Method and apparatus for graphics context switching

G - Physics – 06 – T

Patent

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G06T 1/20 (2006.01) G06F 3/14 (2006.01) G06F 9/46 (2006.01)

Patent

CA 2418209

A method and apparatus in a data processing system for context management for a plurality of graphic processes. A request is received to send graphics data to a graphics adapter from a first graphics process within the plurality of graphics processes. A determination is made as to whether a complete change in a current context is required for the graphics adapter to process the graphics data from the first graphics process. If only a portion of the current context needs to be changed, the portions to be changed are saved. Then, the context information for the graphics process are retrieved and placed in with the current context information required using a set of contexts stored in a memory.

L'invention concerne un procédé et un appareil de gestion de contexte pour une pluralité de processus graphiques dans un système informatique. Selon l'invention, le système reçoit une demande d'envoi de données graphiques à un adaptateur graphique provenant d'un premier processus graphique d'un ensemble de processus graphiques, puis il détermine si un changement complet doit être effectué dans un contexte courant pour que l'adaptateur graphique traite les données graphiques du premier processus graphique. Si seulement une partie du contexte courant doit être changée, les parties à changer sont sauvegardées. Ensuite, les informations de contexte pour le processus graphique sont récupérées et placées avec les informations de contexte courantes requises à l'aide d'une ensemble de contextes stockés dans une mémoire.

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