Merge branch 'blender-v3.1-release'

12 files changed, 275 insertions, 55 deletions

diff --git a/source/blender/blenkernel/intern/image.c b/source/blender/blenkernel/intern/image.c
index fa63f99d3f1..817e7bb9685 100644
--- a/source/blender/blenkernel/intern/image.c
+++ b/source/blender/blenkernel/intern/image.c
@@ -3569,6 +3569,7 @@ static void image_tag_reload(Image *ima, ID *iuser_id, ImageUser *iuser, void *c
       /* Must copy image user changes to CoW data-block. */
       DEG_id_tag_update(iuser_id, ID_RECALC_COPY_ON_WRITE);
     }
+    BKE_image_partial_update_mark_full_update(ima);
   }
 }
 
diff --git a/source/blender/blenkernel/intern/image_gpu.cc b/source/blender/blenkernel/intern/image_gpu.cc
index 444cbbe4bf9..c4a43d8b023 100644
--- a/source/blender/blenkernel/intern/image_gpu.cc
+++ b/source/blender/blenkernel/intern/image_gpu.cc
@@ -322,19 +322,25 @@ static void image_gpu_texture_partial_update_changes_available(
     Image *image, PartialUpdateChecker<ImageTileData>::CollectResult &changes)
 {
   while (changes.get_next_change() == ePartialUpdateIterResult::ChangeAvailable) {
-    const int tile_offset_x = changes.changed_region.region.xmin;
-    const int tile_offset_y = changes.changed_region.region.ymin;
-    const int tile_width = min_ii(changes.tile_data.tile_buffer->x,
-                                  BLI_rcti_size_x(&changes.changed_region.region));
-    const int tile_height = min_ii(changes.tile_data.tile_buffer->y,
-                                   BLI_rcti_size_y(&changes.changed_region.region));
+    /* Calculate the clipping region with the tile buffer.
+     * TODO(jbakker): should become part of ImageTileData to deduplicate with image engine. */
+    rcti buffer_rect;
+    BLI_rcti_init(
+        &buffer_rect, 0, changes.tile_data.tile_buffer->x, 0, changes.tile_data.tile_buffer->y);
+    rcti clipped_update_region;
+    const bool has_overlap = BLI_rcti_isect(
+        &buffer_rect, &changes.changed_region.region, &clipped_update_region);
+    if (!has_overlap) {
+      continue;
+    }
+
     image_update_gputexture_ex(image,
                                changes.tile_data.tile,
                                changes.tile_data.tile_buffer,
-                               tile_offset_x,
-                               tile_offset_y,
-                               tile_width,
-                               tile_height);
+                               clipped_update_region.xmin,
+                               clipped_update_region.ymin,
+                               BLI_rcti_size_x(&clipped_update_region),
+                               BLI_rcti_size_y(&clipped_update_region));
   }
 }
 
diff --git a/source/blender/blenkernel/intern/image_partial_update.cc b/source/blender/blenkernel/intern/image_partial_update.cc
index 9d5635f49ab..4606a14ab69 100644
--- a/source/blender/blenkernel/intern/image_partial_update.cc
+++ b/source/blender/blenkernel/intern/image_partial_update.cc
@@ -198,8 +198,8 @@ struct TileChangeset {
     tile_width = image_buffer->x;
     tile_height = image_buffer->y;
 
-    int chunk_x_len = tile_width / CHUNK_SIZE;
-    int chunk_y_len = tile_height / CHUNK_SIZE;
+    int chunk_x_len = (tile_width + CHUNK_SIZE - 1) / CHUNK_SIZE;
+    int chunk_y_len = (tile_height + CHUNK_SIZE - 1) / CHUNK_SIZE;
     init_chunks(chunk_x_len, chunk_y_len);
     return true;
   }
diff --git a/source/blender/blenkernel/intern/node.cc b/source/blender/blenkernel/intern/node.cc
index 876ccc5351c..96bfcb0311b 100644
--- a/source/blender/blenkernel/intern/node.cc
+++ b/source/blender/blenkernel/intern/node.cc
@@ -1952,6 +1952,8 @@ void nodeRemoveAllSockets(bNodeTree *ntree, bNode *node)
     }
   }
 
+  BLI_freelistN(&node->internal_links);
+
   LISTBASE_FOREACH_MUTABLE (bNodeSocket *, sock, &node->inputs) {
     node_socket_free(sock, true);
     MEM_freeN(sock);
diff --git a/source/blender/draw/engines/image/image_buffer_cache.hh b/source/blender/draw/engines/image/image_buffer_cache.hh
new file mode 100644
index 00000000000..ef11551c879
--- /dev/null
+++ b/source/blender/draw/engines/image/image_buffer_cache.hh
@@ -0,0 +1,131 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright 2022, Blender Foundation.
+ */
+
+/** \file
+ * \ingroup draw_engine
+ */
+
+#pragma once
+
+#include "BLI_vector.hh"
+
+#include "IMB_imbuf.h"
+#include "IMB_imbuf_types.h"
+
+struct FloatImageBuffer {
+  ImBuf *source_buffer = nullptr;
+  ImBuf *float_buffer = nullptr;
+  bool is_used = true;
+
+  FloatImageBuffer(ImBuf *source_buffer, ImBuf *float_buffer)
+      : source_buffer(source_buffer), float_buffer(float_buffer)
+  {
+  }
+
+  FloatImageBuffer(FloatImageBuffer &&other) noexcept
+  {
+    source_buffer = other.source_buffer;
+    float_buffer = other.float_buffer;
+    is_used = other.is_used;
+    other.source_buffer = nullptr;
+    other.float_buffer = nullptr;
+  }
+
+  virtual ~FloatImageBuffer()
+  {
+    IMB_freeImBuf(float_buffer);
+    float_buffer = nullptr;
+    source_buffer = nullptr;
+  }
+
+  FloatImageBuffer &operator=(FloatImageBuffer &&other) noexcept
+  {
+    this->source_buffer = other.source_buffer;
+    this->float_buffer = other.float_buffer;
+    is_used = other.is_used;
+    other.source_buffer = nullptr;
+    other.float_buffer = nullptr;
+    return *this;
+  }
+};
+
+struct FloatBufferCache {
+ private:
+  blender::Vector<FloatImageBuffer> cache_;
+
+ public:
+  ImBuf *ensure_float_buffer(ImBuf *image_buffer)
+  {
+    /* Check if we can use the float buffer of the given image_buffer. */
+    if (image_buffer->rect_float != nullptr) {
+      return image_buffer;
+    }
+
+    /* Do we have a cached float buffer. */
+    for (FloatImageBuffer &item : cache_) {
+      if (item.source_buffer == image_buffer) {
+        item.is_used = true;
+        return item.float_buffer;
+      }
+    }
+
+    /* Generate a new float buffer. */
+    IMB_float_from_rect(image_buffer);
+    ImBuf *new_imbuf = IMB_allocImBuf(image_buffer->x, image_buffer->y, image_buffer->planes, 0);
+    new_imbuf->rect_float = image_buffer->rect_float;
+    new_imbuf->flags |= IB_rectfloat;
+    new_imbuf->mall |= IB_rectfloat;
+    image_buffer->rect_float = nullptr;
+    image_buffer->flags &= ~IB_rectfloat;
+    image_buffer->mall &= ~IB_rectfloat;
+
+    cache_.append(FloatImageBuffer(image_buffer, new_imbuf));
+    return new_imbuf;
+  }
+
+  void reset_usage_flags()
+  {
+    for (FloatImageBuffer &buffer : cache_) {
+      buffer.is_used = false;
+    }
+  }
+
+  void mark_used(const ImBuf *image_buffer)
+  {
+    for (FloatImageBuffer &item : cache_) {
+      if (item.source_buffer == image_buffer) {
+        item.is_used = true;
+        return;
+      }
+    }
+  }
+
+  void remove_unused_buffers()
+  {
+    for (int64_t i = cache_.size() - 1; i >= 0; i--) {
+      if (!cache_[i].is_used) {
+        cache_.remove_and_reorder(i);
+      }
+    }
+  }
+
+  void clear()
+  {
+    cache_.clear();
+  }
+};
diff --git a/source/blender/draw/engines/image/image_drawing_mode.hh b/source/blender/draw/engines/image/image_drawing_mode.hh
index b9de0838fef..c727fbcd98f 100644
--- a/source/blender/draw/engines/image/image_drawing_mode.hh
+++ b/source/blender/draw/engines/image/image_drawing_mode.hh
@@ -157,6 +157,7 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
         if (tile_buffer == nullptr) {
           continue;
         }
+        instance_data.float_buffers.mark_used(tile_buffer);
         BKE_image_release_ibuf(image, tile_buffer, lock);
 
         DRWShadingGroup *shsub = DRW_shgroup_create_sub(shgrp);
@@ -184,12 +185,14 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
     switch (changes.get_result_code()) {
       case ePartialUpdateCollectResult::FullUpdateNeeded:
         instance_data.mark_all_texture_slots_dirty();
+        instance_data.float_buffers.clear();
         break;
       case ePartialUpdateCollectResult::NoChangesDetected:
         break;
       case ePartialUpdateCollectResult::PartialChangesDetected:
         /* Partial update when wrap repeat is enabled is not supported. */
         if (instance_data.flags.do_tile_drawing) {
+          instance_data.float_buffers.clear();
           instance_data.mark_all_texture_slots_dirty();
         }
         else {
@@ -200,6 +203,34 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
     do_full_update_for_dirty_textures(instance_data, image_user);
   }
 
+  /**
+   * Update the float buffer in the region given by the partial update checker.
+   */
+  void do_partial_update_float_buffer(
+      ImBuf *float_buffer, PartialUpdateChecker<ImageTileData>::CollectResult &iterator) const
+  {
+    ImBuf *src = iterator.tile_data.tile_buffer;
+    BLI_assert(float_buffer->rect_float != nullptr);
+    BLI_assert(float_buffer->rect == nullptr);
+    BLI_assert(src->rect_float == nullptr);
+    BLI_assert(src->rect != nullptr);
+
+    /* Calculate the overlap between the updated region and the buffer size. Partial Update Checker
+     * always returns a tile (256x256). Which could lay partially outside the buffer when using
+     * different resolutions.
+     */
+    rcti buffer_rect;
+    BLI_rcti_init(&buffer_rect, 0, float_buffer->x, 0, float_buffer->y);
+    rcti clipped_update_region;
+    const bool has_overlap = BLI_rcti_isect(
+        &buffer_rect, &iterator.changed_region.region, &clipped_update_region);
+    if (!has_overlap) {
+      return;
+    }
+
+    IMB_float_from_rect_ex(float_buffer, src, &clipped_update_region);
+  }
+
   void do_partial_update(PartialUpdateChecker<ImageTileData>::CollectResult &iterator,
                          IMAGE_InstanceData &instance_data) const
   {
@@ -208,7 +239,11 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
       if (iterator.tile_data.tile_buffer == nullptr) {
         continue;
       }
-      const bool do_free_float_buffer = ensure_float_buffer(*iterator.tile_data.tile_buffer);
+      ImBuf *tile_buffer = ensure_float_buffer(instance_data, iterator.tile_data.tile_buffer);
+      if (tile_buffer != iterator.tile_data.tile_buffer) {
+        do_partial_update_float_buffer(tile_buffer, iterator);
+      }
+
       const float tile_width = static_cast<float>(iterator.tile_data.tile_buffer->x);
       const float tile_height = static_cast<float>(iterator.tile_data.tile_buffer->y);
 
@@ -283,7 +318,6 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
             &extracted_buffer, texture_region_width, texture_region_height, 32, IB_rectfloat);
 
         int offset = 0;
-        ImBuf *tile_buffer = iterator.tile_data.tile_buffer;
         for (int y = gpu_texture_region_to_update.ymin; y < gpu_texture_region_to_update.ymax;
              y++) {
           float yf = y / (float)texture_height;
@@ -314,10 +348,6 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
                                0);
         imb_freerectImbuf_all(&extracted_buffer);
       }
-
-      if (do_free_float_buffer) {
-        imb_freerectfloatImBuf(iterator.tile_data.tile_buffer);
-      }
     }
   }
 
@@ -376,16 +406,12 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
    * rect_float as the reference-counter isn't 0. To work around this we destruct any created local
    * buffers ourself.
    */
-  bool ensure_float_buffer(ImBuf &image_buffer) const
+  ImBuf *ensure_float_buffer(IMAGE_InstanceData &instance_data, ImBuf *image_buffer) const
   {
-    if (image_buffer.rect_float == nullptr) {
-      IMB_float_from_rect(&image_buffer);
-      return true;
-    }
-    return false;
+    return instance_data.float_buffers.ensure_float_buffer(image_buffer);
   }
 
-  void do_full_update_texture_slot(const IMAGE_InstanceData &instance_data,
+  void do_full_update_texture_slot(IMAGE_InstanceData &instance_data,
                                    const TextureInfo &texture_info,
                                    ImBuf &texture_buffer,
                                    ImBuf &tile_buffer,
@@ -393,7 +419,7 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
   {
     const int texture_width = texture_buffer.x;
     const int texture_height = texture_buffer.y;
-    const bool do_free_float_buffer = ensure_float_buffer(tile_buffer);
+    ImBuf *float_tile_buffer = ensure_float_buffer(instance_data, &tile_buffer);
 
     /* IMB_transform works in a non-consistent space. This should be documented or fixed!.
      * Construct a variant of the info_uv_to_texture that adds the texel space
@@ -424,16 +450,12 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
       transform_mode = IMB_TRANSFORM_MODE_CROP_SRC;
     }
 
-    IMB_transform(&tile_buffer,
+    IMB_transform(float_tile_buffer,
                   &texture_buffer,
                   transform_mode,
                   IMB_FILTER_NEAREST,
                   uv_to_texel,
                   crop_rect_ptr);
-
-    if (do_free_float_buffer) {
-      imb_freerectfloatImBuf(&tile_buffer);
-    }
   }
 
  public:
@@ -452,6 +474,7 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
 
     instance_data->partial_update.ensure_image(image);
     instance_data->clear_dirty_flag();
+    instance_data->float_buffers.reset_usage_flags();
 
     /* Step: Find out which screen space textures are needed to draw on the screen. Remove the
      * screen space textures that aren't needed. */
@@ -472,8 +495,10 @@ template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractD
     add_shgroups(instance_data);
   }
 
-  void draw_finish(IMAGE_Data *UNUSED(vedata)) const override
+  void draw_finish(IMAGE_Data *vedata) const override
   {
+    IMAGE_InstanceData *instance_data = vedata->instance_data;
+    instance_data->float_buffers.remove_unused_buffers();
   }
 
   void draw_scene(IMAGE_Data *vedata) const override
diff --git a/source/blender/draw/engines/image/image_instance_data.hh b/source/blender/draw/engines/image/image_instance_data.hh
index be846799293..a7ae8666968 100644
--- a/source/blender/draw/engines/image/image_instance_data.hh
+++ b/source/blender/draw/engines/image/image_instance_data.hh
@@ -8,6 +8,7 @@
 #pragma once
 
 #include "image_batches.hh"
+#include "image_buffer_cache.hh"
 #include "image_partial_updater.hh"
 #include "image_private.hh"
 #include "image_shader_params.hh"
@@ -48,11 +49,18 @@ struct IMAGE_InstanceData {
     DRWPass *depth_pass;
   } passes;
 
+  /**
+   * Cache containing the float buffers when drawing byte images.
+   */
+  FloatBufferCache float_buffers;
+
   /** \brief Transform matrix to convert a normalized screen space coordinates to texture space. */
   float ss_to_texture[4][4];
   TextureInfo texture_infos[SCREEN_SPACE_DRAWING_MODE_TEXTURE_LEN];
 
  public:
+  virtual ~IMAGE_InstanceData() = default;
+
   void clear_dirty_flag()
   {
     reset_dirty_flag(false);
@@ -102,6 +110,7 @@ struct IMAGE_InstanceData {
     if (last_usage != usage) {
       last_usage = usage;
       reset_dirty_flag(true);
+      float_buffers.clear();
     }
   }
 
diff --git a/source/blender/draw/engines/image/image_usage.hh b/source/blender/draw/engines/image/image_usage.hh
index 2f3f0d23b6a..0643cc87304 100644
--- a/source/blender/draw/engines/image/image_usage.hh
+++ b/source/blender/draw/engines/image/image_usage.hh
@@ -23,6 +23,8 @@ struct ImageUsage {
   /** IMA_ALPHA_* */
   char alpha_mode;
 
+  const void *last_image = nullptr;
+
   ImageUsage() = default;
   ImageUsage(const struct Image *image, const struct ImageUser *image_user)
   {
@@ -31,6 +33,7 @@ struct ImageUsage {
     view = image_user ? image_user->multi_index : 0;
     colorspace_settings = image->colorspace_settings;
     alpha_mode = image->alpha_mode;
+    last_image = static_cast<const void *>(image);
   }
 
   bool operator==(const ImageUsage &other) const
diff --git a/source/blender/editors/object/object_bake_api.c b/source/blender/editors/object/object_bake_api.c
index 7f4af43eb30..3b40a10eb2a 100644
--- a/source/blender/editors/object/object_bake_api.c
+++ b/source/blender/editors/object/object_bake_api.c
@@ -301,6 +301,7 @@ static void bake_targets_refresh(BakeTargets *targets)
     Image *ima = targets->images[i].image;
 
     if (ima) {
+      BKE_image_partial_update_mark_full_update(ima);
       LISTBASE_FOREACH (ImageTile *, tile, &ima->tiles) {
         BKE_image_free_gputextures(ima);
         DEG_id_tag_update(&ima->id, 0);
diff --git a/source/blender/imbuf/IMB_imbuf.h b/source/blender/imbuf/IMB_imbuf.h
index 23b9c85bd5b..6b35e84ca51 100644
--- a/source/blender/imbuf/IMB_imbuf.h
+++ b/source/blender/imbuf/IMB_imbuf.h
@@ -560,6 +560,9 @@ bool IMB_alpha_affects_rgb(const struct ImBuf *ibuf);
  * Create char buffer, color corrected if necessary, for ImBufs that lack one.
  */
 void IMB_rect_from_float(struct ImBuf *ibuf);
+void IMB_float_from_rect_ex(struct ImBuf *dst,
+                            const struct ImBuf *src,
+                            const struct rcti *region_to_update);
 void IMB_float_from_rect(struct ImBuf *ibuf);
 /**
  * No profile conversion.
diff --git a/source/blender/imbuf/intern/divers.c b/source/blender/imbuf/intern/divers.c
index 0bf50937674..588c92d748d 100644
--- a/source/blender/imbuf/intern/divers.c
+++ b/source/blender/imbuf/intern/divers.c
@@ -6,6 +6,7 @@
  */
 
 #include "BLI_math.h"
+#include "BLI_rect.h"
 #include "BLI_utildefines.h"
 
 #include "IMB_filter.h"
@@ -752,6 +753,61 @@ void IMB_rect_from_float(ImBuf *ibuf)
   ibuf->userflags &= ~IB_RECT_INVALID;
 }
 
+void IMB_float_from_rect_ex(struct ImBuf *dst,
+                            const struct ImBuf *src,
+                            const rcti *region_to_update)
+{
+  BLI_assert_msg(dst->rect_float != NULL,
+                 "Destination buffer should have a float buffer assigned.");
+  BLI_assert_msg(src->rect != NULL, "Source buffer should have a byte buffer assigned.");
+  BLI_assert_msg(dst->x == src->x, "Source and destination buffer should have the same dimension");
+  BLI_assert_msg(dst->y == src->y, "Source and destination buffer should have the same dimension");
+  BLI_assert_msg(dst->channels = 4, "Destination buffer should have 4 channels.");
+  BLI_assert_msg(region_to_update->xmin >= 0,
+                 "Region to update should be clipped to the given buffers.");
+  BLI_assert_msg(region_to_update->ymin >= 0,
+                 "Region to update should be clipped to the given buffers.");
+  BLI_assert_msg(region_to_update->xmax <= dst->x,
+                 "Region to update should be clipped to the given buffers.");
+  BLI_assert_msg(region_to_update->ymax <= dst->y,
+                 "Region to update should be clipped to the given buffers.");
+
+  float *rect_float = dst->rect_float;
+  rect_float += (region_to_update->xmin + region_to_update->ymin * dst->x) * 4;
+  unsigned char *rect = (unsigned char *)src->rect;
+  rect += (region_to_update->xmin + region_to_update->ymin * dst->x) * 4;
+  const int region_width = BLI_rcti_size_x(region_to_update);
+  const int region_height = BLI_rcti_size_y(region_to_update);
+
+  /* Convert byte buffer to float buffer without color or alpha conversion. */
+  IMB_buffer_float_from_byte(rect_float,
+                             rect,
+                             IB_PROFILE_SRGB,
+                             IB_PROFILE_SRGB,
+                             false,
+                             region_width,
+                             region_height,
+                             src->x,
+                             dst->x);
+
+  /* Perform color space conversion from rect color space to linear. */
+  float *float_ptr = rect_float;
+  for (int i = 0; i < region_height; i++) {
+    IMB_colormanagement_colorspace_to_scene_linear(
+        float_ptr, region_width, 1, dst->channels, src->rect_colorspace, false);
+    float_ptr += 4 * dst->x;
+  }
+
+  /* Perform alpha conversion. */
+  if (IMB_alpha_affects_rgb(src)) {
+    float_ptr = rect_float;
+    for (int i = 0; i < region_height; i++) {
+      IMB_premultiply_rect_float(float_ptr, dst->channels, region_width, 1);
+      float_ptr += 4 * dst->x;
+    }
+  }
+}
+
 void IMB_float_from_rect(ImBuf *ibuf)
 {
   float *rect_float;
@@ -775,33 +831,14 @@ void IMB_float_from_rect(ImBuf *ibuf)
     }
 
     ibuf->channels = 4;
-  }
-
-  /* first, create float buffer in non-linear space */
-  IMB_buffer_float_from_byte(rect_float,
-                             (unsigned char *)ibuf->rect,
-                             IB_PROFILE_SRGB,
-                             IB_PROFILE_SRGB,
-                             false,
-                             ibuf->x,
-                             ibuf->y,
-                             ibuf->x,
-                             ibuf->x);
-
-  /* then make float be in linear space */
-  IMB_colormanagement_colorspace_to_scene_linear(
-      rect_float, ibuf->x, ibuf->y, ibuf->channels, ibuf->rect_colorspace, false);
-
-  /* byte buffer is straight alpha, float should always be premul */
-  if (IMB_alpha_affects_rgb(ibuf)) {
-    IMB_premultiply_rect_float(rect_float, ibuf->channels, ibuf->x, ibuf->y);
-  }
-
-  if (ibuf->rect_float == NULL) {
     ibuf->rect_float = rect_float;
     ibuf->mall |= IB_rectfloat;
     ibuf->flags |= IB_rectfloat;
   }
+
+  rcti region_to_update;
+  BLI_rcti_init(&region_to_update, 0, ibuf->x, 0, ibuf->y);
+  IMB_float_from_rect_ex(ibuf, ibuf, &region_to_update);
 }
 
 /** \} */
diff --git a/source/blender/makesrna/intern/rna_image.c b/source/blender/makesrna/intern/rna_image.c
index e40fafd2069..56e23278176 100644
--- a/source/blender/makesrna/intern/rna_image.c
+++ b/source/blender/makesrna/intern/rna_image.c
@@ -103,6 +103,7 @@ static void rna_Image_generated_update(Main *bmain, Scene *UNUSED(scene), Pointe
 {
   Image *ima = (Image *)ptr->owner_id;
   BKE_image_signal(bmain, ima, NULL, IMA_SIGNAL_FREE);
+  BKE_image_partial_update_mark_full_update(ima);
 }
 
 static void rna_Image_colormanage_update(Main *bmain, Scene *UNUSED(scene), PointerRNA *ptr)
@@ -141,6 +142,7 @@ static void rna_Image_views_format_update(Main *bmain, Scene *scene, PointerRNA
   }
 
   BKE_image_release_ibuf(ima, ibuf, lock);
+  BKE_image_partial_update_mark_full_update(ima);
 }
 
 static void rna_ImageUser_update(Main *bmain, Scene *scene, PointerRNA *ptr)