OpenCL bug fixes on MacOS.

Improved 64bit pointer detection.

src/java/org/lwjgl/DefaultSysImplementation.java

@@ -40,6 +40,7 @@ package org.lwjgl;
  */
 abstract class DefaultSysImplementation implements SysImplementation {
 	public native int getJNIVersion();
+	public native int getPointerSize();
 	public native void setDebug(boolean debug);
 
 	public long getTimerResolution() {

src/java/org/lwjgl/Sys.java

@@ -77,15 +77,13 @@ public final class Sys {
 		});
 	}
 
-	private static boolean loadLibrary(final String lib_name) {
+	private static void loadLibrary(final String lib_name) {
 		try {
 			doLoadLibrary(lib_name);
-			return false;
 		} catch (UnsatisfiedLinkError e) {
 			if (implementation.has64Bit()) {
 				try {
 					doLoadLibrary(lib_name + POSTFIX64BIT);
-					return true;
 				} catch (UnsatisfiedLinkError e2) {
 					LWJGLUtil.log("Failed to load 64 bit library: " + e2.getMessage());
 				}
@@ -97,13 +95,14 @@ public final class Sys {
 
 	static {
 		implementation = createImplementation();
-		is64Bit = loadLibrary(JNI_LIBRARY_NAME);
+		loadLibrary(JNI_LIBRARY_NAME);
+		is64Bit = implementation.getPointerSize() == 8;
 
 		int native_jni_version = implementation.getJNIVersion();
 		int required_version = implementation.getRequiredJNIVersion();
 		if (native_jni_version != required_version)
 			throw new LinkageError("Version mismatch: jar version is '" + required_version +
-                             "', native libary version is '" + native_jni_version + "'");
+                             "', native library version is '" + native_jni_version + "'");
 		implementation.setDebug(LWJGLUtil.DEBUG);
 	}
 

src/java/org/lwjgl/SysImplementation.java

@@ -51,6 +51,11 @@ interface SysImplementation {
 	 */
 	int getJNIVersion();
 
+	/**
+	 * Returns the platform's pointer size in bytes
+	 */
+	int getPointerSize();
+
 	void setDebug(boolean debug);
 
 	/**

src/java/org/lwjgl/opencl/APIUtil.java

@@ -430,9 +430,11 @@ final class APIUtil {
 	static Set<String> getExtensions(final String extensionList) {
 		final Set<String> extensions = new HashSet<String>();
 
-		final StringTokenizer tokenizer = new StringTokenizer(extensionList);
-		while ( tokenizer.hasMoreTokens() )
-			extensions.add(tokenizer.nextToken());
+		if ( extensionList != null ) {
+			final StringTokenizer tokenizer = new StringTokenizer(extensionList);
+			while ( tokenizer.hasMoreTokens() )
+				extensions.add(tokenizer.nextToken());
+		}
 
 		return extensions;
 	}

src/java/org/lwjgl/opencl/CallbackUtil.java

@@ -34,6 +34,8 @@ package org.lwjgl.opencl;
 import java.util.HashMap;
 import java.util.Map;
 
+import static org.lwjgl.opencl.CL10.*;
+
 /**
  * Utility class that handles OpenCL API callbacks.
  *
@@ -79,7 +81,7 @@ final class CallbackUtil {
 	 * @param user_data the GlobalRef memory address
 	 */
 	static void checkCallback(final int errcode, final long user_data) {
-		if ( errcode != 0x0 && user_data != 0 )
+		if ( errcode != CL_SUCCESS && user_data != 0 )
 			deleteGlobalRef(user_data);
 	}
 
@@ -107,7 +109,7 @@ final class CallbackUtil {
 	 * @param user_data the global reference pointer
 	 */
 	static void registerCallback(final CLContext context, final long user_data) {
-		if ( context.getPointer() == 0 ) {
+		if ( context.getPointerUnsafe() == 0 ) {
 			if ( user_data != 0 )
 				deleteGlobalRef(user_data);
 			return;

src/java/org/lwjgl/test/opencl/HelloOpenCL.java

@@ -33,6 +33,7 @@ package org.lwjgl.test.opencl;
 
 import org.lwjgl.BufferUtils;
 import org.lwjgl.LWJGLException;
+import org.lwjgl.LWJGLUtil;
 import org.lwjgl.PointerBuffer;
 import org.lwjgl.opencl.*;
 import org.lwjgl.opencl.api.CLBufferRegion;
@@ -49,7 +50,7 @@ public class HelloOpenCL {
 	public HelloOpenCL() {
 	}
 
-	protected void execute() {
+	protected static void execute() {
 		try {
 			CL.create();
 
@@ -135,28 +136,31 @@ public class HelloOpenCL {
 
 					clRetainMemObject(buffer);
 
-					final long exec_caps = device.getInfoLong(CL_DEVICE_EXECUTION_CAPABILITIES);
-					if ( (exec_caps & CL_EXEC_NATIVE_KERNEL) == CL_EXEC_NATIVE_KERNEL ) {
-						System.out.println("-TRYING TO EXEC NATIVE KERNEL-");
-						final CLCommandQueue queue = clCreateCommandQueue(context, device, 0, null);
+					if ( LWJGLUtil.getPlatform() != LWJGLUtil.PLATFORM_MACOSX ) {
+						// TODO: Native kernels crash on MacOSX, disable this until we can debug properly.
+						final long exec_caps = device.getInfoLong(CL_DEVICE_EXECUTION_CAPABILITIES);
+						if ( (exec_caps & CL_EXEC_NATIVE_KERNEL) == CL_EXEC_NATIVE_KERNEL ) {
+							System.out.println("-TRYING TO EXEC NATIVE KERNEL-");
+							final CLCommandQueue queue = clCreateCommandQueue(context, device, 0, null);
 
-						clEnqueueNativeKernel(queue, new CLNativeKernel() {
-							protected void execute(final ByteBuffer[] memobjs) {
-								if ( memobjs == null )
-									System.out.println("OK, it's null");
-								else {
-									System.out.println("memobjs = " + memobjs.length);
-									for ( int k = 0; k < memobjs.length; k++ ) {
-										System.out.println("memobjs[" + k + "].remaining() = " + memobjs[k].remaining());
-										for ( int l = memobjs[k].position(); l < memobjs[k].limit(); l++ ) {
-											memobjs[k].put(l, (byte)l);
+							clEnqueueNativeKernel(queue, new CLNativeKernel() {
+								protected void execute(final ByteBuffer[] memobjs) {
+									if ( memobjs == null )
+										System.out.println("OK, it's null");
+									else {
+										System.out.println("memobjs = " + memobjs.length);
+										for ( int k = 0; k < memobjs.length; k++ ) {
+											System.out.println("memobjs[" + k + "].remaining() = " + memobjs[k].remaining());
+											for ( int l = memobjs[k].position(); l < memobjs[k].limit(); l++ ) {
+												memobjs[k].put(l, (byte)l);
+											}
 										}
 									}
 								}
-							}
-						}, new CLMem[] { buffer }, new long[] { 128 }, null, null);
+							}, new CLMem[] { buffer }, new long[] { 128 }, null, null);
 
-						clFinish(queue);
+							clFinish(queue);
+						}
 					}
 
 					clReleaseMemObject(buffer);

src/native/common/common_tools.c

@@ -61,6 +61,10 @@ void putAttrib(attrib_list_t *list, int attrib) {
 	list->current_index++;
 }
 
+JNIEXPORT jint JNICALL Java_org_lwjgl_DefaultSysImplementation_getPointerSize(JNIEnv *env, jclass clazz) {
+    return (jint)sizeof(void *);
+}
+
 JNIEXPORT void JNICALL Java_org_lwjgl_DefaultSysImplementation_setDebug
   (JNIEnv *env, jobject ignored, jboolean enable) {
 	  debug = enable == JNI_TRUE ? true : false;