115 lines
4.1 KiB
C
115 lines
4.1 KiB
C
/*
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* Copyright (c) 2002-2008 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <mach-o/dyld.h>
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#include <stdlib.h>
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#include <string.h>
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#include <CoreFoundation/CoreFoundation.h>
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#include "extcl.h"
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#include "common_tools.h"
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/**
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* OpenCL library management
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*/
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static const struct mach_header* handleOCL = NULL;
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static CFBundleRef opencl_bundle = NULL;
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void *extcl_NativeGetFunctionPointer(const char *function) {
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void *address = NULL;
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if (handleOCL != NULL) {
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char *mac_symbol_name = (char *)malloc((strlen(function) + 2)*sizeof(char));
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if (mac_symbol_name == NULL)
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return NULL;
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mac_symbol_name[0] = '_';
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strcpy(&(mac_symbol_name[1]), function);
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NSSymbol symbol = NSLookupSymbolInImage(handleOCL, mac_symbol_name, NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
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free(mac_symbol_name);
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if (symbol != NULL) {
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address = NSAddressOfSymbol(symbol);
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}
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} else if (opencl_bundle != NULL) {
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CFStringRef cf_function = CFStringCreateWithCString(NULL, function, kCFStringEncodingUTF8);
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address = CFBundleGetFunctionPointerForName(opencl_bundle, cf_function);
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CFRelease(cf_function);
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}
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return address;
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}
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static CFBundleRef tryLoadFramework(JNIEnv *env) {
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CFStringRef framework_path = CFSTR("/System/Library/Frameworks/OpenCL.framework");
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if (framework_path == NULL) {
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printfDebugJava(env, "Failed to allocate string");
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return NULL;
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}
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CFURLRef url = CFURLCreateWithFileSystemPath(NULL, framework_path, kCFURLPOSIXPathStyle, TRUE);
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if (url == NULL) {
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printfDebugJava(env, "Failed to allocate URL");
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return NULL;
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}
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CFBundleRef opencl_bundle = CFBundleCreate(NULL, url);
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CFRelease(url);
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return opencl_bundle;
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}
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void extcl_LoadLibrary(JNIEnv *env, jstring path) {
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const char *path_str = (*env)->GetStringUTFChars(env, path, NULL);
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printfDebugJava(env, "Testing '%s'", path_str);
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handleOCL = NSAddImage(path_str, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
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if (handleOCL != NULL) {
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printfDebugJava(env, "Found OpenCL at '%s'", path_str);
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} else {
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throwException(env, "Could not load OpenCL library");
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}
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(*env)->ReleaseStringUTFChars(env, path, path_str);
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}
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/**
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* Unloads the OpenCL Library
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*/
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void extcl_UnloadLibrary() {
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if (opencl_bundle != NULL) {
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CFRelease(opencl_bundle);
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opencl_bundle = NULL;
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}
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opencl_CL_nCreateDefault(JNIEnv *env, jclass clazz) {
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opencl_bundle = tryLoadFramework(env);
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if (opencl_bundle != NULL)
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printfDebugJava(env, "Found OpenCL Bundle");
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else
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throwException(env, "Could not load OpenCL framework");
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}
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