skia/ext/skia_memory_dump_provider.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "skia_memory_dump_provider.h"
   6
   7 #include "base/trace_event/memory_allocator_dump.h"
   8 #include "base/trace_event/memory_dump_manager.h"
   9 #include "base/trace_event/process_memory_dump.h"
  10 #include "third_party/skia/include/core/SkGraphics.h"
  11 #include "third_party/skia/src/core/SkResourceCache.h"
  12
  13 namespace skia {
  14
  15 // static
  16 SkiaMemoryDumpProvider* SkiaMemoryDumpProvider::GetInstance() {
  17   return Singleton<SkiaMemoryDumpProvider,
  18                    LeakySingletonTraits<SkiaMemoryDumpProvider>>::get();
  19 }
  20
  21 SkiaMemoryDumpProvider::SkiaMemoryDumpProvider() {}
  22
  23 SkiaMemoryDumpProvider::~SkiaMemoryDumpProvider() {}
  24
  25 bool SkiaMemoryDumpProvider::OnMemoryDump(
  26     const base::trace_event::MemoryDumpArgs& args,
  27     base::trace_event::ProcessMemoryDump* process_memory_dump) {
  28   auto font_mad =
  29       process_memory_dump->CreateAllocatorDump("skia/sk_font_cache");
  30   font_mad->AddScalar("size", "bytes", SkGraphics::GetFontCacheUsed());
  31   font_mad->AddScalar("count", "objects", SkGraphics::GetFontCacheCountUsed());
  32
  33   auto resource_mad =
  34       process_memory_dump->CreateAllocatorDump("skia/sk_resource_cache");
  35   resource_mad->AddScalar("size", "bytes",
  36                           SkResourceCache::GetTotalBytesUsed());
  37   // TODO(ssid): crbug.com/503168. Add sub-allocation edges from discardable or
  38   // malloc memory dumps to avoid double counting.
  39
  40   return true;
  41 }
  42
  43 }  // namespace skia