gpu: add PipelineLayout.Descriptor

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

gpu/src/ExternalTexture.zig

@@ -1,3 +1,6 @@
+const Texture = @import("Texture.zig");
+const PredefinedColorSpace = @import("enums.zig").PredefinedColorSpace;
+
 const ExternalTexture = @This();
 
 /// The type erased pointer to the ExternalTexture implementation
@@ -28,9 +31,17 @@ pub inline fn destroy(texture: ExternalTexture) void {
     texture.vtable.destroy(texture.ptr);
 }
 
+pub const Descriptor = struct {
+    label: ?[*:0]const u8 = null,
+    plane0: Texture.View,
+    plane1: Texture.View,
+    color_space: PredefinedColorSpace,
+};
+
 test "syntax" {
     _ = VTable;
     _ = reference;
     _ = release;
     _ = destroy;
+    _ = Descriptor;
 }

gpu/src/PipelineLayout.zig

@@ -1,3 +1,5 @@
+const BindGroup = @import("BindGroup.zig");
+
 const PipelineLayout = @This();
 
 /// The type erased pointer to the PipelineLayout implementation
@@ -23,8 +25,14 @@ pub inline fn setLabel(qset: PipelineLayout, label: [:0]const u8) void {
     qset.vtable.setLabel(qset.ptr, label);
 }
 
+pub const Descriptor = struct {
+    label: ?[*:0]const u8 = null,
+    bind_group_layouts: []const BindGroup.Layout,
+};
+
 test "syntax" {
     _ = VTable;
     _ = reference;
     _ = release;
+    _ = Descriptor;
 }

gpu/src/TODO

@@ -21,28 +21,32 @@ typedef struct WGPUChainedStructOut {
 
 
 
-
+// TODO: Dawn specific
 typedef struct WGPUDawnCacheDeviceDescriptor {
     WGPUChainedStruct chain;
     char const * isolationKey;
 } WGPUDawnCacheDeviceDescriptor;
 
+// TODO: Dawn specific
 typedef struct WGPUDawnEncoderInternalUsageDescriptor {
     WGPUChainedStruct chain;
     bool useInternalUsages;
 } WGPUDawnEncoderInternalUsageDescriptor;
 
+// TODO: Dawn specific
 typedef struct WGPUDawnInstanceDescriptor {
     WGPUChainedStruct chain;
     uint32_t additionalRuntimeSearchPathsCount;
     const char* const * additionalRuntimeSearchPaths;
 } WGPUDawnInstanceDescriptor;
 
+// TODO: Dawn specific
 typedef struct WGPUDawnTextureInternalUsageDescriptor {
     WGPUChainedStruct chain;
     WGPUTextureUsageFlags internalUsage;
 } WGPUDawnTextureInternalUsageDescriptor;
 
+// TODO: Dawn specific
 typedef struct WGPUDawnTogglesDeviceDescriptor {
     WGPUChainedStruct chain;
     uint32_t forceEnabledTogglesCount;
@@ -51,20 +55,7 @@ typedef struct WGPUDawnTogglesDeviceDescriptor {
     const char* const * forceDisabledToggles;
 } WGPUDawnTogglesDeviceDescriptor;
 
-typedef struct WGPUExternalTextureDescriptor {
-    WGPUChainedStruct const * nextInChain;
-    char const * label;
-    WGPUTextureView plane0;
-    WGPUTextureView plane1;
-    WGPUPredefinedColorSpace colorSpace;
-} WGPUExternalTextureDescriptor;
 
-typedef struct WGPUPipelineLayoutDescriptor {
-    WGPUChainedStruct const * nextInChain;
-    char const * label;
-    uint32_t bindGroupLayoutCount;
-    WGPUBindGroupLayout const * bindGroupLayouts;
-} WGPUPipelineLayoutDescriptor;
 
 typedef struct WGPUQuerySetDescriptor {
     WGPUChainedStruct const * nextInChain;