Move ImageTileWrapper to BKE.

ImageTileWrapper is a wrapper around ImageTile to centralize tile calculations when
using CPP. Currentry used by the image engine and will be used for the 3d
texturing brush project.

source/blender/blenkernel/BKE_image_wrappers.hh

@@ -2,13 +2,17 @@
  * Copyright 2022 Blender Foundation. */
 
 /** \file
- * \ingroup draw_engine
+ * \ingroup imbuf
  */
 
 #pragma once
 
 #include "DNA_image_types.h"
 
+#include "BLI_math_vec_types.hh"
+
+namespace blender::bke::image {
+
 struct ImageTileWrapper {
   ImageTile *image_tile;
   ImageTileWrapper(ImageTile *image_tile) : image_tile(image_tile)
@@ -20,6 +24,11 @@ struct ImageTileWrapper {
     return image_tile->tile_number;
   }
 
+  int2 get_tile_offset() const
+  {
+    return int2(get_tile_x_offset(), get_tile_y_offset());
+  }
+
   int get_tile_x_offset() const
   {
     int tile_number = get_tile_number();
@@ -32,3 +41,4 @@ struct ImageTileWrapper {
     return (tile_number - 1001) / 10;
   }
 };
+}  // namespace blender::bke::image

source/blender/draw/CMakeLists.txt

@@ -227,7 +227,6 @@ set(SRC
   engines/image/image_space_node.hh
   engines/image/image_texture_info.hh
   engines/image/image_usage.hh
-  engines/image/image_wrappers.hh
   engines/workbench/workbench_engine.h
   engines/workbench/workbench_private.h
   engines/workbench/workbench_shader_shared.h

source/blender/draw/engines/image/image_drawing_mode.hh

@@ -16,7 +16,6 @@
 
 #include "image_batches.hh"
 #include "image_private.hh"
-#include "image_wrappers.hh"
 
 namespace blender::draw::image_engine {
 
@@ -74,6 +73,7 @@ struct OneTextureMethod {
 };
 
 using namespace blender::bke::image::partial_update;
+using namespace blender::bke::image;
 
 template<typename TextureMethod> class ScreenSpaceDrawingMode : public AbstractDrawingMode {
  private:

source/blender/draw/engines/image/image_instance_data.hh

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#include "BKE_image_wrappers.hh"
+
 #include "image_batches.hh"
 #include "image_buffer_cache.hh"
 #include "image_partial_updater.hh"
@@ -14,14 +16,11 @@
 #include "image_shader_params.hh"
 #include "image_texture_info.hh"
 #include "image_usage.hh"
-#include "image_wrappers.hh"
 
 #include "DRW_render.h"
 
 /**
  * \brief max allowed textures to use by the ScreenSpaceDrawingMode.
- *
- * 4 textures are used to reduce uploading screen space textures when translating the image.
  */
 constexpr int SCREEN_SPACE_DRAWING_MODE_TEXTURE_LEN = 1;