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use crate::{
gl::{
GetError, INVALID_ENUM, INVALID_FRAMEBUFFER_OPERATION, INVALID_OPERATION, INVALID_VALUE,
NO_ERROR, OUT_OF_MEMORY,
},
GLenum,
};
#[derive(Clone, Copy, Default, PartialEq, Eq)]
pub struct Error(GLenum);
impl Error {
pub fn new() -> Self {
Self {
0: unsafe { GetError() },
}
}
pub fn is_error(self) -> bool {
self.0 != NO_ERROR
}
pub fn is_okay(self) -> bool {
self.0 == NO_ERROR
}
pub fn to_str(self) -> &'static str {
match self.0 as u32 {
NO_ERROR => "No error",
INVALID_ENUM => "An unacceptable value is specified for an enumerated argument",
INVALID_VALUE => "A numeric argument is out of range",
INVALID_OPERATION => "The specified operation is not allowed in the current state",
INVALID_FRAMEBUFFER_OPERATION => "The framebuffer object is not complete",
OUT_OF_MEMORY => "There is not enough memory left to execute the command",
_ => "Unknown error",
}
}
}
impl std::fmt::Debug for Error {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "Error({}, \"{}\")", self.0, self.to_str())
}
}
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "Error({}, \"{}\")", self.0, self.to_str())
}
}
impl std::error::Error for Error {
fn description(&self) -> &str {
self.to_str()
}
fn cause(&self) -> Option<&dyn std::error::Error> {
None
}
}