1 package org.xwt.translators;
5 import java.util.zip.*;
7 // FEATURE: use streams, not memoryfont's
8 // FEATURE: kerning pairs
9 public class Freetype {
13 private static org.xwt.mips.Interpreter vm = null;
15 public static synchronized void renderGlyphs(Res res, int pointsize, int firstGlyph, int lastGlyph, Cache glyphCache) {
20 InputStream bis = Platform.getBuiltinInputStream();
21 ZipInputStream zis = new ZipInputStream(bis);
22 for(ZipEntry ze = zis.getNextEntry(); ze != null && !ze.getName().equals("freetype.mips"); ze = zis.getNextEntry()) { }
23 byte[] image = InputStreamToByteArray.convert(zis);
24 vm = new org.xwt.mips.Interpreter(image);
25 vm.start(new String[]{ "freetype.mips" });
29 int FONT_RESERVED = 256*1024;
30 int baseAddr = vm.sbrk(FONT_RESERVED);
32 byte[] fontstream = InputStreamToByteArray.convert(res.getInputStream());
33 vm.copyout(fontstream, baseAddr, fontstream.length);
34 vm.setUserInfo(0, baseAddr);
35 vm.setUserInfo(1, fontstream.length);
36 vm.setUserInfo(2, firstGlyph);
37 vm.setUserInfo(3, lastGlyph);
38 vm.setUserInfo(4, pointsize);
40 long start = System.currentTimeMillis();
42 for(int g = firstGlyph; g <= lastGlyph; g++) {
45 Glyph glyph = new Glyph();
46 glyph.max_ascent = vm.getUserInfo(8);
47 glyph.max_descent = vm.getUserInfo(9);
48 glyph.baseline = vm.getUserInfo(10);
49 glyph.advance = vm.getUserInfo(11);
52 int width = vm.getUserInfo(6);
53 int height = vm.getUserInfo(7);
55 if (width == 0 || height == 0) {
56 Log.log(Freetype.class, "warning glyph " + g + " has zero width/height");
59 byte[] data = new byte[width * height];
60 int addr = vm.getUserInfo(5);
61 vm.copyin(addr,data,width*height);
62 glyph.p = Platform.createAlphaOnlyPicture(data, width, height);
65 glyphCache.put(res, new Integer((g << 16) | pointsize), glyph);
67 } catch (Exception e) {
68 Log.log(Freetype.class, e);