cc/switches.cc

   1 // Copyright (c) 2012 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/switches.h"
   6
   7 namespace cc {
   8 namespace switches {
   9
  10 // On platforms where checkerboards are used, prefer background colors instead
  11 // of checkerboards.
  12 const char kBackgroundColorInsteadOfCheckerboard[] =
  13     "background-color-instead-of-checkerboard";
  14
  15 const char kDisableThreadedAnimation[]      = "disable-threaded-animation";
  16
  17 // Send a message for every frame from the impl thread to the parent compositor.
  18 const char kEnableCompositorFrameMessage[] = "enable-compositor-frame-message";
  19
  20 // Paint content on the compositor thread instead of the main thread.
  21 const char kEnableImplSidePainting[] = "enable-impl-side-painting";
  22
  23 const char kEnablePartialSwap[]             = "enable-partial-swap";
  24
  25 const char kEnablePerTilePainting[]         = "enable-per-tile-painting";
  26
  27 // Number of worker threads used to rasterize content.
  28 const char kNumRasterThreads[] = "num-raster-threads";
  29
  30 // Show rects in the HUD around layers whose properties have changed.
  31 const char kShowPropertyChangedRects[] = "show-property-changed-rects";
  32
  33 // Show rects in the HUD around damage as it is recorded into each render
  34 // surface.
  35 const char kShowSurfaceDamageRects[] = "show-surface-damage-rects";
  36
  37 // Show rects in the HUD around the screen-space transformed bounds of every
  38 // layer.
  39 const char kShowScreenSpaceRects[] = "show-screenspace-rects";
  40
  41 // Show rects in the HUD around the screen-space transformed bounds of every
  42 // layer's replica, when they have one.
  43 const char kShowReplicaScreenSpaceRects[] = "show-replica-screenspace-rects";
  44
  45 // Show rects in the HUD wherever something is known to be drawn opaque and is
  46 // considered occluding the pixels behind it.
  47 const char kShowOccludingRects[] = "show-occluding-rects";
  48
  49 // Show rects in the HUD wherever something is not known to be drawn opaque and
  50 // is not considered to be occluding the pixels behind it.
  51 const char kShowNonOccludingRects[] = "show-nonoccluding-rects";
  52
  53 // Show metrics about overdraw in about:tracing recordings, such as the number
  54 // of pixels culled, and the number of pixels drawn, for each frame.
  55 const char kTraceOverdraw[] = "trace-overdraw";
  56
  57 }  // namespace switches
  58 }  // namespace cc