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#include <stdio.h>
#include "jpeglib.h"
#define __NO_SYSTEM__
#include "filter.h"
int writeJPEG( Image *im, fullPath *sfile, int quality, int progressive )
{
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
FILE * outfile;
char filename[512];
int scanlines_written;
unsigned char *data,*buf;
#ifdef __Mac__
unsigned char the_pcUnixFilePath[512];// added by Kekus Digital
Str255 the_cString;
Boolean the_bReturnValue;
CFStringRef the_FilePath;
CFURLRef the_Url;//till here
#endif
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
if( GetFullPath (sfile, filename))
return -1;
#ifdef __Mac__
CopyCStringToPascal(filename,the_cString);//Added by Kekus Digital
the_FilePath = CFStringCreateWithPascalString(kCFAllocatorDefault, the_cString, kCFStringEncodingUTF8);
the_Url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, the_FilePath, kCFURLHFSPathStyle, false);
the_bReturnValue = CFURLGetFileSystemRepresentation(the_Url, true, the_pcUnixFilePath, 512);
strcpy(filename, the_pcUnixFilePath);//till here
#endif
if ((outfile = fopen(filename, "wb")) == NULL)
{
PrintError("can't open %s", filename);
return -1;
}
TwoToOneByte( im );
jpeg_stdio_dest(&cinfo, outfile);
cinfo.image_width = im->width; /* image width and height, in pixels */
cinfo.image_height = im->height;
cinfo.input_components = 3; /* # of color components per pixel */
cinfo.in_color_space = JCS_RGB; /* colorspace of input image */
jpeg_set_defaults(&cinfo);
if( 2 != (progressive & 2) )
cinfo.optimize_coding = TRUE;
jpeg_set_quality (&cinfo, quality, TRUE);
if( 1 == (progressive & 1) )
jpeg_simple_progression (&cinfo);
jpeg_start_compress(&cinfo, TRUE);
scanlines_written = 0;
data = *(im->data);
buf = (unsigned char*)malloc( (size_t)im->bytesPerLine );
if(buf == NULL)
{
PrintError("Not enough memory");
fclose( outfile );
return -1;
}
while ( scanlines_written < im->height )
{
memcpy(buf, data, (size_t)im->bytesPerLine );
if( im->bitsPerPixel == 32 ) // Convert 4->3 samples
{
int x;
unsigned char *c1=buf, *c2=buf;
for(x=0; x < im->width; x++)
{
c2++;
*c1++ = *c2++;
*c1++ = *c2++;
*c1++ = *c2++;
}
}
if( jpeg_write_scanlines(&cinfo, (JSAMPARRAY) &buf, 1) )
{
scanlines_written++;
data += im->bytesPerLine;
}
}
jpeg_finish_compress(&cinfo);
jpeg_destroy_compress(&cinfo);
fclose( outfile );
free( buf );
return 0;
}
int readJPEG ( Image *im, fullPath *sfile )
{
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
FILE * infile;
char filename[256];
int scan_lines_to_be_read, scan_lines_read;
unsigned int i, scanheight;
unsigned char*data;
JSAMPARRAY sarray;
#ifdef __Mac__
unsigned char the_pcUnixFilePath[256];// added by Kekus Digital
Str255 the_cString;
Boolean the_bReturnValue;
CFStringRef the_FilePath;
CFURLRef the_Url;//till here
#endif
//PrintError("%s", sfile->name);
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_decompress(&cinfo);
if( GetFullPath (sfile, filename))
return -1;
#ifdef __Mac__
CopyCStringToPascal(filename,the_cString);//Added by Kekus Digital
the_FilePath = CFStringCreateWithPascalString(kCFAllocatorDefault, the_cString, kCFStringEncodingUTF8);
the_Url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, the_FilePath, kCFURLHFSPathStyle, false);
the_bReturnValue = CFURLGetFileSystemRepresentation(the_Url, true, the_pcUnixFilePath, 256);
strcpy(filename, the_pcUnixFilePath);//till here
#endif
if ((infile = fopen(filename, "rb")) == NULL)
{
PrintError("can't open %s", filename);
return -1;
}
jpeg_stdio_src(&cinfo, infile);
jpeg_read_header(&cinfo, TRUE);
jpeg_start_decompress(&cinfo);
SetImageDefaults( im );
im->width = cinfo.output_width;
im->height = cinfo.output_height;
if( cinfo.output_components != 3 )
{
PrintError("Image must be rgb");
fclose( infile );
return -1;
}
im->bitsPerPixel = 24;
im->bytesPerLine = im->width * 3;
im->dataSize = im->width * 4 * im->height;
im->data = (unsigned char**)mymalloc( (size_t)im->dataSize );
if( im->data == NULL )
{
PrintError("Not enough memory");
fclose( infile );
return -1;
}
scanheight = cinfo.rec_outbuf_height;
sarray = (JSAMPARRAY) malloc( scanheight * sizeof( JSAMPROW ) );
scan_lines_to_be_read = im->height;
data = *(im->data);
while (scan_lines_to_be_read)
{
for(i=0; i<scanheight; i++)
{
sarray[i] = (JSAMPROW) (data + i*im->bytesPerLine);
}
scan_lines_read = jpeg_read_scanlines(&cinfo, sarray, scanheight);
scan_lines_to_be_read -= scan_lines_read;
data += scan_lines_read * im->bytesPerLine;
}
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
ThreeToFourBPP( im );
free( sarray );
fclose( infile );
return 0;
}
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