Crate gl33[−][src]
Makes the OpenGL 3.3 Core API (+GL_KHR_debug) available for use.
The crate’s interface is provided as a “struct” style loader. Construct a
GlFns using an appropriate “gl_get_proc_address” function and then call
its methods.
There’s also a “global” style loader if the global_loader feature is
enabled.
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
HMODULEto “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_core_types | |
| gl_enumerations | |
| gl_groups | |
| global_loader |
Structs
| GlFns | A struct that holds all the functions to use OpenGL 3.3 Core. |