Method and system for blending rendered images from multiple applications

摘要

One embodiment of the present invention sets forth a method, which includes the steps of generating a first rendered image associated with a first application, independently generating a second rendered image associated with a second application, applying a first set of blending weights to the first rendered image to establish a first weighted image, applying a second set of blending weights to the second rendered image to establish a second weighted image, and blending the first weighted image and the second weighted image before scanning out a blended result to a first display device.

主权项

1. A video bridge, comprising:
blending logic configured to:
apply a first set of blending weights to a first rendered image received from a first graphics processing unit (GPU) to establish a first weighted image, wherein the first GPU is coupled to a first video memory, is associated with a first application, and is configured to render images to be displayed on a first display device;apply a second set of blending weights to a second rendered image received from a second GPU to establish a second weighted image, wherein the second GPU is coupled to a second video memory, is associated with a second application, and is configured to render images to be displayed on the first display device; andblend the first weighted image and the second weighted image before scanning out a blended result to a first display device; a first set of registers for storing the first set of blending weights; and a second set of registers for storing the second set of blending weights.