start implementation of multicam panel

2022-09-21 13:16:19 -07:00
parent 2dc2edf3e0
commit 487cd166d7
21 changed files with 347 additions and 25 deletions
@@ -0,0 +1,104 @@
+#include "multicamwidget.h"
+
+namespace olive {
+
+#define super ManagedDisplayWidget
+
+MulticamWidget::MulticamWidget(QWidget *parent) :
+  super{parent},
+  node_(nullptr),
+  cacher_(nullptr),
+  tex_(nullptr)
+{
+
+}
+
+void MulticamWidget::SetNode(MultiCamNode *n)
+{
+  if (node_ == n) {
+    return;
+  }
+
+  if (node_) {
+    // Disconnect
+  }
+
+  node_ = n;
+
+  if (node_) {
+    // Connect
+  }
+
+  SetTime(time_);
+}
+
+void MulticamWidget::SetTime(const rational &r)
+{
+  time_ = r;
+
+  if (node_) {
+    if (cacher_) {
+      int sources = node_->InputArraySize(node_->kSourcesInput);
+      watchers_.resize(sources);
+      textures_.resize(sources);
+
+      watchers_.fill(nullptr);
+      textures_.fill(nullptr);
+
+      for (int i=0; i<sources; i++) {
+        if (Node *n = node_->GetConnectedOutput(node_->kSourcesInput, 0)) {
+          auto w = new RenderTicketWatcher(this);
+          connect(w, &RenderTicketWatcher::Finished, this, &MulticamWidget::RenderedFrame);
+          w->SetTicket(cacher_->GetSingleFrame(n, time_, false));
+          watchers_[i] = w;
+        }
+      }
+    }
+  }
+}
+
+void MulticamWidget::OnInit()
+{
+  super::OnInit();
+
+  pipeline_ = renderer()->CreateNativeShader(ShaderCode(FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/multicam.frag"))));
+}
+
+void MulticamWidget::OnPaint()
+{
+  // Clear display surface
+  renderer()->ClearDestination();
+
+  if (tex_) {
+    ColorTransformJob job;
+    job.SetColorProcessor(color_service());
+    job.SetInputTexture(tex_);
+    job.SetInputAlphaAssociation(kAlphaNone);
+    renderer()->BlitColorManaged(job, GetViewportParams());
+  }
+}
+
+void MulticamWidget::OnDestroy()
+{
+  pipeline_.clear();
+  tex_ = nullptr;
+
+  super::OnDestroy();
+}
+
+void MulticamWidget::RenderedFrame()
+{
+  auto watcher = static_cast<RenderTicketWatcher*>(sender());
+  if (watcher->HasResult()) {
+    int index = watchers_.indexOf(watcher);
+
+    if (index != -1) {
+      if ((textures_[index] = watcher->Get().value<TexturePtr>())) {
+        update();
+      }
+    }
+  }
+  delete watcher;
+}
+
+}