gpu: add ProgrammableStageDescriptor

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

gpu/src/TODO

@@ -57,14 +57,6 @@ typedef struct WGPUDawnTogglesDeviceDescriptor {
 
 
 
-typedef struct WGPUProgrammableStageDescriptor {
-    WGPUChainedStruct const * nextInChain;
-    WGPUShaderModule module;
-    char const * entryPoint;
-    uint32_t constantCount;
-    WGPUConstantEntry const * constants;
-} WGPUProgrammableStageDescriptor;
-
 typedef struct WGPUTextureDescriptor {
     WGPUChainedStruct const * nextInChain;
     char const * label;

gpu/src/main.zig

@@ -94,6 +94,7 @@ pub const MultisampleState = @import("structs.zig").MultisampleState;
 pub const PrimitiveState = @import("structs.zig").PrimitiveState;
 pub const StorageTextureBindingLayout = @import("structs.zig").StorageTextureBindingLayout;
 pub const DepthStencilState = @import("structs.zig").DepthStencilState;
+pub const ProgrammableStageDescriptor = @import("structs.zig").ProgrammableStageDescriptor;
 
 // Enumerations
 pub const Feature = @import("enums.zig").Feature;

gpu/src/structs.zig

@@ -57,6 +57,13 @@ pub const DepthStencilState = struct {
     depth_bias_clamp: f32,
 };
 
+pub const ProgrammableStageDescriptor = struct {
+    label: ?[*:0]const u8 = null,
+    module: ShaderModule,
+    entryPoint: [*:0]const u8,
+    constants: []const ConstantEntry,
+};
+
 test "syntax" {
     _ = CompilationMessage;
     _ = CompilationInfo;
@@ -64,4 +71,5 @@ test "syntax" {
     _ = PrimitiveState;
     _ = StorageTextureBindingLayout;
     _ = DepthStencilState;
+    _ = ProgrammableStageDescriptor;
 }