| /* |
| * Copyright (c) 2010, 2014, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.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(); |
| |
| GrowableIntArray glyphIDList = new GrowableIntArray(1, glyphPtrList.size()); |
| for (long glyphPtr : glyphPtrList) { |
| int glyphID = XRGlyphCacheEntry.getGlyphID(glyphPtr); |
| |
| //Check if glyph hasn't been freed already |
| if (glyphID != 0) { |
| glyphIDList.addInt(glyphID); |
| } |
| } |
| 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<>(glyphList.size()); |
| } |
| cacheEntry.setGlyphSet(grayGlyphSet); |
| grayGlyphs.add(cacheEntry); |
| } else { |
| if (lcdGlyphs == null) { |
| lcdGlyphs = new ArrayList<>(glyphList.size()); |
| } |
| cacheEntry.setGlyphSet(lcdGlyphSet); |
| lcdGlyphs.add(cacheEntry); |
| } |
| } |
| // Arrays and generics don't play well together |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| List<XRGlyphCacheEntry>[] tmp = |
| (List<XRGlyphCacheEntry>[]) (new List[] { grayGlyphs, lcdGlyphs }); |
| return tmp; |
| } |
| |
| /** |
| * 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(); |
| } |
| |
| GrowableIntArray deleteGlyphList = new GrowableIntArray(1, 10); |
| 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.addInt(entry.getGlyphID()); |
| } |
| } |
| |
| for (XRGlyphCacheEntry glyph : glyps) { |
| glyph.setUnpinned(); |
| } |
| |
| freeGlyphs(deleteGlyphList); |
| } |
| |
| private void freeGlyphs(GrowableIntArray glyphIdList) { |
| GrowableIntArray removedLCDGlyphs = new GrowableIntArray(1, 10); |
| GrowableIntArray removedGrayscaleGlyphs = new GrowableIntArray(1, 10); |
| |
| for (int i=0; i < glyphIdList.getSize(); i++) { |
| int glyphId = glyphIdList.getInt(i); |
| freeGlyphIDs.add(glyphId); |
| |
| tmp.setValue(glyphId); |
| XRGlyphCacheEntry entry = cacheMap.get(tmp); |
| cachedPixels -= entry.getPixelCnt(); |
| cacheMap.remove(tmp); |
| |
| if (entry.getGlyphSet() == grayGlyphSet) { |
| removedGrayscaleGlyphs.addInt(glyphId); |
| } else { |
| removedLCDGlyphs.addInt(glyphId); |
| } |
| |
| entry.setGlyphID(0); |
| } |
| |
| if (removedGrayscaleGlyphs.getSize() > 0) { |
| con.XRenderFreeGlyphs(grayGlyphSet, removedGrayscaleGlyphs.getSizedArray()); |
| } |
| |
| if (removedLCDGlyphs.getSize() > 0) { |
| con.XRenderFreeGlyphs(lcdGlyphSet, removedLCDGlyphs.getSizedArray()); |
| } |
| } |
| } |