I want to apply some sort of image filter to whatever is being displayed on the screen of an android device. The simplest example of the image filter could be a Sepia filter applied to the frame buffer just before it is displayed on the screen. And just to make sure, i want this effect system wide and not just in my app.
apply filters to frame buffer just before it is displayed
656 Views Asked by thunderbird At
1
There are 1 best solutions below
Related Questions in ANDROID
- Delay in loading Html Page(WebView) from assets folder in real android device
- MPAndroidChart method setWordWrapEnabled() not found
- Designing a 'new post' android activity
- Android :EditText inside ListView always update first item in the listview
- Android: Transferring Data via ContentIntent
- Wrong xml being inflated android
- AsyncTask Class
- Unable to receive extras in Android Intent
- Website zoomed out on Android default browser
- Square FloatingActionButton with Android Design Library
- Google Maps API Re-size
- Push toolbar content below statusbar
- Android FragmentPagerAdapter Circular listview
- Layout not shifting up when keyboard is open
- auDIO_OUTPUT_FLAG_FAST denied by client can't connect to localhost
Related Questions in GRAPHICS
- Removing flashiness/ shakiness from scrolling text
- Algorithm for drawing tiles on screen
- Can this kind of SVG be simplified?
- Interactive bend image
- Plot: Add legend that overlay several Frames
- I made a function that uses graphics and I wanted to call it in the main it did not work
- Creating new shape palettes in ggplot2 and other R graphics
- How to move everything in Graphics2D by x,y coordinates.
- Java Graphics Dispose Method
- How can I convert PNG to GIF keeping the transparency?
- Java repaint() not calling paintComponent
- 1080p resolution is not detected by screen.bounds and reverts to 720p
- Creating a Texture2DArray and populate it with solid values
- paintComponent method not being called by repaint
- Dealing with and printing large text files
Related Questions in SURFACEFLINGER
- dumpsys SurfaceFlinger output interpretation
- How to upscale and render remote(RGB565) frame buffer on Android native?
- apply filters to frame buffer just before it is displayed
- android rendering using CPU but not GPU?
- What is the functionality of Window in Android Graphics?
- What is "Comp Type" in surfaceflinger logs?
- Manually config via ADB delay between refresh rate change
- Who provide the data for wifi display?
- Can I use performTraversals to measure FPS on Android?
- Memory growth at surfaceflinger process on Android x86 platforms
- How Layer's Buffer is mapped to Framebuffer in Android SurfaceFlinger
- Android animation: keeping up with vsync
- Reading contents of android-layer
- How to use the information provided by "dumpsys" from kernel?
- How to access SurfaceFlinger from userspace program?
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
To make the effect system-wide, you would need to modify SurfaceFlinger to apply the filter.
In Android 5.0 "Lollipop" you can see a prototype implementation of code that modifies the output to improve the contrast for people who are color blind. See the Daltonizer code and how it's hooked into
doDisplayComposition()in SurfaceFlinger.cpp. Note this applies the effect during surface composition, and consequently disables Hardware Composer.There's no way to do this system-wide from an app. If there were, you could wreak all sorts of havoc on the system.