?? dpcmprocess.h
字號(hào):
// DpcmProcess.h: interface for the CDpcmProcess class.
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_DPCMPROCESS_H__E99729C4_31F0_440C_862D_B04758E81C95__INCLUDED_)
#define AFX_DPCMPROCESS_H__E99729C4_31F0_440C_862D_B04758E81C95__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "CommonDecls.h"
//--------------------------------------------------------------------------
#define V(a,b,c,d) (((INT32)a << 16) | ((INT32)c << 8) | ((INT32)d << 7) | b)
#define RIGHT_SHIFT (x,shft) x>=0 ? x>>shft : -((-x)>>shft)
const INT32 jaritab[113] = {
/*
* Index, Qe_Value, Next_Index_LPS, Next_Index_MPS, Switch_MPS
*/
/* 0 */ V( 0x5a1d, 1, 1, 1 ),
/* 1 */ V( 0x2586, 14, 2, 0 ),
/* 2 */ V( 0x1114, 16, 3, 0 ),
/* 3 */ V( 0x080b, 18, 4, 0 ),
/* 4 */ V( 0x03d8, 20, 5, 0 ),
/* 5 */ V( 0x01da, 23, 6, 0 ),
/* 6 */ V( 0x00e5, 25, 7, 0 ),
/* 7 */ V( 0x006f, 28, 8, 0 ),
/* 8 */ V( 0x0036, 30, 9, 0 ),
/* 9 */ V( 0x001a, 33, 10, 0 ),
/* 10 */ V( 0x000d, 35, 11, 0 ),
/* 11 */ V( 0x0006, 9, 12, 0 ),
/* 12 */ V( 0x0003, 10, 13, 0 ),
/* 13 */ V( 0x0001, 12, 13, 0 ),
/* 14 */ V( 0x5a7f, 15, 15, 1 ),
/* 15 */ V( 0x3f25, 36, 16, 0 ),
/* 16 */ V( 0x2cf2, 38, 17, 0 ),
/* 17 */ V( 0x207c, 39, 18, 0 ),
/* 18 */ V( 0x17b9, 40, 19, 0 ),
/* 19 */ V( 0x1182, 42, 20, 0 ),
/* 20 */ V( 0x0cef, 43, 21, 0 ),
/* 21 */ V( 0x09a1, 45, 22, 0 ),
/* 22 */ V( 0x072f, 46, 23, 0 ),
/* 23 */ V( 0x055c, 48, 24, 0 ),
/* 24 */ V( 0x0406, 49, 25, 0 ),
/* 25 */ V( 0x0303, 51, 26, 0 ),
/* 26 */ V( 0x0240, 52, 27, 0 ),
/* 27 */ V( 0x01b1, 54, 28, 0 ),
/* 28 */ V( 0x0144, 56, 29, 0 ),
/* 29 */ V( 0x00f5, 57, 30, 0 ),
/* 30 */ V( 0x00b7, 59, 31, 0 ),
/* 31 */ V( 0x008a, 60, 32, 0 ),
/* 32 */ V( 0x0068, 62, 33, 0 ),
/* 33 */ V( 0x004e, 63, 34, 0 ),
/* 34 */ V( 0x003b, 32, 35, 0 ),
/* 35 */ V( 0x002c, 33, 9, 0 ),
/* 36 */ V( 0x5ae1, 37, 37, 1 ),
/* 37 */ V( 0x484c, 64, 38, 0 ),
/* 38 */ V( 0x3a0d, 65, 39, 0 ),
/* 39 */ V( 0x2ef1, 67, 40, 0 ),
/* 40 */ V( 0x261f, 68, 41, 0 ),
/* 41 */ V( 0x1f33, 69, 42, 0 ),
/* 42 */ V( 0x19a8, 70, 43, 0 ),
/* 43 */ V( 0x1518, 72, 44, 0 ),
/* 44 */ V( 0x1177, 73, 45, 0 ),
/* 45 */ V( 0x0e74, 74, 46, 0 ),
/* 46 */ V( 0x0bfb, 75, 47, 0 ),
/* 47 */ V( 0x09f8, 77, 48, 0 ),
/* 48 */ V( 0x0861, 78, 49, 0 ),
/* 49 */ V( 0x0706, 79, 50, 0 ),
/* 50 */ V( 0x05cd, 48, 51, 0 ),
/* 51 */ V( 0x04de, 50, 52, 0 ),
/* 52 */ V( 0x040f, 50, 53, 0 ),
/* 53 */ V( 0x0363, 51, 54, 0 ),
/* 54 */ V( 0x02d4, 52, 55, 0 ),
/* 55 */ V( 0x025c, 53, 56, 0 ),
/* 56 */ V( 0x01f8, 54, 57, 0 ),
/* 57 */ V( 0x01a4, 55, 58, 0 ),
/* 58 */ V( 0x0160, 56, 59, 0 ),
/* 59 */ V( 0x0125, 57, 60, 0 ),
/* 60 */ V( 0x00f6, 58, 61, 0 ),
/* 61 */ V( 0x00cb, 59, 62, 0 ),
/* 62 */ V( 0x00ab, 61, 63, 0 ),
/* 63 */ V( 0x008f, 61, 32, 0 ),
/* 64 */ V( 0x5b12, 65, 65, 1 ),
/* 65 */ V( 0x4d04, 80, 66, 0 ),
/* 66 */ V( 0x412c, 81, 67, 0 ),
/* 67 */ V( 0x37d8, 82, 68, 0 ),
/* 68 */ V( 0x2fe8, 83, 69, 0 ),
/* 69 */ V( 0x293c, 84, 70, 0 ),
/* 70 */ V( 0x2379, 86, 71, 0 ),
/* 71 */ V( 0x1edf, 87, 72, 0 ),
/* 72 */ V( 0x1aa9, 87, 73, 0 ),
/* 73 */ V( 0x174e, 72, 74, 0 ),
/* 74 */ V( 0x1424, 72, 75, 0 ),
/* 75 */ V( 0x119c, 74, 76, 0 ),
/* 76 */ V( 0x0f6b, 74, 77, 0 ),
/* 77 */ V( 0x0d51, 75, 78, 0 ),
/* 78 */ V( 0x0bb6, 77, 79, 0 ),
/* 79 */ V( 0x0a40, 77, 48, 0 ),
/* 80 */ V( 0x5832, 80, 81, 1 ),
/* 81 */ V( 0x4d1c, 88, 82, 0 ),
/* 82 */ V( 0x438e, 89, 83, 0 ),
/* 83 */ V( 0x3bdd, 90, 84, 0 ),
/* 84 */ V( 0x34ee, 91, 85, 0 ),
/* 85 */ V( 0x2eae, 92, 86, 0 ),
/* 86 */ V( 0x299a, 93, 87, 0 ),
/* 87 */ V( 0x2516, 86, 71, 0 ),
/* 88 */ V( 0x5570, 88, 89, 1 ),
/* 89 */ V( 0x4ca9, 95, 90, 0 ),
/* 90 */ V( 0x44d9, 96, 91, 0 ),
/* 91 */ V( 0x3e22, 97, 92, 0 ),
/* 92 */ V( 0x3824, 99, 93, 0 ),
/* 93 */ V( 0x32b4, 99, 94, 0 ),
/* 94 */ V( 0x2e17, 93, 86, 0 ),
/* 95 */ V( 0x56a8, 95, 96, 1 ),
/* 96 */ V( 0x4f46, 101, 97, 0 ),
/* 97 */ V( 0x47e5, 102, 98, 0 ),
/* 98 */ V( 0x41cf, 103, 99, 0 ),
/* 99 */ V( 0x3c3d, 104, 100, 0 ),
/* 100 */ V( 0x375e, 99, 93, 0 ),
/* 101 */ V( 0x5231, 105, 102, 0 ),
/* 102 */ V( 0x4c0f, 106, 103, 0 ),
/* 103 */ V( 0x4639, 107, 104, 0 ),
/* 104 */ V( 0x415e, 103, 99, 0 ),
/* 105 */ V( 0x5627, 105, 106, 1 ),
/* 106 */ V( 0x50e7, 108, 107, 0 ),
/* 107 */ V( 0x4b85, 109, 103, 0 ),
/* 108 */ V( 0x5597, 110, 109, 0 ),
/* 109 */ V( 0x504f, 111, 107, 0 ),
/* 110 */ V( 0x5a10, 110, 111, 1 ),
/* 111 */ V( 0x5522, 112, 109, 0 ),
/* 112 */ V( 0x59eb, 112, 111, 1 )
};
typedef enum { /* JPEG marker codes */
M_SOF0 = 0xc0,
M_SOF1 = 0xc1,
M_SOF2 = 0xc2,
M_SOF3 = 0xc3,
M_SOF5 = 0xc5,
M_SOF6 = 0xc6,
M_SOF7 = 0xc7,
M_JPG = 0xc8,
M_SOF9 = 0xc9,
M_SOF10 = 0xca,
M_SOF11 = 0xcb,
M_SOF13 = 0xcd,
M_SOF14 = 0xce,
M_SOF15 = 0xcf,
M_DHT = 0xc4,
M_DAC = 0xcc,
M_RST0 = 0xd0,
M_RST1 = 0xd1,
M_RST2 = 0xd2,
M_RST3 = 0xd3,
M_RST4 = 0xd4,
M_RST5 = 0xd5,
M_RST6 = 0xd6,
M_RST7 = 0xd7,
M_SOI = 0xd8,
M_EOI = 0xd9,
M_SOS = 0xda,
M_DQT = 0xdb,
M_DNL = 0xdc,
M_DRI = 0xdd,
M_DHP = 0xde,
M_EXP = 0xdf,
M_APP0 = 0xe0,
M_APP1 = 0xe1,
M_APP2 = 0xe2,
M_APP3 = 0xe3,
M_APP4 = 0xe4,
M_APP5 = 0xe5,
M_APP6 = 0xe6,
M_APP7 = 0xe7,
M_APP8 = 0xe8,
M_APP9 = 0xe9,
M_APP10 = 0xea,
M_APP11 = 0xeb,
M_APP12 = 0xec,
M_APP13 = 0xed,
M_APP14 = 0xee,
M_APP15 = 0xef,
M_JPG0 = 0xf0,
M_JPG13 = 0xfd,
M_COM = 0xfe,
M_TEM = 0x01,
M_ERROR = 0x100
} JPEG_MARKER;
#define PIXEL unsigned char
#define UNI_TYPE int
#define T1 3
#define T2 7
#define T3 21
#define NEAR 6
#define PREDICTION(Rb, Ra, Rc,Px) \
{ \
register PIXEL minx; \
register PIXEL maxx; \
\
if (Rb > Ra) { \
minx = Ra; \
maxx = Rb; \
} else { \
maxx = Ra; \
minx = Rb; \
} \
if (Rc >= maxx) \
Px = minx; \
else if (Rc <= minx) \
Px = maxx; \
else \
Px = Ra + Rb - Rc; \
}
#define QUAN_GRAD(D,q) if (D<=-T3)q=-4;\
else if (D<=-T2) q=-3;\
else if (D<=-T1) q=-2;\
else if (D< -NEAR) q=-1;\
else if (D<=NEAR) q=0;\
else if (D<T1) q=1;\
else if (D<T2) q=2;\
else if (D<T3) q=3;\
else q=4
#define PO_OR_NE(Q) *sign_ptr= Q >= 0 ? 1 : (-1)
#define MAKE_FIRST_POSITIVE(Q1,Q2,Q3) Q1 *=*sign_ptr;Q2 *=*sign_ptr;Q3 *=*sign_ptr
#define ABS(Q) Q >= 0 ? Q : -Q
class CDpcmProcess
{
public:
void Compress_Data(j_compress_ptr cinfo,int i);
void Input_Image_Data(j_compress_ptr cinfo);
void Free_Mem(j_compress_ptr cinfo);
JSAMPARRAY Alloc_Sarray (JDIMENSION samplesperrow, JDIMENSION numrows,j_compress_ptr cinfo);
void * Alloc_One_Row(j_compress_ptr cinfo,size_t size_object);
int Get_Errval(j_compress_ptr cinfo,int Ra, PIXEL Rb, int Rc,PIXEL Rd,PIXEL *x);
int Find_Bin(UNI_TYPE Q1,UNI_TYPE Q2,UNI_TYPE Q3,UNI_TYPE *sign_ptr);
void Write_File_Trailer (j_compress_ptr cinfo);
void Write_File_Header (j_compress_ptr cinfo);
void Emit_2Bytes (j_compress_ptr cinfo, int value);
void Emit_Marker (j_compress_ptr cinfo, JPEG_MARKER mark);
void Emit_Byte (j_compress_ptr cinfo, int val);
void Empty_Output_Buffer (j_compress_ptr cinfo);
void Encode_Row (j_compress_ptr cinfo,JSAMPROW row,int i);
void Arith_Encode (j_compress_ptr cinfo, unsigned char *st, int val);
void Flush_Bits (j_compress_ptr cinfo);
CDpcmProcess();
virtual ~CDpcmProcess();
void Initial_Decoder(j_compress_ptr cinfo);
void Decode_Row(j_compress_ptr cinfo , int i);
int Arith_Decode(j_compress_ptr cinfo, unsigned char * st);
int Get_Byte(j_compress_ptr cinfo);
void Fill_Input_Buffer(j_compress_ptr cinfo);
int Return_Pixel_Val(j_compress_ptr cinfo , int Ra, PIXEL Rb, int Rc, PIXEL Rd, int errval);
};
#endif // !defined(AFX_DPCMPROCESS_H__E99729C4_31F0_440C_862D_B04758E81C95__INCLUDED_)
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