diff options
Diffstat (limited to 'src/classes/com')
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/DDSReader.java | 508 | ||||
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/LEDataInputStream.java | 223 | ||||
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/SGIImage.java | 390 | ||||
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/TGAImage.java | 320 | ||||
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/Texture.java | 440 | ||||
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/TextureData.java | 447 | ||||
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/TextureIO.java | 794 | ||||
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/TextureProvider.java | 151 |
8 files changed, 3273 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/utils/DDSReader.java b/src/classes/com/sun/opengl/utils/DDSReader.java new file mode 100755 index 000000000..dbbf8e65b --- /dev/null +++ b/src/classes/com/sun/opengl/utils/DDSReader.java @@ -0,0 +1,508 @@ +/* + * 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 java.nio.*; +import java.nio.channels.*; + +/** A reader for DirectDraw Surface (.dds) files, which are used to + describe textures. These files can contain multiple mipmap levels + in one file. This reader is currently minimal and does not support + all of the possible file formats. */ + +public class DDSReader { + + /** Simple class describing images and data; does not encapsulate + image format information. User is responsible for transmitting + that information in another way. */ + + public static class ImageInfo { + private ByteBuffer data; + private int width; + private int height; + private boolean isCompressed; + private int compressionFormat; + + public ImageInfo(ByteBuffer data, int width, int height, boolean compressed, int compressionFormat) { + this.data = data; this.width = width; this.height = height; + this.isCompressed = compressed; this.compressionFormat = compressionFormat; + } + public int getWidth() { return width; } + public int getHeight() { return height; } + public ByteBuffer getData() { return data; } + public boolean isCompressed() { return isCompressed; } + public int getCompressionFormat() { + if (!isCompressed()) + throw new RuntimeException("Should not call unless compressed"); + return compressionFormat; + } + } + + private FileInputStream fis; + private FileChannel chan; + private ByteBuffer buf; + private Header header; + + // + // Selected bits in header flags + // + + public static final int DDSD_CAPS = 0x00000001; // Capacities are valid + public static final int DDSD_HEIGHT = 0x00000002; // Height is valid + public static final int DDSD_WIDTH = 0x00000004; // Width is valid + public static final int DDSD_PITCH = 0x00000008; // Pitch is valid + public static final int DDSD_BACKBUFFERCOUNT = 0x00000020; // Back buffer count is valid + public static final int DDSD_ZBUFFERBITDEPTH = 0x00000040; // Z-buffer bit depth is valid (shouldn't be used in DDSURFACEDESC2) + public static final int DDSD_ALPHABITDEPTH = 0x00000080; // Alpha bit depth is valid + public static final int DDSD_LPSURFACE = 0x00000800; // lpSurface is valid + public static final int DDSD_PIXELFORMAT = 0x00001000; // ddpfPixelFormat is valid + public static final int DDSD_MIPMAPCOUNT = 0x00020000; // Mip map count is valid + public static final int DDSD_LINEARSIZE = 0x00080000; // dwLinearSize is valid + public static final int DDSD_DEPTH = 0x00800000; // dwDepth is valid + + public static final int DDPF_ALPHAPIXELS = 0x00000001; // Alpha channel is present + public static final int DDPF_ALPHA = 0x00000002; // Only contains alpha information + public static final int DDPF_FOURCC = 0x00000004; // FourCC code is valid + public static final int DDPF_PALETTEINDEXED4 = 0x00000008; // Surface is 4-bit color indexed + public static final int DDPF_PALETTEINDEXEDTO8 = 0x00000010; // Surface is indexed into a palette which stores indices + // into the destination surface's 8-bit palette + public static final int DDPF_PALETTEINDEXED8 = 0x00000020; // Surface is 8-bit color indexed + public static final int DDPF_RGB = 0x00000040; // RGB data is present + public static final int DDPF_COMPRESSED = 0x00000080; // Surface will accept pixel data in the format specified + // and compress it during the write + public static final int DDPF_RGBTOYUV = 0x00000100; // Surface will accept RGB data and translate it during + // the write to YUV data. The format of the data to be written + // will be contained in the pixel format structure. The DDPF_RGB + // flag will be set. + public static final int DDPF_YUV = 0x00000200; // Pixel format is YUV - YUV data in pixel format struct is valid + public static final int DDPF_ZBUFFER = 0x00000400; // Pixel format is a z buffer only surface + public static final int DDPF_PALETTEINDEXED1 = 0x00000800; // Surface is 1-bit color indexed + public static final int DDPF_PALETTEINDEXED2 = 0x00001000; // Surface is 2-bit color indexed + public static final int DDPF_ZPIXELS = 0x00002000; // Surface contains Z information in the pixels + + // Selected bits in DDS capabilities flags + public static final int DDSCAPS_TEXTURE = 0x00001000; // Can be used as a texture + public static final int DDSCAPS_MIPMAP = 0x00400000; // Is one level of a mip-map + + // Known pixel formats + public static final int D3DFMT_UNKNOWN = 0; + public static final int D3DFMT_R8G8B8 = 20; + public static final int D3DFMT_A8R8G8B8 = 21; + public static final int D3DFMT_X8R8G8B8 = 22; + // The following are also valid FourCC codes + public static final int D3DFMT_DXT1 = 0x31545844; + public static final int D3DFMT_DXT2 = 0x32545844; + public static final int D3DFMT_DXT3 = 0x33545844; + public static final int D3DFMT_DXT4 = 0x34545844; + public static final int D3DFMT_DXT5 = 0x35545844; + + public void loadFile(String filename) throws IOException { + loadFile(new File(filename)); + } + + public void loadFile(File file) throws IOException { + fis = new FileInputStream(file); + chan = fis.getChannel(); + buf = chan.map(FileChannel.MapMode.READ_ONLY, + 0, (int) file.length()); + buf.order(ByteOrder.LITTLE_ENDIAN); + header = new Header(); + header.read(buf); + fixupHeader(); + } + + public void close() { + try { + chan.close(); + fis.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } + + /** Test for presence/absence of surface description flags (DDSD_*) */ + public boolean isSurfaceDescFlagSet(int flag) { + return ((header.flags & flag) != 0); + } + + /** Test for presence/absence of pixel format flags (DDPF_*) */ + public boolean isPixelFormatFlagSet(int flag) { + return ((header.pfFlags & flag) != 0); + } + + /** Gets the pixel format of this texture (D3DFMT_*) based on some + heuristics. Returns D3DFMT_UNKNOWN if could not recognize the + pixel format. */ + public int getPixelFormat() { + if (isCompressed()) { + return getCompressionFormat(); + } else if (isPixelFormatFlagSet(DDPF_RGB)) { + if (isPixelFormatFlagSet(DDPF_ALPHAPIXELS)) { + if (getDepth() == 32 && + header.pfRBitMask == 0x00FF0000 && + header.pfGBitMask == 0x0000FF00 && + header.pfBBitMask == 0x000000FF && + header.pfABitMask == 0xFF000000) { + return D3DFMT_A8R8G8B8; + } + } else { + if (getDepth() == 24 && + header.pfRBitMask == 0x00FF0000 && + header.pfGBitMask == 0x0000FF00 && + header.pfBBitMask == 0x000000FF) { + return D3DFMT_R8G8B8; + } else if (getDepth() == 32 && + header.pfRBitMask == 0x00FF0000 && + header.pfGBitMask == 0x0000FF00 && + header.pfBBitMask == 0x000000FF) { + return D3DFMT_X8R8G8B8; + } + } + } + + return D3DFMT_UNKNOWN; + } + + /** Indicates whether this texture is compressed. */ + public boolean isCompressed() { + return (isPixelFormatFlagSet(DDPF_FOURCC)); + } + + /** If this surface is compressed, returns the kind of compression + used (DXT1..DXT5). */ + public int getCompressionFormat() { + return header.pfFourCC; + } + + /** Width of the texture (or the top-most mipmap if mipmaps are + present) */ + public int getWidth() { + return header.width; + } + + /** Height of the texture (or the top-most mipmap if mipmaps are + present) */ + public int getHeight() { + return header.height; + } + + /** Total number of bits per pixel. Only valid if DDPF_RGB is + present. For A8R8G8B8, would be 32. */ + public int getDepth() { + return header.pfRGBBitCount; + } + + /** Number of mip maps in the texture */ + public int getNumMipMaps() { + if (!isSurfaceDescFlagSet(DDSD_MIPMAPCOUNT)) { + return 0; + } + return header.mipMapCountOrAux; + } + + /** Gets the <i>i</i>th mipmap data (0..getNumMipMaps() - 1) */ + public ImageInfo getMipMap(int map) { + if (getNumMipMaps() > 0 && + ((map < 0) || (map >= getNumMipMaps()))) { + throw new RuntimeException("Illegal mipmap number " + map + " (0.." + (getNumMipMaps() - 1) + ")"); + } + + // Figure out how far to seek + int seek = 4 + header.size; + for (int i = 0; i < map; i++) { + seek += mipMapSizeInBytes(i); + } + buf.limit(seek + mipMapSizeInBytes(map)); + buf.position(seek); + ByteBuffer next = buf.slice(); + buf.position(0); + buf.limit(buf.capacity()); + return new ImageInfo(next, mipMapWidth(map), mipMapHeight(map), isCompressed(), getCompressionFormat()); + } + + /** Returns an array of ImageInfos corresponding to all mipmap + levels of this DDS file. */ + public ImageInfo[] getAllMipMaps() { + int numLevels = getNumMipMaps(); + if (numLevels == 0) { + numLevels = 1; + } + ImageInfo[] result = new ImageInfo[numLevels]; + for (int i = 0; i < numLevels; i++) { + result[i] = getMipMap(i); + } + return result; + } + + /** Converts e.g. DXT1 compression format constant (see {@link + #getCompressionFormat}) into "DXT1". */ + public static String getCompressionFormatName(int compressionFormat) { + StringBuffer buf = new StringBuffer(); + for (int i = 0; i < 4; i++) { + char c = (char) (compressionFormat & 0xFF); + buf.append(c); + compressionFormat = compressionFormat >> 8; + } + return buf.toString(); + } + + public void debugPrint() { + PrintStream tty = System.err; + tty.println("Compressed texture: " + isCompressed()); + if (isCompressed()) { + int fmt = getCompressionFormat(); + String name = getCompressionFormatName(fmt); + tty.println("Compression format: 0x" + Integer.toHexString(fmt) + " (" + name + ")"); + } + tty.println("Width: " + header.width + " Height: " + header.height); + tty.println("header.pitchOrLinearSize: " + header.pitchOrLinearSize); + tty.println("header.pfRBitMask: 0x" + Integer.toHexString(header.pfRBitMask)); + tty.println("header.pfGBitMask: 0x" + Integer.toHexString(header.pfGBitMask)); + tty.println("header.pfBBitMask: 0x" + Integer.toHexString(header.pfBBitMask)); + tty.println("SurfaceDesc flags:"); + boolean recognizedAny = false; + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_CAPS, "DDSD_CAPS"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_HEIGHT, "DDSD_HEIGHT"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_WIDTH, "DDSD_WIDTH"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_PITCH, "DDSD_PITCH"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_BACKBUFFERCOUNT, "DDSD_BACKBUFFERCOUNT"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_ZBUFFERBITDEPTH, "DDSD_ZBUFFERBITDEPTH"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_ALPHABITDEPTH, "DDSD_ALPHABITDEPTH"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_LPSURFACE, "DDSD_LPSURFACE"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_PIXELFORMAT, "DDSD_PIXELFORMAT"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_MIPMAPCOUNT, "DDSD_MIPMAPCOUNT"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_LINEARSIZE, "DDSD_LINEARSIZE"); + recognizedAny |= printIfRecognized(tty, header.flags, DDSD_DEPTH, "DDSD_DEPTH"); + if (!recognizedAny) { + tty.println("(none)"); + } + tty.println("Raw SurfaceDesc flags: 0x" + Integer.toHexString(header.flags)); + tty.println("Pixel format flags:"); + recognizedAny = false; + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_ALPHAPIXELS, "DDPF_ALPHAPIXELS"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_ALPHA, "DDPF_ALPHA"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_FOURCC, "DDPF_FOURCC"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_PALETTEINDEXED4, "DDPF_PALETTEINDEXED4"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_PALETTEINDEXEDTO8, "DDPF_PALETTEINDEXEDTO8"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_PALETTEINDEXED8, "DDPF_PALETTEINDEXED8"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_RGB, "DDPF_RGB"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_COMPRESSED, "DDPF_COMPRESSED"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_RGBTOYUV, "DDPF_RGBTOYUV"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_YUV, "DDPF_YUV"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_ZBUFFER, "DDPF_ZBUFFER"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_PALETTEINDEXED1, "DDPF_PALETTEINDEXED1"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_PALETTEINDEXED2, "DDPF_PALETTEINDEXED2"); + recognizedAny |= printIfRecognized(tty, header.pfFlags, DDPF_ZPIXELS, "DDPF_ZPIXELS"); + if (!recognizedAny) { + tty.println("(none)"); + } + tty.println("Raw pixel format flags: 0x" + Integer.toHexString(header.pfFlags)); + tty.println("Depth: " + getDepth()); + tty.println("Number of mip maps: " + getNumMipMaps()); + int fmt = getPixelFormat(); + tty.print("Pixel format: "); + switch (fmt) { + case D3DFMT_R8G8B8: tty.println("D3DFMT_R8G8B8"); break; + case D3DFMT_A8R8G8B8: tty.println("D3DFMT_A8R8G8B8"); break; + case D3DFMT_X8R8G8B8: tty.println("D3DFMT_X8R8G8B8"); break; + case D3DFMT_DXT1: tty.println("D3DFMT_DXT1"); break; + case D3DFMT_DXT2: tty.println("D3DFMT_DXT2"); break; + case D3DFMT_DXT3: tty.println("D3DFMT_DXT3"); break; + case D3DFMT_DXT4: tty.println("D3DFMT_DXT4"); break; + case D3DFMT_DXT5: tty.println("D3DFMT_DXT5"); break; + case D3DFMT_UNKNOWN: tty.println("D3DFMT_UNKNOWN"); break; + default: tty.println("(unknown pixel format " + fmt + ")"); break; + } + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + + private static final int MAGIC = 0x20534444; + + static class Header { + int size; // size of the DDSURFACEDESC structure + int flags; // determines what fields are valid + int height; // height of surface to be created + int width; // width of input surface + int pitchOrLinearSize; + int backBufferCountOrDepth; + int mipMapCountOrAux; // number of mip-map levels requested (in this context) + int alphaBitDepth; // depth of alpha buffer requested + int reserved1; // reserved + int surface; // pointer to the associated surface memory + // NOTE: following two entries are from DDCOLORKEY data structure + // Are overlaid with color for empty cubemap faces (unused in this reader) + int colorSpaceLowValue; + int colorSpaceHighValue; + int destBltColorSpaceLowValue; + int destBltColorSpaceHighValue; + int srcOverlayColorSpaceLowValue; + int srcOverlayColorSpaceHighValue; + int srcBltColorSpaceLowValue; + int srcBltColorSpaceHighValue; + // NOTE: following entries are from DDPIXELFORMAT data structure + // Are overlaid with flexible vertex format description of vertex + // buffers (unused in this reader) + int pfSize; // size of DDPIXELFORMAT structure + int pfFlags; // pixel format flags + int pfFourCC; // (FOURCC code) + // Following five entries have multiple interpretations, not just + // RGBA (but that's all we support right now) + int pfRGBBitCount; // how many bits per pixel + int pfRBitMask; // mask for red bits + int pfGBitMask; // mask for green bits + int pfBBitMask; // mask for blue bits + int pfABitMask; // mask for alpha channel + int ddsCaps1; // Texture and mip-map flags + int ddsCaps2; // Advanced capabilities, not yet used + int ddsCapsReserved1; + int ddsCapsReserved2; + int textureStage; // stage in multitexture cascade + + void read(ByteBuffer buf) throws IOException { + int magic = buf.getInt(); + if (magic != MAGIC) { + throw new IOException("Incorrect magic number 0x" + + Integer.toHexString(magic) + + " (expected " + MAGIC + ")"); + } + + size = buf.getInt(); + flags = buf.getInt(); + height = buf.getInt(); + width = buf.getInt(); + pitchOrLinearSize = buf.getInt(); + backBufferCountOrDepth = buf.getInt(); + mipMapCountOrAux = buf.getInt(); + alphaBitDepth = buf.getInt(); + reserved1 = buf.getInt(); + surface = buf.getInt(); + colorSpaceLowValue = buf.getInt(); + colorSpaceHighValue = buf.getInt(); + destBltColorSpaceLowValue = buf.getInt(); + destBltColorSpaceHighValue = buf.getInt(); + srcOverlayColorSpaceLowValue = buf.getInt(); + srcOverlayColorSpaceHighValue = buf.getInt(); + srcBltColorSpaceLowValue = buf.getInt(); + srcBltColorSpaceHighValue = buf.getInt(); + pfSize = buf.getInt(); + pfFlags = buf.getInt(); + pfFourCC = buf.getInt(); + pfRGBBitCount = buf.getInt(); + pfRBitMask = buf.getInt(); + pfGBitMask = buf.getInt(); + pfBBitMask = buf.getInt(); + pfABitMask = buf.getInt(); + ddsCaps1 = buf.getInt(); + ddsCaps2 = buf.getInt(); + ddsCapsReserved1 = buf.getInt(); + ddsCapsReserved2 = buf.getInt(); + textureStage = buf.getInt(); + } + } + + // Microsoft doesn't follow their own specifications and the + // simplest conversion using the DxTex tool to e.g. a DXT3 texture + // results in an illegal .dds file without either DDSD_PITCH or + // DDSD_LINEARSIZE set in the header's flags. This code, adapted + // from the DevIL library, fixes up the header in these situations. + private void fixupHeader() { + if (isCompressed() && !isSurfaceDescFlagSet(DDSD_LINEARSIZE)) { + // Figure out how big the linear size should be + int depth = header.backBufferCountOrDepth; + if (depth == 0) { + depth = 1; + } + + int blockSize = ((getWidth() + 3)/4) * ((getHeight() + 3)/4) * ((depth + 3)/4); + switch (getCompressionFormat()) { + case D3DFMT_DXT1: blockSize *= 8; break; + default: blockSize *= 16; break; + } + + header.pitchOrLinearSize = blockSize; + header.flags |= DDSD_LINEARSIZE; + } + } + + private int mipMapWidth(int map) { + int width = getWidth(); + for (int i = 0; i < map; i++) { + width >>= 1; + } + return width; + } + + private int mipMapHeight(int map) { + int height = getHeight(); + for (int i = 0; i < map; i++) { + height >>= 1; + } + return height; + } + + private int mipMapSizeInBytes(int map) { + if (isCompressed()) { + if (!isSurfaceDescFlagSet(DDSD_LINEARSIZE)) { + throw new RuntimeException("Illegal compressed texture: DDSD_LINEARSIZE not specified in texture header"); + } + int bytes = header.pitchOrLinearSize; + for (int i = 0; i < map; i++) { + bytes >>= 2; + } + return bytes; + } else { + int width = mipMapWidth(map); + int height = mipMapHeight(map); + return width * height * (getDepth() / 8); + } + } + + private boolean printIfRecognized(PrintStream tty, int flags, int flag, String what) { + if ((flags & flag) != 0) { + tty.println(what); + return true; + } + return false; + } +} diff --git a/src/classes/com/sun/opengl/utils/LEDataInputStream.java b/src/classes/com/sun/opengl/utils/LEDataInputStream.java new file mode 100755 index 000000000..eb041c161 --- /dev/null +++ b/src/classes/com/sun/opengl/utils/LEDataInputStream.java @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2003 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.DataInput; +import java.io.DataInputStream; +import java.io.FilterInputStream; +import java.io.InputStream; +import java.io.FileInputStream; +import java.io.EOFException; +import java.io.IOException; + +/** + * Little Endian Data Input Stream. + * + * This class implements an input stream filter to allow reading + * of java native datatypes from an input stream which has those + * native datatypes stored in a little endian byte order.<p> + * + * This is the sister class of the DataInputStream which allows + * for reading of java native datatypes from an input stream with + * the datatypes stored in big endian byte order.<p> + * + * This class implements the minimum required and calls DataInputStream + * for some of the required methods for DataInput.<p> + * + * Not all methods are implemented due to lack of immediatte requirement + * for that functionality. It is not clear if it is ever going to be + * functionally required to be able to read UTF data in a LittleEndianManner<p> + * + * @author Robin Luiten + * @version 1.1 15/Dec/1997 + */ +class LEDataInputStream extends FilterInputStream implements DataInput +{ + /** + * To reuse some of the non endian dependent methods from + * DataInputStreams methods. + */ + DataInputStream dataIn; + + public LEDataInputStream(InputStream in) + { + super(in); + dataIn = new DataInputStream(in); + } + + public void close() throws IOException + { + dataIn.close(); // better close as we create it. + // this will close underlying as well. + } + + public synchronized final int read(byte b[]) throws IOException + { + return dataIn.read(b, 0, b.length); + } + + public synchronized final int read(byte b[], int off, int len) throws IOException + { + int rl = dataIn.read(b, off, len); + return rl; + } + + public final void readFully(byte b[]) throws IOException + { + dataIn.readFully(b, 0, b.length); + } + + public final void readFully(byte b[], int off, int len) throws IOException + { + dataIn.readFully(b, off, len); + } + + public final int skipBytes(int n) throws IOException + { + return dataIn.skipBytes(n); + } + + public final boolean readBoolean() throws IOException + { + int ch = dataIn.read(); + if (ch < 0) + throw new EOFException(); + return (ch != 0); + } + + public final byte readByte() throws IOException + { + int ch = dataIn.read(); + if (ch < 0) + throw new EOFException(); + return (byte)(ch); + } + + public final int readUnsignedByte() throws IOException + { + int ch = dataIn.read(); + if (ch < 0) + throw new EOFException(); + return ch; + } + + public final short readShort() throws IOException + { + int ch1 = dataIn.read(); + int ch2 = dataIn.read(); + if ((ch1 | ch2) < 0) + throw new EOFException(); + return (short)((ch1 << 0) + (ch2 << 8)); + } + + public final int readUnsignedShort() throws IOException + { + int ch1 = dataIn.read(); + int ch2 = dataIn.read(); + if ((ch1 | ch2) < 0) + throw new EOFException(); + return (ch1 << 0) + (ch2 << 8); + } + + public final char readChar() throws IOException + { + int ch1 = dataIn.read(); + int ch2 = dataIn.read(); + if ((ch1 | ch2) < 0) + throw new EOFException(); + return (char)((ch1 << 0) + (ch2 << 8)); + } + + public final int readInt() throws IOException + { + int ch1 = dataIn.read(); + int ch2 = dataIn.read(); + int ch3 = dataIn.read(); + int ch4 = dataIn.read(); + if ((ch1 | ch2 | ch3 | ch4) < 0) + throw new EOFException(); + return ((ch1 << 0) + (ch2 << 8) + (ch3 << 16) + (ch4 << 24)); + } + + public final long readLong() throws IOException + { + int i1 = readInt(); + int i2 = readInt(); + return ((long)(i1) & 0xFFFFFFFFL) + (i2 << 32); + } + + public final float readFloat() throws IOException + { + return Float.intBitsToFloat(readInt()); + } + + public final double readDouble() throws IOException + { + return Double.longBitsToDouble(readLong()); + } + + /** + * dont call this it is not implemented. + * @return empty new string + **/ + public final String readLine() throws IOException + { + return new String(); + } + + /** + * dont call this it is not implemented + * @return empty new string + **/ + public final String readUTF() throws IOException + { + return new String(); + } + + /** + * dont call this it is not implemented + * @return empty new string + **/ + public final static String readUTF(DataInput in) throws IOException + { + return new String(); + } +} + diff --git a/src/classes/com/sun/opengl/utils/SGIImage.java b/src/classes/com/sun/opengl/utils/SGIImage.java new file mode 100755 index 000000000..d115604b1 --- /dev/null +++ b/src/classes/com/sun/opengl/utils/SGIImage.java @@ -0,0 +1,390 @@ +/* + * 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 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(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; + } + + /** 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; + } + + 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 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; + } + + 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(); + } + } + } +} diff --git a/src/classes/com/sun/opengl/utils/TGAImage.java b/src/classes/com/sun/opengl/utils/TGAImage.java new file mode 100755 index 000000000..d5505afd5 --- /dev/null +++ b/src/classes/com/sun/opengl/utils/TGAImage.java @@ -0,0 +1,320 @@ +/* + * Copyright (c) 2003-2005 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.*; + +/** + * Targa image reader adapted from sources of the <a href = + * "http://java.sun.com/products/jimi/">Jimi</a> image I/O class library. + * + * <P> + * + * Image decoder for image data stored in TGA file format. + * Currently only the original TGA file format is supported. This is + * because the new TGA format has data at the end of the file, getting + * to the end of a file in an InputStream orient environment presents + * several difficulties which are avoided at the moment. + * + * <P> + * + * This is a simple decoder and is only setup to load a single image + * from the input stream + * + * <P> + * + * @author Robin Luiten + * @author Kenneth Russell + * @version $Revision$ + */ + +public class TGAImage { + private Header header; + private int format; + private byte[] data; + + private TGAImage(Header header) { + this.header = header; + } + + /** + * This class reads in all of the TGA image header in addition it also + * reads in the imageID field as it is convenient to handle that here. + * + * @author Robin Luiten + * @version 1.1 + */ + public static class Header { + /** Set of possible file format TGA types */ + public final static int TYPE_NEW = 0; + public final static int TYPE_OLD = 1; + public final static int TYPE_UNK = 2; // cant rewind stream so unknown for now. + + /** Set of possible image types in TGA file */ + public final static int NO_IMAGE = 0; // no image data + public final static int UCOLORMAPPED = 1; // uncompressed color mapped image + public final static int UTRUECOLOR = 2; // uncompressed true color image + public final static int UBLACKWHITE = 3; // uncompressed black and white image + public final static int COLORMAPPED = 9; // compressed color mapped image + public final static int TRUECOLOR = 10; // compressed true color image + public final static int BLACKWHITE = 11; // compressed black and white image + + /** Field image descriptor bitfield values definitions */ + public final static int ID_ATTRIBPERPIXEL = 0xF; + public final static int ID_LEFTTORIGHT = 0x10; + public final static int ID_TOPTOBOTTOM = 0x20; + public final static int ID_INTERLEAVE = 0xC0; + + /** Field image descriptor / interleave values */ + public final static int I_NOTINTERLEAVED = 0; + public final static int I_TWOWAY = 1; + public final static int I_FOURWAY = 2; + + /** Type of this TGA file format */ + private int tgaType; + + /** initial TGA image data fields */ + private int idLength; // byte value + private int colorMapType; // byte value + private int imageType; // byte value + + /** TGA image colour map fields */ + private int firstEntryIndex; + private int colorMapLength; + private byte colorMapEntrySize; + + /** TGA image specification fields */ + private int xOrigin; + private int yOrigin; + private int width; + private int height; + private byte pixelDepth; + private byte imageDescriptor; + + /** bitfields in imageDescriptor */ + private byte attribPerPixel; // how many attribute bits per pixel + private boolean leftToRight; // order of data on scan line + private boolean topToBottom; // order scan lines stored + private byte interleave; // how rows are stored in image data + + private byte[] imageIDbuf; + private String imageID; + + Header(LEDataInputStream in) throws IOException { + int ret; + + tgaType = TYPE_OLD; // dont try and get footer. + + // initial header fields + idLength = in.readUnsignedByte(); + colorMapType = in.readUnsignedByte(); + imageType = in.readUnsignedByte(); + + // color map header fields + firstEntryIndex = in.readUnsignedShort(); + colorMapLength = in.readUnsignedShort(); + colorMapEntrySize = in.readByte(); + + // TGA image specification fields + xOrigin = in.readUnsignedShort(); + yOrigin = in.readUnsignedShort(); + width = in.readUnsignedShort(); + height = in.readUnsignedShort(); + pixelDepth = in.readByte(); + imageDescriptor = in.readByte(); + + attribPerPixel = (byte)(imageDescriptor & ID_ATTRIBPERPIXEL); + leftToRight = (imageDescriptor & ID_LEFTTORIGHT) != 0; // not used ? + topToBottom = (imageDescriptor & ID_TOPTOBOTTOM) != 0; + interleave = (byte)((imageDescriptor & ID_INTERLEAVE) >> 6); + + if (idLength > 0) { + imageIDbuf = new byte[idLength]; + in.read(imageIDbuf, 0, idLength); + imageID = new String(imageIDbuf, "US-ASCII"); + } + } + + public int tgaType() { return tgaType; } + + /** initial TGA image data fields */ + public int idLength() { return idLength; } + public int colorMapType() { return colorMapType; } + public int imageType() { return imageType; } + + /** TGA image colour map fields */ + public int firstEntryIndex() { return firstEntryIndex; } + public int colorMapLength() { return colorMapLength; } + public byte colorMapEntrySize() { return colorMapEntrySize; } + + /** TGA image specification fields */ + public int xOrigin() { return xOrigin; } + public int yOrigin() { return yOrigin; } + public int width() { return width; } + public int height() { return height; } + public byte pixelDepth() { return pixelDepth; } + public byte imageDescriptor() { return imageDescriptor; } + + /** bitfields in imageDescriptor */ + public byte attribPerPixel() { return attribPerPixel; } + public boolean leftToRight() { return leftToRight; } + public boolean topToBottom() { return topToBottom; } + public byte interleave() { return interleave; } + + public byte[] imageIDbuf() { return imageIDbuf; } + public String imageID() { return imageID; } + + public String toString() { + return "TGA Header " + + " id length: " + idLength + + " color map type: "+ colorMapType + + " image type: "+ imageType + + " first entry index: " + firstEntryIndex + + " color map length: " + colorMapLength + + " color map entry size: " + colorMapEntrySize + + " x Origin: " + xOrigin + + " y Origin: " + yOrigin + + " width: "+ width + + " height: "+ height + + " pixel depth: "+ pixelDepth + + " image descriptor: "+ imageDescriptor + + (imageIDbuf == null ? "" : (" ID String: " + imageID)); + } + } + + + /** + * Identifies the image type of the tga image data and loads + * it into the JimiImage structure. This was taken from the + * prototype and modified for the new Jimi structure + */ + private void decodeImage(LEDataInputStream dIn) throws IOException { + switch (header.imageType()) { + case Header.UCOLORMAPPED: + throw new IOException("TGADecoder Uncompressed Colormapped images not supported"); + + case Header.UTRUECOLOR: // pixelDepth 15, 16, 24 and 32 + switch (header.pixelDepth) { + case 16: + throw new IOException("TGADecoder Compressed 16-bit True Color images not supported"); + + case 24: + case 32: + decodeRGBImageU24_32(dIn); + break; + } + break; + + case Header.UBLACKWHITE: + throw new IOException("TGADecoder Uncompressed Grayscale images not supported"); + + case Header.COLORMAPPED: + throw new IOException("TGADecoder Compressed Colormapped images not supported"); + + case Header.TRUECOLOR: + throw new IOException("TGADecoder Compressed True Color images not supported"); + + case Header.BLACKWHITE: + throw new IOException("TGADecoder Compressed Grayscale images not supported"); + } + } + + /** + * This assumes that the body is for a 24 bit or 32 bit for a + * RGB or ARGB image respectively. + */ + private void decodeRGBImageU24_32(LEDataInputStream dIn) throws IOException { + int i; // row index + int j; // column index + int y; // output row index + int raw; // index through the raw input buffer + int rawWidth = header.width() * (header.pixelDepth() / 8); + byte[] rawBuf = new byte[rawWidth]; + data = new byte[rawWidth * header.height()]; + + if (header.pixelDepth() == 24) { + format = GL.GL_BGR; + } else { + assert header.pixelDepth() == 32; + format = GL.GL_BGRA; + } + + for (i = 0; i < header.height(); ++i) { + dIn.readFully(rawBuf, 0, rawWidth); + + if (header.topToBottom) + y = header.height - i - 1; // range 0 to (header.height - 1) + else + y = i; + + System.arraycopy(rawBuf, 0, data, y * rawWidth, rawBuf.length); + } + } + + /** Returns the width of the image. */ + public int getWidth() { return header.width(); } + + /** Returns the height of the image. */ + public int getHeight() { return header.height(); } + + /** Returns the OpenGL format for this texture; e.g. GL.GL_BGR or GL.GL_BGRA. */ + public int getGLFormat() { 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; } + + /** Reads a Targa image from the specified file. */ + public static TGAImage read(String filename) throws IOException { + return read(new FileInputStream(filename)); + } + + /** Reads a Targa image from the specified InputStream. */ + public static TGAImage read(InputStream in) throws IOException { + LEDataInputStream dIn = new LEDataInputStream(new BufferedInputStream(in)); + + Header header = new Header(dIn); + TGAImage res = new TGAImage(header); + res.decodeImage(dIn); + return res; + } +} diff --git a/src/classes/com/sun/opengl/utils/Texture.java b/src/classes/com/sun/opengl/utils/Texture.java new file mode 100755 index 000000000..6c3fbd1c3 --- /dev/null +++ b/src/classes/com/sun/opengl/utils/Texture.java @@ -0,0 +1,440 @@ +/* + * 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. + */ + +package com.sun.opengl.utils; + +import java.awt.geom.*; + +import javax.media.opengl.*; +import com.sun.opengl.impl.*; + +/** + * Represents an OpenGL texture object. Contains convenience routines + * for enabling/disabling OpenGL texture state, binding this texture, + * and computing texture coordinates for both the entire image as well + * as a sub-image. + * + * <br> REMIND: document GL_TEXTURE_2D/GL_TEXTURE_RECTANGLE_ARB issues... + * <br> REMIND: translucent images will have premultiplied comps by default... + * + * @author Chris Campbell + * @author Kenneth Russell + */ +public class Texture { + /** The GL target type. */ + private int target; + /** The GL texture ID. */ + private int texID; + /** The width of the texture. */ + private int texWidth; + /** The height of the texture. */ + private int texHeight; + /** The width of the image. */ + private int imgWidth; + /** The height of the image. */ + private int imgHeight; + /** Indicates whether the TextureData requires a vertical flip of + the texture coords. */ + private boolean mustFlipVertically; + + /** The texture coordinate corresponding to the lower left corner + of the texture when properly oriented. */ + private Point2D lowerLeftTexCoord = new Point2D.Float(); + + /** The texture coordinate corresponding to the upper right corner + of the texture when properly oriented. */ + private Point2D upperRightTexCoord = new Point2D.Float(); + + private static final boolean DEBUG = Debug.debug("Texture"); + + // For now make Texture constructor package-private to limit the + // number of public APIs we commit to + Texture(TextureData data) throws GLException { + GL gl = getCurrentGL(); + + imgWidth = data.getWidth(); + imgHeight = data.getHeight(); + mustFlipVertically = data.getMustFlipVertically(); + + if ((isPowerOfTwo(imgWidth) && isPowerOfTwo(imgHeight)) || + gl.isExtensionAvailable("GL_ARB_texture_non_power_of_two")) { + if (DEBUG) { + if (isPowerOfTwo(imgWidth) && isPowerOfTwo(imgHeight)) { + System.err.println("Power-of-two texture"); + } else { + System.err.println("Using GL_ARB_texture_non_power_of_two"); + } + } + + texWidth = imgWidth; + texHeight = imgHeight; + target = GL.GL_TEXTURE_2D; + } else if (gl.isExtensionAvailable("GL_ARB_texture_rectangle")) { + if (DEBUG) { + System.err.println("Using GL_ARB_texture_rectangle"); + } + + texWidth = imgWidth; + texHeight = imgHeight; + target = GL.GL_TEXTURE_RECTANGLE_ARB; + } else { + if (DEBUG) { + System.err.println("Expanding texture to power-of-two dimensions"); + } + + if (data.getBorder() != 0) { + throw new RuntimeException("Scaling up a non-power-of-two texture which has a border won't work"); + } + texWidth = nextPowerOfTwo(imgWidth); + texHeight = nextPowerOfTwo(imgHeight); + target = GL.GL_TEXTURE_2D; + } + + // REMIND: let the user specify these, optionally + int minFilter = GL.GL_LINEAR; + int magFilter = GL.GL_LINEAR; + int wrapMode = GL.GL_CLAMP_TO_EDGE; + + texID = createTextureID(gl); + setImageSize(imgWidth, imgHeight); + gl.glBindTexture(target, texID); + gl.glTexImage2D(target, 0, data.getInternalFormat(), + texWidth, texHeight, data.getBorder(), + data.getPixelFormat(), data.getPixelType(), null); + + // REMIND: figure out what to do for GL_TEXTURE_RECTANGLE_ARB + if (target == GL.GL_TEXTURE_2D) { + gl.glTexParameteri(target, GL.GL_TEXTURE_MIN_FILTER, minFilter); + gl.glTexParameteri(target, GL.GL_TEXTURE_MAG_FILTER, magFilter); + gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_S, wrapMode); + gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_T, wrapMode); + } + + updateSubImage(data, 0, 0); + } + + /** + * Enables this texture's target (e.g., GL_TEXTURE_2D) in the + * current GL context's state. + * + * @throws GLException if no OpenGL context was current or if any + * OpenGL-related errors occurred + */ + public void enable() throws GLException { + getCurrentGL().glEnable(target); + } + + /** + * Disables this texture's target (e.g., GL_TEXTURE_2D) in the + * current GL context's state. + * + * @throws GLException if no OpenGL context was current or if any + * OpenGL-related errors occurred + */ + public void disable() throws GLException { + getCurrentGL().glDisable(target); + } + + /** + * Binds this texture to the current GL context. + * + * @throws GLException if no OpenGL context was current or if any + * OpenGL-related errors occurred + */ + public void bind() throws GLException { + getCurrentGL().glBindTexture(target, texID); + } + + /** + * Disposes the native resources used by this texture object. + * + * @throws GLException if no OpenGL context was current or if any + * OpenGL-related errors occurred + */ + public void dispose() throws GLException { + getCurrentGL().glDeleteTextures(1, new int[] {texID}, 0); + } + + /** + * Returns the OpenGL "target" of this texture. + * + * @return the OpenGL target of this texture + * @see javax.media.opengl.GL#GL_TEXTURE_2D + * @see javax.media.opengl.GL#GL_TEXTURE_RECTANGLE_ARB + */ + public int getTarget() { + return target; + } + + /** + * Returns the width of the texture. Note that the texture width will + * be greater than or equal to the width of the image contained within. + * + * @return the width of the texture + */ + public int getWidth() { + return texWidth; + } + + /** + * Returns the height of the texture. Note that the texture height will + * be greater than or equal to the height of the image contained within. + * + * @return the height of the texture + */ + public int getHeight() { + return texHeight; + } + + /** + * Returns the width of the image contained within this texture. + * + * @return the width of the image + */ + public int getImageWidth() { + return imgWidth; + } + + /** + * Returns the height of the image contained within this texture. + * + * @return the height of the image + */ + public int getImageHeight() { + return imgHeight; + } + + /** + * Returns the texture coordinate corresponding to the lower-left + * point of this texture when oriented properly. If the TextureData + * indicated that the texture coordinates must be flipped + * vertically, the returned Point will take that into account. + * + * @return the texture coordinate of the lower-left point of the + * texture + */ + public Point2D getImageLowerLeftTexCoord() { + return (Point2D) lowerLeftTexCoord.clone(); + } + + /** + * Returns the texture coordinate corresponding to the upper-right + * point of this texture when oriented properly. If the TextureData + * indicated that the texture coordinates must be flipped + * vertically, the returned Point will take that into account. + * + * @return the texture coordinates of the upper-right point of the + * texture + */ + public Point2D getImageUpperRightTexCoord() { + return (Point2D) upperRightTexCoord.clone(); + } + + + /** + * Returns the texture coordinate corresponding to the lower-left + * point of the specified sub-image of this texture when oriented + * properly. If the TextureData indicated that the texture + * coordinates must be flipped vertically, the returned Point will + * take that into account. + * + * @return the texture coordinate of the lower-left point of the + * texture + */ + public Point2D getSubImageLowerLeftTexCoord(int x1, int y1, int x2, int y2) { + if (target == GL.GL_TEXTURE_RECTANGLE_ARB) { + if (mustFlipVertically) { + return new Point2D.Float(x1, texHeight - y1); + } else { + return new Point2D.Float(x1, y1); + } + } else { + float tx = (float)x1 / (float)texWidth; + float ty = (float)y1 / (float)texHeight; + + if (mustFlipVertically) { + return new Point2D.Float(tx, 1.0f - ty); + } else { + return new Point2D.Float(tx, ty); + } + } + } + + /** + * Returns the texture coordinate corresponding to the upper-right + * point of the specified sub-image of this texture when oriented + * properly. If the TextureData indicated that the texture + * coordinates must be flipped vertically, the returned Point will + * take that into account. + * + * @return the texture coordinate of the upper-right point of the + * texture + */ + public Point2D getSubImageUpperRightTexCoord(int x1, int y1, int x2, int y2) { + if (target == GL.GL_TEXTURE_RECTANGLE_ARB) { + if (mustFlipVertically) { + return new Point2D.Float(x2, texHeight - y2); + } else { + return new Point2D.Float(x2, y2); + } + } else { + float tx = (float)x2 / (float)texWidth; + float ty = (float)y2 / (float)texHeight; + + if (mustFlipVertically) { + return new Point2D.Float(tx, 1.0f - ty); + } else { + return new Point2D.Float(tx, ty); + } + } + } + + /** + * Updates a subregion of the content area of this texture using the + * data in the given image. + * + * @param data the image data to be uploaded to this texture + * @param x the x offset (in pixels) relative to the lower-left corner + * of this texture + * @param y the y offset (in pixels) relative to the lower-left corner + * of this texture + * + * @throws GLException if no OpenGL context was current or if any + * OpenGL-related errors occurred + */ + public void updateSubImage(TextureData data, int x, int y) throws GLException { + GL gl = getCurrentGL(); + bind(); + if (data.isDataCompressed()) { + // FIXME: should test availability of appropriate texture + // compression extension here + gl.glCompressedTexSubImage2D(target, data.getMipmapLevel(), + x, y, data.getWidth(), data.getHeight(), + data.getInternalFormat(), data.getBuffer().remaining(), + data.getBuffer()); + } else { + int[] align = new int[1]; + gl.glGetIntegerv(GL.GL_UNPACK_ALIGNMENT, align, 0); // save alignment + gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, data.getAlignment()); + + gl.glTexSubImage2D(target, data.getMipmapLevel(), + x, y, data.getWidth(), data.getHeight(), + data.getPixelFormat(), data.getPixelType(), + data.getBuffer()); + gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, align[0]); // restore align + } + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + + /** + * Returns the current GL object. Throws GLException if no OpenGL + * context was current. + */ + private static GL getCurrentGL() throws GLException { + GLContext context = GLContext.getCurrent(); + if (context == null) { + throw new GLException("No OpenGL context current on current thread"); + } + return context.getGL(); + } + + /** + * Returns true if the given value is a power of two. + * + * @return true if the given value is a power of two, false otherwise + */ + private static boolean isPowerOfTwo(int val) { + return ((val & (val - 1)) == 0); + } + + /** + * Returns the nearest power of two that is larger than the given value. + * If the given value is already a power of two, this method will simply + * return that value. + * + * @param val the value + * @return the next power of two + */ + private static int nextPowerOfTwo(int val) { + int ret = 1; + while (ret < val) { + ret <<= 1; + } + return ret; + } + + /** + * Updates the actual image dimensions; usually only called from + * <code>updateImage</code>. + */ + private void setImageSize(int width, int height) { + imgWidth = width; + imgHeight = height; + if (target == GL.GL_TEXTURE_RECTANGLE_ARB) { + if (mustFlipVertically) { + lowerLeftTexCoord = new Point2D.Float(0, imgHeight); + upperRightTexCoord = new Point2D.Float(imgWidth, 0); + } else { + lowerLeftTexCoord = new Point2D.Float(0, 0); + upperRightTexCoord = new Point2D.Float(imgWidth, imgHeight); + } + } else { + if (mustFlipVertically) { + lowerLeftTexCoord = new Point2D.Float(0, (float) imgHeight / (float) texHeight); + upperRightTexCoord = new Point2D.Float((float) imgWidth / (float) texWidth, 0); + } else { + lowerLeftTexCoord = new Point2D.Float(0, 0); + upperRightTexCoord = new Point2D.Float((float) imgWidth / (float) texWidth, + (float) imgHeight / (float) texHeight); + } + } + } + + /** + * Creates a new texture ID. + * + * @param gl the GL object associated with the current OpenGL context + * @return a new texture ID + */ + private static int createTextureID(GL gl) { + int[] tmp = new int[1]; + gl.glGenTextures(1, tmp, 0); + return tmp[0]; + } +} diff --git a/src/classes/com/sun/opengl/utils/TextureData.java b/src/classes/com/sun/opengl/utils/TextureData.java new file mode 100755 index 000000000..d88a18233 --- /dev/null +++ b/src/classes/com/sun/opengl/utils/TextureData.java @@ -0,0 +1,447 @@ +/* + * 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. + */ + +package com.sun.opengl.utils; + +import java.awt.AlphaComposite; +import java.awt.Color; +import java.awt.Graphics2D; +import java.awt.Transparency; +import java.awt.color.*; +import java.awt.image.*; +import java.nio.*; + +import javax.media.opengl.*; + +/** + * Represents the data for an OpenGL texture. This is separated from + * the notion of a Texture to support things like streaming in of + * textures in a background thread without requiring an OpenGL context + * to be current on that thread. + * + * @author Chris Campbell + * @author Kenneth Russell + */ + +public class TextureData { + private int width; + private int height; + private int border; + private int pixelFormat; + private int pixelType; + private int internalFormat; // perhaps inferred from pixelFormat? + private int mipmapLevel; + private boolean dataIsCompressed; + private boolean mustFlipVertically; // Must flip texture coordinates + // vertically to get OpenGL output + // to look correct + private Buffer buffer; // the actual data + private Flusher flusher; + private int alignment; // 1, 2, or 4 bytes + + private static final ColorModel rgbaColorModel = + new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + new int[] {8, 8, 8, 8}, true, true, + Transparency.TRANSLUCENT, + DataBuffer.TYPE_BYTE); + private static final ColorModel rgbColorModel = + new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + new int[] {8, 8, 8, 0}, false, false, + Transparency.OPAQUE, + DataBuffer.TYPE_BYTE); + + /** + * Constructs a new TextureData object with the specified parameters + * and data contained in the given Buffer. The optional Flusher can + * be used to clean up native resources associated with this + * TextureData when processing is complete; for example, closing of + * memory-mapped files that might otherwise require a garbage + * collection to reclaim and close. + * + * @param mipmapLevel the mipmap level for the resulting texture + * this data represents (FIXME: needs + * rethinking, currently unused) + * @param internalFormat the OpenGL internal format for the + * resulting texture; must be specified, may + * not be 0 + * @param width the width in pixels of the texture + * @param height the height in pixels of the texture + * @param border the number of pixels of border this texture + * data has (0 or 1) + * @param pixelFormat the OpenGL pixel format for the + * resulting texture; must be specified, may + * not be 0 + * @param pixelType the OpenGL type of the pixels of the texture + * @param dataIsCompressed indicates whether the texture data is in + * compressed form + * (e.g. GL_COMPRESSED_RGB_S3TC_DXT1_EXT) + * @param mustFlipVertically indicates whether the texture + * coordinates must be flipped vertically + * in order to properly display the + * texture + * @param buffer the buffer containing the texture data + * @param flusher optional flusher to perform cleanup tasks + * upon call to flush() + */ + public TextureData(int mipmapLevel, + int internalFormat, + int width, + int height, + int border, + int pixelFormat, + int pixelType, + boolean dataIsCompressed, + boolean mustFlipVertically, + Buffer buffer, + Flusher flusher) { + this.width = width; + this.height = height; + this.border = border; + this.pixelFormat = pixelFormat; + this.pixelType = pixelType; + this.internalFormat = internalFormat; + this.mipmapLevel = mipmapLevel; + this.dataIsCompressed = dataIsCompressed; + this.mustFlipVertically = mustFlipVertically; + this.buffer = buffer; + this.flusher = flusher; + alignment = 1; // FIXME: is this correct enough in all situations? + } + + /** + * Constructs a new TextureData object with the specified parameters + * and data contained in the given BufferedImage. + * + * @param mipmapLevel the mipmap level for the resulting texture + * this data represents (FIXME: needs + * rethinking, currently unused) + * @param internalFormat the OpenGL internal format for the + * resulting texture; may be 0, in which case + * it is inferred from the image's type + * @param pixelFormat the OpenGL internal format for the + * resulting texture; may be 0, in which case + * it is inferred from the image's type (note: + * this argument is currently always ignored) + * @param image the image containing the texture data + */ + public TextureData(int mipmapLevel, + int internalFormat, + int pixelFormat, + BufferedImage image) { + if (internalFormat == 0) { + this.internalFormat = image.getColorModel().hasAlpha() ? GL.GL_RGBA : GL.GL_RGB; + } else { + this.internalFormat = internalFormat; + } + createFromImage(image); + this.mipmapLevel = mipmapLevel; + } + + /** Returns the width in pixels of the texture data. */ + public int getWidth() { return width; } + /** Returns the height in pixels of the texture data. */ + public int getHeight() { return height; } + /** Returns the border in pixels of the texture data. */ + public int getBorder() { return border; } + /** Returns the intended OpenGL pixel format of the texture data. */ + public int getPixelFormat() { return pixelFormat; } + /** Returns the intended OpenGL pixel type of the texture data. */ + public int getPixelType() { return pixelType; } + /** Returns the intended OpenGL internal format of the texture data. */ + public int getInternalFormat() { return internalFormat; } + /** Returns the intended mipmap level of the texture data. */ + public int getMipmapLevel() { return mipmapLevel; } + /** Indicates whether the texture data is in compressed form. */ + public boolean isDataCompressed() { return dataIsCompressed; } + /** Indicates whether the texture coordinates must be flipped + vertically for proper display. */ + public boolean getMustFlipVertically() { return mustFlipVertically; } + /** Returns the texture data. */ + public Buffer getBuffer() { return buffer; } + /** Returns the required byte alignment for the texture data. */ + public int getAlignment() { return alignment; } + + /** Sets the width in pixels of the texture data. */ + public void setWidth(int width) { this.width = width; } + /** Sets the height in pixels of the texture data. */ + public void setHeight(int height) { this.height = height; } + /** Sets the border in pixels of the texture data. */ + public void setBorder(int border) { this.border = border; } + /** Sets the intended OpenGL pixel format of the texture data. */ + public void setPixelFormat(int pixelFormat) { this.pixelFormat = pixelFormat; } + /** Sets the intended OpenGL pixel type of the texture data. */ + public void setPixelType(int pixelType) { this.pixelType = pixelType; } + /** Sets the intended OpenGL internal format of the texture data. */ + public void setInternalFormat(int internalFormat) { this.internalFormat = internalFormat; } + /** Sets the intended mipmap level of the texture data. */ + public void setMipmapLevel(int mipmapLevel) { this.mipmapLevel = mipmapLevel; } + /** Sets whether the texture data is in compressed form. */ + public void setIsDataCompressed(boolean compressed) { this.dataIsCompressed = compressed; } + /** Sets whether the texture coordinates must be flipped vertically + for proper display. */ + public void setMustFlipVertically(boolean mustFlipVertically) { this.mustFlipVertically = mustFlipVertically; } + /** Sets the texture data. */ + public void setBuffer(Buffer buffer) { this.buffer = buffer; } + /** Sets the required byte alignment for the texture data. */ + public void setAlignment(int alignment) { this.alignment = alignment; } + + /** Flushes resources associated with this TextureData by calling + Flusher.flush(). */ + public void flush() { + if (flusher != null) { + flusher.flush(); + flusher = null; + } + } + + /** Defines a callback mechanism to allow the user to explicitly + deallocate native resources (memory-mapped files, etc.) + associated with a particular TextureData. */ + public static interface Flusher { + /** Flushes any native resources associated with this + TextureData. */ + public void flush(); + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + + private void createNIOBufferFromImage(BufferedImage image, boolean flipVertically) { + if (flipVertically) { + WritableRaster raster = image.getRaster(); + Object scanline1 = null; + Object scanline2 = null; + + for (int i = 0; i < image.getHeight() / 2; i++) { + scanline1 = raster.getDataElements(0, i, image.getWidth(), 1, scanline1); + scanline2 = raster.getDataElements(0, image.getHeight() - i - 1, image.getWidth(), 1, scanline2); + raster.setDataElements(0, i, image.getWidth(), 1, scanline2); + raster.setDataElements(0, image.getHeight() - i - 1, image.getWidth(), 1, scanline1); + } + } + + // + // Note: Grabbing the DataBuffer will defeat Java2D's image + // management mechanism (as of JDK 5/6, at least). This shouldn't + // be a problem for most JOGL apps, but those that try to upload + // the image into an OpenGL texture and then use the same image in + // Java2D rendering might find the 2D rendering is not as fast as + // it could be. + // + + // Allow previously-selected pixelType (if any) to override that + // we can infer from the DataBuffer + DataBuffer data = image.getRaster().getDataBuffer(); + if (data instanceof DataBufferByte) { + if (pixelType == 0) pixelType = GL.GL_UNSIGNED_BYTE; + buffer = ByteBuffer.wrap(((DataBufferByte) data).getData()); + } else if (data instanceof DataBufferDouble) { + throw new RuntimeException("DataBufferDouble rasters not supported by OpenGL"); + } else if (data instanceof DataBufferFloat) { + if (pixelType == 0) pixelType = GL.GL_FLOAT; + buffer = FloatBuffer.wrap(((DataBufferFloat) data).getData()); + } else if (data instanceof DataBufferInt) { + // FIXME: should we support signed ints? + if (pixelType == 0) pixelType = GL.GL_UNSIGNED_INT; + buffer = IntBuffer.wrap(((DataBufferInt) data).getData()); + } else if (data instanceof DataBufferShort) { + if (pixelType == 0) pixelType = GL.GL_SHORT; + buffer = ShortBuffer.wrap(((DataBufferShort) data).getData()); + } else if (data instanceof DataBufferUShort) { + if (pixelType == 0) pixelType = GL.GL_UNSIGNED_SHORT; + buffer = ShortBuffer.wrap(((DataBufferShort) data).getData()); + } else { + throw new RuntimeException("Unexpected DataBuffer type?"); + } + } + + private void createFromImage(BufferedImage image) { + pixelType = 0; // Determine from image + + width = image.getWidth(); + height = image.getHeight(); + + switch (image.getType()) { + case BufferedImage.TYPE_INT_RGB: + pixelFormat = GL.GL_BGRA; + pixelType = GL.GL_UNSIGNED_INT_8_8_8_8_REV; + alignment = 4; + break; + case BufferedImage.TYPE_INT_ARGB_PRE: + pixelFormat = GL.GL_BGRA; + pixelType = GL.GL_UNSIGNED_INT_8_8_8_8_REV; + alignment = 4; + break; + case BufferedImage.TYPE_INT_BGR: + pixelFormat = GL.GL_RGBA; + pixelType = GL.GL_UNSIGNED_INT_8_8_8_8_REV; + alignment = 4; + break; + case BufferedImage.TYPE_3BYTE_BGR: + { + Raster raster = image.getRaster(); + ComponentSampleModel csm = + (ComponentSampleModel)raster.getSampleModel(); + // we can pass the image data directly to OpenGL only if + // the raster is tightly packed (i.e. there is no extra + // space at the end of each scanline) + if ((csm.getScanlineStride() / 3) == csm.getWidth()) { + pixelFormat = GL.GL_BGR; + pixelType = GL.GL_UNSIGNED_BYTE; + alignment = 1; + } else { + createFromCustom(image); + return; + } + } + break; + case BufferedImage.TYPE_4BYTE_ABGR_PRE: + { + Raster raster = image.getRaster(); + ComponentSampleModel csm = + (ComponentSampleModel)raster.getSampleModel(); + // we can pass the image data directly to OpenGL only if + // the raster is tightly packed (i.e. there is no extra + // space at the end of each scanline) and only if the + // GL_EXT_abgr extension is present + + // FIXME: with the way this is currently organized we can't + // probe for the existence of the GL_EXT_abgr extension + // here; disable this code path for now + if (((csm.getScanlineStride() / 4) == csm.getWidth()) && + /* gl.isExtensionAvailable("GL_EXT_abgr") */ false) + { + pixelFormat = GL.GL_ABGR_EXT; + pixelType = GL.GL_UNSIGNED_BYTE; + alignment = 4; + } else { + createFromCustom(image); + return; + } + } + break; + case BufferedImage.TYPE_USHORT_565_RGB: + pixelFormat = GL.GL_RGB; + pixelType = GL.GL_UNSIGNED_SHORT_5_6_5; + alignment = 2; + break; + case BufferedImage.TYPE_USHORT_555_RGB: + pixelFormat = GL.GL_BGRA; + pixelType = GL.GL_UNSIGNED_SHORT_1_5_5_5_REV; + alignment = 2; + break; + case BufferedImage.TYPE_BYTE_GRAY: + pixelFormat = GL.GL_LUMINANCE; + pixelType = GL.GL_UNSIGNED_BYTE; + alignment = 1; + break; + case BufferedImage.TYPE_USHORT_GRAY: + pixelFormat = GL.GL_LUMINANCE; + pixelType = GL.GL_UNSIGNED_SHORT; + alignment = 2; + break; + case BufferedImage.TYPE_INT_ARGB: + case BufferedImage.TYPE_4BYTE_ABGR: + case BufferedImage.TYPE_BYTE_BINARY: + case BufferedImage.TYPE_BYTE_INDEXED: + case BufferedImage.TYPE_CUSTOM: + default: + ColorModel cm = image.getColorModel(); + if (cm.equals(rgbColorModel)) { + pixelFormat = GL.GL_RGB; + pixelType = GL.GL_UNSIGNED_BYTE; + alignment = 1; + } else if (cm.equals(rgbaColorModel)) { + pixelFormat = GL.GL_RGBA; + pixelType = GL.GL_UNSIGNED_BYTE; + alignment = 4; + } else { + createFromCustom(image); + return; + } + break; + } + + createNIOBufferFromImage(image, true); + } + + private void createFromCustom(BufferedImage image) { + int width = image.getWidth(); + int height = image.getHeight(); + + // create a temporary image that is compatible with OpenGL + boolean hasAlpha = image.getColorModel().hasAlpha(); + ColorModel cm = null; + int dataBufferType = image.getRaster().getDataBuffer().getDataType(); + if (dataBufferType == DataBuffer.TYPE_BYTE) { + cm = hasAlpha ? rgbaColorModel : rgbColorModel; + } else { + if (hasAlpha) { + cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + null, true, true, + Transparency.TRANSLUCENT, + dataBufferType); + } else { + cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), + null, false, false, + Transparency.OPAQUE, + dataBufferType); + } + } + + boolean premult = cm.isAlphaPremultiplied(); + WritableRaster raster = + cm.createCompatibleWritableRaster(width, height); + BufferedImage texImage = new BufferedImage(cm, raster, premult, null); + + // copy the source image into the temporary image + Graphics2D g = texImage.createGraphics(); + g.setComposite(AlphaComposite.Src); + // Flip image vertically as long as we're at it + g.drawImage(image, + 0, height, width, 0, + 0, 0, width, height, + Color.BLACK, + null); + g.dispose(); + + // Wrap the buffer from the temporary image + createNIOBufferFromImage(texImage, false); + pixelFormat = hasAlpha ? GL.GL_RGBA : GL.GL_RGB; + alignment = 1; // FIXME: do we need better? + } +} diff --git a/src/classes/com/sun/opengl/utils/TextureIO.java b/src/classes/com/sun/opengl/utils/TextureIO.java new file mode 100755 index 000000000..c39cf65e1 --- /dev/null +++ b/src/classes/com/sun/opengl/utils/TextureIO.java @@ -0,0 +1,794 @@ +/* + * 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.awt.image.*; +import java.io.*; +import java.net.*; +import java.nio.*; +import java.util.*; +import javax.imageio.*; + +import javax.media.opengl.*; + +/** <P> Provides input and output facilities for both loading OpenGL + textures from disk and streams as well as writing textures already + in memory back to disk. </P> + + <P> The TextureIO class supports an arbitrary number of plug-in + TextureProviders which know how to produce TextureData objects + from files, InputStreams and URLs. The TextureData class + represents the raw data of the texture before it has been + converted to an OpenGL texture object. The Texture class + represents the OpenGL texture object and provides easy facilities + for using the texture. </P> + + <P> There are several built-in TextureProviders supplied with the + TextureIO implementation. The most basic provider uses the + platform's Image I/O facilities to read in a BufferedImage and + convert it to a texture. This is the baseline provider and is + registered so that it is the last one consulted. All others are + asked first to open a given file. </P> + + <P> There are three other providers registered by default as of + the time of this writing. One handles SGI RGB (".sgi", ".rgb") + images from both files and streams. One handles DirectDraw Surface + (".dds") images read from files, though can not read these images + from streams. One handles Targa (".tga") images read from both + files and streams. These providers are executed in an arbitrary + order. Some of these providers require the file's suffix to either + be specified via the newTextureData methods or for the file to be + named with the appropriate suffix. In general a file suffix should + be provided to the newTexture and newTextureData methods if at all + possible. </P> + + <P> Note that additional TextureProviders, if reading images from + InputStreams, must use the mark()/reset() methods on InputStream + when probing for e.g. magic numbers at the head of the file to + make sure not to disturb the state of the InputStream for + downstream TextureProviders. </P> +*/ + +public class TextureIO { + /** Constant which can be used as a file suffix to indicate a + DirectDraw Surface file. */ + public static final String DDS = "dds"; + + /** Constant which can be used as a file suffix to indicate an SGI + RGB file. */ + public static final String SGI = "sgi"; + + /** Constant which can be used as a file suffix to indicate an SGI + RGB file. */ + public static final String SGI_RGB = "rgb"; + + /** Constant which can be used as a file suffix to indicate a GIF + file. */ + public static final String GIF = "gif"; + + /** Constant which can be used as a file suffix to indicate a JPEG + file. */ + public static final String JPG = "jpg"; + + /** Constant which can be used as a file suffix to indicate a PNG + file. */ + public static final String PNG = "png"; + + /** Constant which can be used as a file suffix to indicate a Targa + file. */ + public static final String TGA = "tga"; + + /** Constant which can be used as a file suffix to indicate a TIFF + file. */ + public static final String TIFF = "tiff"; + + //---------------------------------------------------------------------- + // methods that *do not* require a current context + // These methods assume RGB or RGBA textures. + // Some texture providers may not recognize the file format unless + // the fileSuffix is specified, so it is strongly recommended to + // specify it wherever it is known. + // Some texture providers may also only support one kind of input, + // i.e., reading from a file as opposed to a stream. + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given file. Does no OpenGL work. + * + * @param file the file from which to read the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @param fileSuffix the suffix of the file name to be used as a + * hint of the file format to the underlying + * texture provider, or null if none and should be + * auto-detected (some texture providers do not + * support this) + * @return the texture data from the file, or null if none of the + * registered texture providers could read the file + * @throws IOException if an error occurred while reading the file + */ + public static TextureData newTextureData(File file, + int mipmapLevel, + String fileSuffix) throws IOException { + return newTextureDataImpl(file, mipmapLevel, 0, 0, fileSuffix); + } + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given stream. Does no OpenGL work. + * + * @param stream the stream from which to read the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @param fileSuffix the suffix of the file name to be used as a + * hint of the file format to the underlying + * texture provider, or null if none and should be + * auto-detected (some texture providers do not + * support this) + * @return the texture data from the stream, or null if none of the + * registered texture providers could read the stream + * @throws IOException if an error occurred while reading the stream + */ + public static TextureData newTextureData(InputStream stream, + int mipmapLevel, + String fileSuffix) throws IOException { + return newTextureDataImpl(stream, mipmapLevel, 0, 0, fileSuffix); + } + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given URL. Does no OpenGL work. + * + * @param url the URL from which to read the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @param fileSuffix the suffix of the file name to be used as a + * hint of the file format to the underlying + * texture provider, or null if none and should be + * auto-detected (some texture providers do not + * support this) + * @return the texture data from the URL, or null if none of the + * registered texture providers could read the URL + * @throws IOException if an error occurred while reading the URL + */ + public static TextureData newTextureData(URL url, + int mipmapLevel, + String fileSuffix) throws IOException { + return newTextureDataImpl(url, mipmapLevel, 0, 0, fileSuffix); + } + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given BufferedImage. Does no OpenGL work. + * + * @param image the BufferedImage containing the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @return the texture data from the image + */ + public static TextureData newTextureData(BufferedImage image, + int mipmapLevel) { + return newTextureDataImpl(image, mipmapLevel, 0, 0); + } + + //---------------------------------------------------------------------- + // These methods make no assumption about the OpenGL internal format + // or pixel format of the texture; they must be specified by the + // user. It is not allowed to supply 0 (indicating no preference) + // for either the internalFormat or the pixelFormat; + // IllegalArgumentException will be thrown in this case. + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given file, using the specified OpenGL + * internal format and pixel format for the texture which will + * eventually result. The internalFormat and pixelFormat must be + * specified and may not be zero; to use default values, use the + * variant of this method which does not take these arguments. Does + * no OpenGL work. + * + * @param file the file from which to read the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @param internalFormat the OpenGL internal format of the texture + * which will eventually result from the TextureData + * @param pixelFormat the OpenGL pixel format of the texture + * which will eventually result from the TextureData + * @param fileSuffix the suffix of the file name to be used as a + * hint of the file format to the underlying + * texture provider, or null if none and should be + * auto-detected (some texture providers do not + * support this) + * @return the texture data from the file, or null if none of the + * registered texture providers could read the file + * @throws IllegalArgumentException if either internalFormat or + * pixelFormat was 0 + * @throws IOException if an error occurred while reading the file + */ + public static TextureData newTextureData(File file, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException, IllegalArgumentException { + if ((internalFormat == 0) || (pixelFormat == 0)) { + throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); + } + + return newTextureDataImpl(file, mipmapLevel, internalFormat, pixelFormat, fileSuffix); + } + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given stream, using the specified OpenGL + * internal format and pixel format for the texture which will + * eventually result. The internalFormat and pixelFormat must be + * specified and may not be zero; to use default values, use the + * variant of this method which does not take these arguments. Does + * no OpenGL work. + * + * @param stream the stream from which to read the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @param internalFormat the OpenGL internal format of the texture + * which will eventually result from the TextureData + * @param pixelFormat the OpenGL pixel format of the texture + * which will eventually result from the TextureData + * @param fileSuffix the suffix of the file name to be used as a + * hint of the file format to the underlying + * texture provider, or null if none and should be + * auto-detected (some texture providers do not + * support this) + * @return the texture data from the stream, or null if none of the + * registered texture providers could read the stream + * @throws IllegalArgumentException if either internalFormat or + * pixelFormat was 0 + * @throws IOException if an error occurred while reading the stream + */ + public static TextureData newTextureData(InputStream stream, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException, IllegalArgumentException { + if ((internalFormat == 0) || (pixelFormat == 0)) { + throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); + } + + return newTextureDataImpl(stream, mipmapLevel, internalFormat, pixelFormat, fileSuffix); + } + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given URL, using the specified OpenGL + * internal format and pixel format for the texture which will + * eventually result. The internalFormat and pixelFormat must be + * specified and may not be zero; to use default values, use the + * variant of this method which does not take these arguments. Does + * no OpenGL work. + * + * @param url the URL from which to read the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @param internalFormat the OpenGL internal format of the texture + * which will eventually result from the TextureData + * @param pixelFormat the OpenGL pixel format of the texture + * which will eventually result from the TextureData + * @param fileSuffix the suffix of the file name to be used as a + * hint of the file format to the underlying + * texture provider, or null if none and should be + * auto-detected (some texture providers do not + * support this) + * @return the texture data from the URL, or null if none of the + * registered texture providers could read the URL + * @throws IllegalArgumentException if either internalFormat or + * pixelFormat was 0 + * @throws IOException if an error occurred while reading the URL + */ + public static TextureData newTextureData(URL url, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException, IllegalArgumentException { + if ((internalFormat == 0) || (pixelFormat == 0)) { + throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); + } + + return newTextureDataImpl(url, mipmapLevel, internalFormat, pixelFormat, fileSuffix); + } + + /** + * Creates a TextureData representing the specified mipmap level of + * a texture from the given BufferedImage, using the specified + * OpenGL internal format and pixel format for the texture which + * will eventually result. The internalFormat and pixelFormat must + * be specified and may not be zero; to use default values, use the + * variant of this method which does not take these arguments. Does + * no OpenGL work. + * + * @param image the BufferedImage containing the texture data + * @param mipmapLevel the mipmap level this data represents (FIXME: + * not currently used, needs to be rethought) + * @param internalFormat the OpenGL internal format of the texture + * which will eventually result from the TextureData + * @param pixelFormat the OpenGL pixel format of the texture + * which will eventually result from the TextureData + * @return the texture data from the image + * @throws IllegalArgumentException if either internalFormat or + * pixelFormat was 0 + */ + public static TextureData newTextureData(BufferedImage image, + int mipmapLevel, + int internalFormat, + int pixelFormat) throws IllegalArgumentException { + if ((internalFormat == 0) || (pixelFormat == 0)) { + throw new IllegalArgumentException("internalFormat and pixelFormat must be non-zero"); + } + + return newTextureDataImpl(image, mipmapLevel, internalFormat, pixelFormat); + } + + //---------------------------------------------------------------------- + // methods that *do* require a current context + // + + /** + * Creates an OpenGL texture object from the specified TextureData + * using the current OpenGL context. + * + * @param data the texture data to turn into an OpenGL texture + * @throws GLException if no OpenGL context is current or if an + * OpenGL error occurred + */ + public static Texture newTexture(TextureData data) throws GLException { + if (data == null) { + return null; + } + return new Texture(data); + } + + /** + * Creates an OpenGL texture object from the specified file using + * the current OpenGL context. + * + * @param file the file from which to read the texture data + * @throws IOException if an error occurred while reading the file + * @throws GLException if no OpenGL context is current or if an + * OpenGL error occurred + */ + public static Texture newTexture(File file) throws IOException, GLException { + TextureData data = newTextureData(file, 0, getFileSuffix(file)); + Texture texture = newTexture(data); + data.flush(); + return texture; + } + + /** + * Creates an OpenGL texture object from the specified stream using + * the current OpenGL context. + * + * @param stream the stream from which to read the texture data + * @throws IOException if an error occurred while reading the stream + * @throws GLException if no OpenGL context is current or if an + * OpenGL error occurred + */ + public static Texture newTexture(InputStream stream) throws IOException, GLException { + TextureData data = newTextureData(stream, 0, null); + Texture texture = newTexture(data); + data.flush(); + return texture; + } + + /** + * Creates an OpenGL texture object from the specified URL using + * the current OpenGL context. + * + * @param url the URL from which to read the texture data + * @throws IOException if an error occurred while reading the URL + * @throws GLException if no OpenGL context is current or if an + * OpenGL error occurred + */ + public static Texture newTexture(URL url) throws IOException, GLException { + TextureData data = newTextureData(url, 0, null); + Texture texture = newTexture(data); + data.flush(); + return texture; + } + + /** + * Creates an OpenGL texture object from the specified BufferedImage + * using the current OpenGL context. + * + * @param image the BufferedImage from which to read the texture data + * @throws GLException if no OpenGL context is current or if an + * OpenGL error occurred + */ + public static Texture newTexture(BufferedImage image) throws GLException { + TextureData data = newTextureData(image, 0); + Texture texture = newTexture(data); + data.flush(); + return texture; + } + + // FIXME: add texture writing capabilities + // public void writeTextureToFile(Texture texture, File file, boolean saveUncompressed) throws IOException, GLException; + + //---------------------------------------------------------------------- + // SPI support + // + + /** Adds a TextureProvider to support reading of a new file + format. */ + public static void addTextureProvider(TextureProvider provider) { + // Must always add at the front so the ImageIO provider is last, + // so we don't accidentally use it instead of a user's possibly + // more optimal provider + textureProviders.add(0, provider); + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + + private static List/*<TextureProvider>*/ textureProviders = new ArrayList/*<TextureProvider>*/(); + + static { + // ImageIO provider, the fall-back, must be the first one added + addTextureProvider(new IIOTextureProvider()); + + // Other special-case providers + addTextureProvider(new DDSTextureProvider()); + addTextureProvider(new SGITextureProvider()); + addTextureProvider(new TGATextureProvider()); + } + + // Implementation methods + private static TextureData newTextureDataImpl(File file, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + for (Iterator iter = textureProviders.iterator(); iter.hasNext(); ) { + TextureProvider provider = (TextureProvider) iter.next(); + TextureData data = provider.newTextureData(file, + mipmapLevel, + internalFormat, + pixelFormat, + fileSuffix); + if (data != null) { + return data; + } + } + return null; + } + + private static TextureData newTextureDataImpl(InputStream stream, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + for (Iterator iter = textureProviders.iterator(); iter.hasNext(); ) { + TextureProvider provider = (TextureProvider) iter.next(); + TextureData data = provider.newTextureData(stream, + mipmapLevel, + internalFormat, + pixelFormat, + fileSuffix); + if (data != null) { + return data; + } + } + + return null; + } + + private static TextureData newTextureDataImpl(URL url, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + for (Iterator iter = textureProviders.iterator(); iter.hasNext(); ) { + TextureProvider provider = (TextureProvider) iter.next(); + TextureData data = provider.newTextureData(url, + mipmapLevel, + internalFormat, + pixelFormat, + fileSuffix); + if (data != null) { + return data; + } + } + + return null; + } + + private static TextureData newTextureDataImpl(BufferedImage image, + int mipmapLevel, + int internalFormat, + int pixelFormat) { + return new TextureData(mipmapLevel, internalFormat, pixelFormat, image); + } + + //---------------------------------------------------------------------- + // Base provider - used last + static class IIOTextureProvider implements TextureProvider { + public TextureData newTextureData(File file, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + BufferedImage img = ImageIO.read(file); + if (img == null) { + return null; + } + return new TextureData(mipmapLevel, internalFormat, pixelFormat, img); + } + + public TextureData newTextureData(InputStream stream, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + BufferedImage img = ImageIO.read(stream); + if (img == null) { + return null; + } + return new TextureData(mipmapLevel, internalFormat, pixelFormat, img); + } + + public TextureData newTextureData(URL url, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + InputStream stream = url.openStream(); + try { + return newTextureData(stream, mipmapLevel, internalFormat, pixelFormat, fileSuffix); + } finally { + stream.close(); + } + } + } + + //---------------------------------------------------------------------- + // DDS provider -- supports files only for now + static class DDSTextureProvider implements TextureProvider { + public TextureData newTextureData(File file, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + if (DDS.equals(fileSuffix) || + DDS.equals(getFileSuffix(file))) { + final DDSReader reader = new DDSReader(); + reader.loadFile(file); + // FIXME: handle case where all mipmaps are requested -- this + // will require API changes + DDSReader.ImageInfo info = reader.getMipMap(mipmapLevel); + if (pixelFormat == 0) { + switch (reader.getPixelFormat()) { + case DDSReader.D3DFMT_R8G8B8: + pixelFormat = GL.GL_RGB; + break; + default: + pixelFormat = GL.GL_RGBA; + break; + } + } + if (info.isCompressed()) { + switch (info.getCompressionFormat()) { + case DDSReader.D3DFMT_DXT1: + internalFormat = GL.GL_COMPRESSED_RGB_S3TC_DXT1_EXT; + break; + case DDSReader.D3DFMT_DXT3: + internalFormat = GL.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; + break; + case DDSReader.D3DFMT_DXT5: + internalFormat = GL.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; + break; + default: + throw new RuntimeException("Unsupported DDS compression format \"" + + DDSReader.getCompressionFormatName(info.getCompressionFormat()) + "\""); + } + } + if (internalFormat == 0) { + switch (reader.getPixelFormat()) { + case DDSReader.D3DFMT_R8G8B8: + pixelFormat = GL.GL_RGB; + break; + default: + pixelFormat = GL.GL_RGBA; + break; + } + } + TextureData.Flusher flusher = new TextureData.Flusher() { + public void flush() { + reader.close(); + } + }; + TextureData data = new TextureData(mipmapLevel, + internalFormat, + info.getWidth(), + info.getHeight(), + 0, + pixelFormat, + GL.GL_UNSIGNED_BYTE, + info.isCompressed(), + true, + info.getData(), + flusher); + return data; + } + + return null; + } + + public TextureData newTextureData(InputStream stream, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + return null; + } + + public TextureData newTextureData(URL url, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + return null; + } + } + + //---------------------------------------------------------------------- + // Base class for SGI RGB and TGA image providers + static abstract class StreamBasedTextureProvider implements TextureProvider { + public TextureData newTextureData(File file, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + InputStream inStream = new BufferedInputStream(new FileInputStream(file)); + try { + // The SGIImage and TGAImage implementations use InputStreams + // anyway so there isn't much point in having a separate code + // path for files + return newTextureData(inStream, + mipmapLevel, + internalFormat, + pixelFormat, + ((fileSuffix != null) ? fileSuffix : getFileSuffix(file))); + } finally { + inStream.close(); + } + } + + public TextureData newTextureData(URL url, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + InputStream stream = url.openStream(); + try { + return newTextureData(stream, mipmapLevel, internalFormat, pixelFormat, fileSuffix); + } finally { + stream.close(); + } + } + } + + //---------------------------------------------------------------------- + // SGI RGB image provider + static class SGITextureProvider extends StreamBasedTextureProvider { + public TextureData newTextureData(InputStream stream, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + if (SGI.equals(fileSuffix) || + SGI_RGB.equals(fileSuffix) || + SGIImage.isSGIImage(stream)) { + SGIImage image = SGIImage.read(stream); + if (pixelFormat == 0) { + pixelFormat = image.getFormat(); + } + if (internalFormat == 0) { + internalFormat = image.getFormat(); + } + return new TextureData(mipmapLevel, + internalFormat, + image.getWidth(), + image.getHeight(), + 0, + pixelFormat, + GL.GL_UNSIGNED_BYTE, + false, + false, + ByteBuffer.wrap(image.getData()), + null); + } + + return null; + } + } + + //---------------------------------------------------------------------- + // TGA (Targa) image provider + static class TGATextureProvider extends StreamBasedTextureProvider { + public TextureData newTextureData(InputStream stream, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException { + if (TGA.equals(fileSuffix)) { + TGAImage image = TGAImage.read(stream); + if (pixelFormat == 0) { + pixelFormat = image.getGLFormat(); + } + if (internalFormat == 0) { + internalFormat = GL.GL_RGBA8; + } + return new TextureData(mipmapLevel, + internalFormat, + image.getWidth(), + image.getHeight(), + 0, + pixelFormat, + GL.GL_UNSIGNED_BYTE, + false, + false, + ByteBuffer.wrap(image.getData()), + null); + } + + return null; + } + } + + //---------------------------------------------------------------------- + // Helper function for above TextureProviders + private static String getFileSuffix(File file) { + String name = file.getName().toLowerCase(); + + int lastDot = name.lastIndexOf('.'); + if (lastDot < 0) { + return null; + } + return name.substring(lastDot + 1); + } +} diff --git a/src/classes/com/sun/opengl/utils/TextureProvider.java b/src/classes/com/sun/opengl/utils/TextureProvider.java new file mode 100755 index 000000000..4b71ae982 --- /dev/null +++ b/src/classes/com/sun/opengl/utils/TextureProvider.java @@ -0,0 +1,151 @@ +/* + * 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 java.net.*; + +/** Plug-in interface to TextureIO to support reading OpenGL textures + from new file formats. For all methods, either internalFormat or + pixelFormat may be 0 in which case they must be inferred as + e.g. RGB or RGBA depending on the file contents. +*/ + +public interface TextureProvider { + + /** + * Produces a TextureData object from a file, or returns null if the + * file format was not supported by this TextureProvider. Does not + * do any OpenGL-related work. The resulting TextureData can be + * converted into an OpenGL texture in a later step. + * + * @param file the file from which to read the texture data + * + * @param mipmapLevel the mipmap level of the resulting texture being + * read (FIXME: needs rethinking, not yet working) + * + * @param internalFormat the OpenGL internal format to be used for + * the texture, or 0 if it should be inferred + * from the file's contents + * + * @param pixelFormat the OpenGL pixel format to be used for + * the texture, or 0 if it should be inferred + * from the file's contents + * + * @param fileSuffix the file suffix to be used as a hint to the + * provider to more quickly decide whether it + * can handle the file, or null if the + * provider should infer the type from the + * file's contents + * + * @throws IOException if an error occurred while reading the file + */ + public TextureData newTextureData(File file, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException; + + /** + * Produces a TextureData object from a stream, or returns null if + * the file format was not supported by this TextureProvider. Does + * not do any OpenGL-related work. The resulting TextureData can be + * converted into an OpenGL texture in a later step. + * + * @param stream the stream from which to read the texture data + * + * @param mipmapLevel the mipmap level of the resulting texture being + * read (FIXME: needs rethinking, not yet working) + * + * @param internalFormat the OpenGL internal format to be used for + * the texture, or 0 if it should be inferred + * from the file's contents + * + * @param pixelFormat the OpenGL pixel format to be used for + * the texture, or 0 if it should be inferred + * from the file's contents + * + * @param fileSuffix the file suffix to be used as a hint to the + * provider to more quickly decide whether it + * can handle the file, or null if the + * provider should infer the type from the + * file's contents + * + * @throws IOException if an error occurred while reading the stream + */ + public TextureData newTextureData(InputStream stream, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException; + + /** + * Produces a TextureData object from a URL, or returns null if the + * file format was not supported by this TextureProvider. Does not + * do any OpenGL-related work. The resulting TextureData can be + * converted into an OpenGL texture in a later step. + * + * @param url the URL from which to read the texture data + * + * @param mipmapLevel the mipmap level of the resulting texture being + * read (FIXME: needs rethinking, not yet working) + * + * @param internalFormat the OpenGL internal format to be used for + * the texture, or 0 if it should be inferred + * from the file's contents + * + * @param pixelFormat the OpenGL pixel format to be used for + * the texture, or 0 if it should be inferred + * from the file's contents + * + * @param fileSuffix the file suffix to be used as a hint to the + * provider to more quickly decide whether it + * can handle the file, or null if the + * provider should infer the type from the + * file's contents + * + * @throws IOException if an error occurred while reading the URL + */ + public TextureData newTextureData(URL url, + int mipmapLevel, + int internalFormat, + int pixelFormat, + String fileSuffix) throws IOException; +} |