91 lines
2.4 KiB
Zig
91 lines
2.4 KiB
Zig
//! See https://www.khronos.org/registry/spir-v/specs/unified1/MachineReadableGrammar.html
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//! and the files in https://github.com/KhronosGroup/SPIRV-Headers/blob/master/include/spirv/unified1/
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//! Note: Non-canonical casing in these structs used to match SPIR-V spec json.
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pub const Registry = union(enum) {
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core: CoreRegistry,
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extension: ExtensionRegistry,
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};
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pub const CoreRegistry = struct {
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copyright: [][]const u8,
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/// Hexadecimal representation of the magic number
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magic_number: []const u8,
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major_version: u32,
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minor_version: u32,
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revision: u32,
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instruction_printing_class: []InstructionPrintingClass,
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instructions: []Instruction,
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operand_kinds: []OperandKind,
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};
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pub const ExtensionRegistry = struct {
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copyright: [][]const u8,
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version: u32,
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revision: u32,
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instructions: []Instruction,
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operand_kinds: []OperandKind = &[_]OperandKind{},
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};
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pub const InstructionPrintingClass = struct {
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tag: []const u8,
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heading: ?[]const u8 = null,
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};
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pub const Instruction = struct {
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opname: []const u8,
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class: ?[]const u8 = null, // Note: Only available in the core registry.
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opcode: u32,
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operands: []Operand = &[_]Operand{},
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capabilities: [][]const u8 = &[_][]const u8{},
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extensions: [][]const u8 = &[_][]const u8{},
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version: ?[]const u8 = null,
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lastVersion: ?[]const u8 = null,
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};
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pub const Operand = struct {
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kind: []const u8,
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/// If this field is 'null', the operand is only expected once.
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quantifier: ?Quantifier = null,
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name: []const u8 = "",
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};
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pub const Quantifier = enum {
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/// zero or once
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@"?",
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/// zero or more
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@"*",
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};
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pub const OperandCategory = enum {
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BitEnum,
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ValueEnum,
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Id,
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Literal,
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Composite,
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};
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pub const OperandKind = struct {
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category: OperandCategory,
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/// The name
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kind: []const u8,
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doc: ?[]const u8 = null,
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enumerants: ?[]Enumerant = null,
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bases: ?[]const []const u8 = null,
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};
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pub const Enumerant = struct {
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enumerant: []const u8,
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value: union(enum) {
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bitflag: []const u8, // Hexadecimal representation of the value
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int: u31,
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},
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capabilities: [][]const u8 = &[_][]const u8{},
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/// Valid for .ValueEnum and .BitEnum
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extensions: [][]const u8 = &[_][]const u8{},
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/// `quantifier` will always be `null`.
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parameters: []Operand = &[_]Operand{},
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version: ?[]const u8 = null,
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lastVersion: ?[]const u8 = null,
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};
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