X-Git-Url: http://git.megacz.com/?p=org.ibex.core.git;a=blobdiff_plain;f=src%2Forg%2Fibex%2Fgraphics%2FPicture.java;h=fb236ea55669f002cbbcdb156b1b04a289f10fc5;hp=ed0e8a99f2bac5e63a6046a17e3194779191ac3a;hb=HEAD;hpb=e1a626a6cccf4846b90c98821f597429bf095d71 diff --git a/src/org/ibex/graphics/Picture.java b/src/org/ibex/graphics/Picture.java index ed0e8a9..fb236ea 100644 --- a/src/org/ibex/graphics/Picture.java +++ b/src/org/ibex/graphics/Picture.java @@ -1,10 +1,12 @@ -// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL] +// Copyright 2000-2005 the Contributors, as shown in the revision logs. +// Licensed under the GNU General Public License version 2 ("the License"). +// You may not use this file except in compliance with the License. + package org.ibex.graphics; import java.io.*; import org.ibex.js.*; import org.ibex.plat.*; import org.ibex.util.*; -import org.ibex.core.*; /** * The in-memory representation of a PNG or GIF image. It is @@ -19,7 +21,7 @@ public class Picture { public Picture() { this.stream = null; } public Picture(JS r) { this.stream = r; } - private static Cache cache = new Cache(100); ///< Picture, keyed by the Stream that loaded them + private static Cache cache = new Cache(100, true); ///< Picture, keyed by the Stream that loaded them public JS stream = null; ///< the stream we were loaded from public int width = -1; ///< the width of the image @@ -27,11 +29,25 @@ public class Picture { public int[] data = null; ///< argb samples public boolean isLoaded = false; ///< true iff the image is fully loaded + public Picture(InputStream is) throws IOException { load(this, is); } + + public static void load(Picture p, InputStream in) throws IOException { + PushbackInputStream pbis = new PushbackInputStream(in); + int firstByte = pbis.read(); + if (firstByte == -1) throw new IOException("empty stream reading image"); + pbis.unread(firstByte); + if ((firstByte & 0xff) == 'G') GIF.load(pbis, p); + else if ((firstByte & 0xff) == 137) PNG.load(pbis, p); + else if ((firstByte & 0xff) == 0xff) Platform.decodeJPEG(pbis, p); + else throw new IOException("couldn't figure out image type from first byte"); + p.loaded(); + } + /** invoked when an image is fully loaded; subclasses can use this to initialize platform-specific constructs */ protected void loaded() { isLoaded = true; } /** turns a stream into a Picture.Source and passes it to the callback */ - public static Picture load(final JS stream, final Task callback) { + public static Picture load(final JS stream, final Callable callback) { if(stream == null) throw new NullPointerException(); Picture ret = (Picture)cache.get(stream); if (ret == null) { @@ -41,27 +57,17 @@ public class Picture { } final Picture p = ret; if (!ret.isLoaded && callback != null) { - // FEATURE: This is kind of ugly - shouldn't need a blessing - final Ibex.Blessing b = Ibex.Blessing.getBlessing(stream); new java.lang.Thread() { public void run() { InputStream in = null; try { - in = b == null ? stream.getInputStream() : b.getImage(); + in = JSU.getInputStream(stream); } catch (IOException e) { Log.error(Picture.class, e); - } catch (JSExn e) { Log.error(Picture.class, e); + //} catch (JSExn e) { Log.error(Picture.class, e); } if (in == null) { Log.warn(Picture.class, "couldn't load image for stream " + stream.unclone()); return; } try { - PushbackInputStream pbis = new PushbackInputStream(in); - int firstByte = pbis.read(); - if (firstByte == -1) throw new JSExn("empty stream reading image"); - pbis.unread(firstByte); - if ((firstByte & 0xff) == 'G') GIF.load(pbis, p); - else if ((firstByte & 0xff) == 137) PNG.load(pbis, p); - else if ((firstByte & 0xff) == 0xff) Platform.decodeJPEG(pbis, p); - else throw new JSExn("couldn't figure out image type from first byte"); - p.loaded(); - Scheduler.add(callback); + load(p, in); + Platform.Scheduler.add(callback); } catch (Exception e) { Log.info(this, "exception while loading image"); Log.info(this, e);