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/* -*- 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
#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