use std::ffi::{c_void, CStr, CString};
use std::marker::PhantomData;
#[derive(Clone, Debug, PartialEq)]
pub struct GlConfig {
pub version: (u8, u8),
pub profile: Profile,
pub red_bits: u8,
pub blue_bits: u8,
pub green_bits: u8,
pub alpha_bits: u8,
pub depth_bits: u8,
pub stencil_bits: u8,
pub samples: Option<u8>,
pub srgb: bool,
pub double_buffer: bool,
pub vsync: bool,
}
impl Default for GlConfig {
fn default() -> Self {
GlConfig {
version: (3, 2),
profile: Profile::Core,
red_bits: 8,
blue_bits: 8,
green_bits: 8,
alpha_bits: 8,
depth_bits: 24,
stencil_bits: 8,
samples: None,
srgb: true,
double_buffer: true,
vsync: false,
}
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Profile {
Compatibility,
Core,
}
#[derive(Clone)]
pub struct GlContext {
inner: crate::platform::gl::GlContext,
phantom: PhantomData<(*mut (), &'static mut ())>,
}
impl GlContext {
pub(crate) fn new(context: crate::platform::gl::GlContext) -> GlContext {
GlContext { inner: context, phantom: PhantomData }
}
pub unsafe fn make_current(&self) -> Result<(), crate::Error> {
self.inner.make_current()?;
Ok(())
}
pub unsafe fn make_not_current(&self) -> Result<(), crate::Error> {
self.inner.make_not_current()?;
Ok(())
}
pub fn get_proc_address_from_str(&self, symbol: impl Into<Vec<u8>>) -> *const c_void {
let Ok(symbol) = CString::new(symbol) else { return std::ptr::null() };
self.get_proc_address(&symbol)
}
pub fn get_proc_address(&self, symbol: &CStr) -> *const c_void {
self.inner.get_proc_address(symbol)
}
pub fn swap_buffers(&self) -> Result<(), crate::Error> {
self.inner.swap_buffers()?;
Ok(())
}
}