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

Example 6 with DataBufferFloat

use of java.awt.image.DataBufferFloat in project javacv by bytedeco.

the class GLCanvasFrame method showImage.

public void showImage(BufferedImage image) {
    if (image == null) {
        return;
    }
    this.color = null;
    this.width = image.getWidth();
    this.height = image.getHeight();
    DataBuffer buffer = image.getRaster().getDataBuffer();
    if (buffer instanceof DataBufferByte) {
        this.buffer = ByteBuffer.wrap(((DataBufferByte) buffer).getData());
        this.type = GL2.GL_UNSIGNED_BYTE;
    } else if (buffer instanceof DataBufferDouble) {
        this.buffer = DoubleBuffer.wrap(((DataBufferDouble) buffer).getData());
        this.type = GL2.GL_DOUBLE;
    } else if (buffer instanceof DataBufferFloat) {
        this.buffer = FloatBuffer.wrap(((DataBufferFloat) buffer).getData());
        this.type = GL2.GL_FLOAT;
    } else if (buffer instanceof DataBufferInt) {
        this.buffer = IntBuffer.wrap(((DataBufferInt) buffer).getData());
        this.type = GL2.GL_INT;
    } else if (buffer instanceof DataBufferShort) {
        this.buffer = ShortBuffer.wrap(((DataBufferShort) buffer).getData());
        this.type = GL2.GL_SHORT;
    } else if (buffer instanceof DataBufferUShort) {
        this.buffer = ShortBuffer.wrap(((DataBufferUShort) buffer).getData());
        this.type = GL2.GL_UNSIGNED_SHORT;
    } else {
        assert false;
    }
    switch(image.getSampleModel().getNumBands()) {
        case 1:
            this.format = GL2.GL_LUMINANCE;
            break;
        case 2:
            this.format = GL2.GL_RG;
            break;
        case 3:
            this.format = GL2.GL_RGB;
            break;
        case 4:
            this.format = GL2.GL_RGBA;
            break;
        default:
            assert false;
    }
    getGLCanvas().display();
}

Example 7 with DataBufferFloat

use of java.awt.image.DataBufferFloat in project imageio-ext by geosolutions-it.

the class TIFFDecompressor method decode.

/**
 * Decodes the input bit stream (located in the
 * <code>ImageInputStream</code> <code>stream</code>, at offset
 * <code>offset</code>, and continuing for <code>byteCount</code>
 * bytes) into the output <code>BufferedImage</code>
 * <code>image</code>.
 *
 * <p> The default implementation analyzes the destination image
 * to determine if it is suitable as the destination for the
 * <code>decodeRaw</code> method.  If not, a suitable image is
 * created.  Next, <code>decodeRaw</code> is called to perform the
 * actual decoding, and the results are copied into the
 * destination image if necessary.  Subsampling and offsetting are
 * performed automatically.
 *
 * <p> The precise responsibilities of this routine are as
 * follows.  The input bit stream is defined by the instance
 * variables <code>stream</code>, <code>offset</code>, and
 * <code>byteCount</code>.  These bits contain the data for the
 * region of the source image defined by <code>srcMinX</code>,
 * <code>srcMinY</code>, <code>srcWidth</code>, and
 * <code>srcHeight</code>.
 *
 * <p> The source data is required to be subsampling, starting at
 * the <code>sourceXOffset</code>th column and including
 * every <code>subsampleX</code>th pixel thereafter (and similarly
 * for <code>sourceYOffset</code> and
 * <code>subsampleY</code>).
 *
 * <p> Pixels are copied into the destination with an addition shift of
 * (<code>dstXOffset</code>, <code>dstYOffset</code>).  The complete
 * set of formulas relating the source and destination coordinate spaces
 * are:
 *
 * <pre>
 * dx = (sx - sourceXOffset)/subsampleX + dstXOffset;
 * dy = (sy - sourceYOffset)/subsampleY + dstYOffset;
 * </pre>
 *
 * Only source pixels such that <code>(sx - sourceXOffset) %
 * subsampleX == 0</code> and <code>(sy - sourceYOffset) %
 * subsampleY == 0</code> are copied.
 *
 * <p> The inverse mapping, from destination to source coordinates,
 * is one-to-one:
 *
 * <pre>
 * sx = (dx - dstXOffset)*subsampleX + sourceXOffset;
 * sy = (dy - dstYOffset)*subsampleY + sourceYOffset;
 * </pre>
 *
 * <p> The region of the destination image to be updated is given
 * by the instance variables <code>dstMinX</code>,
 * <code>dstMinY</code>, <code>dstWidth</code>, and
 * <code>dstHeight</code>.
 *
 * <p> It is possible that not all of the source data being read
 * will contribute to the destination image.  For example, the
 * destination offsets could be set such that some of the source
 * pixels land outside of the bounds of the image.  As a
 * convenience, the bounds of the active source region (that is,
 * the region of the strip or tile being read that actually
 * contributes to the destination image, taking clipping into
 * account) are available as <code>activeSrcMinX</code>,
 * <code>activeSrcMinY</code>, <code>activeSrcWidth</code> and
 * <code>activeSrcHeight</code>.  Thus, the source pixel at
 * (<code>activeSrcMinX</code>, <code>activeSrcMinY</code>) will
 * map to the destination pixel (<code>dstMinX</code>,
 * <code>dstMinY</code>).
 *
 * <p> The sequence of source bands given by
 * <code>sourceBands</code> are to be copied into the sequence of
 * bands in the destination given by
 * <code>destinationBands</code>.
 *
 * <p> Some standard tag information is provided the instance
 * variables <code>photometricInterpretation</code>,
 * <code>compression</code>, <code>samplesPerPixel</code>,
 * <code>bitsPerSample</code>, <code>sampleFormat</code>,
 * <code>extraSamples</code>, and <code>colorMap</code>.
 *
 * <p> In practice, unless there is a significant performance
 * advantage to be gained by overriding this routine, most users
 * will prefer to use the default implementation of this routine,
 * and instead override the <code>decodeRaw</code> and/or
 * <code>getRawImageType</code> methods.
 *
 * @exception IOException if an error occurs in
 * <code>decodeRaw</code>.
 */
public void decode() throws IOException {
    byte[] byteData = null;
    short[] shortData = null;
    int[] intData = null;
    float[] floatData = null;
    double[] doubleData = null;
    int dstOffset = 0;
    int pixelBitStride = 1;
    int scanlineStride = 0;
    if (useTurbo) {
        decodeRaw(byteData, dstOffset, pixelBitStride, scanlineStride);
    } else {
        // Analyze raw image
        this.rawImage = null;
        if (isImageSimple) {
            if (isBilevel) {
                rawImage = this.image;
            } else if (isContiguous) {
                rawImage = image.getSubimage(dstMinX, dstMinY, dstWidth, dstHeight);
            }
        }
        boolean isDirectCopy = rawImage != null;
        if (rawImage == null) {
            rawImage = createRawImage();
            if (rawImage == null) {
                throw new IIOException("Couldn't create image buffer!");
            }
        }
        WritableRaster ras = rawImage.getRaster();
        if (isBilevel) {
            Rectangle rect = isImageSimple ? new Rectangle(dstMinX, dstMinY, dstWidth, dstHeight) : ras.getBounds();
            byteData = ImageUtil.getPackedBinaryData(ras, rect);
            dstOffset = 0;
            pixelBitStride = 1;
            scanlineStride = (rect.width + 7) / 8;
        } else {
            SampleModel sm = ras.getSampleModel();
            DataBuffer db = ras.getDataBuffer();
            boolean isSupportedType = false;
            if (sm instanceof ComponentSampleModel) {
                ComponentSampleModel csm = (ComponentSampleModel) sm;
                dstOffset = csm.getOffset(-ras.getSampleModelTranslateX(), -ras.getSampleModelTranslateY());
                scanlineStride = csm.getScanlineStride();
                if (db instanceof DataBufferByte) {
                    DataBufferByte dbb = (DataBufferByte) db;
                    byteData = dbb.getData();
                    pixelBitStride = csm.getPixelStride() * 8;
                    isSupportedType = true;
                } else if (db instanceof DataBufferUShort) {
                    DataBufferUShort dbus = (DataBufferUShort) db;
                    shortData = dbus.getData();
                    pixelBitStride = csm.getPixelStride() * 16;
                    isSupportedType = true;
                } else if (db instanceof DataBufferShort) {
                    DataBufferShort dbs = (DataBufferShort) db;
                    shortData = dbs.getData();
                    pixelBitStride = csm.getPixelStride() * 16;
                    isSupportedType = true;
                } else if (db instanceof DataBufferInt) {
                    DataBufferInt dbi = (DataBufferInt) db;
                    intData = dbi.getData();
                    pixelBitStride = csm.getPixelStride() * 32;
                    isSupportedType = true;
                } else if (db instanceof DataBufferFloat) {
                    DataBufferFloat dbf = (DataBufferFloat) db;
                    floatData = dbf.getData();
                    pixelBitStride = csm.getPixelStride() * 32;
                    isSupportedType = true;
                } else if (db instanceof DataBufferDouble) {
                    DataBufferDouble dbf = (DataBufferDouble) db;
                    doubleData = dbf.getData();
                    pixelBitStride = csm.getPixelStride() * 64;
                    isSupportedType = true;
                }
            } else if (sm instanceof MultiPixelPackedSampleModel) {
                MultiPixelPackedSampleModel mppsm = (MultiPixelPackedSampleModel) sm;
                dstOffset = mppsm.getOffset(-ras.getSampleModelTranslateX(), -ras.getSampleModelTranslateY());
                pixelBitStride = mppsm.getPixelBitStride();
                scanlineStride = mppsm.getScanlineStride();
                if (db instanceof DataBufferByte) {
                    DataBufferByte dbb = (DataBufferByte) db;
                    byteData = dbb.getData();
                    isSupportedType = true;
                } else if (db instanceof DataBufferUShort) {
                    DataBufferUShort dbus = (DataBufferUShort) db;
                    shortData = dbus.getData();
                    isSupportedType = true;
                } else if (db instanceof DataBufferInt) {
                    DataBufferInt dbi = (DataBufferInt) db;
                    intData = dbi.getData();
                    isSupportedType = true;
                }
            } else if (sm instanceof SinglePixelPackedSampleModel) {
                SinglePixelPackedSampleModel sppsm = (SinglePixelPackedSampleModel) sm;
                dstOffset = sppsm.getOffset(-ras.getSampleModelTranslateX(), -ras.getSampleModelTranslateY());
                scanlineStride = sppsm.getScanlineStride();
                if (db instanceof DataBufferByte) {
                    DataBufferByte dbb = (DataBufferByte) db;
                    byteData = dbb.getData();
                    pixelBitStride = 8;
                    isSupportedType = true;
                } else if (db instanceof DataBufferUShort) {
                    DataBufferUShort dbus = (DataBufferUShort) db;
                    shortData = dbus.getData();
                    pixelBitStride = 16;
                    isSupportedType = true;
                } else if (db instanceof DataBufferInt) {
                    DataBufferInt dbi = (DataBufferInt) db;
                    intData = dbi.getData();
                    pixelBitStride = 32;
                    isSupportedType = true;
                }
            }
            if (!isSupportedType) {
                throw new IIOException("Unsupported raw image type: SampleModel = " + sm + "; DataBuffer = " + db);
            }
        }
        if (isBilevel) {
            // Bilevel data are always in a contiguous byte buffer.
            decodeRaw(byteData, dstOffset, pixelBitStride, scanlineStride);
        } else {
            SampleModel sm = ras.getSampleModel();
            // bits except at the end of a row.
            if (isDataBufferBitContiguous(sm)) {
                // Use byte or float data directly.
                if (byteData != null) {
                    if (DEBUG) {
                        System.out.println("Decoding bytes directly");
                    }
                    if (offset == 0 && byteCount == 0 && noData != null) {
                        setEmptyTile(byteData, dstOffset, pixelBitStride, scanlineStride, noData.byteValue());
                    } else {
                        decodeRaw(byteData, dstOffset, pixelBitStride, scanlineStride);
                    }
                } else if (floatData != null) {
                    if (DEBUG) {
                        System.out.println("Decoding floats directly");
                    }
                    if (offset == 0 && byteCount == 0 && noData != null) {
                        setEmptyTile(floatData, dstOffset, pixelBitStride, scanlineStride, noData.floatValue());
                    } else {
                        decodeRaw(floatData, dstOffset, pixelBitStride, scanlineStride);
                    }
                } else if (doubleData != null) {
                    if (DEBUG) {
                        System.out.println("Decoding doubles directly");
                    }
                    if (offset == 0 && byteCount == 0 && noData != null) {
                        setEmptyTile(doubleData, dstOffset, pixelBitStride, scanlineStride, noData.doubleValue());
                    } else {
                        decodeRaw(doubleData, dstOffset, pixelBitStride, scanlineStride);
                    }
                } else {
                    if (shortData != null) {
                        if (offset == 0 && byteCount == 0 && noData != null) {
                            setEmptyTile(shortData, dstOffset, pixelBitStride, scanlineStride, noData.shortValue());
                        } else if (areSampleSizesEqual(sm) && sm.getSampleSize(0) == 16) {
                            if (DEBUG) {
                                System.out.println("Decoding shorts directly");
                            }
                            // Decode directly into short data.
                            decodeRaw(shortData, dstOffset, pixelBitStride, scanlineStride);
                        } else {
                            if (DEBUG) {
                                System.out.println("Decoding bytes->shorts");
                            }
                            // Decode into bytes and reformat into shorts.
                            int bpp = getBitsPerPixel(sm);
                            int bytesPerRow = (bpp * srcWidth + 7) / 8;
                            byte[] buf = new byte[bytesPerRow * srcHeight];
                            decodeRaw(buf, 0, bpp, bytesPerRow);
                            reformatData(buf, bytesPerRow, srcHeight, shortData, null, dstOffset, scanlineStride);
                        }
                    } else if (intData != null) {
                        if (offset == 0 && byteCount == 0 && noData != null) {
                            setEmptyTile(intData, dstOffset, pixelBitStride, scanlineStride, noData.intValue());
                        } else if (areSampleSizesEqual(sm) && sm.getSampleSize(0) == 32) {
                            if (DEBUG) {
                                System.out.println("Decoding ints directly");
                            }
                            // Decode directly into int data.
                            decodeRaw(intData, dstOffset, pixelBitStride, scanlineStride);
                        } else {
                            if (DEBUG) {
                                System.out.println("Decoding bytes->ints");
                            }
                            // Decode into bytes and reformat into ints.
                            int bpp = getBitsPerPixel(sm);
                            int bytesPerRow = (bpp * srcWidth + 7) / 8;
                            byte[] buf = new byte[bytesPerRow * srcHeight];
                            decodeRaw(buf, 0, bpp, bytesPerRow);
                            reformatData(buf, bytesPerRow, srcHeight, null, intData, dstOffset, scanlineStride);
                        }
                    }
                }
            } else {
                if (DEBUG) {
                    System.out.println("Decoding discontiguous data");
                }
                // Read discontiguous data into bytes and set the samples
                // into the Raster.
                int bpp = getBitsPerPixel(sm);
                int bytesPerRow = (bpp * srcWidth + 7) / 8;
                byte[] buf = new byte[bytesPerRow * srcHeight];
                decodeRaw(buf, 0, bpp, bytesPerRow);
                reformatDiscontiguousData(buf, bytesPerRow, srcWidth, srcHeight, ras);
            }
        }
        if (colorConverter != null) {
            float[] rgb = new float[3];
            if (byteData != null) {
                for (int j = 0; j < dstHeight; j++) {
                    int idx = dstOffset;
                    for (int i = 0; i < dstWidth; i++) {
                        float x0 = (float) (byteData[idx] & 0xff);
                        float x1 = (float) (byteData[idx + 1] & 0xff);
                        float x2 = (float) (byteData[idx + 2] & 0xff);
                        colorConverter.toRGB(x0, x1, x2, rgb);
                        byteData[idx] = (byte) (rgb[0]);
                        byteData[idx + 1] = (byte) (rgb[1]);
                        byteData[idx + 2] = (byte) (rgb[2]);
                        idx += 3;
                    }
                    dstOffset += scanlineStride;
                }
            } else if (shortData != null) {
                if (sampleFormat[0] == BaselineTIFFTagSet.SAMPLE_FORMAT_SIGNED_INTEGER) {
                    for (int j = 0; j < dstHeight; j++) {
                        int idx = dstOffset;
                        for (int i = 0; i < dstWidth; i++) {
                            float x0 = (float) shortData[idx];
                            float x1 = (float) shortData[idx + 1];
                            float x2 = (float) shortData[idx + 2];
                            colorConverter.toRGB(x0, x1, x2, rgb);
                            shortData[idx] = (short) (rgb[0]);
                            shortData[idx + 1] = (short) (rgb[1]);
                            shortData[idx + 2] = (short) (rgb[2]);
                            idx += 3;
                        }
                        dstOffset += scanlineStride;
                    }
                } else {
                    for (int j = 0; j < dstHeight; j++) {
                        int idx = dstOffset;
                        for (int i = 0; i < dstWidth; i++) {
                            float x0 = (float) (shortData[idx] & 0xffff);
                            float x1 = (float) (shortData[idx + 1] & 0xffff);
                            float x2 = (float) (shortData[idx + 2] & 0xffff);
                            colorConverter.toRGB(x0, x1, x2, rgb);
                            shortData[idx] = (short) (rgb[0]);
                            shortData[idx + 1] = (short) (rgb[1]);
                            shortData[idx + 2] = (short) (rgb[2]);
                            idx += 3;
                        }
                        dstOffset += scanlineStride;
                    }
                }
            } else if (intData != null) {
                for (int j = 0; j < dstHeight; j++) {
                    int idx = dstOffset;
                    for (int i = 0; i < dstWidth; i++) {
                        float x0 = (float) intData[idx];
                        float x1 = (float) intData[idx + 1];
                        float x2 = (float) intData[idx + 2];
                        colorConverter.toRGB(x0, x1, x2, rgb);
                        intData[idx] = (int) (rgb[0]);
                        intData[idx + 1] = (int) (rgb[1]);
                        intData[idx + 2] = (int) (rgb[2]);
                        idx += 3;
                    }
                    dstOffset += scanlineStride;
                }
            } else if (floatData != null) {
                for (int j = 0; j < dstHeight; j++) {
                    int idx = dstOffset;
                    for (int i = 0; i < dstWidth; i++) {
                        float x0 = floatData[idx];
                        float x1 = floatData[idx + 1];
                        float x2 = floatData[idx + 2];
                        colorConverter.toRGB(x0, x1, x2, rgb);
                        floatData[idx] = rgb[0];
                        floatData[idx + 1] = rgb[1];
                        floatData[idx + 2] = rgb[2];
                        idx += 3;
                    }
                    dstOffset += scanlineStride;
                }
            }
        // int[] p = new int[3];
        // ras.getPixel(0, 0, p);
        // System.out.println("p00 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ras.getPixel(1, 0, p);
        // System.out.println("p10 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ras.getPixel(2, 0, p);
        // System.out.println("p20 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ras.getPixel(3, 0, p);
        // System.out.println("p30 = " +
        // p[0] + " " + p[1] + " " + p[2]);
        // ColorSpace rgb = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        // ColorConvertOp op = new ColorConvertOp(colorSpace, rgb, null);
        // WritableRaster dest = op.createCompatibleDestRaster(ras);
        // op.filter(ras, dest);
        // ras = dest;
        }
        if (photometricInterpretation == BaselineTIFFTagSet.PHOTOMETRIC_INTERPRETATION_WHITE_IS_ZERO) {
            if (byteData != null) {
                int bytesPerRow = (srcWidth * pixelBitStride + 7) / 8;
                for (int y = 0; y < srcHeight; y++) {
                    int offset = dstOffset + y * scanlineStride;
                    for (int i = 0; i < bytesPerRow; i++) {
                        byteData[offset + i] ^= 0xff;
                    }
                }
            } else if (shortData != null) {
                int shortsPerRow = (srcWidth * pixelBitStride + 15) / 16;
                if (sampleFormat[0] == BaselineTIFFTagSet.SAMPLE_FORMAT_SIGNED_INTEGER) {
                    for (int y = 0; y < srcHeight; y++) {
                        int offset = dstOffset + y * scanlineStride;
                        for (int i = 0; i < shortsPerRow; i++) {
                            int shortOffset = offset + i;
                            // XXX Does this make any sense?
                            shortData[shortOffset] = (short) (Short.MAX_VALUE - shortData[shortOffset]);
                        }
                    }
                } else {
                    for (int y = 0; y < srcHeight; y++) {
                        int offset = dstOffset + y * scanlineStride;
                        for (int i = 0; i < shortsPerRow; i++) {
                            shortData[offset + i] ^= 0xffff;
                        }
                    }
                }
            } else if (intData != null) {
                int intsPerRow = (srcWidth * pixelBitStride + 15) / 16;
                for (int y = 0; y < srcHeight; y++) {
                    int offset = dstOffset + y * scanlineStride;
                    for (int i = 0; i < intsPerRow; i++) {
                        int intOffset = offset + i;
                        // XXX Does this make any sense?
                        intData[intOffset] = Integer.MAX_VALUE - intData[intOffset];
                    }
                }
            } else if (floatData != null) {
                int floatsPerRow = (srcWidth * pixelBitStride + 15) / 16;
                for (int y = 0; y < srcHeight; y++) {
                    int offset = dstOffset + y * scanlineStride;
                    for (int i = 0; i < floatsPerRow; i++) {
                        int floatOffset = offset + i;
                        // XXX Does this make any sense?
                        floatData[floatOffset] = 1.0F - floatData[floatOffset];
                    }
                }
            }
        }
        if (isBilevel) {
            Rectangle rect = isImageSimple ? new Rectangle(dstMinX, dstMinY, dstWidth, dstHeight) : ras.getBounds();
            ImageUtil.setPackedBinaryData(byteData, ras, rect);
        }
        // equals the raster of 'image' or is a child thereof.
        if (isDirectCopy) {
            // rawImage == image) {
            return;
        }
    }
    // Copy the raw image data into the true destination image
    Raster src = rawImage.getRaster();
    // Create band child of source
    Raster srcChild = src.createChild(0, 0, srcWidth, srcHeight, srcMinX, srcMinY, planar ? null : sourceBands);
    WritableRaster dst = image.getRaster();
    // Create dst child covering area and bands to be written
    WritableRaster dstChild = dst.createWritableChild(dstMinX, dstMinY, dstWidth, dstHeight, dstMinX, dstMinY, destinationBands);
    if (subsampleX == 1 && subsampleY == 1 && !adjustBitDepths) {
        srcChild = srcChild.createChild(activeSrcMinX, activeSrcMinY, activeSrcWidth, activeSrcHeight, dstMinX, dstMinY, null);
        dstChild.setRect(srcChild);
    } else if (subsampleX == 1 && !adjustBitDepths) {
        int sy = activeSrcMinY;
        int dy = dstMinY;
        while (sy < srcMinY + srcHeight) {
            Raster srcRow = srcChild.createChild(activeSrcMinX, sy, activeSrcWidth, 1, dstMinX, dy, null);
            dstChild.setRect(srcRow);
            sy += subsampleY;
            ++dy;
        }
    } else {
        // /init vars
        int numBands = srcChild.getNumBands();
        int sy = activeSrcMinY;
        int dy = dstMinY;
        // get the databuffer type
        final int type = srcChild.getDataBuffer().getDataType();
        switch(type) {
            case DataBuffer.TYPE_BYTE:
            case DataBuffer.TYPE_INT:
            case DataBuffer.TYPE_SHORT:
            case DataBuffer.TYPE_USHORT:
                int[] p = srcChild.getPixel(srcMinX, srcMinY, (int[]) null);
                while (sy < activeSrcMinY + activeSrcHeight) {
                    int sx = activeSrcMinX;
                    int dx = dstMinX;
                    while (sx < activeSrcMinX + activeSrcWidth) {
                        srcChild.getPixel(sx, sy, p);
                        if (adjustBitDepths) {
                            for (int band = 0; band < numBands; band++) {
                                p[band] = bitDepthScale[band][p[band]];
                            }
                        }
                        dstChild.setPixel(dx, dy, p);
                        sx += subsampleX;
                        ++dx;
                    }
                    sy += subsampleY;
                    ++dy;
                }
                break;
            case DataBuffer.TYPE_DOUBLE:
                double[] d = srcChild.getPixel(srcMinX, srcMinY, (double[]) null);
                while (sy < activeSrcMinY + activeSrcHeight) {
                    int sx = activeSrcMinX;
                    int dx = dstMinX;
                    while (sx < activeSrcMinX + activeSrcWidth) {
                        srcChild.getPixel(sx, sy, d);
                        // if (adjustBitDepths) {
                        // for (int band = 0; band < numBands; band++) {
                        // d[band] = bitDepthScale[band][d[band]];
                        // }
                        // }
                        dstChild.setPixel(dx, dy, d);
                        sx += subsampleX;
                        ++dx;
                    }
                    sy += subsampleY;
                    ++dy;
                }
                break;
            case DataBuffer.TYPE_FLOAT:
                float[] f = srcChild.getPixel(srcMinX, srcMinY, (float[]) null);
                while (sy < activeSrcMinY + activeSrcHeight) {
                    int sx = activeSrcMinX;
                    int dx = dstMinX;
                    while (sx < activeSrcMinX + activeSrcWidth) {
                        srcChild.getPixel(sx, sy, f);
                        // if (adjustBitDepths) {
                        // for (int band = 0; band < numBands; band++) {
                        // d[band] = bitDepthScale[band][d[band]];
                        // }
                        // }
                        dstChild.setPixel(dx, dy, f);
                        sx += subsampleX;
                        ++dx;
                    }
                    sy += subsampleY;
                    ++dy;
                }
                break;
            default:
                break;
        }
    }
}

Example 8 with DataBufferFloat

use of java.awt.image.DataBufferFloat in project javacv by bytedeco.

the class Java2DFrameConverter method copy.

public static void copy(Frame frame, BufferedImage bufferedImage, double gamma, boolean flipChannels, Rectangle roi) {
    Buffer in = frame.image[0];
    int bufferIndex = roi == null ? 0 : roi.y * frame.imageStride + roi.x * frame.imageChannels;
    SampleModel sm = bufferedImage.getSampleModel();
    Raster r = bufferedImage.getRaster();
    DataBuffer out = r.getDataBuffer();
    int x = -r.getSampleModelTranslateX();
    int y = -r.getSampleModelTranslateY();
    int step = sm.getWidth() * sm.getNumBands();
    int channels = sm.getNumBands();
    if (sm instanceof ComponentSampleModel) {
        step = ((ComponentSampleModel) sm).getScanlineStride();
        channels = ((ComponentSampleModel) sm).getPixelStride();
    } else if (sm instanceof SinglePixelPackedSampleModel) {
        step = ((SinglePixelPackedSampleModel) sm).getScanlineStride();
        channels = 1;
    } else if (sm instanceof MultiPixelPackedSampleModel) {
        step = ((MultiPixelPackedSampleModel) sm).getScanlineStride();
        // ??
        channels = ((MultiPixelPackedSampleModel) sm).getPixelBitStride() / 8;
    }
    int start = y * step + x * channels;
    if (out instanceof DataBufferByte) {
        byte[] a = ((DataBufferByte) out).getData();
        flipCopyWithGamma((ByteBuffer) in, bufferIndex, frame.imageStride, ByteBuffer.wrap(a), start, step, false, gamma, false, flipChannels ? channels : 0);
    } else if (out instanceof DataBufferDouble) {
        double[] a = ((DataBufferDouble) out).getData();
        flipCopyWithGamma((DoubleBuffer) in, bufferIndex, frame.imageStride, DoubleBuffer.wrap(a), start, step, gamma, false, flipChannels ? channels : 0);
    } else if (out instanceof DataBufferFloat) {
        float[] a = ((DataBufferFloat) out).getData();
        flipCopyWithGamma((FloatBuffer) in, bufferIndex, frame.imageStride, FloatBuffer.wrap(a), start, step, gamma, false, flipChannels ? channels : 0);
    } else if (out instanceof DataBufferInt) {
        int[] a = ((DataBufferInt) out).getData();
        int stride = frame.imageStride;
        if (in instanceof ByteBuffer) {
            in = ((ByteBuffer) in).order(flipChannels ? ByteOrder.LITTLE_ENDIAN : ByteOrder.BIG_ENDIAN).asIntBuffer();
            stride /= 4;
        }
        flipCopyWithGamma((IntBuffer) in, bufferIndex, stride, IntBuffer.wrap(a), start, step, gamma, false, flipChannels ? channels : 0);
    } else if (out instanceof DataBufferShort) {
        short[] a = ((DataBufferShort) out).getData();
        flipCopyWithGamma((ShortBuffer) in, bufferIndex, frame.imageStride, ShortBuffer.wrap(a), start, step, true, gamma, false, flipChannels ? channels : 0);
    } else if (out instanceof DataBufferUShort) {
        short[] a = ((DataBufferUShort) out).getData();
        flipCopyWithGamma((ShortBuffer) in, bufferIndex, frame.imageStride, ShortBuffer.wrap(a), start, step, false, gamma, false, flipChannels ? channels : 0);
    } else {
        assert false;
    }
}