jpgopr.h

三星强片S3C6410的JPEG硬件部分的驱动代码

/*
 * Project Name JPEG DRIVER IN Linux
 * Copyright  2007 Samsung Electronics Co, Ltd. All Rights Reserved. 
 *
 * This software is the confidential and proprietary information
 * of Samsung Electronics  ("Confidential Information").   
 * you shall not disclose such Confidential Information and shall use
 * it only in accordance with the terms of the license agreement
 * you entered into with Samsung Electronics 
 *
 * This file implements JPEG driver.
 *
 * @name JPEG DRIVER MODULE Module (JPGOpr.h)
 * @author Jiun Yu ([e-mail])
 * @date 05-07-07
 */

#ifndef __JPG_OPR_H__
#define __JPG_OPR_H__


typedef enum tagJPG_RETURN_STATUS{
	JPG_FAIL,
	JPG_SUCCESS,
	OK_HD_PARSING,
	ERR_HD_PARSING,
	OK_ENC_OR_DEC,
	ERR_ENC_OR_DEC,
	ERR_UNKNOWN
}JPG_RETURN_STATUS;

typedef enum tagIMAGE_TYPE_T{
	JPG_RGB16,
	JPG_YCBYCR,
	JPG_TYPE_UNKNOWN
}IMAGE_TYPE_T;

typedef enum tagSAMPLE_MODE_T{
	JPG_444,
	JPG_422,
	JPG_420, 
	JPG_411,
	JPG_400,
	JPG_SAMPLE_UNKNOWN
}SAMPLE_MODE_T;

typedef enum tagENCDEC_TYPE_T{
	JPG_MAIN,
	JPG_THUMBNAIL
}ENCDEC_TYPE_T;

typedef enum tagIMAGE_QUALITY_TYPE_T{
	JPG_QUALITY_LEVEL_1 = 0, /*high quality*/
	JPG_QUALITY_LEVEL_2,
	JPG_QUALITY_LEVEL_3,
	JPG_QUALITY_LEVEL_4     /*low quality*/
}IMAGE_QUALITY_TYPE_T;

typedef struct tagJPG_DEC_PROC_PARAM{
	SAMPLE_MODE_T	sampleMode;
	ENCDEC_TYPE_T	decType;
	UINT32	width;
	UINT32	height;
	UINT32	dataSize;
	UINT32	fileSize;
} JPG_DEC_PROC_PARAM;

typedef struct tagJPG_ENC_PROC_PARAM{
	SAMPLE_MODE_T	sampleMode;
	ENCDEC_TYPE_T	encType;
	IMAGE_QUALITY_TYPE_T quality;
	UINT32	width;
	UINT32	height;
	UINT32	dataSize;
	UINT32	fileSize;
} JPG_ENC_PROC_PARAM;

JPG_RETURN_STATUS decodeJPG(S3C6400_JPG_CTX *jCTX, JPG_DEC_PROC_PARAM *decParam);
void resetJPG(S3C6400_JPG_CTX *jCTX);
void decodeHeader(S3C6400_JPG_CTX *jCTX);
void decodeBody(S3C6400_JPG_CTX *jCTX);
JPG_RETURN_STATUS waitForIRQ(S3C6400_JPG_CTX *jCTX);
SAMPLE_MODE_T getSampleType(S3C6400_JPG_CTX *jCTX);
void getXY(S3C6400_JPG_CTX *jCTX, UINT32 *x, UINT32 *y);
UINT32 getYUVSize(SAMPLE_MODE_T sampleMode, UINT32 width, UINT32 height);
BOOL isCorrectHeader(SAMPLE_MODE_T sampleMode, UINT32 *width, UINT32 *height);
void rewriteHeader(S3C6400_JPG_CTX *jCTX, UINT32 file_size, UINT32 width, UINT32 height);
void rewriteYUV(S3C6400_JPG_CTX *jCTX, UINT32 width, UINT32 orgwidth, UINT32 height, UINT32 orgheight);
JPG_RETURN_STATUS encodeJPG(S3C6400_JPG_CTX *jCTX, JPG_ENC_PROC_PARAM	*EncParam);

#endif