Vehicle device and vehicle device control method
AssigneeDenso Corporation
InventorNobuhiko TANIBATA
Life of this patent
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Abstract
A vehicle device includes an application as a determiner configured to determine whether a frame buffer has been updated. The application is further configure to set a determination region, prepare a determination image to be drawn in the determination region, request a GPU to draw the prepared determination image, read the determination image that is actually drawn in the frame buffer by the GPU, and determine that the frame buffer has been updated when the prepared determination image matches the read determination image.
Claims10
A vehicle device connected to a display device, the vehicle device comprising:
- a graphic processing unit configured to draw a content based on a drawing request from an application program;
- a synthesizer configured to paste the drawn content to a frame buffer that is provided corresponding to the display device;
- and
- a determiner configured to determine whether the frame buffer has been updated, wherein
- the synthesizer is further configured to:
- set a pasting region to be pasted to the frame buffer;
- divide the set pasting region into triangular unit regions;
- and
- cause the graphic processing unit to execute processing of pasting each of the unit regions to the frame buffer, and
- the determiner is further configure to:
- set a determination region in the pasting region;
- prepare a determination image to be drawn in the determination region;
- request the graphic processing unit to draw the prepared determination image;
- read the determination image that is actually drawn in the frame buffer by the graphic processing unit;
- and
- determine that the frame buffer has been updated when the prepared determination image matches the read determination image.
A control method of a vehicle device connected to a display device, the method comprising:
- setting a pasting region to be pasted to a frame buffer, the pasting region being a region including a content drawn by an application program;
- dividing the pasting region into triangular unit regions;
- pasting each of the unit regions to the frame buffer by a graphics processing unit;
- preparing a determination image to be drawn in a determination region that is set in the pasting region;
- drawing the prepared determination image in the frame buffer by the graphics processing unit;
- comparing the prepared determination image to the determination image that is actually drawn in the frame buffer;
- and
- determining that the frame buffer has been updated when the prepared determination image matches the determination image actually drawn in the frame buffer.
Dependencies are inferred from the claim text.