1 files changed, 61 insertions, 0 deletions
diff --git a/dom/webgpu/ComputePassEncoder.h b/dom/webgpu/ComputePassEncoder.h
new file mode 100644
index 0000000000..04828620de
--- /dev/null
+++ b/dom/webgpu/ComputePassEncoder.h
@@ -0,0 +1,61 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GPU_ComputePassEncoder_H_
+#define GPU_ComputePassEncoder_H_
+
+#include "mozilla/Scoped.h"
+#include "mozilla/dom/TypedArray.h"
+#include "ObjectModel.h"
+
+namespace mozilla {
+namespace webgpu {
+namespace ffi {
+struct WGPUComputePass;
+}  // namespace ffi
+
+class BindGroup;
+class Buffer;
+class CommandEncoder;
+class ComputePipeline;
+
+struct ScopedFfiComputeTraits {
+  typedef ffi::WGPUComputePass* type;
+  static type empty();
+  static void release(type raw);
+};
+
+class ComputePassEncoder final : public ObjectBase,
+                                 public ChildOf<CommandEncoder> {
+ public:
+  GPU_DECL_CYCLE_COLLECTION(ComputePassEncoder)
+  GPU_DECL_JS_WRAP(ComputePassEncoder)
+
+  ComputePassEncoder(CommandEncoder* const aParent,
+                     const dom::GPUComputePassDescriptor& aDesc);
+
+ private:
+  virtual ~ComputePassEncoder();
+  void Cleanup() {}
+
+  Scoped<ScopedFfiComputeTraits> mPass;
+  // keep all the used objects alive while the pass is recorded
+  nsTArray<RefPtr<const BindGroup>> mUsedBindGroups;
+  nsTArray<RefPtr<const ComputePipeline>> mUsedPipelines;
+
+ public:
+  void SetBindGroup(uint32_t aSlot, const BindGroup& aBindGroup,
+                    const dom::Sequence<uint32_t>& aDynamicOffsets);
+  void SetPipeline(const ComputePipeline& aPipeline);
+  void Dispatch(uint32_t x, uint32_t y, uint32_t z);
+  void DispatchIndirect(const Buffer& aIndirectBuffer,
+                        uint64_t aIndirectOffset);
+  void EndPass(ErrorResult& aRv);
+};
+
+}  // namespace webgpu
+}  // namespace mozilla
+
+#endif  // GPU_ComputePassEncoder_H_