Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 95 insertions, 0 deletions

diff --git a/image/ImageMemoryReporter.h b/image/ImageMemoryReporter.h
new file mode 100644
index 0000000000..ab7d55c46d
--- /dev/null
+++ b/image/ImageMemoryReporter.h
@@ -0,0 +1,95 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 mozilla_image_ImageMemoryReporter_h
+#define mozilla_image_ImageMemoryReporter_h
+
+#include <cstdint>
+#include "nsString.h"
+#include "mozilla/layers/SharedSurfacesMemoryReport.h"
+
+class nsISupports;
+class nsIHandleReportCallback;
+
+namespace mozilla {
+namespace image {
+struct ImageMemoryCounter;
+struct SurfaceMemoryCounter;
+
+class ImageMemoryReporter final {
+ public:
+  /**
+   * Initializes image related memory reporting in the compositor process when
+   * using WebRender.
+   */
+  static void InitForWebRender();
+
+  /**
+   * Tears down image related memory reporting in the compositor process when
+   * using WebRender.
+   */
+  static void ShutdownForWebRender();
+
+  /**
+   * Report all remaining entries in the shared surface's memory report. This
+   * should be used by the content or main process to allow reporting any
+   * entries that is was unable to cross reference with the local surface cache.
+   * These are candidates for having been leaked. This should be used in
+   * conjunction with AppendSharedSurfacePrefix and/or TrimSharedSurfaces to
+   * produce the expected result.
+   */
+  static void ReportSharedSurfaces(
+      nsIHandleReportCallback* aHandleReport, nsISupports* aData,
+      const layers::SharedSurfacesMemoryReport& aSharedSurfaces);
+
+  /**
+   * Adjust the path prefix for a surface to include any additional metadata for
+   * the shared surface, if any. It will also remove any corresponding entries
+   * in the given memory report.
+   */
+  static void AppendSharedSurfacePrefix(
+      nsACString& aPathPrefix, const SurfaceMemoryCounter& aCounter,
+      layers::SharedSurfacesMemoryReport& aSharedSurfaces);
+
+  /**
+   * Remove all entries in the memory report for the given set of surfaces for
+   * an image. This is useful when we aren't reporting on a particular image
+   * because it isn't notable.
+   */
+  static void TrimSharedSurfaces(
+      const ImageMemoryCounter& aCounter,
+      layers::SharedSurfacesMemoryReport& aSharedSurfaces);
+
+ private:
+  /**
+   * Report all remaining entries in the shared surface's memory report.
+   *
+   * aIsForCompositor controls how to interpret what remains in the report. If
+   * true, this should mirror exactly what is currently in
+   * SharedSurfacesParent's cache. This will report entries that are currently
+   * mapped into the compositor process. If false, then we are in a content or
+   * main process, and it should have removed entries that also exist in its
+   * local surface cache -- thus any remaining entries are those that are
+   * candidates for leaks.
+   */
+  static void ReportSharedSurfaces(
+      nsIHandleReportCallback* aHandleReport, nsISupports* aData,
+      bool aIsForCompositor,
+      const layers::SharedSurfacesMemoryReport& aSharedSurfaces);
+
+  static void ReportSharedSurface(
+      nsIHandleReportCallback* aHandleReport, nsISupports* aData,
+      bool aIsForCompositor, uint64_t aExternalId,
+      const layers::SharedSurfacesMemoryReport::SurfaceEntry& aEntry);
+
+  class WebRenderReporter;
+  static WebRenderReporter* sWrReporter;
+};
+
+}  // namespace image
+}  // namespace mozilla
+
+#endif  // mozilla_image_ImageMemoryReporter_h