/** Creates an SGIImage from the specified data in either RGB or RGBA format. */ public static SGIImage createFromData( final int width, final int height, final boolean hasAlpha, final byte[] data) { final Header header = new Header(); header.xsize = (short) width; header.ysize = (short) height; header.zsize = (short) (hasAlpha ? 4 : 3); final SGIImage image = new SGIImage(header); image.data = data; return image; }
private void decodeImage(final DataInputStream in) throws IOException { if (header.storage == 1) { // Read RLE compression data; row starts and sizes final int x = header.ysize * header.zsize; rowStart = new int[x]; rowSize = new int[x]; rleEnd = 4 * 2 * x + 512; for (int i = 0; i < x; i++) { rowStart[i] = in.readInt(); } for (int i = 0; i < x; i++) { rowSize[i] = in.readInt(); } tmpRead = new byte[header.xsize * 256]; } tmpData = readAll(in); final int xsize = header.xsize; final int ysize = header.ysize; final int zsize = header.zsize; int lptr = 0; data = new byte[xsize * ysize * 4]; final byte[] rbuf = new byte[xsize]; final byte[] gbuf = new byte[xsize]; final byte[] bbuf = new byte[xsize]; final byte[] abuf = new byte[xsize]; for (int y = 0; y < ysize; y++) { if (zsize >= 4) { getRow(rbuf, y, 0); getRow(gbuf, y, 1); getRow(bbuf, y, 2); getRow(abuf, y, 3); rgbatorgba(rbuf, gbuf, bbuf, abuf, data, lptr); } else if (zsize == 3) { getRow(rbuf, y, 0); getRow(gbuf, y, 1); getRow(bbuf, y, 2); rgbtorgba(rbuf, gbuf, bbuf, data, lptr); } else if (zsize == 2) { getRow(rbuf, y, 0); getRow(abuf, y, 1); latorgba(rbuf, abuf, data, lptr); } else { getRow(rbuf, y, 0); bwtorgba(rbuf, data, lptr); } lptr += 4 * xsize; } rowStart = null; rowSize = null; tmpData = null; tmpRead = null; format = GL.GL_RGBA; header.zsize = 4; }
@Override public String toString() { return header.toString(); }