org.eclipse.swt.opengl.GLData.java Source code

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Here is the source code for org.eclipse.swt.opengl.GLData.java

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/*******************************************************************************
 * Copyright (c) 2005, 2009 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.opengl;

/**
 * The GLData class is a device-independent description
 * of the pixel format attributes of a GL drawable.
 *
 * @see GLCanvas
 * @see <a href="http://www.eclipse.org/swt/snippets/#opengl">OpenGL snippets</a>
 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
 *
 * @since 3.2
 */

public class GLData {
    /**
     * Specifies a double-buffered surface.  During context
     * creation, only double-buffered formats are considered
     * when set to true.
     */
    public boolean doubleBuffer;

    /**
     * Specifies a stereo surface.  During context creation,
     * only stereo formats are considered when set to true.
     */
    public boolean stereo;

    /**
     * The size in bits of the color buffer's red channel.
     * During context creation, this specifies the minimum
     * required red bits.
     */
    public int redSize;

    /**
     * The size in bits of the color buffer's green channel.
     * During context creation, this specifies the minimum
     * required green bits.
     */
    public int greenSize;

    /**
     * The size in bits of the color buffer's blue channel.
     * During context creation, this specifies the minimum
     * required blue bits.
     */
    public int blueSize;

    /**
     * The size in bits of the color buffer's alpha channel.
     * During context creation, this specifies the minimum
     * required alpha bits.
     */
    public int alphaSize;

    /**
     * The size in bits of the depth buffer.  During context
     * creation, the smallest depth buffer of at least the
     * specified value is preferred, or zero for no depth
     * buffer.
     */
    public int depthSize;

    /**
     * The desired number of stencil bitplanes.  During
     * context creation, the smallest stencil buffer of at
     * least the specified value is preferred, or zero for
     * no stencil buffer.
     */
    public int stencilSize;

    /**
     * The size in bits of the accumulation buffer's red
     * channel. During context creation, this specifies the
     * minimum required red bits.
     */
    public int accumRedSize;

    /**
     * The size in bits of the accumulation buffer's green
     * channel. During context creation, this specifies the
     * minimum required green bits.
     */
    public int accumGreenSize;

    /**
     * The size in bits of the accumulation buffer's blue
     * channel. During context creation, this specifies the
     * minimum required blue bits.
     */
    public int accumBlueSize;

    /**
     * The size in bits of the accumulation buffer's alpha
     * channel. During context creation, this specifies the
     * minimum required alpha bits.
     */
    public int accumAlphaSize;

    /**
     * The number of multisample buffers used by this context.
     * During context creation, this specifies the minimum
     * number of multisample buffers requested.
     */
    public int sampleBuffers;

    /**
     * The number of samples accepted in the multisample buffer.
     * During creation, pixel formats with the smallest number of
     * samples that meets or exceeds the specified minimum number
     * are preferred.
     */
    public int samples;

    /**
     * Another GLCanvas whose texture namespace and display lists
     * should be shared.
     *
     * @since 3.5
     */
    public GLCanvas shareContext;

    /**
     * Returns a string containing a concise, human-readable
     * description of the receiver.
     *
     * @return a string representation of the data
     */
    @Override
    public String toString() {
        return (doubleBuffer ? "doubleBuffer," : "") + (stereo ? "stereo," : "") + "r:" + redSize + " g:"
                + greenSize + " b:" + blueSize + " a:" + alphaSize + "," + "depth:" + depthSize + ",stencil:"
                + stencilSize + ",accum r:" + accumRedSize + "g:" + accumGreenSize + "b:" + accumBlueSize + "a:"
                + accumAlphaSize + ",sampleBuffers:" + sampleBuffers + ",samples:" + samples;
    }
}