1 /*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.marlin;
27
28 import com.sun.javafx.geom.Path2D;
29 import java.util.concurrent.atomic.AtomicInteger;
30 import com.sun.util.reentrant.ReentrantContext;
31 import com.sun.javafx.geom.Rectangle;
32 import com.sun.marlin.ArrayCacheConst.CacheStats;
33 import java.lang.ref.WeakReference;
34
35 /**
36 * This class is a renderer context dedicated to a single thread
37 */
38 public final class RendererContext extends ReentrantContext implements MarlinConst {
39
40 // RendererContext creation counter
41 private static final AtomicInteger CTX_COUNT = new AtomicInteger(1);
42
43 /**
44 * Create a new renderer context
45 *
46 * @return new RendererContext instance
47 */
48 public static RendererContext createContext() {
49 return new RendererContext("ctx"
50 + Integer.toString(CTX_COUNT.getAndIncrement()));
51 }
52
53 // Smallest object used as Cleaner's parent reference
54 private final Object cleanerObj;
55 // dirty flag indicating an exception occured during pipeline in pathTo()
56 public boolean dirty = false;
57 // shared data
58 public final float[] float6 = new float[6];
59 // shared curve (dirty) (Renderer / Stroker)
60 final Curve curve = new Curve();
61 // MarlinRenderingEngine.TransformingPathConsumer2D
62 public final TransformingPathConsumer2D transformerPC2D;
63 // recycled Path2D instance (weak)
64 private WeakReference<Path2D> refPath2D = null;
65 // shared memory between renderer instances:
66 final RendererSharedMemory rdrMem;
67 public final Renderer renderer;
68 private RendererNoAA rendererNoAA = null;
69 public final Stroker stroker;
70 // Simplifies out collinear lines
71 public final CollinearSimplifier simplifier = new CollinearSimplifier();
72 public final Dasher dasher;
73 // flag indicating the shape is stroked (1) or filled (0)
74 int stroking = 0;
75
76 // MarlinFX specific:
77 // dirty bbox rectangle
78 public final Rectangle clip = new Rectangle();
79 // dirty MaskMarlinAlphaConsumer
80 public MaskMarlinAlphaConsumer consumer = null;
81
82 // Array caches:
83 /* clean int[] cache (zero-filled) = 4 refs */
84 private final IntArrayCache cleanIntCache = new IntArrayCache(true, 4);
85 /* dirty int[] cache = 4 refs */
86 private final IntArrayCache dirtyIntCache = new IntArrayCache(false, 4);
87 /* dirty float[] cache = 3 refs */
88 private final FloatArrayCache dirtyFloatCache = new FloatArrayCache(false, 3);
89 /* dirty byte[] cache = 1 ref */
90 private final ByteArrayCache dirtyByteCache = new ByteArrayCache(false, 1);
91
92 // RendererContext statistics
93 final RendererStats stats;
94
95 /**
96 * Constructor
97 *
98 * @param name context name (debugging)
99 */
100 RendererContext(final String name) {
101 if (LOG_CREATE_CONTEXT) {
102 MarlinUtils.logInfo("new RendererContext = " + name);
103 }
104 this.cleanerObj = new Object();
105
106 // create first stats (needed by newOffHeapArray):
107 if (DO_STATS || DO_MONITORS) {
108 stats = RendererStats.createInstance(cleanerObj, name);
109 // push cache stats:
110 stats.cacheStats = new CacheStats[] { cleanIntCache.stats,
111 dirtyIntCache.stats, dirtyFloatCache.stats, dirtyByteCache.stats
112 };
113 } else {
114 stats = null;
115 }
116
117 // MarlinRenderingEngine.TransformingPathConsumer2D
118 transformerPC2D = new TransformingPathConsumer2D();
119
120 // Renderer shared memory:
121 rdrMem = new RendererSharedMemory(this);
122
123 // Renderer:
124 renderer = new Renderer(this);
125
126 stroker = new Stroker(this);
127 dasher = new Dasher(this);
128 }
129
130 /**
131 * Disposes this renderer context:
132 * clean up before reusing this context
133 */
134 public void dispose() {
135 if (DO_STATS) {
136 if (stats.totalOffHeap > stats.totalOffHeapMax) {
137 stats.totalOffHeapMax = stats.totalOffHeap;
138 }
139 stats.totalOffHeap = 0L;
140 }
141 stroking = 0;
142 // if context is maked as DIRTY:
143 if (dirty) {
144 // may happen if an exception if thrown in the pipeline processing:
145 // force cleanup of all possible pipelined blocks (except Renderer):
146
147 // Dasher:
148 this.dasher.dispose();
149 // Stroker:
150 this.stroker.dispose();
151
152 // mark context as CLEAN:
153 dirty = false;
154 }
155 }
156
157 public Path2D getPath2D() {
158 // resolve reference:
159 Path2D p2d = (refPath2D != null) ? refPath2D.get() : null;
160
161 // create a new Path2D ?
162 if (p2d == null) {
163 p2d = new Path2D(Path2D.WIND_NON_ZERO, INITIAL_EDGES_COUNT); // 32K
164
165 // update weak reference:
166 refPath2D = new WeakReference<Path2D>(p2d);
167 }
168 // reset the path anyway:
169 p2d.reset();
170 return p2d;
171 }
172
173 public RendererNoAA getRendererNoAA() {
174 if (rendererNoAA == null) {
175 rendererNoAA = new RendererNoAA(this);
176 }
177 return rendererNoAA;
178 }
179
180 OffHeapArray newOffHeapArray(final long initialSize) {
181 if (DO_STATS) {
182 stats.totalOffHeapInitial += initialSize;
183 }
184 return new OffHeapArray(cleanerObj, initialSize);
185 }
186
187 IntArrayCache.Reference newCleanIntArrayRef(final int initialSize) {
188 return cleanIntCache.createRef(initialSize);
189 }
190
191 IntArrayCache.Reference newDirtyIntArrayRef(final int initialSize) {
192 return dirtyIntCache.createRef(initialSize);
193 }
194
195 FloatArrayCache.Reference newDirtyFloatArrayRef(final int initialSize) {
196 return dirtyFloatCache.createRef(initialSize);
197 }
198
199 ByteArrayCache.Reference newDirtyByteArrayRef(final int initialSize) {
200 return dirtyByteCache.createRef(initialSize);
201 }
202
203 static final class RendererSharedMemory {
204
205 // edges [ints] stored in off-heap memory
206 final OffHeapArray edges;
207
208 // edgeBuckets ref (clean)
209 final IntArrayCache.Reference edgeBuckets_ref;
210 // edgeBucketCounts ref (clean)
211 final IntArrayCache.Reference edgeBucketCounts_ref;
212
213 // alphaLine ref (clean)
214 final IntArrayCache.Reference alphaLine_ref;
215
216 // crossings ref (dirty)
217 final IntArrayCache.Reference crossings_ref;
218 // edgePtrs ref (dirty)
219 final IntArrayCache.Reference edgePtrs_ref;
220 // merge sort initial arrays
221 // aux_crossings ref (dirty)
222 final IntArrayCache.Reference aux_crossings_ref;
223 // aux_edgePtrs ref (dirty)
224 final IntArrayCache.Reference aux_edgePtrs_ref;
225
226 // blkFlags ref (clean)
227 final IntArrayCache.Reference blkFlags_ref;
228
229 RendererSharedMemory(final RendererContext rdrCtx) {
230 edges = rdrCtx.newOffHeapArray(INITIAL_EDGES_CAPACITY); // 96K
231
232 edgeBuckets_ref = rdrCtx.newCleanIntArrayRef(INITIAL_BUCKET_ARRAY); // 64K
233 edgeBucketCounts_ref = rdrCtx.newCleanIntArrayRef(INITIAL_BUCKET_ARRAY); // 64K
234
235 // 2048 (pixelsize) pixel large
236 alphaLine_ref = rdrCtx.newCleanIntArrayRef(INITIAL_AA_ARRAY); // 8K
237
238 crossings_ref = rdrCtx.newDirtyIntArrayRef(INITIAL_CROSSING_COUNT); // 2K
239 aux_crossings_ref = rdrCtx.newDirtyIntArrayRef(INITIAL_CROSSING_COUNT); // 2K
240 edgePtrs_ref = rdrCtx.newDirtyIntArrayRef(INITIAL_CROSSING_COUNT); // 2K
241 aux_edgePtrs_ref = rdrCtx.newDirtyIntArrayRef(INITIAL_CROSSING_COUNT); // 2K
242
243 blkFlags_ref = rdrCtx.newCleanIntArrayRef(INITIAL_ARRAY); // 1K = 1 tile line
244 }
245 }
246 }