connect timeline and viewer together by default
This commit is contained in:
itsmattkc
@@ -36,7 +36,8 @@ RendererProcessor::RendererProcessor() :
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width_(0),
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height_(0),
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divider_(1),
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caching_(false)
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caching_(false),
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starting_(false)
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{
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texture_input_ = new NodeInput("tex_in");
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texture_input_->add_data_input(NodeInput::kTexture);
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@@ -207,6 +207,8 @@ private:
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QList<HashTimeMapping> deferred_maps_;
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bool starting_;
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private slots:
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void ThreadCallback(RenderTexturePtr texture, const rational& time, const QByteArray& hash);
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@@ -0,0 +1,477 @@
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/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 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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#include "rendermanager.h"
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#include <OpenImageIO/imageio.h>
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#include <QApplication>
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#include <QCryptographicHash>
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#include <QDateTime>
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#include <QDebug>
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#include <QDir>
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#include <QtMath>
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#include "common/filefunctions.h"
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#include "render/pixelservice.h"
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RenderManager* RenderManager::instance_ = nullptr;
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RenderManager::RenderManager() :
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started_(false),
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width_(0),
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height_(0),
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divider_(1),
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caching_(false),
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texture_input_(nullptr)
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{
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}
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void RenderManager::CreateInstance()
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{
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if (instance_ == nullptr) {
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instance_ = new RenderManager();
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}
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}
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void RenderManager::DestroyInstance()
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{
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delete instance_;
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instance_ = nullptr;
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}
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RenderManager *RenderManager::instance()
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{
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return instance_;
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}
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void RenderManager::SetCacheName(const QString &s)
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{
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cache_name_ = s;
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cache_time_ = QDateTime::currentMSecsSinceEpoch();
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GenerateCacheIDInternal();
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}
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void RenderManager::InvalidateCache(const rational &start_range, const rational &end_range, const rational& last_requested_time)
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{
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if (timebase_.isNull()) {
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return;
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}
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qDebug() << "Cache invalidated between"
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<< start_range.toDouble()
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<< "and"
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<< end_range.toDouble();
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// Snap start_range to timebase
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double start_range_dbl = start_range.toDouble();
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double start_range_numf = start_range_dbl * static_cast<double>(timebase_.denominator());
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int64_t start_range_numround = qFloor(start_range_numf/static_cast<double>(timebase_.numerator())) * timebase_.numerator();
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rational true_start_range(start_range_numround, timebase_.denominator());
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for (rational r=true_start_range;r<=end_range;r+=timebase_) {
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// Try to order the queue from closest to the playhead to furthest
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rational diff = r - last_requested_time;
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if (diff < 0) {
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// FIXME: Hardcoded number
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// If the number is before the playhead, we still prioritize its closeness but not nearly as much (5:1 in this
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// example)
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diff = qAbs(diff) * 5;
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}
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bool contains = false;
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bool added = false;
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QLinkedList<rational>::iterator insert_iterator;
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for (QLinkedList<rational>::iterator i = cache_queue_.begin();i != cache_queue_.end();i++) {
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rational compare = *i;
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if (!added) {
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rational compare_diff = compare - last_requested_time;
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if (compare_diff > diff) {
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insert_iterator = i;
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added = true;
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}
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}
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if (compare == r) {
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contains = true;
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break;
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}
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}
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if (!contains) {
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if (added) {
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cache_queue_.insert(insert_iterator, r);
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} else {
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cache_queue_.append(r);
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}
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}
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}
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CacheNext();
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}
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void RenderManager::SetTimebase(const rational &timebase)
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{
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timebase_ = timebase;
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timebase_dbl_ = timebase_.toDouble();
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}
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void RenderManager::SetParameters(const int &width,
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const int &height,
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const olive::PixelFormat &format,
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const olive::RenderMode &mode,
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NodeInput* input,
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const int& divider)
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{
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// Since we're changing parameters, all the existing threads are invalid and must be removed. They will start again
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// next time this Node has to process anything.
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Stop();
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// Set new parameters
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width_ = width;
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height_ = height;
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format_ = format;
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mode_ = mode;
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texture_input_ = input;
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// divider's default value is 0, so we can assume if it's 0 a divider wasn't specified
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if (divider > 0) {
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divider_ = divider;
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}
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CalculateEffectiveDimensions();
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// Regenerate the cache ID
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GenerateCacheIDInternal();
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}
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void RenderManager::SetDivider(const int ÷r)
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{
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Q_ASSERT(divider_ > 0);
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Stop();
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divider_ = divider;
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CalculateEffectiveDimensions();
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// Regenerate the cache ID
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GenerateCacheIDInternal();
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}
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void RenderManager::Start()
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{
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if (started_) {
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return;
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}
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QOpenGLContext* ctx = QOpenGLContext::currentContext();
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int background_thread_count = QThread::idealThreadCount();
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// Some OpenGL implementations (notably wgl) require the context not to be current before sharing
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QSurface* old_surface = ctx->surface();
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ctx->doneCurrent();
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threads_.resize(background_thread_count);
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for (int i=0;i<threads_.size();i++) {
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threads_[i] = std::make_shared<RendererProcessThread>(this, ctx, effective_width_, effective_height_, divider_, format_, mode_);
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threads_[i]->StartThread(QThread::LowPriority);
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// Ensure this connection is "Queued" so that it always runs in this object's threaded rather than any of the
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// other threads
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connect(threads_.at(i).get(),
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SIGNAL(RequestSibling(NodeDependency)),
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this,
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SLOT(ThreadRequestSibling(NodeDependency)),
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Qt::QueuedConnection);
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}
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// Connect first thread (master thread) to the callback
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connect(threads_.first().get(),
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SIGNAL(CachedFrame(RenderTexturePtr, const rational&, const QByteArray&)),
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this,
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SLOT(ThreadCallback(RenderTexturePtr, const rational&, const QByteArray&)),
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Qt::QueuedConnection);
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connect(threads_.first().get(),
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SIGNAL(FrameSkipped(const rational&, const QByteArray&)),
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this,
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SLOT(ThreadSkippedFrame(const rational&, const QByteArray&)),
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Qt::QueuedConnection);
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download_threads_.resize(background_thread_count);
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for (int i=0;i<download_threads_.size();i++) {
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// Create download thread
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download_threads_[i] = std::make_shared<RendererDownloadThread>(ctx, effective_width_, effective_height_, divider_, format_, mode_);
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download_threads_[i]->StartThread(QThread::LowPriority);
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connect(download_threads_[i].get(),
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SIGNAL(Downloaded(const QByteArray&)),
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this,
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SLOT(DownloadThreadComplete(const QByteArray&)),
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Qt::QueuedConnection);
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}
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last_download_thread_ = 0;
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// Restore context now that thread creation is complete
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ctx->makeCurrent(old_surface);
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cache_frame_load_buffer_.resize(PixelService::GetBufferSize(format_, effective_width_, effective_height_));
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started_ = true;
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}
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void RenderManager::Stop()
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{
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if (!started_) {
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return;
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}
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started_ = false;
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foreach (RendererDownloadThreadPtr download_thread_, download_threads_) {
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download_thread_->Cancel();
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}
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download_threads_.clear();
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foreach (RendererProcessThreadPtr process_thread, threads_) {
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process_thread->Cancel();
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}
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threads_.clear();
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cache_frame_load_buffer_.clear();
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}
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void RenderManager::GenerateCacheIDInternal()
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{
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if (cache_name_.isEmpty() || effective_width_ == 0 || effective_height_ == 0) {
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return;
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}
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// Generate an ID that is more or less guaranteed to be unique to this Sequence
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QCryptographicHash hash(QCryptographicHash::Sha1);
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hash.addData(cache_name_.toUtf8());
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hash.addData(QString::number(cache_time_).toUtf8());
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hash.addData(QString::number(width_).toUtf8());
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hash.addData(QString::number(height_).toUtf8());
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hash.addData(QString::number(format_).toUtf8());
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hash.addData(QString::number(divider_).toUtf8());
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QByteArray bytes = hash.result();
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cache_id_ = bytes.toHex();
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}
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void RenderManager::CacheNext()
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{
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if (texture_input_ == nullptr || cache_queue_.isEmpty() || !texture_input_->IsConnected() || caching_) {
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return;
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}
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// Make sure cache has started
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Start();
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rational cache_frame = cache_queue_.takeFirst();
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qDebug() << "Caching" << cache_frame.toDouble();
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threads_.first()->Queue(NodeDependency(texture_input_->get_connected_output(), cache_frame), true, false);
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caching_ = true;
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}
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QString RenderManager::CachePathName(const QByteArray &hash)
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{
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QDir this_cache_dir = QDir(GetMediaCacheLocation()).filePath(cache_id_);
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this_cache_dir.mkpath(".");
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QString filename = QString("%1.exr").arg(QString(hash.toHex()));
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return this_cache_dir.filePath(filename);
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}
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void RenderManager::DeferMap(const rational &time, const QByteArray &hash)
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{
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deferred_maps_.append({time, hash});
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}
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bool RenderManager::HasHash(const QByteArray &hash)
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{
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return QFileInfo::exists(CachePathName(hash));
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}
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bool RenderManager::IsCaching(const QByteArray &hash)
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{
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cache_hash_list_mutex_.lock();
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bool is_caching = cache_hash_list_.contains(hash);
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cache_hash_list_mutex_.unlock();
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return is_caching;
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}
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bool RenderManager::TryCache(const QByteArray &hash)
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{
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cache_hash_list_mutex_.lock();
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bool is_caching = cache_hash_list_.contains(hash);
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if (!is_caching) {
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cache_hash_list_.append(hash);
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}
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cache_hash_list_mutex_.unlock();
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return !is_caching;
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}
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void RenderManager::RetrieveImage(RenderTexturePtr destination_texture, const rational &time)
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{
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if (cache_id_.isEmpty()) {
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qWarning() << "RendererProcessor has no cache ID";
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return;
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}
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if (timebase_.isNull()) {
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qWarning() << "RendererProcessor has no timebase";
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return;
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}
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// Find frame in map
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if (time_hash_map_.contains(time)) {
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QString fn = CachePathName(time_hash_map_[time]);
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if (QFileInfo::exists(fn)) {
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auto in = OIIO::ImageInput::open(fn.toStdString());
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if (in) {
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in->read_image(PixelService::GetPixelFormatInfo(format_).oiio_desc, cache_frame_load_buffer_.data());
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in->close();
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destination_texture->Upload(cache_frame_load_buffer_.data());
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} else {
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qWarning() << "OIIO Error:" << OIIO::geterror().c_str();
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}
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}
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}
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}
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void RenderManager::CalculateEffectiveDimensions()
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{
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effective_width_ = width_ / divider_;
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effective_height_ = height_ / divider_;
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}
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void RenderManager::ThreadCallback(RenderTexturePtr texture, const rational& time, const QByteArray& hash)
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{
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// Threads are all done now, time to proceed
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caching_ = false;
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DeferMap(time, hash);
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|
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if (texture != nullptr) {
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// We received a texture, time to start downloading it
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QString fn = CachePathName(hash);
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download_threads_[last_download_thread_%download_threads_.size()]->Queue(texture,
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fn,
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hash);
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last_download_thread_++;
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} else {
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// There was no texture here, we must update the viewer
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DownloadThreadComplete(hash);
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}
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|
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emit FrameReadyWithTexture(time, texture);
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||||
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CacheNext();
|
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}
|
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void RenderManager::ThreadRequestSibling(NodeDependency dep)
|
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{
|
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// Try to queue another thread to run this dep in advance
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||||
for (int i=1;i<threads_.size();i++) {
|
||||
if (threads_.at(i)->Queue(dep, false, true)) {
|
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return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void RenderManager::ThreadSkippedFrame(const rational& time, const QByteArray& hash)
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{
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caching_ = false;
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||||
|
||||
DeferMap(time, hash);
|
||||
|
||||
if (!IsCaching(hash)) {
|
||||
DownloadThreadComplete(hash);
|
||||
|
||||
// Signal output to update value
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||||
emit FrameReady(time);
|
||||
}
|
||||
|
||||
CacheNext();
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||||
}
|
||||
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void RenderManager::DownloadThreadComplete(const QByteArray &hash)
|
||||
{
|
||||
cache_hash_list_mutex_.lock();
|
||||
cache_hash_list_.removeAll(hash);
|
||||
cache_hash_list_mutex_.unlock();
|
||||
|
||||
for (int i=0;i<deferred_maps_.size();i++) {
|
||||
const HashTimeMapping& deferred = deferred_maps_.at(i);
|
||||
|
||||
if (deferred_maps_.at(i).hash == hash) {
|
||||
// Insert into hash map
|
||||
time_hash_map_.insert(deferred.time, deferred.hash);
|
||||
|
||||
deferred_maps_.removeAt(i);
|
||||
i--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
RendererThreadBase* RenderManager::CurrentThread()
|
||||
{
|
||||
return dynamic_cast<RendererThreadBase*>(QThread::currentThread());
|
||||
}
|
||||
|
||||
RenderInstance *RenderManager::CurrentInstance()
|
||||
{
|
||||
RendererThreadBase* thread = CurrentThread();
|
||||
|
||||
if (thread != nullptr) {
|
||||
return thread->render_instance();
|
||||
}
|
||||
|
||||
return nullptr;
|
||||
}
|
||||
@@ -0,0 +1,218 @@
|
||||
/***
|
||||
|
||||
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/>.
|
||||
|
||||
***/
|
||||
|
||||
#ifndef RENDERMANAGER_H
|
||||
#define RENDERMANAGER_H
|
||||
|
||||
#include <QLinkedList>
|
||||
#include <QOpenGLTexture>
|
||||
|
||||
#include "node/node.h"
|
||||
#include "render/pixelformat.h"
|
||||
#include "render/rendermodes.h"
|
||||
#include "rendererdownloadthread.h"
|
||||
#include "rendererprocessthread.h"
|
||||
|
||||
/**
|
||||
* @brief A multithreaded OpenGL based renderer for node systems
|
||||
*/
|
||||
class RenderManager : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
public:
|
||||
/**
|
||||
* @brief Renderer Constructor
|
||||
*
|
||||
* Constructing a Renderer object will not start any threads/backend on its own. Use Start() to do this and Stop()
|
||||
* when the Renderer is about to be destroyed.
|
||||
*/
|
||||
RenderManager();
|
||||
|
||||
static void CreateInstance();
|
||||
|
||||
static void DestroyInstance();
|
||||
|
||||
static RenderManager* instance();
|
||||
|
||||
void SetCacheName(const QString& s);
|
||||
|
||||
void SetTimebase(const rational& timebase);
|
||||
|
||||
void InvalidateCache(const rational &start_range, const rational &end_range, const rational &last_requested_time);
|
||||
|
||||
/**
|
||||
* @brief Set parameters of the Renderer
|
||||
*
|
||||
* The Renderer owns the buffers that are used in the rendering process and this function sets the kind of buffers
|
||||
* to use. The Renderer must be stopped when calling this function.
|
||||
*
|
||||
* @param width
|
||||
*
|
||||
* Buffer width
|
||||
*
|
||||
* @param height
|
||||
*
|
||||
* Buffer height
|
||||
*
|
||||
* @param format
|
||||
*
|
||||
* Buffer pixel format
|
||||
*/
|
||||
void SetParameters(const int& width,
|
||||
const int& height,
|
||||
const olive::PixelFormat& format,
|
||||
const olive::RenderMode& mode,
|
||||
NodeInput *input,
|
||||
const int ÷r = 0);
|
||||
|
||||
void SetDivider(const int& divider);
|
||||
|
||||
/**
|
||||
* @brief Return whether a frame with this hash already exists
|
||||
*/
|
||||
bool HasHash(const QByteArray& hash);
|
||||
|
||||
/**
|
||||
* @brief Return whether a frame is currently being cached
|
||||
*/
|
||||
bool IsCaching(const QByteArray& hash);
|
||||
|
||||
/**
|
||||
* @brief Check if a frame is currently being cached, and if not reserve it
|
||||
*/
|
||||
bool TryCache(const QByteArray& hash);
|
||||
|
||||
/**
|
||||
* @brief Retrieve the cached frame at `time` and upload it to `destination_texture`
|
||||
*/
|
||||
void RetrieveImage(RenderTexturePtr destination_texture, const rational& time);
|
||||
|
||||
/**
|
||||
* @brief Allocate and start the multithreaded backend
|
||||
*/
|
||||
void Start();
|
||||
|
||||
/**
|
||||
* @brief Terminate and deallocate the multithreaded backend
|
||||
*/
|
||||
void Stop();
|
||||
|
||||
/**
|
||||
* @brief Return current instance of a RenderThread (or nullptr if there is none)
|
||||
*
|
||||
* This function attempts a dynamic_cast on QThread::currentThread() to RendererThread, which will return nullptr if
|
||||
* the cast fails (e.g. if this function is called from the main thread rather than a RendererThread).
|
||||
*/
|
||||
static RendererThreadBase* CurrentThread();
|
||||
|
||||
static RenderInstance* CurrentInstance();
|
||||
|
||||
signals:
|
||||
void FrameReady(rational time);
|
||||
|
||||
void FrameReadyWithTexture(rational time, RenderTexturePtr texture);
|
||||
|
||||
private:
|
||||
static RenderManager* instance_;
|
||||
|
||||
struct HashTimeMapping {
|
||||
rational time;
|
||||
QByteArray hash;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Internal function for generating the cache ID
|
||||
*/
|
||||
void GenerateCacheIDInternal();
|
||||
|
||||
/**
|
||||
* @brief Function called when there are frames in the queue to cache
|
||||
*
|
||||
* This function is NOT thread-safe and should only be called in the main thread.
|
||||
*/
|
||||
void CacheNext();
|
||||
|
||||
bool ShouldPushTexture(const rational &time);
|
||||
|
||||
/**
|
||||
* @brief Return the path of the cached image at this time
|
||||
*/
|
||||
QString CachePathName(const QByteArray &hash);
|
||||
|
||||
void DeferMap(const rational &time, const QByteArray &hash);
|
||||
|
||||
/**
|
||||
* @brief Internal list of RenderProcessThreads
|
||||
*/
|
||||
QVector<RendererProcessThreadPtr> threads_;
|
||||
|
||||
/**
|
||||
* @brief Internal variable that contains whether the Renderer has started or not
|
||||
*/
|
||||
bool started_;
|
||||
|
||||
int width_;
|
||||
int height_;
|
||||
|
||||
void CalculateEffectiveDimensions();
|
||||
|
||||
int divider_;
|
||||
int effective_width_;
|
||||
int effective_height_;
|
||||
|
||||
olive::PixelFormat format_;
|
||||
|
||||
olive::RenderMode mode_;
|
||||
|
||||
rational timebase_;
|
||||
double timebase_dbl_;
|
||||
|
||||
QLinkedList<rational> cache_queue_;
|
||||
QString cache_name_;
|
||||
qint64 cache_time_;
|
||||
QString cache_id_;
|
||||
|
||||
bool caching_;
|
||||
QVector<uchar*> cache_frame_load_buffer_;
|
||||
|
||||
QVector<RendererDownloadThreadPtr> download_threads_;
|
||||
int last_download_thread_;
|
||||
|
||||
QMap<rational, QByteArray> time_hash_map_;
|
||||
|
||||
QMutex cache_hash_list_mutex_;
|
||||
QVector<QByteArray> cache_hash_list_;
|
||||
|
||||
QList<HashTimeMapping> deferred_maps_;
|
||||
|
||||
NodeInput* texture_input_;
|
||||
|
||||
private slots:
|
||||
void ThreadCallback(RenderTexturePtr texture, const rational& time, const QByteArray& hash);
|
||||
|
||||
void ThreadRequestSibling(NodeDependency dep);
|
||||
|
||||
void ThreadSkippedFrame(const rational &time, const QByteArray &hash);
|
||||
|
||||
void DownloadThreadComplete(const QByteArray &hash);
|
||||
|
||||
};
|
||||
|
||||
#endif // RENDERMANAGER_H
|
||||
Reference in New Issue
Block a user