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A royalty-free, cross-platform API for full-function 2D and 3D graphics on embedded systems - including consoles, phones, appliances and vehicles.
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/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.opengles;

import java.nio.*;

import org.lwjgl.system.*;

import static org.lwjgl.system.Checks.*;
import static org.lwjgl.system.JNI.*;
import static org.lwjgl.system.MemoryStack.*;
import static org.lwjgl.system.MemoryUtil.*;

/**
 * Native bindings to the EXT_draw_buffers extension.
 * 
 * This extension increases the number of available framebuffer object color attachment points, extends OpenGL ES 2.0 to allow multiple output colors, and
 * provides a mechanism for directing those outputs to multiple color buffers.
 * 
 * This extension is similar to the combination of the GL_NV_draw_buffers and GL_NV_fbo_color_attachments extensions, but imposes certain restrictions
 * informed by the OpenGL ES 3.0 API.
 * 
 * Requires {@link GLES20 GLES 2.0}.
 */
public class EXTDrawBuffers {

	/** Accepted by the {@code pname} parameter of GetIntegerv. */
	public static final int GL_MAX_COLOR_ATTACHMENTS_EXT = 0x8CDF;

	/** Accepted by the {@code pname} parameters of GetIntegerv and GetFloatv. */
	public static final int
		GL_MAX_DRAW_BUFFERS_EXT = 0x8824,
		GL_DRAW_BUFFER0_EXT     = 0x8825,
		GL_DRAW_BUFFER1_EXT     = 0x8826,
		GL_DRAW_BUFFER2_EXT     = 0x8827,
		GL_DRAW_BUFFER3_EXT     = 0x8828,
		GL_DRAW_BUFFER4_EXT     = 0x8829,
		GL_DRAW_BUFFER5_EXT     = 0x882A,
		GL_DRAW_BUFFER6_EXT     = 0x882B,
		GL_DRAW_BUFFER7_EXT     = 0x882C,
		GL_DRAW_BUFFER8_EXT     = 0x882D,
		GL_DRAW_BUFFER9_EXT     = 0x882E,
		GL_DRAW_BUFFER10_EXT    = 0x882F,
		GL_DRAW_BUFFER11_EXT    = 0x8830,
		GL_DRAW_BUFFER12_EXT    = 0x8831,
		GL_DRAW_BUFFER13_EXT    = 0x8832,
		GL_DRAW_BUFFER14_EXT    = 0x8833,
		GL_DRAW_BUFFER15_EXT    = 0x8834;

	/**
	 * Accepted by the {@code attachment} parameter of FramebufferRenderbuffer, FramebufferTexture2D and GetFramebufferAttachmentParameteriv, and by the
	 * {@code bufs} parameter of DrawBuffersEXT.
	 */
	public static final int
		GL_COLOR_ATTACHMENT0_EXT  = 0x8CE0,
		GL_COLOR_ATTACHMENT1_EXT  = 0x8CE1,
		GL_COLOR_ATTACHMENT2_EXT  = 0x8CE2,
		GL_COLOR_ATTACHMENT3_EXT  = 0x8CE3,
		GL_COLOR_ATTACHMENT4_EXT  = 0x8CE4,
		GL_COLOR_ATTACHMENT5_EXT  = 0x8CE5,
		GL_COLOR_ATTACHMENT6_EXT  = 0x8CE6,
		GL_COLOR_ATTACHMENT7_EXT  = 0x8CE7,
		GL_COLOR_ATTACHMENT8_EXT  = 0x8CE8,
		GL_COLOR_ATTACHMENT9_EXT  = 0x8CE9,
		GL_COLOR_ATTACHMENT10_EXT = 0x8CEA,
		GL_COLOR_ATTACHMENT11_EXT = 0x8CEB,
		GL_COLOR_ATTACHMENT12_EXT = 0x8CEC,
		GL_COLOR_ATTACHMENT13_EXT = 0x8CED,
		GL_COLOR_ATTACHMENT14_EXT = 0x8CEE,
		GL_COLOR_ATTACHMENT15_EXT = 0x8CEF;

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

	static boolean isAvailable(GLESCapabilities caps) {
		return checkFunctions(
			caps.glDrawBuffersEXT
		);
	}

	// --- [ glDrawBuffersEXT ] ---

	public static void nglDrawBuffersEXT(int n, long bufs) {
		long __functionAddress = GLES.getCapabilities().glDrawBuffersEXT;
		if ( CHECKS )
			checkFunctionAddress(__functionAddress);
		callPV(__functionAddress, n, bufs);
	}

	public static void glDrawBuffersEXT(IntBuffer bufs) {
		nglDrawBuffersEXT(bufs.remaining(), memAddress(bufs));
	}

	public static void glDrawBuffersEXT(int buf) {
		MemoryStack stack = stackGet(); int stackPointer = stack.getPointer();
		try {
			IntBuffer bufs = stack.ints(buf);
			nglDrawBuffersEXT(1, memAddress(bufs));
		} finally {
			stack.setPointer(stackPointer);
		}
	}

	/** Array version of: {@link #glDrawBuffersEXT DrawBuffersEXT} */
	public static void glDrawBuffersEXT(int[] bufs) {
		long __functionAddress = GLES.getCapabilities().glDrawBuffersEXT;
		if ( CHECKS )
			checkFunctionAddress(__functionAddress);
		callPV(__functionAddress, bufs.length, bufs);
	}

}