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Java example source code file (WGLGraphicsConfig.h)

This example Java source code file (WGLGraphicsConfig.h) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awtcomponent_gethwnd, hdc, hglrc, hpbufferarb, hwnd, oglcontext, wglctxinfo, wglgc_createscratchwindow, wglgraphicsconfig_h_included, wglgraphicsconfiginfo

The WGLGraphicsConfig.h Java example source code

/*
 * Copyright (c) 2004, 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
 * questions.
 */

#ifndef WGLGraphicsConfig_h_Included
#define WGLGraphicsConfig_h_Included

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

/**
 * The WGLGraphicsConfigInfo structure contains information specific to a
 * given WGLGraphicsConfig (pixel format).
 *
 *     jint screen, pixfmt;
 * The screen and PixelFormat for the associated WGLGraphicsConfig.
 *
 *     OGLContext *context;
 * The context associated with this WGLGraphicsConfig.
 */
typedef struct _WGLGraphicsConfigInfo {
    jint       screen;
    jint       pixfmt;
    OGLContext *context;
} WGLGraphicsConfigInfo;

/**
 * The WGLCtxInfo structure contains the native WGLContext information
 * required by and is encapsulated by the platform-independent OGLContext
 * structure.
 *
 *     HGLRC context;
 * The core native WGL context.  Rendering commands have no effect until a
 * context is made current (active).
 *
 *     HPBUFFERARB scratchSurface;
 *     HDC         scratchSurfaceDC;
 * The scratch surface (and its associated HDC), which are used to make a
 * context current when we do not otherwise have a reference to an OpenGL
 * surface for the purposes of making a context current.
 */
typedef struct _WGLCtxInfo {
    HGLRC       context;
    HPBUFFERARB scratchSurface;
    HDC         scratchSurfaceDC;
} WGLCtxInfo;

/**
 * Utility methods
 */
HWND WGLGC_CreateScratchWindow(jint screennum);

/**
 * REMIND: ideally, this would be declared in AwtComponent.h, but including
 *         that C++ header file from C source files causes problems...
 */
extern HWND AwtComponent_GetHWnd(JNIEnv *env, jlong pData);

#endif /* WGLGraphicsConfig_h_Included */

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