Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/gpu/GPU_compute.hh

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+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup gpu
+ *
+ * GPU Compute Pipeline
+ *
+ * Allows to dispatch compute shader tasks on the GPU.
+ * Every dispatch is sent to the active `GPUContext`.
+ */
+
+#pragma once
+
+#include "BLI_sys_types.h"
+
+#include "GPU_shader.hh"
+#include "GPU_storage_buffer.hh"
+
+namespace blender {
+
+/**
+ * Dispatch a compute shader task.
+ * The number of work groups (aka thread groups) is bounded by `GPU_max_work_group_count()` which
+ * might be different in each of the 3 dimensions.
+ */
+void GPU_compute_dispatch(gpu::Shader *shader,
+                          uint groups_x_len,
+                          uint groups_y_len,
+                          uint groups_z_len,
+                          const gpu::shader::SpecializationConstants *constants_state = nullptr);
+
+/**
+ * Dispatch a compute shader task. The size of the dispatch is sourced from a \a indirect_buf
+ * which must follow this layout:
+ * \code{.c}
+ * struct DispatchIndirectCommand {
+ *   uint groups_x_len;
+ *   uint groups_y_len;
+ *   uint groups_z_len;
+ * };
+ * \encode
+ *
+ * \note The writes to the \a indirect_buf do not need to be synchronized as a memory barrier is
+ * emitted internally.
+ *
+ * The number of work groups (aka thread groups) is bounded by `GPU_max_work_group_count()` which
+ * might be different in each of the 3 dimensions.
+ */
+void GPU_compute_dispatch_indirect(
+    gpu::Shader *shader,
+    gpu::StorageBuf *indirect_buf,
+    const gpu::shader::SpecializationConstants *constants_state = nullptr);
+
+}  // namespace blender