From 5094ad2e72b37b0731cc0b052c431750a787c9fd Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Fri, 15 Jul 2022 23:20:08 -0700
Subject: [PATCH] gpu: add dawn.CacheDeviceDescriptor

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 gpu/TODO-webgpu.h | 5 -----
 gpu/src/dawn.zig  | 7 +++++++
 gpu/src/main.zig  | 4 ++++
 3 files changed, 11 insertions(+), 5 deletions(-)
 create mode 100644 gpu/src/dawn.zig

diff --git a/gpu/TODO-webgpu.h b/gpu/TODO-webgpu.h
index 0bbd4fec..8573216f 100644
--- a/gpu/TODO-webgpu.h
+++ b/gpu/TODO-webgpu.h
@@ -1,8 +1,3 @@
-typedef struct WGPUDawnCacheDeviceDescriptor {
-    WGPUChainedStruct chain;
-    char const * isolationKey;
-} WGPUDawnCacheDeviceDescriptor;
-
 typedef struct WGPUDawnEncoderInternalUsageDescriptor {
     WGPUChainedStruct chain;
     use_internal_usages: bool,
diff --git a/gpu/src/dawn.zig b/gpu/src/dawn.zig
new file mode 100644
index 00000000..12a11640
--- /dev/null
+++ b/gpu/src/dawn.zig
@@ -0,0 +1,7 @@
+const ChainedStruct = @import("types.zig").ChainedStruct;
+
+pub const CacheDeviceDescriptor = struct {
+    // TODO: file an issue on Dawn: why not named nextInChain?
+    chain: ChainedStruct,
+    isolation_key: [*:0]const u8,
+};
diff --git a/gpu/src/main.zig b/gpu/src/main.zig
index a33e6f79..7cc83c3a 100644
--- a/gpu/src/main.zig
+++ b/gpu/src/main.zig
@@ -34,9 +34,12 @@ pub const SwapChain = @import("swap_chain.zig").SwapChain;
 pub const Texture = @import("texture.zig").Texture;
 pub const TextureView = @import("texture_view.zig").TextureView;
 
+pub const dawn = @import("dawn.zig");
+
 // TODO: export all types.zig
 pub const AlphaMode = @import("types.zig").AlphaMode;
 pub const ComputePassTimestampLocation = @import("types.zig").ComputePassTimestampLocation;
+pub const ChainedStruct = @import("types.zig").ChainedStruct;
 
 pub const ComputePassTimestampWrite = struct {
     query_set: QuerySet,
@@ -64,6 +67,7 @@ test {
     refAllDecls(@import("command_encoder.zig"));
     refAllDecls(@import("compute_pass_encoder.zig"));
     refAllDecls(@import("compute_pipeline.zig"));
+    refAllDecls(@import("dawn.zig"));
     refAllDecls(@import("device.zig"));
     refAllDecls(@import("external_texture.zig"));
     refAllDecls(@import("instance.zig"));