Legacy ImageMagick Discussions Archive

Code: Select all

#include <jni.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <sys/types.h>
#include <wand/MagickWand.h>

#include "MagickTest.h"

/*
 * Class:     MagickTest
 * Method:    convert
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_MagickTest_convert
  (JNIEnv *env, jclass magickClass) {
  
  ExceptionInfo *exception;
  ImageInfo *image_info;
  jobject obj;
  MagickBooleanType regard_warnings, status;
  int argc = 25;
  char *argv[] = { "convert",
        "-background",
        "none",
        "-gravity",
        "center",
        "-fill",
        "black", // color
        "-font",
        "Arial",     // font
        "-size",
        "170x170", // text dim
        "-rotate",
        "-5",     // rotation
        "-stroke",
         "none",        // stroke color
        "caption:Hello", // caption:
        "+size",
        "bg_image.jpg", // 
        "+swap",
        "-gravity",
        "northwest",
        "-geometry",
        "+0+0", // text off x/y  
        "-composite",
        "out.jpg" };  
  
  MagickCoreGenesis(*argv,MagickTrue);
  exception=AcquireExceptionInfo();
  regard_warnings=MagickFalse;
  image_info=CloneImageInfo((ImageInfo *) NULL);
  
  status=ConvertImageCommand(image_info,argc,argv,(char **) NULL,exception);
  if ((status == MagickFalse) || (exception->severity != UndefinedException))
    {
      if ((exception->severity < ErrorException) &&
          (regard_warnings == MagickFalse))
        status=MagickTrue;
      CatchException(exception);
    }
  image_info=DestroyImageInfo(image_info);
  exception=DestroyExceptionInfo(exception);
  MagickCoreTerminus();
  }

Code: Select all

public class MagickTest implements Runnable {
    private final static int NUMBER_OF_THREADS = 2;
    // how many times to invoke convert command in each thread
    private final static int ITTERATIONS_PER_THREAD = 100;
    //Native method declaration
    public native void convert();
    // load .dll
    static {
        System.loadLibrary("magick_native");
    } 
    public void run() {        
        /* Start Thread Code */
        Runtime rt = Runtime.getRuntime();            
        for (int i=0;i<ITTERATIONS_PER_THREAD;i++) {                
            long freeMem = rt.freeMemory();
            long maxMem = rt.maxMemory();
            // Call ImageMagick convert via JNI wrapper (see magick_native.c)
            convert();
            System.out.println(Thread.currentThread().getName() + " i="+ i +": Memory: free/max (" +freeMem + "/" + maxMem + ")");
        }        
        /* End Thread Code */
    }

    public static void main(String[] args) {
        for (int i=0;i<NUMBER_OF_THREADS;i++) {
            Thread t = new Thread(new MagickTest());
            t.setName("Thread " + (i + 1));
            t.start();
        }
    }    
}