sdljava-users

[sdljava-users] UnsatisfiedLinkError Exception Problem

[Chris D. <Des...@nt...>]

Hi, I'm having a bit of a problem with:
IntBuffer pixelData = surface.getPixelData().asIntBuffer();

The code is throwing me the following exception.

Exception in thread "main" java.lang.UnsatisfiedLinkError: 
SWIG_getPixelDirectByteBuffer
    at 
sdljava.x.swig.SWIG_SDLVideoJNI.SWIG_getPixelDirectByteBuffer(Native Method)
    at 
sdljava.x.swig.SWIG_SDLVideo.SWIG_getPixelDirectByteBuffer(SWIG_SDLVideo.java:266)
    at sdljava.video.SDLSurface.getPixelData(SDLSurface.java:950)
    at 
loach.screen.SurfaceTransformer.flipHorizontal(SurfaceTransformer.java:27)
    at loach.Loach.<init>(Loach.java:102)
    at loach.Loach.main(Loach.java:177)
Picked up _JAVA_OPTIONS: -Dsun.java2d.d3d=true

Please help, I'm not sure what is wrong. This code is used in some 
horizontal image flip transformation code I wrote.

    public static void flipHorizontal(SDLSurface surface) throws 
SDLException {
        surface.lockSurface();
       
        int
            width  = surface.getWidth(),
            height = surface.getHeight(),
            pixels = width * height
        ;
       
        IntBuffer pixelData = surface.getPixelData().asIntBuffer();
       
        int[]     data   = pixelData.array();
        int[][]   pData  = new int[pixels][4];
       
        for (int i = 0; i < pixels; i++) {
            for (int j = 0; j < 4; j++) {
                pData[i][j] = data[i * j];
            }
        }
       
        int[][][] rData = new int[height][width][4];
       
        for (int row = 0; row < height; row++) {
            for (int col = 0; col < width; col++) {
                rData[row][col] = pData[row * col];
            }
        }
       
        int[] temp = new int[width];
        for (int row = 0; row < height; row++) {
            for (int left = 0, right = rData[row].length - 1; left < 
right; left++, right--) {
                /* exchange the first and last */
                temp = rData[row][left];
                rData[row][left] = rData[row][right];
                rData[row][right] = temp;
            }
        }
       
        /* deconstruct this shit and give me a fucking normal int array */
        for (int row = 0; row < height; row++) {
            for (int col = 0; col < width; col++) {
                for (int i = 0; i < 4; i++) {
                    data[row * col * i] = rData[row][col][i];
                }
            }
        }
       
        pixelData.clear();
        pixelData.put(data);
       
        surface.unlockSurface();
    }

Thanks in advance,
Chris

-- 
                                                |>
 Dessimat0r (Chris Dennett)              /`\    |
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 move it forwards with our own hands."     |;|_|;|_|;|
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Re: [sdljava-users] UnsatisfiedLinkError Exception Problem

[Ivan Z. G. <iva...@ya...>]

This is strange.  Is the function present in the sdljava.dll?  send me 
your sdljava.dll.  Are you compiling from sources?

-Ivan/

Chris Dennett wrote:

> Hi, I'm having a bit of a problem with:
> IntBuffer pixelData = surface.getPixelData().asIntBuffer();
>
> The code is throwing me the following exception.
>
> Exception in thread "main" java.lang.UnsatisfiedLinkError: 
> SWIG_getPixelDirectByteBuffer
>    at 
> sdljava.x.swig.SWIG_SDLVideoJNI.SWIG_getPixelDirectByteBuffer(Native 
> Method)
>    at 
> sdljava.x.swig.SWIG_SDLVideo.SWIG_getPixelDirectByteBuffer(SWIG_SDLVideo.java:266) 
>
>    at sdljava.video.SDLSurface.getPixelData(SDLSurface.java:950)
>    at 
> loach.screen.SurfaceTransformer.flipHorizontal(SurfaceTransformer.java:27) 
>
>    at loach.Loach.<init>(Loach.java:102)
>    at loach.Loach.main(Loach.java:177)
> Picked up _JAVA_OPTIONS: -Dsun.java2d.d3d=true
>
> Please help, I'm not sure what is wrong. This code is used in some 
> horizontal image flip transformation code I wrote.
>
>    public static void flipHorizontal(SDLSurface surface) throws 
> SDLException {
>        surface.lockSurface();
>              int
>            width  = surface.getWidth(),
>            height = surface.getHeight(),
>            pixels = width * height
>        ;
>              IntBuffer pixelData = surface.getPixelData().asIntBuffer();
>              int[]     data   = pixelData.array();
>        int[][]   pData  = new int[pixels][4];
>              for (int i = 0; i < pixels; i++) {
>            for (int j = 0; j < 4; j++) {
>                pData[i][j] = data[i * j];
>            }
>        }
>              int[][][] rData = new int[height][width][4];
>              for (int row = 0; row < height; row++) {
>            for (int col = 0; col < width; col++) {
>                rData[row][col] = pData[row * col];
>            }
>        }
>              int[] temp = new int[width];
>        for (int row = 0; row < height; row++) {
>            for (int left = 0, right = rData[row].length - 1; left < 
> right; left++, right--) {
>                /* exchange the first and last */
>                temp = rData[row][left];
>                rData[row][left] = rData[row][right];
>                rData[row][right] = temp;
>            }
>        }
>              /* deconstruct this shit and give me a fucking normal int 
> array */
>        for (int row = 0; row < height; row++) {
>            for (int col = 0; col < width; col++) {
>                for (int i = 0; i < 4; i++) {
>                    data[row * col * i] = rData[row][col][i];
>                }
>            }
>        }
>              pixelData.clear();
>        pixelData.put(data);
>              surface.unlockSurface();
>    }
>
> Thanks in advance,
> Chris
>

Re: [sdljava-users] UnsatisfiedLinkError Exception Problem

[Chris D. <Des...@nt...>]

Sorry, I had outdated versions of the SDLJava dlls, that bit works now. 
However, I've got problems with the array conversion of the IntBuffer in 
that code (ByteBuffer -> IntBuffer -> int array). For some reason, the 
operation doesn't seem to be supported. Is there any other way I can 
access it? Do you have any examples for doing so?

Thanks in advance,
Chris


Ivan Z. Ganza wrote:

> This is strange.  Is the function present in the sdljava.dll?  send me 
> your sdljava.dll.  Are you compiling from sources?
>
> -Ivan/
>
>
> -------------------------------------------------------
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> https://lists.sourceforge.net/lists/listinfo/sdljava-users
>


-- 
                                                |>
 Dessimat0r (Chris Dennett)              /`\    |
 "We cannot turn back time, but we can      _  _|_  _
 move it forwards with our own hands."     |;|_|;|_|;|
                                           \\.    .  /
 [www:    http://codeknight.net   ]         \\:  .  /
 [e-mail: des...@nt... ]          ||: U |        /`\
 [icq:    21477909                ]          ||:.  |
 [msn:    des...@nt... ]     \,/  ||: U.|
                                             ||:   |    \,/
                                             ||: , |
     ___.--'~---''--~.__            __.------'''~`-'-,
-~--'                   ~--.__..--~'                  `~----.__

Re: [sdljava-users] UnsatisfiedLinkError Exception Problem

[Ivan Z. G. <iva...@ya...>]

Chris,

Sometimes the optional operations are not implemented.  If you want to 
see examples of how the direct buffer stuff is being used have a look in 
the OpenGL code.  If you want to get it into an int[] you should be able 
to just create your own array and copy the elements into it.  Would have 
been nice had they implemented it though. 

-Ivan/

Chris Dennett wrote:

> Sorry, I had outdated versions of the SDLJava dlls, that bit works 
> now. However, I've got problems with the array conversion of the 
> IntBuffer in that code (ByteBuffer -> IntBuffer -> int array). For 
> some reason, the operation doesn't seem to be supported. Is there any 
> other way I can access it? Do you have any examples for doing so?
>
> Thanks in advance,
> Chris
>
>
> Ivan Z. Ganza wrote:
>
>> This is strange.  Is the function present in the sdljava.dll?  send 
>> me your sdljava.dll.  Are you compiling from sources?
>>
>> -Ivan/
>>
>>
>> -------------------------------------------------------
>> This SF.Net email is sponsored by: NEC IT Guy Games.  How far can you 
>> shotput
>> a projector? How fast can you ride your desk chair down the office 
>> luge track?
>> If you want to score the big prize, get to know the little guy.  Play 
>> to win an NEC 61" plasma display: http://www.necitguy.com/?r=20
>> _______________________________________________
>> sdljava-users mailing list
>> sdl...@li...
>> https://lists.sourceforge.net/lists/listinfo/sdljava-users
>>
>
>