cc/base/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/base/switches.h"
   6
   7 #include "base/command_line.h"
   8
   9 namespace cc {
  10 namespace switches {
  11
  12 const char kDisableThreadedAnimation[] = "disable-threaded-animation";
  13
  14 // Disables layer-edge anti-aliasing in the compositor.
  15 const char kDisableCompositedAntialiasing[] =
  16     "disable-composited-antialiasing";
  17
  18 // Disables sending the next BeginMainFrame before the previous commit
  19 // activates. Overrides the kEnableMainFrameBeforeActivation flag.
  20 const char kDisableMainFrameBeforeActivation[] =
  21     "disable-main-frame-before-activation";
  22
  23 // Enables sending the next BeginMainFrame before the previous commit activates.
  24 const char kEnableMainFrameBeforeActivation[] =
  25     "enable-main-frame-before-activation";
  26
  27 const char kEnableTopControlsPositionCalculation[] =
  28     "enable-top-controls-position-calculation";
  29
  30 // The height of the movable top controls.
  31 const char kTopControlsHeight[] = "top-controls-height";
  32
  33 // Percentage of the top controls need to be hidden before they will auto hide.
  34 const char kTopControlsHideThreshold[] = "top-controls-hide-threshold";
  35
  36 // Percentage of the top controls need to be shown before they will auto show.
  37 const char kTopControlsShowThreshold[] = "top-controls-show-threshold";
  38
  39 // Re-rasters everything multiple times to simulate a much slower machine.
  40 // Give a scale factor to cause raster to take that many times longer to
  41 // complete, such as --slow-down-raster-scale-factor=25.
  42 const char kSlowDownRasterScaleFactor[] = "slow-down-raster-scale-factor";
  43
  44 // Max tiles allowed for each tilings interest area.
  45 const char kMaxTilesForInterestArea[] = "max-tiles-for-interest-area";
  46
  47 // The amount of unused resource memory compositor is allowed to keep around.
  48 const char kMaxUnusedResourceMemoryUsagePercentage[] =
  49     "max-unused-resource-memory-usage-percentage";
  50
  51 // Causes the compositor to render to textures which are then sent to the parent
  52 // through the texture mailbox mechanism.
  53 // Requires --enable-compositor-frame-message.
  54 const char kCompositeToMailbox[] = "composite-to-mailbox";
  55
  56 // Check that property changes during paint do not occur.
  57 const char kStrictLayerPropertyChangeChecking[] =
  58     "strict-layer-property-change-checking";
  59
  60 // Virtual viewport for fixed-position elements, scrollbars during pinch.
  61 const char kEnablePinchVirtualViewport[] = "enable-pinch-virtual-viewport";
  62 const char kDisablePinchVirtualViewport[] = "disable-pinch-virtual-viewport";
  63
  64 // Disable partial swap which is needed for some OpenGL drivers / emulators.
  65 const char kUIDisablePartialSwap[] = "ui-disable-partial-swap";
  66
  67 // Enables the GPU benchmarking extension
  68 const char kEnableGpuBenchmarking[] = "enable-gpu-benchmarking";
  69
  70 // Renders a border around compositor layers to help debug and study
  71 // layer compositing.
  72 const char kShowCompositedLayerBorders[] = "show-composited-layer-borders";
  73 const char kUIShowCompositedLayerBorders[] = "ui-show-layer-borders";
  74
  75 // Draws a heads-up-display showing Frames Per Second as well as GPU memory
  76 // usage. If you also use --vmodule="head*=1" then FPS will also be output to
  77 // the console log.
  78 const char kShowFPSCounter[] = "show-fps-counter";
  79 const char kUIShowFPSCounter[] = "ui-show-fps-counter";
  80
  81 // Renders a border that represents the bounding box for the layer's animation.
  82 const char kShowLayerAnimationBounds[] = "show-layer-animation-bounds";
  83 const char kUIShowLayerAnimationBounds[] = "ui-show-layer-animation-bounds";
  84
  85 // Show rects in the HUD around layers whose properties have changed.
  86 const char kShowPropertyChangedRects[] = "show-property-changed-rects";
  87 const char kUIShowPropertyChangedRects[] = "ui-show-property-changed-rects";
  88
  89 // Show rects in the HUD around damage as it is recorded into each render
  90 // surface.
  91 const char kShowSurfaceDamageRects[] = "show-surface-damage-rects";
  92 const char kUIShowSurfaceDamageRects[] = "ui-show-surface-damage-rects";
  93
  94 // Show rects in the HUD around the screen-space transformed bounds of every
  95 // layer.
  96 const char kShowScreenSpaceRects[] = "show-screenspace-rects";
  97 const char kUIShowScreenSpaceRects[] = "ui-show-screenspace-rects";
  98
  99 // Show rects in the HUD around the screen-space transformed bounds of every
 100 // layer's replica, when they have one.
 101 const char kShowReplicaScreenSpaceRects[] = "show-replica-screenspace-rects";
 102 const char kUIShowReplicaScreenSpaceRects[] =
 103     "ui-show-replica-screenspace-rects";
 104
 105 // Show rects in the HUD wherever something is known to be drawn opaque and is
 106 // considered occluding the pixels behind it.
 107 const char kShowOccludingRects[] = "show-occluding-rects";
 108 const char kUIShowOccludingRects[] = "ui-show-occluding-rects";
 109
 110 // Show rects in the HUD wherever something is not known to be drawn opaque and
 111 // is not considered to be occluding the pixels behind it.
 112 const char kShowNonOccludingRects[] = "show-nonoccluding-rects";
 113 const char kUIShowNonOccludingRects[] = "ui-show-nonoccluding-rects";
 114
 115 // Prevents the layer tree unit tests from timing out.
 116 const char kCCLayerTreeTestNoTimeout[] = "cc-layer-tree-test-no-timeout";
 117
 118 // Makes pixel tests write their output instead of read it.
 119 const char kCCRebaselinePixeltests[] = "cc-rebaseline-pixeltests";
 120
 121 }  // namespace switches
 122 }  // namespace cc