下面列出了java.awt.image.DataBufferByte#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 void readKey8(byte[] in, int offset, int length, BufferedImage img) {
DataBufferByte buf = (DataBufferByte) img.getRaster().getDataBuffer();
WritableRaster raster = img.getRaster();
int scanlineStride = raster.getSampleModel().getWidth();
Rectangle r = raster.getBounds();
r.x -= raster.getSampleModelTranslateX();
r.y -= raster.getSampleModelTranslateY();
int h=img.getHeight();
int w=img.getWidth();
int i=offset;
int j=r.x+r.y*scanlineStride+(h-1)*scanlineStride;
byte[] out=buf.getData();
for (int y=0;y<h;y++) {
System.arraycopy(in,i,out,j,w);
i+=w;
j-=scanlineStride;
}
}
/** Bytewise OR of the black pixels */
private void byteLoop(Raster src0, Raster src1,
WritableRaster dst, Rectangle dstRect) {
int w = dst.getWidth();
int h = dst.getHeight();
DataBufferByte src0db = (DataBufferByte) src0.getDataBuffer();
DataBufferByte src1db = (DataBufferByte) src1.getDataBuffer();
DataBufferByte dstdb = (DataBufferByte) dst.getDataBuffer();
byte src0Data[] = src0db.getData();
byte src1Data[] = src1db.getData();
byte dstData[] = dstdb.getData();
MultiPixelPackedSampleModel src0sm =
(MultiPixelPackedSampleModel) src0.getSampleModel();
MultiPixelPackedSampleModel src1sm =
(MultiPixelPackedSampleModel) src1.getSampleModel();
MultiPixelPackedSampleModel dstsm =
(MultiPixelPackedSampleModel) dst.getSampleModel();
int src0ScanlineStride = src0sm.getScanlineStride();
int src1ScanlineStride = src1sm.getScanlineStride();
int dstScanlineStride = dstsm.getScanlineStride();
int white = getWhite();
if (white == 0) {
for (int offset = 0; offset < h*dstScanlineStride; offset++) {
dstData[offset] = (byte) (src0Data[offset] | src1Data[offset]);
}
} else {
for (int offset = 0; offset < h*dstScanlineStride; offset++) {
dstData[offset] = (byte) (src0Data[offset] & src1Data[offset]);
}
}
}
public static boolean bufferedImagesEqualQuick(BufferedImage image1, BufferedImage image2) {
DataBuffer dataBuffer1 = image1.getRaster().getDataBuffer();
DataBuffer dataBuffer2 = image2.getRaster().getDataBuffer();
if (dataBuffer1 instanceof DataBufferByte && dataBuffer2 instanceof DataBufferByte) {
DataBufferByte dataBufferBytes1 = (DataBufferByte) dataBuffer1;
DataBufferByte dataBufferBytes2 = (DataBufferByte) dataBuffer2;
for (int bank = 0; bank < dataBufferBytes1.getNumBanks(); bank++) {
byte[] bytes1 = dataBufferBytes1.getData(bank);
byte[] bytes2 = dataBufferBytes2.getData(bank);
if (!Arrays.equals(bytes1, bytes2)) {
return false;
}
}
} else if (dataBuffer1 instanceof DataBufferInt && dataBuffer2 instanceof DataBufferInt) {
DataBufferInt dataBufferInt1 = (DataBufferInt) dataBuffer1;
DataBufferInt dataBufferInt2 = (DataBufferInt) dataBuffer2;
for (int bank = 0; bank < dataBufferInt1.getNumBanks(); bank++) {
int[] ints1 = dataBufferInt1.getData(bank);
int[] ints2 = dataBufferInt2.getData(bank);
if (!Arrays.equals(ints1, ints2)) {
return false;
}
}
} else {
return false;
}
return true;
}
private Object extractImageData(BufferedImage img){
DataBuffer buf = img.getRaster().getDataBuffer();
switch (buf.getDataType()){
case DataBuffer.TYPE_BYTE:
DataBufferByte byteBuf = (DataBufferByte) buf;
return byteBuf.getData();
case DataBuffer.TYPE_USHORT:
DataBufferUShort shortBuf = (DataBufferUShort) buf;
return shortBuf.getData();
}
return null;
}
/** Constructs a DirectRasterAccessor object */
public DirectRasterAccessor(Raster raster, ColorModel cm) {
DataBuffer db = raster.getDataBuffer();
offsetX = raster.getMinX()-raster.getSampleModelTranslateX();
offsetY = raster.getMinY()-raster.getSampleModelTranslateY();
if (!(db instanceof DataBufferByte)) {
throw new RuntimeException("DataBuffer of Raster not of correct type " +
"(expected DataBufferByte, got " +
db.getClass().getName() + ")");
}
DataBufferByte dbb = (DataBufferByte) db;
SampleModel sm = raster.getSampleModel();
if (!(sm instanceof MultiPixelPackedSampleModel)) {
throw new RuntimeException("SampleModel of Raster not of correct type " +
"(expected MultiPixelPackedSampleModel, got " +
sm.getClass().getName() + ")");
}
MultiPixelPackedSampleModel mppsm = (MultiPixelPackedSampleModel) sm;
data = dbb.getData();
scanlineStride = mppsm.getScanlineStride();
if (cm.getRGB(0) == Color.white.getRGB()) {
white = 0;
black = 1;
} else {
white = 1;
black = 0;
}
}
public static void WritePNGfile(String imagename, byte[] linear, int width, int height, IndexColorModel icm) {
BufferedImage buf = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_INDEXED, icm);
DataBufferByte sh = (DataBufferByte) buf.getRaster().getDataBuffer();
byte[] 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();
}
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
/** Does vertical RLSA */
private void byteLoop_v(Raster src, WritableRaster dst) {
int minX = getMinX();
int maxX = getMaxX();
int minY = getMinY();
int maxY = getMaxY();
DataBufferByte srcdb = (DataBufferByte) src.getDataBuffer();
DataBufferByte dstdb = (DataBufferByte) dst.getDataBuffer();
byte srcData[] = srcdb.getData();
byte dstData[] = dstdb.getData();
MultiPixelPackedSampleModel srcsm = (MultiPixelPackedSampleModel) src.getSampleModel();
MultiPixelPackedSampleModel dstsm = (MultiPixelPackedSampleModel) dst.getSampleModel();
int srcScanlineStride = srcsm.getScanlineStride();
int dstScanlineStride = dstsm.getScanlineStride();
int srcScanlineOffset = minY*srcScanlineStride;
int dstScanlineOffset = 0;
int[] column = new int[maxY];
int white = getWhite();
for (int x = minX, dstx = 0; x < maxX; x++, dstx++) {
int srcxOffset = x / 8;
int srcxBit = x % 8;
int dstxOffset = dstx / 8;
int dstxBit = dstx % 8;
int srcLineOffset = srcScanlineOffset;
int dstLineOffset = dstScanlineOffset;
int lasty = minY-(threshold+2);
if (white == 0) {
for (int y = minY; y < maxY; y++) {
if ((srcData[srcLineOffset+srcxOffset] & bitAccess[srcxBit]) != 0) {
column[y] = 1;
if (y < lasty+threshold+2) {
for (int i = lasty; i<y; i++) {
column[i] = 1;
}
}
lasty = y;
} else {
column[y] = 0;
}
srcLineOffset += srcScanlineStride;
}
} else {
for (int y = minY; y < maxY; y++) {
if ((srcData[srcLineOffset+srcxOffset] & bitAccess[srcxBit]) == 0) {
column[y] = 0;
if (y < lasty+threshold+2) {
for (int i = lasty; i<y; i++) {
column[i] = 0;
}
}
lasty = y;
} else {
column[y] = 1;
}
srcLineOffset += srcScanlineStride;
}
}
// Copy resulting column onto image
for (int srcy = minY, lineOffset = 0; srcy < maxY; srcy++, lineOffset += dstScanlineStride) {
if (column[srcy] == 1) {
dstData[lineOffset+dstxOffset] |= bitAccess[dstxBit];
} else {
dstData[lineOffset+dstxOffset] &= ~bitAccess[dstxBit];
}
}
}
}
public static byte[] image_byte_data(BufferedImage image) {
WritableRaster raster = image.getRaster();
DataBufferByte buffer = (DataBufferByte) raster.getDataBuffer();
return buffer.getData();
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
@Override
protected byte[] imageToPlatformBytes(Image image, long format)
throws IOException {
String mimeType = null;
if (format == CF_PNG) {
mimeType = "image/png";
} else if (format == CF_JFIF) {
mimeType = "image/jpeg";
}
if (mimeType != null) {
return imageToStandardBytes(image, mimeType);
}
int width = 0;
int height = 0;
if (image instanceof ToolkitImage) {
ImageRepresentation ir = ((ToolkitImage)image).getImageRep();
ir.reconstruct(ImageObserver.ALLBITS);
width = ir.getWidth();
height = ir.getHeight();
} else {
width = image.getWidth(null);
height = image.getHeight(null);
}
// Fix for 4919639.
// Some Windows native applications (e.g. clipbrd.exe) do not handle
// 32-bpp DIBs correctly.
// As a workaround we switched to 24-bpp DIBs.
// MSDN prescribes that the bitmap array for a 24-bpp should consist of
// 3-byte triplets representing blue, green and red components of a
// pixel respectively. Additionally each scan line must be padded with
// zeroes to end on a LONG data-type boundary. LONG is always 32-bit.
// We render the given Image to a BufferedImage of type TYPE_3BYTE_BGR
// with non-default scanline stride and pass the resulting data buffer
// to the native code to fill the BITMAPINFO structure.
int mod = (width * 3) % 4;
int pad = mod > 0 ? 4 - mod : 0;
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
int[] bOffs = {2, 1, 0};
ColorModel colorModel =
new ComponentColorModel(cs, nBits, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
WritableRaster raster =
Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, width, height,
width * 3 + pad, 3, bOffs, null);
BufferedImage bimage = new BufferedImage(colorModel, raster, false, null);
// Some Windows native applications (e.g. clipbrd.exe) do not understand
// top-down DIBs.
// So we flip the image vertically and create a bottom-up DIB.
AffineTransform imageFlipTransform =
new AffineTransform(1, 0, 0, -1, 0, height);
Graphics2D g2d = bimage.createGraphics();
try {
g2d.drawImage(image, imageFlipTransform, null);
} finally {
g2d.dispose();
}
DataBufferByte buffer = (DataBufferByte)raster.getDataBuffer();
byte[] imageData = buffer.getData();
return imageDataToPlatformImageBytes(imageData, width, height, format);
}
/**
* Flips the image along the Y axis and converts BGRA to ABGR
*
* @param bgraBuf
* @param out
*/
public static void convertScreenShot(ByteBuffer bgraBuf, BufferedImage out){
WritableRaster wr = out.getRaster();
DataBufferByte db = (DataBufferByte) wr.getDataBuffer();
byte[] cpuArray = db.getData();
// copy native memory to java memory
bgraBuf.clear();
bgraBuf.get(cpuArray);
bgraBuf.clear();
int width = wr.getWidth();
int height = wr.getHeight();
// flip the components the way AWT likes them
// calcuate half of height such that all rows of the array are written to
// e.g. for odd heights, write 1 more scanline
int heightdiv2ceil = height % 2 == 1 ? (height / 2) + 1 : height / 2;
for (int y = 0; y < heightdiv2ceil; y++){
for (int x = 0; x < width; x++){
int inPtr = (y * width + x) * 4;
int outPtr = ((height-y-1) * width + x) * 4;
byte b1 = cpuArray[inPtr+0];
byte g1 = cpuArray[inPtr+1];
byte r1 = cpuArray[inPtr+2];
byte a1 = cpuArray[inPtr+3];
byte b2 = cpuArray[outPtr+0];
byte g2 = cpuArray[outPtr+1];
byte r2 = cpuArray[outPtr+2];
byte a2 = cpuArray[outPtr+3];
cpuArray[outPtr+0] = a1;
cpuArray[outPtr+1] = b1;
cpuArray[outPtr+2] = g1;
cpuArray[outPtr+3] = r1;
cpuArray[inPtr+0] = a2;
cpuArray[inPtr+1] = b2;
cpuArray[inPtr+2] = g2;
cpuArray[inPtr+3] = r2;
}
}
}
public static void convertScreenShot(ByteBuffer bgraBuf, BufferedImage out){
WritableRaster wr = out.getRaster();
DataBufferByte db = (DataBufferByte) wr.getDataBuffer();
byte[] cpuArray = db.getData();
// copy native memory to java memory
bgraBuf.clear();
bgraBuf.get(cpuArray);
bgraBuf.clear();
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) * 4;
int outPtr = ((height-y-1) * width + x) * 4;
byte b1 = cpuArray[inPtr+0];
byte g1 = cpuArray[inPtr+1];
byte r1 = cpuArray[inPtr+2];
byte a1 = cpuArray[inPtr+3];
byte b2 = cpuArray[outPtr+0];
byte g2 = cpuArray[outPtr+1];
byte r2 = cpuArray[outPtr+2];
byte a2 = cpuArray[outPtr+3];
cpuArray[outPtr+0] = a1;
cpuArray[outPtr+1] = b1;
cpuArray[outPtr+2] = g1;
cpuArray[outPtr+3] = r1;
cpuArray[inPtr+0] = a2;
cpuArray[inPtr+1] = b2;
cpuArray[inPtr+2] = g2;
cpuArray[inPtr+3] = r2;
}
}
}