iul_rng.h
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/*****************************************************************************
* Copyright Statement:
* --------------------
* This software is protected by Copyright and the information contained
* herein is confidential. The software may not be copied and the information
* contained herein may not be used or disclosed except with the written
* permission of MediaTek Inc. (C) 2007
*
* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
* NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
* SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
* LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
* RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
* THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/
/*****************************************************************************
*
* Filename:
* ---------
* iul_rng.h
*
* Project:
* --------
* N/A
*
* Description:
* ------------
* Image Utility Lirary: macros for random number generation
*
* Author:
* -------
* -------
*
*============================================================================
* HISTORY
* Below this line, this part is controlled by ClearCase. DO NOT MODIFY!!
*------------------------------------------------------------------------------
* $Log$
*
* 11 23 2010 rey.su
* removed!
* .
*
* removed!
* removed!
*
*
* removed!
* removed!
* Code revise.
*
* removed!
* removed!
* Replace rand() with drv_get_current_time() for WMC initialization on MTK target.
*
* removed!
* removed!
* Add MediaTek SW disclaimer.
*
* removed!
* removed!
* Help Rey Su to check-in.
*
*------------------------------------------------------------------------------
* Upper this line, this part is controlled by ClearCase. DO NOT MODIFY!!
*============================================================================
****************************************************************************/
#ifndef __IUL_RNG_H__
#define __IUL_RNG_H__
#ifdef __MTK_TARGET__
/// Initialization for MWC on MTK target.
extern unsigned int drv_get_current_time(void);
#define IUL_RNG_MWC_INITIALIZE() \
unsigned int m_z = drv_get_current_time(); \
unsigned int m_w = m_z; \
#else
/// Initialization for MWC on WIN32 / Armulator.
#include "stdlib.h"
#define IUL_RNG_MWC_INITIALIZE() \
unsigned int m_z = rand(); \
unsigned int m_w = m_z; \
#endif
#define IUL_RNG_MWC_GENERATE(rnd) \
do { \
m_z = 36969 * (m_z & 65535) + (m_z >> 16); \
m_w = 18000 * (m_w & 65535) + (m_w >> 16); \
rnd = ((m_z << 16) + m_w); \
} while(0) \
#endif /// __IUL_RNG_H__