Compositor: Full frame output nodes

Adds full frame implementation to "Composite", "File Output" and
"Split Viewer" nodes.
The other nodes in "Output" submenu are implemented separately.
No functional changes.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D12091

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/compositor/operations/COM_SplitOperation.cc b/source/blender/compositor/operations/COM_SplitOperation.cc
index a4754de370d..d18ed3b8e14 100644
--- a/source/blender/compositor/operations/COM_SplitOperation.cc
+++ b/source/blender/compositor/operations/COM_SplitOperation.cc
@@ -79,4 +79,17 @@ void SplitOperation::determineResolution(unsigned int resolution[2],
   NodeOperation::determineResolution(resolution, preferredResolution);
 }
 
+void SplitOperation::update_memory_buffer_partial(MemoryBuffer *output,
+                                                  const rcti &area,
+                                                  Span<MemoryBuffer *> inputs)
+{
+  const int percent = this->m_xSplit ? this->m_splitPercentage * this->getWidth() / 100.0f :
+                                       this->m_splitPercentage * this->getHeight() / 100.0f;
+  const size_t elem_bytes = COM_data_type_bytes_len(getOutputSocket()->getDataType());
+  for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
+    const bool is_image1 = this->m_xSplit ? it.x > percent : it.y > percent;
+    memcpy(it.out, it.in(is_image1 ? 0 : 1), elem_bytes);
+  }
+}
+
 }  // namespace blender::compositor