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#include <stdio.h>
#include "dct.h"
#include "bmpjpeg.h"
#include "bmp.h"
#include "jpeg.h"
#define ENCODE 0
#define DECODE 1
#define MAXROWS 1024
#define MAXCOLS 768
#define HEADER 54
unsigned char Image1[MAXCOLS*3*MAXROWS+HEADER];
/*------------------------------------------*/
/* some constants for on-the-fly IQ and IZZ */
/*------------------------------------------*/
static const int G_ZZ[] = {
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63
};
int main(int argc, char *argv[]) {
int retval, i;
int workspace[DCTSIZE_BLOCK];
unsigned char blok8x8[64*3];
unsigned char type;
unsigned int x_size, y_size, offset;
unsigned char depth;
char *fileIn, *fileOut;
FILE *fI, *fO;
/*******************************************************************************************/
/* Just for testing on the PC */
if(argc != 4)
{
printf("need more arguments, 0|1 for de/encrypt and 2 more for the in/ouput files");
return 0;
}
type = atoi(argv[1]);
fileIn = argv[2];
fileOut = argv[3];
if (NULL == (fI = fopen(fileIn, "rb"))){
printf("unable to open the file to read from (%s)",fileIn);
return 0;
}
if ((fO = fopen(fileOut,"wb")) == NULL) {
printf("unable to open the file to write (%s)",fileOut);
return 0;
}
/* Read the max possible size to the memory */
fread(Image1, sizeof(unsigned char), (MAXROWS*MAXCOLS*3+HEADER), fI);
/*******************************************************************************************/
/* The image must be in the memory by now */
// retval = 0;
switch(type) {
case ENCODE:
GetBMPHeaderInfo (Image1,&offset,&x_size,&y_size,&depth);
printf("Image Resolution: %d x %d x %i Offset: %i\n", x_size, y_size, depth, offset);
// RGB -> YUV ---> done
// Convert to 8x8 --> done
//BMPto8x8AndYCbCr(0,0,x_size,y_size,offset,depth,Image1,blok8x8);
// DCT
fdct(workspace);
// ZZ
// Q
// VLC (huffman)
break;
case DECODE:
GetJPEGHeaderInfo (Image1,&offset,&x_size,&y_size,&depth);
// VLD (huffman)
// IQ
// ZZ
// IDCT
//idct(workspace);
// Convert 8x8 to BMP style -> done
// YUV -> RGB
// YCbCrAnd8x8toBMP()
// WriteBMPHeaderInfo(Image1,offset,x_size,y_size, depth);
break;
}
printf("Before:");
for(i=0;i<(x_size*y_size*3);i++)
{
if((i%24)==0) printf("\n");
printf("%02x ",Image1[i+offset]);
}
printf("\nBMPto8x8 functie\n");
BMPto8x8AndYCbCr(0,0,x_size,y_size,offset,depth,Image1,blok8x8);
printf("\n8x8 Blok:\n");
for(i=0;i<64;i++)
{
printf("%02x",blok8x8[i]);
}
for(i=0;i<(x_size*y_size*3);i++)
{
Image1[i+offset] = 0;
}
printf("\n8x8toBMP functie\n");
YCbCrAnd8x8toBMP(0,0,x_size,y_size,offset,depth,Image1,blok8x8);
printf("\nAfter:\n");
for(i=0;i<(x_size*y_size*3);i++)
{
if((i%24)==0) printf("\n");
printf("%02x ",Image1[i+offset]);
}
//Write Image to the output file.
fwrite(Image1, sizeof(unsigned char), (x_size*y_size*(depth/8))+offset, fO);
fclose(fI);
fclose(fO);
return retval;
}
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