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/*
 * Common.h
 *
 * This module provides the common defines used by all the modules.
 *
 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
 * ALL RIGHTS RESERVED
 *
*/

#ifndef COMMON_H_
#define COMMON_H_

#include <stdlib.h>
#include <string.h>
#include <ctype.h>


#ifdef __cplusplus
extern "C" {
#endif

#define TRUE                    1
#define FALSE                   0

typedef enum
{
        IMAGE_PIX_FORMAT_RGB32,
        IMAGE_PIX_FORMAT_GREY8,
        IMAGE_PIX_FORMAT_GREY10,
        IMAGE_PIX_FORMAT_UYVY16,
        IMAGE_PIX_FORMAT_RGB16,
        IMAGE_PIX_FORMAT_SBGGR,
        IMAGE_PIX_FORMAT_RGB24,
} ImagePixFormat_t;

typedef struct
{
        unsigned char *Buffer;
        unsigned Width;
        unsigned Height;
        unsigned LineWidth;
        ImagePixFormat_t PixFormat;
}Image_t;


typedef int BOOL;
typedef unsigned uint32;
typedef unsigned char uint8;
typedef unsigned short uint16;

typedef uint16 PatternCount_t;

#define MIN(a, b)                                       ((a) < (b) ? (a) : (b))
#define MAX(a, b)                                       ((a) > (b) ? (a) : (b))
#define ALIGN_BYTES_PREV(x, b)      ((x) & ~(uint32)((b) - 1))
#define ALIGN_BYTES_NEXT(x, b)      (((x) + ((b)-1)) & ~(uint32)((b) - 1))

#define GET_BYTE0(x)                            ((x) & 0xFF)
#define GET_BYTE1(x)                            (((x) >> 8) & 0xFF)
#define GET_BYTE2(x)                            (((x) >> 16) & 0xFF)
#define GET_BYTE3(x)                            (((x) >> 24) & 0xFF)

#define PARSE_WORD16_LE(Arr)        MAKE_WORD16((Arr)[1], (Arr)[0])
#define PARSE_WORD16_BE(Arr)        MAKE_WORD16((Arr)[0], (Arr)[1])
#define PARSE_WORD24_LE(Arr)        MAKE_WORD32(0, (Arr)[2], (Arr)[1], (Arr)[0])
#define PARSE_WORD24_BE(Arr)        MAKE_WORD32(0, (Arr)[0], (Arr)[1], (Arr)[2])
#define PARSE_WORD32_LE(Arr)        MAKE_WORD32((Arr)[3], (Arr)[2], (Arr)[1], (Arr)[0])
#define PARSE_WORD32_BE(Arr)        MAKE_WORD32((Arr)[0], (Arr)[1], (Arr)[2], (Arr)[3])

#define MAKE_WORD16(b1, b0)         (((b1) << 8) | (b0))
#define MAKE_WORD32(b3, b2, b1, b0) (((uint32)(b3)<<24)|((uint32)(b2)<<16)|((uint32)(b1)<<8)|(b0))

#define ARRAY_SIZE(x)               (sizeof(x)/sizeof(*x))
#define DIV_ROUND(x, y)             (((x)+(y)/2)/(y))
#define DIV_CEIL(x, y)              (((x)+(y)-1)/(y))
#define POW_OF_2(x)                 (1ul << (x))

#define IS_POW_OF_2(x)              (((x) & ((x)-1)) == 0)

// Generate bit mask of n bits starting from s bit
#define GEN_BIT_MASK(s, n)          (((1ul << (n)) - 1) << (s))

// Merge bits b into a according to mask
#define MERGE_BITS(a, b, mask)      ((a) ^ (((a) ^ (b)) & (mask)))

#define STRUCT_CLEAR(s)                         (memset(&(s), 0, sizeof(s)))
#define BIT_REVERSE(x)                          CMN_BitRevLUT[(uint8)(x)]

#define STR(x)  STR_(x)
#define STR_(x) #x

extern const uint8 CMN_BitRevLUT[];
void PrintArray(char const *Prefix, uint8 const *Array, unsigned Size, BOOL Hex);
uint32 GetImagePixel(Image_t *Image, int x, int y);
uint32 Next2Power(uint32 Value);
unsigned Hex2BinArray(char *HexStr, unsigned Size, uint8 *BinArray);
int TrimString(char const *Input, char *Output);
int WriteTextToFile(char const *File, int Num, char const *Text);
int ReadTextFromFile(char const *File, int Num, char *Text, int Len);
BOOL FileExist(char const *File, int Num);

#ifdef __cplusplus
}
#endif


#endif /* COMMON_H_ */