use of java.awt.image.DataBufferInt in project android_frameworks_base by AOSPA.
the class ShadowPainter method createDropShadow.
/**
* Creates a drop shadow of a given image and returns a new image which shows the input image on
* top of its drop shadow.
* <p/>
* <b>NOTE: If the shape is rectangular and opaque, consider using {@link
* #drawRectangleShadow(Graphics2D, int, int, int, int)} instead.</b>
*
* @param source the source image to be shadowed
* @param shadowSize the size of the shadow in pixels
* @param shadowOpacity the opacity of the shadow, with 0=transparent and 1=opaque
* @param shadowRgb the RGB int to use for the shadow color
*
* @return a new image with the source image on top of its shadow when shadowSize > 0 or the
* source image otherwise
*/
// Imported code
@SuppressWarnings({ "SuspiciousNameCombination", "UnnecessaryLocalVariable" })
public static BufferedImage createDropShadow(BufferedImage source, int shadowSize, float shadowOpacity, int shadowRgb) {
if (shadowSize <= 0) {
return source;
}
// This code is based on
// http://www.jroller.com/gfx/entry/non_rectangular_shadow
BufferedImage image;
int width = source.getWidth();
int height = source.getHeight();
image = new BufferedImage(width + SHADOW_SIZE, height + SHADOW_SIZE, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = image.createGraphics();
g2.drawImage(image, shadowSize, shadowSize, null);
int dstWidth = image.getWidth();
int dstHeight = image.getHeight();
int left = (shadowSize - 1) >> 1;
int right = shadowSize - left;
int xStart = left;
int xStop = dstWidth - right;
int yStart = left;
int yStop = dstHeight - right;
shadowRgb &= 0x00FFFFFF;
int[] aHistory = new int[shadowSize];
int historyIdx;
int aSum;
int[] dataBuffer = ((DataBufferInt) image.getRaster().getDataBuffer()).getData();
int lastPixelOffset = right * dstWidth;
float sumDivider = shadowOpacity / shadowSize;
// horizontal pass
for (int y = 0, bufferOffset = 0; y < dstHeight; y++, bufferOffset = y * dstWidth) {
aSum = 0;
historyIdx = 0;
for (int x = 0; x < shadowSize; x++, bufferOffset++) {
int a = dataBuffer[bufferOffset] >>> 24;
aHistory[x] = a;
aSum += a;
}
bufferOffset -= right;
for (int x = xStart; x < xStop; x++, bufferOffset++) {
int a = (int) (aSum * sumDivider);
dataBuffer[bufferOffset] = a << 24 | shadowRgb;
// subtract the oldest pixel from the sum
aSum -= aHistory[historyIdx];
// get the latest pixel
a = dataBuffer[bufferOffset + right] >>> 24;
aHistory[historyIdx] = a;
aSum += a;
if (++historyIdx >= shadowSize) {
historyIdx -= shadowSize;
}
}
}
// vertical pass
for (int x = 0, bufferOffset = 0; x < dstWidth; x++, bufferOffset = x) {
aSum = 0;
historyIdx = 0;
for (int y = 0; y < shadowSize; y++, bufferOffset += dstWidth) {
int a = dataBuffer[bufferOffset] >>> 24;
aHistory[y] = a;
aSum += a;
}
bufferOffset -= lastPixelOffset;
for (int y = yStart; y < yStop; y++, bufferOffset += dstWidth) {
int a = (int) (aSum * sumDivider);
dataBuffer[bufferOffset] = a << 24 | shadowRgb;
// subtract the oldest pixel from the sum
aSum -= aHistory[historyIdx];
// get the latest pixel
a = dataBuffer[bufferOffset + lastPixelOffset] >>> 24;
aHistory[historyIdx] = a;
aSum += a;
if (++historyIdx >= shadowSize) {
historyIdx -= shadowSize;
}
}
}
g2.drawImage(source, null, 0, 0);
g2.dispose();
return image;
}
use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.
the class Robot method createScreenCapture.
/**
* Creates an image containing pixels read from the screen. This image does
* not include the mouse cursor.
* @param screenRect Rect to capture in screen coordinates
* @return The captured image
* @throws IllegalArgumentException if <code>screenRect</code> width and height are not greater than zero
* @throws SecurityException if <code>readDisplayPixels</code> permission is not granted
* @see SecurityManager#checkPermission
* @see AWTPermission
*/
public synchronized BufferedImage createScreenCapture(Rectangle screenRect) {
checkScreenCaptureAllowed();
checkValidRect(screenRect);
BufferedImage image;
DataBufferInt buffer;
WritableRaster raster;
if (screenCapCM == null) {
/*
* Fix for 4285201
* Create a DirectColorModel equivalent to the default RGB ColorModel,
* except with no Alpha component.
*/
screenCapCM = new DirectColorModel(24, /* red mask */
0x00FF0000, /* green mask */
0x0000FF00, /* blue mask */
0x000000FF);
}
// need to sync the toolkit prior to grabbing the pixels since in some
// cases rendering to the screen may be delayed
Toolkit.getDefaultToolkit().sync();
int[] pixels;
int[] bandmasks = new int[3];
Rectangle devScreenRect = screenRect.getBounds();
// devScreenRect is IN/OUT param
pixels = peer.getRGBPixels(devScreenRect);
buffer = new DataBufferInt(pixels, pixels.length);
bandmasks[0] = screenCapCM.getRedMask();
bandmasks[1] = screenCapCM.getGreenMask();
bandmasks[2] = screenCapCM.getBlueMask();
raster = Raster.createPackedRaster(buffer, devScreenRect.width, devScreenRect.height, devScreenRect.width, bandmasks, null);
SunWritableRaster.makeTrackable(buffer);
image = new BufferedImage(screenCapCM, raster, false, null);
return image;
}
use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.
the class ImageUtil method setPackedBinaryData.
/**
* Sets the supplied <code>Raster</code>'s data from an array
* of packed binary data of the form returned by
* <code>getPackedBinaryData()</code>.
*
* @throws IllegalArgumentException if <code>isBinary()</code> returns
* <code>false</code> with the <code>SampleModel</code> of the
* supplied <code>Raster</code> as argument.
*/
public static void setPackedBinaryData(byte[] binaryDataArray, WritableRaster raster, Rectangle rect) {
SampleModel sm = raster.getSampleModel();
if (!isBinary(sm)) {
throw new IllegalArgumentException(I18N.getString("ImageUtil0"));
}
int rectX = rect.x;
int rectY = rect.y;
int rectWidth = rect.width;
int rectHeight = rect.height;
DataBuffer dataBuffer = raster.getDataBuffer();
int dx = rectX - raster.getSampleModelTranslateX();
int dy = rectY - raster.getSampleModelTranslateY();
MultiPixelPackedSampleModel mpp = (MultiPixelPackedSampleModel) sm;
int lineStride = mpp.getScanlineStride();
int eltOffset = dataBuffer.getOffset() + mpp.getOffset(dx, dy);
int bitOffset = mpp.getBitOffset(dx);
int b = 0;
if (bitOffset == 0) {
if (dataBuffer instanceof DataBufferByte) {
byte[] data = ((DataBufferByte) dataBuffer).getData();
if (data == binaryDataArray) {
// Optimal case: simply return.
return;
}
int stride = (rectWidth + 7) / 8;
int offset = 0;
for (int y = 0; y < rectHeight; y++) {
System.arraycopy(binaryDataArray, offset, data, eltOffset, stride);
offset += stride;
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferShort || dataBuffer instanceof DataBufferUShort) {
short[] data = dataBuffer instanceof DataBufferShort ? ((DataBufferShort) dataBuffer).getData() : ((DataBufferUShort) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int xRemaining = rectWidth;
int i = eltOffset;
while (xRemaining > 8) {
data[i++] = (short) (((binaryDataArray[b++] & 0xFF) << 8) | (binaryDataArray[b++] & 0xFF));
xRemaining -= 16;
}
if (xRemaining > 0) {
data[i++] = (short) ((binaryDataArray[b++] & 0xFF) << 8);
}
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferInt) {
int[] data = ((DataBufferInt) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int xRemaining = rectWidth;
int i = eltOffset;
while (xRemaining > 24) {
data[i++] = (int) (((binaryDataArray[b++] & 0xFF) << 24) | ((binaryDataArray[b++] & 0xFF) << 16) | ((binaryDataArray[b++] & 0xFF) << 8) | (binaryDataArray[b++] & 0xFF));
xRemaining -= 32;
}
int shift = 24;
while (xRemaining > 0) {
data[i] |= (int) ((binaryDataArray[b++] & 0xFF) << shift);
shift -= 8;
xRemaining -= 8;
}
eltOffset += lineStride;
}
}
} else {
// bitOffset != 0
int stride = (rectWidth + 7) / 8;
int offset = 0;
if (dataBuffer instanceof DataBufferByte) {
byte[] data = ((DataBufferByte) dataBuffer).getData();
if ((bitOffset & 7) == 0) {
for (int y = 0; y < rectHeight; y++) {
System.arraycopy(binaryDataArray, offset, data, eltOffset, stride);
offset += stride;
eltOffset += lineStride;
}
} else {
// bitOffset % 8 != 0
int rightShift = bitOffset & 7;
int leftShift = 8 - rightShift;
int leftShift8 = 8 + leftShift;
int mask = (byte) (255 << leftShift);
int mask1 = (byte) ~mask;
for (int y = 0; y < rectHeight; y++) {
int i = eltOffset;
int xRemaining = rectWidth;
while (xRemaining > 0) {
byte datum = binaryDataArray[b++];
if (xRemaining > leftShift8) {
// when all the bits in this BYTE will be set
// into the data buffer.
data[i] = (byte) ((data[i] & mask) | ((datum & 0xFF) >>> rightShift));
data[++i] = (byte) ((datum & 0xFF) << leftShift);
} else if (xRemaining > leftShift) {
// All the "leftShift" high bits will be set
// into the data buffer. But not all the
// "rightShift" low bits will be set.
data[i] = (byte) ((data[i] & mask) | ((datum & 0xFF) >>> rightShift));
i++;
data[i] = (byte) ((data[i] & mask1) | ((datum & 0xFF) << leftShift));
} else {
// Less than "leftShift" high bits will be set.
int remainMask = (1 << leftShift - xRemaining) - 1;
data[i] = (byte) ((data[i] & (mask | remainMask)) | (datum & 0xFF) >>> rightShift & ~remainMask);
}
xRemaining -= 8;
}
eltOffset += lineStride;
}
}
} else if (dataBuffer instanceof DataBufferShort || dataBuffer instanceof DataBufferUShort) {
short[] data = dataBuffer instanceof DataBufferShort ? ((DataBufferShort) dataBuffer).getData() : ((DataBufferUShort) dataBuffer).getData();
int rightShift = bitOffset & 7;
int leftShift = 8 - rightShift;
int leftShift16 = 16 + leftShift;
int mask = (short) (~(255 << leftShift));
int mask1 = (short) (65535 << leftShift);
int mask2 = (short) ~mask1;
for (int y = 0; y < rectHeight; y++) {
int bOffset = bitOffset;
int xRemaining = rectWidth;
for (int x = 0; x < rectWidth; x += 8, bOffset += 8, xRemaining -= 8) {
int i = eltOffset + (bOffset >> 4);
int mod = bOffset & 15;
int datum = binaryDataArray[b++] & 0xFF;
if (mod <= 8) {
// This BYTE is set into one SHORT
if (xRemaining < 8) {
// Mask the bits to be set.
datum &= 255 << 8 - xRemaining;
}
data[i] = (short) ((data[i] & mask) | (datum << leftShift));
} else if (xRemaining > leftShift16) {
// This BYTE will be set into two SHORTs
data[i] = (short) ((data[i] & mask1) | ((datum >>> rightShift) & 0xFFFF));
data[++i] = (short) ((datum << leftShift) & 0xFFFF);
} else if (xRemaining > leftShift) {
// This BYTE will be set into two SHORTs;
// But not all the low bits will be set into SHORT
data[i] = (short) ((data[i] & mask1) | ((datum >>> rightShift) & 0xFFFF));
i++;
data[i] = (short) ((data[i] & mask2) | ((datum << leftShift) & 0xFFFF));
} else {
// Only some of the high bits will be set into
// SHORTs
int remainMask = (1 << leftShift - xRemaining) - 1;
data[i] = (short) ((data[i] & (mask1 | remainMask)) | ((datum >>> rightShift) & 0xFFFF & ~remainMask));
}
}
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferInt) {
int[] data = ((DataBufferInt) dataBuffer).getData();
int rightShift = bitOffset & 7;
int leftShift = 8 - rightShift;
int leftShift32 = 32 + leftShift;
int mask = 0xFFFFFFFF << leftShift;
int mask1 = ~mask;
for (int y = 0; y < rectHeight; y++) {
int bOffset = bitOffset;
int xRemaining = rectWidth;
for (int x = 0; x < rectWidth; x += 8, bOffset += 8, xRemaining -= 8) {
int i = eltOffset + (bOffset >> 5);
int mod = bOffset & 31;
int datum = binaryDataArray[b++] & 0xFF;
if (mod <= 24) {
// This BYTE is set into one INT
int shift = 24 - mod;
if (xRemaining < 8) {
// Mask the bits to be set.
datum &= 255 << 8 - xRemaining;
}
data[i] = (data[i] & (~(255 << shift))) | (datum << shift);
} else if (xRemaining > leftShift32) {
// All the bits of this BYTE will be set into two INTs
data[i] = (data[i] & mask) | (datum >>> rightShift);
data[++i] = datum << leftShift;
} else if (xRemaining > leftShift) {
// This BYTE will be set into two INTs;
// But not all the low bits will be set into INT
data[i] = (data[i] & mask) | (datum >>> rightShift);
i++;
data[i] = (data[i] & mask1) | (datum << leftShift);
} else {
// Only some of the high bits will be set into INT
int remainMask = (1 << leftShift - xRemaining) - 1;
data[i] = (data[i] & (mask | remainMask)) | (datum >>> rightShift & ~remainMask);
}
}
eltOffset += lineStride;
}
}
}
}
use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.
the class ImageUtil method getPackedBinaryData.
/**
* For the case of binary data (<code>isBinary()</code> returns
* <code>true</code>), return the binary data as a packed byte array.
* The data will be packed as eight bits per byte with no bit offset,
* i.e., the first bit in each image line will be the left-most of the
* first byte of the line. The line stride in bytes will be
* <code>(int)((getWidth()+7)/8)</code>. The length of the returned
* array will be the line stride multiplied by <code>getHeight()</code>
*
* @return the binary data as a packed array of bytes with zero offset
* of <code>null</code> if the data are not binary.
* @throws IllegalArgumentException if <code>isBinary()</code> returns
* <code>false</code> with the <code>SampleModel</code> of the
* supplied <code>Raster</code> as argument.
*/
public static byte[] getPackedBinaryData(Raster raster, Rectangle rect) {
SampleModel sm = raster.getSampleModel();
if (!isBinary(sm)) {
throw new IllegalArgumentException(I18N.getString("ImageUtil0"));
}
int rectX = rect.x;
int rectY = rect.y;
int rectWidth = rect.width;
int rectHeight = rect.height;
DataBuffer dataBuffer = raster.getDataBuffer();
int dx = rectX - raster.getSampleModelTranslateX();
int dy = rectY - raster.getSampleModelTranslateY();
MultiPixelPackedSampleModel mpp = (MultiPixelPackedSampleModel) sm;
int lineStride = mpp.getScanlineStride();
int eltOffset = dataBuffer.getOffset() + mpp.getOffset(dx, dy);
int bitOffset = mpp.getBitOffset(dx);
int numBytesPerRow = (rectWidth + 7) / 8;
if (dataBuffer instanceof DataBufferByte && eltOffset == 0 && bitOffset == 0 && numBytesPerRow == lineStride && ((DataBufferByte) dataBuffer).getData().length == numBytesPerRow * rectHeight) {
return ((DataBufferByte) dataBuffer).getData();
}
byte[] binaryDataArray = new byte[numBytesPerRow * rectHeight];
int b = 0;
if (bitOffset == 0) {
if (dataBuffer instanceof DataBufferByte) {
byte[] data = ((DataBufferByte) dataBuffer).getData();
int stride = numBytesPerRow;
int offset = 0;
for (int y = 0; y < rectHeight; y++) {
System.arraycopy(data, eltOffset, binaryDataArray, offset, stride);
offset += stride;
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferShort || dataBuffer instanceof DataBufferUShort) {
short[] data = dataBuffer instanceof DataBufferShort ? ((DataBufferShort) dataBuffer).getData() : ((DataBufferUShort) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int xRemaining = rectWidth;
int i = eltOffset;
while (xRemaining > 8) {
short datum = data[i++];
binaryDataArray[b++] = (byte) ((datum >>> 8) & 0xFF);
binaryDataArray[b++] = (byte) (datum & 0xFF);
xRemaining -= 16;
}
if (xRemaining > 0) {
binaryDataArray[b++] = (byte) ((data[i] >>> 8) & 0XFF);
}
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferInt) {
int[] data = ((DataBufferInt) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int xRemaining = rectWidth;
int i = eltOffset;
while (xRemaining > 24) {
int datum = data[i++];
binaryDataArray[b++] = (byte) ((datum >>> 24) & 0xFF);
binaryDataArray[b++] = (byte) ((datum >>> 16) & 0xFF);
binaryDataArray[b++] = (byte) ((datum >>> 8) & 0xFF);
binaryDataArray[b++] = (byte) (datum & 0xFF);
xRemaining -= 32;
}
int shift = 24;
while (xRemaining > 0) {
binaryDataArray[b++] = (byte) ((data[i] >>> shift) & 0xFF);
shift -= 8;
xRemaining -= 8;
}
eltOffset += lineStride;
}
}
} else {
// bitOffset != 0
if (dataBuffer instanceof DataBufferByte) {
byte[] data = ((DataBufferByte) dataBuffer).getData();
if ((bitOffset & 7) == 0) {
int stride = numBytesPerRow;
int offset = 0;
for (int y = 0; y < rectHeight; y++) {
System.arraycopy(data, eltOffset, binaryDataArray, offset, stride);
offset += stride;
eltOffset += lineStride;
}
} else {
// bitOffset % 8 != 0
int leftShift = bitOffset & 7;
int rightShift = 8 - leftShift;
for (int y = 0; y < rectHeight; y++) {
int i = eltOffset;
int xRemaining = rectWidth;
while (xRemaining > 0) {
if (xRemaining > rightShift) {
binaryDataArray[b++] = (byte) (((data[i++] & 0xFF) << leftShift) | ((data[i] & 0xFF) >>> rightShift));
} else {
binaryDataArray[b++] = (byte) ((data[i] & 0xFF) << leftShift);
}
xRemaining -= 8;
}
eltOffset += lineStride;
}
}
} else if (dataBuffer instanceof DataBufferShort || dataBuffer instanceof DataBufferUShort) {
short[] data = dataBuffer instanceof DataBufferShort ? ((DataBufferShort) dataBuffer).getData() : ((DataBufferUShort) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int bOffset = bitOffset;
for (int x = 0; x < rectWidth; x += 8, bOffset += 8) {
int i = eltOffset + bOffset / 16;
int mod = bOffset % 16;
int left = data[i] & 0xFFFF;
if (mod <= 8) {
binaryDataArray[b++] = (byte) (left >>> (8 - mod));
} else {
int delta = mod - 8;
int right = data[i + 1] & 0xFFFF;
binaryDataArray[b++] = (byte) ((left << delta) | (right >>> (16 - delta)));
}
}
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferInt) {
int[] data = ((DataBufferInt) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int bOffset = bitOffset;
for (int x = 0; x < rectWidth; x += 8, bOffset += 8) {
int i = eltOffset + bOffset / 32;
int mod = bOffset % 32;
int left = data[i];
if (mod <= 24) {
binaryDataArray[b++] = (byte) (left >>> (24 - mod));
} else {
int delta = mod - 24;
int right = data[i + 1];
binaryDataArray[b++] = (byte) ((left << delta) | (right >>> (32 - delta)));
}
}
eltOffset += lineStride;
}
}
}
return binaryDataArray;
}
use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.
the class ImageUtil method setUnpackedBinaryData.
/**
* Copies data into the packed array of the <code>Raster</code>
* from an array of unpacked data of the form returned by
* <code>getUnpackedBinaryData()</code>.
*
* <p> If the data are binary, then the target bit will be set if
* and only if the corresponding byte is non-zero.
*
* @throws IllegalArgumentException if <code>isBinary()</code> returns
* <code>false</code> with the <code>SampleModel</code> of the
* supplied <code>Raster</code> as argument.
*/
public static void setUnpackedBinaryData(byte[] bdata, WritableRaster raster, Rectangle rect) {
SampleModel sm = raster.getSampleModel();
if (!isBinary(sm)) {
throw new IllegalArgumentException(I18N.getString("ImageUtil0"));
}
int rectX = rect.x;
int rectY = rect.y;
int rectWidth = rect.width;
int rectHeight = rect.height;
DataBuffer dataBuffer = raster.getDataBuffer();
int dx = rectX - raster.getSampleModelTranslateX();
int dy = rectY - raster.getSampleModelTranslateY();
MultiPixelPackedSampleModel mpp = (MultiPixelPackedSampleModel) sm;
int lineStride = mpp.getScanlineStride();
int eltOffset = dataBuffer.getOffset() + mpp.getOffset(dx, dy);
int bitOffset = mpp.getBitOffset(dx);
int k = 0;
if (dataBuffer instanceof DataBufferByte) {
byte[] data = ((DataBufferByte) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int bOffset = eltOffset * 8 + bitOffset;
for (int x = 0; x < rectWidth; x++) {
if (bdata[k++] != (byte) 0) {
data[bOffset / 8] |= (byte) (0x00000001 << (7 - bOffset & 7));
}
bOffset++;
}
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferShort || dataBuffer instanceof DataBufferUShort) {
short[] data = dataBuffer instanceof DataBufferShort ? ((DataBufferShort) dataBuffer).getData() : ((DataBufferUShort) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int bOffset = eltOffset * 16 + bitOffset;
for (int x = 0; x < rectWidth; x++) {
if (bdata[k++] != (byte) 0) {
data[bOffset / 16] |= (short) (0x00000001 << (15 - bOffset % 16));
}
bOffset++;
}
eltOffset += lineStride;
}
} else if (dataBuffer instanceof DataBufferInt) {
int[] data = ((DataBufferInt) dataBuffer).getData();
for (int y = 0; y < rectHeight; y++) {
int bOffset = eltOffset * 32 + bitOffset;
for (int x = 0; x < rectWidth; x++) {
if (bdata[k++] != (byte) 0) {
data[bOffset / 32] |= (int) (0x00000001 << (31 - bOffset % 32));
}
bOffset++;
}
eltOffset += lineStride;
}
}
}
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