Display control device for vehicle to generate native display images and versatile display images

• US 9,779,685 B2
• Filed: 12/12/2013
• Issued: 10/03/2017
• Est. Priority Date: 12/19/2012
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Ishiguro, Hiroshi
• Primary Examiner(s): Drennan, Barry
• Assistant Examiner(s): Patel, Shivang
• Application Number:
  US14/647,871
• Publication Number:
  US 20150302820A1
• Time in Patent Office: 1,391 Days
• Field of Search: 345520
• CPC Class Codes: G06F 2209/482 Application
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G06F 9/4843 by program, e.g. task dispatcher, supervisor, operating system
• CPC Class Codes: G06F 9/541 via adapters, e.g. between incompatible applications
• CPC Class Codes: G06T 1/60 Memory management
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092

Abstract

A vehicle display control device includes: a memory that stores a native platform for operating a native application and a versatile platform for operating a versatile application, and includes a common memory area for sharing data; a control unit that executes the versatile platform to operate a storing device for storing a versatile application image in the common memory area, executes the native platform to operate an acquisition device for acquiring the versatile application image, and operates a production device for producing a display image, in which the versatile application image and a native application image rendered by a native application are laid out; and a display control device that displays the display image on a display device.

Claims

1. A vehicle display control device comprising:

a memory that;

stores a native platform and a versatile platform,

wherein the native platform is stored in the memory as basic software for operating a native application,

wherein the native application is preliminary implemented as a vehicular embedded feature,

wherein the versatile platform is stored in the memory as basic software, wherein the versatile platform is virtually implemented in the native platform, wherein the versatile platform operates a versatile application,

wherein the versatile application is introduced into the vehicle display control device through information communication from an outside device and the versatile application that is introduced into the vehicle display control device thereafter runs in the vehicle display control device; and

includes a common memory area as a memory area for sharing data between the native platform and the versatile platform;

a processor, the processor is configured to;

execute the versatile platform so as to operate a storage device for storing a versatile application image, which is an image rendered by a running versatile application, in the common memory area;

execute the native platform so as to operate an acquisition device for acquiring the versatile application image stored in the common memory area by the storage device; and

operate a production device for producing a display image, in which the versatile application image acquired by the acquisition device and a native application image rendered by a running native application are laid out according to a predetermined display requirement defined in the native platform;

control a display control device that displays the display image, which is produced by the production device, on a predetermined display device, wherein

the processor is further configured to operate the production device to produce a display image related to the versatile application image acquired by the acquisition device, and a display image related to the native application image rendered by the running native application as display images, which are displayed separately on a plurality of display screens,

the processor is further configured to control the display control device to display the display image related to the versatile application image produced by the production device and the display image related to the native application image, by separately distributing the display images to a plurality of display screens, respectively, and

the processor is further configured so that the native application and the versatile application coexist in the vehicle display control device and run together in the vehicle display control device,

wherein the processor is further configured to execute the versatile platform not to directly access the display control device to display the versatile application image; and

wherein the processor is further configured to execute the native platform to coordinate the versatile application image and the native application image by accessing the versatile application image in the common memory area.

2. The vehicle display control device according to claim 1,

wherein the processor is further configured to

operate the communication device for communicating between the native platform and the versatile platform,

execute the versatile platform to notify information that the storage device has stored the versatile application image in the common memory area to the native platform via the communication device, and

execute the native platform so as to control the acquisition device to acquire the versatile application image, which is stored in the common memory area, under a condition that the information that the versatile application image has been store in the common memory area is notified to the native platform via the communication device.

3. The vehicle display control device according to claim 1,

wherein the processor is further configured to

execute the versatile platform so as to further operate a conversion device for converting the versatile application image into an image in a predetermined format, and

wherein the production device produces a display image, in which the image, prepared by converting the versatile application image with the conversion device to have the predetermined format, and the native application image are laid out according to the display requirement.

4. The vehicle display control device according to claim 3,

wherein the processor includes a central processing unit and an image processing unit,

wherein the central processing unit operates the native platform,

wherein the image processing unit performs a calculation, which is necessary to display an image, in place of the central processing unit, and

wherein the conversion device controls the image processing unit to convert the versatile application image.

5. The vehicle display control device according to claim 1,

wherein the production device produces a display image, in which the versatile application image acquired by the acquisition device and the native application image rendered by the native application are displayed and superposed on each other.

6. The vehicle display control device according to claim 1,

wherein the processor is further configured to

operate a communication device for communicating between the native platform and versatile platform,

execute the native platform so as to (i) store an external image, which is rendered by an application in an external unit connected to the vehicle display device, in the common memory area, and to (ii) notify information that the external image has been stored in the common memory area to the versatile platform via the communication device, and

execute the versatile platform so as to (i) acquire the external image, which is stored in the common memory area, under a condition that the information that the external image has been stored in the common memory area is notified to the versatile platform via the communication device, and to (ii) feed an acquired external image to a running versatile application.

8. The vehicle display control device according to claim 1,

wherein the basic software of the native platform includes a rendering driver,

wherein the processor is further configured to

arbitrate, in the rendering driver of the native platform, in conformity with running requirements defined by the native application that was preliminary implemented as the vehicular embedded feature, display and output of images which are outputted from both (a) the native application of the vehicular embedded feature, and (b) the versatile application that runs on the versatile platform virtually implemented in the native platform.

9. The vehicle display control device according to claim 1, wherein the processor is further configured to

determine, by the native platform, whether the versatile application image can be displayed based on a predetermined rule which relates to arbitration for display between the native application image and the versatile application image.

10. The vehicle display control device according to claim 1, wherein the processor is further configured to

determine, by the native platform, whether the versatile application image can be displayed based on a predetermined rule which relates to whether the vehicle is traveling and arbitration that prioritizes display of the native application image over the versatile application image while the vehicle is traveling.

14. The vehicle display control device according to claim 1,

wherein the processor is further configured to execute the native platform to access the versatile application image in the common memory area, which is prepared by the versatile platform, and to cause the native platform to coordinate a concurrent display of the versatile application image and the native application image by employing a mechanism of the native platform.

16. The vehicle display control device according to claim 1,

wherein the versatile application includes a versatile frame buffer driver that renders images into a versatile frame buffer from which images are displayed by the versatile application,

wherein the native platform includes a rendering driver that renders images into a native frame buffer from which images are displayed by the native platform, the native platform exclusively controls the native frame buffer,

wherein the versatile application, which runs in the vehicle display control device, is further configured to

allocate a rendering area from the common memory area, and

perform rendering processing of the versatile application image into the rendering area which is in the common memory area, instead of rendering the versatile application image into the versatile frame buffer by the versatile frame buffer driver of the versatile platform,

wherein the native platform is further configured to

determine whether to display the versatile application image, which has been rendered for display by the versatile application into the rendering area allocated from the common memory area,

when the versatile application is determined to be displayed, the rendering driver of the native platform renders at least the versatile application image, which stored in the common memory, into the native frame buffer of the native platform, and the native platform outputs at least the versatile application image from the frame buffer of the native platform,

when the versatile application is determined to not be displayed, the native platform does not render the versatile application image, which is stored in the common memory to a frame buffer of the native platform, and the native platform invalidates display of the versatile application image.

7. A vehicle display control device comprising:

a processor, the processor is configured to

execute a native platform as basic software for operating a native application,

wherein the native application is preliminary implemented as a vehicular embedded feature;

execute a versatile platform as basic software,

wherein the versatile platform is virtually implemented in the native platform,

wherein the versatile platform operates a versatile application,

wherein the versatile application is introduced into the vehicle display control device through information communication from an outside device and the versatile application that is introduced into the vehicle display control device thereafter runs in the vehicle display control device; and

a common memory area as a memory area for sharing data between the native platform and versatile platform,

wherein the versatile platform includes a storage device that stores a versatile application image, which is an image rendered by a running versatile application, in the common memory area, and

wherein the native platform includes;

an acquisition device that acquires the versatile application image stored in the common memory area by the storage device;

a production device that produces a display image, in which the versatile application image acquired by the acquisition device, and a native application image rendered by a running native application are laid out according to a predetermined display requirement defined in the native platform; and

a display control device that displays the display image, which is produced by the production device, on a predetermined display device, wherein

the processor is further configured to

operate the production device to produce a display image related to the versatile application image acquired by the acquisition device, and a display image related to the native application image rendered by the running native application as display images, which are displayed separately on a plurality of display screens,

control the display control device to display the display image related to the versatile application image produced by the production device and the display image related to the native application image, by separately distributing the display images to a plurality of display screens, respectively, and

the processor is further configured so that the native application and the versatile application coexist in the vehicle display control device and run together in the vehicle display control device,

wherein the processor is further configured to execute the versatile platform not to directly access the display control device to display the versatile application image; and

wherein the processor is further configured to execute the native platform to coordinate the versatile application image and the native application image by accessing the versatile application image in the common memory area.

11. The vehicle display control device according to claim 7,

wherein the basic software of the native platform includes a rendering driver,

wherein the processor is further configured to

arbitrate, in the rendering driver of the native platform, in conformity with running requirements defined by the native application that was preliminary implemented as the vehicular embedded feature, display and output of images which are outputted from both (a) the native application of the vehicular embedded feature, and (b) the versatile application that runs on the versatile platform virtually implemented in the native platform.

12. The vehicle display control device according to claim 7, wherein the processor is further configured to

determine, by the native platform, whether the versatile application image can be displayed based on a predetermined rule which relates to arbitration for display between the native application image and the versatile application image.

13. The vehicle display control device according to claim 7, wherein the processor is further configured to

determine, by the native platform, whether the versatile application image can be displayed based on a predetermined rule which relates to whether the vehicle is traveling and arbitration that prioritizes display of the native application image over the versatile application image while the vehicle is traveling.

15. The vehicle display control device according to claim 7,

wherein the processor is further configured to execute the native platform to access the versatile application image in the common memory area, which is prepared by the versatile platform, and to cause the native platform to coordinate a concurrent display of the versatile application image and the native application image by employing a mechanism of the native platform.

17. The vehicle display control device according to claim 7,

wherein the versatile application includes a versatile frame buffer driver that renders images into a versatile frame buffer from which images are displayed by the versatile application,

wherein the native platform includes a rendering driver that renders images into a native frame buffer from which images are displayed by the native platform, the native platform exclusively controls the native frame buffer,

wherein the versatile application, which runs in the vehicle display control device, is further configured to

allocate a rendering area from the common memory area, and

perform rendering processing of the versatile application image into the rendering area which is in the common memory area, instead of rendering the versatile application image into the versatile frame buffer by the versatile frame buffer driver of the versatile platform,

wherein the native platform is further configured to

determine whether to display the versatile application image, which has been rendered for display by the versatile application into the rendering area allocated from the common memory area,

when the versatile application is determined to be displayed, the rendering driver of the native platform renders at least the versatile application image, which stored in the common memory, into the native frame buffer of the native platform, and the native platform outputs at least the versatile application image from the frame buffer of the native platform,

when the versatile application is determined to not be displayed, the native platform does not render the versatile application image, which is stored in the common memory to a frame buffer of the native platform, and the native platform invalidates display of the versatile application image.