下面列出了java.awt.image.DataBufferInt#getData() 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public static final ByteBuffer getImageDataFromImage(BufferedImage bufferedImage) {
WritableRaster wr;
DataBuffer db;
BufferedImage bi = new BufferedImage(128, 64, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = bi.createGraphics();
g.drawImage(bufferedImage, null, null);
bufferedImage = bi;
wr = bi.getRaster();
db = wr.getDataBuffer();
DataBufferInt dbi = (DataBufferInt) db;
int[] data = dbi.getData();
ByteBuffer byteBuffer = ByteBuffer.allocateDirect(data.length * 4);
byteBuffer.order(ByteOrder.LITTLE_ENDIAN);
byteBuffer.asIntBuffer().put(data);
byteBuffer.flip();
return byteBuffer;
}
public static void convertScreenShot2(IntBuffer bgraBuf, BufferedImage out){
WritableRaster wr = out.getRaster();
DataBufferInt db = (DataBufferInt) wr.getDataBuffer();
int[] cpuArray = db.getData();
bgraBuf.clear();
bgraBuf.get(cpuArray);
// int width = wr.getWidth();
// int height = wr.getHeight();
//
// // flip the components the way AWT likes them
// for (int y = 0; y < height / 2; y++){
// for (int x = 0; x < width; x++){
// int inPtr = (y * width + x);
// int outPtr = ((height-y-1) * width + x);
// int pixel = cpuArray[inPtr];
// cpuArray[inPtr] = cpuArray[outPtr];
// cpuArray[outPtr] = pixel;
// }
// }
}
public static final ByteBuffer getImageDataFromImage(BufferedImage bufferedImage) {
WritableRaster wr;
DataBuffer db;
BufferedImage bi = new BufferedImage(128, 64, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = bi.createGraphics();
g.drawImage(bufferedImage, null, null);
bufferedImage = bi;
wr = bi.getRaster();
db = wr.getDataBuffer();
DataBufferInt dbi = (DataBufferInt) db;
int[] data = dbi.getData();
ByteBuffer byteBuffer = ByteBuffer.allocateDirect(data.length * 4);
byteBuffer.order(ByteOrder.LITTLE_ENDIAN);
byteBuffer.asIntBuffer().put(data);
byteBuffer.flip();
return byteBuffer;
}
/**
* {@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;
}
/**
* {@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;
}
/**
* {@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;
}
/**
* {@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;
}
/**
* {@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;
}
public static void WritePNGfile(String imagename, int[] linear, int width, int height) {
BufferedImage buf = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
DataBufferInt sh = (DataBufferInt) buf.getRaster().getDataBuffer();
int[] shd = sh.getData();
System.arraycopy(linear, 0, shd, 0, Math.min(linear.length, shd.length));
try {
ImageIO.write(buf, "PNG", new File(imagename));
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* {@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;
}
/**
* {@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;
}
/**
* {@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;
}
/**
* {@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;
}
@Override
public void paint(BufferedImage image, Graphics2D graphics) {
DataBuffer dataBuf = image.getRaster().getDataBuffer();
switch (dataBuf.getDataType()) {
case DataBuffer.TYPE_INT: {
// We chose RGB888 model, so Raster will use DataBufferInt type
DataBufferInt dataBuffer = (DataBufferInt)dataBuf;
int imageWidth = image.getWidth();
int imageHeight = image.getHeight();
// Paint rectangle directly on buffer, line by line
int[] imageBuffer = dataBuffer.getData();
for (int srcLine = 0, dstLine = y; srcLine < height && dstLine < imageHeight; srcLine++, dstLine++) {
try {
System.arraycopy(buf, srcLine * width, imageBuffer, x + dstLine * imageWidth, width);
} catch (IndexOutOfBoundsException e) {
s_logger.info("[ignored] buffer overflow!?!", e);
}
}
break;
}
default:
throw new RuntimeException("Unsupported data buffer in buffered image: expected data buffer of type int (DataBufferInt). Actual data buffer type: " +
dataBuf.getClass().getSimpleName());
}
}
@Override
public void paint(final BufferedImage image, final Graphics2D graphics) {
final DataBuffer dataBuf = image.getRaster().getDataBuffer();
switch (dataBuf.getDataType()) {
case DataBuffer.TYPE_INT: {
// We chose RGB888 model, so Raster will use DataBufferInt type
final DataBufferInt dataBuffer = (DataBufferInt) dataBuf;
final int imageWidth = image.getWidth();
final int imageHeight = image.getHeight();
// Paint rectangle directly on buffer, line by line
final int[] imageBuffer = dataBuffer.getData();
for (int srcLine = 0, dstLine = y; srcLine < height && dstLine < imageHeight; srcLine++, dstLine++) {
try {
System.arraycopy(buf, srcLine * width, imageBuffer, x + dstLine * imageWidth, width);
} catch (final IndexOutOfBoundsException e) {
s_logger.info("[ignored] buffer overflow!?!", e);
}
}
break;
}
default:
throw new RuntimeException("Unsupported data buffer in buffered image: expected data buffer of type int (DataBufferInt). Actual data buffer type: " +
dataBuf.getClass().getSimpleName());
}
}
private static BufferedImage createAlphaBackground(int width, int height) {
BufferedImage background = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
DataBufferInt dataBuffer = (DataBufferInt) background.getRaster().getDataBuffer();
int[] data = dataBuffer.getData();
int gray = Color.LIGHT_GRAY.getRGB();
int white = Color.WHITE.getRGB();
for (int i = 0; i < data.length; i++) {
int x = i % width;
int y = i / width;
data[i] = ((x / 4) % 2 == (y / 4) % 2) ? gray : white;
}
return background;
}
/**
* Compares whether two {@link BufferedImage}s are equal in data.
*
* @param expected The first {@link BufferedImage} to be compared.
* @param actual The second {@link BufferedImage} to be compared.
* @return A boolean indicating whether the given {@link BufferedImage}s are of the same image data.
*/
private boolean bufferedImagesEqual(final @Nonnull BufferedImage expected, final @Nonnull BufferedImage actual)
{
if (expected.getWidth() != actual.getWidth())
{
return false;
}
if (!expected.getColorModel().equals(actual.getColorModel()))
{
return false;
}
final DataBuffer aBuffer = expected.getRaster().getDataBuffer();
final DataBuffer bBuffer = actual.getRaster().getDataBuffer();
final DataBufferInt aBufferInt = (DataBufferInt) aBuffer;
final DataBufferInt bBufferInt = (DataBufferInt) bBuffer;
if (aBufferInt.getNumBanks() != bBufferInt.getNumBanks())
{
return false;
}
for (int i = 0; i < aBufferInt.getNumBanks(); i++)
{
final int[] aDataBank = aBufferInt.getData(i);
final int[] bDataBank = bBufferInt.getData(i);
if (!Arrays.equals(aDataBank, bDataBank))
{
return false;
}
}
return true;
}
private static int[] getData(BufferedImage image) {
WritableRaster wr = image.getRaster();
DataBufferInt dbi = (DataBufferInt) wr.getDataBuffer();
return dbi.getData();
// return ((DataBufferInt) image.getRaster().getDataBuffer()).getData();
}
@Override
public void write(AwtImage image, ImageMetadata metadata, OutputStream out) throws IOException {
if (image.awt().getType() == BufferedImage.TYPE_INT_ARGB) {
ImageInfo imi = new ImageInfo(image.width, image.height, 8, true);
ar.com.hjg.pngj.PngWriter writer = new ar.com.hjg.pngj.PngWriter(out, imi);
writer.setCompLevel(compressionLevel);
writer.setFilterType(FilterType.FILTER_DEFAULT);
DataBufferInt db = (DataBufferInt) image.awt().getRaster().getDataBuffer();
if (db.getNumBanks() != 1) throw new RuntimeException("This method expects one bank");
SinglePixelPackedSampleModel samplemodel = (SinglePixelPackedSampleModel) image.awt().getSampleModel();
ImageLineInt line = new ImageLineInt(imi);
int[] dbbuf = db.getData();
for (int row = 0; row < imi.rows; row++) {
int elem = samplemodel.getOffset(0, row);
int j = 0;
for (int col = 0; col < imi.cols; col++) {
int sample = dbbuf[elem];
elem = elem + 1;
line.getScanline()[j] = (sample & 0xFF0000) >> 16; // R
j = j + 1;
line.getScanline()[j] = (sample & 0xFF00) >> 8; // G
j = j + 1;
line.getScanline()[j] = sample & 0xFF; // B
j = j + 1;
line.getScanline()[j] = ((sample & 0xFF000000) >> 24) & 0xFF; // A
j = j + 1;
}
writer.writeRow(line, row);
}
writer.end();// end calls close
} else {
ImageIO.write(image.awt(), "png", out);
}
}
public static boolean equals(BufferedImage image1, BufferedImage image2) {
final int image1Width = image1.getWidth();
final int image1Height = image1.getHeight();
final int image2Width = image2.getWidth();
final int image2Height = image2.getHeight();
if (image1Width != image2Width || image1Height != image2Height)
return false;
final DataBuffer image1Buffer = image1.getData().getDataBuffer();
final DataBuffer image2Buffer = image2.getData().getDataBuffer();
final int image1BufferSize = image1Buffer.getSize();
final int image2BufferSize = image2Buffer.getSize();
if (image1BufferSize != image2BufferSize)
return false;
if (image1Buffer instanceof DataBufferInt && image2Buffer instanceof DataBufferInt) {
// compare according to https://stackoverflow.com/a/11006984
final DataBufferInt image1BufferInt = (DataBufferInt) image1Buffer;
final DataBufferInt image2BufferInt = (DataBufferInt) image2Buffer;
if (image1BufferInt.getNumBanks() != image2BufferInt.getNumBanks())
return false;
for (int bank = 0; bank < image1BufferInt.getNumBanks(); bank++) {
int[] actual = image1BufferInt.getData(bank);
int[] expected = image2BufferInt.getData(bank);
if (!Arrays.equals(actual, expected))
return false;
}
} else {
// compare according to https://stackoverflow.com/a/51497360
for (int i = 0; i < image1BufferSize; i++) {
if (image1Buffer.getElem(i) != image2Buffer.getElem(i)) {
return false;
}
}
}
//for (int x = 0; x < image1Width; x++) {
// for (int y = 0; y < image1Height; y++) {
// if (image1.getRGB(x, y) != image2.getRGB(x, y)) {
// return false;
// }
// }
//}
return true;
}