
131 Texture1D::Loader::Loader(Texture1D &t):
132 DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t)
137 Texture1D::Loader::Loader(Texture1D &t, Collection &c):
138 DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t, c)
143 void Texture1D::Loader::init()
145 add("raw_data", &Loader::raw_data);
146 add("storage", &Loader::storage);
149 void Texture1D::Loader::raw_data(const string &data)
151 obj.image(0, get_base_pixelformat(obj.ifmt), UNSIGNED_BYTE, data.data());
154 void Texture1D::Loader::storage(PixelFormat fmt, unsigned w)
157 fmt = get_srgb_pixelformat(fmt);