[gl4java-usergroup] proposal: NIO V Arrays via C2J ..

[Sven G. <sgo...@ja...>]

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proposal: 

	NIO V (for all) Arrays via C2J ..
	===================================

i would like to add NIO Buffer usage for all 
kind of arrays (for the 1.4 libs only, of course ;-)

e.g. (just added them to the manual glu part):

- --------------------------

/**
 * Original Function-Prototype :
 * <pre>
   extern void gluTessVertex ( GLUtesselator * tess , GLdouble * location , 
GLvoid * data ) ;
 * </pre>
 */
public final native void gluTessVertex ( long tess, DoubleBuffer location, 
Buffer data) ;

- --------------------------

we force usage of the DoubleBuffer type, so the user MUST
create a DoubleBuffer of a ByteBuffer via a view !

a bit more type clean .. 


- --------------------------
JNIEXPORT void JNICALL        
Java_gl4java_GLUFunc14JauJNI_gluTessVertex__JLjava_nio_DoubleBuffer_2Ljava_nio_Buffer_2 
(
 JNIEnv *env, jobject obj,
 jlong tess,
 jobject location,
 jobject data)
{
 jboolean isCopiedArray1 = JNI_FALSE;
 jdouble *ptr1 = NULL;
 void *ptr2 = NULL;

 if ( disp__gluTessVertex == NULL ) return;

 if(location!=NULL)
 {
   ptr1 = (jdouble *) (*env)->GetDirectBufferAddress(env, location);
   if (ptr1 == NULL) {
      (*env)->ThrowNew(env, (*env)->FindClass(env,
				"java/lang/IllegalArgumentException"),
                             "Argument 1 was not a direct double buffer");
      return ;
   }
 }

  .. etc ..


- --------------------------

today, only "void *" are wrapped up to any Buffer !

so "tomorrow", we can offer strict type Buffer's
for any specific typed array ...

please vote !

cheers, sven

- -- 
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