本文整理汇总了Java中java.awt.image.Raster.getDataBuffer方法的典型用法代码示例。如果您正苦于以下问题:Java Raster.getDataBuffer方法的具体用法?Java Raster.getDataBuffer怎么用?Java Raster.getDataBuffer使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类java.awt.image.Raster
的用法示例。
在下文中一共展示了Raster.getDataBuffer方法的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getRaster
import java.awt.image.Raster; //导入方法依赖的package包/类
/**
* {@inheritDoc}
*/
public final Raster getRaster(int x, int y, int w, int h) {
// If working raster is big enough, reuse it. Otherwise,
// build a large enough new one.
Raster raster = saved;
if (raster == null ||
raster.getWidth() < w || raster.getHeight() < h)
{
raster = getCachedRaster(model, w, h);
saved = raster;
}
// Access raster internal int array. Because we use a DirectColorModel,
// we know the DataBuffer is of type DataBufferInt and the SampleModel
// is SinglePixelPackedSampleModel.
// Adjust for initial offset in DataBuffer and also for the scanline
// stride.
// These calls make the DataBuffer non-acceleratable, but the
// Raster is never Stable long enough to accelerate anyway...
DataBufferInt rasterDB = (DataBufferInt)raster.getDataBuffer();
int[] pixels = rasterDB.getData(0);
int off = rasterDB.getOffset();
int scanlineStride = ((SinglePixelPackedSampleModel)
raster.getSampleModel()).getScanlineStride();
int adjust = scanlineStride - w;
fillRaster(pixels, off, adjust, x, y, w, h); // delegate to subclass
return raster;
}
示例2: compose
import java.awt.image.Raster; //导入方法依赖的package包/类
public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {
int w = src.getWidth();
int h = src.getHeight();
DataBufferInt srcDB = (DataBufferInt) src.getDataBuffer();
DataBufferInt dstOutDB = (DataBufferInt) dstOut.getDataBuffer();
int srcRGB[] = srcDB.getBankData()[0];
int dstOutRGB[] = dstOutDB.getBankData()[0];
int srcOffset = srcDB.getOffset();
int dstOutOffset = dstOutDB.getOffset();
int srcScanStride = ((SinglePixelPackedSampleModel) src.getSampleModel()).getScanlineStride();
int dstOutScanStride = ((SinglePixelPackedSampleModel) dstOut.getSampleModel()).getScanlineStride();
int srcAdjust = srcScanStride - w;
int dstOutAdjust = dstOutScanStride - w;
int si = srcOffset;
int doi = dstOutOffset;
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
dstOutRGB[doi] = srcRGB[si] ^ 0x00ffffff;
si++;
doi++;
}
si += srcAdjust;
doi += dstOutAdjust;
}
}
示例3: getScaledIconData
import java.awt.image.Raster; //导入方法依赖的package包/类
public static DataBufferInt getScaledIconData(java.util.List<Image> imageList, int width, int height) {
BufferedImage bimage = getScaledIconImage(imageList, width, height);
if (bimage == null) {
return null;
}
Raster raster = bimage.getRaster();
DataBuffer buffer = raster.getDataBuffer();
return (DataBufferInt)buffer;
}
示例4: run
import java.awt.image.Raster; //导入方法依赖的package包/类
/**
* The runnable method for this class. This will produce an image using
* the current RenderableImage and RenderContext and send it to all the
* ImageConsumer currently registered with this class.
*/
public void run() {
// First get the rendered image
RenderedImage rdrdImage;
if (rc != null) {
rdrdImage = rdblImage.createRendering(rc);
} else {
rdrdImage = rdblImage.createDefaultRendering();
}
// And its ColorModel
ColorModel colorModel = rdrdImage.getColorModel();
Raster raster = rdrdImage.getData();
SampleModel sampleModel = raster.getSampleModel();
DataBuffer dataBuffer = raster.getDataBuffer();
if (colorModel == null) {
colorModel = ColorModel.getRGBdefault();
}
int minX = raster.getMinX();
int minY = raster.getMinY();
int width = raster.getWidth();
int height = raster.getHeight();
Enumeration<ImageConsumer> icList;
ImageConsumer ic;
// Set up the ImageConsumers
icList = ics.elements();
while (icList.hasMoreElements()) {
ic = icList.nextElement();
ic.setDimensions(width,height);
ic.setHints(ImageConsumer.TOPDOWNLEFTRIGHT |
ImageConsumer.COMPLETESCANLINES |
ImageConsumer.SINGLEPASS |
ImageConsumer.SINGLEFRAME);
}
// Get RGB pixels from the raster scanline by scanline and
// send to consumers.
int pix[] = new int[width];
int i,j;
int numBands = sampleModel.getNumBands();
int tmpPixel[] = new int[numBands];
for (j = 0; j < height; j++) {
for(i = 0; i < width; i++) {
sampleModel.getPixel(i, j, tmpPixel, dataBuffer);
pix[i] = colorModel.getDataElement(tmpPixel, 0);
}
// Now send the scanline to the Consumers
icList = ics.elements();
while (icList.hasMoreElements()) {
ic = icList.nextElement();
ic.setPixels(0, j, width, 1, colorModel, pix, 0, width);
}
}
// Now tell the consumers we're done.
icList = ics.elements();
while (icList.hasMoreElements()) {
ic = icList.nextElement();
ic.imageComplete(ImageConsumer.STATICIMAGEDONE);
}
}