Examples with DataBufferInt java.awt.image.DataBufferInt used on opensource projects

Example 6 with DataBufferInt

use of java.awt.image.DataBufferInt in project android_frameworks_base by DirtyUnicorns.

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;
}

Example 7 with DataBufferInt

use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.

the class IncorrectAlphaConversionBicubic method makeUnmanagedBI.

private static BufferedImage makeUnmanagedBI(GraphicsConfiguration gc, int type) {
    BufferedImage img = gc.createCompatibleImage(SIZE, SIZE, type);
    Graphics2D g2d = img.createGraphics();
    g2d.setColor(RGB);
    g2d.fillRect(0, 0, SIZE, SIZE);
    g2d.dispose();
    final DataBuffer db = img.getRaster().getDataBuffer();
    if (db instanceof DataBufferInt) {
        ((DataBufferInt) db).getData();
    } else if (db instanceof DataBufferShort) {
        ((DataBufferShort) db).getData();
    } else if (db instanceof DataBufferByte) {
        ((DataBufferByte) db).getData();
    } else {
        try {
            img.setAccelerationPriority(0.0f);
        } catch (final Throwable ignored) {
        }
    }
    return img;
}

Example 8 with DataBufferInt

use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.

the class OpaqueImageToSurfaceBlitTest method main.

public static void main(String[] args) {
    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice gd = ge.getDefaultScreenDevice();
    GraphicsConfiguration gc = gd.getDefaultConfiguration();
    VolatileImage vi = gc.createCompatibleVolatileImage(16, 16);
    vi.validate(gc);
    BufferedImage bi = new BufferedImage(2, 2, BufferedImage.TYPE_INT_RGB);
    int[] data = ((DataBufferInt) bi.getRaster().getDataBuffer()).getData();
    data[0] = 0x0000007f;
    data[1] = 0x0000007f;
    data[2] = 0xff00007f;
    data[3] = 0xff00007f;
    Graphics2D g = vi.createGraphics();
    g.setComposite(AlphaComposite.SrcOver.derive(0.999f));
    g.drawImage(bi, 0, 0, null);
    bi = vi.getSnapshot();
    if (bi.getRGB(0, 0) != bi.getRGB(1, 1)) {
        throw new RuntimeException("Test FAILED: color at 0x0 =" + Integer.toHexString(bi.getRGB(0, 0)) + " differs from 1x1 =" + Integer.toHexString(bi.getRGB(1, 1)));
    }
    System.out.println("Test PASSED.");
}

Example 9 with DataBufferInt

use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.

the class UnmanagedDrawImagePerformance method makeUnmanagedBI.

private static BufferedImage makeUnmanagedBI(final int type) {
    final BufferedImage img = new BufferedImage(SIZE, SIZE, type);
    final DataBuffer db = img.getRaster().getDataBuffer();
    if (db instanceof DataBufferInt) {
        ((DataBufferInt) db).getData();
    } else if (db instanceof DataBufferShort) {
        ((DataBufferShort) db).getData();
    } else if (db instanceof DataBufferByte) {
        ((DataBufferByte) db).getData();
    } else {
        try {
            img.setAccelerationPriority(0.0f);
        } catch (final Throwable ignored) {
        }
    }
    return img;
}

Example 10 with DataBufferInt

use of java.awt.image.DataBufferInt in project jdk8u_jdk by JetBrains.

the class IncorrectUnmanagedImageSourceOffset method makeUnmanagedBI.

private static BufferedImage makeUnmanagedBI(final int type) {
    final BufferedImage bi = new BufferedImage(511, 255, type);
    final DataBuffer db = bi.getRaster().getDataBuffer();
    if (db instanceof DataBufferInt) {
        ((DataBufferInt) db).getData();
    } else if (db instanceof DataBufferShort) {
        ((DataBufferShort) db).getData();
    } else if (db instanceof DataBufferByte) {
        ((DataBufferByte) db).getData();
    } else {
        try {
            bi.setAccelerationPriority(0.0f);
        } catch (final Throwable ignored) {
        }
    }
    return bi;
}