gpu: add PrimitiveState

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

gpu/src/TODO

@@ -204,14 +204,6 @@ typedef struct WGPUCopyTextureForBrowserOptions {
     WGPUAlphaMode dstAlphaMode;
 } WGPUCopyTextureForBrowserOptions;
 
-typedef struct WGPUPrimitiveState {
-    WGPUChainedStruct const * nextInChain;
-    WGPUPrimitiveTopology topology;
-    WGPUIndexFormat stripIndexFormat;
-    WGPUFrontFace frontFace;
-    WGPUCullMode cullMode;
-} WGPUPrimitiveState;
-
 typedef struct WGPUSamplerBindingLayout {
     WGPUChainedStruct const * nextInChain;
     WGPUSamplerBindingType type;

gpu/src/main.zig

@@ -90,6 +90,7 @@ pub const BindGroupEntry = @import("structs.zig").BindGroupEntry;
 pub const BufferBindingLayout = @import("structs.zig").BufferBindingLayout;
 pub const CompilationMessage = @import("structs.zig").CompilationMessage;
 pub const MultisampleState = @import("structs.zig").MultisampleState;
+pub const PrimitiveState = @import("structs.zig").PrimitiveState;
 
 // Enumerations
 pub const Feature = @import("enums.zig").Feature;

gpu/src/structs.zig

@@ -4,6 +4,10 @@ const Sampler = @import("Sampler.zig");
 const TextureView = @import("TextureView.zig");
 const BufferBindingType = @import("enums.zig").BufferBindingType;
 const CompilationMessageType = @import("enums.zig").CompilationMessageType;
+const PrimitiveTopology = @import("enums.zig").PrimitiveTopology;
+const IndexFormat = @import("enums.zig").IndexFormat;
+const FrontFace = @import("enums.zig").FrontFace;
+const CullMode = @import("enums.zig").CullMode;
 
 pub const BindGroupEntry = struct {
     binding: u32,
@@ -35,8 +39,17 @@ pub const MultisampleState = struct {
     alpha_to_coverage_enabled: bool,
 };
 
+pub const PrimitiveState = struct {
+    topology: PrimitiveTopology,
+    strip_index_format: IndexFormat,
+    front_face: FrontFace,
+    cull_mode: CullMode,
+};
+
 test "syntax" {
     _ = BindGroupEntry;
     _ = BufferBindingLayout;
     _ = CompilationMessage;
+    _ = MultisampleState;
+    _ = PrimitiveState;
 }