01: /*
02: * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package sun.java2d.opengl;
27:
28: import java.awt.Color;
29: import java.awt.Transparency;
30:
31: import sun.java2d.SurfaceData;
32: import sun.java2d.SurfaceDataProxy;
33: import sun.java2d.loops.SurfaceType;
34: import sun.java2d.loops.CompositeType;
35:
36: /**
37: * The proxy class contains the logic for when to replace a
38: * SurfaceData with a cached OGL Texture and the code to create
39: * the accelerated surfaces.
40: */
41: public class OGLSurfaceDataProxy extends SurfaceDataProxy {
42: public static SurfaceDataProxy createProxy(SurfaceData srcData,
43: OGLGraphicsConfig dstConfig) {
44: if (srcData instanceof OGLSurfaceData) {
45: // srcData must be a VolatileImage which either matches
46: // our pixel format or not - either way we do not cache it...
47: return UNCACHED;
48: }
49:
50: return new OGLSurfaceDataProxy(dstConfig, srcData
51: .getTransparency());
52: }
53:
54: OGLGraphicsConfig oglgc;
55: int transparency;
56:
57: public OGLSurfaceDataProxy(OGLGraphicsConfig oglgc, int transparency) {
58: this .oglgc = oglgc;
59: this .transparency = transparency;
60: }
61:
62: @Override
63: public SurfaceData validateSurfaceData(SurfaceData srcData,
64: SurfaceData cachedData, int w, int h) {
65: if (cachedData == null) {
66: cachedData = oglgc.createManagedSurface(w, h, transparency);
67: }
68: return cachedData;
69: }
70:
71: @Override
72: public boolean isSupportedOperation(SurfaceData srcData,
73: int txtype, CompositeType comp, Color bgColor) {
74: return (bgColor == null || transparency == Transparency.OPAQUE);
75: }
76: }
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