Error concealment in split rendering using shading atlases

An apparatus for graphics processing, comprising:

• memory storing instructions executable by at least one processor;
• and
• at least one processor coupled to the memory and configured, as a client device of a split rendering graphics processing architecture, to execute the instructions to:
• receive an encoded shading atlas for a current frame, the encoded shading atlas characterized by slices;
• decode the received encoded shading atlas and identify unsuccessfully decoded slices;
• determine whether each patch of the decoded shading atlas intersects an identified unsuccessfully decoded slice;
• determine, for each intersecting patch, whether a prior valid version of each intersecting patch is stored at the client device;
• error conceal each intersecting patch having a prior valid version stored at the client device with the corresponding prior valid version to create an error concealed atlas;
• and
• render, the current frame using the error concealed atlas.

An apparatus for graphics processing in a split rendering architecture in a client device, comprising:

• means for receiving an encoded shading atlas for a current frame, the encoded shading atlas characterized by slices;
• means for decoding the received encoded shading atlas and identifying unsuccessfully decoded slices;
• means for determining whether each patch of the decoded shading atlas intersects an identified unsuccessfully decoded slice;
• means for determining, for each intersecting patch, whether a prior valid version of each intersecting patch is stored at the client device;
• means for error concealing each intersecting patch having a prior valid version stored at the client device with the corresponding prior valid version to create an error concealed atlas;
• and
• means for rendering, the current frame using the error concealed atlas.

A computer-readable medium storing computer executable code for graphics processing by a client device in a split rendering architecture, the code when executed by a processor causes the processor to:

• receive an encoded shading atlas for a current frame, the encoded shading atlas characterized by slices;
• decode the received encoded shading atlas and identify unsuccessfully decoded slices;
• determine whether each patch of the decoded shading atlas intersects an identified unsuccessfully decoded slice;
• determine, for each intersecting patch, whether a prior valid version of each intersecting patch is stored at the client device;
• error conceal each intersecting patch having a prior valid version stored at the client device with the corresponding prior valid version to create an error concealed atlas;
• and
• render, the current frame using the error concealed atlas.