| Methods Summary |
|---|
| public javax.imageio.metadata.IIOMetadata | convertImageMetadata(javax.imageio.metadata.IIOMetadata iioMetadata, javax.imageio.ImageTypeSpecifier imageTypeSpecifier, javax.imageio.ImageWriteParam imageWriteParam)
throw new UnsupportedOperationException("not supported yet");
|
| public javax.imageio.metadata.IIOMetadata | convertStreamMetadata(javax.imageio.metadata.IIOMetadata iioMetadata, javax.imageio.ImageWriteParam imageWriteParam)
throw new UnsupportedOperationException("not supported yet");
|
| public void | dispose()
super.dispose();
if (cinfo != 0) {
//???AWT: dispose(cinfo);
cinfo = 0;
ios = null;
}
|
| public static android.graphics.Bitmap | getBitmap()
return bm;
|
| public static java.awt.image.BufferedImage | getBufImage()
return bufImg;
|
| public javax.imageio.metadata.IIOMetadata | getDefaultImageMetadata(javax.imageio.ImageTypeSpecifier imageTypeSpecifier, javax.imageio.ImageWriteParam imageWriteParam)
throw new UnsupportedOperationException("not supported yet");
|
| public javax.imageio.metadata.IIOMetadata | getDefaultStreamMetadata(javax.imageio.ImageWriteParam imageWriteParam)
throw new UnsupportedOperationException("not supported yet");
|
| public javax.imageio.ImageWriteParam | getDefaultWriteParam()
return new JPEGImageWriteParam(getLocale());
|
| private int | getDestinationCSType(java.awt.image.RenderedImage image)Returns destination color space.
(YCbCr[A] for RGB)
int type = JPEGConsts.JCS_UNKNOW;
ColorModel cm = image.getColorModel();
if (null != cm) {
boolean hasAlpha = cm.hasAlpha();
ColorSpace cs = cm.getColorSpace();
switch(cs.getType()) {
case ColorSpace.TYPE_GRAY:
type = JPEGConsts.JCS_GRAYSCALE;
break;
case ColorSpace.TYPE_RGB:
type = hasAlpha ? JPEGConsts.JCS_YCbCrA : JPEGConsts.JCS_YCbCr;
break;
case ColorSpace.TYPE_YCbCr:
type = hasAlpha ? JPEGConsts.JCS_YCbCrA : JPEGConsts.JCS_YCbCr;
break;
case ColorSpace.TYPE_3CLR:
type = hasAlpha ? JPEGConsts.JCS_YCCA : JPEGConsts.JCS_YCC;
break;
case ColorSpace.TYPE_CMYK:
type = JPEGConsts.JCS_CMYK;
break;
}
}
return type;
|
| public static java.awt.image.RenderedImage | getRenImage()
return renImg;
|
| private void | getScanLine(int scanline)Callback for getting a next scanline
//-- TODO: processImageProgress in ImageWriter
Raster child = sourceRaster.createChild(srcXOff,
srcYOff + scanline * deltaY, srcWidth, 1, 0, 0, null);
scanRaster.setRect(child);
|
| private int | getSourceCSType(java.awt.image.RenderedImage image)Maps color space types to IJG color spaces
int type = JPEGConsts.JCS_UNKNOW;
ColorModel cm = image.getColorModel();
if (null == cm) {
return type;
}
if (cm instanceof IndexColorModel) {
throw new UnsupportedOperationException("IndexColorModel is not supported yet");
}
boolean hasAlpha = cm.hasAlpha();
ColorSpace cs = cm.getColorSpace();
switch(cs.getType()) {
case ColorSpace.TYPE_GRAY:
type = JPEGConsts.JCS_GRAYSCALE;
break;
case ColorSpace.TYPE_RGB:
type = hasAlpha ? JPEGConsts.JCS_RGBA : JPEGConsts.JCS_RGB;
break;
case ColorSpace.TYPE_YCbCr:
type = hasAlpha ? JPEGConsts.JCS_YCbCrA : JPEGConsts.JCS_YCbCr;
break;
case ColorSpace.TYPE_3CLR:
type = hasAlpha ? JPEGConsts.JCS_YCCA : JPEGConsts.JCS_YCC;
break;
case ColorSpace.TYPE_CMYK:
type = JPEGConsts.JCS_CMYK;
break;
}
return type;
|
| public void | setOutput(java.lang.Object output)
super.setOutput(output);
ios = (ImageOutputStream) output;
//???AWT: setIOS(ios, cinfo);
sourceRaster = null;
scanRaster = null;
srcXOff = 0;
srcYOff = 0;
srcWidth = 0;
srcHeight = 0;
deltaY = 1;
|
| public void | write(javax.imageio.metadata.IIOMetadata iioMetadata, javax.imageio.IIOImage iioImage, javax.imageio.ImageWriteParam param)
//???AWT
/*
System.loadLibrary("jpegencoder");
initWriterIds(ImageOutputStream.class);
*/
if (ios == null) {
throw new IllegalArgumentException("ios == null");
}
if (iioImage == null) {
throw new IllegalArgumentException("Image equals null");
}
RenderedImage img = null;
if (!iioImage.hasRaster()) {
img = iioImage.getRenderedImage();
if (img instanceof BufferedImage) {
sourceRaster = ((BufferedImage) img).getRaster();
} else {
sourceRaster = img.getData();
}
} else {
sourceRaster = iioImage.getRaster();
}
// AWT???: Debugging
if (DEBUG) {
if( img==null ) {
System.out.println("****J: Image is NULL");
} else {
renImg = img;
bufImg = (BufferedImage)img;
}
}
int numBands = sourceRaster.getNumBands();
int sourceIJGCs = img == null ? JPEGConsts.JCS_UNKNOW : getSourceCSType(img);
srcWidth = sourceRaster.getWidth();
srcHeight = sourceRaster.getHeight();
int destWidth = srcWidth;
int destHeight = srcHeight;
boolean progressive = false;
if (param != null) {
Rectangle reg = param.getSourceRegion();
if (reg != null) {
srcXOff = reg.x;
srcYOff = reg.y;
srcWidth = reg.width + srcXOff > srcWidth
? srcWidth - srcXOff
: reg.width;
srcHeight = reg.height + srcYOff > srcHeight
? srcHeight - srcYOff
: reg.height;
}
//-- TODO uncomment when JPEGImageWriteParam be implemented
//-- Only default progressive mode yet
// progressive = param.getProgressiveMode() == ImageWriteParam.MODE_DEFAULT;
//-- def is 1
deltaX = param.getSourceXSubsampling();
deltaY = param.getSourceYSubsampling();
//-- def is 0
int offsetX = param.getSubsamplingXOffset();
int offsetY = param.getSubsamplingYOffset();
srcXOff += offsetX;
srcYOff += offsetY;
srcWidth -= offsetX;
srcHeight -= offsetY;
destWidth = (srcWidth + deltaX - 1) / deltaX;
destHeight = (srcHeight + deltaY - 1) / deltaY;
}
//-- default DQTs (see JPEGQTable java doc and JPEG spec K1 & K2 tables)
//-- at http://www.w3.org/Graphics/JPEG/itu-t81.pdf
//-- Only figuring out how to set DQT in IJG library for future metadata
//-- support. IJG def tables are the same.
//JPEGQTable[] dqt = new JPEGQTable[2];
// int[][] dqt = null;
// int[][] dqt = new int[2][];
// dqt[0] = JPEGQTable.K1Div2Luminance.getTable();
// dqt[1] = JPEGQTable.K2Div2Chrominance.getTable();
//???AWT: I think we don't need this amymore
/*
//-- using default color space
//-- TODO: Take destination cs from param or use default if there is no cs
int destIJGCs = img == null ? JPEGConsts.JCS_UNKNOW : getDestinationCSType(img);
DataBufferByte dbuffer = new DataBufferByte(numBands * srcWidth);
scanRaster = Raster.createInterleavedRaster(dbuffer, srcWidth, 1,
numBands * srcWidth, numBands, JPEGConsts.BAND_OFFSETS[numBands], null);
encode(dbuffer.getData(), srcWidth, destWidth, destHeight, deltaX,
sourceIJGCs, destIJGCs, numBands, progressive,
null, cinfo);
*/
SampleModel model = sourceRaster.getSampleModel();
if (model instanceof SinglePixelPackedSampleModel) {
DataBufferInt ibuf = (DataBufferInt)sourceRaster.getDataBuffer();
int[] pixels = ibuf.getData();
// Create a bitmap with the pixel
bm = Bitmap.createBitmap(pixels, srcWidth, srcHeight, Bitmap.Config.ARGB_8888);
// Use Bitmap.compress() to write the image
ImageOutputStreamWrapper iosw = new ImageOutputStreamWrapper(ios);
bm.compress(CompressFormat.JPEG, 100, iosw);
} else {
// ???AWT: Add support for other color models
throw new RuntimeException("Color model not supported yet");
}
|
