Showing the changes to java/pkg/sun/java2d/opengl/OGLContext.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,220 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2004, 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.opengl; | ||
| 27 | |||
| 28 | import sun.java2d.pipe.BufferedContext; | ||
| 29 | import sun.java2d.pipe.RenderBuffer; | ||
| 30 | import sun.java2d.pipe.RenderQueue; | ||
| 31 | import sun.java2d.pipe.hw.ContextCapabilities; | ||
| 32 | import static sun.java2d.pipe.BufferedOpCodes.*; | ||
| 33 | import static sun.java2d.pipe.hw.ContextCapabilities.*; | ||
| 34 | |||
| 35 | /** | ||
| 36 | * Note that the RenderQueue lock must be acquired before calling any of | ||
| 37 | * the methods in this class. | ||
| 38 | */ | ||
| 39 | public class OGLContext extends BufferedContext { | ||
| 40 | |||
| 41 | private final OGLGraphicsConfig config; | ||
| 42 | |||
| 43 | OGLContext(RenderQueue rq, OGLGraphicsConfig config) { | ||
| 44 | super(rq); | ||
| 45 | this.config = config; | ||
| 46 | } | ||
| 47 | |||
| 48 | /** | ||
| 49 | * Convenience method that delegates to setScratchSurface() below. | ||
| 50 | */ | ||
| 51 | static void setScratchSurface(OGLGraphicsConfig gc) { | ||
| 52 | setScratchSurface(gc.getNativeConfigInfo()); | ||
| 53 | } | ||
| 54 | |||
| 55 | /** | ||
| 56 | * Makes the given GraphicsConfig's context current to its associated | ||
| 57 | * "scratch surface". Each GraphicsConfig maintains a native context | ||
| 58 | * (GLXContext on Unix, HGLRC on Windows) as well as a native pbuffer | ||
| 59 | * known as the "scratch surface". By making the context current to the | ||
| 60 | * scratch surface, we are assured that we have a current context for | ||
| 61 | * the relevant GraphicsConfig, and can therefore perform operations | ||
| 62 | * depending on the capabilities of that GraphicsConfig. For example, | ||
| 63 | * if the GraphicsConfig supports the GL_ARB_texture_non_power_of_two | ||
| 64 | * extension, then we should be able to make a non-pow2 texture for this | ||
| 65 | * GraphicsConfig once we make the context current to the scratch surface. | ||
| 66 | * | ||
| 67 | * This method should be used for operations with an OpenGL texture | ||
| 68 | * as the destination surface (e.g. a sw->texture blit loop), or in those | ||
| 69 | * situations where we may not otherwise have a current context (e.g. | ||
| 70 | * when disposing a texture-based surface). | ||
| 71 | */ | ||
| 72 | static void setScratchSurface(long pConfigInfo) { | ||
| 73 | // assert OGLRenderQueue.getInstance().lock.isHeldByCurrentThread(); | ||
| 74 | |||
| 75 | // invalidate the current context | ||
| 76 | currentContext = null; | ||
| 77 | |||
| 78 | // set the scratch context | ||
| 79 | OGLRenderQueue rq = OGLRenderQueue.getInstance(); | ||
| 80 | RenderBuffer buf = rq.getBuffer(); | ||
| 81 | rq.ensureCapacityAndAlignment(12, 4); | ||
| 82 | buf.putInt(SET_SCRATCH_SURFACE); | ||
| 83 | buf.putLong(pConfigInfo); | ||
| 84 | } | ||
| 85 | |||
| 86 | /** | ||
| 87 | * Invalidates the currentContext field to ensure that we properly | ||
| 88 | * revalidate the OGLContext (make it current, etc.) next time through | ||
| 89 | * the validate() method. This is typically invoked from methods | ||
| 90 | * that affect the current context state (e.g. disposing a context or | ||
| 91 | * surface). | ||
| 92 | */ | ||
| 93 | static void invalidateCurrentContext() { | ||
| 94 | // assert OGLRenderQueue.getInstance().lock.isHeldByCurrentThread(); | ||
| 95 | |||
| 96 | // invalidate the current Java-level context so that we | ||
| 97 | // revalidate everything the next time around | ||
| 98 | if (currentContext != null) { | ||
| 99 | currentContext.invalidateContext(); | ||
| 100 | currentContext = null; | ||
| 101 | } | ||
| 102 | |||
| 103 | // invalidate the context reference at the native level, and | ||
| 104 | // then flush the queue so that we have no pending operations | ||
| 105 | // dependent on the current context | ||
| 106 | OGLRenderQueue rq = OGLRenderQueue.getInstance(); | ||
| 107 | rq.ensureCapacity(4); | ||
| 108 | rq.getBuffer().putInt(INVALIDATE_CONTEXT); | ||
| 109 | rq.flushNow(); | ||
| 110 | } | ||
| 111 | |||
| 112 | public RenderQueue getRenderQueue() { | ||
| 113 | return OGLRenderQueue.getInstance(); | ||
| 114 | } | ||
| 115 | |||
| 116 | /** | ||
| 117 | * Returns a string representing adapter id (vendor, renderer, version). | ||
| 118 | * Must be called on the rendering thread. | ||
| 119 | * | ||
| 120 | * @return an id string for the adapter | ||
| 121 | */ | ||
| 122 | static final native String getOGLIdString(); | ||
| 123 | |||
| 124 | @Override | ||
| 125 | public void saveState() { | ||
| 126 | // assert rq.lock.isHeldByCurrentThread(); | ||
| 127 | |||
| 128 | // reset all attributes of this and current contexts | ||
| 129 | invalidateContext(); | ||
| 130 | invalidateCurrentContext(); | ||
| 131 | |||
| 132 | setScratchSurface(config); | ||
| 133 | |||
| 134 | // save the state on the native level | ||
| 135 | rq.ensureCapacity(4); | ||
| 136 | buf.putInt(SAVE_STATE); | ||
| 137 | rq.flushNow(); | ||
| 138 | } | ||
| 139 | |||
| 140 | @Override | ||
| 141 | public void restoreState() { | ||
| 142 | // assert rq.lock.isHeldByCurrentThread(); | ||
| 143 | |||
| 144 | // reset all attributes of this and current contexts | ||
| 145 | invalidateContext(); | ||
| 146 | invalidateCurrentContext(); | ||
| 147 | |||
| 148 | setScratchSurface(config); | ||
| 149 | |||
| 150 | // restore the state on the native level | ||
| 151 | rq.ensureCapacity(4); | ||
| 152 | buf.putInt(RESTORE_STATE); | ||
| 153 | rq.flushNow(); | ||
| 154 | } | ||
| 155 | |||
| 156 | static class OGLContextCaps extends ContextCapabilities { | ||
| 157 | /** | ||
| 158 | * Indicates the presence of the GL_EXT_framebuffer_object extension. | ||
| 159 | * This cap will only be set if the fbobject system property has been | ||
| 160 | * enabled and we are able to create an FBO with depth buffer. | ||
| 161 | */ | ||
| 162 | static final int CAPS_EXT_FBOBJECT = | ||
| 163 | (CAPS_RT_TEXTURE_ALPHA | CAPS_RT_TEXTURE_OPAQUE); | ||
| 164 | /** Indicates that the context supports a stored alpha channel. */ | ||
| 165 | static final int CAPS_STORED_ALPHA = CAPS_RT_PLAIN_ALPHA; | ||
| 166 | /** Indicates that the context is doublebuffered. */ | ||
| 167 | static final int CAPS_DOUBLEBUFFERED = (FIRST_PRIVATE_CAP << 0); | ||
| 168 | /** | ||
| 169 | * Indicates the presence of the GL_ARB_fragment_shader extension. | ||
| 170 | * This cap will only be set if the lcdshader system property has been | ||
| 171 | * enabled and the hardware supports the minimum number of texture units | ||
| 172 | */ | ||
| 173 | static final int CAPS_EXT_LCD_SHADER = (FIRST_PRIVATE_CAP << 1); | ||
| 174 | /** | ||
| 175 | * Indicates the presence of the GL_ARB_fragment_shader extension. | ||
| 176 | * This cap will only be set if the biopshader system property has been | ||
| 177 | * enabled and the hardware meets our minimum requirements. | ||
| 178 | */ | ||
| 179 | static final int CAPS_EXT_BIOP_SHADER = (FIRST_PRIVATE_CAP << 2); | ||
| 180 | /** | ||
| 181 | * Indicates the presence of the GL_ARB_fragment_shader extension. | ||
| 182 | * This cap will only be set if the gradshader system property has been | ||
| 183 | * enabled and the hardware meets our minimum requirements. | ||
| 184 | */ | ||
| 185 | static final int CAPS_EXT_GRAD_SHADER = (FIRST_PRIVATE_CAP << 3); | ||
| 186 | /** Indicates the presence of the GL_ARB_texture_rectangle extension. */ | ||
| 187 | static final int CAPS_EXT_TEXRECT = (FIRST_PRIVATE_CAP << 4); | ||
| 188 | |||
| 189 | OGLContextCaps(int caps, String adapterId) { | ||
| 190 | super(caps, adapterId); | ||
| 191 | } | ||
| 192 | |||
| 193 | @Override | ||
| 194 | public String toString() { | ||
| 195 | StringBuffer buf = new StringBuffer(super.toString()); | ||
| 196 | if ((caps & CAPS_EXT_FBOBJECT) != 0) { | ||
| 197 | buf.append("CAPS_EXT_FBOBJECT|"); | ||
| 198 | } | ||
| 199 | if ((caps & CAPS_STORED_ALPHA) != 0) { | ||
| 200 | buf.append("CAPS_STORED_ALPHA|"); | ||
| 201 | } | ||
| 202 | if ((caps & CAPS_DOUBLEBUFFERED) != 0) { | ||
| 203 | buf.append("CAPS_DOUBLEBUFFERED|"); | ||
| 204 | } | ||
| 205 | if ((caps & CAPS_EXT_LCD_SHADER) != 0) { | ||
| 206 | buf.append("CAPS_EXT_LCD_SHADER|"); | ||
| 207 | } | ||
| 208 | if ((caps & CAPS_EXT_BIOP_SHADER) != 0) { | ||
| 209 | buf.append("CAPS_BIOP_SHADER|"); | ||
| 210 | } | ||
| 211 | if ((caps & CAPS_EXT_GRAD_SHADER) != 0) { | ||
| 212 | buf.append("CAPS_EXT_GRAD_SHADER|"); | ||
| 213 | } | ||
| 214 | if ((caps & CAPS_EXT_TEXRECT) != 0) { | ||
| 215 | buf.append("CAPS_EXT_TEXRECT|"); | ||
| 216 | } | ||
| 217 | return buf.toString(); | ||
| 218 | } | ||
| 219 | } | ||
| 220 | } | ||