266 lines
8.4 KiB
Java
266 lines
8.4 KiB
Java
/*
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* Copyright (c) 2002-2011 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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package org.lwjgl.util.mapped;
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import org.lwjgl.LWJGLUtil;
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import org.lwjgl.MemoryUtil;
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import java.nio.ByteBuffer;
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/**
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* [INTERNAL USE ONLY]
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* <p/>
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* Helper class used by the bytecode transformer.
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*
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* @author Riven
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*/
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public class MappedHelper {
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public static void setup(MappedObject mo, ByteBuffer buffer, int align, int sizeof) {
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if ( LWJGLUtil.CHECKS && mo.baseAddress != 0L )
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throw new IllegalStateException("this method should not be called by user-code");
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if ( LWJGLUtil.CHECKS && !buffer.isDirect() )
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throw new IllegalArgumentException("bytebuffer must be direct");
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mo.preventGC = buffer;
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if ( LWJGLUtil.CHECKS && align <= 0 )
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throw new IllegalArgumentException("invalid alignment");
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mo.align = align;
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if ( LWJGLUtil.CHECKS && (sizeof <= 0 || sizeof % align != 0) )
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throw new IllegalStateException("sizeof not a multiple of alignment");
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mo.sizeof = sizeof;
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long addr = MemoryUtil.getAddress(buffer);
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if ( LWJGLUtil.CHECKS && addr % align != 0 )
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throw new IllegalStateException("buffer address not aligned on " + align + " bytes");
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mo.baseAddress = mo.viewAddress = addr;
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}
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public static void checkAddress(MappedObject mapped, long viewAddress) {
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mapped.checkAddress(viewAddress);
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}
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public static void put_views(MappedSet2 set, int view) {
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set.view(view);
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}
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public static void put_views(MappedSet3 set, int view) {
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set.view(view);
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}
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public static void put_views(MappedSet4 set, int view) {
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set.view(view);
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}
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public static void put_view(MappedObject mapped, int view, int sizeof) {
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mapped.setViewAddress(mapped.baseAddress + view * sizeof);
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}
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public static int get_view(MappedObject mapped, int sizeof) {
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return (int)(mapped.viewAddress - mapped.baseAddress) / sizeof;
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}
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public static void put_view_shift(MappedObject mapped, int view, int sizeof_shift) {
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mapped.setViewAddress(mapped.baseAddress + (view << sizeof_shift));
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}
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public static int get_view_shift(MappedObject mapped, int sizeof_shift) {
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return ((int)(mapped.viewAddress - mapped.baseAddress)) >> sizeof_shift;
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}
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public static void put_view_next(MappedObject mapped, int sizeof) {
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mapped.setViewAddress(mapped.viewAddress + sizeof);
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}
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public static MappedObject dup(MappedObject src, MappedObject dst) {
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dst.baseAddress = src.baseAddress;
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dst.viewAddress = src.viewAddress;
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dst.align = src.align;
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dst.sizeof = src.sizeof;
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dst.preventGC = src.preventGC;
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return dst;
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}
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public static MappedObject slice(MappedObject src, MappedObject dst) {
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dst.baseAddress = src.viewAddress; // !
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dst.viewAddress = src.viewAddress;
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dst.align = src.align;
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dst.sizeof = src.sizeof;
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dst.preventGC = src.preventGC;
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return dst;
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}
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public static void copy(MappedObject src, MappedObject dst, int bytes) {
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if ( MappedObject.CHECKS ) {
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src.checkRange(bytes);
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dst.checkRange(bytes);
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}
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MappedObjectUnsafe.INSTANCE.copyMemory(src.viewAddress, dst.viewAddress, bytes);
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}
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public static ByteBuffer newBuffer(long address, int capacity) {
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return MappedObjectUnsafe.newBuffer(address, capacity);
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}
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// ---- primitive fields read/write
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// byte
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public static void bput(byte value, long addr) {
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MappedObjectUnsafe.INSTANCE.putByte(addr, value);
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}
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public static void bput(MappedObject mapped, byte value, int fieldOffset) {
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MappedObjectUnsafe.INSTANCE.putByte(mapped.viewAddress + fieldOffset, value);
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}
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public static byte bget(long addr) {
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return MappedObjectUnsafe.INSTANCE.getByte(addr);
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}
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public static byte bget(MappedObject mapped, int fieldOffset) {
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return MappedObjectUnsafe.INSTANCE.getByte(mapped.viewAddress + fieldOffset);
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}
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// short
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public static void sput(short value, long addr) {
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MappedObjectUnsafe.INSTANCE.putShort(addr, value);
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}
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public static void sput(MappedObject mapped, short value, int fieldOffset) {
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MappedObjectUnsafe.INSTANCE.putShort(mapped.viewAddress + fieldOffset, value);
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}
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public static short sget(long addr) {
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return MappedObjectUnsafe.INSTANCE.getShort(addr);
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}
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public static short sget(MappedObject mapped, int fieldOffset) {
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return MappedObjectUnsafe.INSTANCE.getShort(mapped.viewAddress + fieldOffset);
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}
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// char
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public static void cput(char value, long addr) {
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MappedObjectUnsafe.INSTANCE.putChar(addr, value);
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}
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public static void cput(MappedObject mapped, char value, int fieldOffset) {
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MappedObjectUnsafe.INSTANCE.putChar(mapped.viewAddress + fieldOffset, value);
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}
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public static char cget(long addr) {
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return MappedObjectUnsafe.INSTANCE.getChar(addr);
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}
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public static char cget(MappedObject mapped, int fieldOffset) {
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return MappedObjectUnsafe.INSTANCE.getChar(mapped.viewAddress + fieldOffset);
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}
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// int
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public static void iput(int value, long addr) {
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MappedObjectUnsafe.INSTANCE.putInt(addr, value);
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}
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public static void iput(MappedObject mapped, int value, int fieldOffset) {
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MappedObjectUnsafe.INSTANCE.putInt(mapped.viewAddress + fieldOffset, value);
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}
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public static int iget(long address) {
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return MappedObjectUnsafe.INSTANCE.getInt(address);
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}
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public static int iget(MappedObject mapped, int fieldOffset) {
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return MappedObjectUnsafe.INSTANCE.getInt(mapped.viewAddress + fieldOffset);
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}
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// float
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public static void fput(float value, long addr) {
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MappedObjectUnsafe.INSTANCE.putFloat(addr, value);
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}
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public static void fput(MappedObject mapped, float value, int fieldOffset) {
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MappedObjectUnsafe.INSTANCE.putFloat(mapped.viewAddress + fieldOffset, value);
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}
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public static float fget(long addr) {
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return MappedObjectUnsafe.INSTANCE.getFloat(addr);
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}
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public static float fget(MappedObject mapped, int fieldOffset) {
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return MappedObjectUnsafe.INSTANCE.getFloat(mapped.viewAddress + fieldOffset);
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}
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// long
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public static void jput(long value, long addr) {
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MappedObjectUnsafe.INSTANCE.putLong(addr, value);
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}
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public static void jput(MappedObject mapped, long value, int fieldOffset) {
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MappedObjectUnsafe.INSTANCE.putLong(mapped.viewAddress + fieldOffset, value);
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}
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public static long jget(long addr) {
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return MappedObjectUnsafe.INSTANCE.getLong(addr);
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}
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public static long lget(MappedObject mapped, int fieldOffset) {
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return MappedObjectUnsafe.INSTANCE.getLong(mapped.viewAddress + fieldOffset);
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}
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// double
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public static void dput(double value, long addr) {
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MappedObjectUnsafe.INSTANCE.putDouble(addr, value);
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}
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public static void dput(MappedObject mapped, double value, int fieldOffset) {
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MappedObjectUnsafe.INSTANCE.putDouble(mapped.viewAddress + fieldOffset, value);
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}
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public static double dget(long addr) {
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return MappedObjectUnsafe.INSTANCE.getDouble(addr);
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}
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public static double dget(MappedObject mapped, int fieldOffset) {
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return MappedObjectUnsafe.INSTANCE.getDouble(mapped.viewAddress + fieldOffset);
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}
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} |