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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/animation/filter_animation_curve.h"
#include "base/memory/ptr_util.h"
#include "ui/gfx/animation/keyframe/keyframed_animation_curve-inl.h"
namespace cc {
void FilterAnimationCurve::Tick(
base::TimeDelta t,
int property_id,
gfx::KeyframeModel* keyframe_model,
gfx::TimingFunction::LimitDirection limit_direction) const {
if (target_) {
target_->OnFilterAnimated(GetTransformedValue(t, limit_direction),
property_id, keyframe_model);
}
}
int FilterAnimationCurve::Type() const {
return gfx::AnimationCurve::FILTER;
}
const char* FilterAnimationCurve::TypeName() const {
return "Filter";
}
const FilterAnimationCurve* FilterAnimationCurve::ToFilterAnimationCurve(
const gfx::AnimationCurve* c) {
DCHECK_EQ(gfx::AnimationCurve::FILTER, c->Type());
return static_cast<const FilterAnimationCurve*>(c);
}
FilterAnimationCurve* FilterAnimationCurve::ToFilterAnimationCurve(
gfx::AnimationCurve* c) {
DCHECK_EQ(AnimationCurve::FILTER, c->Type());
return static_cast<FilterAnimationCurve*>(c);
}
std::unique_ptr<FilterKeyframe> FilterKeyframe::Create(
base::TimeDelta time,
const FilterOperations& value,
std::unique_ptr<gfx::TimingFunction> timing_function) {
return base::WrapUnique(
new FilterKeyframe(time, value, std::move(timing_function)));
}
FilterKeyframe::FilterKeyframe(
base::TimeDelta time,
const FilterOperations& value,
std::unique_ptr<gfx::TimingFunction> timing_function)
: Keyframe(time, std::move(timing_function)), value_(value) {}
FilterKeyframe::~FilterKeyframe() = default;
const FilterOperations& FilterKeyframe::Value() const {
return value_;
}
std::unique_ptr<FilterKeyframe> FilterKeyframe::Clone() const {
std::unique_ptr<gfx::TimingFunction> func;
if (timing_function())
func = timing_function()->Clone();
return FilterKeyframe::Create(Time(), Value(), std::move(func));
}
base::TimeDelta KeyframedFilterAnimationCurve::TickInterval() const {
return ComputeTickInterval(timing_function_, scaled_duration(), keyframes_);
}
void KeyframedFilterAnimationCurve::AddKeyframe(
std::unique_ptr<FilterKeyframe> keyframe) {
InsertKeyframe(std::move(keyframe), &keyframes_);
}
base::TimeDelta KeyframedFilterAnimationCurve::Duration() const {
return (keyframes_.back()->Time() - keyframes_.front()->Time()) *
scaled_duration();
}
std::unique_ptr<gfx::AnimationCurve> KeyframedFilterAnimationCurve::Clone()
const {
std::unique_ptr<KeyframedFilterAnimationCurve> to_return =
KeyframedFilterAnimationCurve::Create();
for (const auto& keyframe : keyframes_)
to_return->AddKeyframe(keyframe->Clone());
if (timing_function_)
to_return->SetTimingFunction(timing_function_->Clone());
to_return->set_scaled_duration(scaled_duration());
return std::move(to_return);
}
// Use GetTransformedValue instead. This method is for animation curves that
// do not use timing functions.
FilterOperations KeyframedFilterAnimationCurve::GetValue(
base::TimeDelta t) const {
NOTREACHED();
}
FilterOperations KeyframedFilterAnimationCurve::GetTransformedValue(
base::TimeDelta t,
gfx::TimingFunction::LimitDirection limit_direction) const {
KeyframesAndProgress values = GetKeyframesAndProgress(
keyframes_, timing_function_, scaled_duration(), t, limit_direction);
return keyframes_[values.to]->Value().Blend(keyframes_[values.from]->Value(),
values.progress);
}
std::unique_ptr<KeyframedFilterAnimationCurve>
KeyframedFilterAnimationCurve::Create() {
return base::WrapUnique(new KeyframedFilterAnimationCurve);
}
KeyframedFilterAnimationCurve::KeyframedFilterAnimationCurve()
: scaled_duration_(1.0) {}
KeyframedFilterAnimationCurve::~KeyframedFilterAnimationCurve() = default;
} // namespace cc
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