diff options
Diffstat (limited to 'libjava/classpath/gnu/java/awt/Buffers.java')
-rw-r--r-- | libjava/classpath/gnu/java/awt/Buffers.java | 88 |
1 files changed, 35 insertions, 53 deletions
diff --git a/libjava/classpath/gnu/java/awt/Buffers.java b/libjava/classpath/gnu/java/awt/Buffers.java index c6ccf91..2015634 100644 --- a/libjava/classpath/gnu/java/awt/Buffers.java +++ b/libjava/classpath/gnu/java/awt/Buffers.java @@ -144,25 +144,7 @@ public final class Buffers */ public static Object getData(DataBuffer buffer) { - if (buffer instanceof DataBufferByte) - return ((DataBufferByte) buffer).getData(); - - if (buffer instanceof DataBufferShort) - return ((DataBufferShort) buffer).getData(); - - if (buffer instanceof DataBufferUShort) - return ((DataBufferUShort) buffer).getData(); - - if (buffer instanceof DataBufferInt) - return ((DataBufferInt) buffer).getData(); - - if (buffer instanceof DataBufferFloat) - return ((DataBufferFloat) buffer).getData(); - - if (buffer instanceof DataBufferDouble) - return ((DataBufferDouble) buffer).getData(); - - throw new ClassCastException("Unknown data buffer type"); + return getData(buffer, 0, null, 0, buffer.getSize()); } @@ -172,46 +154,46 @@ public final class Buffers * given destination array is null. */ public static Object getData(DataBuffer src, int srcOffset, - Object dest, int destOffset, + Object dest, int dstOffset, int length) { Object from; - if (src instanceof DataBufferByte) - { - from = ((DataBufferByte) src).getData(); - if (dest == null) dest = new byte[length+destOffset]; - } - else if (src instanceof DataBufferShort) - { - from = ((DataBufferShort) src).getData(); - if (dest == null) dest = new short[length+destOffset]; - } - else if (src instanceof DataBufferUShort) - { - from = ((DataBufferUShort) src).getData(); - if (dest == null) dest = new short[length+destOffset]; - } - else if (src instanceof DataBufferInt) - { - from = ((DataBufferInt) src).getData(); - if (dest == null) dest = new int[length+destOffset]; - } - else if (src instanceof DataBufferFloat) - { - from = ((DataBufferFloat) src).getData(); - if (dest == null) dest = new float[length+destOffset]; - } - else if (src instanceof DataBufferDouble) - { - from = ((DataBufferDouble) src).getData(); - if (dest == null) dest = new double[length+destOffset]; - } - else + switch(src.getDataType()) { + case DataBuffer.TYPE_BYTE: + if (dest == null) dest = new byte[length+dstOffset]; + for(int i = 0; i < length; i++) + ((byte[])dest)[i + dstOffset] = (byte)src.getElem(i + srcOffset); + break; + + case DataBuffer.TYPE_DOUBLE: + if (dest == null) dest = new double[length+dstOffset]; + for(int i = 0; i < length; i++) + ((double[])dest)[i + dstOffset] = src.getElemDouble(i + srcOffset); + break; + + case DataBuffer.TYPE_FLOAT: + if (dest == null) dest = new float[length+dstOffset]; + for(int i = 0; i < length; i++) + ((float[])dest)[i + dstOffset] = src.getElemFloat(i + srcOffset); + break; + + case DataBuffer.TYPE_INT: + if (dest == null) dest = new int[length+dstOffset]; + for(int i = 0; i < length; i++) + ((int[])dest)[i + dstOffset] = src.getElem(i + srcOffset); + break; + + case DataBuffer.TYPE_SHORT: + case DataBuffer.TYPE_USHORT: + if (dest == null) dest = new short[length+dstOffset]; + for(int i = 0; i < length; i++) + ((short[])dest)[i + dstOffset] = (short)src.getElem(i + srcOffset); + break; + + case DataBuffer.TYPE_UNDEFINED: throw new ClassCastException("Unknown data buffer type"); } - - System.arraycopy(from, srcOffset, dest, destOffset, length); return dest; } |