ae_awb.h

最新MTK手机软件源码

/*****************************************************************************
*  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) 2005
*
*  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:
 * ---------
 *   ae_awb.h
 *
 * Project:
 * --------
 *   MT6219,MT6226,MT6227,MT6228,MT6229
 *
 * Description:
 * ------------
 *   Auto Exposure and Auto White Balance Algorithm
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
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 *============================================================================
 ****************************************************************************/
#if (defined(ISP_SUPPORT))

#ifndef _AE_AWB_H
#define _AE_AWB_H

#include "exif.h"

#define	ISP_ON		1
#define	ISP_OFF		0

#define	AE_EXPO_MAX		528		/* maximum exposure line */
#define	AE_EXPO_MIN		3			/* minimum exposure line */
#define	PREGAIN_MAX		0xC0		/* pregain upper bound  */
#define	PREGAIN_MIN		0x40		/* unit gain */
#define 	PREGAIN_MIN_LIMIT	0x3C	/* pregain lower bound  */

#define	BAND_60HZ		0
#define	BAND_50HZ		1

#define	CLOUD				0
#define	DAYLIGHT			1
#define	INCANDESCENCE	2
#define	FLUORESCENT 	3
#define	TUNGSTEN			4

#define	ONE_STEP			1
#define	TWO_STEP			2
#define	THREE_STEP		3
#define	FOUR_STEP		4

#define	ISP_GAIN_PRIORITY			0
#define	SENSOR_GAIN_PRIORITY		1

#define	ISP_ONLY				0
#define	SENSOR_ONLY			1
#define	ISP_SENSOR_BOTH	2

#define	QUALITY_PRIORITY			0
#define	FRAME_RATE_PRIORITY		1

typedef enum
{
	AE_METERING_CENTER = 1,					// SPOT
	AE_METERING_EXCESSIVE_BACKLIGHT,		// WEIGHT
	AE_METERING_BACKLIGHT_WEIGHT,			// WEIGHT
	AE_METERING_AVGERAGE						// AVERAGE