Files
oak-editor/app/node/block/clip/clip.cpp
T
itsmattkc bc0f01d9a3 make nodes more const friendly and prepare their functions for stateless work
Since the nodes won't be holding any rendering data themselves in this system,
we may as well enforce some level of non-write access by setting all the
functions to const. They were already const-friendly, they just weren't
labelled as such.
2019-12-04 20:10:42 +11:00

96 lines
2.4 KiB
C++

/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "clip.h"
ClipBlock::ClipBlock()
{
texture_input_ = new NodeInput("tex_in");
texture_input_->set_data_type(NodeInput::kTexture);
AddParameter(texture_input_);
}
Node *ClipBlock::copy() const
{
ClipBlock* c = new ClipBlock();
CopyParameters(this, c);
return c;
}
Block::Type ClipBlock::type() const
{
return kClip;
}
QString ClipBlock::Name() const
{
return tr("Clip");
}
QString ClipBlock::id() const
{
return "org.olivevideoeditor.Olive.clip";
}
QString ClipBlock::Description() const
{
return tr("A time-based node that represents a media source.");
}
NodeInput *ClipBlock::texture_input() const
{
return texture_input_;
}
void ClipBlock::InvalidateCache(const rational &start_range, const rational &end_range, NodeInput *from)
{
// If signal is from texture input, transform all times from media time to sequence time
if (from == texture_input_) {
rational start = MediaToSequenceTime(start_range);
rational end = MediaToSequenceTime(end_range);
// Limit cache invalidation to clip lengths
start = qMax(start, in());
end = qMin(end, out());
Node::InvalidateCache(start, end, from);
} else {
// Otherwise, pass signal along normally
Node::InvalidateCache(start_range, end_range, from);
}
}
TimeRange ClipBlock::InputTimeAdjustment(NodeInput *input, const TimeRange &input_time) const
{
if (input == texture_input_) {
return TimeRange(SequenceToMediaTime(input_time.in()), SequenceToMediaTime(input_time.out()));
}
return Block::InputTimeAdjustment(input, input_time);
}
NodeValueTable ClipBlock::Value(const NodeValueDatabase &value) const
{
// We just pass through the data here, the renderer should have gotten the correct time from InputTimeAdjustment
return value.Merge();
}