Coherent shader output for multiple targets

Details Coherent shader output for multiple targets Coherent shader output for multiple targets

2006-06-01

2010-06-01

Tung, Kee M (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S502000

Reexamination Certificate

active

07728841

ABSTRACT:
In a multiple render target mode, a pixel shader computes color values for pixels and stores the computed color values in a register file. The register file acts as a buffer for the computed color values. Conventionally writing pixels in the order they are received (pixel-major order) can result in large strides across memory in the frame buffer. At least a minimum amount of work should be done within a DRAM page, for example, to cover the overhead required in opening the DRAM page. Therefore, color values are written from the register file to two or more targets in a frame buffer in a target-major order within a segment. Writing in a target-major order (sequential with respect to targets but non-sequential with respect to quads received and processed) yields coherent writes to frame buffer memory and improves memory efficiency.

REFERENCES:
patent: 5794016 (1998-08-01), Kelleher
patent: 7184059 (2007-02-01), Fouladi et al.
patent: 7277099 (2007-10-01), Valmiki et al.
patent: 2005/0231533 (2005-10-01), Chen
T. Gleerup, Gleerup, T.; Holten-Lund, H.; Madsen, J.; Pedersen, S., “Memory architecture for efficient utilization of SDRAM: a case study of the computation/memory access trade-off,” Hardware/Software Codesign, 2000. Codes 2000. Proceedings of the Eighth International Workshop on , vol., no., pp. 51-55, 2000.

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