gfx/gl/GfxTexturesReporter.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include <string>
   8 #include <sstream>
   9 #include "nsExceptionHandler.h"
  10 #include "GfxTexturesReporter.h"
  11 #include "mozilla/StaticPrefs_gfx.h"
  12
  13 using namespace mozilla::gl;
  14
  15 NS_IMPL_ISUPPORTS(GfxTexturesReporter, nsIMemoryReporter)
  16
  17 mozilla::Atomic<size_t> GfxTexturesReporter::sAmount(0);
  18 mozilla::Atomic<size_t> GfxTexturesReporter::sPeakAmount(0);
  19 mozilla::Atomic<size_t> GfxTexturesReporter::sTileWasteAmount(0);
  20
  21 static std::string FormatBytes(size_t amount) {
  22   std::stringstream stream;
  23   int depth = 0;
  24   double val = amount;
  25   while (val > 1024) {
  26     val /= 1024;
  27     depth++;
  28   }
  29
  30   const char* unit;
  31   switch (depth) {
  32     case 0:
  33       unit = "bytes";
  34       break;
  35     case 1:
  36       unit = "KB";
  37       break;
  38     case 2:
  39       unit = "MB";
  40       break;
  41     case 3:
  42       unit = "GB";
  43       break;
  44     default:
  45       unit = "";
  46       break;
  47   }
  48
  49   stream << val << " " << unit;
  50   return stream.str();
  51 }
  52
  53 /* static */
  54 void GfxTexturesReporter::UpdateAmount(MemoryUse action, size_t amount) {
  55   if (action == MemoryFreed) {
  56     MOZ_RELEASE_ASSERT(
  57         amount <= sAmount,
  58         "GFX: Current texture usage greater than update amount.");
  59     sAmount -= amount;
  60
  61     if (StaticPrefs::gfx_logging_texture_usage_enabled_AtStartup()) {
  62       printf_stderr("Current texture usage: %s\n",
  63                     FormatBytes(sAmount).c_str());
  64     }
  65   } else {
  66     sAmount += amount;
  67     if (sAmount > sPeakAmount) {
  68       sPeakAmount.exchange(sAmount);
  69       if (StaticPrefs::gfx_logging_peak_texture_usage_enabled_AtStartup()) {
  70         printf_stderr("Peak texture usage: %s\n",
  71                       FormatBytes(sPeakAmount).c_str());
  72       }
  73     }
  74   }
  75
  76   CrashReporter::AnnotateTexturesSize(sAmount);
  77 }