Fix T62876: Camera Background Images

Migrate old legacy code to the draw mamager/object mode. The old legacy
version did not work with wireframe. By migrating the code
to modern draw manager code we have mode control on the drawing process.

Still background images do not work with OIT, the cause seems to be that the transparent pixels are treated as background pixels.
Also There are some artifacts when working with Holdouts and DoF, this
is because the draw engines do not pass the correct alpha values.

Reviewers: fclem, brecht

Differential Revision: https://developer.blender.org/D4638

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_movieclip_types.h b/source/blender/makesdna/DNA_movieclip_types.h
index c804a78eccb..efda24d6e0e 100644
--- a/source/blender/makesdna/DNA_movieclip_types.h
+++ b/source/blender/makesdna/DNA_movieclip_types.h
@@ -57,6 +57,17 @@ typedef struct MovieClipProxy {
   short build_tc_flag;
 } MovieClipProxy;
 
+typedef struct MovieClip_RuntimeGPUTexture {
+  void *next, *prev;
+  MovieClipUser user;
+  /** Not written in file 2 = TEXTARGET_COUNT. */
+  struct GPUTexture *gputexture[2];
+} MovieClip_RuntimeGPUTexture;
+
+typedef struct MovieClip_Runtime {
+  struct ListBase gputextures;
+} MovieClip_Runtime;
+
 typedef struct MovieClip {
   ID id;
   /** Animation data (must be immediately after id for utilities to use it). */
@@ -111,6 +122,8 @@ typedef struct MovieClip {
 
   /* color management */
   ColorManagedColorspaceSettings colorspace_settings;
+
+  struct MovieClip_Runtime runtime;
 } MovieClip;
 
 typedef struct MovieClipScopes {