From 9e3c08db40b8916968b9f30096c7be3f00ce9647 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:44:51 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- gfx/2d/NativeFontResource.cpp | 52 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 gfx/2d/NativeFontResource.cpp (limited to 'gfx/2d/NativeFontResource.cpp') diff --git a/gfx/2d/NativeFontResource.cpp b/gfx/2d/NativeFontResource.cpp new file mode 100644 index 0000000000..1c6a9fe0af --- /dev/null +++ b/gfx/2d/NativeFontResource.cpp @@ -0,0 +1,52 @@ +/* -*- 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/. */ + +#include "2D.h" +#include "nsIMemoryReporter.h" + +namespace mozilla { +namespace gfx { + +static Atomic gTotalNativeFontResourceData; + +NativeFontResource::NativeFontResource(size_t aDataLength) + : mDataLength(aDataLength) { + gTotalNativeFontResourceData += mDataLength; +} + +NativeFontResource::~NativeFontResource() { + gTotalNativeFontResourceData -= mDataLength; +} + +// Memory reporter that estimates the amount of memory that is currently being +// allocated internally by various native font APIs for native font resources. +// The sanest way to do this, given that NativeFontResources can be created and +// used in many different threads or processes and given that such memory is +// implicitly allocated by the native APIs, is just to maintain a global atomic +// counter and report this value as such. +class NativeFontResourceDataMemoryReporter final : public nsIMemoryReporter { + ~NativeFontResourceDataMemoryReporter() = default; + + public: + NS_DECL_ISUPPORTS + + NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport, + nsISupports* aData, bool aAnonymize) override { + MOZ_COLLECT_REPORT("explicit/gfx/native-font-resource-data", KIND_HEAP, + UNITS_BYTES, gTotalNativeFontResourceData, + "Total memory used by native font API resource data."); + return NS_OK; + } +}; + +NS_IMPL_ISUPPORTS(NativeFontResourceDataMemoryReporter, nsIMemoryReporter) + +void NativeFontResource::RegisterMemoryReporter() { + RegisterStrongMemoryReporter(new NativeFontResourceDataMemoryReporter); +} + +} // namespace gfx +} // namespace mozilla -- cgit v1.2.3