Compositor: Full frame Bokeh Blur and Blur nodes

Adds full frame implementation to these nodes operations.

When enabling "extend bounds" node option, tiled implementation
result is slightly different because it's using `TranslateOperation`
with bilinear sampling for centering.
Full frame always uses nearest to don't lose image quality.
It has the disadvantage of causing image jiggling on backdrop
when switching size values as it's not pixel perfect.
This is fixed by rounding to even.

No functional changes.

Part of T88150.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D12167

1 files changed, 20 insertions, 1 deletions

diff --git a/source/blender/compositor/operations/COM_FastGaussianBlurOperation.h b/source/blender/compositor/operations/COM_FastGaussianBlurOperation.h
index c25afe6c4a4..f42fc76a119 100644
--- a/source/blender/compositor/operations/COM_FastGaussianBlurOperation.h
+++ b/source/blender/compositor/operations/COM_FastGaussianBlurOperation.h
@@ -38,8 +38,19 @@ class FastGaussianBlurOperation : public BlurBaseOperation {
 
   static void IIR_gauss(MemoryBuffer *src, float sigma, unsigned int channel, unsigned int xy);
   void *initializeTileData(rcti *rect) override;
+  void init_data() override;
   void deinitExecution() override;
   void initExecution() override;
+
+  void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
+  void update_memory_buffer_started(MemoryBuffer *output,
+                                    const rcti &area,
+                                    Span<MemoryBuffer *> inputs) override;
+  void update_memory_buffer_partial(MemoryBuffer *UNUSED(output),
+                                    const rcti &UNUSED(area),
+                                    Span<MemoryBuffer *> UNUSED(inputs)) override
+  {
+  }
 };
 
 enum {
@@ -48,7 +59,7 @@ enum {
   FAST_GAUSS_OVERLAY_MAX = 1,
 };
 
-class FastGaussianBlurValueOperation : public NodeOperation {
+class FastGaussianBlurValueOperation : public MultiThreadedOperation {
  private:
   float m_sigma;
   MemoryBuffer *m_iirgaus;
@@ -80,6 +91,14 @@ class FastGaussianBlurValueOperation : public NodeOperation {
   {
     this->m_overlay = overlay;
   }
+
+  void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
+  void update_memory_buffer_started(MemoryBuffer *output,
+                                    const rcti &area,
+                                    Span<MemoryBuffer *> inputs) override;
+  void update_memory_buffer_partial(MemoryBuffer *output,
+                                    const rcti &area,
+                                    Span<MemoryBuffer *> inputs) override;
 };
 
 }  // namespace blender::compositor