Implement threaded partial display buffer update

This speeds up update of display buffer when affected area is big enough.

Mainly helpful for cases when doing long fast strokes when painting.

1 files changed, 10 insertions, 0 deletions

diff --git a/source/blender/imbuf/IMB_colormanagement.h b/source/blender/imbuf/IMB_colormanagement.h
index ab822f1cd55..52febe642a0 100644
--- a/source/blender/imbuf/IMB_colormanagement.h
+++ b/source/blender/imbuf/IMB_colormanagement.h
@@ -163,6 +163,16 @@ void IMB_partial_display_buffer_update(struct ImBuf *ibuf, const float *linear_b
                                        int xmin, int ymin, int xmax, int ymax,
                                        bool copy_display_to_byte_buffer);
 
+void IMB_partial_display_buffer_update_threaded(struct ImBuf *ibuf,
+                                                const float *linear_buffer,
+                                                const unsigned char *buffer_byte,
+                                                int stride,
+                                                int offset_x, int offset_y,
+                                                const struct ColorManagedViewSettings *view_settings,
+                                                const struct ColorManagedDisplaySettings *display_settings,
+                                                int xmin, int ymin, int xmax, int ymax,
+                                                bool copy_display_to_byte_buffer);
+
 void IMB_partial_display_buffer_update_delayed(struct ImBuf *ibuf, int xmin, int ymin, int xmax, int ymax);
 
 /* ** Pixel processor functions ** */