Patent ID: 10282803

Abstract:
One embodiment of the present invention includes a graphics subsystem that includes a tiling unit, a crossbar unit, and a screen-space pipeline. The crossbar unit is configured to transmit primitives interleaved with state change commands to the tiling unit. The tiling unit is configured to record an initial state associated with the primitives and to transmit to the screen-space pipeline one or more primitives in the primitives that overlap a first cache tile. The tiling unit is further configured to transmit the initial state to the screen-space pipeline and to transmit to the screen-space pipeline one or more primitives in the primitives that overlap a second cache tile. The tiling unit includes a state filter block configured to determine that a first state change in the state change commands is followed by a second state change, without an intervening primitive, and to forego transmitting the first state change in response.