org.lwjgl.opengl.NVFragmentCoverageToColor Maven / Gradle / Ivy

/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.opengl;

import static org.lwjgl.system.Checks.*;

/**
 * Native bindings to the NV_fragment_coverage_to_color extension.
 * 
 * This extension allows the fragment coverage value, represented as an
 * integer bitfield, to be substituted for a color output being written to a
 * single-component color buffer with integer components (e.g., R8UI).  The
 * capability provided by this extension is different from simply writing the
 * gl_SampleMask fragment shader output in that the coverage value written to
 * the framebuffer is taken after alpha test, stencil test, and depth test,
 * as well as after the multisample fragment operations such as
 * alpha-to-coverage.
 */
public class NVFragmentCoverageToColor {

    /** Accepted by the {@code cap} parameter of Enable, Disable, IsEnabled. */
    public static final int GL_FRAGMENT_COVERAGE_TO_COLOR_NV = 0x92DD;

    /** Accepted by the {@code pname} parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv. */
    public static final int GL_FRAGMENT_COVERAGE_COLOR_NV = 0x92DE;

    static { GL.initialize(); }

    protected NVFragmentCoverageToColor() {
        throw new UnsupportedOperationException();
    }

    static boolean isAvailable(GLCapabilities caps) {
        return checkFunctions(
            caps.glFragmentCoverageColorNV
        );
    }

    // --- [ glFragmentCoverageColorNV ] ---

    /** @param color the draw buffer index that the coverage value will be written to. Must be between 0 and the value of MAX_DRAW_BUFFERS minus one, inclusive. */
    public static native void glFragmentCoverageColorNV(int color);

}