From 9c7aa55273e4e5e9dac98a3ce15b4d97a18cb270 Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Fri, 11 Mar 2022 20:29:32 -0700
Subject: [PATCH] gpu: implement Device.createCommandEncoder

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 gpu/src/Device.zig         | 7 ++++++-
 gpu/src/NativeInstance.zig | 9 +++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/gpu/src/Device.zig b/gpu/src/Device.zig
index f59ad84d..70471616 100644
--- a/gpu/src/Device.zig
+++ b/gpu/src/Device.zig
@@ -13,6 +13,7 @@ const ShaderModule = @import("ShaderModule.zig");
 const Surface = @import("Surface.zig");
 const SwapChain = @import("SwapChain.zig");
 const RenderPipeline = @import("RenderPipeline.zig");
+const CommandEncoder = @import("CommandEncoder.zig");
 
 const Device = @This();
 
@@ -26,7 +27,7 @@ pub const VTable = struct {
     // WGPU_EXPORT WGPUBindGroup wgpuDeviceCreateBindGroup(WGPUDevice device, WGPUBindGroupDescriptor const * descriptor);
     // WGPU_EXPORT WGPUBindGroupLayout wgpuDeviceCreateBindGroupLayout(WGPUDevice device, WGPUBindGroupLayoutDescriptor const * descriptor);
     // WGPU_EXPORT WGPUBuffer wgpuDeviceCreateBuffer(WGPUDevice device, WGPUBufferDescriptor const * descriptor);
-    // WGPU_EXPORT WGPUCommandEncoder wgpuDeviceCreateCommandEncoder(WGPUDevice device, WGPUCommandEncoderDescriptor const * descriptor);
+    createCommandEncoder: fn (ptr: *anyopaque, descriptor: *const CommandEncoder.Descriptor) CommandEncoder,
     // WGPU_EXPORT WGPUComputePipeline wgpuDeviceCreateComputePipeline(WGPUDevice device, WGPUComputePipelineDescriptor const * descriptor);
     // WGPU_EXPORT void wgpuDeviceCreateComputePipelineAsync(WGPUDevice device, WGPUComputePipelineDescriptor const * descriptor, WGPUCreateComputePipelineAsyncCallback callback, void * userdata);
     // WGPU_EXPORT WGPUBuffer wgpuDeviceCreateErrorBuffer(WGPUDevice device);
@@ -82,6 +83,10 @@ pub inline fn destroy(device: Device) void {
     device.vtable.destroy(device.ptr);
 }
 
+pub inline fn createCommandEncoder(device: Device, descriptor: *const CommandEncoder.Descriptor) CommandEncoder {
+    return device.vtable.createCommandEncoder(device.ptr, descriptor);
+}
+
 pub inline fn createRenderPipeline(device: Device, descriptor: *const RenderPipeline.Descriptor) RenderPipeline {
     return device.vtable.createRenderPipeline(device.ptr, descriptor);
 }
diff --git a/gpu/src/NativeInstance.zig b/gpu/src/NativeInstance.zig
index ad02d1a5..113caf12 100644
--- a/gpu/src/NativeInstance.zig
+++ b/gpu/src/NativeInstance.zig
@@ -378,6 +378,15 @@ const device_vtable = Device.VTable{
             c.wgpuDeviceDestroy(@ptrCast(c.WGPUDevice, ptr));
         }
     }).destroy,
+    .createCommandEncoder = (struct {
+        pub fn createCommandEncoder(ptr: *anyopaque, descriptor: *const CommandEncoder.Descriptor) CommandEncoder {
+            const desc = c.WGPUCommandEncoderDescriptor{
+                .nextInChain = null,
+                .label = descriptor.label,
+            };
+            return wrapCommandEncoder(c.wgpuDeviceCreateCommandEncoder(@ptrCast(c.WGPUDevice, ptr), &desc));
+        }
+    }).createCommandEncoder,
     .createRenderPipeline = (struct {
         pub fn createRenderPipeline(ptr: *anyopaque, descriptor: *const RenderPipeline.Descriptor) RenderPipeline {
             var tmp_depth_stencil: c.WGPUDepthStencilState = undefined;