1 files changed, 82 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_MovieClipAttributeOperation.cc b/source/blender/compositor/operations/COM_MovieClipAttributeOperation.cc
new file mode 100644
index 00000000000..725aacc7d34
--- /dev/null
+++ b/source/blender/compositor/operations/COM_MovieClipAttributeOperation.cc
@@ -0,0 +1,82 @@
+/*
+ * 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 2
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright 2011, Blender Foundation.
+ */
+
+#include "COM_MovieClipAttributeOperation.h"
+
+#include "BKE_movieclip.h"
+#include "BKE_tracking.h"
+
+MovieClipAttributeOperation::MovieClipAttributeOperation()
+{
+  this->addOutputSocket(COM_DT_VALUE);
+  this->m_framenumber = 0;
+  this->m_attribute = MCA_X;
+  this->m_invert = false;
+}
+
+void MovieClipAttributeOperation::initExecution()
+{
+  if (this->m_clip == nullptr) {
+    return;
+  }
+  float loc[2], scale, angle;
+  loc[0] = 0.0f;
+  loc[1] = 0.0f;
+  scale = 1.0f;
+  angle = 0.0f;
+  int clip_framenr = BKE_movieclip_remap_scene_to_clip_frame(this->m_clip, this->m_framenumber);
+  BKE_tracking_stabilization_data_get(
+      this->m_clip, clip_framenr, getWidth(), getHeight(), loc, &scale, &angle);
+  switch (this->m_attribute) {
+    case MCA_SCALE:
+      this->m_value = scale;
+      break;
+    case MCA_ANGLE:
+      this->m_value = angle;
+      break;
+    case MCA_X:
+      this->m_value = loc[0];
+      break;
+    case MCA_Y:
+      this->m_value = loc[1];
+      break;
+  }
+  if (this->m_invert) {
+    if (this->m_attribute != MCA_SCALE) {
+      this->m_value = -this->m_value;
+    }
+    else {
+      this->m_value = 1.0f / this->m_value;
+    }
+  }
+}
+
+void MovieClipAttributeOperation::executePixelSampled(float output[4],
+                                                      float /*x*/,
+                                                      float /*y*/,
+                                                      PixelSampler /*sampler*/)
+{
+  output[0] = this->m_value;
+}
+
+void MovieClipAttributeOperation::determineResolution(unsigned int resolution[2],
+                                                      unsigned int preferredResolution[2])
+{
+  resolution[0] = preferredResolution[0];
+  resolution[1] = preferredResolution[1];
+}