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-rw-r--r--make/config/jogl/gl-impl-CustomCCode-gl4bc.c6
-rw-r--r--make/config/jogl/gl-impl-CustomCCode-gles1.c6
-rw-r--r--make/config/jogl/gl-impl-CustomCCode-gles2.c6
-rw-r--r--make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java92
-rw-r--r--make/config/jogl/gl-impl-CustomJavaCode-gles1.java63
-rw-r--r--make/config/jogl/gl-impl-CustomJavaCode-gles2.java63
-rw-r--r--src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java27
-rw-r--r--src/jogl/classes/com/jogamp/opengl/impl/MemoryObject.java142
8 files changed, 259 insertions, 146 deletions
diff --git a/make/config/jogl/gl-impl-CustomCCode-gl4bc.c b/make/config/jogl/gl-impl-CustomCCode-gl4bc.c
index 0bd8b68da..778559eba 100644
--- a/make/config/jogl/gl-impl-CustomCCode-gl4bc.c
+++ b/make/config/jogl/gl-impl-CustomCCode-gl4bc.c
@@ -30,10 +30,10 @@ Java_com_jogamp_opengl_impl_gl4_GL4bcImpl_dispatch_1glMapNamedBufferEXT(JNIEnv *
/* Java->C glue code:
* Java package: com.jogamp.opengl.impl.gl4.GL4bcImpl
- * Java method: ByteBuffer newDirectByteBuffer(long addr, int capacity);
- * C function: jobject newDirectByteBuffer(jlong addr, jint capacity);
+ * Java method: ByteBuffer newDirectByteBuffer(long addr, long capacity);
+ * C function: jobject newDirectByteBuffer(jlong addr, jlong capacity);
*/
JNIEXPORT jobject JNICALL
-Java_com_jogamp_opengl_impl_gl4_GL4bcImpl_newDirectByteBuffer(JNIEnv *env, jobject _unused, jlong addr, jint capacity) {
+Java_com_jogamp_opengl_impl_gl4_GL4bcImpl_newDirectByteBuffer(JNIEnv *env, jobject _unused, jlong addr, jlong capacity) {
return (*env)->NewDirectByteBuffer(env, (void*) (intptr_t) addr, capacity);
}
diff --git a/make/config/jogl/gl-impl-CustomCCode-gles1.c b/make/config/jogl/gl-impl-CustomCCode-gles1.c
index a71ca4aae..422935ba7 100644
--- a/make/config/jogl/gl-impl-CustomCCode-gles1.c
+++ b/make/config/jogl/gl-impl-CustomCCode-gles1.c
@@ -16,10 +16,10 @@ Java_com_jogamp_opengl_impl_es1_GLES1Impl_dispatch_1glMapBuffer(JNIEnv *env, job
/* Java->C glue code:
* Java package: com.jogamp.opengl.impl.es1.GLES1Impl
- * Java method: ByteBuffer newDirectByteBuffer(long addr, int capacity);
- * C function: jobject newDirectByteBuffer(jlong addr, jint capacity);
+ * Java method: ByteBuffer newDirectByteBuffer(long addr, long capacity);
+ * C function: jobject newDirectByteBuffer(jlong addr, jlong capacity);
*/
JNIEXPORT jobject JNICALL
-Java_com_jogamp_opengl_impl_es1_GLES1Impl_newDirectByteBuffer(JNIEnv *env, jobject _unused, jlong addr, jint capacity) {
+Java_com_jogamp_opengl_impl_es1_GLES1Impl_newDirectByteBuffer(JNIEnv *env, jobject _unused, jlong addr, jlong capacity) {
return (*env)->NewDirectByteBuffer(env, (void*) (intptr_t) addr, capacity);
}
diff --git a/make/config/jogl/gl-impl-CustomCCode-gles2.c b/make/config/jogl/gl-impl-CustomCCode-gles2.c
index f99822d65..86fc47b4b 100644
--- a/make/config/jogl/gl-impl-CustomCCode-gles2.c
+++ b/make/config/jogl/gl-impl-CustomCCode-gles2.c
@@ -16,10 +16,10 @@ Java_com_jogamp_opengl_impl_es2_GLES2Impl_dispatch_1glMapBuffer(JNIEnv *env, job
/* Java->C glue code:
* Java package: com.jogamp.opengl.impl.es2.GLES2Impl
- * Java method: ByteBuffer newDirectByteBuffer(long addr, int capacity);
- * C function: jobject newDirectByteBuffer(jlong addr, jint capacity);
+ * Java method: ByteBuffer newDirectByteBuffer(long addr, long capacity);
+ * C function: jobject newDirectByteBuffer(jlong addr, jlong capacity);
*/
JNIEXPORT jobject JNICALL
-Java_com_jogamp_opengl_impl_es2_GLES2Impl_newDirectByteBuffer(JNIEnv *env, jobject _unused, jlong addr, jint capacity) {
+Java_com_jogamp_opengl_impl_es2_GLES2Impl_newDirectByteBuffer(JNIEnv *env, jobject _unused, jlong addr, jlong capacity) {
return (*env)->NewDirectByteBuffer(env, (void*) (intptr_t) addr, capacity);
}
diff --git a/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java b/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java
index ff177ec94..6776feeb7 100644
--- a/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java
+++ b/make/config/jogl/gl-impl-CustomJavaCode-gl4bc.java
@@ -274,32 +274,7 @@ public boolean glIsPBOUnpackEnabled() {
return checkUnpackPBOEnabled(false);
}
-// Attempt to return the same ByteBuffer object from glMapBuffer if
-// the vertex buffer object's base address and size haven't changed
-private static class ARBVBOKey {
- private long addr;
- private int capacity;
-
- ARBVBOKey(long addr, int capacity) {
- this.addr = addr;
- this.capacity = capacity;
- }
-
- public int hashCode() {
- return (int) addr;
- }
-
- public boolean equals(Object o) {
- if ((o == null) || (!(o instanceof ARBVBOKey))) {
- return false;
- }
-
- ARBVBOKey other = (ARBVBOKey) o;
- return ((addr == other.addr) && (capacity == other.capacity));
- }
-}
-
-private Map/*<ARBVBOKey, ByteBuffer>*/ arbVBOCache = new HashMap();
+private HashMap/*<MemoryObject>*/ arbMemCache = new HashMap();
/** Entry point to C language function: <br> <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */
public java.nio.ByteBuffer glMapBuffer(int target, int access) {
@@ -307,53 +282,78 @@ public java.nio.ByteBuffer glMapBuffer(int target, int access) {
if (__addr_ == 0) {
throw new GLException("Method \"glMapBuffer\" not available");
}
- int sz = bufferSizeTracker.getBufferSize(bufferStateTracker, target, this);
+ final long sz = bufferSizeTracker.getBufferSize(bufferStateTracker, target, this);
if (0 == sz) {
return null;
}
- long addr;
- addr = dispatch_glMapBuffer(target, access, __addr_);
+ final long addr = dispatch_glMapBuffer(target, access, __addr_);
if (0 == addr) {
return null;
}
- ARBVBOKey key = new ARBVBOKey(addr, sz);
- ByteBuffer _res = (ByteBuffer) arbVBOCache.get(key);
- if (_res == null) {
- _res = newDirectByteBuffer(addr, sz);
- Buffers.nativeOrder(_res);
- arbVBOCache.put(key, _res);
+ ByteBuffer buffer;
+ MemoryObject memObj0 = new MemoryObject(addr, sz); // object and key
+ MemoryObject memObj1 = MemoryObject.getOrAddSafe(arbMemCache, memObj0);
+ if(memObj0 == memObj1) {
+ // just added ..
+ if(null != memObj0.getBuffer()) {
+ throw new InternalError();
+ }
+ buffer = newDirectByteBuffer(addr, sz);
+ Buffers.nativeOrder(buffer);
+ memObj0.setBuffer(buffer);
+ } else {
+ // already mapped
+ buffer = memObj1.getBuffer();
+ if(null == buffer) {
+ throw new InternalError();
+ }
}
- _res.position(0);
- return _res;
+ buffer.position(0);
+ return buffer;
}
/** Encapsulates function pointer for OpenGL function <br>: <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */
native private long dispatch_glMapBuffer(int target, int access, long glProcAddress);
/** Entry point to C language function: <code> GLvoid * {@native glMapNamedBufferEXT}(GLuint buffer, GLenum access); </code> <br>Part of <code>GL_EXT_direct_state_access</code> */
-public java.nio.ByteBuffer glMapNamedBufferEXT(int buffer, int access) {
+public java.nio.ByteBuffer glMapNamedBufferEXT(int bufferName, int access) {
final long __addr_ = ((GL4bcProcAddressTable)_context.getGLProcAddressTable())._addressof_glMapNamedBufferEXT;
if (__addr_ == 0) {
throw new GLException("Method \"glMapNamedBufferEXT\" not available");
}
- int sz = bufferSizeTracker.getDirectStateBufferSize(buffer, this);
+ final long sz = bufferSizeTracker.getDirectStateBufferSize(bufferName, this);
if (0 == sz) {
return null;
}
- long addr;
- addr = dispatch_glMapNamedBufferEXT(buffer, access, __addr_);
+ final long addr = dispatch_glMapNamedBufferEXT(bufferName, access, __addr_);
if (0 == addr) {
return null;
}
- ByteBuffer _res = newDirectByteBuffer(addr, sz);
- Buffers.nativeOrder(_res);
- _res.position(0);
- return _res;
+ ByteBuffer buffer;
+ MemoryObject memObj0 = new MemoryObject(addr, sz); // object and key
+ MemoryObject memObj1 = MemoryObject.getOrAddSafe(arbMemCache, memObj0);
+ if(memObj0 == memObj1) {
+ // just added ..
+ if(null != memObj0.getBuffer()) {
+ throw new InternalError();
+ }
+ buffer = newDirectByteBuffer(addr, sz);
+ Buffers.nativeOrder(buffer);
+ memObj0.setBuffer(buffer);
+ } else {
+ // already mapped
+ buffer = memObj1.getBuffer();
+ if(null == buffer) {
+ throw new InternalError();
+ }
+ }
+ buffer.position(0);
+ return buffer;
}
private native long dispatch_glMapNamedBufferEXT(int buffer, int access, long procAddress);
-native private ByteBuffer newDirectByteBuffer(long addr, int capacity);
+native private ByteBuffer newDirectByteBuffer(long addr, long capacity);
public void glVertexPointer(GLArrayData array) {
if(array.getComponentNumber()==0) return;
diff --git a/make/config/jogl/gl-impl-CustomJavaCode-gles1.java b/make/config/jogl/gl-impl-CustomJavaCode-gles1.java
index d29fe1645..faff8b89f 100644
--- a/make/config/jogl/gl-impl-CustomJavaCode-gles1.java
+++ b/make/config/jogl/gl-impl-CustomJavaCode-gles1.java
@@ -249,32 +249,7 @@ private boolean checkPackPBOEnabled(boolean throwException) {
return false;
}
-// Attempt to return the same ByteBuffer object from glMapBufferARB if
-// the vertex buffer object's base address and size haven't changed
-private static class ARBVBOKey {
- private long addr;
- private int capacity;
-
- ARBVBOKey(long addr, int capacity) {
- this.addr = addr;
- this.capacity = capacity;
- }
-
- public int hashCode() {
- return (int) addr;
- }
-
- public boolean equals(Object o) {
- if ((o == null) || (!(o instanceof ARBVBOKey))) {
- return false;
- }
-
- ARBVBOKey other = (ARBVBOKey) o;
- return ((addr == other.addr) && (capacity == other.capacity));
- }
-}
-
-private Map/*<ARBVBOKey, ByteBuffer>*/ arbVBOCache = new HashMap();
+private HashMap/*<MemoryObject>*/ arbMemCache = new HashMap();
/** Entry point to C language function: <br> <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */
public java.nio.ByteBuffer glMapBuffer(int target, int access) {
@@ -282,32 +257,40 @@ public java.nio.ByteBuffer glMapBuffer(int target, int access) {
if (__addr_ == 0) {
throw new GLException("Method \"glMapBuffer\" not available");
}
- int sz = bufferSizeTracker.getBufferSize(bufferStateTracker,
- target,
- this);
+ final long sz = bufferSizeTracker.getBufferSize(bufferStateTracker, target, this);
if (0 == sz) {
return null;
}
- long addr;
- addr = dispatch_glMapBuffer(target, access, __addr_);
+ final long addr = dispatch_glMapBuffer(target, access, __addr_);
if (0 == addr) {
return null;
}
- ARBVBOKey key = new ARBVBOKey(addr, sz);
- java.nio.ByteBuffer _res = (java.nio.ByteBuffer) arbVBOCache.get(key);
- if (_res == null) {
- _res = newDirectByteBuffer(addr, sz);
- Buffers.nativeOrder(_res);
- arbVBOCache.put(key, _res);
+ ByteBuffer buffer;
+ MemoryObject memObj0 = new MemoryObject(addr, sz); // object and key
+ MemoryObject memObj1 = MemoryObject.getOrAddSafe(arbMemCache, memObj0);
+ if(memObj0 == memObj1) {
+ // just added ..
+ if(null != memObj0.getBuffer()) {
+ throw new InternalError();
+ }
+ buffer = newDirectByteBuffer(addr, sz);
+ Buffers.nativeOrder(buffer);
+ memObj0.setBuffer(buffer);
+ } else {
+ // already mapped
+ buffer = memObj1.getBuffer();
+ if(null == buffer) {
+ throw new InternalError();
+ }
}
- _res.position(0);
- return _res;
+ buffer.position(0);
+ return buffer;
}
/** Encapsulates function pointer for OpenGL function <br>: <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */
native private long dispatch_glMapBuffer(int target, int access, long glProcAddress);
-native private ByteBuffer newDirectByteBuffer(long addr, int capacity);
+native private ByteBuffer newDirectByteBuffer(long addr, long capacity);
public void glVertexPointer(GLArrayData array) {
if(array.getComponentNumber()==0) return;
diff --git a/make/config/jogl/gl-impl-CustomJavaCode-gles2.java b/make/config/jogl/gl-impl-CustomJavaCode-gles2.java
index e65c491a2..e096d2185 100644
--- a/make/config/jogl/gl-impl-CustomJavaCode-gles2.java
+++ b/make/config/jogl/gl-impl-CustomJavaCode-gles2.java
@@ -259,32 +259,7 @@ private boolean checkPackPBOEnabled(boolean throwException) {
return false;
}
-// Attempt to return the same ByteBuffer object from glMapBufferARB if
-// the vertex buffer object's base address and size haven't changed
-private static class ARBVBOKey {
- private long addr;
- private int capacity;
-
- ARBVBOKey(long addr, int capacity) {
- this.addr = addr;
- this.capacity = capacity;
- }
-
- public int hashCode() {
- return (int) addr;
- }
-
- public boolean equals(Object o) {
- if ((o == null) || (!(o instanceof ARBVBOKey))) {
- return false;
- }
-
- ARBVBOKey other = (ARBVBOKey) o;
- return ((addr == other.addr) && (capacity == other.capacity));
- }
-}
-
-private Map/*<ARBVBOKey, ByteBuffer>*/ arbVBOCache = new HashMap();
+private HashMap/*<MemoryObject>*/ arbMemCache = new HashMap();
/** Entry point to C language function: <br> <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */
public java.nio.ByteBuffer glMapBuffer(int target, int access) {
@@ -292,32 +267,40 @@ public java.nio.ByteBuffer glMapBuffer(int target, int access) {
if (__addr_ == 0) {
throw new GLException("Method \"glMapBuffer\" not available");
}
- int sz = bufferSizeTracker.getBufferSize(bufferStateTracker,
- target,
- this);
+ final long sz = bufferSizeTracker.getBufferSize(bufferStateTracker, target, this);
if (0 == sz) {
return null;
}
- long addr;
- addr = dispatch_glMapBuffer(target, access, __addr_);
+ final long addr = dispatch_glMapBuffer(target, access, __addr_);
if (0 == addr) {
return null;
}
- ARBVBOKey key = new ARBVBOKey(addr, sz);
- java.nio.ByteBuffer _res = (java.nio.ByteBuffer) arbVBOCache.get(key);
- if (_res == null) {
- _res = newDirectByteBuffer(addr, sz);
- Buffers.nativeOrder(_res);
- arbVBOCache.put(key, _res);
+ ByteBuffer buffer;
+ MemoryObject memObj0 = new MemoryObject(addr, sz); // object and key
+ MemoryObject memObj1 = MemoryObject.getOrAddSafe(arbMemCache, memObj0);
+ if(memObj0 == memObj1) {
+ // just added ..
+ if(null != memObj0.getBuffer()) {
+ throw new InternalError();
+ }
+ buffer = newDirectByteBuffer(addr, sz);
+ Buffers.nativeOrder(buffer);
+ memObj0.setBuffer(buffer);
+ } else {
+ // already mapped
+ buffer = memObj1.getBuffer();
+ if(null == buffer) {
+ throw new InternalError();
+ }
}
- _res.position(0);
- return _res;
+ buffer.position(0);
+ return buffer;
}
/** Encapsulates function pointer for OpenGL function <br>: <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */
native private long dispatch_glMapBuffer(int target, int access, long glProcAddress);
-native private ByteBuffer newDirectByteBuffer(long addr, int capacity);
+native private ByteBuffer newDirectByteBuffer(long addr, long capacity);
public void glClearDepth(double depth) {
glClearDepthf((float)depth);
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
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 23:41:10 +0000