pub unsafe trait Backend {
// Required methods
fn swap_buffers(&self) -> Result<(), SwapBuffersError>;
unsafe fn get_proc_address(&self, symbol: &str) -> *const c_void;
fn get_framebuffer_dimensions(&self) -> (u32, u32);
fn resize(&self, new_size: (u32, u32));
fn is_current(&self) -> bool;
unsafe fn make_current(&self);
}Expand description
Trait for types that can be used as a backend for a glium context.
This trait is unsafe, as you can get undefined behaviors or crashes if you don’t implement the methods correctly.
Required Methods§
Sourcefn swap_buffers(&self) -> Result<(), SwapBuffersError>
fn swap_buffers(&self) -> Result<(), SwapBuffersError>
Swaps buffers at the end of a frame.
Sourceunsafe fn get_proc_address(&self, symbol: &str) -> *const c_void
unsafe fn get_proc_address(&self, symbol: &str) -> *const c_void
Returns the address of an OpenGL function.
Supposes that the context has been made current before this function is called.
Sourcefn get_framebuffer_dimensions(&self) -> (u32, u32)
fn get_framebuffer_dimensions(&self) -> (u32, u32)
Returns the dimensions of the window, or screen, etc.
Sourcefn resize(&self, new_size: (u32, u32))
fn resize(&self, new_size: (u32, u32))
Resizes the underlying surface, should be called when the window’s size has changed for example.
Sourcefn is_current(&self) -> bool
fn is_current(&self) -> bool
Returns true if the OpenGL context is the current one in the thread.
Sourceunsafe fn make_current(&self)
unsafe fn make_current(&self)
Makes the OpenGL context the current context in the current thread.