JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */

#ifndef GLXGraphicsConfig_h_Included
#define GLXGraphicsConfig_h_Included

#include "jni.h"
#include "J2D_GL/glx.h"
#include "OGLSurfaceData.h"
#include "OGLContext.h"

#ifdef HEADLESS
#define GLXGraphicsConfigInfo void
#define GLXCtxInfo void
#else /* HEADLESS */

/**
 * The GLXGraphicsConfigInfo structure contains information specific to a
 * given GLXGraphicsConfig (visual).  Each AwtGraphicsConfigData struct
 * associated with a GLXGraphicsConfig contains a pointer to a
 * GLXGraphicsConfigInfo struct (if it is actually an X11GraphicsConfig, that
 * pointer value will be NULL).
 *
 *     jint screen, visual;
 * The X11 screen and visual IDs for the associated GLXGraphicsConfig.
 *
 *     OGLContext *context;
 * The context associated with this GLXGraphicsConfig.
 *
 *     GLXFBConfig fbconfig;
 * A handle used in many GLX methods for querying certain attributes of the
 * GraphicsConfig (visual), creating new GLXContexts, and creating
 * GLXDrawable surfaces (pbuffers, etc).  Each GraphicsConfig has one
 * associated GLXFBConfig.
 */
typedef struct _GLXGraphicsConfigInfo {
    jint          screen;
    jint          visual;
    OGLContext    *context;
    GLXFBConfig   fbconfig;
} GLXGraphicsConfigInfo;

/**
 * The GLXCtxInfo structure contains the native GLXContext information
 * required by and is encapsulated by the platform-independent OGLContext
 * structure.
 *
 *     GLXContext context;
 * The core native GLX context.  Rendering commands have no effect until a
 * GLXContext is made current (active).
 *
 *     GLXFBConfig fbconfig;
 * This is the same GLXFBConfig that is stored in the GLXGraphicsConfigInfo
 * whence this GLXContext was created.  It is provided here for convenience.
 *
 *     GLXPbuffer  scratchSurface;
 * The scratch surface, which is used to make a context current when we do

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