ombre 0.6.7

Shadowy game and graphics library for Rust
Documentation 
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//! OpenGL backend errors.

/// OpenGL backend error.
#[derive(Debug)]
pub enum Error {
    NoActivePipeline,
    NoActiveIndexBuffer,
    IncompleteFramebuffer(u32),
    InvalidIndexElementSize(usize),
    InvalidIndexElementCount(usize),
    InvalidBufferDataSize(usize),
    MissingColorAttachment,
    MissingDepthAttachment,
    MissingAttachment,
    AttachmentSizeMismatch,
    AlphaBlendWithoutColor,
    TextureLayoutMismatch,
    UniformLayoutMismatch,
    Internal(String),
}

impl std::fmt::Display for Error {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Self::NoActivePipeline => {
                write!(f, "this operation requires an active pipeline")
            }
            Self::NoActiveIndexBuffer => {
                write!(f, "this operation requires an active index buffer")
            }
            Self::MissingAttachment => {
                write!(
                    f,
                    "render pass should have at least one render target specified"
                )
            }
            Self::MissingColorAttachment => {
                write!(f, "render pass color attachment is missing")
            }
            Self::MissingDepthAttachment => {
                write!(f, "render pass depth attachment is missing")
            }
            Self::AttachmentSizeMismatch => {
                write!(f, "render pass attachment size mismatch")
            }
            Self::AlphaBlendWithoutColor => {
                write!(f, "alpha blend specified without color blend")
            }
            Self::TextureLayoutMismatch => {
                write!(f, "texture binding doesn't match shader layout")
            }
            Self::UniformLayoutMismatch => {
                write!(f, "uniform data doesn't match shader layout")
            }
            Self::IncompleteFramebuffer(status) => {
                write!(f, "framebuffer is incomplete (status {status:x})")
            }
            Self::InvalidIndexElementSize(s) => {
                write!(f, "index buffer element size `{s}` is invalid")
            }
            Self::InvalidIndexElementCount(s) => {
                write!(f, "element count `{s}` is not within index buffer range")
            }
            Self::InvalidBufferDataSize(s) => {
                write!(f, "buffer data size `{s}` is invalid")
            }
            Self::Internal(e) => {
                write!(f, "{e}")
            }
        }
    }
}

impl std::error::Error for Error {}