1 files changed, 78 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_SplitOperation.cc b/source/blender/compositor/operations/COM_SplitOperation.cc
new file mode 100644
index 00000000000..fb6214c7522
--- /dev/null
+++ b/source/blender/compositor/operations/COM_SplitOperation.cc
@@ -0,0 +1,78 @@
+/*
+ * 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_SplitOperation.h"
+#include "BKE_image.h"
+#include "BLI_listbase.h"
+#include "BLI_math_color.h"
+#include "BLI_math_vector.h"
+#include "BLI_utildefines.h"
+#include "MEM_guardedalloc.h"
+
+#include "IMB_imbuf.h"
+#include "IMB_imbuf_types.h"
+
+SplitOperation::SplitOperation()
+{
+  this->addInputSocket(COM_DT_COLOR);
+  this->addInputSocket(COM_DT_COLOR);
+  this->addOutputSocket(COM_DT_COLOR);
+  this->m_image1Input = nullptr;
+  this->m_image2Input = nullptr;
+}
+
+void SplitOperation::initExecution()
+{
+  // When initializing the tree during initial load the width and height can be zero.
+  this->m_image1Input = getInputSocketReader(0);
+  this->m_image2Input = getInputSocketReader(1);
+}
+
+void SplitOperation::deinitExecution()
+{
+  this->m_image1Input = nullptr;
+  this->m_image2Input = nullptr;
+}
+
+void SplitOperation::executePixelSampled(float output[4],
+                                         float x,
+                                         float y,
+                                         PixelSampler /*sampler*/)
+{
+  int perc = this->m_xSplit ? this->m_splitPercentage * this->getWidth() / 100.0f :
+                              this->m_splitPercentage * this->getHeight() / 100.0f;
+  bool image1 = this->m_xSplit ? x > perc : y > perc;
+  if (image1) {
+    this->m_image1Input->readSampled(output, x, y, COM_PS_NEAREST);
+  }
+  else {
+    this->m_image2Input->readSampled(output, x, y, COM_PS_NEAREST);
+  }
+}
+
+void SplitOperation::determineResolution(unsigned int resolution[2],
+                                         unsigned int preferredResolution[2])
+{
+  unsigned int tempPreferredResolution[2] = {0, 0};
+  unsigned int tempResolution[2];
+
+  this->getInputSocket(0)->determineResolution(tempResolution, tempPreferredResolution);
+  this->setResolutionInputSocketIndex((tempResolution[0] && tempResolution[1]) ? 0 : 1);
+
+  NodeOperation::determineResolution(resolution, preferredResolution);
+}