Examples of com.lightcrafts.mediax.jai.iterator.RandomIter

Package com.lightcrafts.mediax.jai.iterator

Examples of com.lightcrafts.mediax.jai.iterator.RandomIter

com.lightcrafts.mediax.jai.iterator.RandomIter
An iterator that allows random read-only access to any sample within its bounding rectangle. This flexibility will generally exact a corresponding price in speed and setup overhead.
The iterator is initialized with a particular rectangle as its bounds, which it is illegal to exceed. This initialization takes place in a factory method and is not a part of the iterator interface itself.
The getSample(), getSampleFloat(), and getSampleDouble() methods are provided to allow read-only access to the source data. The getPixel() methods allow retrieval of all bands simultaneously.
An instance of RandomIter may be obtained by means of the RandomIterFactory.create() method, which returns an opaque object implementing this interface. @see WritableRandomIter @see RandomIterFactory

            d.copyDataToRaster();
        }
    }


    private void computeRectByte(PlanarImage src, RasterAccessor dst) {
        RandomIter iter = RandomIterFactory.create(src, src.getBounds());


        int minX = src.getMinX();
        int maxX = src.getMaxX();
        int minY = src.getMinY();
        int maxY = src.getMaxY();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        byte[][] data = dst.getByteDataArrays();


        float[] warpData = new float[2 * dstWidth];


        int lineOffset = 0;


  byte[] backgroundByte = new byte[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundByte[i] = (byte)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1,
                          warpData);
            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                /*
                 * The warp object subtract 0.5 from backward mapped
                 * source coordinate. Need to do a round to get the
                 * nearest neighbor. This is different from the standard
                 * nearest implementation.
                 */
                int sx = round(warpData[count++]);
                int sy = round(warpData[count++]);


                if (sx < minX || sx >= maxX || sy < minY || sy >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundByte[b];
                        }
                    }
                } else {
                    for (int b = 0; b < dstBands; b++) {
                        data[b][pixelOffset+bandOffsets[b]] =
                            (byte)(iter.getSample(sx, sy, b) & 0xFF);
                    }
                }


                pixelOffset += pixelStride;
            }

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            }
        }
    }


    private void computeRectUShort(PlanarImage src, RasterAccessor dst) {
        RandomIter iter = RandomIterFactory.create(src, src.getBounds());


        int minX = src.getMinX();
        int maxX = src.getMaxX();
        int minY = src.getMinY();
        int maxY = src.getMaxY();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        short[][] data = dst.getShortDataArrays();


        float[] warpData = new float[2 * dstWidth];


        int lineOffset = 0;


  short[] backgroundUShort = new short[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundUShort[i] = (short)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1,
                          warpData);
            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                /*
                 * The warp object subtract 0.5 from backward mapped
                 * source coordinate. Need to do a round to get the
                 * nearest neighbor. This is different from the standard
                 * nearest implementation.
                 */
                int sx = round(warpData[count++]);
                int sy = round(warpData[count++]);


                if (sx < minX || sx >= maxX || sy < minY || sy >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundUShort[b];
                        }
                    }
                } else {
                    for (int b = 0; b < dstBands; b++) {
                        data[b][pixelOffset+bandOffsets[b]] =
                            (short)(iter.getSample(sx, sy, b) & 0xFFFF);
                    }
                }


                pixelOffset += pixelStride;
            }

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            }
        }
    }


    private void computeRectShort(PlanarImage src, RasterAccessor dst) {
        RandomIter iter = RandomIterFactory.create(src, src.getBounds());


        int minX = src.getMinX();
        int maxX = src.getMaxX();
        int minY = src.getMinY();
        int maxY = src.getMaxY();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        short[][] data = dst.getShortDataArrays();


        float[] warpData = new float[2 * dstWidth];


        int lineOffset = 0;


        short[] backgroundShort = new short[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundShort[i] = (short)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1,
                          warpData);
            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                /*
                 * The warp object subtract 0.5 from backward mapped
                 * source coordinate. Need to do a round to get the
                 * nearest neighbor. This is different from the standard
                 * nearest implementation.
                 */
                int sx = round(warpData[count++]);
                int sy = round(warpData[count++]);


                if (sx < minX || sx >= maxX || sy < minY || sy >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundShort[b];
                        }
                    }
                } else {
                    for (int b = 0; b < dstBands; b++) {
                        data[b][pixelOffset+bandOffsets[b]] =
                            (short)iter.getSample(sx, sy, b);
                    }
                }


                pixelOffset += pixelStride;
            }

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            }
        }
    }


    private void computeRectInt(PlanarImage src, RasterAccessor dst) {
        RandomIter iter = RandomIterFactory.create(src, src.getBounds());


        int minX = src.getMinX();
        int maxX = src.getMaxX();
        int minY = src.getMinY();
        int maxY = src.getMaxY();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        int[][] data = dst.getIntDataArrays();


        float[] warpData = new float[2 * dstWidth];


        int lineOffset = 0;


  int[] backgroundInt = new int[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundInt[i] = (int)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1,
                          warpData);
            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                /*
                 * The warp object subtract 0.5 from backward mapped
                 * source coordinate. Need to do a round to get the
                 * nearest neighbor. This is different from the standard
                 * nearest implementation.
                 */
                int sx = round(warpData[count++]);
                int sy = round(warpData[count++]);


                if (sx < minX || sx >= maxX || sy < minY || sy >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundInt[b];
                        }
                    }
                } else {
                    for (int b = 0; b < dstBands; b++) {
                        data[b][pixelOffset+bandOffsets[b]] =
                            iter.getSample(sx, sy, b);
                    }
                }


                pixelOffset += pixelStride;
            }

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            }
        }
    }


    private void computeRectFloat(PlanarImage src, RasterAccessor dst) {
        RandomIter iter = RandomIterFactory.create(src, src.getBounds());


        int minX = src.getMinX();
        int maxX = src.getMaxX();
        int minY = src.getMinY();
        int maxY = src.getMaxY();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        float[][] data = dst.getFloatDataArrays();


        float[] warpData = new float[2 * dstWidth];


        int lineOffset = 0;


  float[] backgroundFloat = new float[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundFloat[i] = (float)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1,
                          warpData);
            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                /*
                 * The warp object subtract 0.5 from backward mapped
                 * source coordinate. Need to do a round to get the
                 * nearest neighbor. This is different from the standard
                 * nearest implementation.
                 */
                int sx = round(warpData[count++]);
                int sy = round(warpData[count++]);


                if (sx < minX || sx >= maxX || sy < minY || sy >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundFloat[b];
                        }
                    }
                } else {
                    for (int b = 0; b < dstBands; b++) {
                        data[b][pixelOffset+bandOffsets[b]] =
                            iter.getSampleFloat(sx, sy, b);
                    }
                }


                pixelOffset += pixelStride;
            }

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            }
        }
    }


    private void computeRectDouble(PlanarImage src, RasterAccessor dst) {
        RandomIter iter = RandomIterFactory.create(src, src.getBounds());


        int minX = src.getMinX();
        int maxX = src.getMaxX();
        int minY = src.getMinY();
        int maxY = src.getMaxY();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        double[][] data = dst.getDoubleDataArrays();


        float[] warpData = new float[2 * dstWidth];


        int lineOffset = 0;


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1,
                          warpData);
            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                /*
                 * The warp object subtract 0.5 from backward mapped
                 * source coordinate. Need to do a round to get the
                 * nearest neighbor. This is different from the standard
                 * nearest implementation.
                 */
                int sx = round(warpData[count++]);
                int sy = round(warpData[count++]);


                if (sx < minX || sx >= maxX || sy < minY || sy >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundValues[b];
                        }
                    }
                } else {
                    for (int b = 0; b < dstBands; b++) {
                        data[b][pixelOffset+bandOffsets[b]] =
                            iter.getSampleDouble(sx, sy, b);
                    }
                }


                pixelOffset += pixelStride;
            }

View Full Code Here

        } else {
            lpad = rpad = tpad = bpad = 0;
        }


        int minX, maxX, minY, maxY;
        RandomIter iter;
        if(extender != null) {
            minX = src.getMinX();
            maxX = src.getMaxX();
            minY = src.getMinY();
            maxY = src.getMaxY();
            Rectangle bounds = new Rectangle(src.getMinX() - lpad,
                                             src.getMinY() - tpad,
                                             src.getWidth() + lpad + rpad,
                                             src.getHeight() + tpad + bpad);
            iter = RandomIterFactory.create(src.getExtendedData(bounds,
                                                                extender),
                                            bounds);
        } else {
            minX = src.getMinX() + lpad;
            maxX = src.getMaxX() - rpad;
            minY = src.getMinY() + tpad;
            maxY = src.getMaxY() - bpad;
            iter = RandomIterFactory.create(src, src.getBounds());
        }


        int kwidth = interp.getWidth();
        int kheight = interp.getHeight();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        byte[][] data = dst.getByteDataArrays();


        int precH = 1 << interp.getSubsampleBitsH();
        int precV = 1 << interp.getSubsampleBitsV();


        float[] warpData = new float[2 * dstWidth];


        int[][] samples = new int[kheight][kwidth];


        int lineOffset = 0;


        byte[] backgroundByte = new byte[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundByte[i] = (byte)backgroundValues[i];


        if (ctable == null) {  // source does not have IndexColorModel
            for (int h = 0; h < dstHeight; h++) {
                int pixelOffset = lineOffset;
                lineOffset += lineStride;


                warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1, warpData);


                int count = 0;
                for (int w = 0; w < dstWidth; w++) {
                    float sx = warpData[count++];
                    float sy = warpData[count++];


                    int xint = floor(sx);
                    int yint = floor(sy);
                    int xfrac = (int)((sx - xint) * precH);
                    int yfrac = (int)((sy - yint) * precV);


                    if (xint < minX || xint >= maxX ||
                        yint < minY || yint >= maxY) {
                        /* Fill with a background color. */
                        if (setBackground) {
                            for (int b = 0; b < dstBands; b++) {
                                data[b][pixelOffset+bandOffsets[b]] =
                                    backgroundByte[b];
                            }
                        }
                    } else {
                        xint -= lpad;
                        yint -= tpad;


                        for (int b = 0; b < dstBands; b++) {
                            for (int j = 0; j < kheight; j++) {
                                for (int i = 0; i < kwidth; i++) {
                                    samples[j][i] = iter.getSample(
                                        xint+i, yint+j, b) & 0xFF;
                                }
                            }


                            data[b][pixelOffset+bandOffsets[b]] =
                                ImageUtil.clampByte(
                                interp.interpolate(samples, xfrac, yfrac));
                        }
                    }


                    pixelOffset += pixelStride;
                }
            }
        } else {  // source has IndexColorModel
            for (int h = 0; h < dstHeight; h++) {
                int pixelOffset = lineOffset;
                lineOffset += lineStride;


                warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1, warpData);


                int count = 0;
                for (int w = 0; w < dstWidth; w++) {
                    float sx = warpData[count++];
                    float sy = warpData[count++];


                    int xint = floor(sx);
                    int yint = floor(sy);
                    int xfrac = (int)((sx - xint) * precH);
                    int yfrac = (int)((sy - yint) * precV);


                    if (xint < minX || xint >= maxX ||
                        yint < minY || yint >= maxY) {
                        /* Fill with a background color. */
                        if (setBackground) {
                            for (int b = 0; b < dstBands; b++) {
                                data[b][pixelOffset+bandOffsets[b]] =
                                    backgroundByte[b];
                            }
                        }
                    } else {
                        xint -= lpad;
                        yint -= tpad;


                        for (int b = 0; b < dstBands; b++) {
                            byte[] t = ctable[b];


                            for (int j = 0; j < kheight; j++) {
                                for (int i = 0; i < kwidth; i++) {
                                    samples[j][i] = t[iter.getSample(
                                        xint+i, yint+j, 0) & 0xFF] & 0xFF;
                                }
                            }


                            data[b][pixelOffset+bandOffsets[b]] =

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        } else {
            lpad = rpad = tpad = bpad = 0;
        }


        int minX, maxX, minY, maxY;
        RandomIter iter;
        if(extender != null) {
            minX = src.getMinX();
            maxX = src.getMaxX();
            minY = src.getMinY();
            maxY = src.getMaxY();
            Rectangle bounds = new Rectangle(src.getMinX() - lpad,
                                             src.getMinY() - tpad,
                                             src.getWidth() + lpad + rpad,
                                             src.getHeight() + tpad + bpad);
            iter = RandomIterFactory.create(src.getExtendedData(bounds,
                                                                extender),
                                            bounds);
        } else {
            minX = src.getMinX() + lpad;
            maxX = src.getMaxX() - rpad;
            minY = src.getMinY() + tpad;
            maxY = src.getMaxY() - bpad;
            iter = RandomIterFactory.create(src, src.getBounds());
        }


        int kwidth = interp.getWidth();
        int kheight = interp.getHeight();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        short[][] data = dst.getShortDataArrays();


        int precH = 1 << interp.getSubsampleBitsH();
        int precV = 1 << interp.getSubsampleBitsV();


        float[] warpData = new float[2 * dstWidth];


        int[][] samples = new int[kheight][kwidth];


        int lineOffset = 0;


  short[] backgroundUShort = new short[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundUShort[i] = (short)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1, warpData);


            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                float sx = warpData[count++];
                float sy = warpData[count++];


                int xint = floor(sx);
                int yint = floor(sy);
                int xfrac = (int)((sx - xint) * precH);
                int yfrac = (int)((sy - yint) * precV);


                if (xint < minX || xint >= maxX ||
                    yint < minY || yint >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundUShort[b];
                        }
                    }
                } else {
                    xint -= lpad;
                    yint -= tpad;


                    for (int b = 0; b < dstBands; b++) {
                        for (int j = 0; j < kheight; j++) {
                            for (int i = 0; i < kwidth; i++) {
                                samples[j][i] = iter.getSample(
                                    xint+i, yint+j, b) & 0xFFFF;
                            }
                        }


                        data[b][pixelOffset+bandOffsets[b]] =

View Full Code Here

        } else {
            lpad = rpad = tpad = bpad = 0;
        }


        int minX, maxX, minY, maxY;
        RandomIter iter;
        if(extender != null) {
            minX = src.getMinX();
            maxX = src.getMaxX();
            minY = src.getMinY();
            maxY = src.getMaxY();
            Rectangle bounds = new Rectangle(src.getMinX() - lpad,
                                             src.getMinY() - tpad,
                                             src.getWidth() + lpad + rpad,
                                             src.getHeight() + tpad + bpad);
            iter = RandomIterFactory.create(src.getExtendedData(bounds,
                                                                extender),
                                            bounds);
        } else {
            minX = src.getMinX() + lpad;
            maxX = src.getMaxX() - rpad;
            minY = src.getMinY() + tpad;
            maxY = src.getMaxY() - bpad;
            iter = RandomIterFactory.create(src, src.getBounds());
        }


        int kwidth = interp.getWidth();
        int kheight = interp.getHeight();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        short[][] data = dst.getShortDataArrays();


        int precH = 1 << interp.getSubsampleBitsH();
        int precV = 1 << interp.getSubsampleBitsV();


        float[] warpData = new float[2 * dstWidth];


        int[][] samples = new int[kheight][kwidth];


        int lineOffset = 0;


        short[] backgroundShort = new short[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundShort[i] = (short)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1, warpData);


            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                float sx = warpData[count++];
                float sy = warpData[count++];


                int xint = floor(sx);
                int yint = floor(sy);
                int xfrac = (int)((sx - xint) * precH);
                int yfrac = (int)((sy - yint) * precV);


                if (xint < minX || xint >= maxX ||
                    yint < minY || yint >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundShort[b];
                        }
                    }
                } else {
                    xint -= lpad;
                    yint -= tpad;


                    for (int b = 0; b < dstBands; b++) {
                        for (int j = 0; j < kheight; j++) {
                            for (int i = 0; i < kwidth; i++) {
                                samples[j][i] = iter.getSample(
                                    xint+i, yint+j, b);
                            }
                        }


                        data[b][pixelOffset+bandOffsets[b]] =

View Full Code Here

        } else {
            lpad = rpad = tpad = bpad = 0;
        }


        int minX, maxX, minY, maxY;
        RandomIter iter;
        if(extender != null) {
            minX = src.getMinX();
            maxX = src.getMaxX();
            minY = src.getMinY();
            maxY = src.getMaxY();
            Rectangle bounds = new Rectangle(src.getMinX() - lpad,
                                             src.getMinY() - tpad,
                                             src.getWidth() + lpad + rpad,
                                             src.getHeight() + tpad + bpad);
            iter = RandomIterFactory.create(src.getExtendedData(bounds,
                                                                extender),
                                            bounds);
        } else {
            minX = src.getMinX() + lpad;
            maxX = src.getMaxX() - rpad;
            minY = src.getMinY() + tpad;
            maxY = src.getMaxY() - bpad;
            iter = RandomIterFactory.create(src, src.getBounds());
        }


        int kwidth = interp.getWidth();
        int kheight = interp.getHeight();


        int dstWidth = dst.getWidth();
        int dstHeight = dst.getHeight();
        int dstBands = dst.getNumBands();


        int lineStride = dst.getScanlineStride();
        int pixelStride = dst.getPixelStride();
        int[] bandOffsets = dst.getBandOffsets();
        int[][] data = dst.getIntDataArrays();


        int precH = 1 << interp.getSubsampleBitsH();
        int precV = 1 << interp.getSubsampleBitsV();


        float[] warpData = new float[2 * dstWidth];


        int[][] samples = new int[kheight][kwidth];


        int lineOffset = 0;


  int[] backgroundInt = new int[dstBands];
  for (int i = 0; i < dstBands; i++)
      backgroundInt[i] = (int)backgroundValues[i];


        for (int h = 0; h < dstHeight; h++) {
            int pixelOffset = lineOffset;
            lineOffset += lineStride;


            warp.warpRect(dst.getX(), dst.getY()+h, dstWidth, 1, warpData);


            int count = 0;
            for (int w = 0; w < dstWidth; w++) {
                float sx = warpData[count++];
                float sy = warpData[count++];


                int xint = floor(sx);
                int yint = floor(sy);
                int xfrac = (int)((sx - xint) * precH);
                int yfrac = (int)((sy - yint) * precV);


                if (xint < minX || xint >= maxX ||
                    yint < minY || yint >= maxY) {
                    /* Fill with a background color. */
                    if (setBackground) {
                        for (int b = 0; b < dstBands; b++) {
                            data[b][pixelOffset+bandOffsets[b]] =
                                backgroundInt[b];
                        }
                    }
                } else {
                    xint -= lpad;
                    yint -= tpad;


                    for (int b = 0; b < dstBands; b++) {
                        for (int j = 0; j < kheight; j++) {
                            for (int i = 0; i < kwidth; i++) {
                                samples[j][i] = iter.getSample(
                                    xint+i, yint+j, b);
                            }
                        }


                        data[b][pixelOffset+bandOffsets[b]] =

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com.lightcrafts.media.jai.opimage.WarpBilinearOpImage

com.lightcrafts.media.jai.opimage.WarpGeneralOpImage

com.lightcrafts.media.jai.opimage.WarpNearestOpImage

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