Example usage for java.awt.image WritableRaster getMinY

List of usage examples for java.awt.image WritableRaster getMinY

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Introduction

In this page you can find the example usage for java.awt.image WritableRaster getMinY.

Prototype

public final int getMinY()

Source Link

Document

Returns the minimum valid Y coordinate of the Raster.

Usage

From source file:GraphicsUtil.java

protected static void divide_INT_PACK_Data(WritableRaster wr) {
    // System.out.println("Divide Int");

    SinglePixelPackedSampleModel sppsm;
    sppsm = (SinglePixelPackedSampleModel) wr.getSampleModel();

    final int width = wr.getWidth();

    final int scanStride = sppsm.getScanlineStride();
    DataBufferInt db = (DataBufferInt) wr.getDataBuffer();
    final int base = (db.getOffset() + sppsm.getOffset(wr.getMinX() - wr.getSampleModelTranslateX(),
            wr.getMinY() - wr.getSampleModelTranslateY()));
    int pixel, a, aFP;
    // Access the pixel data array
    final int pixels[] = db.getBankData()[0];
    for (int y = 0; y < wr.getHeight(); y++) {
        int sp = base + y * scanStride;
        final int end = sp + width;
        while (sp < end) {
            pixel = pixels[sp];//from  w  ww  .  j a va  2 s .  c  o m
            a = pixel >>> 24;
            if (a <= 0) {
                pixels[sp] = 0x00FFFFFF;
            } else if (a < 255) {
                aFP = (0x00FF0000 / a);
                pixels[sp] = ((a << 24) | (((((pixel & 0xFF0000) >> 16) * aFP) & 0xFF0000))
                        | (((((pixel & 0x00FF00) >> 8) * aFP) & 0xFF0000) >> 8)
                        | (((((pixel & 0x0000FF)) * aFP) & 0xFF0000) >> 16));
            }
            sp++;
        }
    }
}

From source file:GraphicsUtil.java

protected static void mult_INT_PACK_Data(WritableRaster wr) {
    // System.out.println("Multiply Int: " + wr);

    SinglePixelPackedSampleModel sppsm;
    sppsm = (SinglePixelPackedSampleModel) wr.getSampleModel();

    final int width = wr.getWidth();

    final int scanStride = sppsm.getScanlineStride();
    DataBufferInt db = (DataBufferInt) wr.getDataBuffer();
    final int base = (db.getOffset() + sppsm.getOffset(wr.getMinX() - wr.getSampleModelTranslateX(),
            wr.getMinY() - wr.getSampleModelTranslateY()));
    // Access the pixel data array
    final int pixels[] = db.getBankData()[0];
    for (int y = 0; y < wr.getHeight(); y++) {
        int sp = base + y * scanStride;
        final int end = sp + width;
        while (sp < end) {
            int pixel = pixels[sp];
            int a = pixel >>> 24;
            if ((a >= 0) && (a < 255)) {
                pixels[sp] = ((a << 24) | ((((pixel & 0xFF0000) * a) >> 8) & 0xFF0000)
                        | ((((pixel & 0x00FF00) * a) >> 8) & 0x00FF00)
                        | ((((pixel & 0x0000FF) * a) >> 8) & 0x0000FF));
            }//from w  w  w .  jav  a2  s . c o  m
            sp++;
        }
    }
}

From source file:GraphicsUtil.java

public static void divideAlpha(WritableRaster wr) {
    if (is_BYTE_COMP_Data(wr.getSampleModel()))
        divide_BYTE_COMP_Data(wr);
    else if (is_INT_PACK_Data(wr.getSampleModel(), true))
        divide_INT_PACK_Data(wr);
    else {/*ww w .j av a 2 s . co  m*/
        int x0, x1, y0, y1, a, b;
        float ialpha;
        int bands = wr.getNumBands();
        int[] pixel = null;

        x0 = wr.getMinX();
        x1 = x0 + wr.getWidth();
        y0 = wr.getMinY();
        y1 = y0 + wr.getHeight();
        for (int y = y0; y < y1; y++)
            for (int x = x0; x < x1; x++) {
                pixel = wr.getPixel(x, y, pixel);
                a = pixel[bands - 1];
                if ((a > 0) && (a < 255)) {
                    ialpha = 255 / (float) a;
                    for (b = 0; b < bands - 1; b++)
                        pixel[b] = (int) (pixel[b] * ialpha + 0.5f);
                    wr.setPixel(x, y, pixel);
                }
            }
    }
}

From source file:GraphicsUtil.java

protected static void divide_INT_PACK_Data(WritableRaster wr) {
    // System.out.println("Divide Int");

    SinglePixelPackedSampleModel sppsm;
    sppsm = (SinglePixelPackedSampleModel) wr.getSampleModel();

    final int width = wr.getWidth();

    final int scanStride = sppsm.getScanlineStride();
    DataBufferInt db = (DataBufferInt) wr.getDataBuffer();
    final int base = (db.getOffset() + sppsm.getOffset(wr.getMinX() - wr.getSampleModelTranslateX(),
            wr.getMinY() - wr.getSampleModelTranslateY()));

    // Access the pixel data array
    final int[] pixels = db.getBankData()[0];
    for (int y = 0; y < wr.getHeight(); y++) {
        int sp = base + y * scanStride;
        final int end = sp + width;
        while (sp < end) {
            int pixel = pixels[sp];
            int a = pixel >>> 24;
            if (a <= 0) {
                pixels[sp] = 0x00FFFFFF;
            } else if (a < 255) {
                int aFP = (0x00FF0000 / a);
                pixels[sp] = ((a << 24) | (((((pixel & 0xFF0000) >> 16) * aFP) & 0xFF0000))
                        | (((((pixel & 0x00FF00) >> 8) * aFP) & 0xFF0000) >> 8)
                        | (((((pixel & 0x0000FF)) * aFP) & 0xFF0000) >> 16));
            }//from  w  w  w  .  j a  v  a 2  s. c  o  m
            sp++;
        }
    }
}

From source file:GraphicsUtil.java

protected static void mult_INT_PACK_Data(WritableRaster wr) {
    // System.out.println("Multiply Int: " + wr);

    SinglePixelPackedSampleModel sppsm;
    sppsm = (SinglePixelPackedSampleModel) wr.getSampleModel();

    final int width = wr.getWidth();

    final int scanStride = sppsm.getScanlineStride();
    DataBufferInt db = (DataBufferInt) wr.getDataBuffer();
    final int base = (db.getOffset() + sppsm.getOffset(wr.getMinX() - wr.getSampleModelTranslateX(),
            wr.getMinY() - wr.getSampleModelTranslateY()));
    // Access the pixel data array
    final int[] pixels = db.getBankData()[0];
    for (int y = 0; y < wr.getHeight(); y++) {
        int sp = base + y * scanStride;
        final int end = sp + width;
        while (sp < end) {
            int pixel = pixels[sp];
            int a = pixel >>> 24;
            if ((a >= 0) && (a < 255)) { // this does NOT include a == 255 (0xff) !
                pixels[sp] = ((a << 24) | ((((pixel & 0xFF0000) * a) >> 8) & 0xFF0000)
                        | ((((pixel & 0x00FF00) * a) >> 8) & 0x00FF00)
                        | ((((pixel & 0x0000FF) * a) >> 8) & 0x0000FF));
            }//from  w w w  .ja v a  2 s.c  om
            sp++;
        }
    }
}

From source file:GraphicsUtil.java

public static void multiplyAlpha(WritableRaster wr) {
    if (is_BYTE_COMP_Data(wr.getSampleModel()))
        mult_BYTE_COMP_Data(wr);/*from   w w  w.ja  v  a 2 s  .c  o  m*/
    else if (is_INT_PACK_Data(wr.getSampleModel(), true))
        mult_INT_PACK_Data(wr);
    else {
        int[] pixel = null;
        int bands = wr.getNumBands();
        float norm = 1f / 255f;
        int x0, x1, y0, y1, a, b;
        float alpha;
        x0 = wr.getMinX();
        x1 = x0 + wr.getWidth();
        y0 = wr.getMinY();
        y1 = y0 + wr.getHeight();
        for (int y = y0; y < y1; y++)
            for (int x = x0; x < x1; x++) {
                pixel = wr.getPixel(x, y, pixel);
                a = pixel[bands - 1];
                if ((a >= 0) && (a < 255)) {
                    alpha = a * norm;
                    for (b = 0; b < bands - 1; b++)
                        pixel[b] = (int) (pixel[b] * alpha + 0.5f);
                    wr.setPixel(x, y, pixel);
                }
            }
    }
}

From source file:GraphicsUtil.java

public static void copyData_FALLBACK(Raster src, WritableRaster dst) {
    // System.out.println("Fallback copyData");

    int x0 = dst.getMinX();
    if (x0 < src.getMinX())
        x0 = src.getMinX();//from  w  w  w. java2 s . co  m

    int y0 = dst.getMinY();
    if (y0 < src.getMinY())
        y0 = src.getMinY();

    int x1 = dst.getMinX() + dst.getWidth() - 1;
    if (x1 > src.getMinX() + src.getWidth() - 1)
        x1 = src.getMinX() + src.getWidth() - 1;

    int y1 = dst.getMinY() + dst.getHeight() - 1;
    if (y1 > src.getMinY() + src.getHeight() - 1)
        y1 = src.getMinY() + src.getHeight() - 1;

    int width = x1 - x0 + 1;
    int[] data = null;

    for (int y = y0; y <= y1; y++) {
        data = src.getPixels(x0, y, width, 1, data);
        dst.setPixels(x0, y, width, 1, data);
    }
}

From source file:GraphicsUtil.java

protected static void mult_BYTE_COMP_Data(WritableRaster wr) {
    // System.out.println("Multiply Int: " + wr);

    ComponentSampleModel csm;//w  ww .ja  v  a 2  s.  c  o  m
    csm = (ComponentSampleModel) wr.getSampleModel();

    final int width = wr.getWidth();

    final int scanStride = csm.getScanlineStride();
    final int pixStride = csm.getPixelStride();
    final int[] bandOff = csm.getBandOffsets();

    DataBufferByte db = (DataBufferByte) wr.getDataBuffer();
    final int base = (db.getOffset() + csm.getOffset(wr.getMinX() - wr.getSampleModelTranslateX(),
            wr.getMinY() - wr.getSampleModelTranslateY()));

    int a = 0;
    int aOff = bandOff[bandOff.length - 1];
    int bands = bandOff.length - 1;
    int b, i;

    // Access the pixel data array
    final byte pixels[] = db.getBankData()[0];
    for (int y = 0; y < wr.getHeight(); y++) {
        int sp = base + y * scanStride;
        final int end = sp + width * pixStride;
        while (sp < end) {
            a = pixels[sp + aOff] & 0xFF;
            if (a != 0xFF)
                for (b = 0; b < bands; b++) {
                    i = sp + bandOff[b];
                    pixels[i] = (byte) (((pixels[i] & 0xFF) * a) >> 8);
                }
            sp += pixStride;
        }
    }
}

From source file:GraphicsUtil.java

protected static void divide_BYTE_COMP_Data(WritableRaster wr) {
    // System.out.println("Multiply Int: " + wr);

    ComponentSampleModel csm;//from   w  w  w. ja  v a  2 s. c  o  m
    csm = (ComponentSampleModel) wr.getSampleModel();

    final int width = wr.getWidth();

    final int scanStride = csm.getScanlineStride();
    final int pixStride = csm.getPixelStride();
    final int[] bandOff = csm.getBandOffsets();

    DataBufferByte db = (DataBufferByte) wr.getDataBuffer();
    final int base = (db.getOffset() + csm.getOffset(wr.getMinX() - wr.getSampleModelTranslateX(),
            wr.getMinY() - wr.getSampleModelTranslateY()));

    int a = 0;
    int aOff = bandOff[bandOff.length - 1];
    int bands = bandOff.length - 1;
    int b, i;
    // Access the pixel data array
    final byte pixels[] = db.getBankData()[0];
    for (int y = 0; y < wr.getHeight(); y++) {
        int sp = base + y * scanStride;
        final int end = sp + width * pixStride;
        while (sp < end) {
            a = pixels[sp + aOff] & 0xFF;
            if (a == 0) {
                for (b = 0; b < bands; b++)
                    pixels[sp + bandOff[b]] = (byte) 0xFF;
            } else if (a < 255) {
                int aFP = (0x00FF0000 / a);
                for (b = 0; b < bands; b++) {
                    i = sp + bandOff[b];
                    pixels[i] = (byte) (((pixels[i] & 0xFF) * aFP) >>> 16);
                }
            }
            sp += pixStride;
        }
    }
}

From source file:GraphicsUtil.java

/**
 * An internal optimized version of copyData designed to work on
 * Integer packed data with a SinglePixelPackedSampleModel.  Only
 * the region of overlap between src and dst is copied.
 *
 * Calls to this should be preflighted with is_INT_PACK_Data
 * on both src and dest (requireAlpha can be false).
 *
 * @param src The source of the data//from   w  ww  .ja  v  a2s. com
 * @param dst The destination for the data.
 */
public static void copyData_INT_PACK(Raster src, WritableRaster dst) {
    // System.out.println("Fast copyData");
    int x0 = dst.getMinX();
    if (x0 < src.getMinX())
        x0 = src.getMinX();

    int y0 = dst.getMinY();
    if (y0 < src.getMinY())
        y0 = src.getMinY();

    int x1 = dst.getMinX() + dst.getWidth() - 1;
    if (x1 > src.getMinX() + src.getWidth() - 1)
        x1 = src.getMinX() + src.getWidth() - 1;

    int y1 = dst.getMinY() + dst.getHeight() - 1;
    if (y1 > src.getMinY() + src.getHeight() - 1)
        y1 = src.getMinY() + src.getHeight() - 1;

    int width = x1 - x0 + 1;
    int height = y1 - y0 + 1;

    SinglePixelPackedSampleModel srcSPPSM;
    srcSPPSM = (SinglePixelPackedSampleModel) src.getSampleModel();

    final int srcScanStride = srcSPPSM.getScanlineStride();
    DataBufferInt srcDB = (DataBufferInt) src.getDataBuffer();
    final int[] srcPixels = srcDB.getBankData()[0];
    final int srcBase = (srcDB.getOffset()
            + srcSPPSM.getOffset(x0 - src.getSampleModelTranslateX(), y0 - src.getSampleModelTranslateY()));

    SinglePixelPackedSampleModel dstSPPSM;
    dstSPPSM = (SinglePixelPackedSampleModel) dst.getSampleModel();

    final int dstScanStride = dstSPPSM.getScanlineStride();
    DataBufferInt dstDB = (DataBufferInt) dst.getDataBuffer();
    final int[] dstPixels = dstDB.getBankData()[0];
    final int dstBase = (dstDB.getOffset()
            + dstSPPSM.getOffset(x0 - dst.getSampleModelTranslateX(), y0 - dst.getSampleModelTranslateY()));

    if ((srcScanStride == dstScanStride) && (srcScanStride == width)) {
        // System.out.println("VERY Fast copyData");

        System.arraycopy(srcPixels, srcBase, dstPixels, dstBase, width * height);
    } else if (width > 128) {
        int srcSP = srcBase;
        int dstSP = dstBase;
        for (int y = 0; y < height; y++) {
            System.arraycopy(srcPixels, srcSP, dstPixels, dstSP, width);
            srcSP += srcScanStride;
            dstSP += dstScanStride;
        }
    } else {
        for (int y = 0; y < height; y++) {
            int srcSP = srcBase + y * srcScanStride;
            int dstSP = dstBase + y * dstScanStride;
            for (int x = 0; x < width; x++)
                dstPixels[dstSP++] = srcPixels[srcSP++];
        }
    }
}