layout/painting/MaskLayerImageCache.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 "MaskLayerImageCache.h"
   8
   9 #include "ImageContainer.h"
  10 #include "mozilla/layers/KnowsCompositor.h"
  11
  12 using namespace mozilla::layers;
  13
  14 namespace mozilla {
  15
  16 MaskLayerImageCache::MaskLayerImageCache() {
  17   MOZ_COUNT_CTOR(MaskLayerImageCache);
  18 }
  19 MaskLayerImageCache::~MaskLayerImageCache() {
  20   MOZ_COUNT_DTOR(MaskLayerImageCache);
  21 }
  22
  23 void MaskLayerImageCache::Sweep() {
  24   for (auto iter = mMaskImageContainers.Iter(); !iter.Done(); iter.Next()) {
  25     const auto& key = iter.Get()->mKey;
  26     if (key->HasZeroLayerCount()) {
  27       iter.Remove();
  28     }
  29   }
  30 }
  31
  32 ImageContainer* MaskLayerImageCache::FindImageFor(
  33     const MaskLayerImageKey** aKey) {
  34   if (MaskLayerImageEntry* entry = mMaskImageContainers.GetEntry(**aKey)) {
  35     *aKey = entry->mKey.get();
  36     return entry->mContainer;
  37   }
  38
  39   return nullptr;
  40 }
  41
  42 void MaskLayerImageCache::PutImage(const MaskLayerImageKey* aKey,
  43                                    ImageContainer* aContainer) {
  44   MaskLayerImageEntry* entry = mMaskImageContainers.PutEntry(*aKey);
  45   entry->mContainer = aContainer;
  46 }
  47
  48 MaskLayerImageCache::MaskLayerImageKey::MaskLayerImageKey()
  49     : mRoundedClipRects(), mLayerCount(0) {
  50   MOZ_COUNT_CTOR(MaskLayerImageKey);
  51 }
  52
  53 MaskLayerImageCache::MaskLayerImageKey::MaskLayerImageKey(
  54     const MaskLayerImageKey& aKey)
  55     : mRoundedClipRects(aKey.mRoundedClipRects.Clone()),
  56       mLayerCount(aKey.mLayerCount) {
  57   MOZ_COUNT_CTOR(MaskLayerImageKey);
  58 }
  59
  60 MaskLayerImageCache::MaskLayerImageKey::~MaskLayerImageKey() {
  61   MOZ_COUNT_DTOR(MaskLayerImageKey);
  62 }
  63
  64 }  // namespace mozilla