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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_SCHEDULER_SCHEDULER_SETTINGS_H_
#define CC_SCHEDULER_SCHEDULER_SETTINGS_H_
#include <memory>
#include "cc/cc_export.h"
namespace base {
namespace trace_event {
class ConvertableToTraceFormat;
}
}
namespace cc {
class CC_EXPORT SchedulerSettings {
public:
SchedulerSettings();
SchedulerSettings(const SchedulerSettings& other);
~SchedulerSettings();
// Whether a BeginMainFrame should be issued while there is a pending-tree
// still waiting to be activated. This is disabled by default for the UI
// compositor, and enabled for renderers (unless there are too few cores).
bool main_frame_before_activation_enabled = false;
// Whether a BeginMainFrame should be issued while there is a previous commit
// still waiting to be processed.
bool main_frame_before_commit_enabled = false;
// Whether commits should happen directly to the active tree, skipping the
// pending tree. This is turned on only for the UI compositor (and in some
// tests).
bool commit_to_active_tree = false;
// This is enabled for android-webview.
bool using_synchronous_renderer_compositor = false;
// Turning this on effectively disables pipelining of compositor frame
// production stages by waiting for each stage to complete before producing
// the frame. This is enabled for headless-mode and some tests, and disabled
// elsewhere by default.
bool wait_for_all_pipeline_stages_before_draw = false;
int maximum_number_of_failed_draws_before_draw_is_forced = 3;
// Whether to disable the limit by which frames are drawn. If this is set,
// draws are not throttled when pending frames exceed the allowed maximum, as
// they would be under the default settings.
bool disable_frame_rate_limit = false;
// When true BeginImplFrameDeadlineMode::SCROLL will be enabled. This deadline
// is used to wait for `scroll_deadline_ratio` of `BeginFramrArgs::interval`
// for input to arrive, before attempting to draw.
bool scroll_deadline_mode_enabled = false;
double scroll_deadline_ratio = 0.333;
// The number of frames to allow slow main commits to delay impl invalidation
// frames by.
int delay_impl_invalidation_frames = 0;
std::unique_ptr<base::trace_event::ConvertableToTraceFormat> AsValue() const;
};
} // namespace cc
#endif // CC_SCHEDULER_SCHEDULER_SETTINGS_H_
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