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-rw-r--r--src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java27
-rw-r--r--src/jogl/classes/com/jogamp/opengl/impl/MemoryObject.java142
2 files changed, 158 insertions, 11 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java b/src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java
index ceabd3910..6ebda222b 100644
--- a/src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright (c) 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
@@ -40,7 +41,7 @@
package com.jogamp.opengl.impl;
import javax.media.opengl.*;
-import com.jogamp.common.util.IntIntHashMap;
+import com.jogamp.common.util.IntLongHashMap;
/**
* Tracks as closely as possible the sizes of allocated OpenGL buffer
@@ -93,17 +94,17 @@ public class GLBufferSizeTracker {
// objects, which is probably sub-optimal. The expected usage
// pattern of buffer objects indicates that the fact that this map
// never shrinks is probably not that bad.
- private IntIntHashMap bufferSizeMap;
+ private IntLongHashMap bufferSizeMap;
protected static final boolean DEBUG = Debug.debug("GLStatusTracker");
public GLBufferSizeTracker() {
- bufferSizeMap = new IntIntHashMap();
+ bufferSizeMap = new IntLongHashMap();
bufferSizeMap.setKeyNotFoundValue(-1);
}
public void setBufferSize(GLBufferStateTracker bufferStateTracker,
- int target, GL caller, int size) {
+ int target, GL caller, long size) {
// Need to do some similar queries to getBufferSize below
int buffer = bufferStateTracker.getBoundBufferObject(target, caller);
boolean valid = bufferStateTracker.isBoundBufferObjectKnown(target);
@@ -125,11 +126,11 @@ public class GLBufferSizeTracker {
// left to do except drop this piece of information on the floor.
}
- public void setDirectStateBufferSize(int buffer, GL caller, int size) {
+ public void setDirectStateBufferSize(int buffer, GL caller, long size) {
bufferSizeMap.put(buffer, size);
}
- public int getBufferSize(GLBufferStateTracker bufferStateTracker,
+ public long getBufferSize(GLBufferStateTracker bufferStateTracker,
int target,
GL caller) {
// See whether we know what buffer is currently bound to the given
@@ -149,25 +150,29 @@ public class GLBufferSizeTracker {
return getBufferSizeImpl(target, buffer, caller);
}
// We don't know what's going on in this case; query the GL for an answer
+ // FIXME: both functions return 'int' types, which is not suitable,
+ // since buffer lenght is 64bit ?
int[] tmp = new int[1];
caller.glGetBufferParameteriv(target, GL.GL_BUFFER_SIZE, tmp, 0);
if (DEBUG) {
System.err.println("GLBufferSizeTracker.getBufferSize(): no cached buffer information");
}
- return tmp[0];
+ return (long) tmp[0];
}
- public int getDirectStateBufferSize(int buffer, GL caller) {
+ public long getDirectStateBufferSize(int buffer, GL caller) {
return getBufferSizeImpl(0, buffer, caller);
}
- private int getBufferSizeImpl(int target, int buffer, GL caller) {
+ private long getBufferSizeImpl(int target, int buffer, GL caller) {
// See whether we know the size of this buffer object; at this
// point we almost certainly should if the application is
// written correctly
- int sz = bufferSizeMap.get(buffer);
+ long sz = bufferSizeMap.get(buffer);
if (0 > sz) {
// For robustness, try to query this value from the GL as we used to
+ // FIXME: both functions return 'int' types, which is not suitable,
+ // since buffer lenght is 64bit ?
int[] tmp = new int[1];
if(0==target) {
// DirectState ..
@@ -186,7 +191,7 @@ public class GLBufferSizeTracker {
" was zero; probably application error");
}
// Assume we just don't know what's happening
- sz = tmp[0];
+ sz = (long) tmp[0];
bufferSizeMap.put(buffer, sz);
if (DEBUG) {
System.err.println("GLBufferSizeTracker.getBufferSize(): made slow query to cache size " +
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/MemoryObject.java b/src/jogl/classes/com/jogamp/opengl/impl/MemoryObject.java
new file mode 100644
index 000000000..a691a6156
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/MemoryObject.java
@@ -0,0 +1,142 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl.impl;
+
+import java.nio.ByteBuffer;
+import java.util.HashMap;
+
+/**
+ *
+ */
+public class MemoryObject {
+ private long addr;
+ private long size;
+ private int hash32;
+ private ByteBuffer buffer=null;
+
+ public MemoryObject(long addr, long size) {
+ this.addr = addr;
+ this.size = size;
+ this.hash32 = getHash32(addr, size);
+ }
+
+ public void setBuffer(ByteBuffer buffer) {
+ this.buffer = buffer;
+ }
+
+ public ByteBuffer getBuffer() {
+ return this.buffer;
+ }
+
+ /**
+ * @return the 32bit hash value generated via {@link #getHash32(long, long)}
+ */
+ public int hashCode() {
+ return hash32;
+ }
+
+ /**
+ * Ignores the optional attached <code>ByteBuffer</code> intentionally.<br>
+ *
+ * @return true of reference is equal or <code>obj</code> is of type <code>MemoryObject</code>
+ * and <code>addr</code> and <code>size</code> is equal.<br>
+ */
+ public boolean equals(Object obj) {
+ if(this == obj) { return true; }
+ if(obj instanceof MemoryObject) {
+ MemoryObject m = (MemoryObject) obj;
+ return addr == m.addr && size == m.size ;
+ }
+ return false;
+ }
+
+ /**
+ * Generates a 32bit hash value by <code>addr</code> and <code>size</code>.<br>
+ * Ignores the optional attached <code>ByteBuffer</code> intentionally.<br>
+ */
+ public static int getHash32(long addr, long size) {
+ // avoid xor collisions of eg low/high parts
+ // 31 * x == (x << 5) - x
+ int hash = 31 + (int) addr ; // lo addr
+ hash = ((hash << 5) - hash) + (int) ( addr >>> 32 ) ; // hi addr
+ hash = ((hash << 5) - hash) + (int) size ; // lo size
+ hash = ((hash << 5) - hash) + (int) ( size >>> 32 ) ; // hi size
+
+ return hash;
+ }
+
+ /**
+ * Generates a 64bit hash value by <code>addr</code> and <code>size</code>.<br>
+ * Ignores the optional attached <code>ByteBuffer</code> intentionally.<br>
+ */
+ public static long getHash64(long addr, long size) {
+ // 31 * x == (x << 5) - x
+ final long hash = 31 + addr;
+ return ((hash << 5) - hash) + size;
+ }
+
+ public String toString() {
+ return "MemoryObject[addr 0x"+Long.toHexString(addr)+", size 0x"+Long.toHexString(size)+", hash32: 0x"+Integer.toHexString(hash32)+"]";
+ }
+
+ /**
+ * Verifies the hash map operation, ie
+ * <ul>
+ * <li>slow add: if !map.contains(obj0), the values are verified (slow)</li>
+ * <li>fast get: if map.contains(obj0), the mapped value is compared with equals (fast) </li>
+ * </ul>
+ * In case the above verification fails, a RuntimeException is thrown.<br>
+ * In such case the calculation of the hash value should either be tuned,<br>
+ * or we just cannot use hash mapping.<br>
+ *
+ * @param map the identity HashMap mapping MemoryObject to MemoryObject
+ * @param obj0 the MemoryObject to get or add in the map
+ * @return either the already mapped one where <code>obj0</code> != <code>return</code>,
+ * or the added <code>obj0</code> == <code>return</code>.
+ * @throws RuntimeException if hash collision occurs
+ */
+ public static MemoryObject getOrAddSafe(HashMap/*<MemoryObject,MemoryObject>*/ map, MemoryObject obj0) {
+ MemoryObject obj1 = (MemoryObject) map.get(obj0); // get identity (fast)
+ if(null == obj1) {
+ // verify hash collision (slow)
+ if( map.values().contains(obj0) ) {
+ throw new RuntimeException("Hash collision, hash !exist, but in values: "+obj0);
+ }
+ map.put(obj0, obj0);
+ obj1 = obj0;
+ } else {
+ // verify hash collision (ok)
+ if( !obj1.equals(obj0) ) {
+ throw new RuntimeException("Hash collision, hash equals, but objects not: query "+obj0+" != contained "+obj1);
+ }
+ }
+ return obj1;
+ }
+
+} \ No newline at end of file