diff options
Diffstat (limited to 'src/java/com/jogamp/gluegen/runtime/StructAccessor.java')
| -rw-r--r--[-rwxr-xr-x] | src/java/com/jogamp/gluegen/runtime/StructAccessor.java | 494 |
1 files changed, 282 insertions, 212 deletions
diff --git a/src/java/com/jogamp/gluegen/runtime/StructAccessor.java b/src/java/com/jogamp/gluegen/runtime/StructAccessor.java index 4101571..80673a3 100755..100644 --- a/src/java/com/jogamp/gluegen/runtime/StructAccessor.java +++ b/src/java/com/jogamp/gluegen/runtime/StructAccessor.java @@ -36,221 +36,291 @@ * Sun gratefully acknowledges that this software was originally authored * and developed by Kenneth Bradley Russell and Christopher John Kline. */ - package com.jogamp.gluegen.runtime; import java.nio.*; +/** + * @author Kenneth Russel + * @author Michael Bien + */ public class StructAccessor { - private ByteBuffer bb; - private CharBuffer cb; - private DoubleBuffer db; - private FloatBuffer fb; - private IntBuffer ib; - private LongBuffer lb; - private ShortBuffer sb; - - public StructAccessor(ByteBuffer bb) { - // Setting of byte order is concession to native code which needs - // to instantiate these - this.bb = bb.order(ByteOrder.nativeOrder()); - } - - public ByteBuffer getBuffer() { - return bb; - } - - /** Return a slice of the current ByteBuffer starting at the - specified byte offset and extending the specified number of - bytes. Note that this method is not thread-safe with respect to - the other methods in this class. */ - public ByteBuffer slice(int byteOffset, int byteLength) { - bb.position(byteOffset); - bb.limit(byteOffset + byteLength); - ByteBuffer newBuf = bb.slice(); - bb.position(0); - bb.limit(bb.capacity()); - return newBuf; - } - - /** Retrieves the byte at the specified slot (byte offset). */ - public byte getByteAt(int slot) { - return bb.get(slot); - } - - /** Puts a byte at the specified slot (byte offset). */ - public void setByteAt(int slot, byte v) { - bb.put(slot, v); - } - - /** Retrieves the char at the specified slot (2-byte offset). */ - public char getCharAt(int slot) { - return charBuffer().get(slot); - } - - /** Puts a char at the specified slot (2-byte offset). */ - public void setCharAt(int slot, char v) { - charBuffer().put(slot, v); - } - - /** Retrieves the double at the specified slot (8-byte offset). */ - public double getDoubleAt(int slot) { - return doubleBuffer().get(slot); - } - - /** Puts a double at the specified slot (8-byte offset). */ - public void setDoubleAt(int slot, double v) { - doubleBuffer().put(slot, v); - } - - /** Retrieves the float at the specified slot (4-byte offset). */ - public float getFloatAt(int slot) { - return floatBuffer().get(slot); - } - - /** Puts a float at the specified slot (4-byte offset). */ - public void setFloatAt(int slot, float v) { - floatBuffer().put(slot, v); - } - - /** Retrieves the int at the specified slot (4-byte offset). */ - public int getIntAt(int slot) { - return intBuffer().get(slot); - } - - /** Puts a int at the specified slot (4-byte offset). */ - public void setIntAt(int slot, int v) { - intBuffer().put(slot, v); - } - - /** Retrieves the long at the specified slot (8-byte offset). */ - public long getLongAt(int slot) { - return longBuffer().get(slot); - } - - /** Puts a long at the specified slot (8-byte offset). */ - public void setLongAt(int slot, long v) { - longBuffer().put(slot, v); - } - - /** Retrieves the short at the specified slot (2-byte offset). */ - public short getShortAt(int slot) { - return shortBuffer().get(slot); - } - - /** Puts a short at the specified slot (2-byte offset). */ - public void setShortAt(int slot, short v) { - shortBuffer().put(slot, v); - } - - public void setBytesAt(int slot, byte[] v) { - for (int i = 0; i < v.length; i++) { - bb.put(slot++, v[i]); - } - } - - public byte[] getBytesAt(int slot, byte[] v) { - for (int i = 0; i < v.length; i++) { - v[i] = bb.get(slot++); - } - return v; - } - - public void setCharsAt(int slot, char[] v) { - for (int i = 0; i < v.length; i++) { - charBuffer().put(slot++, v[i]); - } - } - - public char[] getCharsAt(int slot, char[] v) { - for (int i = 0; i < v.length; i++) { - v[i] = charBuffer().get(slot++); - } - return v; - } - - public void setIntsAt(int slot, int[] v) { - for (int i = 0; i < v.length; i++) { - intBuffer().put(slot++, v[i]); - } - } - - public int[] getIntsAt(int slot, int[] v) { - for (int i = 0; i < v.length; i++) { - v[i] = intBuffer().get(slot++); - } - return v; - } - - public void setFloatsAt(int slot, float[] v) { - for (int i = 0; i < v.length; i++) { - floatBuffer().put(slot++, v[i]); - } - } - - public float[] getFloatsAt(int slot, float[] v) { - for (int i = 0; i < v.length; i++) { - v[i] = floatBuffer().get(slot++); - } - return v; - } - - public void setDoublesAt(int slot, double[] v) { - for (int i = 0; i < v.length; i++) { - doubleBuffer().put(slot++, v[i]); - } - } - - public double[] getDoublesAt(int slot, double[] v) { - for (int i = 0; i < v.length; i++) { - v[i] = doubleBuffer().get(slot++); - } - return v; - } - - //---------------------------------------------------------------------- - // Internals only below this point - // - - private CharBuffer charBuffer() { - if (cb == null) { - cb = bb.asCharBuffer(); - } - return cb; - } - - private DoubleBuffer doubleBuffer() { - if (db == null) { - db = bb.asDoubleBuffer(); - } - return db; - } - - private FloatBuffer floatBuffer() { - if (fb == null) { - fb = bb.asFloatBuffer(); - } - return fb; - } - - private IntBuffer intBuffer() { - if (ib == null) { - ib = bb.asIntBuffer(); - } - return ib; - } - - private LongBuffer longBuffer() { - if (lb == null) { - lb = bb.asLongBuffer(); - } - return lb; - } - - private ShortBuffer shortBuffer() { - if (sb == null) { - sb = bb.asShortBuffer(); - } - return sb; - } + + private ByteBuffer bb; + private FloatBuffer fb; + private IntBuffer ib; + private ShortBuffer sb; + + //Java SE only + private CharBuffer cb; + private DoubleBuffer db; + private LongBuffer lb; + + public StructAccessor(ByteBuffer bb) { + // Setting of byte order is concession to native code which needs + // to instantiate these + if(Platform.isJavaSE()) { + this.bb = bb.order(ByteOrder.nativeOrder()); + }else{ + // JSR 239 does not support the ByteOrder class or the order methods. + // The initial order of a byte buffer is the platform byte order. + this.bb = bb; + } + } + + public ByteBuffer getBuffer() { + return bb; + } + + /** + * Returns a slice of the current ByteBuffer starting at the + * specified byte offset and extending the specified number of + * bytes. Note that this method is not thread-safe with respect to + * the other methods in this class. + */ + public ByteBuffer slice(int byteOffset, int byteLength) { + bb.position(byteOffset); + bb.limit(byteOffset + byteLength); + ByteBuffer newBuf = bb.slice(); + bb.position(0); + bb.limit(bb.capacity()); + return newBuf; + } + + /** Retrieves the byte at the specified slot (byte offset). */ + public byte getByteAt(int slot) { + return bb.get(slot); + } + + /** Puts a byte at the specified slot (byte offset). */ + public void setByteAt(int slot, byte v) { + bb.put(slot, v); + } + + /** Retrieves the char at the specified slot (2-byte offset). */ + public char getCharAt(int slot) { + return charBuffer().get(slot); + } + + /** Puts a char at the specified slot (2-byte offset). */ + public void setCharAt(int slot, char v) { + charBuffer().put(slot, v); + } + + /** Retrieves the double at the specified slot (8-byte offset). */ + public double getDoubleAt(int slot) { + return doubleBuffer().get(slot); + } + + /** Puts a double at the specified slot (8-byte offset). */ + public void setDoubleAt(int slot, double v) { + doubleBuffer().put(slot, v); + } + + /** Retrieves the float at the specified slot (4-byte offset). */ + public float getFloatAt(int slot) { + return floatBuffer().get(slot); + } + + /** Puts a float at the specified slot (4-byte offset). */ + public void setFloatAt(int slot, float v) { + floatBuffer().put(slot, v); + } + + /** Retrieves the int at the specified slot (4-byte offset). */ + public int getIntAt(int slot) { + return intBuffer().get(slot); + } + + /** Puts a int at the specified slot (4-byte offset). */ + public void setIntAt(int slot, int v) { + intBuffer().put(slot, v); + } + + /** Retrieves the short at the specified slot (2-byte offset). */ + public short getShortAt(int slot) { + return shortBuffer().get(slot); + } + + /** Puts a short at the specified slot (2-byte offset). */ + public void setShortAt(int slot, short v) { + shortBuffer().put(slot, v); + } + + public void setBytesAt(int slot, byte[] v) { + for (int i = 0; i < v.length; i++) { + bb.put(slot++, v[i]); + } + } + + public byte[] getBytesAt(int slot, byte[] v) { + for (int i = 0; i < v.length; i++) { + v[i] = bb.get(slot++); + } + return v; + } + + public void setCharsAt(int slot, char[] v) { + for (int i = 0; i < v.length; i++) { + charBuffer().put(slot++, v[i]); + } + } + + public char[] getCharsAt(int slot, char[] v) { + for (int i = 0; i < v.length; i++) { + v[i] = charBuffer().get(slot++); + } + return v; + } + + public void setIntsAt(int slot, int[] v) { + for (int i = 0; i < v.length; i++) { + intBuffer().put(slot++, v[i]); + } + } + + public int[] getIntsAt(int slot, int[] v) { + for (int i = 0; i < v.length; i++) { + v[i] = intBuffer().get(slot++); + } + return v; + } + + public void setFloatsAt(int slot, float[] v) { + for (int i = 0; i < v.length; i++) { + floatBuffer().put(slot++, v[i]); + } + } + + public float[] getFloatsAt(int slot, float[] v) { + for (int i = 0; i < v.length; i++) { + v[i] = floatBuffer().get(slot++); + } + return v; + } + + /** + * Puts a double at the specified slot (8-byte offset). + * May throw an {@link UnsupportedOperationException} + */ + public void setDoublesAt(int slot, double[] v) { + for (int i = 0; i < v.length; i++) { + doubleBuffer().put(slot++, v[i]); + } + } + + /** + * Retrieves the long at the specified slot (8-byte offset). + * May throw an {@link UnsupportedOperationException} + */ + public double[] getDoublesAt(int slot, double[] v) { + for (int i = 0; i < v.length; i++) { + v[i] = doubleBuffer().get(slot++); + } + return v; + } + + /** + * Retrieves the long at the specified slot (8-byte offset). + */ + public long getLongAt(int slot) { + if(Platform.isJavaSE()){ + return longBuffer().get(slot); + }else{ + return getLongCDCAt(slot); + } + } + + /** + * Puts a long at the specified slot (8-byte offset). + */ + public void setLongAt(int slot, long v) { + if(Platform.isJavaSE()){ + longBuffer().put(slot, v); + }else{ + setLongCDCAt(slot, v); + } + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + + private final long getLongCDCAt(int slot) { + slot = slot << 1; // 8-byte to 4-byte offset + IntBuffer intBuffer = intBuffer(); + long lo = 0x00000000FFFFFFFFL & ((long) intBuffer.get(slot)); + long hi = 0x00000000FFFFFFFFL & ((long) intBuffer.get(slot + 1)); + if (BufferFactory.isLittleEndian()) { + return hi << 32 | lo; + } + return lo << 32 | hi; + } + + private final void setLongCDCAt(int slot, long v) { + slot = slot << 1; // 8-byte to 4-byte offset + IntBuffer intBuffer = intBuffer(); + int lo = (int) ((v) & 0x00000000FFFFFFFFL); + int hi = (int) ((v >> 32) & 0x00000000FFFFFFFFL); + if (BufferFactory.isLittleEndian()) { + intBuffer.put(slot, lo); + intBuffer.put(slot + 1, hi); + } else { + intBuffer.put(slot, hi); + intBuffer.put(slot + 1, lo); + } + } + + private final FloatBuffer floatBuffer() { + if (fb == null) { + fb = bb.asFloatBuffer(); + } + return fb; + } + + private final IntBuffer intBuffer() { + if (ib == null) { + ib = bb.asIntBuffer(); + } + return ib; + } + + private final ShortBuffer shortBuffer() { + if (sb == null) { + sb = bb.asShortBuffer(); + } + return sb; + } + + // - - Java SE only - - + + private final LongBuffer longBuffer() { + checkSE(); + if (lb == null) { + lb = bb.asLongBuffer(); + } + return lb; + } + + private final DoubleBuffer doubleBuffer() { + checkSE(); + if (db == null) { + db = bb.asDoubleBuffer(); + } + return db; + } + + private final CharBuffer charBuffer() { + checkSE(); + if (cb == null) { + cb = bb.asCharBuffer(); + } + return cb; + } + + private static void checkSE() { + if (!Platform.isJavaSE()) { + throw new UnsupportedOperationException("I am affraid, this Operation is not supportet on this platform."); + } + } } |