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authorSven Gothel <[email protected]>2010-11-06 23:13:39 +0100
committerSven Gothel <[email protected]>2010-11-06 23:13:39 +0100
commit6f2d046c8d532db94f6af5003e341104d5bf4aff (patch)
tree723c31b8f9c1097ae48486acbf68e4e06fab2517 /src/java/com/sun/gluegen/StructLayout.java
parentec6d61f4597af32c22319c4bda3c9dd9ab80bf25 (diff)
Renamed com.sun.gluegen -> com.jogamp.gluegen
Diffstat (limited to 'src/java/com/sun/gluegen/StructLayout.java')
-rw-r--r--src/java/com/sun/gluegen/StructLayout.java154
1 files changed, 0 insertions, 154 deletions
diff --git a/src/java/com/sun/gluegen/StructLayout.java b/src/java/com/sun/gluegen/StructLayout.java
deleted file mode 100644
index 111c19f..0000000
--- a/src/java/com/sun/gluegen/StructLayout.java
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package com.sun.gluegen;
-
-import com.sun.gluegen.cgram.types.*;
-
-/** Encapsulates algorithm for laying out data structures. Note that
- this ends up embedding code in various places via SizeThunks. If
- the 32-bit and 64-bit ports on a given platform differ
- fundamentally in their handling of struct layout then this code
- will need to be updated and, most likely, two versions of the
- SizeThunks maintained in various places. */
-
-public class StructLayout {
- private int baseOffset;
- private int structAlignment;
-
- protected StructLayout(int baseOffset,
- int structAlignment) {
- this.baseOffset = baseOffset;
- this.structAlignment = structAlignment;
- }
-
- public void layout(CompoundType t) {
- int n = t.getNumFields();
- SizeThunk curOffset = SizeThunk.constant(baseOffset);
- SizeThunk maxSize = SizeThunk.constant(0);
- for (int i = 0; i < n; i++) {
- Field f = t.getField(i);
- Type ft = f.getType();
- if (ft.isInt() || ft.isFloat() || ft.isDouble() || ft.isPointer()) {
- SizeThunk sz = ft.getSize();
- curOffset = SizeThunk.roundUp(curOffset, sz);
- f.setOffset(curOffset);
- if (t.isUnion()) {
- maxSize = SizeThunk.max(maxSize, sz);
- } else {
- curOffset = SizeThunk.add(curOffset, sz);
- }
- } else if (ft.isCompound()) {
- new StructLayout(0, structAlignment).layout(ft.asCompound());
- curOffset = SizeThunk.roundUp(curOffset, SizeThunk.constant(structAlignment));
- f.setOffset(curOffset);
- if (t.isUnion()) {
- maxSize = SizeThunk.max(maxSize, ft.getSize());
- } else {
- curOffset = SizeThunk.add(curOffset, ft.getSize());
- }
- } else if (ft.isArray()) {
- ArrayType arrayType = ft.asArray();
- CompoundType compoundElementType = arrayType.getBaseElementType().asCompound();
- if (compoundElementType != null) {
- new StructLayout(0, structAlignment).layout(compoundElementType);
- arrayType.recomputeSize();
- }
- // Note: not sure how this rounding is done
- curOffset = SizeThunk.roundUp(curOffset, SizeThunk.constant(structAlignment));
- f.setOffset(curOffset);
- curOffset = SizeThunk.add(curOffset, ft.getSize());
- } else {
- // FIXME
- String name = t.getName();
- if (name == null) {
- name = t.toString();
- }
- throw new RuntimeException("Complicated field types (" + ft +
- " " + f.getName() +
- " in type " + name +
- ") not implemented yet");
- }
- }
- // FIXME: I think the below is wrong; better check with some examples
- // if ((curOffset % structAlignment) != 0) {
- // curOffset += structAlignment - (curOffset % structAlignment);
- // }
- if (t.isUnion()) {
- t.setSize(maxSize);
- } else {
- t.setSize(curOffset);
- }
- }
-
-
-
- public static StructLayout createForCurrentPlatform() {
- // Note: this code is replicated in (from?) Platform.java
- String os = System.getProperty("os.name").toLowerCase();
- String cpu = System.getProperty("os.arch").toLowerCase();
- if ((os.startsWith("windows") && cpu.equals("x86"))) {
- // It appears that Windows uses a packing alignment of 4 bytes in 32-bit mode
- return new StructLayout(0, 4);
- } else if ((os.startsWith("windows") && cpu.equals("amd64")) ||
- (os.startsWith("linux") && cpu.equals("i386")) ||
- (os.startsWith("linux") && cpu.equals("x86")) ||
- (os.startsWith("linux") && cpu.equals("amd64")) ||
- (os.startsWith("linux") && cpu.equals("x86_64")) ||
- (os.startsWith("linux") && cpu.equals("ia64")) ||
- (os.startsWith("sunos") && cpu.equals("sparc")) ||
- (os.startsWith("sunos") && cpu.equals("sparcv9")) ||
- (os.startsWith("sunos") && cpu.equals("x86")) ||
- (os.startsWith("sunos") && cpu.equals("amd64")) ||
- (os.startsWith("mac os") && cpu.equals("ppc")) ||
- (os.startsWith("mac os") && cpu.equals("i386")) ||
- (os.startsWith("mac os") && cpu.equals("x86_64")) ||
- (os.startsWith("freebsd") && cpu.equals("i386")) ||
- (os.startsWith("freebsd") && cpu.equals("amd64")) ||
- (os.startsWith("hp-ux") && cpu.equals("pa_risc2.0"))
- ) {
- // FIXME: make struct alignment configurable? May need to change
- // packing rules on a per-type basis?
- return new StructLayout(0, 8);
- } else {
- // FIXME: add more ports
- throw new RuntimeException("Please port StructLayout to your OS (" + os + ") and CPU (" + cpu + ")");
- }
- }
-}