List of usage examples for java.awt.image Raster getSampleModelTranslateX
public final int getSampleModelTranslateX()
From source file:GraphicsUtil.java
/** * Creates a new raster that has a <b>copy</b> of the data in * <tt>ras</tt>. This is highly optimized for speed. There is * no provision for changing any aspect of the SampleModel. * However you can specify a new location for the returned raster. * * This method should be used when you need to change the contents * of a Raster that you do not "own" (ie the result of a * <tt>getData</tt> call)./*from w w w . j a v a2 s. c o m*/ * * @param ras The Raster to copy. * * @param minX The x location for the upper left corner of the * returned WritableRaster. * * @param minY The y location for the upper left corner of the * returned WritableRaster. * * @return A writable copy of <tt>ras</tt> */ public static WritableRaster copyRaster(Raster ras, int minX, int minY) { WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), new Point(0, 0)); ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(), ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null); // Use System.arraycopy to copy the data between the two... DataBuffer srcDB = ras.getDataBuffer(); DataBuffer retDB = ret.getDataBuffer(); if (srcDB.getDataType() != retDB.getDataType()) { throw new IllegalArgumentException("New DataBuffer doesn't match original"); } int len = srcDB.getSize(); int banks = srcDB.getNumBanks(); int[] offsets = srcDB.getOffsets(); for (int b = 0; b < banks; b++) { switch (srcDB.getDataType()) { case DataBuffer.TYPE_BYTE: { DataBufferByte srcDBT = (DataBufferByte) srcDB; DataBufferByte retDBT = (DataBufferByte) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } case DataBuffer.TYPE_INT: { DataBufferInt srcDBT = (DataBufferInt) srcDB; DataBufferInt retDBT = (DataBufferInt) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } case DataBuffer.TYPE_SHORT: { DataBufferShort srcDBT = (DataBufferShort) srcDB; DataBufferShort retDBT = (DataBufferShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } case DataBuffer.TYPE_USHORT: { DataBufferUShort srcDBT = (DataBufferUShort) srcDB; DataBufferUShort retDBT = (DataBufferUShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } } } return ret; }
From source file:GraphicsUtil.java
/** * Coerces <tt>ras</tt> to be writable. The returned Raster continues to * reference the DataBuffer from ras, so modifications to the returned * WritableRaster will be seen in ras.<p> * * You can specify a new location for the returned WritableRaster, this * is especially useful for constructing BufferedImages which require * the Raster to be at (0,0)./*from ww w. ja v a 2 s .c o m*/ * * This method should only be used if you need a WritableRaster due to * an interface (such as to construct a BufferedImage), but have no * intention of modifying the contents of the returned Raster. If * you have any doubt about other users of the data in <tt>ras</tt>, * use copyRaster (above). * * @param ras The raster to make writable. * * @param minX The x location for the upper left corner of the * returned WritableRaster. * * @param minY The y location for the upper left corner of the * returned WritableRaster. * * @return A Writable version of <tT>ras</tt> with it's upper left * hand coordinate set to minX, minY (shares it's DataBuffer * with <tt>ras</tt>). */ public static WritableRaster makeRasterWritable(Raster ras, int minX, int minY) { WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), ras.getDataBuffer(), new Point(0, 0)); ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(), ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null); return ret; }
From source file:GraphicsUtil.java
/** * Creates a new raster that has a <b>copy</b> of the data in * <tt>ras</tt>. This is highly optimized for speed. There is * no provision for changing any aspect of the SampleModel. * However you can specify a new location for the returned raster. * * This method should be used when you need to change the contents * of a Raster that you do not "own" (ie the result of a * <tt>getData</tt> call)./*from ww w. j a va 2 s . co m*/ * * @param ras The Raster to copy. * * @param minX The x location for the upper left corner of the * returned WritableRaster. * * @param minY The y location for the upper left corner of the * returned WritableRaster. * * @return A writable copy of <tt>ras</tt> */ public static WritableRaster copyRaster(Raster ras, int minX, int minY) { WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), new Point(0, 0)); ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(), ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null); // Use System.arraycopy to copy the data between the two... DataBuffer srcDB = ras.getDataBuffer(); DataBuffer retDB = ret.getDataBuffer(); if (srcDB.getDataType() != retDB.getDataType()) { throw new IllegalArgumentException("New DataBuffer doesn't match original"); } int len = srcDB.getSize(); int banks = srcDB.getNumBanks(); int[] offsets = srcDB.getOffsets(); for (int b = 0; b < banks; b++) { switch (srcDB.getDataType()) { case DataBuffer.TYPE_BYTE: { DataBufferByte srcDBT = (DataBufferByte) srcDB; DataBufferByte retDBT = (DataBufferByte) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } case DataBuffer.TYPE_INT: { DataBufferInt srcDBT = (DataBufferInt) srcDB; DataBufferInt retDBT = (DataBufferInt) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } case DataBuffer.TYPE_SHORT: { DataBufferShort srcDBT = (DataBufferShort) srcDB; DataBufferShort retDBT = (DataBufferShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } case DataBuffer.TYPE_USHORT: { DataBufferUShort srcDBT = (DataBufferUShort) srcDB; DataBufferUShort retDBT = (DataBufferUShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } } } return ret; }
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/* w ww.j a v a 2 s .c om*/ * @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++]; } } }