Compositor: Full frame input nodes

Adds full frame implementation to "Bokeh Image" node, "Track Position"
node, `SetVectorOperation` and `MovieClipAttribute`.
The other nodes in "Input" submenu are implemented separately.

`MovieClipAttribute` needs resolution to calculate its constant value, it can't be constant folded,
which requires it to be a `ConstantOperation`. Now `ConstantOperation` contemplate this case
and any operation that is always constant without depending on inputs should implement it.
If in the future an operation needs to get an input constant element during
`determineResolution` it must first determine its input resolution.

The nodes have no functional changes.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D12090

4 files changed, 20 insertions, 6 deletions

diff --git a/source/blender/compositor/intern/COM_BufferOperation.cc b/source/blender/compositor/intern/COM_BufferOperation.cc
index 90c97f2a9c7..e1f566b19db 100644
--- a/source/blender/compositor/intern/COM_BufferOperation.cc
+++ b/source/blender/compositor/intern/COM_BufferOperation.cc
@@ -32,6 +32,7 @@ BufferOperation::BufferOperation(MemoryBuffer *buffer, DataType data_type)
   setResolution(resolution);
   addOutputSocket(data_type);
   flags.is_constant_operation = buffer_->is_a_single_elem();
+  flags.is_fullframe_operation = false;
 }
 
 const float *BufferOperation::get_constant_elem()
diff --git a/source/blender/compositor/intern/COM_ConstantFolder.cc b/source/blender/compositor/intern/COM_ConstantFolder.cc
index 5b48ff8fc08..445a9ce7433 100644
--- a/source/blender/compositor/intern/COM_ConstantFolder.cc
+++ b/source/blender/compositor/intern/COM_ConstantFolder.cc
@@ -44,7 +44,9 @@ static bool is_constant_foldable(NodeOperation *operation)
 {
   if (operation->get_flags().can_be_constant && !operation->get_flags().is_constant_operation) {
     for (int i = 0; i < operation->getNumberOfInputSockets(); i++) {
-      if (!operation->get_input_operation(i)->get_flags().is_constant_operation) {
+      NodeOperation *input = operation->get_input_operation(i);
+      if (!input->get_flags().is_constant_operation ||
+          !static_cast<ConstantOperation *>(input)->can_get_constant_elem()) {
         return false;
       }
     }
diff --git a/source/blender/compositor/intern/COM_Debug.cc b/source/blender/compositor/intern/COM_Debug.cc
index 5443974cbb0..a0333cf96cf 100644
--- a/source/blender/compositor/intern/COM_Debug.cc
+++ b/source/blender/compositor/intern/COM_Debug.cc
@@ -178,21 +178,27 @@ int DebugInfo::graphviz_operation(const ExecutionSystem *system,
       }
       len += snprintf(str + len, maxlen > len ? maxlen - len : 0, "<OUT_%p>", socket);
       switch (socket->getDataType()) {
-        case DataType::Value:
-          if (typeid(*operation) == typeid(SetValueOperation)) {
-            const float value = ((SetValueOperation *)operation)->getValue();
+        case DataType::Value: {
+          ConstantOperation *constant = operation->get_flags().is_constant_operation ?
+                                            static_cast<ConstantOperation *>(operation) :
+                                            nullptr;
+          if (constant && constant->can_get_constant_elem()) {
+            const float value = *constant->get_constant_elem();
             len += snprintf(str + len, maxlen > len ? maxlen - len : 0, "Value\\n%12.4g", value);
           }
           else {
             len += snprintf(str + len, maxlen > len ? maxlen - len : 0, "Value");
           }
           break;
-        case DataType::Vector:
+        }
+        case DataType::Vector: {
           len += snprintf(str + len, maxlen > len ? maxlen - len : 0, "Vector");
           break;
-        case DataType::Color:
+        }
+        case DataType::Color: {
           len += snprintf(str + len, maxlen > len ? maxlen - len : 0, "Color");
           break;
+        }
       }
     }
     len += snprintf(str + len, maxlen > len ? maxlen - len : 0, "}");
diff --git a/source/blender/compositor/intern/COM_MemoryBuffer.h b/source/blender/compositor/intern/COM_MemoryBuffer.h
index ae12c444dc1..310e87b6a4b 100644
--- a/source/blender/compositor/intern/COM_MemoryBuffer.h
+++ b/source/blender/compositor/intern/COM_MemoryBuffer.h
@@ -260,6 +260,11 @@ class MemoryBuffer {
     return this->m_num_channels;
   }
 
+  uint8_t get_elem_bytes_len() const
+  {
+    return this->m_num_channels * sizeof(float);
+  }
+
   /**
    * Get all buffer elements as a range with no offsets.
    */