itsmattkc
53ae25a7cb
A huge optimization that ensures only the parts of a node graph that have changed get pushed to the renderer. For thread-safety, the node graph is copied elsewhere so that users can make changes asynchronously and the graph can update when its threads are ready. Up until now, if an input value changed, every node's values would be re-copied, or worse, if a connection was changed, the entire graph would be recopied. This has been negligible in testing since we've been largely testing with small graphs, but for massive projects, it's important that this be as optimized as possible.
123 lines
3.0 KiB
C++
123 lines
3.0 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"
|
|
|
|
OLIVE_NAMESPACE_ENTER
|
|
|
|
ClipBlock::ClipBlock()
|
|
{
|
|
texture_input_ = new NodeInput("buffer_in", NodeInput::kBuffer);
|
|
texture_input_->set_is_keyframable(false);
|
|
AddInput(texture_input_);
|
|
}
|
|
|
|
Node *ClipBlock::copy() const
|
|
{
|
|
return new ClipBlock();
|
|
}
|
|
|
|
Block::Type ClipBlock::type() const
|
|
{
|
|
return kClip;
|
|
}
|
|
|
|
QString ClipBlock::Name() const
|
|
{
|
|
return tr("Clip");
|
|
}
|
|
|
|
QString ClipBlock::id() const
|
|
{
|
|
return QStringLiteral("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 TimeRange &range, NodeInput *from, NodeInput *source)
|
|
{
|
|
// If signal is from texture input, transform all times from media time to sequence time
|
|
if (from == texture_input_) {
|
|
rational start = MediaToSequenceTime(range.in());
|
|
rational end = MediaToSequenceTime(range.out());
|
|
|
|
// Ensure range actually covers this clip's area
|
|
if (!(end < in() || start > out())) {
|
|
|
|
// Limit cache invalidation to clip lengths
|
|
start = qMax(start, in());
|
|
end = qMin(end, out());
|
|
|
|
Node::InvalidateCache(TimeRange(start, end), from, source);
|
|
|
|
}
|
|
} else {
|
|
// Otherwise, pass signal along normally
|
|
Node::InvalidateCache(range, from, source);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
TimeRange ClipBlock::OutputTimeAdjustment(NodeInput *input, const TimeRange &input_time) const
|
|
{
|
|
if (input == texture_input_) {
|
|
return TimeRange(MediaToSequenceTime(input_time.in()), MediaToSequenceTime(input_time.out()));
|
|
}
|
|
|
|
return Block::InputTimeAdjustment(input, input_time);
|
|
}
|
|
|
|
NodeValueTable ClipBlock::Value(NodeValueDatabase &value) const
|
|
{
|
|
// We discard most values here except for the buffer we received
|
|
NodeValue data = value[texture_input()].GetWithMeta(NodeParam::kBuffer);
|
|
|
|
NodeValueTable table;
|
|
if (data.type() != NodeParam::kNone) {
|
|
table.Push(data);
|
|
}
|
|
return table;
|
|
}
|
|
|
|
void ClipBlock::Retranslate()
|
|
{
|
|
Block::Retranslate();
|
|
|
|
texture_input_->set_name(tr("Buffer"));
|
|
}
|
|
|
|
OLIVE_NAMESPACE_EXIT
|