发明申请
- 专利标题: FLOATING POINT COMPUTER SYSTEM WITH FLOATING POINT MEMORY
- 专利标题(中): 浮动点计算机系统与浮动点存储器
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申请号: US13494783申请日: 2012-06-12
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公开(公告)号: US20120256933A1公开(公告)日: 2012-10-11
- 发明人: John M. Airey , Mark S. Peercy , Robert A. Drebin , John Montrym , David L. Dignam , Christopher J. Migdal , Danny D. Loh
- 申请人: John M. Airey , Mark S. Peercy , Robert A. Drebin , John Montrym , David L. Dignam , Christopher J. Migdal , Danny D. Loh
- 申请人地址: US NY New Rochelle
- 专利权人: GRAPHICS PROPERTIES HOLDINGS, INC.
- 当前专利权人: GRAPHICS PROPERTIES HOLDINGS, INC.
- 当前专利权人地址: US NY New Rochelle
- 主分类号: G09G5/39
- IPC分类号: G09G5/39
摘要:
A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
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