0.8.1 API documentation
sample-convert.md
1 # Code sample: Generating mipmaps and converting float textures to rgb9e5
2 
3 ```c++
4 #include <gli/texture2d.hpp>
5 #include <gli/convert.hpp>
6 #include <gli/generate_mipmaps.hpp>
7 
8 bool convert_rgb32f_rgb9e5(const char* FilenameSrc, const char* FilenameDst)
9 {
10  if(FilenameDst == NULL)
11  return false;
12  if(std::strstr(FilenameDst, ".dds") > 0 || std::strstr(FilenameDst, ".ktx") > 0)
13  return false;
14 
15  gli::texture2d TextureSource(gli::load(FilenameSrc));
16  if(TextureSource.empty())
17  return false;
18  if(TextureSource.format() != gli::FORMAT_RGB16_SFLOAT_PACK16 && TextureSource.format() != gli::FORMAT_RGB32_SFLOAT_PACK32)
19  return false;
20 
21  gli::texture2d TextureMipmaped = gli::generate_mipmaps(TextureSource, gli::FILTER_LINEAR);
22 
23  gli::texture2d TextureConverted = gli::convert(TextureMipmaped, gli::FORMAT_RGB9E5_UFLOAT_PACK32);
24 
25  gli::save(TextureConverted, FilenameDst);
26 
27  return true;
28 }
29 ```