Compositor: Full frame color nodes

Adds full frame implementation to "Alpha Over",
"Hue Saturation Value", "Invert", "Tonemap" and "ZCombine" nodes.
The other nodes in "Color" submenu are implemented separately.
No functional changes.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D12092

1 files changed, 23 insertions, 0 deletions

diff --git a/source/blender/compositor/operations/COM_ChangeHSVOperation.cc b/source/blender/compositor/operations/COM_ChangeHSVOperation.cc
index eee007ce9e6..1e3e7806968 100644
--- a/source/blender/compositor/operations/COM_ChangeHSVOperation.cc
+++ b/source/blender/compositor/operations/COM_ChangeHSVOperation.cc
@@ -28,6 +28,7 @@ ChangeHSVOperation::ChangeHSVOperation()
   this->addInputSocket(DataType::Value);
   this->addOutputSocket(DataType::Color);
   this->m_inputOperation = nullptr;
+  this->flags.can_be_constant = true;
 }
 
 void ChangeHSVOperation::initExecution()
@@ -71,4 +72,26 @@ void ChangeHSVOperation::executePixelSampled(float output[4],
   output[3] = inputColor1[3];
 }
 
+void ChangeHSVOperation::update_memory_buffer_partial(MemoryBuffer *output,
+                                                      const rcti &area,
+                                                      Span<MemoryBuffer *> inputs)
+{
+  for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
+    const float *color = it.in(0);
+    const float hue = *it.in(1);
+    it.out[0] = color[0] + (hue - 0.5f);
+    if (it.out[0] > 1.0f) {
+      it.out[0] -= 1.0f;
+    }
+    else if (it.out[0] < 0.0f) {
+      it.out[0] += 1.0f;
+    }
+    const float saturation = *it.in(2);
+    const float value = *it.in(3);
+    it.out[1] = color[1] * saturation;
+    it.out[2] = color[2] * value;
+    it.out[3] = color[3];
+  }
+}
+
 }  // namespace blender::compositor