gpu: use null and undefined in enums

Closes #626
Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>

libs/gpu/examples/sample_utils.zig

@@ -34,8 +34,8 @@ fn detectBackendType(allocator: std.mem.Allocator) !gpu.BackendType {
     const MACH_GPU_BACKEND = try getEnvVarOwned(allocator, "MACH_GPU_BACKEND");
     if (MACH_GPU_BACKEND) |backend| {
         defer allocator.free(backend);
-        if (std.ascii.eqlIgnoreCase(backend, "null")) return .nul;
-        if (std.ascii.eqlIgnoreCase(backend, "webgpu")) return .nul;
+        if (std.ascii.eqlIgnoreCase(backend, "null")) return .null;
+        if (std.ascii.eqlIgnoreCase(backend, "webgpu")) return .null;
         if (std.ascii.eqlIgnoreCase(backend, "d3d11")) return .d3d11;
         if (std.ascii.eqlIgnoreCase(backend, "d3d12")) return .d3d12;
         if (std.ascii.eqlIgnoreCase(backend, "metal")) return .metal;

libs/gpu/src/buffer.zig

@@ -7,7 +7,7 @@ pub const Buffer = opaque {
     pub const MapCallback = *const fn (status: MapAsyncStatus, userdata: ?*anyopaque) callconv(.C) void;
 
     pub const BindingType = enum(u32) {
-        undef = 0x00000000,
+        undefined = 0x00000000,
         uniform = 0x00000001,
         storage = 0x00000002,
         read_only_storage = 0x00000003,
@@ -52,7 +52,7 @@ pub const Buffer = opaque {
 
     pub const BindingLayout = extern struct {
         next_in_chain: ?*const ChainedStruct = null,
-        type: BindingType = .undef,
+        type: BindingType = .undefined,
         has_dynamic_offset: bool = false,
         min_binding_size: u64 = 0,
     };

libs/gpu/src/device.zig

@@ -38,7 +38,7 @@ pub const Device = opaque {
     ) callconv(.C) void;
 
     pub const LostReason = enum(u32) {
-        undef = 0x00000000,
+        undefined = 0x00000000,
         destroyed = 0x00000001,
     };
 

libs/gpu/src/render_bundle_encoder.zig

@@ -13,7 +13,7 @@ pub const RenderBundleEncoder = opaque {
         label: ?[*:0]const u8 = null,
         color_formats_count: u32 = 0,
         color_formats: ?[*]const Texture.Format = null,
-        depth_stencil_format: Texture.Format = .undef,
+        depth_stencil_format: Texture.Format = .undefined,
         sample_count: u32 = 1,
         depth_read_only: bool = false,
         stencil_read_only: bool = false,
@@ -23,7 +23,7 @@ pub const RenderBundleEncoder = opaque {
             next_in_chain: ?*const ChainedStruct = null,
             label: ?[*:0]const u8 = null,
             color_formats: ?[]const Texture.Format = null,
-            depth_stencil_format: Texture.Format = .undef,
+            depth_stencil_format: Texture.Format = .undefined,
             sample_count: u32 = 1,
             depth_read_only: bool = false,
             stencil_read_only: bool = false,

libs/gpu/src/sampler.zig

@@ -11,7 +11,7 @@ pub const Sampler = opaque {
     };
 
     pub const BindingType = enum(u32) {
-        undef = 0x00000000,
+        undefined = 0x00000000,
         filtering = 0x00000001,
         non_filtering = 0x00000002,
         comparison = 0x00000003,
@@ -19,7 +19,7 @@ pub const Sampler = opaque {
 
     pub const BindingLayout = extern struct {
         next_in_chain: ?*const ChainedStruct = null,
-        type: BindingType = .undef,
+        type: BindingType = .undefined,
     };
 
     pub const Descriptor = extern struct {
@@ -33,7 +33,7 @@ pub const Sampler = opaque {
         mipmap_filter: FilterMode = .nearest,
         lod_min_clamp: f32 = 0.0,
         lod_max_clamp: f32 = 1000.0,
-        compare: CompareFunction = .undef,
+        compare: CompareFunction = .undefined,
         max_anisotropy: u16 = 1,
     };
 

libs/gpu/src/texture.zig

@@ -29,7 +29,7 @@ pub const Texture = opaque {
     };
 
     pub const Format = enum(u32) {
-        undef = 0x00000000,
+        undefined = 0x00000000,
         r8_unorm = 0x00000001,
         r8_snorm = 0x00000002,
         r8_uint = 0x00000003,
@@ -128,7 +128,7 @@ pub const Texture = opaque {
     };
 
     pub const SampleType = enum(u32) {
-        undef = 0x00000000,
+        undefined = 0x00000000,
         float = 0x00000001,
         unfilterable_float = 0x00000002,
         depth = 0x00000003,
@@ -162,7 +162,7 @@ pub const Texture = opaque {
 
     pub const BindingLayout = extern struct {
         next_in_chain: ?*const ChainedStruct = null,
-        sample_type: SampleType = .undef,
+        sample_type: SampleType = .undefined,
         view_dimension: TextureView.Dimension = .dimension_undef,
         multisampled: bool = false,
     };

libs/gpu/src/texture_view.zig

@@ -17,7 +17,7 @@ pub const TextureView = opaque {
     pub const Descriptor = extern struct {
         next_in_chain: ?*const ChainedStruct = null,
         label: ?[*:0]const u8 = null,
-        format: Texture.Format = .undef,
+        format: Texture.Format = .undefined,
         dimension: Dimension = .dimension_undef,
         base_mip_level: u32 = 0,
         mip_level_count: u32 = types.mip_level_count_undef,

libs/gpu/src/types.zig

@@ -27,14 +27,14 @@ pub const ComputePassTimestampWrite = extern struct {
 
 pub const RenderPassDepthStencilAttachment = extern struct {
     view: *TextureView,
-    depth_load_op: LoadOp = .undef,
-    depth_store_op: StoreOp = .undef,
+    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 = .undef,
-    stencil_store_op: StoreOp = .undef,
+    stencil_load_op: LoadOp = .undefined,
+    stencil_store_op: StoreOp = .undefined,
     /// deprecated
     clear_stencil: u32 = 0,
     stencil_clear_value: u32 = 0,
@@ -50,7 +50,7 @@ pub const RenderPassTimestampWrite = extern struct {
 pub const RequestAdapterOptions = extern struct {
     next_in_chain: ?*const ChainedStruct = null,
     compatible_surface: ?*Surface = null,
-    power_preference: PowerPreference = .undef,
+    power_preference: PowerPreference = .undefined,
     force_fallback_adapter: bool = false,
 };
 
@@ -115,7 +115,7 @@ pub const RenderPassDescriptor = extern struct {
 pub const AlphaMode = enum(u32) { premultiplied = 0x00000000, unpremultiplied = 0x00000001, opaq = 0x00000002 };
 
 pub const BackendType = enum(u32) {
-    nul,
+    null,
     webgpu,
     d3d11,
     d3d12,
@@ -126,7 +126,7 @@ pub const BackendType = enum(u32) {
 
     pub fn name(t: BackendType) []const u8 {
         return switch (t) {
-            .nul => "Null",
+            .null => "Null",
             .webgpu => "WebGPU",
             .d3d11 => "D3D11",
             .d3d12 => "D3D12",
@@ -163,7 +163,7 @@ pub const BlendOperation = enum(u32) {
 };
 
 pub const CompareFunction = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     never = 0x00000001,
     less = 0x00000002,
     less_equal = 0x00000003,
@@ -220,7 +220,7 @@ pub const ErrorType = enum(u32) {
 };
 
 pub const FeatureName = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     depth_clip_control = 0x00000001,
     depth32_float_stencil8 = 0x00000002,
     timestamp_query = 0x00000003,
@@ -247,13 +247,13 @@ pub const FrontFace = enum(u32) {
 };
 
 pub const IndexFormat = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     uint16 = 0x00000001,
     uint32 = 0x00000002,
 };
 
 pub const LoadOp = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     clear = 0x00000001,
     load = 0x00000002,
 };
@@ -274,7 +274,7 @@ pub const PipelineStatisticName = enum(u32) {
 };
 
 pub const PowerPreference = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     low_power = 0x00000001,
     high_performance = 0x00000002,
 };
@@ -352,18 +352,18 @@ pub const StencilOperation = enum(u32) {
 };
 
 pub const StorageTextureAccess = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     write_only = 0x00000001,
 };
 
 pub const StoreOp = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     store = 0x00000001,
     discard = 0x00000002,
 };
 
 pub const VertexFormat = enum(u32) {
-    undef = 0x00000000,
+    undefined = 0x00000000,
     uint8x2 = 0x00000001,
     uint8x4 = 0x00000002,
     sint8x2 = 0x00000003,
@@ -586,7 +586,7 @@ pub const PrimitiveState = extern struct {
 
     next_in_chain: NextInChain = .{ .generic = null },
     topology: PrimitiveTopology = .triangle_list,
-    strip_index_format: IndexFormat = .undef,
+    strip_index_format: IndexFormat = .undefined,
     front_face: FrontFace = .ccw,
     cull_mode: CullMode = .none,
 };
@@ -605,8 +605,8 @@ pub const StencilFaceState = extern struct {
 
 pub const StorageTextureBindingLayout = extern struct {
     next_in_chain: ?*const ChainedStruct = null,
-    access: StorageTextureAccess = .undef,
-    format: Texture.Format = .undef,
+    access: StorageTextureAccess = .undefined,
+    format: Texture.Format = .undefined,
     view_dimension: TextureView.Dimension = .dimension_undef,
 };