Kernel software driven color remapping of rendered primary surfaces

A method comprising:

• detecting, by a first processor, an indication that rendering of a surface of a first size is being initiated;
• allocating an amount of memory in the memory subsystem for storing two surfaces of the first size responsive to detecting the indication;
• causing a first surface to be rendered and stored in a first half of the allocated memory;
• causing the first surface to be remapped with a selected lookup table (LUT) to generate a second surface which is stored in a second half of the allocated memory;
• and
• causing the second surface to be driven to a display.

An apparatus comprising:

• a first processor configured to:
• detect an indication that rendering of a surface of a first size is being initiated;
• allocate an amount of memory in the memory subsystem for storing two surfaces of the first size responsive to detecting the indication;
• and
• a second processor configured to:
• render and store the first surface in a first half of the allocated memory;
• remap the first surface with a selected lookup table (LUT) to generate a second surface;
• store the second surface in a second half of the allocated memory;
• and
• drive the second surface to a display.

An apparatus comprising, wherein the first processor is further configured to:

• execute a user-mode driver to allocate memory for two surfaces responsive to receiving, from a first user application, a request to render a single surface to be displayed;
• execute the first user application to cause the first surface to be rendered;
• and
• execute a kernel-mode driver to cause the first surface to be remapped with the selected LUT to generate the second surface.