公开(公告)号：US20150022534A1

公开(公告)日：2015-01-22

申请号：US14506959

申请日：2014-10-06

Applicant: QUALCOMM Incorporated

Inventor： YUN DU ,  Guofang Jiao ,  Chun Yu ,  Alexei Vladimirovich Bourd

IPC: G06T1/20

CPC classification number: G06T1/20 ,  G06F9/30167 ,  G06F9/383 ,  G06F9/3851 ,  G06F9/3885

Abstract: A graphics processor capable of efficiently performing arithmetic operations and computing elementary functions is described. The graphics processor has at least one arithmetic logic unit (ALU) that can perform arithmetic operations and at least one elementary function unit that can compute elementary functions. The ALU(s) and elementary function unit(s) may be arranged such that they can operate in parallel to improve throughput. The graphics processor may also include fewer elementary function units than ALUs, e.g., four ALUs and a single elementary function unit. The four ALUs may perform an arithmetic operation on (1) four components of an attribute for one pixel or (2) one component of an attribute for four pixels. The single elementary function unit may operate on one component of one pixel at a time. The use of a single elementary function unit may reduce cost while still providing good performance.

Abstract translation: 描述能够有效执行算术运算和计算基本功能的图形处理器。 图形处理器具有至少一个可执行算术运算的算术逻辑单元（ALU）和至少一个可以计算基本功能的基本功能单元。 ALU和基本功能单元可以被布置成使得它们可以并行操作以提高吞吐量。 图形处理器还可以包括比ALU更少的基本功能单元，例如四个ALU和单个基本功能单元。 四个ALU可以对（1）四个像素的属性的四个分量或（2）四个像素的属性的一个分量执行算术运算。 单个基本功能单元可以一次操作一个像素的一个分量。 使用单个基本功能单元可以降低成本，同时仍然提供良好的性能。