28/01/2013 GLI 0.4.0.0 released

I have been wishing to release a new version of GLI for more than a year but GLI 0.4.0.0 is finally available.

This new version is a large refactoring / rewrite of the code which aims at avoiding memory copies, reduce memory fragmentation, memory allocations and constant time memory access. Just for loading textures, performance tests show a gain of 50% in release build and 50X in debug build.

Currently, there is no documentation and the features set remains very limited. All it is good for is loading DDS files containing basically any formats supported by OpenGL for either texture 2d, cube maps or texture 3d. It should be considered as an alpha version but expect regular updates from now on, aiming at making it a good image processing library.

Creating an OpenGL 4.2 compressed texture with GLI 0.4.0:
  • #include <gli/gli.hpp>
  • //
  • gli::texture2D Texture(gli::loadStorageDDS("kueken2.dds"));
  • assert(!Texture.empty());
  • glBindTexture(GL_TEXTURE_2D, TextureName);
  • glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
  • glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, GLint(Texture.levels() - 1));
  • glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, GL_RED);
  • glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_G, GL_GREEN);
  • glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, GL_BLUE);
  • glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A, GL_ALPHA);
  • glTexStorage2D(GL_TEXTURE_2D,
  • GLint(Texture.levels()),
  • GLenum(gli::internal_format(Texture.format())),
  • GLsizei(Texture.dimensions().x),
  • GLsizei(Texture.dimensions().y));
  • if(gli::is_compressed(Texture.format()))
  • {
  • for(gli::texture2D::size_type Level = 0; Level < Texture.levels(); ++Level)
  • {
  • glCompressedTexSubImage2D(GL_TEXTURE_2D,
  • GLint(Level),
  • 0, 0,
  • GLsizei(Texture[Level].dimensions().x),
  • GLsizei(Texture[Level].dimensions().y),
  • GLenum(gli::internal_format(Texture.format())),
  • GLsizei(Texture[Level].size()),
  • Texture[Level].data());
  • }
  • }
  • else
  • {
  • for(gli::texture2D::size_type Level = 0; Level < Texture.levels(); ++Level)
  • {
  • glTexSubImage2D(GL_TEXTURE_2D,
  • GLint(Level),
  • 0, 0,
  • GLsizei(Texture[Level].dimensions().x),
  • GLsizei(Texture[Level].dimensions().y),
  • GLenum(gli::external_format(Texture.format())),
  • GLenum(gli::type_format(Texture.format())),
  • Texture[Level].data());
  • }
  • }
January 2013 OpenGL status >
< December 2012 OpenGL status
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