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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
 */
package org.lwjgl.opengles;

import static org.lwjgl.opengles.GLES20.*;
import static org.lwjgl.opengles.GLES30.*;
import static org.lwjgl.opengles.NVGPUShader5.*;
import static org.lwjgl.system.APIUtil.*;

final class GLESChecks {

	private GLESChecks() {
	}

	/**
	 * Returns the power-of-two of the number of bytes required to store the specified OpenGL ES type.
	 *
	 * @param type the OpenGL ES type to translate
	 *
	 * @return the number of bytes PoT value
	 */
	static int typeToByteShift(int type) {
		switch ( type ) {
			case GL_BYTE:
			case GL_UNSIGNED_BYTE:
				return 0;
			case GL_SHORT:
			case GL_UNSIGNED_SHORT:
			case GL_HALF_FLOAT:
				return 1;
			case GL_INT:
			case GL_UNSIGNED_INT:
			case GL_FLOAT:
			case GL_FIXED:
				return 2;
			case GL_INT64_NV:
			case GL_UNSIGNED_INT64_NV:
				return 3;
			default:
				throw new IllegalArgumentException(apiUnknownToken("Unsupported OpenGL ES type", type));
		}
	}

}