gpu: add Device.createShaderModuleWGSL helper

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

gpu/README.md

@@ -238,4 +238,6 @@ const descriptor = gpu.Surface.Descriptor{
 
 ### Others
 
+* `Device.createShaderModuleWGSL` (helper to create WGSL shader modules more nicely)
+
 There may be other opportunities for helpers, to improve the existing APIs, or add utility APIs on top of the existing APIs. If you find one, please open an issue we'd love to consider it.

gpu/examples/main.zig

@@ -49,24 +49,14 @@ pub fn main() !void {
         \\     return vec4<f32>(pos[VertexIndex], 0.0, 1.0);
         \\ }
     ;
-    const vs_module = setup.device.createShaderModule(&.{
-        .next_in_chain = .{ .wgsl_descriptor = &.{
-            .source = vs,
-        } },
-        .label = "my vertex shader",
-    });
+    const vs_module = setup.device.createShaderModuleWGSL("my vertex shader", vs);
 
     const fs =
         \\ @fragment fn main() -> @location(0) vec4<f32> {
         \\     return vec4<f32>(1.0, 0.0, 0.0, 1.0);
         \\ }
     ;
-    const fs_module = setup.device.createShaderModule(&.{
-        .next_in_chain = .{ .wgsl_descriptor = &.{
-            .source = fs,
-        } },
-        .label = "my fragment shader",
-    });
+    const fs_module = setup.device.createShaderModuleWGSL("my fragment shader", fs);
 
     // Fragment state
     const blend = gpu.BlendState{

gpu/src/device.zig

@@ -194,6 +194,20 @@ pub const Device = opaque {
         return Impl.deviceCreateShaderModule(device, descriptor);
     }
 
+    /// Helper to make createShaderModule invocations slightly nicer.
+    pub inline fn createShaderModuleWGSL(
+        device: *Device,
+        label: ?[*:0]const u8,
+        wgsl_source: [*:0]const u8,
+    ) *ShaderModule {
+        return device.createShaderModule(&ShaderModule.Descriptor{
+            .next_in_chain = .{ .wgsl_descriptor = &.{
+                .source = wgsl_source,
+            } },
+            .label = label,
+        });
+    }
+
     pub inline fn createSwapChain(device: *Device, surface: ?*Surface, descriptor: *const SwapChain.Descriptor) *SwapChain {
         return Impl.deviceCreateSwapChain(device, surface, descriptor);
     }