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authorSven Gothel <[email protected]>2023-06-17 05:23:04 +0200
committerSven Gothel <[email protected]>2023-06-17 05:23:04 +0200
commit8b1db2e6cce3289ed043f85660505551b11e3374 (patch)
treeb85fab688f0dcf1a92087b347ead0db1d5f41fbe /src
parent106a552817e6da2845052b48ebbfc14cf05edbd5 (diff)
ElementBuffer: Add absolute get/put multi-element with full srcElemPos, destElemPos, elementCount argument set and use it for the single absolute get/put methods.
Diffstat (limited to 'src')
-rw-r--r--src/java/com/jogamp/common/nio/ElementBuffer.java65
1 files changed, 42 insertions, 23 deletions
diff --git a/src/java/com/jogamp/common/nio/ElementBuffer.java b/src/java/com/jogamp/common/nio/ElementBuffer.java
index f9909b8..e1e47bb 100644
--- a/src/java/com/jogamp/common/nio/ElementBuffer.java
+++ b/src/java/com/jogamp/common/nio/ElementBuffer.java
@@ -110,28 +110,37 @@ public class ElementBuffer extends AbstractBuffer<ElementBuffer> {
if (0 > offset || offset + length > capacity) {
throw new IndexOutOfBoundsException("idx "+offset+" + elementCount "+length+" not within [0.."+capacity+"), "+this);
}
- final ByteBuffer src = (ByteBuffer)buffer;
+ final ByteBuffer src = getByteBuffer();
final int oldPos = src.position();
final int oldLimit = src.limit();
- src.position(elementSize*offset);
- src.limit(elementSize * (offset + length));
+ src.position( elementSize * offset ).limit(elementSize * (offset + length));
final ByteBuffer ref = src.slice().order(src.order()); // slice and duplicate may change byte order
- src.position(oldPos);
- src.limit(oldLimit);
+ src.position( oldPos ).limit( oldLimit );
return ref;
}
- /** Absolute get method. Copy the element-bytes at the given index, storing them into `destElemBytes`. */
- public final ByteBuffer get(final int idx, final ByteBuffer destElemBytes) {
- if (0 > idx || idx >= capacity) {
- throw new IndexOutOfBoundsException("idx "+idx+" not within [0.."+capacity+"), "+this);
- }
- final ByteBuffer bBuffer = (ByteBuffer)buffer;
- for(int i=0; i<elementSize; ++i) {
- destElemBytes.put(i, bBuffer.get(elementSize*idx+i));
- }
+ /** Absolute get method. Get element-bytes for `elementCount` elements from this buffer at `srcElemPos` into `destElemBytes` at the given element-index `destElemPos` */
+ public final ByteBuffer get(final int srcElemPos, final ByteBuffer destElemBytes, final int destElemPos, final int elementCount) {
+ if (0 > srcElemPos || srcElemPos + elementCount > capacity || 0 > elementCount ||
+ 0 > destElemPos || elementSize * ( destElemPos + elementCount ) > destElemBytes.limit() )
+ {
+ throw new IndexOutOfBoundsException("destElemPos "+destElemPos+", srcElemPos "+srcElemPos+", elementCount "+elementCount+
+ ", srcCapacity "+capacity+", destLimit "+(destElemBytes.limit()/elementSize)+", "+this);
+ }
+ final ByteBuffer srcElemBytes = getByteBuffer();
+ final int oldSrcLim = srcElemBytes.limit();
+ srcElemBytes.position( srcElemPos * elementSize ).limit( ( srcElemPos + elementCount ) * elementSize ); // remaining = elementCount * elementSize
+ final int oldDestPos = destElemBytes.position();
+ destElemBytes.position( destElemPos * elementSize );
+ destElemBytes.put(srcElemBytes).position(oldDestPos);
+ srcElemBytes.limit(oldSrcLim).rewind();
return destElemBytes;
}
+
+ /** Absolute get method. Copy the element-bytes from this buffer at the given element-index `srcElemPos`, storing them into `destElemBytes`. */
+ public final ByteBuffer get(final int srcElemPos, final ByteBuffer destElemBytes) {
+ return get(srcElemPos, destElemBytes, 0, 1);
+ }
/** Relative get method. Copy the element-bytes at the current position and increment the position by one, storing the element-bytes into `destElemBytes`. */
public final ByteBuffer get(final ByteBuffer destElemBytes) {
final ByteBuffer r = get(position, destElemBytes);
@@ -156,17 +165,27 @@ public class ElementBuffer extends AbstractBuffer<ElementBuffer> {
return this;
}
- /** Absolute put method. Put the element-bytes at the given element-index */
- public final ElementBuffer put(final int idx, final ByteBuffer srcElemBytes) {
- if (0 > idx || idx >= capacity) {
- throw new IndexOutOfBoundsException("idx "+idx+" not within [0.."+capacity+"), "+this);
- }
- final ByteBuffer bBuffer = (ByteBuffer)buffer;
- for(int i=0; i<elementSize; ++i) {
- bBuffer.put(elementSize*idx+i, srcElemBytes.get(i));
- }
+ /** Absolute put method. Put element-bytes for `elementCount` elements from `srcElemBytes` at `srcElemPos` into this buffer at the given element-index `destElemPos` */
+ public final ElementBuffer put(final ByteBuffer srcElemBytes, final int srcElemPos, final int destElemPos, final int elementCount) {
+ if (0 > destElemPos || destElemPos + elementCount > capacity || 0 > elementCount ||
+ 0 > srcElemPos || elementSize * ( srcElemPos + elementCount ) > srcElemBytes.limit() )
+ {
+ throw new IndexOutOfBoundsException("srcElemPos "+srcElemPos+", destElemPos "+destElemPos+", elementCount "+elementCount+
+ ", destCapacity "+capacity+", srcLimit "+(srcElemBytes.limit()/elementSize)+", "+this);
+ }
+ final ByteBuffer destElemBytes = getByteBuffer();
+ final int oldSrcPos = srcElemBytes.position();
+ final int oldSrcLim = srcElemBytes.limit();
+ srcElemBytes.position( srcElemPos * elementSize ).limit( ( srcElemPos + elementCount ) * elementSize ); // remaining = elementCount * elementSize
+ destElemBytes.position( elementSize * destElemPos );
+ destElemBytes.put(srcElemBytes).rewind();
+ srcElemBytes.limit(oldSrcLim).position(oldSrcPos);
return this;
}
+ /** Absolute put method. Put element-bytes from `srcElemBytes` into the given element-index `destElemPos` */
+ public final ElementBuffer put(final int destElemPos, final ByteBuffer srcElemBytes) {
+ return put(srcElemBytes, 0, destElemPos, 1);
+ }
/** Relative put method. Put the element-bytes at the current position and increment the position by one. */
public final ElementBuffer put(final ByteBuffer srcElemBytes) {
put(position, srcElemBytes);