gpu: add RequestAdapterOptions

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

gpu/TODO-webgpu.h

@@ -1,10 +1,3 @@
-pub const RequestAdapterOptions = extern struct {
-    next_in_chain: *const ChainedStruct,
-    compatible_surface: Surface = Surface.none, // nullable
-    power_preference: PowerPreference,
-    force_fallback_adapter: bool,
-};
-
 pub const SamplerBindingLayout = extern struct {
     next_in_chain: *const ChainedStruct,
     type: SamplerBindingType,

gpu/src/main.zig

@@ -43,6 +43,7 @@ pub const ChainedStruct = @import("types.zig").ChainedStruct;
 pub const LoadOp = @import("types.zig").LoadOp;
 pub const StoreOp = @import("types.zig").StoreOp;
 pub const RenderPassTimestampLocation = @import("types.zig").RenderPassTimestampLocation;
+pub const PowerPreference = @import("types.zig").PowerPreference;
 
 pub const ComputePassTimestampWrite = struct {
     query_set: QuerySet,
@@ -64,17 +65,19 @@ pub const RenderPassDepthStencilAttachment = extern struct {
     stencil_read_only: bool,
 };
 
-pub const RenderPassDescriptorMaxDrawCount = extern struct {
-    chain: ChainedStruct,
-    max_draw_count: u64,
-};
-
 pub const RenderPassTimestampWrite = extern struct {
     query_set: QuerySet,
     query_index: u32,
     location: RenderPassTimestampLocation,
 };
 
+pub const RequestAdapterOptions = extern struct {
+    next_in_chain: *const ChainedStruct,
+    compatible_surface: Surface = Surface.none, // nullable
+    power_preference: PowerPreference,
+    force_fallback_adapter: bool,
+};
+
 test {
     refAllDecls(@import("adapter.zig"));
     refAllDecls(@import("bind_group.zig"));

gpu/src/types.zig

@@ -482,6 +482,11 @@ pub const PrimitiveState = extern struct {
     cull_mode: CullMode,
 };
 
+pub const RenderPassDescriptorMaxDrawCount = extern struct {
+    chain: ChainedStruct,
+    max_draw_count: u64,
+};
+
 test "BackendType name" {
     try testing.expectEqualStrings("Vulkan", BackendType.vulkan.name());
 }