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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/switches.h"
#include "base/command_line.h"
namespace cc {
namespace switches {
// On platforms where checkerboards are used, prefer background colors instead
// of checkerboards.
const char kBackgroundColorInsteadOfCheckerboard[] =
"background-color-instead-of-checkerboard";
const char kDisableThreadedAnimation[] = "disable-threaded-animation";
// Send a message for every frame from the impl thread to the parent compositor.
const char kEnableCompositorFrameMessage[] = "enable-compositor-frame-message";
// Paint content on the main thread instead of the compositor thread.
// Overrides the kEnableImplSidePainting flag.
const char kDisableImplSidePainting[] = "disable-impl-side-painting";
// Paint content on the compositor thread instead of the main thread.
const char kEnableImplSidePainting[] = "enable-impl-side-painting";
const char kEnablePartialSwap[] = "enable-partial-swap";
const char kEnablePerTilePainting[] = "enable-per-tile-painting";
// Try to finish display pipeline before vsync tick
const char kEnableRightAlignedScheduling[] = "enable-right-aligned-scheduling";
const char kEnableTopControlsPositionCalculation[] =
"enable-top-controls-position-calculation";
// The height of the movable top controls.
const char kTopControlsHeight[] = "top-controls-height";
// Percentage of the top controls need to be hidden before they will auto hide.
const char kTopControlsHideThreshold[] = "top-controls-hide-threshold";
// Percentage of the top controls need to be shown before they will auto show.
const char kTopControlsShowThreshold[] = "top-controls-show-threshold";
// Number of worker threads used to rasterize content.
const char kNumRasterThreads[] = "num-raster-threads";
// Show rects in the HUD around layers whose properties have changed.
const char kShowPropertyChangedRects[] = "show-property-changed-rects";
// Show rects in the HUD around damage as it is recorded into each render
// surface.
const char kShowSurfaceDamageRects[] = "show-surface-damage-rects";
// Show rects in the HUD around the screen-space transformed bounds of every
// layer.
const char kShowScreenSpaceRects[] = "show-screenspace-rects";
// Show rects in the HUD around the screen-space transformed bounds of every
// layer's replica, when they have one.
const char kShowReplicaScreenSpaceRects[] = "show-replica-screenspace-rects";
// Show rects in the HUD wherever something is known to be drawn opaque and is
// considered occluding the pixels behind it.
const char kShowOccludingRects[] = "show-occluding-rects";
// Show rects in the HUD wherever something is not known to be drawn opaque and
// is not considered to be occluding the pixels behind it.
const char kShowNonOccludingRects[] = "show-nonoccluding-rects";
// Show metrics about overdraw in about:tracing recordings, such as the number
// of pixels culled, and the number of pixels drawn, for each frame.
const char kTraceOverdraw[] = "trace-overdraw";
// Logs all rendered frames.
const char kTraceAllRenderedFrames[] = "trace-all-rendered-frames";
// Re-rasters everything multiple times to simulate a much slower machine.
// Give a scale factor to cause raster to take that many times longer to
// complete, such as --slow-down-raster-scale-factor=25.
const char kSlowDownRasterScaleFactor[] = "slow-down-raster-scale-factor";
// Schedule rasterization jobs according to their estimated processing cost.
const char kUseCheapnessEstimator[] = "use-cheapness-estimator";
// The scale factor for low resolution tile contents.
const char kLowResolutionContentsScaleFactor[] =
"low-resolution-contents-scale-factor";
bool IsImplSidePaintingEnabled() {
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(cc::switches::kDisableImplSidePainting))
return false;
else if (command_line.HasSwitch(cc::switches::kEnableImplSidePainting))
return true;
#if defined(OS_ANDROID)
return true;
#else
return false;
#endif
}
} // namespace switches
} // namespace cc
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