Code samples

• #include <gli/gli.hpp>
• GLuint CreateTextureArray(char const* Filename)
• {
• gli::texture2D Texture(gli::load_dds(Filename));
• assert(!Texture.empty());
• gli::gl GL;
• gli::gl::format const Format = GL.translate(Texture.format());
• GLuint TextureName = 0;
• glGenTextures(1, &TextureName);
• glBindTexture(GL_TEXTURE_2D_ARRAY, TextureName);
• glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BASE_LEVEL, 0);
• glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAX_LEVEL, static_cast<GLint>(Texture.levels() - 1));
• glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_SWIZZLE_R, Format.Swizzle[0]);
• glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_SWIZZLE_G, Format.Swizzle[1]);
• glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_SWIZZLE_B, Format.Swizzle[2]);
• glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_SWIZZLE_A, Format.Swizzle[3]);
• glTexStorage3D(GL_TEXTURE_2D_ARRAY, static_cast<GLint>(Texture.levels()),
• Format.Internal,
• static_cast<GLsizei>(Texture.dimensions().x),
• static_cast<GLsizei>(Texture.dimensions().y),
• static_cast<GLsizei>(1));
• if(gli::is_compressed(Texture.format()))
• {
• for(std::size_t Level = 0; Level < Texture.levels(); ++Level)
• {
• glCompressedTexSubImage3D(GL_TEXTURE_2D_ARRAY, static_cast<GLint>(Level),
• 0, 0, 0,
• static_cast<GLsizei>(Texture[Level].dimensions().x),
• static_cast<GLsizei>(Texture[Level].dimensions().y),
• static_cast<GLsizei>(1),
• Format.External,
• static_cast<GLsizei>(Texture[Level].size()),
• Texture[Level].data());
• }
• }
• else
• {
• for(std::size_t Level = 0; Level < Texture.levels(); ++Level)
• {
• glTexSubImage3D(GL_TEXTURE_2D_ARRAY, static_cast<GLint>(Level),
• 0, 0, 0,
• static_cast<GLsizei>(Texture[Level].dimensions().x),
• static_cast<GLsizei>(Texture[Level].dimensions().y),
• static_cast<GLsizei>(1),
• Format.External, Format.Type,
• Texture[Level].data());
• }
• }
• return TextureName;
• }

• #include <gli/gli.hpp>
• gli::texture2D CreateTextureRGBA8(gli::texture2D::dim_type const & Dim)
• {
• gli::texture2D Texture(gli::FORMAT_RGBA8_UNORM, Dim);
• Texture.clear<glm::u8vec4>(glm::u8vec4(255, 127, 0, 255));
• return Texture;
• }

• #include <gli/gli.hpp>
• int test(std::string const & Filename)
• {
• int Error(0);
• gli::texture2D TextureA(gli::load_dds(path(Filename.c_str())));
• gli::save_dds(TextureA, Filename.c_str());
• gli::texture2D TextureB(gli::load_dds(Filename.c_str()));
• Error += TextureA == TextureB ? 0 : 1;
• return Error;
• }