gpu: implement Device.createTexture

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

gpu/src/Device.zig

@@ -24,6 +24,7 @@ const PipelineLayout = @import("PipelineLayout.zig");
 const QuerySet = @import("QuerySet.zig");
 const RenderBundleEncoder = @import("RenderBundleEncoder.zig");
 const Sampler = @import("Sampler.zig");
+const Texture = @import("Texture.zig");
 
 const Device = @This();
 
@@ -59,8 +60,7 @@ pub const VTable = struct {
     createSampler: fn (ptr: *anyopaque, descriptor: *const Sampler.Descriptor) Sampler,
     createShaderModule: fn (ptr: *anyopaque, descriptor: *const ShaderModule.Descriptor) ShaderModule,
     nativeCreateSwapChain: fn (ptr: *anyopaque, surface: ?Surface, descriptor: *const SwapChain.Descriptor) SwapChain,
-    // createTexture: fn (ptr: *anyopaque, descriptor: *const Texture.Descriptor) Texture,
-    // WGPU_EXPORT WGPUTexture wgpuDeviceCreateTexture(WGPUDevice device, WGPUTextureDescriptor const * descriptor);
+    createTexture: fn (ptr: *anyopaque, descriptor: *const Texture.Descriptor) Texture,
     destroy: fn (ptr: *anyopaque) void,
     // TODO: should features be exposed as static slice?
     // WGPU_EXPORT size_t wgpuDeviceEnumerateFeatures(WGPUDevice device, WGPUFeature * features);
@@ -125,6 +125,10 @@ pub inline fn nativeCreateSwapChain(device: Device, surface: ?Surface, descripto
     return device.vtable.nativeCreateSwapChain(device.ptr, surface, descriptor);
 }
 
+pub inline fn createTexture(device: Device, descriptor: *const Texture.Descriptor) Texture {
+    return device.vtable.createTexture(device.ptr, descriptor);
+}
+
 pub inline fn destroy(device: Device) void {
     device.vtable.destroy(device.ptr);
 }
@@ -210,6 +214,7 @@ test {
     _ = createSampler;
     _ = createShaderModule;
     _ = nativeCreateSwapChain;
+    _ = createTexture;
     _ = destroy;
     _ = createBuffer;
     _ = createCommandEncoder;

gpu/src/NativeInstance.zig

@@ -444,6 +444,14 @@ const device_vtable = Device.VTable{
             ));
         }
     }).nativeCreateSwapChain,
+    .createTexture = (struct {
+        pub fn createTexture(ptr: *anyopaque, descriptor: *const Texture.Descriptor) Texture {
+            return wrapTexture(c.wgpuDeviceCreateTexture(
+                @ptrCast(c.WGPUDevice, ptr),
+                @ptrCast(*const c.WGPUTextureDescriptor, descriptor),
+            ));
+        }
+    }).createTexture,
     .destroy = (struct {
         pub fn destroy(ptr: *anyopaque) void {
             c.wgpuDeviceDestroy(@ptrCast(c.WGPUDevice, ptr));

gpu/src/Texture.zig

@@ -38,6 +38,7 @@ pub inline fn createView(texture: Texture, descriptor: *const TextureView.Descri
 }
 
 pub const Descriptor = struct {
+    reserved: ?*anyopaque = null,
     label: ?[*:0]const u8 = null,
     usage: Usage,
     dimension: Dimension,