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lazy loading of textures

October 31, 2012 - 11:58pm #1

In VideoPlack sample we are loading textures in onCreate method with following method before updateApplicationStatus(APPSTATUS_INIT_APP);


private void loadTextures()

    {

        mTextures.add(Texture.loadTextureFromApk("VuforiaSizzleReel_1.png",

                getAssets()));

        mTextures.add(Texture.loadTextureFromApk("VuforiaSizzleReel_2.png",

                getAssets()));

        mTextures.add(Texture.loadTextureFromApk("play.png",

                getAssets()));

        mTextures.add(Texture.loadTextureFromApk("busy.png",

                getAssets()));

        mTextures.add(Texture.loadTextureFromApk("error.png",

                getAssets()));

    }

What if I want to load textures after downloading them from internet? What should I do? If I simply add texture to mTextures array then it is not loaded since we have to load textures in cpp file as well.

ayazalavi
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Posts: 76
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lazy loading of textures

May 28, 2013 - 9:04am #14

Sounds like you are trying to load some Dataset from an XML / DAT database, but perhaps those files are not present.

 

AlessandroB
Joined:
October 9, 2012
Posts: 8594
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lazy loading of textures

May 28, 2013 - 1:38am #13

how can i get that QCAR be loaded or not

 

 

 

 

when run in device its shows failed load tracker data 

Malleswari
Joined:
April 17, 2013
Posts: 11
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lazy loading of textures

May 28, 2013 - 1:18am #12

Hi, that error (Failed to initialize) typically occurs if QCAR has already been initialized and you try to init again.

Make sure your code does not perform initialization twice...

 

AlessandroB
Joined:
October 9, 2012
Posts: 8594
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agumentedreality

May 28, 2013 - 12:31am #11

hi

i get the libQCAR.so file,thank you

 

now i get the error like 

 

InitQCRTask::onPostExcute:FailedInitializeQCAR.Exiting

 

please give me the solution as early as possible

thanks

Malleswari.D

Malleswari
Joined:
April 17, 2013
Posts: 11
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augmented reality

May 27, 2013 - 1:41am #10

Hi 

i set all

 

 
VideoPlayback.java:-
 
private static final String NATIVE_LIB_SAMPLE       = "VideoPlayback";
private static final String NATIVE_LIB_QCAR         = "QCAR";
 
Android.mk:
 
 
LOCAL_MODULE    := VideoPlayback
LOCAL_SRC_FILES := Ecognosys.cpp
 

 

but still i get the same  error libQCAR.so not loaded

Malleswari
Joined:
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Posts: 11
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augmented reality

May 27, 2013 - 1:41am #9

Hi 

i set all

 

 
VideoPlayback.java:-
 
private static final String NATIVE_LIB_SAMPLE       = "VideoPlayback";
private static final String NATIVE_LIB_QCAR         = "QCAR";
 
Android.mk:
 
 
LOCAL_MODULE    := VideoPlayback
LOCAL_SRC_FILES := Ecognosys.cpp
 

 

but still i get the same  error libQCAR.so not loaded

Malleswari
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Posts: 11
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lazy loading of textures

May 27, 2013 - 1:17am #8

Hi, two things to pay attention to are"

in CloudReco.java (or VideoPlayback.java or anyway in your main activity file), you should see these lines:

private static final String NATIVE_LIB_SAMPLE = "CloudReco";
private static final String NATIVE_LIB_QCAR = "QCAR";
 
And in android.mk (under the /jni folder) you should see a line like:
 
LOCAL_MODULE := CloudReco
 
(or LOCAL_MODULE := VideoPlayback)
 
Make sure that the LOCAL_MODULE name in android.mk and the NATIVE_LIB_SAMPLE value in Java are the same.
 
 
AlessandroB
Joined:
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Posts: 8594
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augmentedreality

May 27, 2013 - 12:56am #7

Hi  

i compile the my project and get  the below statments in console of eclipse IDE

13:10:20 **** Incremental Build of configuration Default for project Ecognosys ****

"G:\\Android\\android-ndk-r8e\\ndk-build.cmd" all 
Install        : libEcognosys.so => libs/armeabi/libEcognosys.so
 
13:10:21 Build Finished (took 888ms)
 
 
In Logcat i  get the following errors:
 

        1. The library llibQCAR.so couldnot be loaded.

         2.Fatal Exception:main

            java.lang.unstatisfiedLinkErrors:onResume nativemethod not found.

                    at com.qualcomm.QCAR.QCAR.onResume(NativeMethod)

   at com.example.ecognosys.Vedioplayback.onResume(VedioPlayback.java)

at android .app.Instrumentation.callActivityonResume.

Malleswari
Joined:
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Posts: 11
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lazy loading of textures

May 22, 2013 - 8:52am #6

Hi, I would recommend to read this FAQ, as your problem can probably be one of those explained here:

https://developer.vuforia.com/forum/faq/android-how-do-i-fix-my-compile-or-runtime-errors

 

AlessandroB
Joined:
October 9, 2012
Posts: 8594
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Unstatisfied error

May 21, 2013 - 11:58pm #5

Hi thank you for replaying

 

 

I get the error  in video playback agumented reality app 

                                 java.lang.unsatisfiedLinkError:onReume native method ot found.

                                    at com.qualcomm.QCAR.QCAR.onResume(NativeMethod)

                                 at.com.example.ecognosys.VideoPlayback.onResume(NativeMethod)

                                  at android.app.Instrumentation.callActivityOnReume.

 

 

Malleswari.D

Malleswari
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lazy loading of textures

May 21, 2013 - 7:01am #4

Hi Malleswari,

what error are you referring to ?

 

AlessandroB
Joined:
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Posts: 8594
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java.lang.UnsatifiedLinkError:onResume

May 21, 2013 - 2:40am #3

how  can i slove thiss error

Malleswari
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lazy loading of textures

November 1, 2012 - 1:36am #2

I found answer in this thread

https://ar.qualcomm.at/content/load-textures-apk-runtime

ayazalavi
Joined:
February 13, 2012
Posts: 76
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