private static final DynamicLibraryBundle cgDynamicLookupHelper; private static final CgProcAddressTable cgProcAddressTable; static { cgProcAddressTable = new CgProcAddressTable(); if(null==cgProcAddressTable) { throw new RuntimeException("Couldn't instantiate CgProcAddressTable"); } cgDynamicLookupHelper = AccessController.doPrivileged(new PrivilegedAction<DynamicLibraryBundle>() { public DynamicLibraryBundle run() { return new DynamicLibraryBundle(new CgDynamicLibraryBundleInfo()); } } ); if(null==cgDynamicLookupHelper) { throw new RuntimeException("Null CgDynamicLookupHelper"); } if(!cgDynamicLookupHelper.isToolLibLoaded()) { throw new RuntimeException("Couln't load native Cg or CgGL library"); } if(!cgDynamicLookupHelper.isGlueLibLoaded(CgDynamicLibraryBundleInfo.getCgGlueLibIndex())) { throw new RuntimeException("Couln't load native GLue/JNI library"); } cgProcAddressTable.reset(cgDynamicLookupHelper); } public static CgProcAddressTable getCgProcAddressTable() { return cgProcAddressTable; } /** A convenience method which reads all available data from the InputStream and then calls cgCreateProgram. */ public static CGprogram cgCreateProgramFromStream(CGcontext ctx, int program_type, java.io.InputStream stream, int profile, java.lang.String entry, java.lang.String[] args) throws java.io.IOException { if (stream == null) { throw new java.io.IOException("null stream"); } stream = new java.io.BufferedInputStream(stream); int avail = stream.available(); byte[] data = new byte[avail]; int numRead = 0; int pos = 0; do { if (pos + avail > data.length) { byte[] newData = new byte[pos + avail]; System.arraycopy(data, 0, newData, 0, pos); data = newData; } numRead = stream.read(data, pos, avail); if (numRead >= 0) { pos += numRead; } avail = stream.available(); } while (avail > 0 && numRead >= 0); String program = new String(data, 0, pos, "US-ASCII"); return cgCreateProgram(ctx, program_type, program, profile, entry, args); }