android - RenderScript acting weird and returning nothing -

-

i'm using renderscript , when write kernel, @ first acting ok. when change kernel , rebuild project returns nothing. knows why? return blank photo , nothing else.

i have fixed it. problem me targetsdkversion 24 . found out in android 7, there has been lot of changes (new features) renderscript, have changed targetsdkversion 22 , fixed issue. tried simple filter, , after using filter showed me nothing in imageview. when changed targetsdkversion 22 fixed problem , see filtered image in imageview. here code i've used:

uchar4 __attribute__((kernel)) filtered(uchar4 in, uint32_t x, uint32_t y) {  uchar4 out = in;  out.r = 255 - in.r;  out.g = 255 - in.g;  out.b = 255 - in.b;  return out; }

if interested can try targetsdkversion 24 , 22. , here code java part:

public void imagefilter(bitmap bmp) {      doallocation();      operationbitmap = bitmap.createbitmap(bmp.getwidth(),             bmp.getheight(), bmp.getconfig());      int height = operationbitmap.getheight();     int width = operationbitmap.getwidth();      toast.maketext(mainactivity.this, width + " x " + height, toast.length_short).show();      scriptc_cnn cnnscript = new scriptc_cnn(rs);     cnnscript.foreach_filtered(allocin, allocout);      allocout.copyto(operationbitmap);     selectedimagepreview.setimagebitmap(operationbitmap);     rs.destroy(); }  public void doallocation() {          allocin = allocation.createfrombitmap(rs, originalbitmap,                 allocation.mipmapcontrol.mipmap_none,                 allocation.usage_script);          allocout = allocation.createtyped(rs,                 allocin.gettype()); }

and can see renewed document of google in developer.android website. here link: https://developer.android.com/guide/topics/renderscript/compute.html#writing-an-rs-kernel

you can see mapping kernel can use rs_kernel instead of attribute((kernel)). , google mentioned rs_kernel macro defined automatically renderscript convenience:

#define rs_kernel __attribute__((kernel))

update here gradle:

android { compilesdkversion 24 buildtoolsversion "24.0.1"  defaultconfig {     applicationid "shahryar.com.cellularneuralnetwork"     minsdkversion 16     targetsdkversion 22     versioncode 1     versionname "1.0"     renderscriptsupportmodeenabled true;     renderscripttargetapi 16; } buildtypes {     release {         minifyenabled false         proguardfiles getdefaultproguardfile('proguard-android.txt'), 'proguard-rules.pro'     } } }  dependencies { compile filetree(dir: 'libs', include: ['*.jar']) testcompile 'junit:junit:4.12' compile 'com.android.support:appcompat-v7:24.2.0' }

and have used renderscripttargetapi 16 according line in google's document: valid values setting integer value 11 released api level. if minimum sdk version specified in application manifest set different value, value ignored , target value in build file used set minimum sdk version.

note: gradle version working me.


Comments

Post a Comment

Popular posts from this blog

mysql - Dreamhost PyCharm Django Python 3 Launching a Site -

-
i'm new python/django , created simple django website using pycharm. site works fine running on computer, i'm lost when comes taking site onto host (dreamhost). i'm able upload files correct directories fine, , believe made correct changes database on mysql. i'm not sure go there though. right now, page shows files rather site. direction appreciated. much! you should not run django application using python manage.py runserver on production. how run application on django depends on server (apache, nginx) want use for apache - https://docs.djangoproject.com/en/1.10/howto/deployment/wsgi/modwsgi/ for nginx - https://www.digitalocean.com/community/tutorials/how-to-serve-django-applications-with-uwsgi-and-nginx-on-ubuntu-14-04 the mysql database should, of course, exist , have correct credentials. or, if choose use sqlite, file should accessible, readable , writable www-user (may different depending on linux distributive)
Read more

java - Sending SMS with SMSLib and Web Services -

-
i have made rest web service send smss using hsdpa usb modem. using smslib in java send smss. every time web service invoked, create gateway start service, send message, stop service , remove gateway. takes 20 seconds each message. found starting service takes lot of time. part of code use send smss service.getinstance().addgateway(gateway); service.getinstance().startservice(); outboundmessage msg = new outboundmessage(phonenumber, message); if (service.getinstance().sendmessage(msg)) { result = "message sent successfully!!"; } else { result = "could not send message."; } service.getinstance().stopservice(); service.getinstance().removegateway(gateway);//remove gateway is there way can start service once if not started , use send message when ever web service invoked? why dont group messages , send in 1 go? service.getinstance().sendmessages(messa...
Read more

java - How to resolve The method toString() in the type Object is not applicable for the arguments (InputStream) -

-
i'm trying read json file local machine. @path("/") public class jsonparsing { file f = new file("file.json"); if (f.exists()){ inputstream = new fileinputstream("file.json"); string jsontxt = ioutils.tostring(is); system.out.println(jsontxt); jsonobject json = new jsonobject(jsontxt); string = json.getstring("1000"); system.out.println(a); } } but i'm getting error in tostring() method. possible read .txt file containing json object local machine? if possible, how done? firstly: whenever ask question- add imports well. secondly: yes possible read .txt file containing json object. steps: 1. add maven dependency in pom.xml - <dependency> <groupid>com.googlecode.json-simple</groupid> <artifactid>json-simple</artifactid> <version>1.1.1</version> </dependency> or add jar of dependency. 2.import...
Read more