Abstract:
Techniques for rate governing of a display data stream are described. In one embodiment, for example, an apparatus may comprise a processor circuit and a graphics management module comprising a differential analyzer. In some embodiments, the graphics management module may be operative on the processor circuit to determine a target display data transmission rate for one or more displays, determine, by the differential analyzer, an actual display data transmission rate for one or more display data packets based on the target display data transmission rate, transmit the one or more display data packets based on the actual display data transmission rate, and accumulate a difference between the actual display data transmission rate and the target display data transmission rate for the one or more display data packets. Other embodiments are described and claimed.
Abstract:
Techniques are described that can used to synchronize the start of frames from multiple sources so that when a display is to output a frame to a next source, boundaries of current and next source are aligned. Techniques attempt to avoid visible glitches when switching from displaying a frame from a first source to displaying frames from a second source even though alignment is achieved by switching if frames that are to be displayed from the second source are similar to those displayed from the first source.
Abstract:
Techniques are described that can used to synchronize the start of frames from multiple sources so that when a display is to output a frame to a next source, boundaries of current and next source are aligned. Techniques attempt to avoid visible glitches when switching from displaying a frame from a first source to displaying frames from a second source even though alignment is achieved by switching if frames that are to be displayed from the second source are similar to those displayed from the first source.
Abstract:
Techniques to switch between video display modes are described. An apparatus may include a graphics device to generate first synchronized timing signals with a first phase differential to indicate a first display mode for first display data, and to generate second synchronized timing signals with a second phase differential to indicate a second display mode for second display data. Other embodiments are described and claimed.
Abstract:
A method and apparatus for managing overlay data requests are disclosed. One embodiment of an apparatus includes a request unit and a timer. A request is made by a graphics controller to the request unit for a line of overlay data. The request unit divides the request from the graphics controller into a series of smaller requests. The smaller requests are issued to a memory controller. Delays are inserted between each of the smaller requests in order to allow other system resources to more easily gain access to memory.
Abstract:
Techniques for rate governing of a display data stream are described. In one embodiment, for example, an apparatus may comprise a processor circuit and a graphics management module comprising a differential analyzer. In some embodiments, the graphics management module may be operative on the processor circuit to determine a target display data transmission rate for one or more displays, determine, by the differential analyzer, an actual display data transmission rate for one or more display data packets based on the target display data transmission rate, transmit the one or more display data packets based on the actual display data transmission rate, and accumulate a difference between the actual display data transmission rate and the target display data transmission rate for the one or more display data packets. Other embodiments are described and claimed.
Abstract:
A dynamic priority controller monitors a level of data in a display engine buffer and compares the level of data in the display engine buffer to a plurality of thresholds including a first threshold and a second threshold. When the level of data in the display engine buffer is less than or equal to the first threshold, the dynamic priority controller increases a priority for processing display engine data in a communication channel. When the level of data in the display engine buffer is greater than or equal to the second threshold, the dynamic priority controller decreases the priority for processing the display engine data in the communication channel.
Abstract:
Techniques are described that can used to synchronize the start of frames from multiple sources so that when a display is to output a frame to a next source, boundaries of current and next source are aligned. Techniques are useful to avoid visual distortions when changing from a first video source to a second video source.
Abstract:
A method and apparatus for managing overlay data requests are disclosed. One embodiment of an apparatus includes a request unit and a timer. A request is made by a graphics controller to the request unit for a line of overlay data. The request unit divides the request from the graphics controller into a series of smaller requests. The smaller requests are issued to a memory controller. Delays are inserted between each of the smaller requests in order to allow other system resources to more easily gain access to memory.
Abstract:
An apparatus may include two or more frame buffers, a control module, a management module, and a display engine. The two or more frame buffers may each store frame data arranged in a plurality of lines. The control module may designate one of the frame buffers for output. This designation may change for each frame output to a display device. The management module identifies the lines associated with the designated frame buffer as either valid or invalid. More particularly, the management module identifies a line as invalid when the line has changed in at least one of the two or more buffers since the designated buffer's previous designation for output. The display engine fetches, from the designated buffer, any lines identified as invalid. These fetched lines may be sent to the display device for output. Additionally, the fetched lines may be compressed and stored by the display engine.