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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 | } | ||