1 files changed, 104 insertions, 0 deletions
diff --git a/dom/webgpu/RenderPassEncoder.h b/dom/webgpu/RenderPassEncoder.h
new file mode 100644
index 0000000000..0255003b22
--- /dev/null
+++ b/dom/webgpu/RenderPassEncoder.h
@@ -0,0 +1,104 @@
+/* -*- 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 {
+class ErrorResult;
+
+namespace dom {
+class DoubleSequenceOrGPUColorDict;
+struct GPURenderPassDescriptor;
+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 BindGroup;
+class Buffer;
+class CommandEncoder;
+class RenderBundle;
+class RenderPipeline;
+class TextureView;
+
+struct ScopedFfiRenderTraits {
+  using type = ffi::WGPURenderPass*;
+  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;
+  nsTArray<RefPtr<const RenderBundle>> mUsedRenderBundles;
+
+ public:
+  // programmable pass encoder
+  void SetBindGroup(uint32_t aSlot, const BindGroup& aBindGroup,
+                    const dom::Sequence<uint32_t>& aDynamicOffsets);
+  // render encoder base
+  void SetPipeline(const RenderPipeline& aPipeline);
+  void SetIndexBuffer(const Buffer& aBuffer,
+                      const dom::GPUIndexFormat& aIndexFormat, 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);
+  // self
+  void SetViewport(float x, float y, float width, float height, float minDepth,
+                   float maxDepth);
+  void SetScissorRect(uint32_t x, uint32_t y, uint32_t width, uint32_t height);
+  void SetBlendConstant(const dom::DoubleSequenceOrGPUColorDict& color);
+  void SetStencilReference(uint32_t reference);
+
+  void PushDebugGroup(const nsAString& aString);
+  void PopDebugGroup();
+  void InsertDebugMarker(const nsAString& aString);
+
+  void ExecuteBundles(
+      const dom::Sequence<OwningNonNull<RenderBundle>>& aBundles);
+
+  void End(ErrorResult& aRv);
+};
+
+}  // namespace webgpu
+}  // namespace mozilla
+
+#endif  // GPU_RenderPassEncoder_H_