gpu: remove usingnamespace for callbacks.zig and types.zig (#798)

libs/gpu/src/main.zig

@@ -1,10 +1,10 @@
 const std = @import("std");
+const testing = std.testing;
 
 pub const Adapter = @import("adapter.zig").Adapter;
 pub const BindGroup = @import("bind_group.zig").BindGroup;
 pub const BindGroupLayout = @import("bind_group_layout.zig").BindGroupLayout;
 pub const Buffer = @import("buffer.zig").Buffer;
-pub usingnamespace @import("callbacks.zig");
 pub const CommandBuffer = @import("command_buffer.zig").CommandBuffer;
 pub const CommandEncoder = @import("command_encoder.zig").CommandEncoder;
 pub const ComputePassEncoder = @import("compute_pass_encoder.zig").ComputePassEncoder;
@@ -27,13 +27,9 @@ pub const Texture = @import("texture.zig").Texture;
 pub const TextureView = @import("texture_view.zig").TextureView;
 
 pub const dawn = @import("dawn.zig");
-
-pub usingnamespace @import("types.zig");
-
 const instance = @import("instance.zig");
 const device = @import("device.zig");
 const interface = @import("interface.zig");
-const types = @import("types.zig");
 
 pub const Impl = interface.Impl;
 pub const StubInterface = interface.StubInterface;
@@ -44,10 +40,894 @@ pub inline fn createInstance(descriptor: ?*const instance.Instance.Descriptor) ?
     return Impl.createInstance(descriptor);
 }
 
-pub inline fn getProcAddress(_device: *device.Device, proc_name: [*:0]const u8) ?types.Proc {
+pub inline fn getProcAddress(_device: *device.Device, proc_name: [*:0]const u8) ?Proc {
     return Impl.getProcAddress(_device, proc_name);
 }
 
+
+pub const array_layer_count_undef = 0xffffffff;
+pub const copy_stride_undef = 0xffffffff;
+pub const limit_u32_undef = 0xffffffff;
+pub const limit_u64_undef = 0xffffffffffffffff;
+pub const mip_level_count_undef = 0xffffffff;
+pub const whole_map_size = std.math.maxInt(usize);
+pub const whole_size = 0xffffffffffffffff;
+
+/// Generic function pointer type, used for returning API function pointers. Must be
+/// cast to the right `fn (...) callconv(.C) T` type before use.
+pub const Proc = *const fn () callconv(.C) void;
+
+pub const ComputePassTimestampWrite = extern struct {
+    query_set: *QuerySet,
+    query_index: u32,
+    location: ComputePassTimestampLocation,
+};
+
+pub const RenderPassDepthStencilAttachment = extern struct {
+    view: *TextureView,
+    depth_load_op: LoadOp = .undefined,
+    depth_store_op: StoreOp = .undefined,
+    /// deprecated
+    clear_depth: f32 = std.math.nan(f32),
+    depth_clear_value: f32 = 0,
+    depth_read_only: bool = false,
+    stencil_load_op: LoadOp = .undefined,
+    stencil_store_op: StoreOp = .undefined,
+    /// deprecated
+    clear_stencil: u32 = 0,
+    stencil_clear_value: u32 = 0,
+    stencil_read_only: bool = false,
+};
+
+pub const RenderPassTimestampWrite = extern struct {
+    query_set: *QuerySet,
+    query_index: u32,
+    location: RenderPassTimestampLocation,
+};
+
+pub const RequestAdapterOptions = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    compatible_surface: ?*Surface = null,
+    power_preference: PowerPreference = .undefined,
+    force_fallback_adapter: bool = false,
+};
+
+pub const ComputePassDescriptor = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    label: ?[*:0]const u8 = null,
+    timestamp_write_count: u32 = 0,
+    timestamp_writes: ?[*]const ComputePassTimestampWrite = null,
+
+    /// Provides a slightly friendlier Zig API to initialize this structure.
+    pub inline fn init(v: struct {
+        next_in_chain: ?*const ChainedStruct = null,
+        label: ?[*:0]const u8 = null,
+        timestamp_writes: ?[]const ComputePassTimestampWrite = null,
+    }) ComputePassDescriptor {
+        return .{
+            .next_in_chain = v.next_in_chain,
+            .label = v.label,
+            .timestamp_write_count = if (v.timestamp_writes) |e| @intCast(u32, e.len) else 0,
+            .timestamp_writes = if (v.timestamp_writes) |e| e.ptr else null,
+        };
+    }
+};
+
+pub const RenderPassDescriptor = extern struct {
+    pub const NextInChain = extern union {
+        generic: ?*const ChainedStruct,
+        max_draw_count: *const RenderPassDescriptorMaxDrawCount,
+    };
+
+    next_in_chain: NextInChain = .{ .generic = null },
+    label: ?[*:0]const u8 = null,
+    color_attachment_count: u32 = 0,
+    color_attachments: ?[*]const RenderPassColorAttachment = null,
+    depth_stencil_attachment: ?*const RenderPassDepthStencilAttachment = null,
+    occlusion_query_set: ?*QuerySet = null,
+    timestamp_write_count: u32 = 0,
+    timestamp_writes: ?[*]const RenderPassTimestampWrite = null,
+
+    /// Provides a slightly friendlier Zig API to initialize this structure.
+    pub inline fn init(v: struct {
+        next_in_chain: NextInChain = .{ .generic = null },
+        label: ?[*:0]const u8 = null,
+        color_attachments: ?[]const RenderPassColorAttachment = null,
+        depth_stencil_attachment: ?*const RenderPassDepthStencilAttachment = null,
+        occlusion_query_set: ?*QuerySet = null,
+        timestamp_writes: ?[]const RenderPassTimestampWrite = null,
+    }) RenderPassDescriptor {
+        return .{
+            .next_in_chain = v.next_in_chain,
+            .label = v.label,
+            .color_attachment_count = if (v.color_attachments) |e| @intCast(u32, e.len) else 0,
+            .color_attachments = if (v.color_attachments) |e| e.ptr else null,
+            .depth_stencil_attachment = v.depth_stencil_attachment,
+            .occlusion_query_set = v.occlusion_query_set,
+            .timestamp_write_count = if (v.timestamp_writes) |e| @intCast(u32, e.len) else 0,
+            .timestamp_writes = if (v.timestamp_writes) |e| e.ptr else null,
+        };
+    }
+};
+
+pub const AlphaMode = enum(u32) { premultiplied = 0x00000000, unpremultiplied = 0x00000001, opaq = 0x00000002 };
+
+pub const BackendType = enum(u32) {
+    null,
+    webgpu,
+    d3d11,
+    d3d12,
+    metal,
+    vulkan,
+    opengl,
+    opengles,
+
+    pub fn name(t: BackendType) []const u8 {
+        return switch (t) {
+            .null => "Null",
+            .webgpu => "WebGPU",
+            .d3d11 => "D3D11",
+            .d3d12 => "D3D12",
+            .metal => "Metal",
+            .vulkan => "Vulkan",
+            .opengl => "OpenGL",
+            .opengles => "OpenGLES",
+        };
+    }
+};
+
+pub const BlendFactor = enum(u32) {
+    zero = 0x00000000,
+    one = 0x00000001,
+    src = 0x00000002,
+    one_minus_src = 0x00000003,
+    src_alpha = 0x00000004,
+    one_minus_src_alpha = 0x00000005,
+    dst = 0x00000006,
+    one_minus_dst = 0x00000007,
+    dst_alpha = 0x00000008,
+    one_minus_dst_alpha = 0x00000009,
+    src_alpha_saturated = 0x0000000A,
+    constant = 0x0000000B,
+    one_minus_constant = 0x0000000C,
+};
+
+pub const BlendOperation = enum(u32) {
+    add = 0x00000000,
+    subtract = 0x00000001,
+    reverse_subtract = 0x00000002,
+    min = 0x00000003,
+    max = 0x00000004,
+};
+
+pub const CompareFunction = enum(u32) {
+    undefined = 0x00000000,
+    never = 0x00000001,
+    less = 0x00000002,
+    less_equal = 0x00000003,
+    greater = 0x00000004,
+    greater_equal = 0x00000005,
+    equal = 0x00000006,
+    not_equal = 0x00000007,
+    always = 0x00000008,
+};
+
+pub const CompilationInfoRequestStatus = enum(u32) {
+    success = 0x00000000,
+    err = 0x00000001,
+    device_lost = 0x00000002,
+    unknown = 0x00000003,
+};
+
+pub const CompilationMessageType = enum(u32) {
+    err = 0x00000000,
+    warning = 0x00000001,
+    info = 0x00000002,
+};
+
+pub const ComputePassTimestampLocation = enum(u32) {
+    beginning = 0x00000000,
+    end = 0x00000001,
+};
+
+pub const CreatePipelineAsyncStatus = enum(u32) {
+    success = 0x00000000,
+    err = 0x00000001,
+    device_lost = 0x00000002,
+    device_destroyed = 0x00000003,
+    unknown = 0x00000004,
+};
+
+pub const CullMode = enum(u32) {
+    none = 0x00000000,
+    front = 0x00000001,
+    back = 0x00000002,
+};
+
+pub const ErrorFilter = enum(u32) {
+    validation = 0x00000000,
+    out_of_memory = 0x00000001,
+    internal = 0x00000002,
+};
+
+pub const ErrorType = enum(u32) {
+    no_error = 0x00000000,
+    validation = 0x00000001,
+    out_of_memory = 0x00000002,
+    internal = 0x00000003,
+    unknown = 0x00000004,
+    device_lost = 0x00000005,
+};
+
+pub const FeatureName = enum(u32) {
+    undefined = 0x00000000,
+    depth_clip_control = 0x00000001,
+    depth32_float_stencil8 = 0x00000002,
+    timestamp_query = 0x00000003,
+    pipeline_statistics_query = 0x00000004,
+    texture_compression_bc = 0x00000005,
+    texture_compression_etc2 = 0x00000006,
+    texture_compression_astc = 0x00000007,
+    indirect_first_instance = 0x00000008,
+    shader_f16 = 0x00000009,
+    rg11_b10_ufloat_renderable = 0x0000000A,
+    dawn_shader_float16 = 0x000003e9,
+    dawn_internal_usages = 0x000003ea,
+    dawn_multi_planar_formats = 0x000003eb,
+    dawn_native = 0x000003ec,
+    chromium_experimental_dp4a = 0x000003ed,
+    timestamp_query_inside_passes = 0x000003EE,
+};
+
+pub const FilterMode = enum(u32) {
+    nearest = 0x00000000,
+    linear = 0x00000001,
+};
+
+pub const FrontFace = enum(u32) {
+    ccw = 0x00000000,
+    cw = 0x00000001,
+};
+
+pub const IndexFormat = enum(u32) {
+    undefined = 0x00000000,
+    uint16 = 0x00000001,
+    uint32 = 0x00000002,
+};
+
+pub const LoadOp = enum(u32) {
+    undefined = 0x00000000,
+    clear = 0x00000001,
+    load = 0x00000002,
+};
+
+pub const LoggingType = enum(u32) {
+    verbose = 0x00000000,
+    info = 0x00000001,
+    warning = 0x00000002,
+    err = 0x00000003,
+};
+
+pub const PipelineStatisticName = enum(u32) {
+    vertex_shader_invocations = 0x00000000,
+    clipper_invocations = 0x00000001,
+    clipper_primitives_out = 0x00000002,
+    fragment_shader_invocations = 0x00000003,
+    compute_shader_invocations = 0x00000004,
+};
+
+pub const PowerPreference = enum(u32) {
+    undefined = 0x00000000,
+    low_power = 0x00000001,
+    high_performance = 0x00000002,
+};
+
+pub const PresentMode = enum(u32) {
+    immediate = 0x00000000,
+    mailbox = 0x00000001,
+    fifo = 0x00000002,
+};
+
+pub const PrimitiveTopology = enum(u32) {
+    point_list = 0x00000000,
+    line_list = 0x00000001,
+    line_strip = 0x00000002,
+    triangle_list = 0x00000003,
+    triangle_strip = 0x00000004,
+};
+
+pub const QueryType = enum(u32) {
+    occlusion = 0x00000000,
+    pipeline_statistics = 0x00000001,
+    timestamp = 0x00000002,
+};
+
+pub const RenderPassTimestampLocation = enum(u32) {
+    beginning = 0x00000000,
+    end = 0x00000001,
+};
+
+pub const RequestAdapterStatus = enum(u32) {
+    success = 0x00000000,
+    unavailable = 0x00000001,
+    err = 0x00000002,
+    unknown = 0x00000003,
+};
+
+pub const RequestDeviceStatus = enum(u32) {
+    success = 0x00000000,
+    err = 0x00000001,
+    unknown = 0x00000002,
+};
+
+pub const SType = enum(u32) {
+    invalid = 0x00000000,
+    surface_descriptor_from_metal_layer = 0x00000001,
+    surface_descriptor_from_windows_hwnd = 0x00000002,
+    surface_descriptor_from_xlib_window = 0x00000003,
+    surface_descriptor_from_canvas_html_selector = 0x00000004,
+    shader_module_spirv_descriptor = 0x00000005,
+    shader_module_wgsl_descriptor = 0x00000006,
+    primitive_depth_clip_control = 0x00000007,
+    surface_descriptor_from_wayland_surface = 0x00000008,
+    surface_descriptor_from_android_native_window = 0x00000009,
+    surface_descriptor_from_windows_core_window = 0x0000000B,
+    external_texture_binding_entry = 0x0000000C,
+    external_texture_binding_layout = 0x0000000D,
+    surface_descriptor_from_windows_swap_chain_panel = 0x0000000E,
+    render_pass_descriptor_max_draw_count = 0x0000000F,
+    dawn_texture_internal_usage_descriptor = 0x000003E8,
+    dawn_toggles_device_descriptor = 0x000003EA,
+    dawn_encoder_internal_usage_descriptor = 0x000003EB,
+    dawn_instance_descriptor = 0x000003EC,
+    dawn_cache_device_descriptor = 0x000003ED,
+    dawn_adapter_properties_power_preference = 0x000003EE,
+    dawn_buffer_descriptor_error_info_from_wire_client = 0x000003EF,
+};
+
+pub const StencilOperation = enum(u32) {
+    keep = 0x00000000,
+    zero = 0x00000001,
+    replace = 0x00000002,
+    invert = 0x00000003,
+    increment_clamp = 0x00000004,
+    decrement_clamp = 0x00000005,
+    increment_wrap = 0x00000006,
+    decrement_wrap = 0x00000007,
+};
+
+pub const StorageTextureAccess = enum(u32) {
+    undefined = 0x00000000,
+    write_only = 0x00000001,
+};
+
+pub const StoreOp = enum(u32) {
+    undefined = 0x00000000,
+    store = 0x00000001,
+    discard = 0x00000002,
+};
+
+pub const VertexFormat = enum(u32) {
+    undefined = 0x00000000,
+    uint8x2 = 0x00000001,
+    uint8x4 = 0x00000002,
+    sint8x2 = 0x00000003,
+    sint8x4 = 0x00000004,
+    unorm8x2 = 0x00000005,
+    unorm8x4 = 0x00000006,
+    snorm8x2 = 0x00000007,
+    snorm8x4 = 0x00000008,
+    uint16x2 = 0x00000009,
+    uint16x4 = 0x0000000a,
+    sint16x2 = 0x0000000b,
+    sint16x4 = 0x0000000c,
+    unorm16x2 = 0x0000000d,
+    unorm16x4 = 0x0000000e,
+    snorm16x2 = 0x0000000f,
+    snorm16x4 = 0x00000010,
+    float16x2 = 0x00000011,
+    float16x4 = 0x00000012,
+    float32 = 0x00000013,
+    float32x2 = 0x00000014,
+    float32x3 = 0x00000015,
+    float32x4 = 0x00000016,
+    uint32 = 0x00000017,
+    uint32x2 = 0x00000018,
+    uint32x3 = 0x00000019,
+    uint32x4 = 0x0000001a,
+    sint32 = 0x0000001b,
+    sint32x2 = 0x0000001c,
+    sint32x3 = 0x0000001d,
+    sint32x4 = 0x0000001e,
+};
+
+pub const VertexStepMode = enum(u32) {
+    vertex = 0x00000000,
+    instance = 0x00000001,
+    vertex_buffer_not_used = 0x00000002,
+};
+
+pub const ColorWriteMaskFlags = packed struct(u32) {
+    red: bool = false,
+    green: bool = false,
+    blue: bool = false,
+    alpha: bool = false,
+
+    _padding: u28 = 0,
+
+    comptime {
+        std.debug.assert(
+            @sizeOf(@This()) == @sizeOf(u32) and
+                @bitSizeOf(@This()) == @bitSizeOf(u32),
+        );
+    }
+
+    pub const all = ColorWriteMaskFlags{
+        .red = true,
+        .green = true,
+        .blue = true,
+        .alpha = true,
+    };
+
+    pub fn equal(a: ColorWriteMaskFlags, b: ColorWriteMaskFlags) bool {
+        return @truncate(u4, @bitCast(u32, a)) == @truncate(u4, @bitCast(u32, b));
+    }
+};
+
+pub const MapModeFlags = packed struct(u32) {
+    read: bool = false,
+    write: bool = false,
+
+    _padding: u30 = 0,
+
+    comptime {
+        std.debug.assert(
+            @sizeOf(@This()) == @sizeOf(u32) and
+                @bitSizeOf(@This()) == @bitSizeOf(u32),
+        );
+    }
+
+    pub const undef = MapModeFlags{};
+
+    pub fn equal(a: MapModeFlags, b: MapModeFlags) bool {
+        return @truncate(u2, @bitCast(u32, a)) == @truncate(u2, @bitCast(u32, b));
+    }
+};
+
+pub const ShaderStageFlags = packed struct(u32) {
+    vertex: bool = false,
+    fragment: bool = false,
+    compute: bool = false,
+
+    _padding: u29 = 0,
+
+    comptime {
+        std.debug.assert(
+            @sizeOf(@This()) == @sizeOf(u32) and
+                @bitSizeOf(@This()) == @bitSizeOf(u32),
+        );
+    }
+
+    pub const none = ShaderStageFlags{};
+
+    pub fn equal(a: ShaderStageFlags, b: ShaderStageFlags) bool {
+        return @truncate(u3, @bitCast(u32, a)) == @truncate(u3, @bitCast(u32, b));
+    }
+};
+
+pub const ChainedStruct = extern struct {
+    // TODO: dawn: not marked as nullable in dawn.json but in fact is.
+    next: ?*const ChainedStruct = null,
+    s_type: SType,
+};
+
+pub const ChainedStructOut = extern struct {
+    // TODO: dawn: not marked as nullable in dawn.json but in fact is.
+    next: ?*ChainedStructOut = null,
+    s_type: SType,
+};
+
+pub const BlendComponent = extern struct {
+    operation: BlendOperation = .add,
+    src_factor: BlendFactor = .one,
+    dst_factor: BlendFactor = .zero,
+};
+
+pub const Color = extern struct {
+    r: f64,
+    g: f64,
+    b: f64,
+    a: f64,
+};
+
+pub const Extent2D = extern struct {
+    width: u32,
+    height: u32 = 1,
+};
+
+pub const Extent3D = extern struct {
+    width: u32,
+    height: u32 = 1,
+    depth_or_array_layers: u32 = 1,
+};
+
+pub const Limits = extern struct {
+    max_texture_dimension_1d: u32 = limit_u32_undef,
+    max_texture_dimension_2d: u32 = limit_u32_undef,
+    max_texture_dimension_3d: u32 = limit_u32_undef,
+    max_texture_array_layers: u32 = limit_u32_undef,
+    max_bind_groups: u32 = limit_u32_undef,
+    max_bindings_per_bind_group: u32 = limit_u32_undef,
+    max_dynamic_uniform_buffers_per_pipeline_layout: u32 = limit_u32_undef,
+    max_dynamic_storage_buffers_per_pipeline_layout: u32 = limit_u32_undef,
+    max_sampled_textures_per_shader_stage: u32 = limit_u32_undef,
+    max_samplers_per_shader_stage: u32 = limit_u32_undef,
+    max_storage_buffers_per_shader_stage: u32 = limit_u32_undef,
+    max_storage_textures_per_shader_stage: u32 = limit_u32_undef,
+    max_uniform_buffers_per_shader_stage: u32 = limit_u32_undef,
+    max_uniform_buffer_binding_size: u64 = limit_u64_undef,
+    max_storage_buffer_binding_size: u64 = limit_u64_undef,
+    min_uniform_buffer_offset_alignment: u32 = limit_u32_undef,
+    min_storage_buffer_offset_alignment: u32 = limit_u32_undef,
+    max_vertex_buffers: u32 = limit_u32_undef,
+    max_buffer_size: u64 = limit_u64_undef,
+    max_vertex_attributes: u32 = limit_u32_undef,
+    max_vertex_buffer_array_stride: u32 = limit_u32_undef,
+    max_inter_stage_shader_components: u32 = limit_u32_undef,
+    max_inter_stage_shader_variables: u32 = limit_u32_undef,
+    max_color_attachments: u32 = limit_u32_undef,
+    max_color_attachment_bytes_per_sample: u32 = limit_u32_undef,
+    max_compute_workgroup_storage_size: u32 = limit_u32_undef,
+    max_compute_invocations_per_workgroup: u32 = limit_u32_undef,
+    max_compute_workgroup_size_x: u32 = limit_u32_undef,
+    max_compute_workgroup_size_y: u32 = limit_u32_undef,
+    max_compute_workgroup_size_z: u32 = limit_u32_undef,
+    max_compute_workgroups_per_dimension: u32 = limit_u32_undef,
+};
+
+pub const Origin2D = extern struct {
+    x: u32 = 0,
+    y: u32 = 0,
+};
+
+pub const Origin3D = extern struct {
+    x: u32 = 0,
+    y: u32 = 0,
+    z: u32 = 0,
+};
+
+pub const CompilationMessage = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    message: ?[*:0]const u8 = null,
+    type: CompilationMessageType,
+    line_num: u64,
+    line_pos: u64,
+    offset: u64,
+    length: u64,
+    utf16_line_pos: u64,
+    utf16_offset: u64,
+    utf16_length: u64,
+};
+
+pub const ConstantEntry = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    key: [*:0]const u8,
+    value: f64,
+};
+
+pub const CopyTextureForBrowserOptions = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    flip_y: bool = false,
+    needs_color_space_conversion: bool = false,
+    src_alpha_mode: AlphaMode = .unpremultiplied,
+    src_transfer_function_parameters: ?*const [7]f32 = null,
+    conversion_matrix: ?*const [9]f32 = null,
+    dst_transfer_function_parameters: ?*const [7]f32 = null,
+    dst_alpha_mode: AlphaMode = .unpremultiplied,
+    internal_usage: bool = false,
+};
+
+pub const MultisampleState = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    count: u32 = 1,
+    mask: u32 = 0xFFFFFFFF,
+    alpha_to_coverage_enabled: bool = false,
+};
+
+pub const PrimitiveDepthClipControl = extern struct {
+    chain: ChainedStruct = .{ .next = null, .s_type = .primitive_depth_clip_control },
+    unclipped_depth: bool = false,
+};
+
+pub const PrimitiveState = extern struct {
+    pub const NextInChain = extern union {
+        generic: ?*const ChainedStruct,
+        primitive_depth_clip_control: *const PrimitiveDepthClipControl,
+    };
+
+    next_in_chain: NextInChain = .{ .generic = null },
+    topology: PrimitiveTopology = .triangle_list,
+    strip_index_format: IndexFormat = .undefined,
+    front_face: FrontFace = .ccw,
+    cull_mode: CullMode = .none,
+};
+
+pub const RenderPassDescriptorMaxDrawCount = extern struct {
+    chain: ChainedStruct = .{ .next = null, .s_type = .render_pass_descriptor_max_draw_count },
+    max_draw_count: u64 = 50000000,
+};
+
+pub const StencilFaceState = extern struct {
+    compare: CompareFunction = .always,
+    fail_op: StencilOperation = .keep,
+    depth_fail_op: StencilOperation = .keep,
+    pass_op: StencilOperation = .keep,
+};
+
+pub const StorageTextureBindingLayout = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    access: StorageTextureAccess = .undefined,
+    format: Texture.Format = .undefined,
+    view_dimension: TextureView.Dimension = .dimension_undef,
+};
+
+pub const VertexAttribute = extern struct {
+    format: VertexFormat,
+    offset: u64,
+    shader_location: u32,
+};
+
+pub const BlendState = extern struct {
+    color: BlendComponent = .{},
+    alpha: BlendComponent = .{},
+};
+
+pub const CompilationInfo = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    message_count: u32,
+    messages: ?[*]const CompilationMessage = null,
+
+    /// Helper to get messages as a slice.
+    pub fn getMessages(info: CompilationInfo) ?[]const CompilationMessage {
+        if (info.messages) |messages| {
+            return messages[0..info.message_count];
+        }
+        return null;
+    }
+};
+
+pub const DepthStencilState = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    format: Texture.Format,
+    depth_write_enabled: bool = false,
+    depth_compare: CompareFunction = .always,
+    stencil_front: StencilFaceState = .{},
+    stencil_back: StencilFaceState = .{},
+    stencil_read_mask: u32 = 0xFFFFFFFF,
+    stencil_write_mask: u32 = 0xFFFFFFFF,
+    depth_bias: i32 = 0,
+    depth_bias_slope_scale: f32 = 0.0,
+    depth_bias_clamp: f32 = 0.0,
+};
+
+pub const ImageCopyBuffer = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    layout: Texture.DataLayout,
+    buffer: *Buffer,
+};
+
+pub const ImageCopyExternalTexture = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    external_texture: *ExternalTexture,
+    origin: Origin3D,
+};
+
+pub const ImageCopyTexture = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    texture: *Texture,
+    mip_level: u32 = 0,
+    origin: Origin3D = .{},
+    aspect: Texture.Aspect = .all,
+};
+
+pub const ProgrammableStageDescriptor = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    module: *ShaderModule,
+    entry_point: [*:0]const u8,
+    constant_count: u32 = 0,
+    constants: ?[*]const ConstantEntry = null,
+
+    /// Provides a slightly friendlier Zig API to initialize this structure.
+    pub inline fn init(v: struct {
+        next_in_chain: ?*const ChainedStruct = null,
+        module: *ShaderModule,
+        entry_point: [*:0]const u8,
+        constants: ?[]const ConstantEntry = null,
+    }) ProgrammableStageDescriptor {
+        return .{
+            .next_in_chain = v.next_in_chain,
+            .module = v.module,
+            .entry_point = v.entry_point,
+            .constant_count = if (v.constants) |e| @intCast(u32, e.len) else 0,
+            .constants = if (v.constants) |e| e.ptr else null,
+        };
+    }
+};
+
+pub const RenderPassColorAttachment = extern struct {
+    view: ?*TextureView = null,
+    resolve_target: ?*TextureView = null,
+    load_op: LoadOp,
+    store_op: StoreOp,
+    /// deprecated
+    clear_color: Color = .{
+        .r = std.math.nan(f64),
+        .g = std.math.nan(f64),
+        .b = std.math.nan(f64),
+        .a = std.math.nan(f64),
+    },
+    clear_value: Color,
+};
+
+pub const RequiredLimits = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    limits: Limits,
+};
+
+/// Used to query limits from a Device or Adapter. Can be used as follows:
+///
+/// ```
+/// var supported: gpu.SupportedLimits = .{};
+/// if (!adapter.getLimits(&supported)) @panic("unsupported options");
+/// ```
+///
+/// Note that `getLimits` can only fail if `next_in_chain` options are invalid.
+pub const SupportedLimits = extern struct {
+    next_in_chain: ?*ChainedStructOut = null,
+    limits: Limits = undefined,
+};
+
+pub const VertexBufferLayout = extern struct {
+    array_stride: u64,
+    step_mode: VertexStepMode = .vertex,
+    attribute_count: u32,
+    attributes: ?[*]const VertexAttribute = null,
+
+    /// Provides a slightly friendlier Zig API to initialize this structure.
+    pub inline fn init(v: struct {
+        array_stride: u64,
+        step_mode: VertexStepMode = .vertex,
+        attributes: ?[]const VertexAttribute = null,
+    }) VertexBufferLayout {
+        return .{
+            .array_stride = v.array_stride,
+            .step_mode = v.step_mode,
+            .attribute_count = if (v.attributes) |e| @intCast(u32, e.len) else 0,
+            .attributes = if (v.attributes) |e| e.ptr else null,
+        };
+    }
+};
+
+pub const ColorTargetState = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    format: Texture.Format,
+    blend: ?*const BlendState = null,
+    write_mask: ColorWriteMaskFlags = ColorWriteMaskFlags.all,
+};
+
+pub const VertexState = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    module: *ShaderModule,
+    entry_point: [*:0]const u8,
+    constant_count: u32 = 0,
+    constants: ?[*]const ConstantEntry = null,
+    buffer_count: u32 = 0,
+    buffers: ?[*]const VertexBufferLayout = null,
+
+    /// Provides a slightly friendlier Zig API to initialize this structure.
+    pub inline fn init(v: struct {
+        next_in_chain: ?*const ChainedStruct = null,
+        module: *ShaderModule,
+        entry_point: [*:0]const u8,
+        constants: ?[]const ConstantEntry = null,
+        buffers: ?[]const VertexBufferLayout = null,
+    }) VertexState {
+        return .{
+            .next_in_chain = v.next_in_chain,
+            .module = v.module,
+            .entry_point = v.entry_point,
+            .constant_count = if (v.constants) |e| @intCast(u32, e.len) else 0,
+            .constants = if (v.constants) |e| e.ptr else null,
+            .buffer_count = if (v.buffers) |e| @intCast(u32, e.len) else 0,
+            .buffers = if (v.buffers) |e| e.ptr else null,
+        };
+    }
+};
+
+pub const FragmentState = extern struct {
+    next_in_chain: ?*const ChainedStruct = null,
+    module: *ShaderModule,
+    entry_point: [*:0]const u8,
+    constant_count: u32 = 0,
+    constants: ?[*]const ConstantEntry = null,
+    target_count: u32,
+    targets: ?[*]const ColorTargetState = null,
+
+    /// Provides a slightly friendlier Zig API to initialize this structure.
+    pub inline fn init(v: struct {
+        next_in_chain: ?*const ChainedStruct = null,
+        module: *ShaderModule,
+        entry_point: [*:0]const u8,
+        constants: ?[]const ConstantEntry = null,
+        targets: ?[]const ColorTargetState = null,
+    }) FragmentState {
+        return .{
+            .next_in_chain = v.next_in_chain,
+            .module = v.module,
+            .entry_point = v.entry_point,
+            .constant_count = if (v.constants) |e| @intCast(u32, e.len) else 0,
+            .constants = if (v.constants) |e| e.ptr else null,
+            .target_count = if (v.targets) |e| @intCast(u32, e.len) else 0,
+            .targets = if (v.targets) |e| e.ptr else null,
+        };
+    }
+};
+
+test "BackendType name" {
+    try testing.expectEqualStrings("Vulkan", BackendType.vulkan.name());
+}
+
+test "enum name" {
+    try testing.expectEqualStrings("front", @tagName(CullMode.front));
+}
+
+pub const CompilationInfoCallback = *const fn (
+    status: CompilationInfoRequestStatus,
+    compilation_info: *const CompilationInfo,
+    userdata: ?*anyopaque,
+) callconv(.C) void;
+
+pub const ErrorCallback = *const fn (
+    typ: ErrorType,
+    message: [*:0]const u8,
+    userdata: ?*anyopaque,
+) callconv(.C) void;
+
+pub const LoggingCallback = *const fn (
+    typ: LoggingType,
+    message: [*:0]const u8,
+    userdata: ?*anyopaque,
+) callconv(.C) void;
+
+pub const RequestDeviceCallback = *const fn (
+    status: RequestDeviceStatus,
+    device: *Device,
+    message: ?[*:0]const u8,
+    userdata: ?*anyopaque,
+) callconv(.C) void;
+
+pub const RequestAdapterCallback = *const fn (
+    status: RequestAdapterStatus,
+    adapter: *Adapter,
+    message: ?[*:0]const u8,
+    userdata: ?*anyopaque,
+) callconv(.C) void;
+
+pub const CreateComputePipelineAsyncCallback = *const fn (
+    status: CreatePipelineAsyncStatus,
+    compute_pipeline: *ComputePipeline,
+    message: [*:0]const u8,
+    userdata: ?*anyopaque,
+) callconv(.C) void;
+
+pub const CreateRenderPipelineAsyncCallback = *const fn (
+    status: CreatePipelineAsyncStatus,
+    pipeline: *RenderPipeline,
+    message: [*:0]const u8,
+    userdata: ?*anyopaque,
+) callconv(.C) void;
+
+
 test {
     std.testing.refAllDeclsRecursive(@This());
 }