1 /*
2 * Copyright (c) 2011, 2015, 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.webkit.graphics;
27
28 import com.sun.javafx.logging.PlatformLogger;
29 import com.sun.webkit.SharedBuffer;
30 import com.sun.webkit.SimpleSharedBufferInputStream;
31 import java.io.IOException;
32 import java.io.InputStream;
33 import java.nio.ByteBuffer;
34 import java.util.HashMap;
35 import java.util.MissingResourceException;
36 import java.util.ResourceBundle;
37 import java.util.concurrent.atomic.AtomicInteger;
38
39 public abstract class WCGraphicsManager {
40
41 private static final PlatformLogger logger =
42 PlatformLogger.getLogger(WCGraphicsManager.class.getName());
43
44 private final AtomicInteger idCount = new AtomicInteger(0);
45
46 private final HashMap<Integer,Ref> refMap = new HashMap<Integer,Ref>();
47
48 private static ResourceBundle imageProperties = null;
49 private static WCGraphicsManager manager = null;
50
51 public static void setGraphicsManager(WCGraphicsManager manager) {
52 WCGraphicsManager.manager = manager;
53 }
54
55 public static WCGraphicsManager getGraphicsManager() {
56 return manager;
57 }
58
59 public abstract float getDevicePixelScale();
60
61 protected abstract WCImageDecoder getImageDecoder();
62
63 public abstract WCGraphicsContext createGraphicsContext(Object g);
64
65 public abstract WCRenderQueue createRenderQueue(WCRectangle clip,
66 boolean opaque);
67
68 protected abstract WCRenderQueue createBufferedContextRQ(WCImage image);
69
70 public abstract WCPageBackBuffer createPageBackBuffer();
71
72 protected abstract WCFont getWCFont(String name, boolean bold, boolean italic, float size);
73
74 private WCFontCustomPlatformData fwkCreateFontCustomPlatformData(
75 SharedBuffer sharedBuffer)
76 {
77 try {
78 return createFontCustomPlatformData(
79 new SimpleSharedBufferInputStream(sharedBuffer));
80 } catch (IOException ex) {
81 logger.finest("Error creating font custom platform data", ex);
82 return null;
83 }
84 }
85
86 protected abstract WCFontCustomPlatformData createFontCustomPlatformData(
87 InputStream inputStream) throws IOException;
88
89 protected abstract WCPath createWCPath();
90
91 protected abstract WCPath createWCPath(WCPath path);
92
93 protected abstract WCImage createWCImage(int w, int h);
94
95 protected abstract WCImage createRTImage(int w, int h);
96
97 public abstract WCImage getIconImage(String iconURL);
98
99 public abstract Object toPlatformImage(WCImage image);
100
101 protected abstract WCImageFrame createFrame(int w, int h, ByteBuffer data);
102
103 public static String getResourceName(String key) {
104 if (imageProperties == null) {
105 imageProperties = ResourceBundle.getBundle(
106 "com.sun.webkit.graphics.Images");
107 }
108 try {
109 return imageProperties.getString(key);
110 }
111 catch (MissingResourceException exception) {
112 return key;
113 }
114 }
115
116 private void fwkLoadFromResource(String key, long bufPtr) {
117 InputStream in = getClass().getResourceAsStream(getResourceName(key));
118 if (in == null) {
119 return;
120 }
121
122 byte[] buf = new byte[1024]; // big enough for most resources
123 int count;
124 try {
125 while ((count = in.read(buf)) > -1) {
126 append(bufPtr, buf, count);
127 }
128 in.close();
129 } catch (IOException e) {
130 // just use what we've read so far
131 }
132 }
133
134 protected abstract WCTransform createTransform(double m00, double m10,
135 double m01, double m11, double m02, double m12);
136
137 protected String[] getSupportedMediaTypes() {
138 // default implementation: nothing is supported
139 return new String[0];
140 }
141
142 private WCMediaPlayer fwkCreateMediaPlayer(long nativePointer) {
143 WCMediaPlayer mediaPlayer = createMediaPlayer();
144 mediaPlayer.setNativePointer(nativePointer);
145 return mediaPlayer;
146 }
147
148 protected abstract WCMediaPlayer createMediaPlayer();
149
150 int createID() {
151 return idCount.incrementAndGet();
152 }
153
154 synchronized void ref(Ref ref) {
155 refMap.put(ref.getID(), ref);
156 }
157
158 synchronized Ref deref(Ref ref) {
159 return refMap.remove(ref.getID());
160 }
161
162 synchronized Ref getRef(int id) {
163 return refMap.get(id);
164 }
165
166 private static native void append(long bufPtr, byte[] data, int count);
167 }