-#include "bindable.h"
-#include "error.h"
-#include "texture2d.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-Texture2D::Texture2D():
- Texture(GL_TEXTURE_2D),
- width(0),
- height(0),
- allocated(0)
-{ }
-
-void Texture2D::storage(PixelFormat fmt, unsigned wd, unsigned ht)
-{
- if(width>0)
- throw invalid_operation("Texture2D::storage");
- if(wd==0 || ht==0)
- throw invalid_argument("Texture2D::storage");
-
- ifmt = fmt;
- width = wd;
- height = ht;
-}
-
-void Texture2D::allocate(unsigned level)
-{
- if(allocated&(1<<level))
- return;
-
- image(level, get_base_pixelformat(ifmt), UNSIGNED_BYTE, 0);
-}
-
-void Texture2D::image(unsigned level, PixelFormat fmt, DataType type, const void *data)
-{
- if(width==0 || height==0)
- throw invalid_operation("Texture2D::image");
-
- unsigned w = width;
- unsigned h = height;
- get_level_size(level, w, h);
-
- Bind _bind(this, true);
- glTexImage2D(target, level, ifmt, w, h, 0, fmt, type, data);
-
- allocated |= 1<<level;
- if(gen_mipmap && level==0)
- {
- for(; (w || h); w>>=1, h>>=1, ++level) ;
- allocated |= (1<<level)-1;
- }
-}
-
-void Texture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, PixelFormat fmt, DataType type, const void *data)
-{
- if(width==0 || height==0)
- throw invalid_operation("Texture2D::sub_image");
-
- allocate(level);
-
- Bind _bind(this, true);
- glTexSubImage2D(target, level, x, y, wd, ht, fmt, type, data);
-}
-
-void Texture2D::load_image(const string &fn)
-{
- Graphics::Image img;
- img.load_file(fn);
-
- image(img);
-}
-
-void Texture2D::image(const Graphics::Image &img)
-{
- unsigned w = img.get_width();
- unsigned h = img.get_height();
- PixelFormat fmt = pixelformat_from_graphics(img.get_format());
- if(width==0)
- storage(fmt, w, h);
- else if(w!=width || h!=height)
- throw incompatible_data("Texture2D::image");
-
- image(0, fmt, UNSIGNED_BYTE, img.get_data());
-}
-
-void Texture2D::get_level_size(unsigned level, unsigned &w, unsigned &h)
-{
- w >>= level;
- h >>= level;
-
- if(!w && h)
- w = 1;
- else if(!h && w)
- h = 1;
-}
-
-
-Texture2D::Loader::Loader(Texture2D &t):
- Texture::Loader(t)
-{
- add("image_data", &Loader::image_data);
- add("raw_data", &Loader::raw_data);
- add("storage", &Loader::storage);
- add("storage", &Loader::storage_b);
-}
-
-void Texture2D::Loader::image_data(const string &data)
-{
- Graphics::Image img;
- img.load_memory(data.data(), data.size());
-
- static_cast<Texture2D &>(obj).image(img);
-}
-
-void Texture2D::Loader::raw_data(const string &data)
-{
- Texture2D &t2d = static_cast<Texture2D &>(obj);
- t2d.image(0, t2d.ifmt, UNSIGNED_BYTE, data.data());
-}
-
-void Texture2D::Loader::storage(PixelFormat fmt, unsigned w, unsigned h)
-{
- static_cast<Texture2D &>(obj).storage(fmt, w, h);
-}
-
-void Texture2D::Loader::storage_b(PixelFormat fmt, unsigned w, unsigned h, unsigned)
-{
- storage(fmt, w, h);
-}
-
-} // namespace GL
-} // namespace Msp