1 #include <msp/io/memory.h>
5 #include "pixelstore.h"
14 class Texture2D::AsyncLoader: public Resource::AsyncLoader
22 Graphics::Image image;
27 AsyncLoader(Texture2D &, IO::Seekable &);
29 void set_srgb_conversion(bool);
30 virtual bool needs_sync() const;
31 virtual bool process();
35 Texture2D::Texture2D(ResourceManager *m):
36 Texture(GL_TEXTURE_2D, m),
43 Texture2D::~Texture2D()
48 void Texture2D::storage(PixelFormat fmt, unsigned wd, unsigned ht)
51 throw invalid_operation("Texture2D::storage");
53 throw invalid_argument("Texture2D::storage");
54 require_pixelformat(fmt);
61 void Texture2D::allocate(unsigned level)
63 if(allocated&(1<<level))
66 PixelFormat base_fmt = get_base_pixelformat(ifmt);
67 image(level, base_fmt, get_alloc_type(base_fmt), 0);
70 void Texture2D::image(unsigned level, PixelFormat fmt, DataType type, const void *data)
72 if(width==0 || height==0)
73 throw invalid_operation("Texture2D::image");
77 get_level_size(level, w, h);
79 BindRestore _bind(this);
80 glTexImage2D(target, level, ifmt, w, h, 0, fmt, type, data);
82 allocated |= 1<<level;
83 if(gen_mipmap && level==0)
85 auto_generate_mipmap();
86 for(; (w || h); w>>=1, h>>=1, ++level) ;
87 allocated |= (1<<level)-1;
91 void Texture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, PixelFormat fmt, DataType type, const void *data)
93 if(width==0 || height==0)
94 throw invalid_operation("Texture2D::sub_image");
98 BindRestore _bind(this);
99 glTexSubImage2D(target, level, x, y, wd, ht, fmt, type, data);
102 void Texture2D::load_image(const string &fn, bool srgb)
110 void Texture2D::image(const Graphics::Image &img, bool srgb)
112 image(img, srgb, false);
115 void Texture2D::image(const Graphics::Image &img, bool srgb, bool from_buffer)
117 unsigned w = img.get_width();
118 unsigned h = img.get_height();
119 PixelFormat fmt = pixelformat_from_graphics(img.get_format());
122 PixelFormat f = storage_pixelformat_from_graphics(img.get_format());
124 f = get_srgb_pixelformat(f);
127 else if(w!=width || h!=height)
128 throw incompatible_data("Texture2D::image");
130 PixelStore pstore = PixelStore::from_image(img);
131 BindRestore _bind_ps(pstore);
133 image(0, fmt, UNSIGNED_BYTE, from_buffer ? 0 : img.get_data());
136 void Texture2D::get_level_size(unsigned level, unsigned &w, unsigned &h)
147 Resource::AsyncLoader *Texture2D::load(IO::Seekable &io, const Resources *res)
149 AsyncLoader *ldr = new AsyncLoader(*this, io);
151 ldr->set_srgb_conversion(res->get_srgb_conversion());
155 UInt64 Texture2D::get_data_size() const
157 return id ? width*height*get_component_count(ifmt) : 0;
160 void Texture2D::unload()
162 glDeleteTextures(1, &id);
164 // TODO check which params actually need refreshing
169 Texture2D::Loader::Loader(Texture2D &t):
170 DataFile::DerivedObjectLoader<Texture2D, Texture::Loader>(t)
175 Texture2D::Loader::Loader(Texture2D &t, Collection &c):
176 DataFile::DerivedObjectLoader<Texture2D, Texture::Loader>(t, c)
181 void Texture2D::Loader::init()
183 add("image_data", &Loader::image_data);
184 add("raw_data", &Loader::raw_data);
185 add("storage", &Loader::storage);
186 add("storage", &Loader::storage_b);
189 void Texture2D::Loader::image_data(const string &data)
192 IO::Memory mem(data.data(), data.size());
195 obj.image(img, srgb);
198 void Texture2D::Loader::raw_data(const string &data)
200 obj.image(0, get_base_pixelformat(obj.ifmt), UNSIGNED_BYTE, data.data());
203 void Texture2D::Loader::storage(PixelFormat fmt, unsigned w, unsigned h)
206 fmt = get_srgb_pixelformat(fmt);
207 obj.storage(fmt, w, h);
210 void Texture2D::Loader::storage_b(PixelFormat fmt, unsigned w, unsigned h, unsigned)
216 Texture2D::AsyncLoader::AsyncLoader(Texture2D &t, IO::Seekable &i):
219 srgb_conversion(false),
220 pixel_buffer(PIXEL_UNPACK_BUFFER),
225 void Texture2D::AsyncLoader::set_srgb_conversion(bool c)
230 bool Texture2D::AsyncLoader::needs_sync() const
235 bool Texture2D::AsyncLoader::process()
239 /* TODO Enhance the ImageLoader system so that the image can be loaded
240 directly to the buffer */
242 n_bytes = image.get_stride()*image.get_height();
246 pixel_buffer.data(n_bytes, 0);
247 mapped_address = reinterpret_cast<char *>(pixel_buffer.map(WRITE_ONLY));
251 const char *data = reinterpret_cast<const char *>(image.get_data());
252 copy(data, data+n_bytes, mapped_address);
256 Bind _bind_buf(pixel_buffer, PIXEL_UNPACK_BUFFER);
257 if(!pixel_buffer.unmap())
264 glGenTextures(1, &texture.id);
265 texture.image(image, srgb_conversion, true);