CN117724797B - Free scaling optimization method based on heterogeneous mixed rendering - Google Patents
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Abstract
The invention discloses a free scaling optimization method based on heterogeneous mixed rendering, which is characterized in that when an application window is stretched in a desktop system, the size adjustment and rendering mode of the application window in an android application compatible service are determined according to the size relation between the original window size and the latest window size, and the window increase adjustment is realized by adding the synthesis and drawing operation of the rendering content of the android application and the rendering content of the desktop window between the android application compatible service rendering and the on-screen operation, so that the black area displayed in the window increase process caused by the rendering difference between the desktop system and the android compatible environment is eliminated, the visual effect of the android application window is always consistent with the frame size of the window in the desktop system, and the visual effect of the android application window is similar to the original application of the desktop system, and the user experience is effectively improved.
Description
Technical Field
The invention belongs to the technical field of computer software development, and particularly relates to a free scaling optimization method based on heterogeneous hybrid rendering.
Background
Existing applications are typically developed for android systems, and applications are typically set to be displayed in full screen mode for meeting the use requirements of most application scenarios, with interfaces typically being of fixed size and not supporting resizing. However, when using such applications on a desktop platform, users often need to resize the application display interface. In the prior art, android applications are usually run on a desktop platform by adopting an android compatible environment, and the existing android compatible environment implementation scheme is as an xDroid, wherein the xDroid comprises an xDroidUI and xDroidServer, xDroidUI as android application display units, and the xdroidServer is an android application compatible service. In this case, the android application is usually displayed in a desktop application window, and when the user adjusts the size of the desktop application window, the android application is also scaled at the same time, but because the rendering speeds of the desktop platform and the android compatible environment are different, the change of the size of the desktop application window is not synchronous with the change of the size of the actual window of the android application, especially when the desktop application window is enlarged, the phenomenon is more obvious, and at the moment, the increasing speed of the desktop application window is greater than the increasing speed of the actual window of the android application, the area with different sizes between the rectangle corresponding to the desktop application window and the rectangle corresponding to the actual window of the android application is displayed as black or other colors, and the user experience is reduced.
Disclosure of Invention
In view of the above, the invention provides a free scaling optimization method based on heterogeneous hybrid rendering, which realizes stretching operation of android applications in an android compatible environment similar to native applications of a desktop system.
The invention provides a free scaling optimization method based on heterogeneous mixed rendering, which comprises the following steps:
step 1, starting a target android application in an android compatible environment, generating a target desktop window corresponding to the target android application by an android application display unit, and recording that the window ID and the window size of the target desktop window are respectively the target desktop window ID and the actual size of the desktop window;
step 2, when the size of the desktop window is changed, the desktop system sends a window adjustment message to the android application display unit and the window manager, wherein the window adjustment message comprises the window ID of the desktop window and the latest window size of the desktop window;
step 3, the window manager enters a waiting state after receiving the window adjustment message, and after receiving the window adjustment message, the android application display unit determines a target desktop window according to the window ID, and if the latest window size is not larger than the actual size of the desktop window of the target desktop window, the step 4 is executed; otherwise, executing the step 6;
step 4, the android application display unit sends a title bar width modification message containing a window ID and a title bar width to a window manager, and the title bar width is set according to the latest window size; the android application display unit sends desktop window change information containing a window ID and the latest window size to an android application compatible service;
step 5, after receiving the title bar width modification message, the window manager sets a title bar corresponding to the target desktop window; after receiving the desktop window change message, the android application compatible service finishes rendering and screen-surfing of the corresponding android window according to the window ID, and ends the process;
step 6, the android application display unit sends desktop window increasing information containing the window ID and the latest window size to an android application compatible service;
step 7, the android application compatible service executes rendering refreshing operation of the android window, takes a window ID in the desktop window increasing message as a first window ID, and obtains the current window size of the android application as the actual size of the android window;
step 8, after the android application compatible service finishes rendering of one frame of data according to the first window ID and the actual size of the android window, before performing the screen operation on the rendering data, if the rendering data belongs to a window corresponding to the first window ID and is a SurfaceView window, the android application compatible service enters a monitoring state, and if the rendering data belongs to a window corresponding to the first window ID and is a non-SurfaceView window, the address of the rendering data in the android application compatible service is mapped to an android application display unit, wherein the mapping address is a first mapping address; sending a rendered message to the android application display unit, wherein the rendered message comprises a first window ID, the actual size of the android window and a first mapping address;
step 9, after the android application display unit receives the rendering completion message, a title bar width modification message containing a first window ID and the actual size of the android window is sent to a window manager, if the designated window in the rendering completion message is a SurfaceView window, rendering data of a difference region between the actual size of a desktop window and a rectangle corresponding to the actual size of the android window is obtained, the rendering data is drawn into a target desktop window, and then a screen-up completion message is sent to an android application compatible service; if the designated window in the rendered message is a non-surface view window, acquiring a buffer zone of a rendering rectangle corresponding to the target desktop window, copying rendering data in a first mapping address to the buffer zone, and drawing the data in the buffer zone into the target desktop window;
step 10, the window manager receives the title bar width modification message, and sets the width of the title bar according to the actual size of the android window; after the android application compatible service receives the screen-up message, screen-up operation is carried out on rendering data corresponding to the android window;
step 11, if the actual size of the android window is different from the latest window size, executing step 8 after increasing the actual size of the android window by the android application compatible service; otherwise, finishing the adjustment of the size of the desktop window and ending the process.
Further, in the step 7, the manner in which the android application compatible service performs the rendering refresh operation of the android window is as follows: and executing the rendering refreshing operation of the android window according to the refreshing frequency.
Further, in the step 8, the mapping the address of the rendering data in the android application compatible service to the android application display unit is as follows: through a memory mapping mechanism.
Further, in the step 8, the method for sending the rendered message to the android application display unit is as follows: through the core semaphore.
Further, in the step 9, the rendering data of the difference area between the rectangle corresponding to the actual size of the desktop window and the actual size of the android window is obtained, and the implementation manner in the Linux system is as follows:
s91.1, opening the DRM equipment;
s91.2, acquiring display resources by using a drmModeGetRES resources function;
s91.3, acquiring information of a current controller by using drmModeGetCrtc;
s91.4, creating a frame buffer area for storing screen area data to be acquired, and distributing a memory through a GEM interface;
s91.5, mapping the frame buffer area to a user space by using a mmap command;
s91.6, copying the pixel data of the appointed area from the mapped frame buffer memory.
Further, the creating manner of the frame buffer in S91.4 is: created using drmModeAddFB or drmModeAddFB 2.
Further, in the step 9, the rendering data of the difference area between the rectangle corresponding to the actual size of the desktop window and the actual size of the android window is obtained, and the implementation manner in the Windows system is as follows:
s92.1, calling CreateDevice to create D3D equipment;
s92.2, calling CreateOffscreen PlanSurface to create a Surface related to the screen;
s92.3, calling GetFrontBufferData to acquire screen rendering data;
s92.4, calling the lockRect/UnlockRect to lock a Surface corresponding buffer, accessing the memory and reading pixel data of a designated area.
Advantageous effects
When the application window is stretched in the desktop system, the size adjustment and the rendering mode of the android application window in the android application compatible service are determined according to the size relation between the original window size and the latest window size, and the window increasing adjustment is performed by adding the composition and drawing operation of the rendering content of the android application and the rendering content of the desktop window between the android application compatible service rendering and the on-screen operation, so that the black area displayed in the window in the process of increasing the window caused by the rendering difference between the desktop system and the android compatible environment is eliminated, the visual effect of the android application window is always consistent with the frame size of the window in the desktop system, and the window is similar to the original application of the desktop system, and further the user experience is effectively improved.
Detailed Description
The present invention will be described in detail with reference to the following examples.
The invention provides a free scaling optimization method based on heterogeneous mixed rendering, which has the following core ideas: when an application window is stretched in a desktop system, a size adjustment and rendering mode of the android application window in an android application compatible service is determined according to the size relation between the original window size and the latest window size, and the adjustment of window enlargement is performed by adding the synthesis and drawing operation of the rendering content of the android application and the rendering content of the desktop window between the rendering of the android application compatible service and the operation of on-screen, so that a black area displayed in the window enlargement process caused by the rendering difference between the desktop system and the android compatible environment is eliminated.
The invention provides a free scaling optimization method based on heterogeneous mixed rendering, which specifically comprises the following steps:
step 1, starting an android compatible environment, starting a target android application in the android compatible environment, generating a target desktop window corresponding to the target android application by an android application display unit, recording the window size of the target desktop window as the actual size of the desktop window, and simultaneously recording the window ID of the target desktop window as the target desktop window ID.
And 2, when the size of the desktop window is changed, the desktop system sends a window adjustment message to the android application display unit and the window manager, wherein the window adjustment message comprises the window ID of the desktop window and the latest window size of the desktop window.
Step 3, after receiving the window adjustment message, the window manager enters a waiting state; meanwhile, after receiving the window adjustment message, the android application display unit determines a target desktop window corresponding to the window adjustment message according to the window ID in the message, and if the latest window size is not larger than the actual size of the desktop window of the recorded target desktop window, the step 4 is executed; otherwise, step 6 is performed.
Step 4, the android application display unit constructs a title bar width modification message and sends the message to the window manager, wherein the title bar width modification message comprises a window ID and a title bar width, and the title bar width is set according to the latest window size; meanwhile, the android application display unit constructs a desktop window change message and sends the message to the android application compatible service, wherein the desktop window change message comprises a window ID and the latest window size.
Step 5, after receiving the title bar width modification message, the window manager sets a title bar corresponding to the target desktop window according to the message content; after receiving the desktop window change message, the android application compatible service finishes rendering and screen loading of the corresponding android application window according to the window ID and the latest window size; and finishing the adjustment of the size of the desktop window, and ending the process.
And 6, the android application display unit constructs a desktop window increasing message and sends the desktop window increasing message to the android application compatible service, wherein the desktop window increasing message comprises a window ID and the latest window size.
And 7, executing rendering refreshing operation of the android application window according to the refreshing frequency by the android application compatible service, analyzing the received desktop window increasing message to obtain a window ID and the latest window size, taking the window ID as a first window ID, and obtaining the current window size of the android application as the actual size of the android window.
Step 8, according to the first window ID and the actual size of the android window, after the android application compatible service finishes rendering a frame of data and before performing a screen operation on the rendered data, if the rendered data belongs to a window corresponding to the first window ID and the designated window is a SurfaceView window, the android application compatible service enters a monitoring state to wait for the android application display unit to send a screen message, if the rendered data belongs to a window corresponding to the first window ID and the designated window is a non-SurfaceView window, mapping the address of the rendered data in the android application compatible service to the android application display unit through a memory mapping mechanism, wherein the mapping address is a first mapping address; and then sending a rendered message to the android application display unit, wherein the rendered message comprises a first window ID, the actual size of the android window and a first mapping address, and the first mapping address can be null.
In order to improve the data transmission speed, the android application compatible service sends the rendering completion message to the android application display unit through the kernel semaphore.
Step 9, after the android application display unit receives the rendering completion message, a title bar width modification message containing a first window ID and the actual size of the android window is sent to a window manager, meanwhile, if the designated window in the rendering completion message is a SurfaceView window, a difference area between the actual size of a desktop window and a rectangle corresponding to the actual size of the android window is obtained, rendering contents in the difference area are drawn into a target desktop window, and then a screen-on message is sent to an android application compatible service; if the designated window in the rendered message is a non-surface view window, a buffer area of a rendering rectangle corresponding to the target desktop window is obtained, rendering data in the first mapping address is copied to the buffer area, and finally the data in the buffer area is drawn to the target desktop window.
The process of copying the rendering data in the first mapping address to the buffer area is realized according to the size and the position relation between the current android window and the desktop window.
In addition, a difference area between the actual size of the desktop window and the rectangle corresponding to the actual size of the android window is obtained, and rendered contents in the difference area are drawn into the target desktop window, and the Linux is realized by using a DRM (Direct Rendering Manager) interface to obtain contents of a given area of the current display, and the method basically operates in a video memory, so that the processing efficiency is highest, and the method mainly comprises the following steps of:
s91.1, opening the DRM equipment;
s91.2, acquiring display resources by using a drmModeGetRES resources function;
s91.3, acquiring information of a current controller (CRTC) by using drmModeGetCrtc;
s91.4, creating a frame buffer area by using drmModeAddFB or drmModeAddFB2, wherein the frame buffer area is used for storing the content of a screen area to be acquired and distributing a memory through a GEM (Graphics Execution Manager) interface;
s91.5, mapping the frame buffer area to a user space by using a mmap command so as to realize the access and the reading of pixel data of a screen area by a user;
s91.6, copying the pixel data of the appointed area from the mapped frame buffer memory.
The implementation under Windows is to acquire the content of the given area of the current display by using the DirectX interface, which comprises the following steps:
s92.1, calling CreateDevice to create D3D equipment;
s92.2, calling CreateOffscreen PlanSurface to create a Surface related to the screen;
s92.3, calling GetFrontBufferData to acquire screen rendering content, namely copying the screen into a Surface created in S92.2;
s92.4, calling the lockRect/UnlockRect to lock a Surface corresponding buffer, accessing the memory and reading pixel data of a designated area.
Step 10, the window manager receives the title bar width modification message, and sets the width of the title bar according to the actual size of the android window; and after the android application compatible service receives the screen-on message, executing screen-on operation on rendering data corresponding to the android window.
Step 11, the android application compatible service judges the relation between the actual size of the android window and the latest window size, and if the actual size of the android window is different from the latest window size, the step 8 is executed after the actual size of the android window is increased; otherwise, finishing the adjustment of the size of the desktop window and ending the process.
Examples
The free scaling optimization method based on heterogeneous mixed rendering provided by the invention is adopted in the embodiment, and the free scaling of the android application window is realized in an android compatible environment xProid, and the specific steps are as follows:
s1, when receiving a window adjustment message sent by a desktop system end, the xDaridUI marks the new desktop window size as HostWindow NewSize; if the HostWindow NewSize is not increased in size relative to the size of the previous desktop window, i.e., neither the width nor the height is increased, then performing standard operations; otherwise, S2 is executed.
Because the Linux or Windows window is increased at a certain speed which is faster than the android application window in the android compatible environment, the increase of any one of the width or the height of the desktop window can cause black frames in the desktop window.
S2, the xAridUI informs a window ID of which the size is currently being changed of SurfaceFlinger of the xAridServer through the RPC, and the window is recorded as AndroidWindowBeingResize.
S3, modifying a management mechanism of the width of a title bar of a window manager in a desktop system, specifically modifying an API interface of X11 and Wayland or Hook Windows of Linux, and realizing: when the window manager receives the window adjustment message of the bottom window, the width of the title bar, that is, the width of the HostWindowNewSize, is not directly modified, but is modified after waiting for receiving the title bar width modification message sent by the xDalid UI.
S4, modifying an android window rendering refreshing interface of SurfaceFlinger in an android frame, and informing an xAridUI when one window rendering refreshing is realized and the size of the window is changed, specifically:
after the surface eFlinger finishes rendering one frame of data, before preparing to execute the SwapBuffer screen operation, judging that if the frame of data belongs to a window AndroidWindowBeingResize and the size of the frame of data FrameBuffer is changed, namely the length or the width is changed, informing an xDaridUI through a kernel signal quantity, transmitting the frame of data to the xDaridUI through a kernel shared memory, and recording the size of the current frame of data corresponding to the android window as AndroidWindowRealSize;
if the current android window is a SurfaceView window, the application is directly rendered through a bottom graphical interface, then the SwapBuffer operation is not executed temporarily and enters a waiting state, and the SwapBuffer operation is executed after waiting for a message sent by the xDalid UI;
if the current window is a non-surface view window, the frame data buffer area ready to be on screen through the SwapBuffer is mapped outside the container by adopting a memory mapping mechanism, the mapped address is marked as a mapreduce buffer, the SwapBuffer is not executed any more, and the rendering data is finished by the desktop end.
S5, after receiving the notification, the xDaridUI notifies a window manager to set the width of the title bar of the current window according to the width of the AndroidWindowRealSize;
if the current window is a SurfaceView window, calculating a difference rectangular area between HostWindowNewSize and AndroidWindowRealSize, acquiring rendering data of the area, and drawing the rendering data on a Linux window; notifying the suspended SwapBuffer on-screen operation before the SurfaceFlinger is executed through the kernel signal quantity; specifically, the copying and synthesizing of one frame of data are actually completed, namely, the desktop system completes the screen operation on the difference part of the frame of data, and the rendering data corresponding to the android window is completed by the xDaidServer;
if the current window is a non-surface view window, acquiring a buffer zone of a rendering rectangle in the current desktop system according to the size and the position of HostWindowNewSize, copying and synthesizing the content of a mapreduce buffer into the buffer zone, and finally drawing the data in the buffer zone on the desktop window; the method for obtaining the rendering rectangular buffer zone in the current desktop system can be obtained by utilizing a DRM interface of Linux or a DirectX interface of Windows;
and drawing window frames according to the android windowreaalsize.
S6, the operation is circulated in the SufaceFlinger until AndroidWindowRealSize is equal to HostWindowNewSize.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The free scaling optimization method based on heterogeneous mixed rendering is characterized by comprising the following steps of:
step 1, starting a target android application in an android compatible environment, generating a target desktop window corresponding to the target android application by an android application display unit, and recording that the window ID and the window size of the target desktop window are respectively the target desktop window ID and the actual size of the desktop window;
step 2, when the size of the desktop window is changed, the desktop system sends a window adjustment message to the android application display unit and the window manager, wherein the window adjustment message comprises the window ID of the desktop window and the latest window size of the desktop window;
step 3, the window manager enters a waiting state after receiving the window adjustment message, and after receiving the window adjustment message, the android application display unit determines a target desktop window according to the window ID, and if the latest window size is not larger than the actual size of the desktop window of the target desktop window, the step 4 is executed; otherwise, executing the step 6;
step 4, the android application display unit sends a title bar width modification message containing a window ID and a title bar width to a window manager, and the title bar width is set according to the latest window size; the android application display unit sends desktop window change information containing a window ID and the latest window size to an android application compatible service;
step 5, after receiving the title bar width modification message, the window manager sets a title bar corresponding to the target desktop window; after receiving the desktop window change message, the android application compatible service finishes rendering and screen-surfing of the corresponding android window according to the window ID, and ends the process;
step 6, the android application display unit sends desktop window increasing information containing the window ID and the latest window size to an android application compatible service;
step 7, the android application compatible service executes rendering refreshing operation of the android window, takes a window ID in the desktop window increasing message as a first window ID, and obtains the current window size of the android application as the actual size of the android window;
step 8, after the android application compatible service finishes rendering of one frame of data according to the first window ID and the actual size of the android window, before performing the screen operation on the rendering data, if the rendering data belongs to a window corresponding to the first window ID and is a SurfaceView window, the android application compatible service enters a monitoring state, and if the rendering data belongs to a window corresponding to the first window ID and is a non-SurfaceView window, the address of the rendering data in the android application compatible service is mapped to an android application display unit, wherein the mapping address is a first mapping address; sending a rendered message to the android application display unit, wherein the rendered message comprises a first window ID, the actual size of the android window and a first mapping address;
step 9, after the android application display unit receives the rendering completion message, a title bar width modification message containing a first window ID and the actual size of the android window is sent to a window manager, if the designated window in the rendering completion message is a SurfaceView window, rendering data of a difference region between the actual size of a desktop window and a rectangle corresponding to the actual size of the android window is obtained, the rendering data is drawn into a target desktop window, and then a screen-up completion message is sent to an android application compatible service; if the designated window in the rendered message is a non-surface view window, acquiring a buffer zone of a rendering rectangle corresponding to the target desktop window, copying rendering data in a first mapping address to the buffer zone, and drawing the data in the buffer zone into the target desktop window;
step 10, the window manager receives the title bar width modification message, and sets the width of the title bar according to the actual size of the android window; after the android application compatible service receives the screen-up message, screen-up operation is carried out on rendering data corresponding to the android window;
step 11, if the actual size of the android window is different from the latest window size, executing step 8 after increasing the actual size of the android window by the android application compatible service; otherwise, finishing the adjustment of the size of the desktop window and ending the process.
2. The free scaling optimization method according to claim 1, wherein the manner in which the android application compatible service performs the rendering refresh operation of the android window in step 7 is: and executing the rendering refreshing operation of the android window according to the refreshing frequency.
3. The method according to claim 1, wherein the mapping the address of the rendering data in the android application compatible service to the android application display unit in the step 8 is: through a memory mapping mechanism.
4. The free scaling optimization method according to claim 1, wherein the method of sending the rendered message to the android application display unit in step 8 is as follows: through the core semaphore.
5. The method of claim 1, wherein in the step 9, the method is implemented in a Linux system by obtaining rendering data of a difference region between a rectangle corresponding to an actual size of a desktop window and an actual size of an android window, where the rendering data comprises:
s91.1, opening the DRM equipment;
s91.2, acquiring display resources by using a drmModeGetRES resources function;
s91.3, acquiring information of a current controller by using drmModeGetCrtc;
s91.4, creating a frame buffer area for storing screen area data to be acquired, and distributing a memory through a GEM interface;
s91.5, mapping the frame buffer area to a user space by using a mmap command;
s91.6, copying the pixel data of the appointed area from the mapped frame buffer memory.
6. The method of optimizing free scaling according to claim 5, wherein the creating manner of the frame buffer in S91.4 is: created using drmModeAddFB or drmModeAddFB 2.
7. The method of claim 1, wherein in the step 9, the method is implemented in a Windows system by obtaining rendering data of a difference region between a rectangle corresponding to an actual size of a desktop window and an actual size of an android window, where the rendering data comprises:
s92.1, calling CreateDevice to create D3D equipment;
s92.2, calling CreateOffscreen PlanSurface to create a Surface related to the screen;
s92.3, calling GetFrontBufferData to acquire screen rendering data;
s92.4, calling the lockRect/UnlockRect to lock a Surface corresponding buffer, accessing the memory and reading pixel data of a designated area.
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| CN116627579A (en) * | 2023-07-24 | 2023-08-22 | 麒麟软件有限公司 | Method and device for scaling android application window on Linux |
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| CN114253652A (en) * | 2021-12-31 | 2022-03-29 | 南京机敏软件科技有限公司 | Method and system for realizing cloud application window list of android mobile terminal by simulating local App |
| CN115658216A (en) * | 2022-12-26 | 2023-01-31 | 飞腾信息技术有限公司 | Application program window processing method and device and computer readable storage medium |
| CN116627579A (en) * | 2023-07-24 | 2023-08-22 | 麒麟软件有限公司 | Method and device for scaling android application window on Linux |
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