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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 has
19 // drawn.
20 const char kDisableMainFrameBeforeDraw[] = "disable-main-frame-before-draw";
21 
22 // Disables sending the next BeginMainFrame before the previous commit
23 // activates. Overrides the kEnableMainFrameBeforeActivation flag.
24 const char kDisableMainFrameBeforeActivation[] =
25     "disable-main-frame-before-activation";
26 
27 // Enables sending the next BeginMainFrame before the previous commit activates.
28 const char kEnableMainFrameBeforeActivation[] =
29     "enable-main-frame-before-activation";
30 
31 const char kEnableTopControlsPositionCalculation[] =
32     "enable-top-controls-position-calculation";
33 
34 // The height of the movable top controls.
35 const char kTopControlsHeight[] = "top-controls-height";
36 
37 // Percentage of the top controls need to be hidden before they will auto hide.
38 const char kTopControlsHideThreshold[] = "top-controls-hide-threshold";
39 
40 // Percentage of the top controls need to be shown before they will auto show.
41 const char kTopControlsShowThreshold[] = "top-controls-show-threshold";
42 
43 // Re-rasters everything multiple times to simulate a much slower machine.
44 // Give a scale factor to cause raster to take that many times longer to
45 // complete, such as --slow-down-raster-scale-factor=25.
46 const char kSlowDownRasterScaleFactor[] = "slow-down-raster-scale-factor";
47 
48 // Max tiles allowed for each tilings interest area.
49 const char kMaxTilesForInterestArea[] = "max-tiles-for-interest-area";
50 
51 // The amount of unused resource memory compositor is allowed to keep around.
52 const char kMaxUnusedResourceMemoryUsagePercentage[] =
53     "max-unused-resource-memory-usage-percentage";
54 
55 // Causes the compositor to render to textures which are then sent to the parent
56 // through the texture mailbox mechanism.
57 // Requires --enable-compositor-frame-message.
58 const char kCompositeToMailbox[] = "composite-to-mailbox";
59 
60 // Check that property changes during paint do not occur.
61 const char kStrictLayerPropertyChangeChecking[] =
62     "strict-layer-property-change-checking";
63 
64 // Virtual viewport for fixed-position elements, scrollbars during pinch.
65 const char kEnablePinchVirtualViewport[] = "enable-pinch-virtual-viewport";
66 const char kDisablePinchVirtualViewport[] = "disable-pinch-virtual-viewport";
67 
68 // Disable partial swap which is needed for some OpenGL drivers / emulators.
69 const char kUIDisablePartialSwap[] = "ui-disable-partial-swap";
70 
71 // Enables the GPU benchmarking extension
72 const char kEnableGpuBenchmarking[] = "enable-gpu-benchmarking";
73 
74 // Renders a border around compositor layers to help debug and study
75 // layer compositing.
76 const char kShowCompositedLayerBorders[] = "show-composited-layer-borders";
77 const char kUIShowCompositedLayerBorders[] = "ui-show-layer-borders";
78 
79 // Draws a FPS indicator
80 const char kShowFPSCounter[] = "show-fps-counter";
81 const char kUIShowFPSCounter[] = "ui-show-fps-counter";
82 
83 // Renders a border that represents the bounding box for the layer's animation.
84 const char kShowLayerAnimationBounds[] = "show-layer-animation-bounds";
85 const char kUIShowLayerAnimationBounds[] = "ui-show-layer-animation-bounds";
86 
87 // Show rects in the HUD around layers whose properties have changed.
88 const char kShowPropertyChangedRects[] = "show-property-changed-rects";
89 const char kUIShowPropertyChangedRects[] = "ui-show-property-changed-rects";
90 
91 // Show rects in the HUD around damage as it is recorded into each render
92 // surface.
93 const char kShowSurfaceDamageRects[] = "show-surface-damage-rects";
94 const char kUIShowSurfaceDamageRects[] = "ui-show-surface-damage-rects";
95 
96 // Show rects in the HUD around the screen-space transformed bounds of every
97 // layer.
98 const char kShowScreenSpaceRects[] = "show-screenspace-rects";
99 const char kUIShowScreenSpaceRects[] = "ui-show-screenspace-rects";
100 
101 // Show rects in the HUD around the screen-space transformed bounds of every
102 // layer's replica, when they have one.
103 const char kShowReplicaScreenSpaceRects[] = "show-replica-screenspace-rects";
104 const char kUIShowReplicaScreenSpaceRects[] =
105     "ui-show-replica-screenspace-rects";
106 
107 // Show rects in the HUD wherever something is known to be drawn opaque and is
108 // considered occluding the pixels behind it.
109 const char kShowOccludingRects[] = "show-occluding-rects";
110 const char kUIShowOccludingRects[] = "ui-show-occluding-rects";
111 
112 // Show rects in the HUD wherever something is not known to be drawn opaque and
113 // is not considered to be occluding the pixels behind it.
114 const char kShowNonOccludingRects[] = "show-nonoccluding-rects";
115 const char kUIShowNonOccludingRects[] = "ui-show-nonoccluding-rects";
116 
117 // Prevents the layer tree unit tests from timing out.
118 const char kCCLayerTreeTestNoTimeout[] = "cc-layer-tree-test-no-timeout";
119 
120 // Makes pixel tests write their output instead of read it.
121 const char kCCRebaselinePixeltests[] = "cc-rebaseline-pixeltests";
122 
123 }  // namespace switches
124 }  // namespace cc
125