source/core/texture2darray.cpp

   1 #include "error.h"
   2 #include "texture2darray.h"
   3
   4 using namespace std;
   5
   6 namespace Msp {
   7 namespace GL {
   8
   9 void Texture2DArray::layer_image(unsigned level, unsigned z, const void *data)
  10 {
  11         if(level>=n_levels || z>=depth)
  12                 throw out_of_range("Texture2DArray::layer_image");
  13
  14         LinAl::Vector<unsigned, 3> size = get_level_size(level);
  15         sub_image(level, 0, 0, z, size.x, size.y, 1, data);
  16 }
  17
  18 void Texture2DArray::layer_image(unsigned level, unsigned z, const Graphics::Image &img)
  19 {
  20         if(!get_width())
  21                 throw invalid_operation("Texture2DArray::layer_image");
  22
  23         unsigned w = img.get_width();
  24         unsigned h = img.get_height();
  25         if(w!=get_width() || h!=get_height())
  26                 throw incompatible_data("Texture2DArray::layer_image");
  27         PixelFormat fmt = pixelformat_from_image(img);
  28         if(get_components(fmt)!=get_components(format) || get_component_type(fmt)!=get_component_type(format))
  29                 throw incompatible_data("Texture2DArray::layer_image");
  30
  31         layer_image(level, z, img.get_pixels());
  32 }
  33
  34
  35 Texture2DArray::Loader::Loader(Texture2DArray &t):
  36         DataFile::DerivedObjectLoader<Texture2DArray, Texture3D::Loader>(t)
  37 {
  38         init();
  39 }
  40
  41 Texture2DArray::Loader::Loader(Texture2DArray &t, Collection &c):
  42         DataFile::DerivedObjectLoader<Texture2DArray, Texture3D::Loader>(t, c)
  43 {
  44         init();
  45 }
  46
  47 void Texture2DArray::Loader::init()
  48 {
  49         add("external_image", &Loader::external_image);
  50 }
  51
  52 void Texture2DArray::Loader::external_image(unsigned z, const string &fn)
  53 {
  54         Graphics::Image img;
  55         load_external_image(img, fn);
  56         obj.layer_image(0, z, img);
  57 }
  58
  59 } // namespace GL
  60 } // namespace Msp