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)
26 if(fmt!=format || wd!=width || (lv && lv!=levels))
27 throw incompatible_data("Texture1D::storage");
31 throw invalid_argument("Texture1D::storage");
35 levels = get_n_levels();
37 levels = min(levels, lv);
40 void Texture1D::allocate(unsigned level)
43 throw invalid_operation("Texture1D::allocate");
45 throw invalid_argument("Texture1D::allocate");
46 if(allocated&(1<<level))
49 if(ARB_texture_storage)
51 Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
52 if(ARB_direct_state_access)
53 glTextureStorage1D(id, levels, storage_fmt, width);
55 glTexStorage1D(target, levels, storage_fmt, width);
57 allocated |= (1<<levels)-1;
63 void Texture1D::image(unsigned level, const void *data)
66 throw invalid_operation("Texture1D::image");
68 throw out_of_range("Texture1D::image");
70 unsigned w = get_level_size(level);
72 if(ARB_texture_storage)
73 return sub_image(level, 0, w, data);
75 BindRestore _bind(this);
79 glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
83 PixelComponents comp = get_components(storage_fmt);
84 GLenum type = get_gl_type(get_component_type(storage_fmt));
85 glTexImage1D(target, level, storage_fmt, w, 0, comp, type, data);
87 allocated |= 1<<level;
88 if(auto_gen_mipmap && level==0)
91 allocated |= (1<<levels)-1;
95 void Texture1D::image(unsigned level, PixelComponents comp, DataType type, const void *data)
97 if(comp!=get_components(format) || type!=get_component_type(format))
98 throw incompatible_data("Texture1D::image");
102 void Texture1D::sub_image(unsigned level, int x, unsigned wd, const void *data)
105 throw invalid_operation("Texture1D::sub_image");
107 throw out_of_range("Texture1D::sub_image");
109 Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
112 PixelComponents comp = get_components(storage_fmt);
113 GLenum type = get_gl_type(get_component_type(storage_fmt));
114 if(ARB_direct_state_access)
115 glTextureSubImage1D(id, level, x, wd, comp, type, data);
117 glTexSubImage1D(target, level, x, wd, comp, type, data);
119 if(auto_gen_mipmap && level==0)
123 void Texture1D::sub_image(unsigned level, int x, unsigned wd, PixelComponents comp, DataType type, const void *data)
125 if(comp!=get_components(format) || type!=get_component_type(format))
126 throw incompatible_data("Texture1D::sub_image");
127 sub_image(level, x, wd, data);
130 void Texture1D::image(const Graphics::Image &img, unsigned lv)
132 if(img.get_height()!=1)
133 throw incompatible_data("Texture1D::image");
135 unsigned w = img.get_width();
136 PixelFormat fmt = pixelformat_from_image(img);
137 storage(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w, lv);
139 image(0, img.get_pixels());
142 unsigned Texture1D::get_n_levels() const
145 for(unsigned s=width; s; s>>=1, ++n) ;
149 unsigned Texture1D::get_level_size(unsigned level) const
154 UInt64 Texture1D::get_data_size() const
156 return id ? width*get_pixel_size(storage_fmt) : 0;
160 Texture1D::Loader::Loader(Texture1D &t):
161 DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t)
166 Texture1D::Loader::Loader(Texture1D &t, Collection &c):
167 DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t, c)
172 void Texture1D::Loader::init()
174 add("raw_data", &Loader::raw_data);
175 add("storage", &Loader::storage);
176 add("storage", &Loader::storage_levels);
179 void Texture1D::Loader::raw_data(const string &data)
181 obj.image(0, data.data());
184 void Texture1D::Loader::storage(PixelFormat fmt, unsigned w)
189 void Texture1D::Loader::storage_levels(PixelFormat fmt, unsigned w, unsigned l)
191 obj.storage(fmt, w, l);