org.lwjgl.opengl.EXTBlendEquationSeparate 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 EXT_blend_equation_separate extension.
 * 
 * EXT_blend_func_separate introduced separate RGB and alpha blend factors. EXT_blend_minmax introduced a
 * distinct blend equation for combining source and destination blend terms. (EXT_blend_subtract_blend_subtract &
 * EXT_blend_logic_op added other blend equation modes.) OpenGL 1.4 integrated both functionalities into the core standard.
 * 
 * While there are separate blend functions for the RGB and alpha blend factors, OpenGL 1.4 provides a single blend equation that applies to both RGB and
 * alpha portions of blending.
 * 
 * This extension provides a separate blend equation for RGB and alpha to match the generality available for blend factors.
 * 
 * Requires {@link GL14 OpenGL 1.4} or {@link ARBImaging ARB_imaging} or EXT_blend_minmax and/or
 * EXT_blend_subtract_blend_subtract. Promoted to core in {@link GL20 OpenGL 2.0}.
 */
public class EXTBlendEquationSeparate {

    /** Accepted by the {@code pname} parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev. */
    public static final int
        GL_BLEND_EQUATION_RGB_EXT   = 0x8009,
        GL_BLEND_EQUATION_ALPHA_EXT = 0x883D;

    static { GL.initialize(); }

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

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

    // --- [ glBlendEquationSeparateEXT ] ---

    public static native void glBlendEquationSeparateEXT(int modeRGB, int modeAlpha);

}