Techniques for improving rendering efficiency

摘要

Various embodiments are generally directed to techniques for causing the storage of a color data value of a clear color to be deferred or entirely avoided as color data values of primitives of an image are stored. An apparatus includes a processor element; and a logic to store color data values of a block of pixels of the image in a first portion of a cache line, store an indication of the first portion as written and of a second portion of the cache line as not in a per-portion table, evict contents of the first and second portions, and store the contents of the first portion in an image data and store a color data value of a clear color in place of the contents of the second portion in the image data in response to the indications stored in the per-portion table. Other embodiments are described and claimed.

主权项

1. An apparatus comprising:
a processor element to execute instructions to render color data values of a block of pixels of an image into a first portion of a cache line of a cache; a cache controller to store an indication of the first portion as written and of a second portion of the cache line as not written in a per-portion table in response to the rendering of color data values into the first portion and a lack of rendering of color data values into the second portion and evict contents of the cache line, including the first and second portions, through a multiplexer to an image data that represents the image and is stored in a storage; and the multiplexer to store the contents of the first portion in the image data within the storage without modification in response to the indication of the first portion as written, and replace the contents of the second portion with an instance of a color data value indicative of a clear color in response to the indication of the second portion as not written and prior to storage of the contents of the second portion in the image data within the storage.