Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/blenloader/BLO_writefile.hh

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+/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+/** \file
+ * \ingroup blenloader
+ * \brief external `writefile.cc` function prototypes.
+ */
+
+#include "BLI_sys_types.h"
+
+namespace blender {
+
+struct BlendThumbnail;
+struct Main;
+struct MemFile;
+struct ReportList;
+
+/* -------------------------------------------------------------------- */
+/** \name BLO Write File API
+ *
+ * \see #BLO_read_from_file for file reading.
+ * \{ */
+
+/**
+ * Adjust paths when saving (kept unless #BlendFileWriteParams.use_save_as_copy is set).
+ */
+enum eBLO_WritePathRemap {
+  /** No path manipulation. */
+  BLO_WRITE_PATH_REMAP_NONE = 0,
+  /** Remap existing relative paths (default). */
+  BLO_WRITE_PATH_REMAP_RELATIVE = 1,
+  /** Remap paths making all paths relative to the new location. */
+  BLO_WRITE_PATH_REMAP_RELATIVE_ALL = 2,
+  /** Make all paths absolute. */
+  BLO_WRITE_PATH_REMAP_ABSOLUTE = 3,
+};
+
+/** Similar to #BlendFileReadParams. */
+struct BlendFileWriteParams {
+  eBLO_WritePathRemap remap_mode = {};
+  /** Save `.blend1`, `.blend2`... etc. */
+  uint use_save_versions : 1 = false;
+  /** On write, restore paths after editing them (see #BLO_WRITE_PATH_REMAP_RELATIVE). */
+  uint use_save_as_copy : 1 = false;
+  uint use_userdef : 1 = false;
+  /** This is writing a copy/paste buffer, not a regular blendfile. */
+  uint is_copypaste_buffer : 1 = false;
+  const BlendThumbnail *thumb = nullptr;
+};
+
+/**
+ * \return Success.
+ */
+extern bool BLO_write_file(Main *mainvar,
+                           const char *filepath,
+                           int write_flags,
+                           const BlendFileWriteParams *params,
+                           ReportList *reports);
+
+/**
+ * \return Success.
+ */
+extern bool BLO_write_file_mem(Main *mainvar, MemFile *compare, MemFile *current, int write_flags);
+
+using BLO_WriteFileCallback = bool (*)(const void *data, size_t size, void *user_data);
+
+/**
+ * Write a regular, non-undo blend file through a caller-provided byte sink.
+ *
+ * This keeps the same ID filtering and serialization semantics as #BLO_write_file without
+ * requiring a temporary filesystem path.
+ *
+ * \return Success.
+ */
+extern bool BLO_write_file_to_callback(Main *mainvar,
+                                       int write_flags,
+                                       BLO_WriteFileCallback callback,
+                                       void *user_data);
+
+/** \} */
+
+}  // namespace blender