Compositor: Full frame transform nodes

Adds full frame implementation to "Rotate", "Transform" and
"Stabilize2D" nodes.
To avoid sampling twice when concatenating scale and rotate
operations, a `TransformOperation` is implemented with all
the functionality.
The nodes have no functional changes.

Part of T88150.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D12165

1 files changed, 7 insertions, 6 deletions

diff --git a/source/blender/compositor/operations/COM_ScaleOperation.cc b/source/blender/compositor/operations/COM_ScaleOperation.cc
index 5410b2c832a..ef34bc7bee6 100644
--- a/source/blender/compositor/operations/COM_ScaleOperation.cc
+++ b/source/blender/compositor/operations/COM_ScaleOperation.cc
@@ -74,17 +74,18 @@ float ScaleOperation::get_constant_scale_y()
   return get_constant_scale(2, get_relative_scale_y_factor());
 }
 
-BLI_INLINE float scale_coord(const int coord, const float center, const float relative_scale)
+void ScaleOperation::scale_area(
+    rcti &rect, float center_x, float center_y, float scale_x, float scale_y)
 {
-  return center + (coord - center) / relative_scale;
+  rect.xmin = scale_coord(rect.xmin, center_x, scale_x);
+  rect.xmax = scale_coord(rect.xmax, center_x, scale_x);
+  rect.ymin = scale_coord(rect.ymin, center_y, scale_y);
+  rect.ymax = scale_coord(rect.ymax, center_y, scale_y);
 }
 
 void ScaleOperation::scale_area(rcti &rect, float scale_x, float scale_y)
 {
-  rect.xmin = scale_coord(rect.xmin, m_centerX, scale_x);
-  rect.xmax = scale_coord(rect.xmax, m_centerX, scale_x);
-  rect.ymin = scale_coord(rect.ymin, m_centerY, scale_y);
-  rect.ymax = scale_coord(rect.ymax, m_centerY, scale_y);
+  scale_area(rect, m_centerX, m_centerY, scale_x, scale_y);
 }
 
 void ScaleOperation::init_data()