Coordinate based QoS escalation

Coordinate based QoS escalation

Systems and methods for determining priorities of pixel fetch requests of separate requestors in a display control unit. The distance between the oldest pixel in an output buffer and the output equivalent coordinate of the oldest outstanding source pixel read request for each requestor in the displa...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Chen Hao, Holland Peter F, Dodge Benjamin K
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:Systems and methods for determining priorities of pixel fetch requests of separate requestors in a display control unit. The distance between the oldest pixel in an output buffer and the output equivalent coordinate of the oldest outstanding source pixel read request for each requestor in the display control unit is calculated. Then, a priority is assigned to each requestor based on this calculated distance. If a given requestor lags behind the other requestors based on a comparison of the distance between the oldest pixel and the output equivalent coordinate of the oldest outstanding source pixel read, then source pixel fetch requests for this given requestor are given a higher priority than source pixel fetch requests for the other requestors.