CN114020228A - Screen display method and device - Google Patents
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- CN114020228A CN114020228A CN202111280606.1A CN202111280606A CN114020228A CN 114020228 A CN114020228 A CN 114020228A CN 202111280606 A CN202111280606 A CN 202111280606A CN 114020228 A CN114020228 A CN 114020228A
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- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
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Abstract
The embodiment of the application discloses a screen display method and a device, wherein the method comprises the following steps: receiving first image data, wherein the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed; acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment; determining screen changing requirements of the electronic equipment according to the first information and the second information; converting the screen image to be processed into a target screen image according to the screen changing requirement; and sending the target screen image to at least one target screen. According to the method and the device, the screen image to be processed is converted into the target image which is displayed by the screen support of screen changing according to the screen changing requirement, so that the switching chip can meet different screen changing scenes and different screens matched with the electronic equipment.
Description
Technical Field
The present application relates to the field of image processing technologies, and in particular, to a screen display method and apparatus.
Background
With the influence of users on the visual experience requirements, the screen of the electronic device is also larger and larger. Along with the increase of the screen of the electronic equipment, the screen breaking risk of the electronic equipment is gradually increased. When a user changes the screen of the electronic device, the user needs to re-configure one screen for the electronic device, but most of the current chips can support one image format input, and the output of the chip only supports the screen in the same scanning direction as the input, so that the chip cannot meet different screen changing scenes to adapt to different screens.
Disclosure of Invention
The embodiment of the application provides a screen display method and device, and different screen changing scenes and different screen adapting can be met by processing a screen image to be processed.
In a first aspect, an embodiment of the present application provides a screen display method, where the method includes:
receiving first image data, wherein the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed;
acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment;
determining screen changing requirements of the electronic equipment according to the first information and the second information;
converting the screen image to be processed into a target screen image according to the screen changing requirement;
and sending the target screen image to the at least one target screen.
In a second aspect, an embodiment of the present application provides a screen display device, including:
the image processing device comprises a transceiving unit, a processing unit and a processing unit, wherein the transceiving unit is used for receiving first image data, the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed;
the processing unit is used for acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment;
the processing unit is further configured to determine a screen changing requirement of the electronic device according to the first information and the second information;
the processing unit is further used for converting the screen image to be processed into a target screen image according to the screen changing requirement;
the transceiver unit is further configured to send the target screen image to the at least one target screen.
In a third aspect, embodiments of the present application provide a chip comprising a processor, a memory, a communication interface, and one or more programs, stored in the memory and configured to be executed by the processor, the programs including instructions for performing some or all of the steps described in the method of the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform some or all of the steps described in the method of the first aspect.
In a fifth aspect, the present application provides a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps described in the method according to the first aspect of the present application. The computer program product may be a software installation package.
According to the technical scheme, first image data are received, the first image data comprise a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and the resolution of the screen image to be processed; acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment; determining screen changing requirements of the electronic equipment according to the first information and the second information; converting the screen image to be processed into a target screen image according to the screen changing requirement; and sending the target screen image to at least one target screen. According to the method and the device, the screen image to be processed is converted into the target image which is displayed by the screen support of screen changing according to the screen changing requirement, so that the switching chip can meet different screen changing scenes and different screens matched with the electronic equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a screen display system provided in an embodiment of the present application;
fig. 2 is a schematic system structure diagram of a chip according to an embodiment of the present disclosure;
FIG. 3 is a flowchart illustrating a screen display method according to an embodiment of the present disclosure;
FIG. 4 is a block diagram illustrating functional units of a screen display device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a chip according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions of the present application, the following description is given for clarity and completeness in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step on the basis of the description of the embodiments of the present application belong to the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, software, product, or apparatus that comprises a list of steps or elements is not limited to those listed but may include other steps or elements not listed or inherent to such process, method, product, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Along with the influence of a user on the visual experience demand, the screen of the electronic device is also larger and larger, but with the increase of the screen of the electronic device, the screen breaking risk of the electronic device is also increased gradually, when the user needs to change the screen of the electronic device, the electronic device is generally provided with a screen and a chip at present, and the image processing chip is as follows: (1) the product of the bridge chip such as SSD2828 is mature and stable, but the bridge chip does not have a Micro Control Unit (MCU), cannot be flexibly configured, has a limited use model, needs to be matched with an extra MCU, and does not support a partial update scene. (2) The FPGA-based transcoding chip has the advantages that a programmable device is relatively flexible, MCU IP can be provided, and the FPGA-based transcoding chip is suitable for a plurality of scenes, but the FPGA is high in power consumption, general in image processing effect, small in bandwidth, incapable of performing operations such as image rotation and the like, and not suitable for scenes with high refresh rate and other development trends of future electronic equipment. (3) The customized TDDI chip transcoding is based on no need of adding one chip, low in power consumption, high in integration degree, limited in application scenes, incapable of supporting common scenes such as partial update and frame rate conversion, and poor in effect, and only a line extraction method can be used for resolution conversion. As can be seen from the above, most of chips in the current market can support one image format input, and cannot cover all models in the current market; and the products can not support Pentile, RGB888 and RBG101010 at the same time, and the output only supports the screen with the same scanning direction as the input, namely the image processing does not support rotation and mirror image.
Therefore, in order to solve the above problem, the present application provides a screen display method, in which a screen image to be processed is converted into a target image that is supported and displayed by a screen of a screen change according to a screen change requirement, so that a switching chip can meet different screen change scenes and different screen adaptations of an electronic device.
The present application will be described in detail with reference to specific examples.
Referring to fig. 1, fig. 1 is a schematic diagram of a screen display system according to an embodiment of the present disclosure, where the screen display system includes an AP chip 10, a switch chip 20, and a display screen 30. The AP chip is configured to generate a screen image displayed by the Display screen 30, process the screen image, and transmit a single Mobile Industry Processor Interface (MIPI) Display Serial Interface (DSI) to the adaptor chip 20, where the adaptor chip 20 is configured to adjust the received screen image and then send the adjusted screen image to the Display screen 30 line by line through the single MIPI DSI at a preset frame rate, and the Display screen 30 is in communication connection with the adaptor chip 20, and is capable of receiving and displaying the screen image transmitted by the AP chip 10 through the adaptor chip 20, so that the screen image to be processed can be adapted to different Display screens.
In particular, the AP chip may include one or more processors, memories, WIFI modules, serial/parallel interfaces, and the like. The serial/parallel Interface may include a General Purpose Input/Output (GPIO) Interface, a High Definition Multimedia Interface (HDMI), a CSI (universal system Interface), a DSI (single IPI DSI), and other physical interfaces. The AP chip 10 may be connected to the adaptor chip 20 through a single MIPI DSI, and the processor generates a screen image and transmits the screen image to the adaptor chip 20 through the single MIPI DSI.
The pod chip 20 may include one or more DSI interfaces, each connected to a display screen 30. The switching chip 20 adjusts the received screen image and then simultaneously transmits the adjusted screen image to the corresponding display screen 30 through the DSI interface for displaying.
Referring to fig. 2, fig. 2 is a schematic diagram of a system architecture of a switch chip according to an embodiment of the present disclosure, and as shown in fig. 2, the system architecture of the chip includes an image processing system, a host system, and a storage system. The receiving is from the main chip, such as the mobile phone AP sends the high resolution, high frame rate display image, carries on the zooming and frame rate conversion, outputs the display chip specification of the TDDI to meet the requirements of the image to drive the screen.
Specifically, the switching chip receives MIPI video data sent by the AP chip and responds to a command of the AP chip. After the frame rate and resolution are reduced, the MIPI video data is converted into a high-definition video adaptive to a Touch and Display Driver Integration (TDDI) Display screen, and the video is sent to the Display screen through the MIPI for Display.
Referring to fig. 3, fig. 3 is a flowchart illustrating a screen display method according to an embodiment of the present application, applied to the adaptor chip shown in fig. 1. As shown in fig. 3, the method includes the following steps.
S310, receiving first image data, wherein the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed.
In this application embodiment, the screen image to be processed may be an image stored by the electronic device or acquired from another electronic device, or may also be any frame image in a video stored by the electronic device or acquired from another electronic device, which is not limited in this application embodiment.
The AP chip in the electronic equipment can generate a screen image for display and send the screen image to the switching chip. The switching chip can process the screen image after receiving the screen image so that the screen image can be displayed on a display screen. Further, when the AP chip transmits the screen image to the adaptor chip, the AP chip may simultaneously transmit image information of the screen image to the adaptor chip, and the image information (first information) may include resolution, image format, image size, and the like of the screen image to be processed.
S320, second information is obtained, the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment.
The second information includes a target image format and a target resolution, the target image format is an image format supported by the target screen, and the target resolution is a resolution supported by the target screen.
In practice, the electronic device may be connected to one or more display screens for displaying, and therefore when the electronic device changes the screen or changes one screen into multiple screens, the switching chip needs to perform image processing on the screen image to be processed according to the screen specification of the changed screen, so that the one or more display screens can normally display the screen image. Specifically, after receiving the first image data sent by the AP, the adaptor chip may obtain a screen specification, such as resolution, picture format, screen display direction, and the like, of at least one target screen connected to the electronic device.
S330, determining screen changing requirements of the electronic equipment according to the first information and the second information.
In the embodiment of the application, the adaptor chip may receive image data (including data of an image format, an image resolution, and the like) sent by the AP, determine an original screen specification of an original screen of the electronic device and a target screen specification of at least one target screen (a screen after screen changing), determine a screen changing requirement, and implement processing such as mirroring, rotation, reduction, or amplification of an image and conversion of a frame rate or resolution according to the screen changing requirement and the image data, so as to implement a required image corresponding to the original screen specification.
Optionally, the determining a screen changing requirement of the electronic device according to the first information and the second information includes: determining an original image format according to the image format of the screen image to be processed, wherein the original image format is an image format supported by an original screen of the electronic equipment, comparing the original image format with the target image format, and determining whether the format of the screen image to be processed is converted; determining an original resolution according to the resolution of the screen image to be processed, wherein the original resolution is the resolution supported by an original screen of the electronic equipment, and comparing the original resolution with the target resolution to determine whether the screen image to be processed is subjected to resolution conversion; acquiring a first screen direction and a second screen direction, comparing the even number of the first screen direction with the second screen direction, and determining whether the screen image to be processed is subjected to rotation conversion, wherein the first screen direction is the screen direction of the original screen of the electronic equipment, and the second screen direction is the screen direction of the target screen.
The switching chip respectively compares the image format, the resolution size and the screen display direction supported by the original screen of the electronic equipment with the image format, the resolution size and the screen display mode supported by at least one target screen. If the screen specifications of the original screen and the target screen of the electronic equipment are the same, the AP can send the generated screen image to be processed to each target screen directly or through a switching chip; if one of the screen specifications is different, the screen specifications of the original screen and the target screen of the electronic device are different, and the switching chip needs to execute corresponding image conversion processing on the screen image to be processed.
For example, when the original screen of the electronic device is different from the image format supported by the target screen, the adaptor chip converts the image of the screen image to be processed into the image format supported by the target screen, that is, converts the screen image to be processed from the original image format into the target image format. For example, if the original screen supports the image of RGB101010 and the target screen supports the image of RGB888, the switching chip converts the image of the screen to be processed from 10Bit to 8Bit, thereby switching the image of RGB101010 to the image of RGB888, and then outputs the image of RGB 8888 to the back-end LCD.
For example, when the original screen of the electronic device and the resolution supported by the target screen are different, the switching chip may obtain the resolution corresponding to the original screen and the resolution of the target screen; calculating the ratio of the two resolutions; and processing the size of the screen image to be processed according to the ratio, and outputting the size as a target screen image.
For example, when the screen display directions displayed by the original screen and the target screen of the electronic device are different, if the screen display direction of the original screen of the electronic device is horizontal display (the resolution width of the original screen is greater than the resolution height), which requires horizontal display of the screen image to be processed, and the screen display direction of the target screen is vertical display (the resolution width of the target screen is less than the resolution height), which requires vertical display of the screen image to be processed, the adaptor chip performs a rotation or transposition operation on the screen image to be processed.
Further, if the width of the original screen resolution is greater than the width of the target screen resolution, and the height of the original screen resolution is less than the target screen resolution, or the width of the original screen resolution is less than the width of the target screen resolution, and the height of the original screen resolution is greater than the target screen resolution, the screen image to be processed is rotated.
Thus, the input image format of the present application can support multiple formats, for example, can support input of RGB888, pentale, and RGB101010, and can perform rotation and mirror processing on the input image according to different output screens, and each chip can be adapted according to different use scenes.
S340, converting the screen image to be processed into a target screen image according to the screen changing requirement.
After the image processing operation to be executed by the switching chip is determined, the screen images to be processed can be sequentially processed according to the required image processing operation, and the target screen image is obtained.
Optionally, the converting the screen image to be processed into the target screen image according to the screen changing requirement includes: if the screen changing requirement comprises format conversion, converting the screen image to be processed from the original image format to the target image format to obtain the target screen image; if the screen changing requirement comprises the rotation conversion, determining to perform anticlockwise rotation or clockwise rotation on the screen image to be processed according to a first angle to obtain the target screen image, wherein the first angle is a difference value between the first screen direction and the second screen direction; if the screen changing requirement comprises the resolution conversion, performing at least one of the following operations on the screen image to be processed: zooming in, zooming out, and mirroring.
Wherein, if the screen changing requirement comprises the resolution conversion, at least one of the following operations is executed on the screen image to be processed: zooming in, zooming out, mirroring, comprising: if the width of the original screen resolution is larger than the width of the target screen resolution and the height of the original screen resolution is larger than the target screen resolution, performing reduction operation on the screen image to be processed; if the width of the original screen resolution is smaller than the width of the target screen resolution and the height of the original screen resolution is smaller than the target screen resolution, performing amplification operation on the screen image to be processed; and if the image to be processed is a mirror image and the target screen does not support the mirror image, performing mirror image operation on the screen image to be processed.
Specifically, if the width and height of the original screen resolution are both greater than the width and height of the target screen resolution, the image to be processed may be reduced; if the width and the height of the resolution of the original screen are both smaller than the width and the height of the resolution of the target screen, the image to be processed can be amplified; for example, when the screen image to be processed is a mirror image, such as a photograph taken by an electronic device, and the target screen does not support displaying the mirror image, the adaptor chip may perform horizontal mirroring or vertical mirroring on the screen image to be processed.
In practical applications, when the bandwidth supported by the single-screen physical interface of the target screen (screen after screen change) is different from the bandwidth supported by the single-screen physical interface of the original screen of the electronic device, the switching chip further needs to determine the image after the conversion processing, so that the image in the electronic device can be displayed on the display screen.
In a possible example, the method further comprises: and if the total bandwidth required by the pixel transmission of the screen image to be processed is greater than the maximum output bandwidth of the single-screen physical interface of the target screen, compressing the multiple screen images to obtain the target screen image.
The bandwidth supported by the single-screen physical interface of the target screen is smaller than the bandwidth supported by the single-screen physical interface of the original screen of the electronic device (that is, the bandwidth supported by the AP chip of the electronic device but the bandwidth supported by the screen physical interface is larger than the bandwidth supported by the single-screen physical interface of the target screen), and the switching chip in the electronic device can adjust the resolution of the screen image to be processed generated by the AP chip to be equal to the screen resolution of the target screen, and then send the screen image to the display for display or directly send the screen image to the display for display by the switching chip.
Further, wherein, the single-screen physical interface may be a single MIPI DSI. When the single MIPI DSI of the AP chip is not matched with the single MIPI DSI interface of the target screen, so that the target screen image cannot be output to the display screen to be displayed, the switching chip can adjust the resolution of the screen image to be processed, and the single MIPI DSI can transmit the adjusted screen image.
Optionally, if the total bandwidth required for pixel transmission of the screen image to be processed is greater than the maximum output bandwidth of the single-screen physical interface of the target screen, compressing the multiple screen images to obtain the target screen image, including: and if the resolution multiplied by the frame rate of the screen image to be processed is larger than the maximum output bandwidth of the single-screen physical interface of the target screen, and/or the resolution width of the screen image to be processed is larger than the maximum resolution width of the single-screen physical interface of the target screen, and/or the resolution height of the screen image to be processed is larger than the maximum resolution height of the single-screen physical interface of the target screen, performing pixel compression or chroma compression on the screen image to be processed to obtain the target screen image.
In this application, if the resolution width × the frame rate of the to-be-processed screen image is greater than the maximum output bandwidth of the single-screen physical interface of the target screen, and/or the resolution width of the to-be-processed screen image is greater than the maximum resolution width of the single-screen physical interface of the target screen, and/or the resolution height of the to-be-processed screen image is greater than the maximum resolution height of the single-screen physical interface of the target screen, it indicates that the single-screen physical interface of the AP chip is not matched with the single-screen physical interface of the target screen, and the target screen image cannot be transmitted. At this moment, the switching chip can perform pixel compression on the screen image to be processed along the row direction or the column direction, and the switching chip can also perform pigment compression on the screen image to be processed, so that the single-screen physical interface of the target screen can transmit the target screen image, and the switching chip can meet different screen changing scenes and different adaptive screens of the electronic equipment.
The pixel compression may be linear filtering downsampling of RGB color components of the pixels on the processing screen image, such as bilinear filtering downsampling, which compresses the resolution width or the resolution height of the processing screen image. The chroma compression can be used for converting the screen image or the spliced picture from a 24-bit RGB888 format to a 16-bit RGB565 format or a 12-bit YUV420 format, and can simultaneously compress the resolution width and the resolution height of the processed screen image, so that the resolution of the processed screen image can be reduced, and the data volume of the processed screen image can be reduced.
In a possible example, the method further comprises: and if the resolution height of the screen image to be processed is greater than the resolution height corresponding to the maximum output bandwidth of the single-screen physical interface of the target screen, or the resolution width of the screen image to be processed is greater than the resolution width corresponding to the maximum output bandwidth of the single-screen physical interface of the target screen, performing width-to-height ratio conversion on the screen image to be processed to obtain the target screen image.
In practical applications, one electronic device may be connected to a plurality of display screens to display picture contents. When it is necessary to display on multiple display screens simultaneously, the AP chip may first obtain screen resolutions of the multiple display screens, and then generate multiple screen images having the same screen resolutions as the multiple display screens in a Central Processing Unit (CPU) or a Graphics Processing Unit (GPU) manner. For example, when a host in a supermarket foreground is connected with two display screens with different resolutions for display, an AP chip in the host may generate two screen images with the same resolution, and then a switching chip in the host adjusts the resolution of the screen images to the screen resolution of a target screen and then sends the screen images to a display for display, or the switching chip directly sends the screen images to the display for display. However, when the resolution of a plurality of screens is different in height, the problem of screen flash caused by non-uniform refreshing of the display screen occurs.
In the embodiment of the application, in order to solve the problem of screen flash caused by uneven refreshing, the resolution of the screen image to be processed can be adjusted to be equal to the screen resolution of each target screen through the switching chip and then sent to the display to be displayed, or the switching chip directly sends the screen image to the display to be displayed.
Specifically, before compressing the screen image to be processed, the adaptor chip may first determine whether the resolution height of the screen image to be processed is greater than the maximum resolution height of the single-screen physical interface of each target screen, and if the resolution height of the screen image to be processed is greater than the maximum resolution height of the single-screen physical interface of the first target screen, perform width-to-height conversion of resolution pixels on the screen image to be processed sent to the first target screen, so that the resolution height of the screen image to be processed is less than or equal to the maximum resolution height of the single-screen physical interface of the first target screen. Specifically, the resolution heights of the multiple screen images are set as a first resolution height for width-height conversion, and the first resolution height is less than or equal to the maximum resolution height of the MIPI of the single-screen physical interface. And/or before compressing the screen image to be processed, the switching chip may first determine whether the resolution width of the screen image to be processed is greater than the maximum resolution width of the single-screen physical interface of each target screen, and if the resolution width of the screen image to be processed is greater than the maximum resolution width of the single-screen physical interface of the first target screen, perform width-to-height conversion of resolution pixels on the screen image to be processed sent to the first target screen, so that the resolution width of the screen image to be processed is less than or equal to the maximum resolution width of the single-screen physical interface of the first target screen. Specifically, the resolution widths of the multiple screen images are set to be first resolution widths for width-to-height conversion, and the first resolution widths are smaller than or equal to the maximum resolution width of the MIPI of the single-screen physical interface.
And S350, sending the target screen image to the at least one target screen.
After the screen image to be processed is adjusted to obtain the target screen image, the switching chip can simultaneously send the target screen image to the display screens of at least one interface such as MIPI DSI, LVDS, EDp and the like line by line according to a preset frame rate, so that the corresponding screen images are respectively displayed on the plurality of display screens.
The screen display method comprises the steps of receiving first image data, wherein the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed; acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment; determining screen changing requirements of the electronic equipment according to the first information and the second information; converting the screen image to be processed into a target screen image according to the screen changing requirement; and sending the target screen image to at least one target screen. According to the method and the device, the screen image to be processed is converted into the target image which is displayed by the screen support of screen changing according to the screen changing requirement, so that the switching chip can meet different screen changing scenes and different screens matched with the electronic equipment.
The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that the network device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
Referring to fig. 4, fig. 4 is a block diagram of functional units of an on-screen display device 400 according to an embodiment of the present application, where the device 400 is applied to a switch chip, and the device 400 includes: a transceiving unit 410, and a processing unit 420, wherein,
the transceiver 410 is configured to receive first image data, where the first image data includes a screen image to be processed and first information, and the first information includes an image format of the screen image to be processed and a resolution of the screen image to be processed;
the processing unit 420 is configured to acquire second information, where the second information is used to indicate screen information of at least one target screen, and the target screen is a screen after screen change of the electronic device;
the processing unit 420 is further configured to determine a screen changing requirement of the electronic device according to the first information and the second information;
the processing unit 420 is further configured to convert the screen image to be processed into a target screen image according to the screen change requirement;
the transceiver 410 is further configured to send the target screen image to the at least one target screen.
Optionally, the second information includes a target image format and a target resolution, where the target image format is an image format supported by the target screen, and the target resolution is a resolution supported by the target screen;
in terms of determining the screen changing requirement of the electronic device according to the first information and the second information, the processing unit 420 is specifically configured to: determining an original image format according to the image format of the screen image to be processed, wherein the original image format is an image format supported by an original screen of the electronic equipment, comparing the original image format with the target image format, and determining whether the format of the screen image to be processed is converted; determining an original resolution according to the resolution of the screen image to be processed, wherein the original resolution is the resolution supported by an original screen of the electronic equipment, and comparing the original resolution with the target resolution to determine whether the screen image to be processed is subjected to resolution conversion; acquiring a first screen direction and a second screen direction, comparing the even number of the first screen direction with the second screen direction, and determining whether the screen image to be processed is subjected to rotation conversion, wherein the first screen direction is the screen direction of the original screen of the electronic equipment, and the second screen direction is the screen direction of the target screen.
Optionally, in terms of converting the screen image to be processed into the target screen image according to the screen changing requirement, the processing unit 420 is specifically configured to: if the screen changing requirement comprises format conversion, converting the screen image to be processed from the original image format to the target image format to obtain the target screen image; if the screen changing requirement comprises the rotation conversion, determining to perform anticlockwise rotation or clockwise rotation on the screen image to be processed according to a first angle to obtain the target screen image, wherein the first angle is a difference value between the first screen direction and the second screen direction; if the screen changing requirement comprises the resolution conversion, performing at least one of the following operations on the screen image to be processed: zooming in, zooming out, and mirroring.
Optionally, if the screen change requirement includes the resolution conversion, at least one of the following operations is performed on the screen image to be processed: in terms of zooming in, zooming out, and mirroring, the processing unit 420 is specifically configured to: if the width of the original screen resolution is larger than the width of the target screen resolution and the height of the original screen resolution is larger than the target screen resolution, performing reduction operation on the screen image to be processed; if the width of the original screen resolution is smaller than the width of the target screen resolution and the height of the original screen resolution is smaller than the target screen resolution, performing amplification operation on the screen image to be processed; and if the image to be processed is a mirror image and the target screen does not support the mirror image, performing mirror image operation on the screen image to be processed.
Optionally, the processing unit 420 is further configured to compress the multiple screen images to obtain the target screen image if a total bandwidth required for pixel transmission of the screen image to be processed is greater than a maximum output bandwidth of a single-screen physical interface of the target screen.
Optionally, in the aspect that if the total bandwidth required for pixel transmission of the screen image to be processed is greater than the maximum output bandwidth of the single-screen physical interface of the target screen, the processing unit 420 is specifically configured to, in order to obtain the target screen image, compress the multiple screen images: and if the resolution multiplied by the frame rate of the screen image to be processed is larger than the maximum output bandwidth of the single-screen physical interface of the target screen and/or the resolution width of the screen image to be processed is larger than the maximum resolution width of the single-screen physical interface of the target screen, performing pixel compression or chroma compression on the screen image to be processed to obtain the target screen image.
Optionally, the processing unit 420 is further configured to perform width-to-height ratio transformation on the to-be-processed screen image if the resolution height of the to-be-processed screen image is greater than the resolution height corresponding to the maximum output bandwidth of the single-screen physical interface of the first target screen, or the resolution width of the to-be-processed screen image is greater than the resolution width corresponding to the maximum output bandwidth of the single-screen physical interface of the first target screen, where the at least one target screen includes the target screen.
It should be appreciated that the apparatus 400 herein is embodied in the form of a functional unit. The term "unit" herein may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an optional example, a person skilled in the art may understand that the apparatus 400 may be specifically an on-board device in the foregoing embodiment, and the apparatus 400 may be configured to execute each procedure and/or step corresponding to the on-board device in the foregoing method embodiment, and in order to avoid repetition, details are not described here again.
The device 400 of each scheme has the functions of realizing the corresponding steps executed by the vehicle-mounted equipment in the method; the functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software comprises one or more modules corresponding to the functions; for example, the transceiver unit 410 may be replaced by a transmitter, and the processing unit 420 may be replaced by a processor, which performs the transceiving operations and the related processing operations in the respective method embodiments, respectively.
In an embodiment of the present application, the apparatus 400 may also be a chip or a system of chips, such as: system on chip (SoC). Correspondingly, the transceiver unit may be a transceiver circuit of the chip, and is not limited herein.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a chip according to an embodiment of the present disclosure, where the chip includes: one or more processors, one or more memories, one or more communication interfaces, and one or more programs; the one or more programs are stored in the memory and configured to be executed by the one or more processors.
The program includes instructions for performing the steps of:
receiving first image data, wherein the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed;
acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment;
determining screen changing requirements of the electronic equipment according to the first information and the second information;
converting the screen image to be processed into a target screen image according to the screen changing requirement;
and sending the target screen image to the at least one target screen.
All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
It will be appreciated that the memory described above may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory. For example, the memory may also store device type information.
In the embodiment of the present application, the processor of the above apparatus may be a Central Processing Unit (CPU), and the processor may also be other general processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), Field Programmable Gate Arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It is to be understood that reference to "at least one" in the embodiments of the present application means one or more, and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first information and the second information are different information only for distinguishing them from each other, and do not indicate a difference in the contents, priority, transmission order, importance, or the like of the two kinds of information.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software elements in a processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in a memory, and a processor executes instructions in the memory, in combination with hardware thereof, to perform the steps of the above-described method. To avoid repetition, it is not described in detail here.
Embodiments of the present application also provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the methods as described in the above method embodiments.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, or a TRP, etc.) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash disk, ROM, RAM, magnetic or optical disk, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A screen display method is applied to a switching chip, and the method comprises the following steps:
receiving first image data, wherein the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed;
acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment;
determining screen changing requirements of the electronic equipment according to the first information and the second information;
converting the screen image to be processed into a target screen image according to the screen changing requirement;
and sending the target screen image to the at least one target screen.
2. The method of claim 1, wherein the second information comprises a target image format and a target resolution of each target screen, wherein the target image format is an image format supported by the target screen, and the target resolution is a resolution supported by the target screen;
the determining the screen changing requirement of the electronic equipment according to the first information and the second information comprises:
determining an original image format according to the image format of the screen image to be processed, wherein the original image format is an image format supported by an original screen of the electronic equipment, comparing the original image format with the target image format, and determining whether the format of the screen image to be processed is converted;
determining an original resolution according to the resolution of the screen image to be processed, wherein the original resolution is the resolution supported by an original screen of the electronic equipment, and comparing the original resolution with the target resolution to determine whether the screen image to be processed is subjected to resolution conversion;
acquiring a first screen direction and a second screen direction, comparing the even number of the first screen direction with the second screen direction, and determining whether the screen image to be processed is subjected to rotation conversion, wherein the first screen direction is the screen direction of the original screen of the electronic equipment, and the second screen direction is the screen direction of the target screen.
3. The method according to claim 2, wherein the converting the screen image to be processed into the target screen image according to the screen change requirement comprises:
if the screen changing requirement comprises format conversion, converting the screen image to be processed from the original image format to the target image format to obtain the target screen image;
if the screen changing requirement comprises the rotation conversion, determining to perform anticlockwise rotation or clockwise rotation on the screen image to be processed according to a first angle to obtain the target screen image, wherein the first angle is a difference value between the first screen direction and the second screen direction;
if the screen changing requirement comprises the resolution conversion, performing at least one of the following operations on the screen image to be processed: zooming in, zooming out, and mirroring.
4. The method of claim 3, wherein if the screen change requirement comprises the resolution conversion, performing at least one of the following operations on the screen image to be processed: zooming in, zooming out, mirroring, comprising:
if the width of the original screen resolution is larger than the width of the target screen resolution and the height of the original screen resolution is larger than the target screen resolution, performing reduction operation on the screen image to be processed;
if the width of the original screen resolution is smaller than the width of the target screen resolution and the height of the original screen resolution is smaller than the target screen resolution, performing amplification operation on the screen image to be processed;
and if the image to be processed is a mirror image and the target screen does not support the mirror image, performing mirror image operation on the screen image to be processed.
5. The method of claim 1, further comprising:
and if the total bandwidth required by the pixel transmission of the screen image to be processed is greater than the maximum output bandwidth of the single-screen physical interface of the target screen, compressing the multiple screen images to obtain the target screen image.
6. The method according to claim 5, wherein if the total bandwidth required for pixel transmission of the screen image to be processed is greater than the maximum output bandwidth of the single-screen physical interface of the target screen, compressing the plurality of screen images to obtain the target screen image comprises:
and if the resolution multiplied by the frame rate of the screen image to be processed is larger than the maximum output bandwidth of the single-screen physical interface of the target screen and/or the resolution width of the screen image to be processed is larger than the maximum resolution width of the single-screen physical interface of the target screen, performing pixel compression or chroma compression on the screen image to be processed to obtain the target screen image.
7. The method of claim 6, further comprising:
and if the resolution height of the screen image to be processed is greater than the resolution height corresponding to the maximum output bandwidth of the single-screen physical interface of the first target screen, or the resolution width of the screen image to be processed is greater than the resolution width corresponding to the maximum output bandwidth of the single-screen physical interface of the first target screen, performing width-to-height ratio conversion on the screen image to be processed, wherein the at least one target screen comprises the target screen.
8. A screen display device is applied to a switching chip, and the device comprises:
the image processing device comprises a transceiving unit, a processing unit and a processing unit, wherein the transceiving unit is used for receiving first image data, the first image data comprises a screen image to be processed and first information, and the first information comprises an image format of the screen image to be processed and a resolution of the screen image to be processed;
the processing unit is used for acquiring second information, wherein the second information is used for indicating screen information of at least one target screen, and the target screen is a screen after screen changing of the electronic equipment;
the processing unit is further configured to determine a screen changing requirement of the electronic device according to the first information and the second information;
the processing unit is further used for converting the screen image to be processed into a target screen image according to the screen changing requirement;
the transceiver unit is further configured to send the target screen image to the at least one target screen.
9. A chip comprising a processor, a memory and a communication interface, the memory storing one or more programs, and the one or more programs being executable by the processor, the one or more programs including instructions for performing the steps in the method of any of claims 1-7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the steps of the method according to any one of claims 1-7.
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