sl@0: /*
sl@0: * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #ifndef _JPEG_DECODER_H_
sl@0: #define _JPEG_DECODER_H_
sl@0: 
sl@0: #include <stdint.h>
sl@0: 
sl@0: #define JPEG_MARKER_STUFFED		0x00
sl@0: #define JPEG_MARKER_TEM			0x01
sl@0: #define JPEG_MARKER_RES			0x02
sl@0: 
sl@0: #define JPEG_MARKER_SOF_0		0xc0
sl@0: #define JPEG_MARKER_SOF_1		0xc1
sl@0: #define JPEG_MARKER_SOF_2		0xc2
sl@0: #define JPEG_MARKER_SOF_3		0xc3
sl@0: #define JPEG_MARKER_DEFINE_HUFFMAN_TABLES		0xc4
sl@0: #define JPEG_MARKER_SOF_5		0xc5
sl@0: #define JPEG_MARKER_SOF_6		0xc6
sl@0: #define JPEG_MARKER_SOF_7		0xc7
sl@0: #define JPEG_MARKER_JPG			0xc8
sl@0: #define JPEG_MARKER_SOF_9		0xc9
sl@0: #define JPEG_MARKER_SOF_10		0xca
sl@0: #define JPEG_MARKER_SOF_11		0xcb
sl@0: #define JPEG_MARKER_DEFINE_ARITHMETIC_CONDITIONING	0xcc
sl@0: #define JPEG_MARKER_SOF_13		0xcd
sl@0: #define JPEG_MARKER_SOF_14		0xce
sl@0: #define JPEG_MARKER_SOF_15		0xcf
sl@0: 
sl@0: #define JPEG_MARKER_RST_0		0xd0
sl@0: #define JPEG_MARKER_RST_1		0xd1
sl@0: #define JPEG_MARKER_RST_2		0xd2
sl@0: #define JPEG_MARKER_RST_3		0xd3
sl@0: #define JPEG_MARKER_RST_4		0xd4
sl@0: #define JPEG_MARKER_RST_5		0xd5
sl@0: #define JPEG_MARKER_RST_6		0xd6
sl@0: #define JPEG_MARKER_RST_7		0xd7
sl@0: 
sl@0: #define JPEG_MARKER_SOI			0xd8
sl@0: #define JPEG_MARKER_EOI			0xd9
sl@0: #define JPEG_MARKER_SOS			0xda
sl@0: #define JPEG_MARKER_DEFINE_QUANTIZATION_TABLES		0xdb
sl@0: #define JPEG_MARKER_DNL			0xdc
sl@0: #define JPEG_MARKER_DEFINE_RESTART_INTERVAL		0xdd
sl@0: #define JPEG_MARKER_DHP			0xde
sl@0: #define JPEG_MARKER_EXP			0xdf
sl@0: #define JPEG_MARKER_APP(x)		(0xe0 + (x))
sl@0: #define JPEG_MARKER_JPG_(x)		(0xf0 + (x))
sl@0: #define JPEG_MARKER_COMMENT                             0xfe
sl@0: 
sl@0: #define JPEG_MARKER_JFIF		JPEG_MARKER_APP(0)
sl@0: 
sl@0: #define JPEG_MARKER_IS_START_OF_FRAME(x) ((x)>=0xc0 && (x) <= 0xcf && (x)!=0xc4 && (x)!=0xc8 && (x)!=0xcc)
sl@0: #define JPEG_MARKER_IS_APP(x) ((x)>=0xe0 && (x) <= 0xef)
sl@0: #define JPEG_MARKER_IS_RESET(x) ((x)>=0xd0 && (x)<=0xd7)
sl@0: 
sl@0: 
sl@0: typedef struct _JpegDecoder JpegDecoder;
sl@0: 
sl@0: 
sl@0: JpegDecoder *jpeg_decoder_new(void);
sl@0: void jpeg_decoder_free(JpegDecoder *dec);
sl@0: int jpeg_decoder_addbits(JpegDecoder *dec, unsigned char *data, unsigned int len);
sl@0: int jpeg_decoder_decode (JpegDecoder *dec);
sl@0: int jpeg_decoder_get_image_size(JpegDecoder *dec, int *width, int *height);
sl@0: int jpeg_decoder_get_component_size(JpegDecoder *dec, int id,
sl@0: 	int *width, int *height);
sl@0: int jpeg_decoder_get_component_subsampling(JpegDecoder *dec, int id,
sl@0: 	int *h_subsample, int *v_subsample);
sl@0: int jpeg_decoder_get_component_ptr(JpegDecoder *dec, int id,
sl@0: 	unsigned char **image, int *rowstride);
sl@0: 
sl@0: unsigned char *jpeg_decoder_get_argb_image (JpegDecoder *dec);
sl@0: int jpeg_decode_argb (uint8_t *data, int length, uint32_t **image,
sl@0:     int *width, int *height);
sl@0: 
sl@0: #endif
sl@0: