Crate gl46[−][src]
Makes the OpenGL 4.6 Core API (plus some extensions) available for use.
The crate's interface is provided a "struct" style loader.
Construct a GlFns
using an appropriate "gl_get_proc_address" function
and then call its methods.
Extensions
- GL_ARB_texture_filter_anisotropic
- GL_ARB_bindless_texture
- GL_ARB_sparse_texture
- GL_ARB_pipeline_statistics_query
Cargo Features
track_caller
: Enables the track_caller attribute on any function that can panic. Specifically, the extension functions of the struct loader might not be loaded, and if you call them when they're not loaded you'll get a panic.
gl_get_proc_address
GL must generally be dynamically loaded at runtime. This is done via a
function which we'll call "gl_get_proc_address". The expected operation of
this function is very simple: The caller passes in the pointer to a
null-terminated string with the name of a GL function, and
gl_get_proc_address
returns the pointer to that function.
The way that you get an appropriate gl_get_proc_address
function is
platform dependent.
- With Win32 you'd use wglGetProcAddress for any
function from after OpenGL 1.1, and GetProcAddress on
an open
HMODULE
to "OpenGL.dll" for any OpenGL function from either 1.1 or 1.0. That sounds silly, but it's true. - With SDL2 you'd call SDL_GL_GetProcAddress, or the equivalent function within your SDL2 bindings.
- With glutin you'd call Context::get_proc_address
Inlining
This crate does not use the #[inline]
attribute.
If you want full inlining just turn on Link-Time Optimization in your cargo
profile:
[profile.release]
lto = "thin"
Re-exports
pub use gl_core_types::*; |
pub use gl_enumerations::*; |
pub use gl_groups::*; |
Modules
gl_command_types | |
gl_core_types | |
gl_enumerations | |
gl_groups |
Structs
GlFns |