From 16e23f079b1e5fdc15b64bf1593cbda8e8dcffc0 Mon Sep 17 00:00:00 2001
From: Kenneth Russel <kbrussel@alum.mit.edu>
Date: Fri, 13 Jan 2006 07:29:23 +0000
Subject: Renamed com.sun.opengl.utils to com.sun.opengl.util. Moved
TextureIO-related classes to com.sun.opengl.util.texture and TextureProvider,
TextureWriter and format-specific readers to com.sun.opengl.util.texture.spi.
Renamed BufferUtils to BufferUtil. Added ImageUtil and FileUtil. Cleaned up
javadoc. Updated demos. Cleaned up some imports.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@538 232f8b59-042b-4e1e-8c03-345bb8c30851
---
src/classes/com/sun/opengl/utils/SGIImage.java | 671 -------------------------
1 file changed, 671 deletions(-)
delete mode 100755 src/classes/com/sun/opengl/utils/SGIImage.java
(limited to 'src/classes/com/sun/opengl/utils/SGIImage.java')
diff --git a/src/classes/com/sun/opengl/utils/SGIImage.java b/src/classes/com/sun/opengl/utils/SGIImage.java
deleted file mode 100755
index f06c10b56..000000000
--- a/src/classes/com/sun/opengl/utils/SGIImage.java
+++ /dev/null
@@ -1,671 +0,0 @@
-/*
- * Portions Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package com.sun.opengl.utils;
-
-import java.io.*;
-import javax.media.opengl.*;
-import com.sun.opengl.utils.*;
-
-// Test harness
-import java.awt.image.*;
-import javax.swing.*;
-
-/** <p> Reads and writes SGI RGB/RGBA images. </p>
-
- <p> Written from <a href =
- "http://astronomy.swin.edu.au/~pbourke/dataformats/sgirgb/">Paul
- Bourke's adaptation</a> of the <a href =
- "http://astronomy.swin.edu.au/~pbourke/dataformats/sgirgb/sgiversion.html">SGI
- specification</a>. </p>
-*/
-
-public class SGIImage {
- private Header header;
- private int format;
- private byte[] data;
- // Used for decoding RLE-compressed images
- private int[] rowStart;
- private int[] rowSize;
- private int rleEnd;
- private byte[] tmpData;
- private byte[] tmpRead;
-
- private static final int MAGIC = 474;
-
- static class Header {
- short magic; // IRIS image file magic number
- // This should be decimal 474
- byte storage; // Storage format
- // 0 for uncompressed
- // 1 for RLE compression
- byte bpc; // Number of bytes per pixel channel
- // Legally 1 or 2
- short dimension; // Number of dimensions
- // Legally 1, 2, or 3
- // 1 means a single row, XSIZE long
- // 2 means a single 2D image
- // 3 means multiple 2D images
- short xsize; // X size in pixels
- short ysize; // Y size in pixels
- short zsize; // Number of channels
- // 1 indicates greyscale
- // 3 indicates RGB
- // 4 indicates RGB and Alpha
- int pixmin; // Minimum pixel value
- // This is the lowest pixel value in the image
- int pixmax; // Maximum pixel value
- // This is the highest pixel value in the image
- int dummy; // Ignored
- // Normally set to 0
- String imagename; // Image name; 80 bytes long
- // Must be null terminated, therefore at most 79 bytes
- int colormap; // Colormap ID
- // 0 - normal mode
- // 1 - dithered, 3 mits for red and green, 2 for blue, obsolete
- // 2 - index colour, obsolete
- // 3 - not an image but a colourmap
- // 404 bytes char DUMMY Ignored
- // Should be set to 0, makes the header 512 bytes.
-
- Header() {
- magic = MAGIC;
- }
-
- Header(DataInputStream in) throws IOException {
- magic = in.readShort();
- storage = in.readByte();
- bpc = in.readByte();
- dimension = in.readShort();
- xsize = in.readShort();
- ysize = in.readShort();
- zsize = in.readShort();
- pixmin = in.readInt();
- pixmax = in.readInt();
- dummy = in.readInt();
- byte[] tmpname = new byte[80];
- in.read(tmpname);
- int numChars = 0;
- while (tmpname[numChars++] != 0);
- imagename = new String(tmpname, 0, numChars);
- colormap = in.readInt();
- byte[] tmp = new byte[404];
- in.read(tmp);
- }
-
- public String toString() {
- return ("magic: " + magic +
- " storage: " + (int) storage +
- " bpc: " + (int) bpc +
- " dimension: " + dimension +
- " xsize: " + xsize +
- " ysize: " + ysize +
- " zsize: " + zsize +
- " pixmin: " + pixmin +
- " pixmax: " + pixmax +
- " imagename: " + imagename +
- " colormap: " + colormap);
- }
- }
-
- private SGIImage(Header header) {
- this.header = header;
- }
-
- /** Reads an SGI image from the specified file. */
- public static SGIImage read(String filename) throws IOException {
- return read(new FileInputStream(filename));
- }
-
- /** Reads an SGI image from the specified InputStream. */
- public static SGIImage read(InputStream in) throws IOException {
- DataInputStream dIn = new DataInputStream(new BufferedInputStream(in));
-
- Header header = new Header(dIn);
- SGIImage res = new SGIImage(header);
- res.decodeImage(dIn);
- return res;
- }
-
- /** Writes this SGIImage to the specified file name. If
- flipVertically is set, outputs the scanlines from top to bottom
- rather than the default bottom to top order. */
- public void write(String filename, boolean flipVertically) throws IOException {
- write(new File(filename), flipVertically);
- }
-
- /** Writes this SGIImage to the specified file. If flipVertically is
- set, outputs the scanlines from top to bottom rather than the
- default bottom to top order. */
- public void write(File file, boolean flipVertically) throws IOException {
- writeImage(file, data, header.xsize, header.ysize, header.zsize, flipVertically);
- }
-
- /** Creates an SGIImage from the specified data in either RGB or
- RGBA format. */
- public static SGIImage createFromData(int width,
- int height,
- boolean hasAlpha,
- byte[] data) {
- Header header = new Header();
- header.xsize = (short) width;
- header.ysize = (short) height;
- header.zsize = (short) (hasAlpha ? 4 : 3);
- SGIImage image = new SGIImage(header);
- image.data = data;
- return image;
- }
-
- /** Determines from the magic number whether the given InputStream
- points to an SGI RGB image. The given InputStream must return
- true from markSupported() and support a minimum of two bytes
- of read-ahead. */
- public static boolean isSGIImage(InputStream in) throws IOException {
- if (!(in instanceof BufferedInputStream)) {
- in = new BufferedInputStream(in);
- }
- if (!in.markSupported()) {
- throw new IOException("Can not test non-destructively whether given InputStream is an SGI RGB image");
- }
- DataInputStream dIn = new DataInputStream(in);
- dIn.mark(4);
- short magic = dIn.readShort();
- dIn.reset();
- return (magic == MAGIC);
- }
-
- /** Returns the width of the image. */
- public int getWidth() {
- return header.xsize;
- }
-
- /** Returns the height of the image. */
- public int getHeight() {
- return header.ysize;
- }
-
- /** Returns the OpenGL format for this texture; e.g. GL.GL_RGB or GL.GL_RGBA. */
- public int getFormat() {
- return format;
- }
-
- /** Returns the raw data for this texture in the correct
- (bottom-to-top) order for calls to glTexImage2D. */
- public byte[] getData() { return data; }
-
- public String toString() {
- return header.toString();
- }
-
- //----------------------------------------------------------------------
- // Internals only below this point
- //
-
- private void decodeImage(DataInputStream in) throws IOException {
- if (header.storage == 1) {
- // Read RLE compression data; row starts and sizes
- 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);
-
- int xsize = header.xsize;
- int ysize = header.ysize;
- int zsize = header.zsize;
- int lptr = 0;
-
- data = new byte[xsize * ysize * 4];
- byte[] rbuf = new byte[xsize];
- byte[] gbuf = new byte[xsize];
- byte[] bbuf = new byte[xsize];
- 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;
- }
-
- private void getRow(byte[] buf, int y, int z) {
- if (header.storage == 1) {
- int offs = rowStart[y + z * header.ysize] - rleEnd;
- System.arraycopy(tmpData, offs, tmpRead, 0, rowSize[y + z * header.ysize]);
- int iPtr = 0;
- int oPtr = 0;
- for (;;) {
- byte pixel = tmpRead[iPtr++];
- int count = (int) (pixel & 0x7F);
- if (count == 0) {
- return;
- }
- if ((pixel & 0x80) != 0) {
- while ((count--) > 0) {
- buf[oPtr++] = tmpRead[iPtr++];
- }
- } else {
- pixel = tmpRead[iPtr++];
- while ((count--) > 0) {
- buf[oPtr++] = pixel;
- }
- }
- }
- } else {
- int offs = (y * header.xsize) + (z * header.xsize * header.ysize);
- System.arraycopy(tmpData, offs, buf, 0, header.xsize);
- }
- }
-
- private void bwtorgba(byte[] b, byte[] dest, int lptr) {
- for (int i = 0; i < b.length; i++) {
- dest[4 * i + lptr + 0] = b[i];
- dest[4 * i + lptr + 1] = b[i];
- dest[4 * i + lptr + 2] = b[i];
- dest[4 * i + lptr + 3] = (byte) 0xFF;
- }
- }
-
- private void latorgba(byte[] b, byte[] a, byte[] dest, int lptr) {
- for (int i = 0; i < b.length; i++) {
- dest[4 * i + lptr + 0] = b[i];
- dest[4 * i + lptr + 1] = b[i];
- dest[4 * i + lptr + 2] = b[i];
- dest[4 * i + lptr + 3] = a[i];
- }
- }
-
- private void rgbtorgba(byte[] r, byte[] g, byte[] b, byte[] dest, int lptr) {
- for (int i = 0; i < b.length; i++) {
- dest[4 * i + lptr + 0] = r[i];
- dest[4 * i + lptr + 1] = g[i];
- dest[4 * i + lptr + 2] = b[i];
- dest[4 * i + lptr + 3] = (byte) 0xFF;
- }
- }
-
- private void rgbatorgba(byte[] r, byte[] g, byte[] b, byte[] a, byte[] dest, int lptr) {
- for (int i = 0; i < b.length; i++) {
- dest[4 * i + lptr + 0] = r[i];
- dest[4 * i + lptr + 1] = g[i];
- dest[4 * i + lptr + 2] = b[i];
- dest[4 * i + lptr + 3] = a[i];
- }
- }
-
- private static byte imgref(byte[] i,
- int x,
- int y,
- int z,
- int xs,
- int ys,
- int zs) {
- return i[(xs*ys*z)+(xs*y)+x];
- }
-
-
- private void writeHeader(DataOutputStream stream,
- int xsize, int ysize, int zsize, boolean rle) throws IOException {
- // effects: outputs the 512-byte IRIS RGB header to STREAM, using xsize,
- // ysize, and depth as the dimensions of the image. NOTE that
- // the following defaults are used:
- // STORAGE = 1 (storage format = RLE)
- // BPC = 1 (# bytes/channel)
- // DIMENSION = 3
- // PIXMIN = 0
- // PIXMAX = 255
- // IMAGENAME = <80 nulls>
- // COLORMAP = 0
- // See ftp://ftp.sgi.com/pub/sgi/SGIIMAGESPEC for more details.
-
- // write out MAGIC, STORAGE, BPC
- stream.writeShort(474);
- stream.write((rle ? 1 : 0));
- stream.write(1);
-
- // write out DIMENSION
- stream.writeShort(3);
-
- // write XSIZE, YSIZE, ZSIZE
- stream.writeShort(xsize);
- stream.writeShort(ysize);
- stream.writeShort(zsize);
-
- // write PIXMIN, PIXMAX
- stream.writeInt(0);
- stream.writeInt(255);
-
- // write DUMMY
- stream.writeInt(0);
-
- // write IMAGENAME
- for (int i = 0; i < 80; i++)
- stream.write(0);
-
- // write COLORMAP
- stream.writeInt(0);
-
- // write DUMMY (404 bytes)
- for (int i = 0; i < 404; i++)
- stream.write(0);
- }
-
- private void writeImage(File file,
- byte[] data,
- int xsize,
- int ysize,
- int zsize,
- boolean yflip) throws IOException {
- // Input data is in RGBRGBRGB or RGBARGBARGBA format; first unswizzle it
- byte[] tmpData = new byte[xsize * ysize * zsize];
- int dest = 0;
- for (int i = 0; i < zsize; i++) {
- for (int j = i; j < (xsize * ysize * zsize); j += zsize) {
- tmpData[dest++] = data[j];
- }
- }
- data = tmpData;
-
- // requires: DATA must be an array of size XSIZE * YSIZE * ZSIZE,
- // indexed in the following manner:
- // data[0] ...data[xsize-1] == first row of first channel
- // data[xsize]...data[2*xsize-1] == second row of first channel
- // ... data[(ysize - 1) * xsize]...data[(ysize * xsize) - 1] ==
- // last row of first channel
- // Later channels follow the same format.
- // *** NOTE that "first row" is defined by the BOTTOM ROW of
- // the image. That is, the origin is in the lower left corner.
- // effects: writes out an SGI image to FILE, RLE-compressed, INCLUDING
- // header, of dimensions (xsize, ysize, zsize), and containing
- // the data in DATA. If YFLIP is set, outputs the data in DATA
- // in reverse order vertically (equivalent to a flip about the
- // x axis).
-
- // Build the offset tables
- int[] starttab = new int[ysize * zsize];
- int[] lengthtab = new int[ysize * zsize];
-
- // Temporary buffer for holding RLE data.
- // Note that this makes the assumption that RLE-compressed data will
- // never exceed twice the size of the input data.
- // There are surely formal proofs about how big the RLE buffer should
- // be, as well as what the optimal look-ahead size is (i.e. don't switch
- // copy/repeat modes for less than N repeats). However, I'm going from
- // empirical evidence here; the break-even point seems to be a look-
- // ahead of 3. (That is, if the three values following this one are all
- // the same as the current value, switch to repeat mode.)
- int lookahead = 3;
- byte[] rlebuf = new byte[2 * xsize * ysize * zsize];
-
- int cur_loc = 0; // current offset location.
- int ptr = 0;
- int total_size = 0;
- int ystart = 0;
- int yincr = 1;
- int yend = ysize;
-
- if (yflip) {
- ystart = ysize - 1;
- yend = -1;
- yincr = -1;
- }
-
- boolean DEBUG = false;
-
- for (int z = 0; z < zsize; z++) {
- for (int y = ystart; y != yend; y += yincr) {
- // RLE-compress each row.
-
- int x = 0;
- byte count = 0;
- boolean repeat_mode = false;
- boolean should_switch = false;
- int start_ptr = ptr;
- int num_ptr = ptr++;
- byte repeat_val = 0;
-
- while (x < xsize) {
- // see if we should switch modes
- should_switch = false;
- if (repeat_mode) {
- if (imgref(data, x, y, z, xsize, ysize, zsize) != repeat_val) {
- should_switch = true;
- }
- } else {
- // look ahead to see if we should switch to repeat mode.
- // stay within the scanline for the lookahead
- if ((x + lookahead) < xsize) {
- should_switch = true;
- for (int i = 1; i <= lookahead; i++) {
- if (DEBUG)
- System.err.println("left side was " + ((int) imgref(data, x, y, z, xsize, ysize, zsize)) +
- ", right side was " + (int)imgref(data, x+i, y, z, xsize, ysize, zsize));
-
- if (imgref(data, x, y, z, xsize, ysize, zsize) !=
- imgref(data, x+i, y, z, xsize, ysize, zsize))
- should_switch = false;
- }
- }
- }
-
- if (should_switch || (count == 127)) {
- // update the number of elements we repeated/copied
- if (x > 0) {
- if (repeat_mode)
- rlebuf[num_ptr] = count;
- else
- rlebuf[num_ptr] = (byte) (count | 0x80);
- }
- // perform mode switch if necessary; output repeat_val if
- // switching FROM repeat mode, and set it if switching
- // TO repeat mode.
- if (repeat_mode) {
- if (should_switch)
- repeat_mode = false;
- rlebuf[ptr++] = repeat_val;
- } else {
- if (should_switch)
- repeat_mode = true;
- repeat_val = imgref(data, x, y, z, xsize, ysize, zsize);
- }
-
- if (x > 0) {
- // reset the number pointer
- num_ptr = ptr++;
- // reset number of bytes copied
- count = 0;
- }
- }
-
- // if not in repeat mode, copy element to ptr
- if (!repeat_mode) {
- rlebuf[ptr++] = imgref(data, x, y, z, xsize, ysize, zsize);
- }
- count++;
-
- if (x == xsize - 1) {
- // Need to store the number of pixels we copied/repeated.
- if (repeat_mode) {
- rlebuf[num_ptr] = count;
- // If we ended the row in repeat mode, store the
- // repeated value
- rlebuf[ptr++] = repeat_val;
- }
- else
- rlebuf[num_ptr] = (byte) (count | 0x80);
-
- // output zero counter for the last value in the row
- rlebuf[ptr++] = 0;
- }
-
- x++;
- }
- // output this row's length into the length table
- int rowlen = ptr - start_ptr;
- if (yflip)
- lengthtab[ysize*z+(ysize-y-1)] = rowlen;
- else
- lengthtab[ysize*z+y] = rowlen;
- // add to the start table, and update the current offset
- if (yflip)
- starttab[ysize*z+(ysize-y-1)] = cur_loc;
- else
- starttab[ysize*z+y] = cur_loc;
- cur_loc += rowlen;
- }
- }
-
- // Now we have the offset tables computed, as well as the RLE data.
- // Output this information to the file.
- total_size = ptr;
-
- if (DEBUG)
- System.err.println("total_size was " + total_size);
-
- DataOutputStream stream = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file)));
-
- writeHeader(stream, xsize, ysize, zsize, true);
-
- int SIZEOF_INT = 4;
- for (int i = 0; i < (ysize * zsize); i++)
- stream.writeInt(starttab[i] + 512 + (2 * ysize * zsize * SIZEOF_INT));
- for (int i = 0; i < (ysize * zsize); i++)
- stream.writeInt(lengthtab[i]);
- for (int i = 0; i < total_size; i++)
- stream.write(rlebuf[i]);
-
- stream.close();
- }
-
- private byte[] readAll(DataInputStream in) throws IOException {
- byte[] dest = new byte[16384];
- int pos = 0;
- int numRead = 0;
-
- boolean done = false;
-
- do {
- numRead = in.read(dest, pos, dest.length - pos);
- if (pos == dest.length) {
- // Resize destination buffer
- byte[] newDest = new byte[2 * dest.length];
- System.arraycopy(dest, 0, newDest, 0, pos);
- dest = newDest;
- }
- if (numRead > 0) {
- pos += numRead;
- }
-
- done = ((numRead == -1) || (in.available() == 0));
- } while (!done);
-
- // Trim destination buffer
- if (pos != dest.length) {
- byte[] finalDest = new byte[pos];
- System.arraycopy(dest, 0, finalDest, 0, pos);
- dest = finalDest;
- }
-
- return dest;
- }
-
- // Test case
- /*
- public static void main(String[] args) {
- for (int i = 0; i < args.length; i++) {
- try {
- System.out.println(args[i] + ":");
- SGIImage image = SGIImage.read(args[i]);
- System.out.println(image);
- BufferedImage img = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_4BYTE_ABGR);
- WritableRaster raster = img.getRaster();
- DataBufferByte db = (DataBufferByte) raster.getDataBuffer();
- byte[] src = image.getData();
- byte[] dest = db.getData();
- for (int j = 0; j < src.length; j += 4) {
- dest[j + 0] = src[j + 3];
- dest[j + 1] = src[j + 2];
- dest[j + 2] = src[j + 1];
- dest[j + 3] = src[j + 0];
- }
- // System.arraycopy(src, 0, dest, 0, src.length);
- ImageIcon icon = new ImageIcon(img);
- JLabel label = new JLabel();
- label.setIcon(icon);
- JFrame frame = new JFrame(args[i]);
- frame.getContentPane().add(label);
- frame.pack();
- frame.show();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }
- */
-}
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