2022-10-26 16:19:04 +11:00
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use crate::reflect::semantics::MemberOffset;
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2022-10-27 17:22:44 +11:00
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use thiserror::Error;
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2022-10-23 17:36:41 +11:00
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2022-12-01 17:50:16 +11:00
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/// Error type for shader compilation.
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2022-11-28 15:37:45 +11:00
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#[non_exhaustive]
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#[derive(Error, Debug)]
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pub enum ShaderCompileError {
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/// Compile error from naga.
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2022-11-22 08:21:50 +11:00
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#[cfg(feature = "unstable-rust-pipeline")]
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2022-10-23 17:36:41 +11:00
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#[error("shader")]
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NagaCompileError(Vec<naga::front::glsl::Error>),
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2022-12-01 17:50:16 +11:00
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/// Compilation error from shaderc (glslang).
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#[error("shaderc")]
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ShaderCCompileError(#[from] shaderc::Error),
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/// Error when initializing the shaderc compiler.
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#[error("shaderc init")]
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ShaderCInitError,
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2022-12-01 17:50:16 +11:00
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/// Error when transpiling from spirv-cross.
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2022-11-07 16:25:11 +11:00
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#[error("cross")]
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SpirvCrossCompileError(#[from] spirv_cross::ErrorCode),
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}
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/// The error kind encountered when reflecting shader semantics.
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#[derive(Debug)]
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pub enum SemanticsErrorKind {
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/// The number of uniform buffers was invalid. Only one UBO is permitted.
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InvalidUniformBufferCount(usize),
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/// The number of push constant blocks was invalid. Only one push constant block is permitted.
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InvalidPushBufferSize(u32),
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/// The location of a varying was invalid.
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InvalidLocation(u32),
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/// The requested descriptor set was invalid. Only descriptor set 0 is available.
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InvalidDescriptorSet(u32),
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/// The number of inputs to the shader was invalid.
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InvalidInputCount(usize),
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/// The number of outputs declared was invalid.
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InvalidOutputCount(usize),
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/// The declared binding point was invalid.
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InvalidBinding(u32),
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/// The declared resource type was invalid.
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InvalidResourceType,
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/// The range of a struct member was invalid.
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InvalidRange(u32),
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/// The requested uniform or texture name was not provided semantics.
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UnknownSemantics(String),
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/// The type of the requested uniform was not compatible with the provided semantics.
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InvalidTypeForSemantic(String),
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}
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/// Error type for shader reflection.
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#[non_exhaustive]
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#[derive(Error, Debug)]
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pub enum ShaderReflectError {
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/// Compile error from naga.
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#[cfg(feature = "unstable-rust-pipeline")]
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#[error("shader")]
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NagaCompileError(#[from] naga::front::spv::Error),
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/// Parse error from rspirv.
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#[cfg(feature = "unstable-rust-pipeline")]
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#[error("rspirv")]
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RspirvParseError(#[from] rspirv::binary::ParseState),
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/// Reflection error from spirv-cross.
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#[error("spirv")]
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SpirvCrossError(#[from] spirv_cross::ErrorCode),
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/// Error when validating vertex shader semantics.
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#[error("error when verifying vertex semantics")]
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VertexSemanticError(SemanticsErrorKind),
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/// Error when validating fragment shader semantics.
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#[error("error when verifying texture semantics")]
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FragmentSemanticError(SemanticsErrorKind),
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/// The vertex and fragment shader must have the same UBO binding location.
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#[error("vertex and fragment shader must have same binding")]
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MismatchedUniformBuffer { vertex: u32, fragment: u32 },
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/// The filter chain was found to be non causal. A pass tried to access the target output
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/// in the future.
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#[error("filter chain is non causal")]
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NonCausalFilterChain { pass: usize, target: usize },
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/// The offset of the given uniform did not match up in both the vertex and fragment shader.
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#[error("mismatched offset")]
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MismatchedOffset {
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semantic: String,
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vertex: MemberOffset,
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fragment: MemberOffset,
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},
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/// The size of the given uniform did not match up in both the vertex and fragment shader.
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#[error("mismatched component")]
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MismatchedSize {
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semantic: String,
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vertex: u32,
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fragment: u32,
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},
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/// The binding number is already in use.
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#[error("the binding is already in use")]
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BindingInUse(u32),
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}
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#[cfg(feature = "unstable-rust-pipeline")]
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impl From<Vec<naga::front::glsl::Error>> for ShaderCompileError {
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fn from(err: Vec<naga::front::glsl::Error>) -> Self {
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ShaderCompileError::NagaCompileError(err)
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}
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}
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