110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2021 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef TRANSITIONBLOCK_H
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#define TRANSITIONBLOCK_H
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#include "node/block/block.h"
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namespace olive {
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class ClipBlock;
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class TransitionBlock : public Block
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{
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Q_OBJECT
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public:
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TransitionBlock();
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virtual void Retranslate() override;
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rational in_offset() const;
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rational out_offset() const;
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/**
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* @brief Return the "middle point" of the transition, relative to the transition
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*
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* Used to calculate in/out offsets.
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*
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* 0 means the center of the transition is right in the middle and the in and out offsets will
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* be equal.
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*/
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rational offset_center() const;
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void set_offset_center(const rational &r);
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void set_offsets_and_length(const rational &in_offset, const rational &out_offset);
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bool is_dual_transition() const
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{
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return connected_out_block() && connected_in_block();
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}
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Block* connected_out_block() const;
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Block* connected_in_block() const;
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double GetTotalProgress(const double &time) const;
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double GetOutProgress(const double &time) const;
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double GetInProgress(const double &time) const;
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virtual void Value(const NodeValueRow& value, const NodeGlobals &globals, NodeValueTable *table) const override;
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virtual void InvalidateCache(const TimeRange& range, const QString& from, int element = -1, InvalidateCacheOptions options = InvalidateCacheOptions()) override;
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static const QString kOutBlockInput;
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static const QString kInBlockInput;
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static const QString kCurveInput;
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static const QString kCenterInput;
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protected:
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virtual void ShaderJobEvent(const NodeValueRow &value, ShaderJob& job) const {}
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virtual void SampleJobEvent(const SampleBuffer &from_samples, const SampleBuffer &to_samples, SampleBuffer &out_samples, double time_in) const {}
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double TransformCurve(double linear) const;
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virtual void InputConnectedEvent(const QString& input, int element, Node *output) override;
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virtual void InputDisconnectedEvent(const QString& input, int element, Node *output) override;
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virtual TimeRange InputTimeAdjustment(const QString& input, int element, const TimeRange& input_time) const override;
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virtual TimeRange OutputTimeAdjustment(const QString& input, int element, const TimeRange& input_time) const override;
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private:
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enum CurveType {
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kLinear,
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kExponential,
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kLogarithmic
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};
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double GetInternalTransitionTime(const double &time) const;
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void InsertTransitionTimes(AcceleratedJob* job, const double& time) const;
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ClipBlock* connected_out_block_;
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ClipBlock* connected_in_block_;
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};
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}
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#endif // TRANSITIONBLOCK_H
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