469 lines
18 KiB
Zig
469 lines
18 KiB
Zig
const std = @import("std");
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const lib = @import("lib.zig");
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const Result = @import("Result.zig");
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const Runtime = @import("Runtime.zig");
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const RuntimeError = Runtime.RuntimeError;
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const SpvVoid = lib.SpvVoid;
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const SpvByte = lib.SpvByte;
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const SpvWord = lib.SpvWord;
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const SpvBool = lib.SpvBool;
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const Vec4f32 = lib.Vec4f32;
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const Vec3f32 = lib.Vec3f32;
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const Vec2f32 = lib.Vec2f32;
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const Vec4i32 = lib.Vec4i32;
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const Vec3i32 = lib.Vec3i32;
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const Vec2i32 = lib.Vec2i32;
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const Vec4u32 = lib.Vec4u32;
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const Vec3u32 = lib.Vec3u32;
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const Vec2u32 = lib.Vec2u32;
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const Type = Result.Type;
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pub const Value = union(Type) {
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const Self = @This();
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Void: struct {},
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Bool: bool,
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Int: struct {
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bit_count: usize,
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value: extern union {
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sint8: i8,
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sint16: i16,
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sint32: i32,
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sint64: i64,
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uint8: u8,
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uint16: u16,
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uint32: u32,
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uint64: u64,
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},
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},
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Float: struct {
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bit_count: usize,
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value: extern union {
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float16: f16,
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float32: f32,
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float64: f64,
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},
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},
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Vector: []Self,
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Vector4f32: Vec4f32,
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Vector3f32: Vec3f32,
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Vector2f32: Vec2f32,
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Vector4i32: Vec4i32,
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Vector3i32: Vec3i32,
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Vector2i32: Vec2i32,
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Vector4u32: Vec4u32,
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Vector3u32: Vec3u32,
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Vector2u32: Vec2u32,
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Matrix: []Self,
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Array: []Self,
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RuntimeArray: struct {
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type_word: SpvWord,
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stride: SpvWord,
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data: []u8,
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pub inline fn createValueFromIndex(self: *const @This(), allocator: std.mem.Allocator, results: []Result, index: usize) RuntimeError!*Value {
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const value = allocator.create(Value) catch return RuntimeError.OutOfMemory;
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errdefer allocator.destroy(value);
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value.* = try Value.init(allocator, results, self.type_word);
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_ = try value.writeConst(self.data[(try self.getOffsetOfIndex(index))..]);
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return value;
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}
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pub inline fn getOffsetOfIndex(self: *const @This(), index: usize) RuntimeError!usize {
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return self.stride * index;
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}
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},
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Structure: []Self,
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Function: noreturn,
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Image: struct {},
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Sampler: struct {},
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SampledImage: struct {},
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Pointer: struct {
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ptr: union(enum) {
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common: *Self,
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f32_ptr: *f32,
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i32_ptr: *i32, //< For vector specializations
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u32_ptr: *u32,
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},
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runtime_array_window: ?[]u8 = null,
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},
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pub inline fn getCompositeDataOrNull(self: *const Self) ?[]Self {
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return switch (self.*) {
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.Vector, .Matrix, .Array, .Structure => |v| v,
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else => null,
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};
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}
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pub fn init(allocator: std.mem.Allocator, results: []const Result, target: SpvWord) RuntimeError!Self {
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const resolved = results[target].resolveType(results);
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const member_count = resolved.getMemberCounts();
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return switch (resolved.variant.?) {
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.Type => |t| switch (t) {
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.Void => .{ .Void = .{} },
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.Bool => .{ .Bool = false },
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.Int => |i| .{ .Int = .{
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.bit_count = i.bit_length,
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.value = .{ .uint64 = 0 },
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} },
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.Float => |f| .{ .Float = .{
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.bit_count = f.bit_length,
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.value = .{ .float64 = 0 },
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} },
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.Vector => |v| blk: {
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var self: Self = .{ .Vector = allocator.alloc(Self, member_count) catch return RuntimeError.OutOfMemory };
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errdefer self.deinit(allocator);
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for (self.Vector) |*value| {
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value.* = try Self.init(allocator, results, v.components_type_word);
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}
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break :blk self;
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},
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.Vector4f32 => .{ .Vector4f32 = Vec4f32{ 0.0, 0.0, 0.0, 0.0 } },
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.Vector3f32 => .{ .Vector3f32 = Vec3f32{ 0.0, 0.0, 0.0 } },
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.Vector2f32 => .{ .Vector2f32 = Vec2f32{ 0.0, 0.0 } },
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.Vector4i32 => .{ .Vector4i32 = Vec4i32{ 0, 0, 0, 0 } },
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.Vector3i32 => .{ .Vector3i32 = Vec3i32{ 0, 0, 0 } },
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.Vector2i32 => .{ .Vector2i32 = Vec2i32{ 0, 0 } },
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.Vector4u32 => .{ .Vector4u32 = Vec4u32{ 0, 0, 0, 0 } },
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.Vector3u32 => .{ .Vector3u32 = Vec3u32{ 0, 0, 0 } },
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.Vector2u32 => .{ .Vector2u32 = Vec2u32{ 0, 0 } },
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.Matrix => |m| blk: {
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var self: Self = .{ .Matrix = allocator.alloc(Self, member_count) catch return RuntimeError.OutOfMemory };
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errdefer self.deinit(allocator);
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for (self.Matrix) |*value| {
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value.* = try Self.init(allocator, results, m.column_type_word);
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}
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break :blk self;
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},
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.Array => |a| blk: {
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var self: Self = .{ .Array = allocator.alloc(Self, member_count) catch return RuntimeError.OutOfMemory };
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errdefer self.deinit(allocator);
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for (self.Array) |*value| {
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value.* = try Self.init(allocator, results, a.components_type_word);
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}
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break :blk self;
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},
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.Structure => |s| blk: {
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var self: Self = .{ .Structure = allocator.alloc(Self, member_count) catch return RuntimeError.OutOfMemory };
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errdefer self.deinit(allocator);
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for (self.Structure, s.members_type_word) |*value, member_type_word| {
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value.* = try Self.init(allocator, results, member_type_word);
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}
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break :blk self;
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},
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.RuntimeArray => |a| .{
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.RuntimeArray = .{
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.type_word = a.components_type_word,
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.stride = a.stride,
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.data = &.{},
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},
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},
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.Image => RuntimeError.ToDo,
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.Sampler => RuntimeError.ToDo,
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.SampledImage => RuntimeError.ToDo,
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else => RuntimeError.InvalidSpirV,
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},
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else => RuntimeError.InvalidSpirV,
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};
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}
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/// Performs a deep copy
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pub fn dupe(self: *const Self, allocator: std.mem.Allocator) RuntimeError!Self {
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return switch (self.*) {
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.Vector => |v| .{
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.Vector = blk: {
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const values = allocator.dupe(Self, v) catch return RuntimeError.OutOfMemory;
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for (values, v) |*new_value, value| new_value.* = try value.dupe(allocator);
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break :blk values;
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},
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},
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.Matrix => |m| .{
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.Matrix = blk: {
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const values = allocator.dupe(Self, m) catch return RuntimeError.OutOfMemory;
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for (values, m) |*new_value, value| new_value.* = try value.dupe(allocator);
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break :blk values;
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},
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},
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.Array => |a| .{
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.Array = blk: {
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const values = allocator.dupe(Self, a) catch return RuntimeError.OutOfMemory;
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for (values, a) |*new_value, value| new_value.* = try value.dupe(allocator);
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break :blk values;
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},
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},
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.Structure => |s| .{
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.Structure = blk: {
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const values = allocator.dupe(Self, s) catch return RuntimeError.OutOfMemory;
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for (values, s) |*new_value, value| new_value.* = try value.dupe(allocator);
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break :blk values;
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},
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},
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else => self.*,
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};
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}
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pub fn read(self: *const Self, output: []u8) RuntimeError!usize {
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switch (self.*) {
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.Bool => |b| {
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output[0] = if (b == true) 1 else 0;
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return 1;
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},
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.Int => |i| {
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switch (i.bit_count) {
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8 => output[0] = @bitCast(i.value.uint8),
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16 => std.mem.copyForwards(u8, output[0..], std.mem.asBytes(&i.value.uint16)),
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32 => std.mem.copyForwards(u8, output[0..], std.mem.asBytes(&i.value.uint32)),
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64 => std.mem.copyForwards(u8, output[0..], std.mem.asBytes(&i.value.uint64)),
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else => return RuntimeError.InvalidValueType,
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}
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return @divExact(i.bit_count, 8);
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},
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.Float => |f| {
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switch (f.bit_count) {
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16 => std.mem.copyForwards(u8, output[0..], std.mem.asBytes(&f.value.float16)),
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32 => std.mem.copyForwards(u8, output[0..], std.mem.asBytes(&f.value.float32)),
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64 => std.mem.copyForwards(u8, output[0..], std.mem.asBytes(&f.value.float64)),
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else => return RuntimeError.InvalidValueType,
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}
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return @divExact(f.bit_count, 8);
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},
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.Vector4f32 => |vec| {
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inline for (0..4) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 4 * 4;
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},
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.Vector3f32 => |vec| {
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inline for (0..3) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 3 * 4;
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},
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.Vector2f32 => |vec| {
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inline for (0..2) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 2 * 4;
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},
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.Vector4i32 => |vec| {
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inline for (0..4) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 4 * 4;
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},
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.Vector3i32 => |vec| {
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inline for (0..3) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 3 * 4;
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},
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.Vector2i32 => |vec| {
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inline for (0..2) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 2 * 4;
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},
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.Vector4u32 => |vec| {
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inline for (0..4) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 4 * 4;
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},
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.Vector3u32 => |vec| {
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inline for (0..3) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 3 * 4;
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},
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.Vector2u32 => |vec| {
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inline for (0..2) |i| {
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std.mem.copyForwards(u8, output[(i * 4)..], std.mem.asBytes(&vec[i]));
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}
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return 2 * 4;
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},
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.Vector,
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.Matrix,
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.Array,
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.Structure,
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=> |values| {
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var offset: usize = 0;
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for (values) |v| {
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offset += try v.read(output[offset..]);
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}
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return offset;
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},
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else => return RuntimeError.InvalidValueType,
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}
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return 0;
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}
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pub fn writeConst(self: *Self, input: []const u8) RuntimeError!usize {
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return self.write(@constCast(input));
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}
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pub fn write(self: *Self, input: []u8) RuntimeError!usize {
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switch (self.*) {
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.Bool => |*b| {
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b.* = if (input[0] != 0) true else false;
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return 1;
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},
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.Int => |*i| {
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switch (i.bit_count) {
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8 => i.value.uint8 = @bitCast(input[0]),
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16 => std.mem.copyForwards(u8, std.mem.asBytes(&i.value.uint16), input[0..2]),
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32 => std.mem.copyForwards(u8, std.mem.asBytes(&i.value.uint32), input[0..4]),
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64 => std.mem.copyForwards(u8, std.mem.asBytes(&i.value.uint64), input[0..8]),
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else => return RuntimeError.InvalidValueType,
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}
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return @divExact(i.bit_count, 8);
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},
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.Float => |*f| {
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switch (f.bit_count) {
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16 => std.mem.copyForwards(u8, std.mem.asBytes(&f.value.float16), input[0..2]),
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32 => std.mem.copyForwards(u8, std.mem.asBytes(&f.value.float32), input[0..4]),
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64 => std.mem.copyForwards(u8, std.mem.asBytes(&f.value.float64), input[0..8]),
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else => return RuntimeError.InvalidValueType,
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}
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return @divExact(f.bit_count, 8);
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},
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.Vector4f32 => |*vec| {
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inline for (0..4) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 4 * 4;
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},
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.Vector3f32 => |*vec| {
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inline for (0..3) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 3 * 4;
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},
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.Vector2f32 => |*vec| {
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inline for (0..2) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 2 * 4;
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},
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.Vector4i32 => |*vec| {
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inline for (0..4) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 4 * 4;
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},
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.Vector3i32 => |*vec| {
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inline for (0..3) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 3 * 4;
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},
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.Vector2i32 => |*vec| {
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inline for (0..2) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 2 * 4;
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},
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.Vector4u32 => |*vec| {
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inline for (0..4) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 4 * 4;
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},
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.Vector3u32 => |*vec| {
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inline for (0..3) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 3 * 4;
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},
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.Vector2u32 => |*vec| {
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inline for (0..2) |i| {
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const start = i * 4;
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const end = (i + 1) * 4;
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if (start >= input.len or end > input.len) return RuntimeError.OutOfBounds;
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std.mem.copyForwards(u8, std.mem.asBytes(&vec[i]), input[start..end]);
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}
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return 2 * 4;
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},
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.Vector,
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.Matrix,
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.Array,
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.Structure,
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=> |*values| {
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var offset: usize = 0;
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for (values.*) |*v| {
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offset += try v.write(input[offset..]);
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}
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return offset;
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},
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.RuntimeArray => |*arr| arr.data = input[0..],
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else => return RuntimeError.InvalidValueType,
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}
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return 0;
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}
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pub fn flushPtr(self: *Self, allocator: std.mem.Allocator) RuntimeError!void {
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switch (self.*) {
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.Pointer => |*p| {
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if (p.runtime_array_window) |window| {
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switch (p.ptr) {
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.common => |ptr| {
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_ = try ptr.read(window);
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ptr.deinit(allocator);
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allocator.destroy(ptr);
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},
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else => {},
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}
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}
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p.runtime_array_window = null;
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},
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else => {},
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}
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}
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pub fn deinit(self: *Self, allocator: std.mem.Allocator) void {
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switch (self.*) {
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.Vector, .Matrix, .Array, .Structure => |values| {
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for (values) |*value| value.deinit(allocator);
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allocator.free(values);
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},
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else => {},
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}
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}
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};
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