Optimized key frame caching for remote interface rendering

A method for managing a cache, comprising:

• providing current graphical frame data for a current frame to a client by a server over a network;
• identifying a new frame by the server to be rendered at the client;
• determining that the changes between the new frame and the current frame are associated with a full frame update;
• determining whether the difference in pixel data values between the new frame and the current frame is within a threshold in response to determining that the changes are associated with a full frame update;
• performing a motion encoding process if the difference in pixel data values between the new frame and the current frame is within the threshold;
• and
• performing caching logic if the difference in pixel data values between the new frame and the current frame is not within the threshold, wherein the performing caching logic comprises:
• determining whether the new frame is similar to a frame that is cached at the client;
• selecting a cached frame by the server if a similar frame is cached at the client;
• generating a first cache instruction to select the selected cached frame if the new frame is similar to a frame cached at the client;
• encoding a set of difference data instructions associated with the difference between the new frame and the selected cached frame if the similar frame is cached at the client;
• generating a second cache instruction to add the new frame to the cache at the client if the new frame is not a similar to any existing frame cached at the client;
• and
• transmitting a payload that includes the first or second cache instruction and the set of difference data instructions if encoded to the client by the server.

A server comprising:

• a processor;
• and
• a processor readable storage device having processor readable code embodied on said processor readable storage device, said processor readable code for programming said processor to:
• provide current graphical frame data for a current frame from the server to a client over a network;
• identify a new frame to be rendered at the client;
• determine that the changes between the new frame and the current frame are associated with a full frame update;
• determine whether the difference in pixel data values between the new frame and the current frame is within a threshold in response to determining that the changes are associated with a full frame update;
• perform a motion encoding process if the difference in pixel data values between the new frame and the current frame is within the threshold;
• and
• perform caching logic if the difference in pixel data values between the new frame and the current frame is not within the threshold, wherein said processor readable code for programming said processor to perform caching logic comprises processor readable code for programming said processor to:
• determine whether the new frame is similar to a frame that is cached at the client;
• select a cached frame by the server if a similar frame is cached at the client;
• generate a first cache instruction to select the similar frame if the new frame is similar to a frame cached at the client;
• encode a set of difference data instructions associated with the difference between the new frame and the similar cached frame if the similar frame is cached at the client;
• generate a second cache instruction to add the new frame to the cache at the client if the new frame is not a similar to any existing frame cached at the client;
• and
• transmit a payload from the server to the client that includes the first cache instruction or the second cache instruction and the set of difference data instructions if encoded.