-// 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 org.ibex.util.*;
import java.io.*;
import java.util.Hashtable;
import org.ibex.js.*;
-import org.xwt.mips.*;
+import org.ibex.core.*;
+import org.ibex.nestedvm.*;
import org.ibex.plat.*;
+import org.ibex.nestedvm.Runtime;
// FEATURE: this could be cleaner
/** encapsulates a single font (a set of Glyphs) */
public class Font {
- private Font(Stream stream, int pointsize) { this.stream = stream; this.pointsize = pointsize; }
+ private Font(JS stream, int pointsize) { this.stream = stream; this.pointsize = pointsize; }
private static boolean glyphRenderingTaskIsScheduled = false;
public final int pointsize; ///< the size of the font
- public final Stream stream; ///< the stream from which this font was loaded
+ public final JS stream; ///< the stream from which this font was loaded
public int max_ascent; ///< the maximum ascent, in pixels
public int max_descent; ///< the maximum descent, in pixels
boolean latinCharsPreloaded = false; ///< true if a request to preload ASCII 32-127 has begun
- Glyph[] glyphs = new Glyph[65535]; ///< the glyphs that comprise this font
+ public Glyph[] glyphs = new Glyph[65535]; ///< the glyphs that comprise this font
public abstract static class Glyph {
protected Glyph(Font font, char c) { this.font = font; this.c = c; }
public int width = -1; ///< the width of the glyph
public int height = -1; ///< the height of the glyph
public byte[] data = null; ///< the alpha channel samples for this font
+ public String path = null; // FIXME this should be shared across point sizes
void render() {
if (!isLoaded) try { renderGlyph(this); } catch (IOException e) { Log.info(Font.class, e); }
isLoaded = true;
static final Hashtable glyphsToBeCached = new Hashtable();
static final Hashtable glyphsToBeDisplayed = new Hashtable();
- private static Cache fontCache = new Cache(100);
- public static Font getFont(Stream stream, int pointsize) {
- Font ret = (Font)fontCache.get(stream, new Integer(pointsize));
- if (ret == null) fontCache.put(stream, new Integer(pointsize), ret = new Font(stream, pointsize));
+ // HACK: replace with Cache<JS, int>
+ private static Basket.Map fonts = new Basket.HashMap();
+ public static Font getFont(JS stream, int pointsize) {
+ Basket.Map m = (Basket.Map)fonts.get(stream);
+ Font ret = null;
+ if (m != null) ret = (Font)m.get(new Integer(pointsize));
+ else fonts.put(stream, m = new Basket.HashMap());
+ if (ret == null) m.put(new Integer(pointsize), ret = new Font(stream, pointsize));
return ret;
}
}
// FEATURE do we really need to be caching sizes?
- private static Cache sizeCache = new Cache(1000);
+ private static Cache sizeCache = new Cache(1000, true);
public int textwidth(String s) { return (int)((textsize(s) >>> 32) & 0xffffffff); }
public int textheight(String s) { return (int)(textsize(s) & 0xffffffffL); }
public long textsize(String s) {
return ret;
}
- static final Task glyphRenderingTask = new Task() { public void perform() {
+ public Glyph getGlyph(char c) {
+ rasterizeGlyphs(c+"", null, 0, 0, 0, 0, 0, 0, 0);
+ Glyph g = glyphs[c];
+ g.render();
+ return g;
+ }
+
+ static final Callable glyphRenderingTask = new Callable() { public Object run(Object o) {
// FIXME: this should be a low-priority task
glyphRenderingTaskIsScheduled = false;
- if (glyphsToBeCached.isEmpty()) return;
+ if (glyphsToBeCached.isEmpty()) return null;
Glyph g = (Glyph)glyphsToBeCached.keys().nextElement();
- if (g == null) return;
+ if (g == null) return null;
glyphsToBeCached.remove(g);
Log.debug(Font.class, "glyphRenderingTask rendering " + g.c + " of " + g.font);
g.render();
Log.debug(Glyph.class, " done rendering glyph " + g.c);
glyphRenderingTaskIsScheduled = true;
Scheduler.add(this);
+ return null;
} };
// FEATURE: use streams, not memoryfont's
// FEATURE: kerning pairs
- private static int mem_allocated = 0;
- private static org.xwt.mips.Runtime vm = null;
- private static Stream loadedStream = null;
+ private static final Runtime rt;
+ private static JS loadedStream;
+ private static int loadedStreamAddr;
- public static void loadFontByteStream(Stream res) {
+ static {
try {
- Log.info(Font.class, "loading font " + res);
- loadedStream = res;
- InputStream is = Stream.getInputStream(res);
+ rt = (Runtime)Class.forName("org.ibex.util.MIPSApps").newInstance();
+ } catch(Exception e) {
+ throw new Error("Error instantiating freetype: " + e);
+ }
+ rt.start(new String[]{"freetype"});
+ rt.execute();
+ rtCheck();
+ }
+
+ private static void rtCheck() { if(rt.getState() != Runtime.PAUSED) throw new Error("Freetype exited " + rt.exitStatus()); }
+
+ private static void loadFontByteStream(JS res) {
+ if(loadedStream == res) return;
+
+ try {
+ Log.info(Font.class, "loading font " + JSU.str(res));
+ InputStream is = res.getInputStream();
byte[] fontstream = InputStreamToByteArray.convert(is);
- vm = (org.xwt.mips.Runtime)Class.forName("org.ibex.util.MIPSApps").newInstance();
- int baseAddr = vm.sbrk(fontstream.length);
- vm.copyout(fontstream, baseAddr, fontstream.length);
- vm.setUserInfo(0, baseAddr);
- vm.setUserInfo(1, fontstream.length);
- vm.start(new String[]{ "freetype" });
- vm.execute();
- if(vm.getState() == org.xwt.mips.Runtime.DONE) throw new Error("Freetype VM exited: " + vm.exitStatus());
+ rt.free(loadedStreamAddr);
+ loadedStreamAddr = rt.xmalloc(fontstream.length);
+ rt.copyout(fontstream, loadedStreamAddr, fontstream.length);
+ if(rt.call("load_font", loadedStreamAddr, fontstream.length) != 0)
+ throw new RuntimeException("load_font failed"); // FEATURE: better error
+ rtCheck();
+ loadedStream = res;
} catch (Exception e) {
+ // FEATURE: Better error reporting (thow an exception?)
Log.info(Font.class, e);
}
}
- public static synchronized void renderGlyph(Font.Glyph glyph) throws IOException {
+ private static synchronized void renderGlyph(Font.Glyph glyph) throws IOException {
try {
Log.debug(Font.class, "rasterizing glyph " + glyph.c + " of font " + glyph.font);
if (loadedStream != glyph.font.stream) loadFontByteStream(glyph.font.stream);
- vm.setUserInfo(2, (int)glyph.c);
- vm.setUserInfo(3, (int)glyph.c);
- vm.setUserInfo(4, glyph.font.pointsize);
+
long start = System.currentTimeMillis();
- vm.execute();
- glyph.font.max_ascent = vm.getUserInfo(8);
- glyph.font.max_descent = vm.getUserInfo(9);
- glyph.baseline = vm.getUserInfo(10);
- glyph.advance = vm.getUserInfo(11);
- glyph.width = vm.getUserInfo(6);
- glyph.height = vm.getUserInfo(7);
+ rt.call("render",glyph.c,glyph.font.pointsize);
+ rtCheck();
+ glyph.font.max_ascent = rt.getUserInfo(3);
+ glyph.font.max_descent = rt.getUserInfo(4);
+ glyph.baseline = rt.getUserInfo(5);
+ glyph.advance = rt.getUserInfo(6);
+
+ glyph.width = rt.getUserInfo(1);
+ glyph.height = rt.getUserInfo(2);
+
glyph.data = new byte[glyph.width * glyph.height];
- int addr = vm.getUserInfo(5);
- vm.copyin(addr, glyph.data, glyph.width * glyph.height);
- glyph.isLoaded = true;
+ int addr = rt.getUserInfo(0);
+ rt.copyin(addr, glyph.data, glyph.width * glyph.height);
+ byte[] path = new byte[rt.getUserInfo(8)];
+ rt.copyin(rt.getUserInfo(7), path, rt.getUserInfo(8));
+ glyph.path = new String(path);
+ glyph.path += " m " + (64 * glyph.advance) + " 0 ";
+
+ glyph.isLoaded = true;
} catch (Exception e) {
+ // FEATURE: Better error reporting (thow an exception?)
Log.info(Font.class, e);
}
}
projects / org.ibex.core.git / blobdiff