Java Raster.getHeight方法代码示例

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Return a Raster containing the colors generated for the graphics
 * operation.
 * @param x,y,w,h The area in device space for which colors are
 * generated.
 */
public Raster getRaster(int x, int y, int w, int h) {
    double rowrel = (x - x1) * dx + (y - y1) * dy;

    Raster rast = saved;
    if (rast == null || rast.getWidth() < w || rast.getHeight() < h) {
        rast = getCachedRaster(model, w, h);
        saved = rast;
    }
    IntegerComponentRaster irast = (IntegerComponentRaster) rast;
    int off = irast.getDataOffset(0);
    int adjust = irast.getScanlineStride() - w;
    int[] pixels = irast.getDataStorage();

    if (cyclic) {
        cycleFillRaster(pixels, off, adjust, w, h, rowrel, dx, dy);
    } else {
        clipFillRaster(pixels, off, adjust, w, h, rowrel, dx, dy);
    }

    irast.markDirty();

    return rast;
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Took this cacheRaster code from GradientPaint. It appears to recycle
 * rasters for use by any other instance, as long as they are sufficiently
 * large.
 */
private static synchronized void putCachedRaster(ColorModel cm,
                                                 Raster ras)
{
    if (cached != null) {
        Raster cras = cached.get();
        if (cras != null) {
            int cw = cras.getWidth();
            int ch = cras.getHeight();
            int iw = ras.getWidth();
            int ih = ras.getHeight();
            if (cw >= iw && ch >= ih) {
                return;
            }
            if (cw * ch >= iw * ih) {
                return;
            }
        }
    }
    cachedModel = cm;
    cached = new WeakReference<Raster>(ras);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Took this cacheRaster code from GradientPaint. It appears to recycle
 * rasters for use by any other instance, as long as they are sufficiently
 * large.
 */
private static synchronized void putCachedRaster(ColorModel cm,
                                                 Raster ras)
{
    if (cached != null) {
        Raster cras = (Raster) cached.get();
        if (cras != null) {
            int cw = cras.getWidth();
            int ch = cras.getHeight();
            int iw = ras.getWidth();
            int ih = ras.getHeight();
            if (cw >= iw && ch >= ih) {
                return;
            }
            if (cw * ch >= iw * ih) {
                return;
            }
        }
    }
    cachedModel = cm;
    cached = new WeakReference<Raster>(ras);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Stores the Raster data at the specified location.
 * An ArrayIndexOutOfBounds exception will be thrown at runtime
 * if the pixel coordinates are out of bounds.
 * @param x          The X coordinate of the pixel location.
 * @param y          The Y coordinate of the pixel location.
 * @param inRaster   Raster of data to place at x,y location.
 */
public void setDataElements(int x, int y, Raster inRaster) {
    int srcOffX = inRaster.getMinX();
    int srcOffY = inRaster.getMinY();
    int dstOffX = x + srcOffX;
    int dstOffY = y + srcOffY;
    int width  = inRaster.getWidth();
    int height = inRaster.getHeight();
    if ((dstOffX < this.minX) || (dstOffY < this.minY) ||
        (dstOffX + width > this.maxX) || (dstOffY + height > this.maxY)) {
        throw new ArrayIndexOutOfBoundsException
            ("Coordinate out of bounds!");
    }

    setDataElements(dstOffX, dstOffY, srcOffX, srcOffY,
                    width, height, inRaster);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
static synchronized Raster getCachedRaster(ColorModel cm, int w, int h) {
    if (cm == cachedModel) {
        if (cached != null) {
            Raster ras = (Raster) cached.get();
            if (ras != null &&
                ras.getWidth() >= w &&
                ras.getHeight() >= h)
            {
                cached = null;
                return ras;
            }
        }
    }
    return cm.createCompatibleWritableRaster(w, h);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
public void setRect(int dx, int dy, Raster srcRaster) {
    if (!(srcRaster instanceof ByteInterleavedRaster)) {
        super.setRect(dx, dy, srcRaster);
        return;
    }

    int width  = srcRaster.getWidth();
    int height = srcRaster.getHeight();
    int srcOffX = srcRaster.getMinX();
    int srcOffY = srcRaster.getMinY();
    int dstOffX = dx+srcOffX;
    int dstOffY = dy+srcOffY;

    // Clip to this raster
    if (dstOffX < this.minX) {
        int skipX = minX - dstOffX;
        width -= skipX;
        srcOffX += skipX;
        dstOffX = this.minX;
    }
    if (dstOffY < this.minY) {
        int skipY = this.minY - dstOffY;
        height -= skipY;
        srcOffY += skipY;
        dstOffY = this.minY;
    }
    if (dstOffX+width > this.maxX) {
        width = this.maxX - dstOffX;
    }
    if (dstOffY+height > this.maxY) {
        height = this.maxY - dstOffY;
    }

    setDataElements(dstOffX, dstOffY,
                    srcOffX, srcOffY,
                    width, height, srcRaster);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * {@inheritDoc}
 */
public final Raster getRaster(int x, int y, int w, int h) {
    // If working raster is big enough, reuse it. Otherwise,
    // build a large enough new one.
    Raster raster = saved;
    if (raster == null ||
        raster.getWidth() < w || raster.getHeight() < h)
    {
        raster = getCachedRaster(model, w, h);
        saved = raster;
    }

    // Access raster internal int array. Because we use a DirectColorModel,
    // we know the DataBuffer is of type DataBufferInt and the SampleModel
    // is SinglePixelPackedSampleModel.
    // Adjust for initial offset in DataBuffer and also for the scanline
    // stride.
    // These calls make the DataBuffer non-acceleratable, but the
    // Raster is never Stable long enough to accelerate anyway...
    DataBufferInt rasterDB = (DataBufferInt)raster.getDataBuffer();
    int[] pixels = rasterDB.getData(0);
    int off = rasterDB.getOffset();
    int scanlineStride = ((SinglePixelPackedSampleModel)
                          raster.getSampleModel()).getScanlineStride();
    int adjust = scanlineStride - w;

    fillRaster(pixels, off, adjust, x, y, w, h); // delegate to subclass

    return raster;
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {
    int w = src.getWidth();
    int h = src.getHeight();

    DataBufferInt srcDB = (DataBufferInt) src.getDataBuffer();
    DataBufferInt dstOutDB = (DataBufferInt) dstOut.getDataBuffer();
    int srcRGB[] = srcDB.getBankData()[0];
    int dstOutRGB[] = dstOutDB.getBankData()[0];
    int srcOffset = srcDB.getOffset();
    int dstOutOffset = dstOutDB.getOffset();
    int srcScanStride = ((SinglePixelPackedSampleModel) src.getSampleModel()).getScanlineStride();
    int dstOutScanStride = ((SinglePixelPackedSampleModel) dstOut.getSampleModel()).getScanlineStride();
    int srcAdjust = srcScanStride - w;
    int dstOutAdjust = dstOutScanStride - w;

    int si = srcOffset;
    int doi = dstOutOffset;

    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            dstOutRGB[doi] = srcRGB[si] ^ 0x00ffffff;
            si++;
            doi++;
        }

        si += srcAdjust;
        doi += dstOutAdjust;
    }
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Stores the Raster data at the specified location.
 * An ArrayIndexOutOfBounds exception will be thrown at runtime
 * if the pixel coordinates are out of bounds.
 * @param x          The X coordinate of the pixel location.
 * @param y          The Y coordinate of the pixel location.
 * @param inRaster   Raster of data to place at x,y location.
 */
public void setDataElements(int x, int y, Raster inRaster) {
    int dstOffX = x + inRaster.getMinX();
    int dstOffY = y + inRaster.getMinY();
    int width  = inRaster.getWidth();
    int height = inRaster.getHeight();
    if ((dstOffX < this.minX) || (dstOffY < this.minY) ||
        (dstOffX + width > this.maxX) || (dstOffY + height > this.maxY)) {
        throw new ArrayIndexOutOfBoundsException
            ("Coordinate out of bounds!");
    }

    setDataElements(dstOffX, dstOffY, width, height, inRaster);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Stores the Raster data at the specified location.
 * The transferType of the inputRaster must match this raster.
 * An ArrayIndexOutOfBoundsException will be thrown at runtime
 * if the pixel coordinates are out of bounds.
 * @param x          The X coordinate of the pixel location.
 * @param y          The Y coordinate of the pixel location.
 * @param inRaster   Raster of data to place at x,y location.
 */
public void setDataElements(int x, int y, Raster inRaster) {
    int dstOffX = x + inRaster.getMinX();
    int dstOffY = y + inRaster.getMinY();
    int width  = inRaster.getWidth();
    int height = inRaster.getHeight();
    if ((dstOffX < this.minX) || (dstOffY < this.minY) ||
        (dstOffX + width > this.maxX) || (dstOffY + height > this.maxY)) {
        throw new ArrayIndexOutOfBoundsException
            ("Coordinate out of bounds!");
    }

    setDataElements(dstOffX, dstOffY, width, height, inRaster);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Constructs a SingleTileRenderedImage based on a Raster
 * and a ColorModel.
 *
 * @param ras A Raster that will define tile (0, 0) of the image.
 * @param colorModel A ColorModel that will serve as the image's
 *           ColorModel.
 */
public SingleTileRenderedImage(Raster ras, ColorModel colorModel) {
    this.ras = ras;

    this.tileGridXOffset = this.minX = ras.getMinX();
    this.tileGridYOffset = this.minY = ras.getMinY();
    this.tileWidth = this.width = ras.getWidth();
    this.tileHeight = this.height = ras.getHeight();
    this.sampleModel = ras.getSampleModel();
    this.colorModel = colorModel;
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Stores the Raster data at the specified location.
 * The transferType of the inputRaster must match this raster.
 * An ArrayIndexOutOfBoundsException will be thrown at runtime
 * if the pixel coordinates are out of bounds.
 * @param x          The X coordinate of the pixel location.
 * @param y          The Y coordinate of the pixel location.
 * @param inRaster   Raster of data to place at x,y location.
 */
public void setDataElements(int x, int y, Raster inRaster) {
    int dstOffX = x + inRaster.getMinX();
    int dstOffY = y + inRaster.getMinY();
    int width  = inRaster.getWidth();
    int height = inRaster.getHeight();
    if ((dstOffX < this.minX) || (dstOffY < this.minY) ||
        (dstOffX + width > this.maxX) || (dstOffY + height > this.maxY)) {
        throw new ArrayIndexOutOfBoundsException
            ("Coordinate out of bounds!");
    }
    setDataElements(dstOffX, dstOffY, width, height, inRaster);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Stores the Raster data at the specified location.
 * An ArrayIndexOutOfBounds exception will be thrown at runtime
 * if the pixel coordinates are out of bounds.
 * @param x          The X coordinate of the pixel location.
 * @param y          The Y coordinate of the pixel location.
 * @param inRaster   Raster of data to place at x,y location.
 */
public void setDataElements(int x, int y, Raster inRaster) {
    int dstOffX = inRaster.getMinX() + x;
    int dstOffY = inRaster.getMinY() + y;
    int width  = inRaster.getWidth();
    int height = inRaster.getHeight();
    if ((dstOffX < this.minX) || (dstOffY < this.minY) ||
        (dstOffX + width > this.maxX) || (dstOffY + height > this.maxY)) {
        throw new ArrayIndexOutOfBoundsException
            ("Coordinate out of bounds!");
    }

    setDataElements(dstOffX, dstOffY, width, height, inRaster);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
/**
 * Copies pixels from Raster srcRaster to this WritableRaster.
 * For each (x, y) address in srcRaster, the corresponding pixel
 * is copied to address (x+dx, y+dy) in this WritableRaster,
 * unless (x+dx, y+dy) falls outside the bounds of this raster.
 * srcRaster must have the same number of bands as this WritableRaster.
 * The copy is a simple copy of source samples to the corresponding
 * destination samples.  For details, see
 * {@link WritableRaster#setRect(Raster)}.
 *
 * @param dx        The X translation factor from src space to dst space
 *                  of the copy.
 * @param dy        The Y translation factor from src space to dst space
 *                  of the copy.
 * @param srcRaster The Raster from which to copy pixels.
 */
public void setRect(int dx, int dy, Raster srcRaster) {
    // Check if we can use fast code
    if (!(srcRaster instanceof BytePackedRaster) ||
        ((BytePackedRaster)srcRaster).pixelBitStride != pixelBitStride) {
        super.setRect(dx, dy, srcRaster);
        return;
    }

    int width  = srcRaster.getWidth();
    int height = srcRaster.getHeight();
    int srcOffX = srcRaster.getMinX();
    int srcOffY = srcRaster.getMinY();
    int dstOffX = dx+srcOffX;
    int dstOffY = dy+srcOffY;

    // Clip to this raster
    if (dstOffX < this.minX) {
        int skipX = this.minX - dstOffX;
        width -= skipX;
        srcOffX += skipX;
        dstOffX = this.minX;
    }
    if (dstOffY < this.minY) {
        int skipY = this.minY - dstOffY;
        height -= skipY;
        srcOffY += skipY;
        dstOffY = this.minY;
    }
    if (dstOffX+width > this.maxX) {
        width = this.maxX - dstOffX;
    }
    if (dstOffY+height > this.maxY) {
        height = this.maxY - dstOffY;
    }

    setDataElements(dstOffX, dstOffY,
                    srcOffX, srcOffY,
                    width, height,
                    (BytePackedRaster)srcRaster);
}
 

import java.awt.image.Raster; //导入方法依赖的package包/类
private opj_image createImage(Raster img) {
  int numBands = img.getSampleModel().getNumBands();
  if (numBands != 3 && numBands != 1) {
    throw new IllegalArgumentException("Image must be RGB or Greyscale");
  }
  if (!(img.getSampleModel() instanceof PixelInterleavedSampleModel)) {
    throw new IllegalArgumentException("Image must be of the 3BYTE_BGR or BYTE_GRAY");
  }
  opj_image_comptparm parms[] = Struct.arrayOf(runtime, opj_image_comptparm.class, numBands);
  for (int i=0; i < numBands; i++) {
    parms[i].prec.set(8);  // One byte per component
    parms[i].bpp.set(8);   // 8bit depth
    parms[i].sgnd.set(0);
    parms[i].dx.set(1);
    parms[i].dy.set(1);
    parms[i].w.set(img.getWidth());
    parms[i].h.set(img.getHeight());
  }

  COLOR_SPACE cspace = numBands == 3 ? COLOR_SPACE.OPJ_CLRSPC_SRGB : COLOR_SPACE.OPJ_CLRSPC_GRAY;
  opj_image outImg = new opj_image(runtime);
  Pointer imgPtr = lib.opj_image_create(parms.length, Struct.getMemory(parms[0]), cspace);
  outImg.useMemory(imgPtr);

  outImg.x0.set(0);
  outImg.y0.set(0);
  outImg.x1.set(img.getWidth());
  outImg.y1.set(img.getHeight());

  byte[] imgData = ((DataBufferByte) img.getDataBuffer()).getData();
  int numcomps = (int) outImg.numcomps.get();
  opj_image_comp[] comps = outImg.comps.get(numcomps);

  if (numcomps > 1) {
    Pointer red = comps[0].data.get();
    Pointer green = comps[1].data.get();
    Pointer blue = comps[2].data.get();
    int offset = 0;
    for (int y = 0; y < img.getHeight(); y++) {
      for (int x = 0; x < img.getWidth(); x++) {
        red.putByte(offset * 4, imgData[offset * 3 + 2]);
        green.putByte(offset * 4, imgData[offset * 3 + 1]);
        blue.putByte(offset * 4, imgData[offset * 3]);
        offset += 1;
      }
    }
  } else {
    Pointer ptr = comps[0].data.get();
    for (int i=0; i < img.getWidth() * img.getHeight(); i++) {
      ptr.putByte(i*4, imgData[i]);
    }
  }
  return outImg;
}