From 3ec84f516a66ddcb52ec2ee316259890d4f970cc Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Fri, 11 Mar 2022 16:21:09 -0700
Subject: [PATCH] gpu: add DepthStencilState

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 gpu/src/TODO        | 14 --------------
 gpu/src/main.zig    |  3 ++-
 gpu/src/structs.zig | 16 ++++++++++++++++
 3 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/gpu/src/TODO b/gpu/src/TODO
index 1bbe7a0f..3ad0dce8 100644
--- a/gpu/src/TODO
+++ b/gpu/src/TODO
@@ -204,20 +204,6 @@ typedef struct WGPUCopyTextureForBrowserOptions {
     WGPUAlphaMode dstAlphaMode;
 } WGPUCopyTextureForBrowserOptions;
 
-typedef struct WGPUDepthStencilState {
-    WGPUChainedStruct const * nextInChain;
-    WGPUTextureFormat format;
-    bool depthWriteEnabled;
-    WGPUCompareFunction depthCompare;
-    WGPUStencilFaceState stencilFront;
-    WGPUStencilFaceState stencilBack;
-    uint32_t stencilReadMask;
-    uint32_t stencilWriteMask;
-    int32_t depthBias;
-    float depthBiasSlopeScale;
-    float depthBiasClamp;
-} WGPUDepthStencilState;
-
 typedef struct WGPUImageCopyBuffer {
     WGPUChainedStruct const * nextInChain;
     WGPUTextureDataLayout layout;
diff --git a/gpu/src/main.zig b/gpu/src/main.zig
index 5b1df2a8..f3e3bb78 100644
--- a/gpu/src/main.zig
+++ b/gpu/src/main.zig
@@ -89,10 +89,11 @@ pub const VertexBufferLayout = @import("data.zig").VertexBufferLayout;
 
 // Data structures not ABI-compatible with webgpu.h
 pub const CompilationMessage = @import("structs.zig").CompilationMessage;
-pub const CompilationInfo = @Import("structs.zig").CompilationInfo;
+pub const CompilationInfo = @import("structs.zig").CompilationInfo;
 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;
 
 // Enumerations
 pub const Feature = @import("enums.zig").Feature;
diff --git a/gpu/src/structs.zig b/gpu/src/structs.zig
index 378f9f05..9926b56c 100644
--- a/gpu/src/structs.zig
+++ b/gpu/src/structs.zig
@@ -3,12 +3,14 @@ const Buffer = @import("Buffer.zig");
 const Sampler = @import("Sampler.zig");
 const Texture = @import("Texture.zig");
 const TextureView = @import("TextureView.zig");
+const StencilFaceState = @import("data.zig").StencilFaceState;
 const CompilationMessageType = @import("enums.zig").CompilationMessageType;
 const PrimitiveTopology = @import("enums.zig").PrimitiveTopology;
 const IndexFormat = @import("enums.zig").IndexFormat;
 const FrontFace = @import("enums.zig").FrontFace;
 const CullMode = @import("enums.zig").CullMode;
 const StorageTextureAccess = @import("enums.zig").StorageTextureAccess;
+const CompareFunction = @import("enums.zig").CompareFunction;
 
 pub const CompilationMessage = struct {
     message: [:0]const u8,
@@ -42,10 +44,24 @@ pub const StorageTextureBindingLayout = struct {
     view_dimension: Texture.ViewDimension,
 };
 
+pub const DepthStencilState = struct {
+    format: Texture.Format,
+    depth_write_enabled: bool,
+    depth_compare: CompareFunction,
+    stencil_front: StencilFaceState,
+    stencil_back: StencilFaceState,
+    stencil_read_mask: u32,
+    stencil_write_mask: u32,
+    depth_bias: i32,
+    depth_bias_slope_scale: f32,
+    depth_bias_clamp: f32,
+};
+
 test "syntax" {
     _ = CompilationMessage;
     _ = CompilationInfo;
     _ = MultisampleState;
     _ = PrimitiveState;
     _ = StorageTextureBindingLayout;
+    _ = DepthStencilState;
 }