Package com.jogamp.nativewindow.util

Class PixelFormatUtil

java.lang.Object

com.jogamp.nativewindow.util.PixelFormatUtil

public class PixelFormatUtil
extends Object

Pixel Rectangle Utilities.

All conversion methods are endian independent.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PixelFormatUtil.ComponentMap

Constructor Summary

Constructors

Constructor	Description
PixelFormatUtil()

Method Summary

Modifier and Type	Method	Description
static void	convert(int width, int height, ByteBuffer src_bb, PixelFormat src_fmt, boolean src_glOriented, int src_lineStride, ByteBuffer dst_bb, PixelFormat dst_fmt, boolean dst_glOriented, int dst_lineStride)
static void	convert(PixelFormatUtil.ComponentMap cmap, PixelFormat.Composition dstComp, Bitstream<ByteBuffer> dstBitStream, PixelFormat.Composition srcComp, Bitstream<ByteBuffer> srcBitStream)
static PixelRectangle	convert(PixelRectangle src, PixelFormat destFmt, int ddestStride, boolean isGLOriented, boolean destIsDirect)
static void	convert(PixelRectangle src, ByteBuffer dst_bb, PixelFormat dst_fmt, boolean dst_glOriented, int dst_lineStride)
static int	convertToInt32(PixelFormat dst_fmt, byte r, byte g, byte b, byte a)
static int	convertToInt32(PixelFormat dest_fmt, PixelFormat src_fmt, int src_pixel)
static int	convertToInt32(PixelFormat dst_fmt, PixelFormat src_fmt, ByteBuffer src, int srcOff)
static int	find(PixelFormat.CType s, PixelFormat.CType[] pool, boolean mapRGB2Y)
static PixelFormat	getReversed(PixelFormat fmt)	Returns the PixelFormat with reversed components of fmt.
static int	getShiftedI32(int bytesPerPixel, byte[] data, int offset)	Returns shifted bytes from the given data at given offset of maximal 4 bytesPerPixel.
static int	getShiftedI32(int bytesPerPixel, ByteBuffer data, boolean retainDataPos)	Returns shifted bytes from the given data at current position of maximal 4 bytesPerPixel.
static long	getShiftedI64(int bytesPerPixel, byte[] data, int offset)	Returns shifted bytes from the given data at given offset of maximal 8 bytesPerPixel.
static long	getShiftedI64(int bytesPerPixel, ByteBuffer data, boolean retainDataPos)	Returns shifted bytes from the given data at current position of maximal 8 bytesPerPixel.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PixelFormatUtil

public PixelFormatUtil()

Method Detail

find

public static final int find(PixelFormat.CType s,
                             PixelFormat.CType[] pool,
                             boolean mapRGB2Y)

getShiftedI32

public static int getShiftedI32(int bytesPerPixel,
                                byte[] data,
                                int offset)

Returns shifted bytes from the given data at given offset of maximal 4 bytesPerPixel.

Parameters:

bytesPerPixel - number of bytes per pixel to fetch, a maximum of 4 are allowed

data - byte buffer covering complete pixel at position offset

offset - byte offset of pixel data start

Returns:

the shifted 32bit integer value of the pixel

getShiftedI64

public static long getShiftedI64(int bytesPerPixel,
                                 byte[] data,
                                 int offset)

Returns shifted bytes from the given data at given offset of maximal 8 bytesPerPixel.

Parameters:

bytesPerPixel - number of bytes per pixel to fetch, a maximum of 4 are allowed

data - byte buffer covering complete pixel at position offset

offset - byte offset of pixel data start

Returns:

the shifted 64bit integer value of the pixel

getShiftedI32

public static int getShiftedI32(int bytesPerPixel,
                                ByteBuffer data,
                                boolean retainDataPos)

Returns shifted bytes from the given data at current position of maximal 4 bytesPerPixel.

Parameters:

bytesPerPixel - number of bytes per pixel to fetch, a maximum of 4 are allowed

data - byte buffer covering complete pixel at position offset

retainDataPos - if true, absolute ByteBuffer.get(int) is used and the data position stays unchanged. Otherwise relative ByteBuffer.get() is used and the data position changes.

Returns:

the shifted 32bit integer value of the pixel

getShiftedI64

public static long getShiftedI64(int bytesPerPixel,
                                 ByteBuffer data,
                                 boolean retainDataPos)

Returns shifted bytes from the given data at current position of maximal 8 bytesPerPixel.

Parameters:

bytesPerPixel - number of bytes per pixel to fetch, a maximum of 4 are allowed

data - byte buffer covering complete pixel at position offset

retainDataPos - if true, absolute ByteBuffer.get(int) is used and the data position stays unchanged. Otherwise relative ByteBuffer.get() is used and the data position changes.

Returns:

the shifted 64bit integer value of the pixel

getReversed

public static PixelFormat getReversed(PixelFormat fmt)

Returns the PixelFormat with reversed components of fmt. If no reversed PixelFormat is available, returns fmt.

convertToInt32

public static int convertToInt32(PixelFormat dst_fmt,
                                 byte r,
                                 byte g,
                                 byte b,
                                 byte a)

convertToInt32

public static int convertToInt32(PixelFormat dst_fmt,
                                 PixelFormat src_fmt,
                                 ByteBuffer src,
                                 int srcOff)

convertToInt32

public static int convertToInt32(PixelFormat dest_fmt,
                                 PixelFormat src_fmt,
                                 int src_pixel)

convert

public static PixelRectangle convert(PixelRectangle src,
                                     PixelFormat destFmt,
                                     int ddestStride,
                                     boolean isGLOriented,
                                     boolean destIsDirect)

convert

public static void convert(PixelRectangle src,
                           ByteBuffer dst_bb,
                           PixelFormat dst_fmt,
                           boolean dst_glOriented,
                           int dst_lineStride)
                    throws IllegalStateException

Parameters:

src -

dst_bb - ByteBuffer sink

dst_fmt - destination PixelFormat

dst_glOriented - if true, the source memory is laid out in OpenGL's coordinate system, origin at bottom left, otherwise origin at top left.

dst_lineStride - line stride in byte-size for destination, i.e. byte count from one line to the next. Must be >= dst_fmt.comp.bytesPerPixel() * width or zero for default stride.

Throws:

IllegalStateException

IllegalArgumentException - if src_lineStride or dst_lineStride is invalid

convert

public static void convert(int width,
                           int height,
                           ByteBuffer src_bb,
                           PixelFormat src_fmt,
                           boolean src_glOriented,
                           int src_lineStride,
                           ByteBuffer dst_bb,
                           PixelFormat dst_fmt,
                           boolean dst_glOriented,
                           int dst_lineStride)
                    throws IllegalStateException,
                           IllegalArgumentException

Parameters:

width - width of the to be converted pixel rectangle

height - height of the to be converted pixel rectangle

src_bb - ByteBuffer source

src_fmt - source PixelFormat

src_glOriented - if true, the source memory is laid out in OpenGL's coordinate system, origin at bottom left, otherwise origin at top left.

src_lineStride - line stride in byte-size for source, i.e. byte count from one line to the next. Must be >= src_fmt.comp.bytesPerPixel() * width or zero for default stride.

dst_bb - ByteBuffer sink

dst_fmt - destination PixelFormat

dst_glOriented - if true, the source memory is laid out in OpenGL's coordinate system, origin at bottom left, otherwise origin at top left.

dst_lineStride - line stride in byte-size for destination, i.e. byte count from one line to the next. Must be >= dst_fmt.comp.bytesPerPixel() * width or zero for default stride.

Throws:

IllegalStateException

IllegalArgumentException - if src_lineStride or dst_lineStride is invalid

convert

public static void convert(PixelFormatUtil.ComponentMap cmap,
                           PixelFormat.Composition dstComp,
                           Bitstream<ByteBuffer> dstBitStream,
                           PixelFormat.Composition srcComp,
                           Bitstream<ByteBuffer> srcBitStream)
                    throws IllegalStateException,
                           IOException

Throws:

IllegalStateException

IOException