Data structure for efficient retrieval of compressed texture data from a memory system
US6243081A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T1/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A compressed texture data structure is disclosed. The structure includes at least first and second compressed texture data segments. The first compressed texture data segment starts at a first segment starting memory location, ends at a first segment ending memory location, has a first segment length, and contains a first compressed texture data block having a first compressed texture data block length. The second compressed texture data segment starts at a second segment starting memory location, ends at a second segment ending memory location, has a second segment length, and contains a second compressed texture data block having a second compressed texture data block length. The first and second compressed texture data blocks contain compressed representations of first and second uncompressed blocks of an uncompressed texture map. The second segment starting memory location is disposed contiguously with the first segment ending memory location. The first and second segment lengths are equal; but the first and second compressed texture data block lengths are unequal. The compressed texture data segments may contain length indicators for indicating the length of the compressed tex…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.