cc/playback/largest_display_item.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 "cc/playback/largest_display_item.h"
   6
   7 #include <algorithm>
   8
   9 #include "cc/playback/clip_display_item.h"
  10 #include "cc/playback/clip_path_display_item.h"
  11 #include "cc/playback/compositing_display_item.h"
  12 #include "cc/playback/drawing_display_item.h"
  13 #include "cc/playback/filter_display_item.h"
  14 #include "cc/playback/float_clip_display_item.h"
  15 #include "cc/playback/transform_display_item.h"
  16
  17 #include "third_party/skia/include/core/SkPicture.h"
  18
  19 namespace {
  20 const size_t kLargestDisplayItemSize = sizeof(cc::TransformDisplayItem);
  21 }  // namespace
  22
  23 namespace cc {
  24
  25 size_t LargestDisplayItemSize() {
  26   // Use compile assert to make sure largest is actually larger than all other
  27   // type of display_items.
  28   static_assert(sizeof(ClipDisplayItem) <= kLargestDisplayItemSize,
  29                 "Largest Draw Quad size needs update. ClipDisplayItem"
  30                 " is currently largest.");
  31   static_assert(sizeof(EndClipDisplayItem) <= kLargestDisplayItemSize,
  32                 "Largest Draw Quad size needs update. EndClipDisplayItem"
  33                 " is currently largest.");
  34   static_assert(sizeof(ClipPathDisplayItem) <= kLargestDisplayItemSize,
  35                 "Largest Draw Quad size needs update. ClipPathDisplayItem"
  36                 " is currently largest.");
  37   static_assert(sizeof(EndClipPathDisplayItem) <= kLargestDisplayItemSize,
  38                 "Largest Draw Quad size needs update. EndClipPathDisplayItem"
  39                 " is currently largest.");
  40   static_assert(sizeof(CompositingDisplayItem) <= kLargestDisplayItemSize,
  41                 "Largest Draw Quad size needs update. CompositingDisplayItem"
  42                 " is currently largest.");
  43   static_assert(sizeof(EndCompositingDisplayItem) <= kLargestDisplayItemSize,
  44                 "Largest Draw Quad size needs update. EndCompositingDisplayItem"
  45                 " is currently largest.");
  46   static_assert(sizeof(DrawingDisplayItem) <= kLargestDisplayItemSize,
  47                 "Largest Draw Quad size needs update. DrawingDisplayItem"
  48                 " is currently largest.");
  49   static_assert(sizeof(FilterDisplayItem) <= kLargestDisplayItemSize,
  50                 "Largest Draw Quad size needs update. FilterDisplayItem"
  51                 " is currently largest.");
  52   static_assert(sizeof(EndFilterDisplayItem) <= kLargestDisplayItemSize,
  53                 "Largest Draw Quad size needs update. EndFilterDisplayItem"
  54                 " is currently largest.");
  55   static_assert(sizeof(FloatClipDisplayItem) <= kLargestDisplayItemSize,
  56                 "Largest Draw Quad size needs update. FloatClipDisplayItem"
  57                 " is currently largest.");
  58   static_assert(sizeof(EndFloatClipDisplayItem) <= kLargestDisplayItemSize,
  59                 "Largest Draw Quad size needs update. EndFloatClipDisplayItem"
  60                 " is currently largest.");
  61   static_assert(sizeof(TransformDisplayItem) <= kLargestDisplayItemSize,
  62                 "Largest Draw Quad size needs update. TransformDisplayItem"
  63                 " is currently largest.");
  64   static_assert(sizeof(EndTransformDisplayItem) <= kLargestDisplayItemSize,
  65                 "Largest Draw Quad size needs update. EndTransformDisplayItem"
  66                 " is currently largest.");
  67
  68   return kLargestDisplayItemSize;
  69 }
  70
  71 }  // namespace cc