[Bf-blender-cvs] [1a0b2ef90f1] compositor-full-frame: Compositor: Full frame Defocus node

[Manuel Castilla]

Commit: 1a0b2ef90f187a457f6ae3c4b9320ed02ae23b16
Author: Manuel Castilla
Date:   Tue Aug 10 18:44:15 2021 +0200
Branches: compositor-full-frame
https://developer.blender.org/rB1a0b2ef90f187a457f6ae3c4b9320ed02ae23b16

Compositor: Full frame Defocus node

===================================================================

M	source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cc
M	source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.h

===================================================================

diff --git a/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cc b/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cc
index 57027c11949..258310af1de 100644
--- a/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cc
+++ b/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cc
@@ -116,4 +116,31 @@ void ConvertDepthToRadiusOperation::deinitExecution()
   this->m_inputOperation = nullptr;
 }
 
+void ConvertDepthToRadiusOperation::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 z = *it.in(0);
+    if (z == 0.0f) {
+      *it.out = 0.0f;
+      continue;
+    }
+
+    const float inv_z = (1.0f / z);
+
+    /* bug T6656 part 2b, do not re-scale. */
+#if 0
+    bcrad = 0.5f * fabs(aperture * (dof_sp * (cam_invfdist - iZ) - 1.0f));
+    // scale crad back to original maximum and blend
+    crad->rect[px] = bcrad + wts->rect[px] * (scf * crad->rect[px] - bcrad);
+#endif
+    const float radius = 0.5f *
+                         fabsf(m_aperture * (m_dof_sp * (m_inverseFocalDistance - inv_z) - 1.0f));
+    /* 'bug' T6615, limit minimum radius to 1 pixel,
+     * not really a solution, but somewhat mitigates the problem. */
+    *it.out = CLAMPIS(radius, 0.0f, m_maxRadius);
+  }
+}
+
 }  // namespace blender::compositor
diff --git a/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.h b/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.h
index 1f4e856b128..3d163843d06 100644
--- a/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.h
+++ b/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.h
@@ -19,7 +19,7 @@
 #pragma once
 
 #include "COM_FastGaussianBlurOperation.h"
-#include "COM_NodeOperation.h"
+#include "COM_MultiThreadedOperation.h"
 #include "DNA_object_types.h"
 
 namespace blender::compositor {
@@ -28,7 +28,7 @@ namespace blender::compositor {
  * this program converts an input color to an output value.
  * it assumes we are in sRGB color space.
  */
-class ConvertDepthToRadiusOperation : public NodeOperation {
+class ConvertDepthToRadiusOperation : public MultiThreadedOperation {
  private:
   /**
    * Cached reference to the inputProgram
@@ -83,6 +83,10 @@ class ConvertDepthToRadiusOperation : public NodeOperation {
   {
     this->m_blurPostOperation = operation;
   }
+
+  void update_memory_buffer_partial(MemoryBuffer *output,
+                                    const rcti &area,
+                                    Span<MemoryBuffer *> inputs) override;
 };
 
 }  // namespace blender::compositor