1 files changed, 301 insertions, 0 deletions
diff --git a/src/solaris/classes/sun/font/XRGlyphCache.java b/src/solaris/classes/sun/font/XRGlyphCache.java
new file mode 100644
index 000000000..82c7c6a87
--- /dev/null
+++ b/src/solaris/classes/sun/font/XRGlyphCache.java
@@ -0,0 +1,301 @@
+/*
+ * Copyright 2010 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.font;
+
+import java.io.*;
+import java.util.*;
+
+import sun.awt.*;
+import sun.java2d.xr.*;
+
+/**
+ * Glyph cache used by the XRender pipeline.
+ *
+ * @author Clemens Eisserer
+ */
+
+public class XRGlyphCache implements GlyphDisposedListener {
+    XRBackend con;
+    XRCompositeManager maskBuffer;
+    HashMap<MutableInteger, XRGlyphCacheEntry> cacheMap = new HashMap<MutableInteger, XRGlyphCacheEntry>(256);
+
+    int nextID = 1;
+    MutableInteger tmp = new MutableInteger(0);
+
+    int grayGlyphSet;
+    int lcdGlyphSet;
+
+    int time = 0;
+    int cachedPixels = 0;
+    static final int MAX_CACHED_PIXELS = 100000;
+
+    ArrayList<Integer> freeGlyphIDs = new ArrayList<Integer>(255);
+
+    static final boolean batchGlyphUpload = true; // Boolean.parseBoolean(System.getProperty("sun.java2d.xrender.batchGlyphUpload"));
+
+    public XRGlyphCache(XRCompositeManager maskBuf) {
+        this.con = maskBuf.getBackend();
+        this.maskBuffer = maskBuf;
+
+        grayGlyphSet = con.XRenderCreateGlyphSet(XRUtils.PictStandardA8);
+        lcdGlyphSet = con.XRenderCreateGlyphSet(XRUtils.PictStandardARGB32);
+
+        StrikeCache.addGlyphDisposedListener(this);
+    }
+
+    public void glyphDisposed(ArrayList<Long> glyphPtrList) {
+        try {
+            SunToolkit.awtLock();
+
+            ArrayList<Integer> glyphIDList = new ArrayList<Integer>(glyphPtrList.size());
+            for (long glyphPtr : glyphPtrList) {
+                glyphIDList.add(XRGlyphCacheEntry.getGlyphID(glyphPtr));
+            }
+            freeGlyphs(glyphIDList);
+        } finally {
+            SunToolkit.awtUnlock();
+        }
+    }
+
+    protected int getFreeGlyphID() {
+        if (freeGlyphIDs.size() > 0) {
+            int newID = freeGlyphIDs.remove(freeGlyphIDs.size() - 1);
+            ;
+            return newID;
+        }
+        return nextID++;
+    }
+
+    protected XRGlyphCacheEntry getEntryForPointer(long imgPtr) {
+        int id = XRGlyphCacheEntry.getGlyphID(imgPtr);
+
+        if (id == 0) {
+            return null;
+        }
+
+        tmp.setValue(id);
+        return cacheMap.get(tmp);
+    }
+
+    public XRGlyphCacheEntry[] cacheGlyphs(GlyphList glyphList) {
+        time++;
+
+        XRGlyphCacheEntry[] entries = new XRGlyphCacheEntry[glyphList.getNumGlyphs()];
+        long[] imgPtrs = glyphList.getImages();
+        ArrayList<XRGlyphCacheEntry> uncachedGlyphs = null;
+
+        for (int i = 0; i < glyphList.getNumGlyphs(); i++) {
+            XRGlyphCacheEntry glyph;
+
+            // Find uncached glyphs and queue them for upload
+            if ((glyph = getEntryForPointer(imgPtrs[i])) == null) {
+                glyph = new XRGlyphCacheEntry(imgPtrs[i], glyphList);
+                glyph.setGlyphID(getFreeGlyphID());
+                cacheMap.put(new MutableInteger(glyph.getGlyphID()), glyph);
+
+                if (uncachedGlyphs == null) {
+                    uncachedGlyphs = new ArrayList<XRGlyphCacheEntry>();
+                }
+                uncachedGlyphs.add(glyph);
+            }
+            glyph.setLastUsed(time);
+            entries[i] = glyph;
+        }
+
+        // Add glyphs to cache
+        if (uncachedGlyphs != null) {
+            uploadGlyphs(entries, uncachedGlyphs, glyphList, null);
+        }
+
+        return entries;
+    }
+
+    protected void uploadGlyphs(XRGlyphCacheEntry[] glyphs, ArrayList<XRGlyphCacheEntry> uncachedGlyphs, GlyphList gl, int[] glIndices) {
+        for (XRGlyphCacheEntry glyph : uncachedGlyphs) {
+            cachedPixels += glyph.getPixelCnt();
+        }
+
+        if (cachedPixels > MAX_CACHED_PIXELS) {
+            clearCache(glyphs);
+        }
+
+        boolean containsLCDGlyphs = containsLCDGlyphs(uncachedGlyphs);
+        List<XRGlyphCacheEntry>[] seperatedGlyphList = seperateGlyphTypes(uncachedGlyphs, containsLCDGlyphs);
+        List<XRGlyphCacheEntry> grayGlyphList = seperatedGlyphList[0];
+        List<XRGlyphCacheEntry> lcdGlyphList = seperatedGlyphList[1];
+
+        /*
+         * Some XServers crash when uploading multiple glyphs at once. TODO:
+         * Implement build-switch in local case for distributors who know their
+         * XServer is fixed
+         */
+        if (batchGlyphUpload) {
+            if (grayGlyphList != null && grayGlyphList.size() > 0) {
+                con.XRenderAddGlyphs(grayGlyphSet, gl, grayGlyphList, generateGlyphImageStream(grayGlyphList));
+            }
+            if (lcdGlyphList != null && lcdGlyphList.size() > 0) {
+                con.XRenderAddGlyphs(lcdGlyphSet, gl, lcdGlyphList, generateGlyphImageStream(lcdGlyphList));
+            }
+        } else {
+            ArrayList<XRGlyphCacheEntry> tmpList = new ArrayList<XRGlyphCacheEntry>(1);
+            tmpList.add(null);
+
+            for (XRGlyphCacheEntry entry : uncachedGlyphs) {
+                tmpList.set(0, entry);
+
+                if (entry.getGlyphSet() == grayGlyphSet) {
+                    con.XRenderAddGlyphs(grayGlyphSet, gl, tmpList, generateGlyphImageStream(tmpList));
+                } else {
+                    con.XRenderAddGlyphs(lcdGlyphSet, gl, tmpList, generateGlyphImageStream(tmpList));
+                }
+            }
+        }
+    }
+
+    /**
+     * Seperates lcd and grayscale glyphs queued for upload, and sets the
+     * appropriate glyphset for the cache entries.
+     */
+    protected List<XRGlyphCacheEntry>[] seperateGlyphTypes(List<XRGlyphCacheEntry> glyphList, boolean containsLCDGlyphs) {
+        ArrayList<XRGlyphCacheEntry> lcdGlyphs = null;
+        ArrayList<XRGlyphCacheEntry> grayGlyphs = null;
+
+        for (XRGlyphCacheEntry cacheEntry : glyphList) {
+            if (cacheEntry.isGrayscale(containsLCDGlyphs)) {
+                if (grayGlyphs == null) {
+                    grayGlyphs = new ArrayList<XRGlyphCacheEntry>(glyphList.size());
+                }
+                cacheEntry.setGlyphSet(grayGlyphSet);
+                grayGlyphs.add(cacheEntry);
+            } else {
+                if (lcdGlyphs == null) {
+                    lcdGlyphs = new ArrayList<XRGlyphCacheEntry>(glyphList.size());
+                }
+                cacheEntry.setGlyphSet(lcdGlyphSet);
+                lcdGlyphs.add(cacheEntry);
+            }
+        }
+
+        return new List[] { grayGlyphs, lcdGlyphs };
+    }
+
+    /**
+     * Copies the glyph-images into a continous buffer, required for uploading.
+     */
+    protected byte[] generateGlyphImageStream(List<XRGlyphCacheEntry> glyphList) {
+        boolean isLCDGlyph = glyphList.get(0).getGlyphSet() == lcdGlyphSet;
+
+        ByteArrayOutputStream stream = new ByteArrayOutputStream((isLCDGlyph ? 4 : 1) * 48 * glyphList.size());
+        for (XRGlyphCacheEntry cacheEntry : glyphList) {
+            cacheEntry.writePixelData(stream, isLCDGlyph);
+        }
+
+        return stream.toByteArray();
+    }
+
+    protected boolean containsLCDGlyphs(List<XRGlyphCacheEntry> entries) {
+        boolean containsLCDGlyphs = false;
+
+        for (XRGlyphCacheEntry entry : entries) {
+            containsLCDGlyphs = !(entry.getSourceRowBytes() == entry.getWidth());
+
+            if (containsLCDGlyphs) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    protected void clearCache(XRGlyphCacheEntry[] glyps) {
+        /*
+         * Glyph uploading is so slow anyway, we can afford some inefficiency
+         * here, as the cache should usually be quite small. TODO: Implement
+         * something not that stupid ;)
+         */
+        ArrayList<XRGlyphCacheEntry> cacheList = new ArrayList<XRGlyphCacheEntry>(cacheMap.values());
+        Collections.sort(cacheList, new Comparator<XRGlyphCacheEntry>() {
+            public int compare(XRGlyphCacheEntry e1, XRGlyphCacheEntry e2) {
+                return e2.getLastUsed() - e1.getLastUsed();
+            }
+        });
+
+        for (XRGlyphCacheEntry glyph : glyps) {
+            glyph.setPinned();
+        }
+
+        ArrayList<Integer> deleteGlyphList = new ArrayList<Integer>();
+        int pixelsToRelease = cachedPixels - MAX_CACHED_PIXELS;
+
+        for (int i = cacheList.size() - 1; i >= 0 && pixelsToRelease > 0; i--) {
+            XRGlyphCacheEntry entry = cacheList.get(i);
+
+            if (!entry.isPinned()) {
+                pixelsToRelease -= entry.getPixelCnt();
+                deleteGlyphList.add(new Integer(entry.getGlyphID()));
+            }
+        }
+
+        for (XRGlyphCacheEntry glyph : glyps) {
+            glyph.setUnpinned();
+        }
+
+        freeGlyphs(deleteGlyphList);
+    }
+
+    private void freeGlyphs(List<Integer> glyphIdList) {
+
+        freeGlyphIDs.addAll(glyphIdList);
+
+        GrowableIntArray removedLCDGlyphs = new GrowableIntArray(1, 1);
+        GrowableIntArray removedGrayscaleGlyphs = new GrowableIntArray(1, 1);
+
+        for (Integer glyphId : glyphIdList) {
+            tmp.setValue(glyphId.intValue());
+            XRGlyphCacheEntry entry = cacheMap.get(tmp);
+            cachedPixels -= entry.getPixelCnt();
+
+            int removedGlyphID = entry.getGlyphID();
+            tmp.setValue(removedGlyphID);
+            cacheMap.remove(tmp);
+
+            if (entry.getGlyphSet() == grayGlyphSet) {
+                removedGrayscaleGlyphs.addInt(removedGlyphID);
+            } else {
+                removedLCDGlyphs.addInt(removedGlyphID);
+            }
+
+            entry.setGlyphID(0);
+        }
+
+        if (removedGrayscaleGlyphs.getSize() > 0) {
+            con.XRenderFreeGlyphs(grayGlyphSet, removedGrayscaleGlyphs.getSizedArray());
+        }
+
+        if (removedLCDGlyphs.getSize() > 0) {
+            con.XRenderFreeGlyphs(lcdGlyphSet, removedLCDGlyphs.getSizedArray());
+        }
+    }
+}