Invention Grant
- Patent Title: Accelerated blits of multisampled textures on GPUs
-
Application No.: US15179738Application Date: 2016-06-10
-
Publication No.: US10169887B2Publication Date: 2019-01-01
- Inventor: Domenico Troiano , Michael Imbrogno
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blank Rome LLP
- Main IPC: G06T11/00
- IPC: G06T11/00 ; G06T1/60 ; G06T15/04

Abstract:
Systems, computer readable media, and methods for hardware accelerated blits of multisampled textures on graphics processing units (GPUs) are disclosed. For multisampled surfaces, texture-to-buffer blits cannot be trivially implemented because most GPUs do not support writing multisampled surfaces with a linear memory layout. Moreover, GPUs often have a maximum limit for row stride (i.e., the number of bytes from one row of pixels in memory to the next) and/or texture size. When the destination buffer for the blit of a multisampled texture is too large to be aliased by an equivalent non-multisampled texture view, the stride of the view has no spatial relationship with the destination buffer. Thus, to access the source texture correctly, a ‘remapping’ may be performed to determine the linear sample index of a fragment within the view, and the destination buffer stride may be used to compute the texture coordinates used to sample the source texture.
Public/Granted literature
- US20170358109A1 Accelerated Blits of Multisampled Textures on GPUs Public/Granted day:2017-12-14
Information query
IPC分类:
G | 物理 |
G06 | 计算;推算或计数 |
G06T | 一般的图像数据处理或产生 |
G06T11/00 | 2D〔二维〕图像的生成 |