CN113474749A - Screen display control method, device and system - Google Patents
Screen display control method, device and system Download PDFInfo
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- CN113474749A CN113474749A CN202080006210.5A CN202080006210A CN113474749A CN 113474749 A CN113474749 A CN 113474749A CN 202080006210 A CN202080006210 A CN 202080006210A CN 113474749 A CN113474749 A CN 113474749A
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- 238000004891 communication Methods 0.000 description 4
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
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Abstract
A control method, device and system for screen display. Wherein, the method comprises the following steps: receiving a rotation instruction (S102); rotating the original image in the playing window according to the rotation instruction, and judging whether to adjust the size information of the playing window (S104); if the judgment result is yes, adjusting the size information of the playing window, and transmitting the display image redrawn in the adjusted playing window to a screen for displaying (S106), wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted. The method solves the technical problem that screen matching needs to be carried out again when the directions of the LED screen and the display picture which are matched with the screen are not matched.
Description
Technical Field
The application relates to the field of display, in particular to a method, a device and a system for controlling screen display.
Background
After the LED screen is shipped from a factory, the screen needs to be installed and configured according to the screen configuration description of the LED screen, so as to ensure normal use of the LED screen. If the user installs the screen wrongly, or needs to use the screen configured with the screen as the horizontal screen to display the vertical screen image, or needs to use the screen configured with the vertical screen to display the horizontal screen image, the user needs to modify the hardware connecting line and use the professional software to modify the parameters of the screen configuration software, so that the operation is complex, and the professional personnel is required to perform technical support.
Aiming at the problem that the screen needs to be configured again when the direction of the LED screen which is configured and finished in the prior art is not matched with the direction of a display picture, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the application provides a screen display control method, a screen display control device and a screen display control system, which are used for at least solving the technical problem that in the prior art, when the directions of an LED screen which is finished by screen configuration are not matched with the directions of display pictures, screen configuration needs to be carried out again.
According to an aspect of an embodiment of the present application, there is provided a method for controlling screen display, including: receiving a rotation instruction; rotating the playing window according to the rotating instruction, and judging whether to adjust the size information of the playing window; and if so, adjusting the size information of the playing window, and transmitting the adjusted display image in the playing window to a screen to display the display image received by the receiving card, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted.
According to the scheme, the original image in the playing window is rotated, the size information of the playing window is adjusted according to the rotating instruction, the configured LED screen can be directly applied only by rotating and automatically arranging the playing window without re-connecting hardware and modifying screen configuration software parameters, the effect of randomly switching the transverse screen and the vertical screen is achieved, and the problem that the screen needs to be re-configured when the direction of the LED screen which is completed by configuring the screen in the prior art is not matched with the direction of the display picture is solved.
Further, the rotation instruction includes a rotation angle and/or a rotation direction, and the rotating the playing window according to the rotation instruction includes at least one of the following: controlling the playing window to rotate according to the rotating angle indicated in the rotating instruction; and controlling the playing window to rotate according to the rotating direction indicated in the rotating instruction.
Further, the rotation angle is used to indicate an angle of the rotated playing window relative to the non-rotated playing window, and the rotation angle includes: 90 DEG, 180 DEG and 270 DEG, wherein the step of judging whether to adjust the size information of the playing window comprises the following steps: if the rotation angle is 90 degrees or 270 degrees, determining to adjust the size information of the playing window; and if the rotation angle is 180 degrees, determining not to adjust the size information of the playing window.
Further, if the judgment result is that the size information of the playing window is not adjusted, redrawing the display image in the rotated playing window, and transmitting the redrawn display image to a screen for displaying.
Further, the size information includes a first length of the playing window in a first direction of the playing plane and a second length of the playing window in a second direction of the playing plane, wherein the first direction is perpendicular to the second direction, and the adjusting the size information of the playing window includes: determining the first length of the playing window before adjustment as the second length of the playing window after adjustment; and determining the second length of the playing window before adjustment as the first length of the playing window after adjustment.
According to the scheme, the size information of the playing window is adjusted by exchanging the length information and the width information of the playing window, so that the playing window of the playing device configured by the transverse screen can be matched with the display image direction of the vertical screen after being rotated, and the playing window of the playing device configured by the vertical screen can be matched with the display image of the transverse screen after being rotated.
Further, transmitting the display image redrawn in the adjusted play window to a screen for displaying, including: and sending the display image redrawn in the adjusted play window to a logic processing module, wherein the logic processing module intercepts the display image in the play window according to a preset size and sends the intercepted display image to a receiving card.
Further, before transmitting the display image redrawn in the adjusted play window to a screen for display, the display image in the play window is redrawn after adjusting the size information of the play window, which specifically includes: acquiring the relative position of each sub-layer on a parent layer in an unrotated playing window, wherein the parent layer is a next layer adjacent to the sub-layer; and taking the rotated playing window as a root graph layer of the bottommost layer, and sequentially drawing each graph layer according to the relative position of each sub graph layer on the parent graph layer from low to high according to the sequence of the graph layers until all the graph layers are drawn.
According to the scheme, after the playing window is rotated, the display image in the playing window is redrawn, so that the display image can be displayed in the rotated playing window, and the display requirement of a user on the display image is met.
According to an aspect of an embodiment of the present application, there is provided a control method of screen display, in which a play window is displayed in a display area of a screen in a first manner; and responding to a rotation instruction, and displaying the playing window in a second mode in the display area of the screen, wherein the rotation instruction comprises a preset rotation angle, and the playing window in the second mode is rotated by the preset rotation angle relative to the playing window in the first mode.
Further, in the case where the rotation angle is 90 ° or 270 °, the length information and the width information of the first display image and the second display image are opposite; in the case where the rotation angle is 180 °, the first display image is a display image in the playback window displayed in the first manner and the second display image is a display image in the playback window displayed in the second manner, in the opposite orientation in the vertical direction.
According to an aspect of the embodiments of the present application, there is provided a control system for screen display, including a sending card, receiving a rotation instruction, rotating a playing window according to the rotation instruction, and determining whether to adjust size information of the playing window, and if the determination result is that the size information of the rotated playing window is adjusted, transmitting a display image in the adjusted playing window to a receiving card, where the display image in the playing window is redrawn after the size information of the playing window is adjusted; the receiving card is used for receiving the display image sent by the sending card and transmitting the redrawn display image to the screen; and the screen is used for displaying the display image transmitted by the receiving card.
Further, the system comprises: and the logic controller is connected between the sending card and the receiving card and is used for intercepting the display image in the playing window according to the preset size and sending the intercepted display image to the receiving card.
According to an aspect of an embodiment of the present application, there is provided a control apparatus for screen display, including: a receiving module configured to receive a rotation instruction; the rotating module is used for rotating the playing window according to the rotating instruction and judging whether the size information of the playing window is adjusted or not; and the transmission module is set to adjust the size information of the playing window if the judgment result is yes, and transmit the display image redrawn in the adjusted playing window to the screen for displaying, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted.
Further, the rotation instruction includes a rotation angle and/or a rotation direction, and the rotation module includes at least one of: the first control submodule is used for controlling the playing window to rotate according to the rotating angle indicated in the rotating instruction; and the second control submodule is used for controlling the playing window to rotate according to the rotating direction indicated in the rotating instruction.
According to an aspect of the embodiments of the present application, there is provided a storage medium including a stored program, wherein a control method of controlling a device on which the storage medium is located to perform the above-described screen display is performed when the program is executed.
According to an aspect of the embodiments of the present application, there is provided a processor for executing a program, wherein the program executes the control method for screen display described above.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a flowchart of a control method of screen display according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a multimedia box processing a display image;
FIG. 3 is a schematic diagram according to an embodiment of the present application;
fig. 4 is a flowchart of another control method of screen display according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a control system for a screen display according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a control device for screen display according to an embodiment of the present application; and
fig. 7 is a schematic diagram of another control device for screen display according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present application, there is provided an embodiment of a control method for screen display, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that here.
Fig. 1 is a flowchart of a control method of screen display according to an embodiment of the present application, as shown in fig. 1, the method including the steps of:
step S102, receiving a rotation instruction.
Specifically, the rotation instruction may be issued by a user operating on a human-computer interaction interface displayed on the screen, or may be issued by a user operating on a remote controller for controlling the screen, or may be issued by a user on another control device communicating with the screen, for example, a mobile terminal communicating with the screen, or the like.
In an alternative embodiment, a user may call up a control interface displayed on a screen by operating the screen, where the control interface includes a plurality of control controls for the screen, including at least a spin control, and the user may issue a spin instruction to the screen by selecting the spin control in the control interface. At this time, the screen receives a rotation instruction through its touch component.
In another alternative embodiment, the remote control for the user to control the screen has a spin control, and the user can operate the remote control to select the spin control and issue a spin command to the screen. At this time, the screen receives a rotation instruction through an infrared signal.
In yet another alternative embodiment, the screen may be in communication with a mobile terminal, through which the screen may be controlled. In such an example, the user may operate on the mobile terminal to send a rotation instruction to the screen. At this time, the screen receives the rotation command through bluetooth, wireless, etc.
When a user of the screen needs to play multimedia contents in a vertical screen mode, but the screen is configured to be the size of a transverse screen when leaving a factory, in order to avoid complex operations of screen reconfiguration, the user can send a rotation instruction to the screen, so that the effect of playing the vertical screen mode on the screen with the transverse screen is achieved. Similarly, when a user of the screen needs to play multimedia content in a horizontal screen and the screen is already fixedly matched with the vertical screen size when leaving the factory, in order to avoid the complicated operation of reconfiguring the screen, the user can also send a rotation instruction to the screen, so that the effect of playing in the horizontal screen on the screen with the vertical screen is achieved.
And step S104, rotating the playing window according to the rotation instruction, and judging whether to adjust the size information of the playing window.
Specifically, the playing window may be created by a sending card, and the sending card may be disposed in the multimedia box. In the process of displaying the screen, a sending card creates a playing window according to the matched screen size, each frame of video memory picture is transmitted to an FPGA (Field Programmable Gate Array) module, the FPGA module intercepts the picture of the playing window according to the preset matched screen size and transmits interface data to a receiving card, and the screen displays according to the image received by the receiving card.
Fig. 2 is a schematic diagram of a multimedia box for processing a display image, where the multimedia box includes a sending card and an FPGA module, each frame of display memory image sent by the sending card to the receiving card is a full-resolution image, and the FPGA captures the image from the top left corner of the image frame according to a preset screen size, transmits the captured image to the receiving card, and displays the captured image on a screen.
In the above scheme, the sending card is not directly sent to the FPGA module for interception after the playing window is created, but is sent to the FPGA module for interception after judging whether to adjust the size information of the playing window according to the rotation instruction.
The playing window is used for bearing images, and if the playing window is not matched with the matched screen size of the equipment after being rotated, all contents in the playing window are difficult to display, so that the rotated display effect is poor. Therefore, after the playing window is rotated, it is further necessary to determine whether the size information of the playing window needs to be adjusted, so that the rotated playing window can be matched with the screen size of the device.
In an alternative embodiment, in the case of a rectangular screen, the size information of the playing window includes two parts, namely, a length and a width, and if the rotation angle indicated in the rotation instruction is 180 °, the length and the width of the playing window do not need to be changed, whereas if the rotation angle indicated in the rotation instruction is 90 °, or 270 °, the length and the width of the playing window need to be adjusted.
And step S106, if the judgment result is yes, adjusting the size information of the playing window, and transmitting the display image redrawn in the adjusted playing window to a screen for displaying, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted.
When the rotation angle indicated in the rotation instruction is 90 ° or 270 °, the length and the width of the rotated playing frame are exchanged, and since the FPGA captures the display frame and sends the captured display frame to the screen for display, the size and the position of the capture frame are fixed, in order to enable the FPGA to completely capture the display frame in the playing window, the size information of the playing window needs to be adjusted, so that the size information of the playing window is matched with the size information captured by the FPGA, thereby realizing the effect that the size information of the playing window is unchanged, but the display image in the playing window is rotated.
It should be noted that, after the size information of the play window is adjusted, since the play window is rotated before, the display image in the play window is also rotated by redrawing. In an optional embodiment, the image in the playing window usually includes a plurality of layers, and when the image is redrawn, the layers are sequentially drawn from low to high, that is, the layer at the bottom is drawn first, and then the layers at the upper layer are drawn in sequence until each layer in the playing window is drawn. Before the display image is redrawn, the position of each sub-layer in the image on the parent layer of the sub-layer needs to be recorded, wherein the sub-layer is positioned on the parent layer, after the parent layer is drawn, the position of the sub-layer on the parent layer is recalculated, so that the sub-layer is drawn, similar calculation is sequentially performed until all layers are redrawn.
It should be further noted that, in this embodiment, the order of step S104 and step S106 is not limited, that is, the playing window may be rotated first, and then the size information of the playing window is adjusted, or the size information of the playing window may be adjusted first, and then the playing window is rotated. And the step of redrawing the display image is performed after rotating the play window and adjusting the size information of the play window.
And under the condition that the size information of the playing window is determined to be required to be adjusted, after the size information of the playing window is adjusted, the playing window is matched with the matched screen size. At this time, the transmitting card transmits the image in the playing window to the receiving card, and the screen displays the display image received by the receiving card, thereby completing the rotation operation.
As an alternative embodiment, when the user of the screen needs to display the multimedia content in a portrait screen, but the screen is configured to be in a landscape screen size at the time of factory shipment, the user may send a rotation instruction of 90 ° to the screen, so that the displayed image can be displayed in a portrait screen on the screen. Fig. 3 is a schematic diagram of an embodiment of the present application, in conjunction with fig. 3, the screen has been cross-screened for cross-screening the displayed image. And the user needs to display the image on the vertical screen, so that the rotation instruction is sent to the screen, and the sending card matched with the screen can execute the steps, thereby completing the rotation of the image. The transmitting card transmits the adjusted display image in the playing window to the FPGA module, the FPGA module intercepts the image in the playing window and transmits the image to the receiving card, and the receiving card transmits the display image to the screen, so that vertical screen display can be performed on the screen.
It should be noted that if the FPGA module is rotated, the FPGA module only rotates the frame, and the frame with the horizontal screen size is stretched to fill the vertical screen size, or the frame with the vertical screen size is compressed to fill the window with the horizontal screen size. In the scheme of the embodiment, the sending card adjusts the size information of the playing window, so that the image does not need to be stretched or compressed, and the display effect of the image can be ensured.
As can be seen from the above, the above embodiments of the present application receive a rotation command; rotating the playing window according to the rotating instruction, and judging whether to adjust the size information of the playing window; and if so, adjusting the size information of the playing window, and transmitting the adjusted display image in the playing window to a screen for display, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted. According to the scheme, the playing window is rotated, the size information of the playing window is adjusted according to the rotating instruction, so that the configured LED screen can be directly applied only by rotating and automatically arranging the playing window without re-connecting hardware and modifying the software parameters of the matched screen, the effect of randomly switching the transverse screen and the vertical screen is achieved, and the problem that the screen needs to be re-matched when the direction of the LED screen matched with the screen is not matched with the direction of the display picture in the prior art is solved.
As an alternative embodiment, the rotation instruction includes a rotation angle and/or a rotation direction, and the rotating the original image in the playing window according to the rotation instruction includes at least one of the following: controlling the original image in the playing window to rotate according to the rotating angle indicated in the rotating instruction; and controlling the playing window to rotate according to the rotating direction indicated in the rotating instruction.
Specifically, the above-described rotation angle may be a rotation angle with respect to the original image. The angle of rotation here may be multiples of 90 °, for example: 90 °, 180 °, and 270 °.
In an alternative embodiment, 90 °, 180 ° and 270 ° each correspond to a state, when the user selects the rotation of 90 °, the image assumes the state corresponding to 90 °, and when the user selects 180 °, the image is not rotated by 180 ° on the basis of the rotation of 90 °, but is rotated to the state corresponding to 180 °. On the human-computer interaction interface provided for the user, "90 °", "180 °", "270 °", can be displayed, and the user can select according to the requirement.
In another alternative embodiment, instead of prompting an explicit angle of rotation, a display effect rotated at each angle of rotation is displayed on a human interface provided for the user, so that the user can make a visual selection.
According to the scheme, the rotation angle is set in the rotation instruction, so that the image can rotate according to the specified rotation angle, and the requirement of a user on screen rotation is met at one time.
The rotation direction is a designated direction, for example, a clockwise rotation is designated, and each rotation instruction performs a clockwise rotation on the basis of the original image.
In another alternative embodiment, the rotation direction may be specified by a user, and different rotation effects may be obtained when the same rotation angle is matched with different rotation directions, so that the user may control the image to rotate in different directions according to actual display requirements.
As an alternative embodiment, the rotation angle is used to indicate the angle of the rotated playing window relative to the non-rotated playing window, and the rotation angle includes: 90 DEG, 180 DEG and 270 DEG, wherein the step of judging whether to adjust the size information of the playing window comprises the following steps: if the rotation angle is 90 degrees or 270 degrees, determining to adjust the size information of the playing window; and if the rotation angle is 180 degrees, determining not to adjust the size information of the playing window.
In the above scheme, if the rotation angle is 90 ° or 270 °, the image displayed by the original vertical screen is rotated to be displayed by the horizontal screen, or the image displayed by the original horizontal screen is rotated to be displayed by the vertical screen. According to the scheme, the size information of the playing window is adjusted when the rotating angle is 90 degrees or 270 degrees, so that the playing window can correspond to the display image after being rotated.
And if the rotation angle is 180 degrees, the image displayed by the original vertical screen is still displayed by the vertical screen after being rotated, and the image displayed by the original transverse screen is still displayed by the transverse screen after being rotated.
As an optional embodiment, if the determination result is that the size information of the playing window is not adjusted, redrawing the display image in the rotated playing window, and transmitting the redrawn display image to the screen for display.
In the above scheme, if the determination result is that the size information of the playing window is not adjusted, the display image in the rotated playing window may be directly redrawn, and the redrawn display image is output to the receiving card for displaying on the screen.
Here, the manner of redrawing the display image in the rotated playback window is the same as the manner of redrawing the display image in the playback window after the size information is adjusted, and details are not repeated here.
In an alternative embodiment, the user is unfamiliar with the installation of the flat cable of the screen, and the screen is installed upside down, so that the display of the images is inverted, in order to prevent the screen from being detached and installed again, the user can control the image to rotate 180 degrees, so that the user can see the images of the screen forward when watching the screen, in this case, the newly drawn display images are transmitted to the receiving card and displayed by the screen after the display images in the rotated playing window are directly redrawn without adjusting the size information of the playing window.
As an alternative embodiment, the size information includes a first length of the playing window in a first direction of the playing plane and a second length of the playing window in a second direction of the playing plane, where the first direction is perpendicular to the second direction, and the adjusting the size information of the playing window includes: determining the first length of the playing window before adjustment as the second length of the playing window after adjustment; and determining the second length of the playing window before adjustment as the first length of the playing window after adjustment.
Specifically, the first direction and the second direction of the playing plane may be a vertical direction and a horizontal direction, respectively, and the first length in the first direction and the second length in the second direction are a length and a width, respectively.
In an alternative embodiment, the image in the playing window is rotated by 90 °, and the original width of the playing window is adjusted to the current length and the original length is adjusted to the current width in order to match the playing window with the image, so that the playing window is adjusted, and the adjusted playing window corresponds to the image.
As an alternative embodiment, the transmitting the display image redrawn in the adjusted play window to the receiving card includes: and sending the display image redrawn in the adjusted play window to a logic processing module, wherein the logic processing module intercepts the display image in the play window according to a preset size and sends the intercepted display image to a receiving card.
Specifically, the logic processing module may be an FPGA module, and is configured to intercept the play window.
In the scheme, the sending card sends the display image in the playing window to the logic processing module, the logic processing module intercepts the display image in the playing window according to the size of the matched screen and sends the intercepted image to the receiving card, and the screen displays the image according to the image received by the receiving card, so that the rotation of the image is completed.
As an optional embodiment, before transmitting the display image redrawn in the adjusted play window to the screen for displaying, the method further includes: the redrawing of the display image in the playing window is carried out after the size information of the playing window is adjusted, and the method specifically comprises the following steps: acquiring the relative position of each sub-layer on a parent layer in an unrotated playing window, wherein the parent layer is a next layer adjacent to the sub-layer; and taking the playing window after the size information is adjusted as a root graph layer at the bottommost layer, and sequentially drawing each graph layer according to the relative position of each sub-graph layer on the parent graph layer from low to high according to the sequence of the graph layers until all the graph layers are drawn.
In the above scheme, the playing window includes multiple layers, the playing window is a root layer of the layers, the rotation of the playing window is the rotation of the root layer, and the display image is redrawn after the playing window is rotated. When the layers are redrawn, the layers are sequentially drawn from low to high, namely, the layer at the bottommost layer is drawn first, and then the layers at the upper layer are drawn in sequence until each layer in the playing window is drawn.
Specifically, before drawing, the relative position of each sub-image layer in the image on the parent image layer needs to be recorded, after the parent image layer is drawn, the position of the drawn sub-image layer on the parent image layer is recalculated according to the position of the pre-recorded sub-image layer on the parent image layer, so that the sub-image layers are drawn, and similar calculation is sequentially performed until all the image layers are drawn.
Example 2
According to an embodiment of the present application, another embodiment of a method for controlling screen display is provided, and fig. 4 is a flowchart of another method for controlling screen display according to an embodiment of the present application, which is shown in fig. 4 and includes the following steps:
in step S402, a play window is displayed in a first manner in a display area of a screen.
Specifically, the first mode may be a horizontal screen display mode or a vertical screen display mode.
Step S404, in response to a rotation instruction, displaying the play window in a second mode in the display area of the screen, where the rotation instruction includes a preset rotation angle, and the play window in the second mode is rotated by the preset rotation angle with respect to the play window in the first mode.
Specifically, the second mode is a display mode different from the first mode, and may be a display mode in which the playback content is rotated in addition to the first mode.
In an alternative embodiment, the rotation angle of the first mode is 0 °, that is, the first mode is the original display mode and is not rotated, and on this basis, the user sends a rotation instruction of rotating 90 ° to the screen, and the screen rotates according to the rotation instruction, so that the playing window can be displayed in the display area of the screen in the second mode. The rotation of the playing window can be realized by any one of the screen display control methods in embodiment 1, and details are not described here.
As an alternative embodiment, in the case where the rotation angle is 90 ° or 270 °, the length information and the width information of the first display image and the second display image are opposite; in the case where the rotation angle is 180 °, the first display image is a display image in the playback window displayed in the first manner and the second display image is a display image in the playback window displayed in the second manner, in the opposite orientation in the vertical direction.
Example 3
According to an embodiment of the present application, an embodiment of a control system for screen display is provided, and fig. 5 is a schematic diagram of a control system for screen display according to an embodiment of the present application, and with reference to fig. 5, the system includes:
the sending card 50 receives the rotation instruction, rotates the playing window according to the rotation instruction, judges whether the size information of the playing window is adjusted or not, if so, adjusts the size information of the rotated playing window and transmits the adjusted display image in the playing window to the receiving card, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted;
a receiving card 52 for receiving the display image transmitted by the transmitting card and transmitting the redrawn display image to a screen;
and a screen 54 for displaying the display image transmitted by the receiving card.
Specifically, the rotation instruction may be issued by a user operating on a human-computer interaction interface displayed on the screen, or may be issued by a user operating on a remote controller for controlling the screen, or may be issued by a user on another control device communicating with the screen, for example, a mobile terminal communicating with the screen, or the like.
In an alternative embodiment, a user may call up a control interface displayed on a screen by operating the screen, where the control interface includes a plurality of control controls for the screen, including at least a spin control, and the user may issue a spin instruction to the screen by selecting the spin control in the control interface. At this time, the screen receives a rotation instruction through its touch component.
In another alternative embodiment, the remote control for the user to control the screen has a spin control, and the user can operate the remote control to select the spin control and issue a spin command to the screen. At this time, the screen receives a rotation instruction through an infrared signal.
In yet another alternative embodiment, the screen may be in communication with a mobile terminal, through which the screen may be controlled. In such an example, the user may operate on the mobile terminal to send a rotation instruction to the screen. At this time, the screen receives the rotation command through bluetooth, wireless, etc.
When a user of the screen needs to play multimedia contents in a vertical screen mode, but the screen is configured to be the size of a transverse screen when leaving a factory, in order to avoid complex operations of screen reconfiguration, the user can send a rotation instruction to the screen, so that the effect of playing the vertical screen mode on the screen with the transverse screen is achieved. Similarly, when a user of the screen needs to play multimedia content in a horizontal screen and the screen is already fixedly matched with the vertical screen size when leaving the factory, in order to avoid the complicated operation of reconfiguring the screen, the user can also send a rotation instruction to the screen, so that the effect of playing in the horizontal screen on the screen with the vertical screen is achieved.
The above-mentioned play window may be created by a transmission card, which may be provided in the multimedia box. In the process of displaying the screen, a sending card creates a playing window according to the matched screen size, each frame of video memory picture is transmitted to an FPGA (Field Programmable Gate Array) module, the FPGA module intercepts the picture of the playing window according to the preset matched screen size and transmits interface data to a receiving card, and the screen displays according to the image received by the receiving card.
Fig. 2 is a schematic diagram of a multimedia box for processing a display image, where the multimedia box includes a sending card and an FPGA module, each frame of a video memory picture sent by the sending card to a receiving card is a full-resolution picture, and the FPGA is intercepted from the upper left corner of the picture frame according to a preset screen size, transmitted to the receiving card, and displayed on a screen.
In the above scheme, the sending card is not directly sent to the FPGA module for interception after the playing window is created, but is rotated according to the rotation instruction, and then the size information of the playing window is judged whether to be adjusted or not and is sent to the FPGA module for interception.
The playing window is used for bearing images, and if the playing window is not matched with the display images after being rotated, all contents are difficult to display through the playing window, so that the rotated display effect is poor. Therefore, after the playing window is rotated, it is necessary to determine whether the size information of the playing window needs to be adjusted.
In an alternative embodiment, in the case that the screen is rectangular, the size information of the playing window includes two parts, namely, a length and a width, and if the rotation angle indicated in the rotation instruction is 180 °, the length and the width of the playing window do not need to be changed, whereas if the rotation angle indicated in the rotation instruction is 90 °, or 270 °, the length and the width of the playing window need to be adjusted.
And under the condition that the size information of the playing window is determined to be required to be adjusted, after the size information of the playing window is adjusted, the playing window is matched with the image displayed by the playing window. At this time, the transmitting card transmits the image in the playing window to the receiving card, and the screen displays the display image received by the receiving card, thereby completing the rotation operation.
As an alternative embodiment, when the user of the screen needs to display the multimedia content in a portrait screen, but the screen is configured to be in a landscape screen size at the time of factory shipment, the user may send a rotation instruction of 90 ° to the screen, so that the displayed image can be displayed in a portrait screen on the screen. Fig. 3 is a schematic diagram of an embodiment of the present application, in conjunction with fig. 3, the screen has been cross-screened for cross-screening the displayed image. And the user needs to display the image on the vertical screen, so that the rotation instruction is sent to the screen, and the sending card matched with the screen can execute the steps, thereby completing the rotation of the image. The transmitting card transmits the adjusted display image in the playing window to the FPGA module, the FPGA module intercepts the image in the playing window and transmits the image to the receiving card, and the receiving card transmits the display image to the screen, so that vertical screen display can be performed on the screen.
It should be noted that if the FPGA module is rotated, the FPGA module only rotates the frame, and the frame with the horizontal screen size is stretched to fill the vertical screen size, or the frame with the vertical screen size is compressed to fill the window with the horizontal screen size. In the scheme of the embodiment, the sending card rotates the image and adjusts the size information of the playing window, so that the image does not need to be stretched or compressed, and the display effect of the rotated image can be ensured.
As can be seen from the above, the control system for screen display in the above embodiment of the present application receives the rotation instruction through the receiving card; rotating the playing window according to the rotating instruction, and judging whether to adjust the size information of the playing window; and if so, adjusting the size information of the playing window, and transmitting the adjusted display image in the playing window to the receiving card, wherein the screen displays the display image received by the receiving card. According to the scheme, the playing window is rotated, the size information of the playing window is adjusted according to the rotating instruction, so that the configured LED screen can be directly applied only by rotating and automatically arranging the playing window without re-connecting hardware and modifying the software parameters of the matched screen, the effect of randomly switching the transverse screen and the vertical screen is achieved, and the problem that the screen needs to be re-matched when the direction of the LED screen matched with the screen is not matched with the direction of the display picture in the prior art is solved.
As an alternative embodiment, the system comprises: and the logic controller is connected between the sending card and the receiving card and is used for intercepting the display image in the playing window according to the preset size and sending the intercepted display image to the receiving card.
It should be noted that the sending card in this embodiment also allows any step in embodiment 1 to be executed, and details are not described here.
Example 4
According to an embodiment of the present application, there is provided an embodiment of a control device for screen display, and fig. 6 is a schematic diagram of a control device for screen display according to an embodiment of the present application, as shown in fig. 6, the device includes the following:
the receiving module 60 is configured to receive a rotation instruction.
And the rotating module 62 is configured to rotate the playing window according to the rotating instruction and determine whether to adjust the size information of the playing window.
And the transmission module 64 is configured to adjust the size information of the playing window if the determination result is yes, and transmit the display image redrawn in the adjusted playing window to the screen for display, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted.
As an alternative embodiment, the rotation instruction includes a rotation angle and/or a rotation direction, and the rotation module includes at least one of: the first control submodule is used for controlling the original image in the playing window to rotate according to the rotating angle indicated in the rotating instruction; and the second control submodule is used for controlling the original image in the playing window to rotate according to the rotating direction indicated in the rotating instruction.
As an alternative embodiment, the rotation angle is used to indicate the angle of the rotated playing window relative to the non-rotated playing window, and the rotation angle includes: 90 °, 180 °, 270 °, wherein the rotation module comprises: the first determining submodule is used for determining and adjusting the size information of the playing window if the rotation angle is 90 degrees or 270 degrees; and the second determining sub-module is used for determining not to adjust the size information of the playing window if the rotation angle is 180 degrees.
As an optional embodiment, if the determination result is that the size information of the playing window is not adjusted, the display image in the rotated playing window is redrawn, and the redrawn display image is transmitted to the screen for display.
As an optional embodiment, the size information includes a first length of the playing window in a first direction of the playing plane and a second length of the playing window in a second direction of the playing plane, where the first direction is perpendicular to the second direction, the apparatus further includes an adjusting module, and the adjusting module includes: the third determining submodule is used for determining that the first length of the playing window before adjustment is the second length of the playing window after adjustment; and the fourth determining submodule is used for determining that the second length of the playing window before adjustment is the first length of the playing window after adjustment.
As an alternative embodiment, the transmission module comprises: and the sending submodule is used for sending the display image redrawn in the adjusted playing window to the logic processing module, wherein the logic processing module intercepts the display image in the playing window according to the preset size and sends the intercepted display image to the receiving card.
As an alternative embodiment, the apparatus further comprises: the drawing module is used for redrawing the display image in the playing window after the size information of the playing window is adjusted before the display image redrawn in the adjusted playing window is transmitted to a screen for displaying, and the drawing module specifically comprises: the obtaining submodule is used for obtaining the relative position of each sub-layer on a parent layer in the non-rotated playing window, wherein the parent layer is the next layer adjacent to the sub-layer; and the drawing submodule is used for drawing each layer in sequence according to the relative position of each sub-layer on the parent layer from low to high by taking the rotated playing window as the root layer of the bottommost layer until all layers are drawn.
Example 5
According to an embodiment of the present application, there is provided another embodiment of a control device for screen display, and fig. 7 is a schematic diagram of another control device for screen display according to an embodiment of the present application, as shown in fig. 7, the device includes the following:
a first display module 70 for displaying the play window in a first manner in a display area of the screen.
The second display module 72 is configured to display the play window in a second manner in the display area of the screen in response to a rotation instruction, where the rotation instruction includes a preset rotation angle, and the play window in the second manner is rotated by the preset rotation angle with respect to the play window in the first manner.
As an alternative embodiment, in the case where the rotation angle is 90 ° or 270 °, the length information and the width information of the first display image and the second display image are opposite; in the case where the rotation angle is 180 °, the first display image is a display image in the playback window displayed in the first manner and the second display image is a display image in the playback window displayed in the second manner, in the opposite orientation in the vertical direction.
Example 6
According to an embodiment of the present application, there is provided a storage medium including a stored program, wherein when the program runs, a device in which the storage medium is located is controlled to execute the control method for screen display according to any one of embodiments 1.
Example 7
According to an embodiment of the present application, there is provided a processor configured to execute a program, wherein the program executes the control method of screen display according to embodiment 1 when running.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, 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 technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical 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 units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
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, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: 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.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (15)
1. A control method of screen display includes:
receiving a rotation instruction;
rotating a playing window according to the rotating instruction, and judging whether to adjust the size information of the playing window;
and if so, adjusting the size information of the playing window, and transmitting the adjusted display image in the playing window to the screen for displaying, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted.
2. The method according to claim 1, wherein the rotation instruction comprises a rotation angle and/or a rotation direction, and the rotating the playing window according to the rotation instruction comprises at least one of:
controlling the playing window to rotate according to the rotating angle indicated in the rotating instruction;
and controlling the playing window to rotate according to the rotating direction indicated in the rotating instruction.
3. The method of claim 2, wherein the rotation angle is used to represent an angle of the rotated playing window relative to the non-rotated playing window, and the rotation angle comprises: 90 °, 180 °, 270 °, wherein the step of determining whether to adjust the size information of the playing window comprises:
if the rotation angle is 90 degrees or 270 degrees, determining to adjust the size information of the playing window;
and if the rotation angle is 180 degrees, determining not to adjust the size information of the playing window.
4. The method of claim 1, wherein if the size information of the playing window is not adjusted as a result of the determination, redrawing the rotated display image in the playing window, and transmitting the redrawn display image to the screen for display.
5. The method of claim 1, wherein the size information comprises a first length of the playing window in a first direction of a playing plane and a second length of the playing window in a second direction of the playing plane, wherein the first direction is perpendicular to the second direction, and adjusting the size information of the playing window comprises:
determining the first length of the playing window before adjustment as the second length of the playing window after adjustment; and
and determining the second length of the playing window before adjustment as the first length of the playing window after adjustment.
6. The method of claim 1, wherein transmitting the redrawn display image within the adjusted playback window to the screen for display comprises:
and sending the display image redrawn in the adjusted play window to a logic processing module, wherein the logic processing module intercepts the display image in the play window according to a preset size and sends the intercepted display image to a receiving card.
7. The method of claim 1, wherein prior to transmitting the redrawn display image within the adjusted playback window to the screen for display, the method further comprises:
the redrawing of the display image in the playing window after the size information of the playing window is adjusted specifically includes:
acquiring the relative position of each sub-layer on a parent layer in an unrotated playing window, wherein the parent layer is a next layer adjacent to the sub-layer;
and taking the playing window after the size information is adjusted as a root graph layer at the bottommost layer, and sequentially drawing each graph layer according to the relative position of each sub-graph layer on the parent graph layer from low to high according to the sequence of the graph layers until all the graph layers are drawn.
8. A control method of screen display includes:
displaying a play window in a first manner in a display area of the screen;
and responding to a rotation instruction, and displaying the playing window in a second mode in a display area of the screen, wherein the rotation instruction comprises a preset rotation angle, and the playing window in the second mode rotates relative to the playing window in the first mode by the preset rotation angle.
9. The method according to claim 8, wherein in the case where the rotation angle is 90 ° or 270 °, the length information and the width information of the first display image are opposite to those of the second display image; in the case where the rotation angle is 180 °, the first display image is a display image in the playback window displayed in the first manner and the second display image is a display image in the playback window displayed in the second manner, in which the orientations of the first display image and the second display image in the vertical direction are opposite to each other.
10. A control system for a screen display, comprising:
the sending card receives a rotation instruction, rotates a playing window according to the rotation instruction, judges whether the size information of the playing window is adjusted or not, and transmits a display image in the adjusted playing window to the receiving card if the judgment result is that the size information of the rotated playing window is adjusted, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted;
the receiving card is used for receiving the display image sent by the sending card and transmitting the redrawn display image to a screen;
and the screen is used for displaying the display image transmitted by the receiving card.
11. The system of claim 10, wherein the system comprises:
and the logic controller is connected between the sending card and the receiving card and is used for intercepting the display image in the playing window according to a preset size and sending the intercepted display image to the receiving card.
12. A control device for screen display, comprising:
a receiving module configured to receive a rotation instruction;
the rotating module is used for rotating the playing window according to the rotating instruction and judging whether the size information of the playing window is adjusted or not;
and the transmission module is set to adjust the size information of the playing window if the judgment result is yes, and transmit the display image redrawn in the adjusted playing window to the screen for displaying, wherein the display image in the playing window is redrawn after the size information of the playing window is adjusted.
13. The apparatus of claim 12, wherein the rotation instructions comprise a rotation angle and/or a rotation direction, the rotation module comprising at least one of: the first control submodule is used for controlling the playing window to rotate according to the rotating angle indicated in the rotating instruction; and the second control submodule is used for controlling the playing window to rotate according to the rotating direction indicated in the rotating instruction.
14. A storage medium, wherein the storage medium includes a stored program, and wherein a device in which the storage medium is located is controlled to execute the control method of screen display according to any one of claims 1 to 9 when the program is executed.
15. A processor, wherein the processor is configured to execute a program, wherein the program executes to execute the control method of the screen display according to any one of claims 1 to 9.
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| CN113474749B CN113474749B (en) | 2024-02-09 |
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| CN113190202A (en) * | 2021-05-25 | 2021-07-30 | 海信视像科技股份有限公司 | Data display method and display equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113190202A (en) * | 2021-05-25 | 2021-07-30 | 海信视像科技股份有限公司 | Data display method and display equipment |
| CN113190202B (en) * | 2021-05-25 | 2023-01-06 | Vidaa(荷兰)国际控股有限公司 | Data display method and display equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021184369A1 (en) | 2021-09-23 |
| CN113474749B (en) | 2024-02-09 |
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