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, unsigned lv)
25 throw invalid_operation("Texture1D::storage");
27 throw invalid_argument("Texture1D::storage");
31 levels = get_n_levels();
33 levels = min(levels, lv);
36 void Texture1D::allocate(unsigned level)
39 throw invalid_operation("Texture1D::allocate");
41 throw invalid_argument("Texture1D::allocate");
42 if(allocated&(1<<level))
45 if(ARB_texture_storage)
47 Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
48 if(ARB_direct_state_access)
49 glTextureStorage1D(id, levels, storage_fmt, width);
51 glTexStorage1D(target, levels, storage_fmt, width);
53 allocated |= (1<<levels)-1;
59 void Texture1D::image(unsigned level, 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, data);
69 BindRestore _bind(this);
73 glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
77 PixelComponents comp = get_components(storage_fmt);
78 GLenum type = get_gl_type(get_component_type(storage_fmt));
79 glTexImage1D(target, level, storage_fmt, w, 0, comp, type, data);
81 allocated |= 1<<level;
82 if(auto_gen_mipmap && level==0)
85 allocated |= (1<<levels)-1;
89 void Texture1D::image(unsigned level, PixelComponents comp, DataType type, const void *data)
91 if(comp!=get_components(format) || type!=get_component_type(format))
92 throw incompatible_data("Texture1D::image");
96 void Texture1D::sub_image(unsigned level, int x, unsigned wd, const void *data)
99 throw invalid_operation("Texture3D::image");
101 Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
104 PixelComponents comp = get_components(storage_fmt);
105 GLenum type = get_gl_type(get_component_type(storage_fmt));
106 if(ARB_direct_state_access)
107 glTextureSubImage1D(id, level, x, wd, comp, type, data);
109 glTexSubImage1D(target, level, x, wd, comp, type, data);
111 if(auto_gen_mipmap && level==0)
115 void Texture1D::sub_image(unsigned level, int x, unsigned wd, PixelComponents comp, DataType type, const void *data)
117 if(comp!=get_components(format) || type!=get_component_type(format))
118 throw incompatible_data("Texture1D::sub_image");
119 sub_image(level, x, wd, data);
122 void Texture1D::image(const Graphics::Image &img, unsigned lv)
124 if(img.get_height()!=1)
125 throw incompatible_data("Texture1D::image");
127 unsigned w = img.get_width();
128 PixelFormat fmt = pixelformat_from_image(img);
130 storage(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w, lv);
132 throw incompatible_data("Texture1D::image");
134 image(0, img.get_pixels());
137 unsigned Texture1D::get_n_levels() const
140 for(unsigned s=width; s; s>>=1, ++n) ;
144 unsigned Texture1D::get_level_size(unsigned level) const
149 UInt64 Texture1D::get_data_size() const
151 return id ? width*get_pixel_size(storage_fmt) : 0;
155 Texture1D::Loader::Loader(Texture1D &t):
156 DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t)
161 Texture1D::Loader::Loader(Texture1D &t, Collection &c):
162 DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t, c)
167 void Texture1D::Loader::init()
169 add("raw_data", &Loader::raw_data);
170 add("storage", &Loader::storage);
171 add("storage", &Loader::storage_levels);
174 void Texture1D::Loader::raw_data(const string &data)
176 obj.image(0, data.data());
179 void Texture1D::Loader::storage(PixelFormat fmt, unsigned w)
184 void Texture1D::Loader::storage_levels(PixelFormat fmt, unsigned w, unsigned l)
186 obj.storage(fmt, w, l);