1 files changed, 79 insertions, 0 deletions
diff --git a/dom/webgpu/RenderPassEncoder.h b/dom/webgpu/RenderPassEncoder.h
new file mode 100644
index 0000000000..93e04d0b79
--- /dev/null
+++ b/dom/webgpu/RenderPassEncoder.h
@@ -0,0 +1,79 @@
+/* -*- 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_RenderPassEncoder_H_
+#define GPU_RenderPassEncoder_H_
+
+#include "mozilla/Scoped.h"
+#include "mozilla/dom/TypedArray.h"
+#include "ObjectModel.h"
+
+namespace mozilla {
+namespace dom {
+class DoubleSequenceOrGPUColorDict;
+template <typename T>
+class Sequence;
+namespace binding_detail {
+template <typename T>
+class AutoSequence;
+}  // namespace binding_detail
+}  // namespace dom
+namespace webgpu {
+namespace ffi {
+struct WGPURenderPass;
+}  // namespace ffi
+
+class CommandEncoder;
+class RenderBundle;
+class RenderPipeline;
+
+struct ScopedFfiRenderTraits {
+  typedef ffi::WGPURenderPass* type;
+  static type empty();
+  static void release(type raw);
+};
+
+class RenderPassEncoder final : public ObjectBase,
+                                public ChildOf<CommandEncoder> {
+ public:
+  GPU_DECL_CYCLE_COLLECTION(RenderPassEncoder)
+  GPU_DECL_JS_WRAP(RenderPassEncoder)
+
+  RenderPassEncoder(CommandEncoder* const aParent,
+                    const dom::GPURenderPassDescriptor& aDesc);
+
+ protected:
+  virtual ~RenderPassEncoder();
+  void Cleanup() {}
+
+  Scoped<ScopedFfiRenderTraits> mPass;
+  // keep all the used objects alive while the pass is recorded
+  nsTArray<RefPtr<const BindGroup>> mUsedBindGroups;
+  nsTArray<RefPtr<const Buffer>> mUsedBuffers;
+  nsTArray<RefPtr<const RenderPipeline>> mUsedPipelines;
+  nsTArray<RefPtr<const TextureView>> mUsedTextureViews;
+
+ public:
+  void SetBindGroup(uint32_t aSlot, const BindGroup& aBindGroup,
+                    const dom::Sequence<uint32_t>& aDynamicOffsets);
+  void SetPipeline(const RenderPipeline& aPipeline);
+  void SetIndexBuffer(const Buffer& aBuffer, uint64_t aOffset, uint64_t aSize);
+  void SetVertexBuffer(uint32_t aSlot, const Buffer& aBuffer, uint64_t aOffset,
+                       uint64_t aSize);
+  void Draw(uint32_t aVertexCount, uint32_t aInstanceCount,
+            uint32_t aFirstVertex, uint32_t aFirstInstance);
+  void DrawIndexed(uint32_t aIndexCount, uint32_t aInstanceCount,
+                   uint32_t aFirstIndex, int32_t aBaseVertex,
+                   uint32_t aFirstInstance);
+  void DrawIndirect(const Buffer& aIndirectBuffer, uint64_t aIndirectOffset);
+  void DrawIndexedIndirect(const Buffer& aIndirectBuffer,
+                           uint64_t aIndirectOffset);
+  void EndPass(ErrorResult& aRv);
+};
+
+}  // namespace webgpu
+}  // namespace mozilla
+
+#endif  // GPU_RenderPassEncoder_H_