CN113485667A - Method for screen projection display of terminal, terminal and storage medium - Google Patents
Method for screen projection display of terminal, terminal and storage medium Download PDFInfo
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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
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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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]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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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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Abstract
The embodiment of the invention discloses a method for screen projection display of a terminal, the terminal and a storage medium, and belongs to the technical field of screen projection display. The method comprises the following steps: when the large-screen end is subjected to screen projection display, carrying out picture recognition on a display interface of the large-screen end according to a preset mode; and if the result of the picture identification is black screen display, changing the drawing mode of the OpenGL image at the large screen end from a default hardware display card drawing mode to a software drawing mode so as to realize screen projection display at the large screen end again. According to the technical scheme, the technical problems that the screen projection and blackout phenomena cannot be timely and correspondingly processed by the existing terminal screen projection display method, and user experience is greatly influenced can be solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of screen projection display, in particular to a method for screen projection display of a terminal, the terminal and a storage medium.
Background
When a mobile phone computer is used for screen projection, OpenGL (Open Graphics Library or Open Graphics Library) is generally adopted for drawing an image, because the image drawing is relatively high in consumption performance, in order to achieve good screen projection real-time experience, reduce cpu load and the like, a hardware acceleration drawing mode is adopted by default for the drawing of the OpenGL, so that a black screen effect can be generated on some computer models in the screen projection process, namely a screen projection picture of the computer is displayed as a black piece, because OpenGL supported by a video card version of a corresponding computer is too old and does not support a shader writing method of the current mobile phone, and meanwhile, because the error report is in a shader code, the normal program error report can be detected and identified, the mobile phone cannot know the bottom support of the current video card, and cannot timely deal with the black screen projection phenomenon, greatly impacting the user experience.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a method for screen projection display of a terminal, the terminal and a storage medium, and aims to solve the technical problems that the screen projection black screen phenomenon cannot be timely and correspondingly processed by the conventional method for screen projection display of the terminal, and user experience is greatly influenced.
In order to achieve the above object, an embodiment of the present invention provides a method for screen projection display of a terminal, where the method includes the following steps: when the large-screen end is subjected to screen projection display, carrying out picture recognition on a display interface of the large-screen end according to a preset mode; and if the picture identification result is black screen display, changing the OpenGL image drawing mode of the large screen end from a default hardware display card drawing mode to a software drawing mode so as to realize screen projection display of the large screen end again.
Optionally, when the large-screen end is projected for display, the step of performing picture recognition on the display interface of the large-screen end according to a preset mode includes: when a large screen end is subjected to screen projection display, calling a screen capture function of the large screen end to obtain a plurality of area screen captures of a display interface of the large screen end; and carrying out image recognition on the plurality of region screenshots, and judging that the image recognition result is black screen display when the image recognition result is a pure black image.
Optionally, the step of calling the screenshot function of the large screen end to obtain a plurality of area screenshots of the display interface of the large screen end specifically includes: and calling a screenshot function of the large screen end, and performing multiple screenshots on a preset area of a display interface of the large screen end according to a preset time interval so as to obtain multiple area screenshots.
Optionally, after the step of calling the screenshot function of the large screen end to obtain a plurality of area screenshots of the display interface of the large screen end, the method further includes: and carrying out image recognition on the plurality of area screenshots, and if any image recognition result is a non-pure black image, judging that the image recognition result is non-black screen display.
Optionally, the step of performing image recognition on a plurality of the region screenshots specifically includes: and extracting the RGB value of each region screenshot to detect whether each pixel point of the corresponding region screenshot is black or not, and judging that the corresponding region screenshot is a pure black image when each pixel point of the corresponding region screenshot is black.
Optionally, the step of performing image recognition on a plurality of the region screenshots further specifically includes: and if any pixel point of the corresponding area screenshot is non-black, judging that the corresponding area screenshot is a non-pure black image.
Optionally, the step of changing the OpenGL image drawing mode of the large-screen end from a default hardware graphics card drawing mode to a software drawing mode to re-implement the screen projection display of the large-screen end specifically includes: and changing the OpenGL image drawing mode of the large-screen end from a default hardware graphics card drawing mode to a software drawing mode, and simultaneously reducing the frame rate of the large-screen end to realize screen projection display of the large-screen end again and send corresponding pop-up frame reminding to a user.
Optionally, after the step of performing picture recognition on the display interface of the large screen end according to a preset mode when the large screen end is projected for display, the method further includes: and if the picture identification result is non-black screen display, the current OpenGL image drawing mode of the large screen end does not need to be changed, and the current screen projection display of the large screen end is maintained.
In addition, in order to achieve the above object, an embodiment of the present invention further provides a terminal, where the terminal includes a memory, a processor, a program stored in the memory and executable on the processor, and a data bus for implementing connection communication between the processor and the memory, and the program implements the steps of the above method when executed by the processor.
In addition, to achieve the above object, an embodiment of the present invention further proposes a storage medium for computer-readable storage, where one or more programs are stored, and the one or more programs are executable by one or more processors to implement the steps of the above method.
According to the method, the terminal and the storage medium for screen projection display of the terminal provided by the embodiment of the invention, when the large-screen end is subjected to screen projection display, the display interface of the large-screen end is subjected to picture identification according to a preset mode, and when the picture identification result is black screen display, the OpenGL image drawing mode of the large-screen end is changed from a default hardware display card drawing mode to a software drawing mode so as to realize screen projection display of the large-screen end again. Therefore, the method for screen projection display of the terminal can identify whether the current program drawing is wrong or not (namely whether black screen display appears or not) in time through picture identification, and provide a corresponding compatible scheme (namely, the OpenGL image drawing mode of the large screen end is changed from the default hardware display card drawing mode to the software drawing mode) in time when the current program drawing is wrong (namely, the large screen end appears black screen display), so that the picture of the large screen end can be displayed normally (namely, the black screen phenomenon is avoided). Therefore, the method for screen projection display of the terminal can ensure that a user can normally use screen projection application on incompatible computers such as a display card, namely, the method for screen projection display of the terminal can effectively solve the technical problems that the screen projection black screen phenomenon cannot be timely and correspondingly processed by the conventional method for screen projection display of the terminal, and user experience is greatly influenced.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention.
Fig. 2 is a diagram of a communication network system architecture on which the mobile terminal shown in fig. 1 is based.
Fig. 3 is a flowchart of a method for screen projection display of a terminal according to an embodiment of the present invention.
Fig. 4 is a detailed flowchart of step S110 of the method for displaying the screen projection of the terminal shown in fig. 3.
Fig. 5 is a block diagram of a terminal according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be configured to receive and transmit a signal during a message transmission or a call, and specifically, receive a downlink message from a base station and then process the received downlink message to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The display unit 106 is used to display a message input by the user or a message provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character messages and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives a touch message from the touch sensing device, converts the touch message into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute a command sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data messages, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.
In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.
Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.
Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.
The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.
The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific messages regarding service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.
Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.
Example one
As shown in fig. 3, an embodiment of the present invention provides a method for screen projection display of a terminal, which specifically includes the following steps:
step S110: and when the large screen end is projected for display, carrying out picture recognition on the display interface of the large screen end according to a preset mode.
Specifically, when a general terminal performs screen projection display on a large screen end, for good screen projection real-time experience, cpu load reduction and the like, a hardware-accelerated drawing mode is adopted by a general OpenGL drawing image by default, so that in the screen projection process, a black screen effect is generated on some computer models, that is, a screen projection picture of a computer is displayed as a black piece, because OpenGL supported by a display card version of the corresponding computer is too old, a shader writing method of a current mobile phone is not supported, and meanwhile, because the error reporting is performed in a shader (shader code), the error reporting cannot be detected and identified by a normal program, the terminal cannot know that the display card of the current large screen end is supported by the shader code, so that the screen projection black screen phenomenon cannot be timely handled, and user experience is greatly influenced.
To address the above-mentioned phenomenon, the method for screen projection display of a terminal in the embodiments of the present invention includes the first step of identifying an error in time when the terminal performs screen projection display on a large screen, but because the error belongs to an error in an OpenGL instruction report executed by a display card, a terminal program cannot be detected, and therefore, a program identification method is not feasible, so that the terminal can adopt other schemes, and because nothing is drawn, that is, an interface is a black screen, the terminal can identify whether a current program drawing error occurs (that is, whether black screen display occurs) in time in a picture identification method, that is, when the terminal performs screen projection display on the large screen, the terminal performs picture identification on a display interface of the large screen according to a preset method, as shown in fig. 4, and the specific process is as follows:
step S111: when the large-screen end is subjected to screen projection display, the screen capture function of the large-screen end is called to obtain a plurality of area screen captures of the display interface of the large-screen end.
Step S112: and carrying out image recognition on the screenshots of the plurality of regions, and judging that the result of the image recognition is black screen display when the result of the image recognition is a pure black image.
Step S113: and carrying out image recognition on the multiple region screenshots, and if any image recognition result is a non-pure black image, judging that the image recognition result is non-black screen display.
Namely, the method can consider that a small area (namely an area screenshot) is obtained by screenshot of a current screen shooting window (namely a display interface of a large screen end), then image recognition is carried out on the small area to judge whether the small area is a pure black image or not, screenshot is carried out once every few seconds, and if the image recognition results of multiple area screenshot are all pure black images, the fact that the current interface is displayed in a black screen mode can be shown, namely, the result of the image recognition of the steps of the method is displayed in the black screen mode.
The specific implementation process of calling the screenshot function of the large-screen end to obtain the area screenshots of the display interfaces of the large-screen end in the steps of the method is as follows: and calling a screenshot function of the large screen end, and performing multiple screenshots on a preset area of a display interface of the large screen end according to a preset time interval to obtain multiple area screenshots. The specific implementation process of image recognition on multiple region screenshots in the steps of the method is as follows: and extracting RGB values of each region screenshot to detect whether each pixel point of the corresponding region screenshot is black or not, judging that the corresponding region screenshot is a pure black image when each pixel point of the corresponding region screenshot is black, and judging that the corresponding region screenshot is a non-pure black image if any pixel point of the corresponding region screenshot is non-black.
Taking a large screen end as an example of a computer, we can call an gdi related interface of a window to perform window screenshot, the area is set as an area of 100 × 100 at the upper left corner (i.e., the preset area), here, whether the area is a pure black area is identified, the RGB values of the picture (i.e., the area screenshot) can be directly extracted, whether the RGB values are equal to black RGB (0, 0, 0) is checked, if each pixel point is found to be equal to black, it is determined that the entire area is black, that is, the corresponding area screenshot is a pure black image, and when any pixel point is non-black (i.e., RGB (0, 0, 0) whose RGB value is not equal to black), the corresponding area screenshot is determined to be a non-pure black image. In order to provide identification accuracy, the current picture identification result is judged to be displayed as a black screen only when the image identification results of the multiple region screenshots are all pure black images, and the current picture identification result is judged to be displayed as a non-black screen when any one image identification result is a non-pure black image.
Step S120: and if the picture identification result is that the screen is displayed in a black screen mode, changing the OpenGL image drawing mode of the large screen end from a default hardware display card drawing mode to a software drawing mode so as to realize screen projection display of the large screen end again.
Specifically, when the result of the picture identification is judged to be black screen display through the steps of the method, it is indicated that the current program cannot be drawn by using the hardware of the code display card of the loader, so a compatible scheme needs to be considered at this time, and at least the picture can be normally displayed. At this time, the preferred mode is that the OpenGL image rendering mode of the large screen end is changed from the default hardware graphics card rendering mode to the software rendering mode, so as to implement the screen projection display of the large screen end again, and meanwhile, since the software rendering is set under this condition, the cpu consumed by the large screen end is too high, so that the frame rate of the image of the large screen end needs to be reduced, so as to reduce the load of the cpu of the large screen end, and a corresponding pop-up frame prompt needs to be sent to the user, so as to prompt the user that the current graphics card of the large screen end does not support hardware acceleration, and suggest the user to improve the graphics card configuration of the large screen end, therefore, the specific process is as follows: the method comprises the steps of changing an OpenGL image drawing mode of a large-screen end from a default hardware graphics card drawing mode to a software drawing mode, reducing the frame rate of a picture of the large-screen end to achieve screen projection display of the large-screen end again, and sending corresponding pop-up frame reminding to a user.
By means of the method, screen projection display at the large screen end is achieved again, and users can be guaranteed to use screen projection application normally on incompatible computers such as display cards.
In addition, when the result of the picture identification is judged to be non-black screen display through the steps of the method, the current screen projection display is normal, the current program can be drawn and used by using the code display card hardware of the shader, and a new compatible scheme does not need to be considered at the moment.
Example two
As shown in fig. 5, a second embodiment of the present invention provides a terminal 20, where the terminal 20 includes a memory 21, a processor 22, a program stored in the memory and capable of running on the processor, and a data bus 23 for implementing connection communication between the processor 21 and the memory 22, where the program is executed by the processor to implement the steps of the method for screen projection display of the terminal in the first embodiment, which are described above specifically and are not described herein again.
It should be noted that the embodiment of the terminal 20 and the first method embodiment of the present invention belong to the same concept, and specific implementation processes thereof are detailed in the first method embodiment, and technical features in the first method embodiment are correspondingly applicable in the embodiment of the terminal 20, which is not described herein again.
EXAMPLE III
A third embodiment of the present invention provides a storage medium for computer-readable storage, where the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the specific steps of the method for screen projection display of a terminal in the first embodiment.
It should be noted that the storage medium and the first method embodiment belong to the same concept, and specific implementation processes thereof are detailed in the first method embodiment, and technical features in the first method embodiment are correspondingly applicable in the storage medium embodiment, which is not described herein again.
According to the method, the terminal and the storage medium for screen projection display of the terminal provided by the embodiment of the invention, when the large-screen end is subjected to screen projection display, the display interface of the large-screen end is subjected to picture identification according to a preset mode, and when the picture identification result is black screen display, the OpenGL image drawing mode of the large-screen end is changed from a default hardware display card drawing mode to a software drawing mode so as to realize screen projection display of the large-screen end again. Therefore, the method for screen projection display of the terminal can identify whether the current program drawing is wrong or not (namely whether black screen display appears or not) in time through picture identification, and provide a corresponding compatible scheme (namely, the OpenGL image drawing mode of the large screen end is changed from the default hardware display card drawing mode to the software drawing mode) in time when the current program drawing is wrong (namely, the large screen end appears black screen display), so that the picture of the large screen end can be displayed normally (namely, the black screen phenomenon is avoided). Therefore, the method for screen projection display of the terminal can ensure that a user can normally use screen projection application on incompatible computers such as a display card, namely, the method for screen projection display of the terminal can effectively solve the technical problems that the screen projection black screen phenomenon cannot be timely and correspondingly processed by the conventional method for screen projection display of the terminal, and user experience is greatly influenced.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for screen projection display of a terminal is characterized by comprising the following steps:
when the large-screen end is subjected to screen projection display, carrying out picture recognition on a display interface of the large-screen end according to a preset mode;
and if the picture identification result is black screen display, changing the OpenGL image drawing mode of the large screen end from a default hardware display card drawing mode to a software drawing mode so as to realize screen projection display of the large screen end again.
2. The method according to claim 1, wherein the step of performing picture recognition on the display interface of the large screen end according to a preset mode when performing screen projection display on the large screen end comprises:
when a large screen end is subjected to screen projection display, calling a screen capture function of the large screen end to obtain a plurality of area screen captures of a display interface of the large screen end;
and carrying out image recognition on the plurality of region screenshots, and judging that the image recognition result is black screen display when the image recognition result is a pure black image.
3. The method according to claim 2, wherein the step of calling the screenshot function of the large screen end to obtain a plurality of area screenshots of the display interface of the large screen end specifically comprises:
and calling a screenshot function of the large screen end, and performing multiple screenshots on a preset area of a display interface of the large screen end according to a preset time interval so as to obtain multiple area screenshots.
4. The method according to claim 2, wherein after the step of calling the screenshot function of the large screen end to obtain a plurality of area screenshots of the display interface of the large screen end, the method further comprises:
and carrying out image recognition on the plurality of area screenshots, and if any image recognition result is a non-pure black image, judging that the image recognition result is non-black screen display.
5. The method according to claim 4, wherein the step of image recognizing the plurality of region screenshots specifically comprises:
and extracting the RGB value of each region screenshot to detect whether each pixel point of the corresponding region screenshot is black or not, and judging that the corresponding region screenshot is a pure black image when each pixel point of the corresponding region screenshot is black.
6. The method of claim 5, wherein the step of image recognizing the plurality of screenshots further comprises:
and if any pixel point of the corresponding area screenshot is non-black, judging that the corresponding area screenshot is a non-pure black image.
7. The method according to claim 1, wherein the step of changing the OpenGL image drawing mode of the large screen end from a default hardware graphics card drawing mode to a software drawing mode to re-implement the screen projection display of the large screen end specifically comprises:
and changing the OpenGL image drawing mode of the large-screen end from a default hardware graphics card drawing mode to a software drawing mode, and simultaneously reducing the frame rate of the large-screen end to realize screen projection display of the large-screen end again and send corresponding pop-up frame reminding to a user.
8. The method according to any one of claims 1 to 7, wherein after the step of performing screen recognition on the display interface of the large screen end in a preset manner when performing screen projection display on the large screen end, the method further comprises:
and if the picture identification result is non-black screen display, the current OpenGL image drawing mode of the large screen end does not need to be changed, and the current screen projection display of the large screen end is maintained.
9. A terminal, comprising: memory, a processor, a program stored on the memory and executable on the processor, and a data bus for enabling a connection communication between the processor and the memory, the program, when executed by the processor, implementing the steps of the method according to any one of claims 1-8.
10. A storage medium for computer readable storage, wherein the storage medium stores one or more programs which are executable by one or more processors to implement the steps of the method of any one of claims 1-8.
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CN116055623A (en) * | 2022-06-23 | 2023-05-02 | 荣耀终端有限公司 | Power consumption control method and electronic equipment |
CN116055623B (en) * | 2022-06-23 | 2023-11-03 | 荣耀终端有限公司 | Power consumption control method, electronic equipment and storage medium |
WO2023246290A1 (en) * | 2022-06-23 | 2023-12-28 | 荣耀终端有限公司 | Power consumption control method and electronic device |
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