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| 1 | +/* | |
| 2 | + * Copyright (c) 2007, 2008, 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 sun.java2d.pipe.hw; | |
| 27 | + | |
| 28 | +/** | |
| 29 | + * Represents a set of capabilities of a BufferedContext and associated | |
| 30 | + * AccelGraphicsConfig. | |
| 31 | + * | |
| 32 | + * @see AccelGraphicsConfig | |
| 33 | + */ | |
| 34 | +public class ContextCapabilities { | |
| 35 | + /** Indicates that the context has no capabilities. */ | |
| 36 | + public static final int CAPS_EMPTY = (0 << 0); | |
| 37 | + /** Indicates that the context supports RT surfaces with alpha channel. */ | |
| 38 | + public static final int CAPS_RT_PLAIN_ALPHA = (1 << 1); | |
| 39 | + /** Indicates that the context supports RT textures with alpha channel. */ | |
| 40 | + public static final int CAPS_RT_TEXTURE_ALPHA = (1 << 2); | |
| 41 | + /** Indicates that the context supports opaque RT textures. */ | |
| 42 | + public static final int CAPS_RT_TEXTURE_OPAQUE = (1 << 3); | |
| 43 | + /** Indicates that the context supports multitexturing. */ | |
| 44 | + public static final int CAPS_MULTITEXTURE = (1 << 4); | |
| 45 | + /** Indicates that the context supports non-pow2 texture dimensions. */ | |
| 46 | + public static final int CAPS_TEXNONPOW2 = (1 << 5); | |
| 47 | + /** Indicates that the context supports non-square textures. */ | |
| 48 | + public static final int CAPS_TEXNONSQUARE = (1 << 6); | |
| 49 | + /** Indicates that the context supports pixel shader 2.0 or better. */ | |
| 50 | + public static final int CAPS_PS20 = (1 << 7); | |
| 51 | + /** Indicates that the context supports pixel shader 3.0 or better. */ | |
| 52 | + public static final int CAPS_PS30 = (1 << 8); | |
| 53 | + /* | |
| 54 | + * Pipeline contexts should use this for defining pipeline-specific | |
| 55 | + * capabilities, for example: | |
| 56 | + * int CAPS_D3D_1 = (FIRST_PRIVATE_CAP << 0); | |
| 57 | + * int CAPS_D3D_2 = (FIRST_PRIVATE_CAP << 1); | |
| 58 | + */ | |
| 59 | + protected static final int FIRST_PRIVATE_CAP = (1 << 16); | |
| 60 | + | |
| 61 | + protected final int caps; | |
| 62 | + protected final String adapterId; | |
| 63 | + | |
| 64 | + /** | |
| 65 | + * Constructs a {@code ContextCapabilities} object. | |
| 66 | + * @param caps an {@code int} representing the capabilities | |
| 67 | + * @param a {@code String} representing the name of the adapter, or null, | |
| 68 | + * in which case the adapterId will be set to "unknown adapter". | |
| 69 | + */ | |
| 70 | + protected ContextCapabilities(int caps, String adapterId) { | |
| 71 | + this.caps = caps; | |
| 72 | + this.adapterId = adapterId != null ? adapterId : "unknown adapter"; | |
| 73 | + } | |
| 74 | + | |
| 75 | + /** | |
| 76 | + * Returns a string representing the name of the graphics adapter if such | |
| 77 | + * could be determined. It is guaranteed to never return {@code null}. | |
| 78 | + * @return string representing adapter id | |
| 79 | + */ | |
| 80 | + public String getAdapterId() { | |
| 81 | + return adapterId; | |
| 82 | + } | |
| 83 | + | |
| 84 | + /** | |
| 85 | + * Returns an {@code int} with capabilities (OR-ed constants defined in | |
| 86 | + * this class and its pipeline-specific subclasses). | |
| 87 | + * @return capabilities as {@code int} | |
| 88 | + */ | |
| 89 | + public int getCaps() { | |
| 90 | + return caps; | |
| 91 | + } | |
| 92 | + | |
| 93 | + @Override | |
| 94 | + public String toString() { | |
| 95 | + StringBuffer buf = | |
| 96 | + new StringBuffer("ContextCapabilities: adapter=" + | |
| 97 | + adapterId+", caps="); | |
| 98 | + if (caps == CAPS_EMPTY) { | |
| 99 | + buf.append("CAPS_EMPTY"); | |
| 100 | + } else { | |
| 101 | + if ((caps & CAPS_RT_PLAIN_ALPHA) != 0) { | |
| 102 | + buf.append("CAPS_RT_PLAIN_ALPHA|"); | |
| 103 | + } | |
| 104 | + if ((caps & CAPS_RT_TEXTURE_ALPHA) != 0) { | |
| 105 | + buf.append("CAPS_RT_TEXTURE_ALPHA|"); | |
| 106 | + } | |
| 107 | + if ((caps & CAPS_RT_TEXTURE_OPAQUE) != 0) { | |
| 108 | + buf.append("CAPS_RT_TEXTURE_OPAQUE|"); | |
| 109 | + } | |
| 110 | + if ((caps & CAPS_MULTITEXTURE) != 0) { | |
| 111 | + buf.append("CAPS_MULTITEXTURE|"); | |
| 112 | + } | |
| 113 | + if ((caps & CAPS_TEXNONPOW2) != 0) { | |
| 114 | + buf.append("CAPS_TEXNONPOW2|"); | |
| 115 | + } | |
| 116 | + if ((caps & CAPS_TEXNONSQUARE) != 0) { | |
| 117 | + buf.append("CAPS_TEXNONSQUARE|"); | |
| 118 | + } | |
| 119 | + if ((caps & CAPS_PS20) != 0) { | |
| 120 | + buf.append("CAPS_PS20|"); | |
| 121 | + } | |
| 122 | + if ((caps & CAPS_PS30) != 0) { | |
| 123 | + buf.append("CAPS_PS30|"); | |
| 124 | + } | |
| 125 | + } | |
| 126 | + return buf.toString(); | |
| 127 | + } | |
| 128 | +} | |