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file.c    2579 lines (2083 with data), 77.5 kB

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/* Panorama_Tools - Generate, Edit and Convert Panoramic Images
Copyright (C) 1998,1999 - Helmut Dersch der@fh-furtwangen.de
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*------------------------------------------------------------*/
// Functions to read and write Photoshop, and write tiffs
// Updated by Jim Watters 2003 Nov 21
// Every layer of a multi layer PSD file should have a shape mask.
// The shape mask defines the shape of the image from the background.
// 3 problems with PTSTitcher
// - The Seam options for middle(s0 'blend')and edge(s1 'paste') are ignored by PTStitcher
// - Both the PSD options of "With_Mask" and "Without_Mask" both create mask except:
// - the "With_Mask" puts the seam in the center and uses the feathering to blend
// - the "Without_Mask" puts the seam at the edge and ignores the feathering, does no blending
// - 16bit input images are reduced to 8bit and not able to create 16bit psd files.
// For backward compatability reasons continue to create mask for "WithOut_Mask"
// When creating multi image PSD files try to create shape mask (Alpha) and clip mask properly
// Updated writePSDwithLayer and addLayer to create both proper shape mask and clip mask
// As a hack to check to see if a shape mask can be created from the alpha channel do a check for feathering in the Alpha channel
// If Alpha channel has feathering create a new shape mask
// Add two new functions hasFeather and writeTransparentAlpha
// Enabled 16bit multilayer PSD files; except they still are 8bit; They are already converted in PTStitcher
// Updated by Jim Watters 2003 Nov 24
// fixed bug with odd data size for psd files
// There is only one pad char at the end of all layer and channel data, if everything is a odd length
// Update by Jim Watters 2003 Dec 29
// Also fix ReadPSD to handle multilayers
// Update by Rik Littlefield 2004 June 29
// Fix getImageRectangle to not pagefault so badly.
// Dynamically allocate scanline buffer in writeWhiteBackground,
// to avoid buffer overflow and crash on large images.
// Fix 16bit Radial Shift and Adjust - Kevin & Jim 2004 July
// 2006 Max Lyons - Various modifications
#include <assert.h>
#include "filter.h"
#include "file.h"
#include "pttiff.h"
#include "metadata.h"
// local functions
static int writeImageDataPlanar ( Image *im, file_spec fnum );
static int readImageDataPlanar (Image *im, file_spec fnum ) ;
static int ParsePSDHeader ( char *header, Image *im );
static int writeChannelData ( Image *im, file_spec fnum, int channel, PTRect *r );
static int writeLayerAndMask ( Image *im, file_spec fnum );
static void getImageRectangle ( Image *im, PTRect *r );
static int fileCopy ( file_spec src, file_spec dest, size_t numBytes, unsigned char *buf);
static void orAlpha ( unsigned char* alpha, unsigned char *buf, Image *im, PTRect *r );
static void writeWhiteBackground ( pt_int32 width, pt_int32 height, file_spec fnum );
static int addLayer ( Image *im, file_spec src, file_spec fnum , stBuf *sB);
static int hasFeather ( Image *im );
static int writeTransparentAlpha ( Image *im, file_spec fnum, PTRect *theRect );
char *psdBlendingModesNames[] = {
"Normal",
"Color",
"Darken",
"Difference",
"Dissolve",
"Hard Light",
"Hue",
"Lighten",
"Luminosity",
"Multiply",
"Overlay",
"Sof Light",
"Saturation",
"Screen"
};
char *psdBlendingModesInternalName[] = {
"norm",
"colr",
"dark",
"diff",
"diss",
"hLit",
"hue",
"lite",
"lum",
"mul",
"over",
"sLit",
"sat",
"scrn"
};
#define PSDHLENGTH 26
int panoPSDResourceWrite(file_spec fnum, pt_uint16 resource, pt_uint16 len, pt_uint16 dataLen, char *resourceData)
{
//struct _ColorModeDataBlock
//{
// BYTE Type[4]; /* Always "8BIM" */
// WORD ID; /* (See table below) */
// BYTE Name[]; /* Even-length Pascal-format string, 2 bytes or longer */
// LONG Size; /* Length of resource data following, in bytes */
// BYTE Data[]; /* Resource data, padded to even length */
//};
//
int rtn = 0;
unsigned char ch;
size_t count;
short svar;
char data[12], *d;
pt_uint32 var;
WRITEUCHAR( '8' );
rtn += count;
WRITEUCHAR( 'B' );
rtn += count;
WRITEUCHAR( 'I' );
rtn += count;
WRITEUCHAR( 'M' );
rtn += count;
WRITESHORT(resource);
rtn += count;
WRITESHORT(0); // Null string 2 bytes (length)
rtn += count;
WRITEINT32(len); //size of the record (4 bytes)
rtn += count;
if (dataLen > 0 && resourceData != NULL) {
mywrite( fnum, dataLen, resourceData );
rtn += dataLen;
}
return rtn;
}
int panoPSDPICTResourceWrite(file_spec fnum, unsigned char resource, unsigned char record, pt_uint16 len, char *recordData)
{
// See IPTC Information Intercharge Model Exchange Version 4.
int rtn = 0;
unsigned char ch;
size_t count;
short svar = 0;
char data[12], *d;
WRITEUCHAR( 0x1c );
rtn += count;
WRITEUCHAR( resource );
rtn += count;
WRITEUCHAR( record );
rtn += count;
WRITESHORT( len ); //length
rtn += count;
if (recordData != NULL ) {
mywrite( fnum, len, recordData);
rtn += count;
if (len % 2 == 0) {
// Odd size record! it should be aligned to word, but not reported in the lenght
// and the record header is odd length (5 bytes) so...
// printf("Writing extra record to align\n");
WRITEUCHAR( 0 );
rtn += count;
}
}
return rtn;
}
#define CREATED_BY_PSD "Panotools " VERSION
#define IPTC_VERSION_ID 0
#define IPTC_ORIGINATING_PROGRAM_ID 0x41
#define IPTC_DESCRIPTION_WRITER_ID 0x7a
int panoPSDResourcesBlockWrite(Image *im, file_spec fnum)
{
int rtn = 0;
char data[12], *d;
short svar = 0;
size_t count;
pt_uint32 var;
int saveLocation = 0;
int saveLocationForSize=0;
int temp;
// This function is a bit cryptic mainly because PSD forces the lenght to be known before a record is written.
// What I have decided is to make the writing process non-sequential.
// Write an empty length first, then "rewind" and write its real
// one. It will make things way easier and more maintainable.
// Write 4 bytes
saveLocationForSize = ftell(fnum);
WRITEINT32( 1234 ); // Image Resources size
rtn += 4;
if (im->metadata.iccProfile.size > 0) {
// Currently we only include ICC profile if it exists
// We need to write an image Resources block
// Write Image resources header
// Write ICC Profile block
rtn += panoPSDResourceWrite(fnum, 0x040f, im->metadata.iccProfile.size,
im->metadata.iccProfile.size, im->metadata.iccProfile.data);
}
{
// we will refactor this chunck
char IPTCVersion[3];
IPTCVersion[0] = 0;
IPTCVersion[1] = 2;
IPTCVersion[2] = 0;
// To write PICT we need to create a resource of type IPCT
// Inside it write the sequence of PICT records
// THIS IS UNTIL I FIX THIS CODE. IPTC records should be aligned and the header takes
// 5 bytes
// We also need to make it easier to add new records by
//simplifying the computation of the length of the subrecords
assert(strlen(CREATED_BY_PSD) % 2 == 1) ;
temp = strlen(CREATED_BY_PSD);
/// 8 of the VERSION ID + length of Descriptor (5 header + 2 strlen + string )
rtn += panoPSDResourceWrite(fnum, 0x0404, 8 + 5 + 2 + temp, 0, NULL);
rtn += panoPSDPICTResourceWrite(fnum, 0x02, IPTC_VERSION_ID, 2, IPTCVersion);
rtn += panoPSDPICTResourceWrite(fnum, 0x02, IPTC_DESCRIPTION_WRITER_ID, temp, NULL );
WRITESHORT(temp);
rtn += count;
mywrite( fnum, temp, CREATED_BY_PSD);
rtn += temp;
// TODO:
// caption abstract: 0x78 "script... (2000 bytes max)
// if we have them:
// copyright
// Set the time that PTmender runs
// imagedescription
// artist 0x80 (32 max)
}
// Write length
saveLocation = ftell(fnum);
fseek(fnum, saveLocationForSize, SEEK_SET);
assert(saveLocation > saveLocationForSize);
WRITEINT32( saveLocation - saveLocationForSize-4 ); // Image Resources size
fseek(fnum, saveLocation, SEEK_SET);
return rtn;
}
// Save image as single layer PSD file
// Image is background
int writePSD(Image *im, fullPath *sfile )
{
file_spec fnum;
char data[12], *d;
short svar;
size_t count;
pt_uint32 var;
unsigned char ch;
int channels, BitsPerChannel;
GetChannels( im, channels );
GetBitsPerChannel( im, BitsPerChannel );
if( myopen( sfile, write_bin, fnum ) )
{
PrintError("Error Writing Image File");
return -1;
}
// printf("It is sropped %d\n", panoImageIsCropped(im));
// Write PSD Header
// WRITEINT32( '8BPS' );
WRITEUCHAR( '8' );
WRITEUCHAR( 'B' );
WRITEUCHAR( 'P' );
WRITEUCHAR( 'S' );
WRITESHORT( 1 );
WRITEINT32( 0 ); WRITESHORT( 0 );
WRITEUCHAR( 0 );
WRITEUCHAR( channels );// No of channels
// TODO: IF THE SOURCE FILE IS CROPPED THIS IS WRITING ONLY THE CROPPED AREA
// printf("It is sropped %d %d %d %d %d\n", panoImageIsCropped(im),
// panoImageHeight(im), panoImageWidth(im), panoImageFullHeight(im), panoImageFullWidth(im));
//The Photoshop file has the dimensions of the full size image, regardless
//of whether the TIFF file is "cropped" or not.
WRITEINT32( panoImageHeight(im)); // Rows
WRITEINT32( panoImageWidth(im)); // Columns
WRITESHORT( BitsPerChannel ); // BitsPerChannel
switch( im->dataformat ) // Color mode
{
case _Lab: WRITESHORT( 9 );
break;
case _RGB: WRITESHORT( 3 );
break;
default: WRITESHORT( 3 );
}
printf(".................HHHHHHHHHHHHHHHHHHHHHHHHHHHHH\n");
WRITEINT32( 0 ); // Color Mode block
// WRITEINT32( 0);
panoPSDResourcesBlockWrite(im, fnum);
WRITEINT32( 0 ); // Layer & Mask
// Image data
writeImageDataPlanar( im, fnum );
myclose (fnum );
return 0;
}
// Save image as single layer PSD file
// Image is layer in front of white background
int writePSDwithLayer(Image *im, fullPath *sfile )
{
file_spec fnum;
char data[12], *d;
size_t count;
pt_uint32 var;
unsigned char ch;
short svar;
int BitsPerChannel;
//Determine if this is a "cropped" tiff, and, if so, what is
//the full size from which this is cropped?
// Jim Watters 2003/11/18: Photoshop CS does 16bit channels if 16 bit in, allow 16 bit out
// TwoToOneByte( im ); // Multilayer image format doesn't support 16 bit channels
GetBitsPerChannel( im, BitsPerChannel );
if( myopen( sfile, write_bin, fnum ) )
{
PrintError("Error Writing Image File");
return -1;
}
// Write PSD Header
// WRITEINT32( '8BPS' );
WRITEUCHAR( '8' );
WRITEUCHAR( 'B' );
WRITEUCHAR( 'P' );
WRITEUCHAR( 'S' );
WRITESHORT( 1 ); // Version
WRITEINT32( 0 ); WRITESHORT( 0 ); // 6 bytes zeroed
WRITESHORT( 3 ); // No of channels; Background always white, 3 channels
//WRITEINT32( im->height );
//WRITEINT32( im->width );
printf("It is cropped %d\n", panoImageIsCropped(im));
//The Photoshop file has the dimensions of the full size image, regardless
//of whether the TIFF file is "cropped" or not.
WRITEINT32( panoImageFullHeight(im)); // Rows
WRITEINT32( panoImageFullWidth(im)); // Columns
WRITESHORT( BitsPerChannel ); // BitsPerChannel
switch( im->dataformat )
{
case _Lab: WRITESHORT( 9 );
break;
case _RGB: WRITESHORT( 3 );
break;
default: WRITESHORT( 3 );
}
WRITEINT32( 0 ); // Color Mode
panoPSDResourcesBlockWrite(im, fnum);
writeLayerAndMask( im, fnum );
writeWhiteBackground( im->width * BitsPerChannel/8, im->height, fnum );
myclose (fnum );
return 0;
}
// Add image as additional layer into PSD-file (exported function)
int addLayerToFile( Image *im, fullPath* sfile, fullPath* dfile, stBuf *sB)
{
file_spec src;
file_spec fnum;
Image sim; // background image
char header[128], *h;
size_t count, len, i, srcCount = 0;
unsigned char **buf;
pt_uint32 var;
char data[12], *d;
int BitsPerChannel, result = 0;
// Jim Watters 2003/11/18: Photoshop CS does 16bit channels if 16 bit in, allow 16 bit out
// TwoToOneByte( im ); // Multilayer image format doesn't support 16 bit channels
GetBitsPerChannel( im, BitsPerChannel );
if( myopen( sfile,read_bin, src ) )
{
PrintError("Error Opening Image File");
return -1;
}
// Read psd header
h = header;
count = PSDHLENGTH;
myread( src,count,h); srcCount += count;
if( count != PSDHLENGTH )
{
PrintError("Error Reading Image File");
myclose( src );
return -1;
}
if( ParsePSDHeader( header, &sim ) != 0 )
{
PrintError("addLayerToFile: Wrong File Format");
myclose( src );
return -1;
}
// Check if image can be inserted
// printf("Image size %d %d im %d %d\n", sim.width, sim.height, panoImageWidth(im), panoImageHeight(im));
if( sim.width != panoImageFullWidth(im) || sim.height != panoImageFullHeight(im) )
{
PrintError("Can't add layer: Images have different size");
return -1;
}
// Read (and ignore) Color mode data
READINT32( len ); srcCount += (4 + len);
count = 1;
for( i=0; i<len; i++ )
{
myread(src,count,h);
}
// Read (and ingnore) Image resources
READINT32( len ); srcCount += (4 + len);
count = 1;
for( i=0; i<len; i++ )
{
myread(src,count,h);
}
myclose( src );
if( myopen( sfile, read_bin, src ) )
{
PrintError("Error Opening Image File");
return -1;
}
if( myopen( dfile, write_bin, fnum ) )
{
PrintError("Error Opening Image File");
return -1;
}
// Read and write Fileheader
buf = (unsigned char**)mymalloc( srcCount );
if( buf == NULL )
{
PrintError("Not enough memory");
result = -1;
goto _addLayerToFile_exit;
}
fileCopy( src, fnum, srcCount, *buf );
myfree( (void**)buf );
// Add one layer
if( addLayer( im, src, fnum, sB ) != 0 )
{
result = -1;
goto _addLayerToFile_exit;
}
writeWhiteBackground( sim.width * BitsPerChannel/8, sim.height, fnum );
_addLayerToFile_exit:
myclose( src ); myclose( fnum );
return result;
}
static int writeImageDataPlanar( Image *im, file_spec fnum )
{
register int x,y,idy, bpp;
unsigned char **channel;
register unsigned char *ch, *idata;
int color;
size_t count;
short svar;
char data[12], *d;
int BitsPerChannel, channels;
GetBitsPerChannel( im, BitsPerChannel );
GetChannels( im,channels);
printf("Bitx per channel %d channels %d\n", BitsPerChannel, channels);
bpp = im->bitsPerPixel / 8;
// Write Compression info
WRITESHORT( 0 ); // Raw data
// Buffer to hold data in one channel
count = im->width * im->height * BitsPerChannel / 8;
channel = (unsigned char**)mymalloc( count );
if( channel == NULL )
{
PrintError("Not Enough Memory");
return -1;
}
if( BitsPerChannel == 8 )
{
for( color = 0; color<3; color++)
{
ch = *channel; idata = &(*im->data)[color + channels - 3];
for(y=0; y<im->height;y++)
{
idy = y * im->bytesPerLine;
for(x=0; x<im->width;x++)
{
*ch++ = idata [ idy + x * bpp ];
}
}
mywrite( fnum, count, *channel );
}
}
else // 16
{
unsigned short storage;//Kekus 2003 16 bit support
for( color = 0; color<3; color++)
{
ch = *channel; idata = &(*im->data)[2*(color + channels - 3)];
for(y=0; y<im->height;y++)
{
idy = y * im->bytesPerLine;
for(x=0; x<im->width;x++)
{
//Kekus:2003/Nov/18 // JMW 2004 July
storage = *(unsigned short*)&idata [ idy + x * bpp ];
SHORTNUMBER( storage, ch );
//Kekus.
}
}
mywrite( fnum, count, *channel );
}
}
if( im->bitsPerPixel == 32 )
{
// Write 1byte alpha channel
ch = *channel; idata = &(*im->data)[0];
for(y=0; y<im->height;y++)
{
idy = y * im->bytesPerLine;
for(x=0; x<im->width;x++)
{
*ch++ = idata [ idy + x * bpp ];
}
}
mywrite( fnum, count, *channel );
}
else if( im->bitsPerPixel == 64 )
{
// Write 2byte alpha channel
unsigned short storage;
ch = *channel; idata = &(*im->data)[0];
for(y=0; y<im->height;y++)
{
idy = y * im->bytesPerLine;
for(x=0; x<im->width;x++)
{
storage = *(unsigned short*)&idata [ idy + x * bpp ];
SHORTNUMBER( storage, ch );
}
}
mywrite( fnum, count, *channel );
}
myfree( (void**)channel );
return 0;
}
// Write white background, RLE-compressed
static void writeWhiteBackground( pt_int32 width, pt_int32 height, file_spec fnum )
{
short svar;
pt_int32 w8, w;
size_t count;
char data[12], *d, **scanline;
int numChannels = 3, i, bytecount, dim = height*numChannels;
size_t maxscanline = (width/128)*2 + 2;
scanline = (char**)mymalloc( maxscanline );
if( scanline == NULL )
{
PrintError("Not enough memory");
return;
}
WRITESHORT( 1 ); // RLE compressed
w8 = width;
d = *scanline;
// Set up scanline
for(w=w8; w>128; w-=128)
{
*d++ = -127; *d++ = 255U;
}
switch(w)
{
case 0: break;
case 1: *d++ = 0; *d++ = 255U;
break;
default: *d++ = 1-w; *d++ = 255U;
break;
}
bytecount = d - *scanline;
// Scanline counts (rows*channels)
for(i=0; i < dim; i++)
{
WRITESHORT( bytecount );
}
// RLE compressed data
count = bytecount;
for(i=0; i < dim; i++)
{
mywrite( fnum, count, *scanline );
}
myfree((void**)scanline);
}
// image is allocated, but not image data
// mode = 0: only load image struct
// mode = 1: also allocate and load data
int readPSD(Image *im, fullPath *sfile, int mode)
{
file_spec src;
char header[128], *h;
long len, i;
size_t count;
pt_uint32 var;
char data[12], *d;
if( myopen( sfile, read_bin, src ) )
{
PrintError("Error Opening Image File");
return -1;
}
// Read psd header
h = header;
count = PSDHLENGTH;
myread( src,count,h);
if( count != PSDHLENGTH )
{
PrintError("Error Reading Image File");
myclose( src );
return -1;
}
if( ParsePSDHeader( header, im ) != 0 )
{
PrintError("readPSD: Wrong File Format");
myclose( src );
return -1;
}
if( mode == 0 )
{
myclose( src );
return 0;
}
im->data = (unsigned char**) mymalloc( (size_t)im->dataSize );
if( im->data == NULL )
{
PrintError("Not enough memory to read image");
myclose( src );
return -1;
}
// Read (and ingnore) Color mode data
READINT32( len );
count = 1;
for( i=0; i<len; i++ )
myread(src,count,h);
// Read (and ingnore) Image resources
READINT32( len );
count = 1;
for( i=0; i<len; i++ )
myread(src,count,h);
// Read (and ingnore) Layer mask info
READINT32( len );
count = 1;
for( i=0; i<len; i++ )
myread(src,count,h);
if( readImageDataPlanar( im, src ) != 0 )
{
PrintError("Error reading image");
myclose( src );
return -1;
}
myclose (src );
return 0;
}
static int ParsePSDHeader( char *header, Image *im )
{
register char *h = header;
short s;
int channels;
if( *h++ != '8' || *h++ != 'B' || *h++ != 'P' || *h++ != 'S' ||
*h++ != 0 || *h++ != 1 ||
*h++ != 0 || *h++ != 0 || *h++ != 0 || *h++ != 0 || *h++ != 0 || *h++ != 0 )
{
PrintError( "ParsePSDHeader: Error reading PSD Header: %c%c%c%c", header[0], header[1], header[2], header[3] );
return -1;
}
NUMBERSHORT( s, h );
channels = s;
if( channels < 3 ) //!= 3 && channels != 4 )
{
PrintError( "Number of channels must be 3 or larger" );
return -1;
}
if( channels > 4 ) channels = 4;
NUMBERLONG( im->height, h );
NUMBERLONG( im->width, h );
NUMBERSHORT( s, h );
if( s!= 8 && s!= 16)
{
PrintError( "Depth must be 8 or 16 Bits per Channel" );
return -1;
}
im->bitsPerPixel = s * channels;
NUMBERSHORT( s, h );
switch( s )
{
case 3: im->dataformat = _RGB; break;
case 9: im->dataformat = _Lab; break;
default: PrintError( "Color mode must be RGB or Lab" );return -1;
}
im->bytesPerLine = im->width * im->bitsPerPixel/8;
im->dataSize = im->height * im->bytesPerLine;
return 0;
}
static int readImageDataPlanar(Image *im, file_spec src )
{
register int x,y,idy, bpp;
unsigned char **channel = NULL;
register unsigned char *h, *idata;
int result = 0, i, chnum,BitsPerChannel, channels;
size_t count;
short svar;
unsigned short usvar;
char data[12], *d ;
GetBitsPerChannel( im, BitsPerChannel );
GetChannels( im, channels );
bpp = im->bitsPerPixel / 8;
// Read Compression info
READSHORT( svar );
if( svar!= 0 )
{
PrintError("Image data must not be compressed");
return -1;
}
// Allocate memory for one channel
count = im->width * im->height * BitsPerChannel/8 ;
channel = (unsigned char**)mymalloc( count );
if( channel == NULL )
{
PrintError("Not Enough Memory");
return -1;
}
for(i = 0; i < channels; i++) // Read each channel
{
chnum = i + channels - 3;
if(chnum == 4) chnum = 0; // Order: r g b (alpha)
myread(src,count,*channel);
if( count != im->width * im->height * BitsPerChannel/8)
{
PrintError("Error Reading Image Data");
result = -1;
goto readImageDataPlanar_exit;
}
h = *channel;
if( BitsPerChannel == 8 )
{
idata = &(*im->data)[chnum];
for(y=0; y<im->height;y++)
{
idy = y * im->bytesPerLine;
for(x=0; x<im->width;x++)
{
idata [ idy + x * bpp ] = *h++;
}
}
}
else // 16
{
idata = &(*im->data)[chnum*2];
for(y=0; y<im->height;y++)
{
idy = y * im->bytesPerLine;
for(x=0; x<im->width;x++)
{
NUMBERSHORT( usvar, h );
*((unsigned short*)&idata [ idy + x * bpp ]) = usvar;
}
}
}
}
readImageDataPlanar_exit:
if( channel != NULL )
myfree( (void**)channel );
return result;
}
// Write image as separate first layer
static int writeLayerAndMask( Image *im, file_spec fnum )
{
pt_uint32 var;
PTRect theRect;
int channelLength;
size_t count;
short svar;
char data[12], *d;
unsigned char ch;
int i, lenLayerInfo, numLayers,BitsPerChannel,channels,psdchannels;
int oddSized = 0;
int hasClipMask = 0; // Create a mask
int hasShapeMask = 0; // Create alpha channel
GetBitsPerChannel( im, BitsPerChannel );
GetChannels( im, channels );
psdchannels = channels;
if( channels > 3 ) // Alpha channel present
{
hasClipMask = 1;
psdchannels++;
if ( !hasFeather( im ) )// If there is feathering do Not use Alpha channel for Shape Mask
{ // Only use alpha if there is no feathering
hasShapeMask = 1; // The Alpha channel can be used as a Shape Mask
}
}
//we only write to the PSD file the smallest region of the input file that
//contains "non-empty" image data. The bounds of this region are recorded in
//in "theRect". If this input image is a "cropped" image, then theRect will
//just use the data region specified "crop_info".
getImageRectangle( im, &theRect );
numLayers = 1;
channelLength = (theRect.right-theRect.left) * (theRect.bottom-theRect.top) * BitsPerChannel/8 + 2;
lenLayerInfo = 2 + numLayers * (4*4 + 2 + psdchannels * 6 + 4 + 4 + 4 * 1 + 4 + 12 + psdchannels * channelLength);
if(hasClipMask)
lenLayerInfo += 20;
// Length of the layers info section, rounded up to a multiple of 2.
if( lenLayerInfo/2 != (lenLayerInfo+1)/2 ) // odd
{
lenLayerInfo += 1; oddSized = 1;
}
WRITEINT32( lenLayerInfo + 4 + 4 );
// Layer info. See table 2�13.
WRITEINT32( lenLayerInfo );
// 2 bytes Count Number of layers. If <0, then number of layers is absolute value,
// and the first alpha channel contains the transparency data for
// the merged result.
WRITESHORT( numLayers );
// ********** Layer Structure ********************************* //
WRITEINT32( theRect.top ); // Layer top
WRITEINT32( theRect.left ); // Layer left
WRITEINT32( theRect.bottom ) ; // Layer bottom
WRITEINT32( theRect.right ) ; // Layer right
WRITESHORT( psdchannels ); // The number of channels in the layer.
// ********** Channel information ***************************** //
WRITESHORT( 0 ); // red
WRITEINT32( channelLength ) // Length of following channel data.
WRITESHORT( 1 ); // green
WRITEINT32( channelLength ) // Length of following channel data.
WRITESHORT( 2 ); // blue
WRITEINT32( channelLength ) // Length of following channel data.
if( hasClipMask ) // Mask channel
{
WRITESHORT( -1); // Shape Mask
WRITEINT32( channelLength ); // Length of following channel data.
WRITESHORT( -2); // Clip Mask
WRITEINT32( channelLength ); // Length of following channel data.
}
// ********** End Channel information ***************************** //
// WRITEINT32( '8BIM'); // Blend mode signature Always 8BIM.
WRITEUCHAR( '8' );
WRITEUCHAR( 'B' );
WRITEUCHAR( 'I' );
WRITEUCHAR( 'M' );
// WRITEINT32( 'norm'); // Blend mode key
WRITEUCHAR( 'n' );
WRITEUCHAR( 'o' );
WRITEUCHAR( 'r' );
WRITEUCHAR( 'm' );
WRITEUCHAR(255); // 1 byte Opacity 0 = transparent ... 255 = opaque
WRITEUCHAR( 0 ); // 1 byte Clipping 0 = base, 1 = non�base
WRITEUCHAR( hasShapeMask ); // 1 byte Flags bit 0 = transparency protected bit 1 = visible
WRITEUCHAR( 0 ); // 1 byte (filler) (zero)
if(hasClipMask)
{
WRITEINT32( 32); // Extra data size Length of the extra data field. This is the total length of the next five fields.
WRITEINT32( 20 ); // Yes Layer Mask data
WRITEINT32( theRect.top ); // Layer top
WRITEINT32( theRect.left ); // Layer left
WRITEINT32( theRect.bottom ) ; // Layer bottom
WRITEINT32( theRect.right ) ; // Layer right
WRITEUCHAR( 0 ) ; // Default color 0 or 255
WRITEUCHAR( 0 ) ; // Flag: bit 0 = position relative to layer bit 1 = layer mask disabled bit 2 = invert layer mask when blending
WRITEUCHAR( 0 ) ; // padding
WRITEUCHAR( 0 ) ; // padding
}
else
{
WRITEINT32( 12); // Extra data size Length of the extra data field. This is the total length of the next five fields.
WRITEINT32( 0 ); // No Layer Mask data
}
WRITEINT32( 0 ); // Layer blending ranges
WRITEUCHAR( 3 ); WRITEUCHAR( 'L' );WRITEUCHAR( '0' );WRITEUCHAR( '1' );// Layer name
// ************* End Layer Structure ******************************* //
// ************* Write Channel Image data ************************** //
// Write color channels
for( i=0; i<3; i++)
{
if( writeChannelData( im, fnum, i + channels - 3, &theRect ) )
return -1;
}
if( hasShapeMask )
{
if( writeChannelData( im, fnum, 0, &theRect ) )
return -1;
}
else
{
if( writeTransparentAlpha(im, fnum, &theRect ) )
return -1;
}
if( hasClipMask )
{
if( writeChannelData( im, fnum, 0, &theRect ) )
return -1;
}
if( oddSized ) // pad byte
{
WRITEUCHAR( 0 );
}
// ************* End Write Channel Image data ************************** //
// ************* Global layer mask info ******************************** //
WRITEINT32( 0 ); // Length of global layer mask info section.
// WRITESHORT( 0 ); // 2 bytes Overlay color space
// WRITESHORT( 0 ); // 4 * 2 byte color components
// WRITESHORT( 0 );
// WRITESHORT( 0 );
// WRITESHORT( 0 );
// WRITESHORT( 0 ); // 2 bytes Opacity 0 = transparent, 100 = opaque.
// WRITEUCHAR( 128 ); // 1 byte Kind 0=Color selected�i.e. inverted;
// 1=Color protected;128=use value stored per layer.
// This value is preferred. The others are for back-ward
// compatibility with beta versions.
// WRITEUCHAR( 0 );
return 0;
}
static int writeChannelData( Image *im, file_spec fnum, int channel, PTRect *theRect )
{
register int x, y, idx, idy, bpp, BitsPerChannel, channels;
unsigned char **ch;
register unsigned char *c, *idata;
size_t count;
short svar;
char data[12], *d;
pt_int32 outputRegionWidth, outputRegionHeight;
GetBitsPerChannel( im, BitsPerChannel );
GetChannels( im, channels );
// Write Compression info
WRITESHORT( 0 ); // Raw data
bpp = im->bitsPerPixel/8;
count = (theRect->right - theRect->left) * (theRect->bottom - theRect->top) * BitsPerChannel/8;
ch = (unsigned char**)mymalloc( count );
if( ch == NULL )
{
PrintError("Not Enough Memory");
return -1;
}
//note: theRect specifies the position in the output layer where the data should
//be placed. crop_info contains information about where the source data
//is positioned relative to the full output size
outputRegionWidth = (theRect->right - theRect->left);
outputRegionHeight = (theRect->bottom - theRect->top);
if (outputRegionWidth > panoImageWidth(im) || outputRegionHeight > panoImageHeight(im))
{
printf("output region (%d x %d) is larger than input image data region (%d x %d)\n",
(int)outputRegionWidth, (int)outputRegionHeight, (int)panoImageWidth(im), (int)panoImageHeight(im));
return 1;
}
c = *ch; idata = &((*(im->data))[channel*BitsPerChannel/8]);
if(BitsPerChannel == 8)
{
for(y=theRect->top; y<theRect->bottom;y++)
{
idy = (y - panoImageOffsetY(im)) * im->bytesPerLine;
if (idy < 0) { //should never happen
PrintError("writeChannelData: index error");
return 1;
}
for(x=theRect->left; x<theRect->right;x++)
{
idx = ((x - panoImageOffsetX(im)) * bpp);
*c++ = idata [ idy + idx ];
}
}
}
else // 16
{
unsigned short storage;
for(y=theRect->top; y<theRect->bottom;y++)
{
idy = (y - panoImageOffsetY(im)) * im->bytesPerLine;
if (idy < 0) { //should never happen
PrintError("writeChannelData: index error");
return 1;
}
for(x=theRect->left; x<theRect->right;x++)
{
idx = ((x - panoImageOffsetX(im)) * bpp);
storage = *(unsigned short*)&idata [ idy + idx ];
SHORTNUMBER( storage, c );
}
}
}
mywrite( fnum, count, *ch );
myfree( (void**)ch );
return 0;
}
static int writeTransparentAlpha( Image *im, file_spec fnum, PTRect *theRect )
{
register int y, bpp, BitsPerChannel;
size_t line, count;
unsigned char **ch;
register unsigned char *c;
short svar;
char data[12], *d;
GetBitsPerChannel( im, BitsPerChannel );
bpp = im->bitsPerPixel/8;
line = (theRect->right - theRect->left) * BitsPerChannel/8;
ch = (unsigned char**)mymalloc( line );
if( ch == NULL )
{
PrintError("Not Enough Memory");
return -1;
}
c = *ch;
// Write Compression info
WRITESHORT( 0 ); // Raw data
// fill in line
memset( c, 255, line );
#if(0)
if(BitsPerChannel == 8)
{
for(x=theRect->left; x<theRect->right;x++)
{
*c++ = (char)0;
}
}
else // 16 bit
{
for(x=theRect->left; x<theRect->right;x++)
{
*c++ = (char)0;
*c++ = (char)0;
}
}
#endif
// write out the results
for(y=theRect->top; y<theRect->bottom;y++)
{
count = line;
mywrite( fnum, count, *ch );
}
myfree( (void**)ch );
return 0;
}
// Return the smallest rectangle enclosing the image;
// Use alpha channel and rgb data
static void getImageRectangle( Image *im, PTRect *theRect )
{
register unsigned char *alpha, *data;
register int x,y,cy,bpp,channels;
int BitsPerChannel;
//If this is a cropped TIFF then we can get the image rectangle ROI from
//the metadata in crop_info, rather than having to parse the entire
//file to look for ROI
if ( panoImageIsCropped(im)) {
theRect->left = panoImageOffsetX(im);
theRect->top = panoImageOffsetY(im);
//Slightly counter-intuitive...right and bottom are one pixel larger than expected
//so that the width and height can be calculated by subtracting
//left from right or top from bottom
theRect->right = theRect->left + panoImageWidth(im);
theRect->bottom = theRect->top + panoImageHeight(im);
return;
}
//the crop_info seems indicates that this isn't a cropped TIFF...we have
//to parse the entire file to determine the ROI that contains non-empty
//image data
GetChannels( im, channels );
GetBitsPerChannel( im, BitsPerChannel );
bpp = im->bitsPerPixel/8;
theRect->top = im->height;
theRect->left = im->width;
theRect->bottom = 0;
theRect->right = 0;
if( channels == 4 ){ // alpha channel present: use image and alpha
if( BitsPerChannel == 8 ){
for(y=0; y<im->height; y++){
for(x=0, alpha = *(im->data) + y * im->bytesPerLine;
x<im->width;
x++, alpha += 4){
data = alpha + 1;
if( *alpha ||
*(data) || *(data+1) || *(data+2) ){
if (y < theRect->top) theRect->top = y;
if (y+1 > theRect->bottom) theRect->bottom = y+1;
if (x < theRect->left) theRect->left = x;
if (x+1 > theRect->right) theRect->right = x+1;
}
}
}
}else{ // 16
for(y=0; y<im->height; y++){
for(x=0, alpha = *(im->data) + y * im->bytesPerLine;
x<im->width;
x++, alpha += 8){
data = alpha + 2;
if( *((USHORT*)alpha) ||
*((USHORT*)data) || *(((USHORT*)data)+1) || *(((USHORT*)data)+2) ){
if (y < theRect->top) theRect->top = y;
if (y+1 > theRect->bottom) theRect->bottom = y+1;
if (x < theRect->left) theRect->left = x;
if (x+1 > theRect->right) theRect->right = x+1;
}
}
}
}
}
else // no alpha channel: Use non black rectangle only
{
alpha = *(im->data);
if( BitsPerChannel == 8 )
{
for(y=0; y<im->height; y++)
{
cy = y * im->bytesPerLine;
for(x=0; x<im->width; x++)
{
data = alpha + cy + bpp*x;
if( *data || *(data+1) || *(data+2) )
{
if (y < theRect->top) theRect->top = y;
if (y+1 > theRect->bottom) theRect->bottom = y+1;
if (x < theRect->left) theRect->left = x;
if (x+1 > theRect->right) theRect->right = x+1;
}
}
}
}
else // 16
{
for(y=0; y<im->height; y++)
{
cy = y * im->bytesPerLine;
for(x=0; x<im->width; x++)
{
data = alpha + cy + bpp*x;
if( *((USHORT*)data) || *(((USHORT*)data)+1) || *(((USHORT*)data)+2) )
{
if (y < theRect->top) theRect->top = y;
if (y+1 > theRect->bottom) theRect->bottom = y+1;
if (x < theRect->left) theRect->left = x;
if (x+1 > theRect->right) theRect->right = x+1;
}
}
}
}
}
if (theRect->bottom <= theRect->top) { // no valid pixels found
theRect->top = 0;
theRect->left = 0;
theRect->bottom = im->height;
theRect->right = im->width;
}
//printf("Image Rectangle = %d,%d - %d,%d\n", theRect->left, theRect->top, theRect->right, theRect->bottom);
#if 0
{ char msg[1000];
sprintf(msg,"width=%d, height=%d, top = %d, bottom = %d, left = %d, right = %d\n",
im->width, im->height, theRect->top, theRect->bottom, theRect->left, theRect->right);
PrintError(msg);
}
#endif
}
// Image is added to layer structure of file.
// There must be one valid layer structure, and the
// filepointer is at the beginning of it in both src and dest
static int addLayer( Image *im, file_spec src, file_spec fnum, stBuf *sB )
{
pt_uint32 var;
PTRect theRect, *nRect = NULL;
int channelLength, bpp, oddSized = 0, oddSizedOld = 0;
int result = 0;
size_t count;
short svar;
char data[12], *d;
unsigned char ch;
int i, k, lenLayerInfo, numLayers,channels,psdchannels;
unsigned int BitsPerChannel;
int *nchannel = NULL,
*cnames = NULL, *nextra = NULL,
*nmask = NULL, *chid = NULL,
*maskdata = NULL, *nflag = NULL;
size_t *chlength = NULL;
unsigned char **alpha = NULL, **buf = NULL;
int hasClipMask = 0; // Create a mask
int hasShapeMask = 0; // Create alpha channel
char * blendingModeKey;
int j;
GetChannels( im, channels );
psdchannels = channels;
GetBitsPerChannel( im, BitsPerChannel );
bpp = im->bitsPerPixel/8;
if( channels > 3 ) // Alpha channel present
{
hasClipMask = 1;
psdchannels++;
if ( !hasFeather( im ) )// If there is feathering do Not use Alpha channel for Shape Mask
{ // Only use alpha if there is no feathering
hasShapeMask = 1; // The Alpha channel can be used as a Shape Mask
}
if( sB->seam == _middle ) // we have to stitch
{
alpha = (unsigned char**) mymalloc( (size_t)(im->width * im->height * BitsPerChannel/8));
}
}
if( alpha != NULL )
{
memset( *alpha, 0 , (size_t)(im->width * im->height * BitsPerChannel/8));
}
getImageRectangle( im, &theRect );
channelLength = (theRect.right-theRect.left) * (theRect.bottom-theRect.top) + 2;
// Read layerinfo up to channeldata
READINT32( var ); // Length of the miscellaneous information section (ignored)
READINT32( var ); // Length of the layers info section, rounded up to a multiple of 2(ignored)
READSHORT( numLayers ); // Number of layers
chlength = (size_t*) malloc( numLayers * sizeof( int ));
nchannel = (int*) malloc( numLayers * sizeof( int ));
cnames = (int*) malloc( numLayers * sizeof( int ));
nRect = (PTRect*) malloc( numLayers * sizeof( PTRect ));
nextra = (int*) malloc( numLayers * sizeof( int ));
nmask = (int*) malloc( numLayers * sizeof( int ));
maskdata = (int*) malloc( numLayers * 5 * sizeof( int ));
chid = (int*) malloc( numLayers * 5 * sizeof( int ));// five posible channels
nflag = (int*) malloc( numLayers * 5 * sizeof( int ));
if( chlength == NULL || nchannel== NULL || nRect == NULL ||
cnames == NULL || nextra == NULL || nmask == NULL ||
maskdata == NULL || chid == NULL || nflag == NULL )
{
PrintError("Not enough memory 1");
result = -1;
goto _addLayer_exit;
}
lenLayerInfo = 2;
for(i=0; i<numLayers; i++)
{
READINT32( nRect[i].top ) ; // Layer top
READINT32( nRect[i].left ) ; // Layer left
READINT32( nRect[i].bottom) ; // Layer bottom
READINT32( nRect[i].right ) ; // Layer right
READSHORT( nchannel[i] ); // The number of channels in the layer.
// ********** Channel information ***************************** //
READSHORT( chid[i*5 +0]); // red
READINT32(chlength[i]); // Length of following channel data.
READSHORT( chid[i*5 +1] ); // green
READINT32(chlength[i]); // Length of following channel data.
READSHORT( chid[i*5 +2] ); // blue
READINT32(chlength[i]); // Length of following channel data.
if( nchannel[i] > 3 ) // 1st alpha channel
{
READSHORT( chid[i*5 +3] ); // transparency mask
READINT32( chlength[i]); // Length of following channel data.
}
if( nchannel[i] > 4 ) // 2nd alpha channel
{
READSHORT( chid[i*5 +4] ); // transparency mask
READINT32( chlength[i]); // Length of following channel data.
}
// ********** End Channel information ***************************** //
READINT32( var ); // Blend mode signature Always 8BIM.
READINT32( var ); // Blend mode key
READINT32( nflag[i] ); // Four flag bytes: Opacity, clipping, flag, filler
READINT32( nextra[i] ); // Extra data size Length of the extra data field. This is the total length of the next five fields.
READINT32( nmask[i] ); // Layer Mask data length
if(nmask[i])
for(k=0; k<nmask[i]/4; k++) // either 0 or 20
{
READINT32 ( maskdata[i*5 +k] ); // Layer Mask Data
}
READINT32( var ); // Layer blending ranges
READINT32( cnames[i] ); // Layer name
var = 4*4 + 2 + nchannel[i] * 6 + 4 + 4 + 4 * 1 + 4 + 4 + nmask[i] + 8 + nchannel[i] * chlength[i]; // length
lenLayerInfo += var;
}
if( 1 == lenLayerInfo%2 ) //odd
{
oddSizedOld = 1;
}
// length of new channel
var = 4*4 + 2 + psdchannels * 6 + 4 + 4 + 4 * 1 + 4 + 12 + psdchannels * channelLength;
if(hasClipMask)
var += 20;
lenLayerInfo += var;
// Length of the layers info section, rounded up to a multiple of 2.
if( 1 == lenLayerInfo%2 ) // odd
{
oddSized = 1; lenLayerInfo++;
}
// Length of the layers info section, rounded up to a multiple of 2.
WRITEINT32( lenLayerInfo + 4 + 4 );
WRITEINT32( lenLayerInfo );
// 2 bytes Count Number of layers. If <0, then number of layers is absolute value,
// and the first alpha channel contains the transparency data for
// the merged result.
WRITESHORT( numLayers + 1);
// Write previous layers, read channel data
for(i=0; i<numLayers; i++)
{
WRITEINT32( nRect[i].top ); // Layer top
WRITEINT32( nRect[i].left ); // Layer left
WRITEINT32( nRect[i].bottom ); // Layer bottom
WRITEINT32( nRect[i].right ); // Layer right
WRITESHORT( nchannel[i] ); // The number of channels in the layer.
// ********** Channel information ***************************** //
WRITESHORT( chid[i*5 +0] ); // red
WRITEINT32( chlength[i] ); // Length of following channel data.
WRITESHORT( chid[i*5 +1] ); // green
WRITEINT32( chlength[i] ); // Length of following channel data.
WRITESHORT( chid[i*5 +2] ); // blue
WRITEINT32( chlength[i] ); // Length of following channel data.
if( nchannel[i] > 3 ) // 1st alpha channel
{
WRITESHORT( chid[i*5 +3] ); // channel ID
WRITEINT32( chlength[i] ); // Length of following channel data.
}
if( nchannel[i] > 4 ) // 2nd alpha channel
{
WRITESHORT( chid[i*5 +4] ); // channel ID
WRITEINT32( chlength[i] ); // Length of following channel data.
}
// ********** End Channel information ***************************** //
// WRITEINT32( '8BIM'); // Blend mode signature Always 8BIM.
WRITEUCHAR( '8' );
WRITEUCHAR( 'B' );
WRITEUCHAR( 'I' );
WRITEUCHAR( 'M' );
// WRITEINT32( 'norm'); // Blend mode key
if (i == 0) {
//use norm
WRITEUCHAR( 'n' );
WRITEUCHAR( 'o' );
WRITEUCHAR( 'r' );
WRITEUCHAR( 'm' );
} else {
// use the desired one.
// XXX TODO: read the blending more from the layer so we can write it the same way back
assert(sizeof(psdBlendingModesNames) == sizeof(psdBlendingModesInternalName));
blendingModeKey = psdBlendingModesInternalName[sB->psdBlendingMode];
for (j = 0; j< 4; j++ ) {
WRITEUCHAR(blendingModeKey[j]);
}
}
WRITEINT32( nflag[i] ); // Opacity, clipping, flag, filler
WRITEINT32( nextra[i] ); // Extra data size Length of the extra data field. This is the total length of the next five fields.
WRITEINT32( nmask[i] ); // Layer Mask data
if(nmask[i])
for(k=0; k<nmask[i]/4; k++) // either 0 or 20
{
WRITEINT32 ( maskdata[i*5 +k] ); // Layer Mask Data
}
WRITEINT32( 0 ); // Layer blending ranges
WRITEINT32( cnames[i] ); // Layer name
}
// ************** The New Layer ************************************ //
// ********** Layer Structure ********************************* //
// PrintError("Adding layer : top %d, left %d, bottom %d, right %d, size %d\n",
// theRect.top, theRect.left, theRect.bottom, theRect.right, channelLength);
WRITEINT32( theRect.top ); // Layer top
WRITEINT32( theRect.left ); // Layer left
WRITEINT32( theRect.bottom ) ; // Layer bottom
WRITEINT32( theRect.right ) ; // Layer right
WRITESHORT( psdchannels ); // The number of channels in the layer.
// ********** Channel information ***************************** //
WRITESHORT( 0 ); // red
WRITEINT32( channelLength ) // Length of following channel data.
WRITESHORT( 1 ); // green
WRITEINT32( channelLength ) // Length of following channel data.
WRITESHORT( 2 ); // blue
WRITEINT32( channelLength ) // Length of following channel data.
if( hasClipMask ) // Mask channel
{
WRITESHORT( -1); // Shape Mask
WRITEINT32( channelLength ); // Length of following channel data.
WRITESHORT( -2); // Clip Mask
WRITEINT32( channelLength ); // Length of following channel data.
}
// ********** End Channel information ***************************** //
// WRITEINT32( '8BIM'); // Blend mode signature Always 8BIM.
WRITEUCHAR( '8' );
WRITEUCHAR( 'B' );
WRITEUCHAR( 'I' );
WRITEUCHAR( 'M' );
// the next 4 bytes are the blending mode key
/* WRITEINT32( 'norm'); // Blend mode key */
assert(PSD_NUMBER_BLENDING_MODES == sizeof(psdBlendingModesNames)/sizeof(char*));
assert(sizeof(psdBlendingModesNames) == sizeof(psdBlendingModesInternalName));
blendingModeKey = psdBlendingModesInternalName[sB->psdBlendingMode];
for (j = 0; j< 4; j++ )
{
WRITEUCHAR(blendingModeKey[j]);
}
WRITEUCHAR(sB->psdOpacity); // 1 byte Opacity 0 = transparent ... 255 = opaque
WRITEUCHAR( 0 ); // 1 byte Clipping 0 = base, 1 = non�base
WRITEUCHAR( hasShapeMask ); // 1 byte Flags bit 0 = transparency protected bit 1 = visible
WRITEUCHAR( 0 ); // 1 byte (filler) (zero)
if(hasClipMask)
{
WRITEINT32( 32); // Extra data size Length of the extra data field. This is the total length of the next five fields.
WRITEINT32( 20 ); // Yes Layer Mask data
WRITEINT32( theRect.top ); // Layer top
WRITEINT32( theRect.left ); // Layer left
WRITEINT32( theRect.bottom ) ; // Layer bottom
WRITEINT32( theRect.right ) ; // Layer right
WRITEUCHAR( 0 ) ; // Default color 0 or 255
WRITEUCHAR( 0 ) ; // Flag: bit 0 = position relative to layer bit 1 = layer mask disabled bit 2 = invert layer mask when blending
WRITEUCHAR( 0 ) ; // padding
WRITEUCHAR( 0 ) ; // padding
}
else
{
WRITEINT32( 12); // Extra data size Length of the extra data field. This is the total length of the next five fields.
WRITEINT32( 0 ); // No Layer Mask data
}
WRITEINT32( 0 ); // Layer blending ranges
sprintf(&(data[1]), "L%02d", numLayers+1 ); data[0] = 3;
count = 4;
mywrite( fnum, count, data ); // Layer Name
// ************* End Layer Structure ******************************* //
// ************* Write Channel Image data ************************** //
for( i=0; i< numLayers; i++)
{
buf = (unsigned char**) mymalloc( chlength[i] );
if( buf == NULL )
{
PrintError("Not enough memory, %d bytes needed", (int)chlength[i]);
result = -1;
goto _addLayer_exit;
}
for( k=0; k< nchannel[i]; k++ )
{
fileCopy( src, fnum, chlength[i], *buf );
//printf("Compression Layer %d Channel %d: %d\n", i,k,(int)*((short*)*buf));
if( chid[i*5 +k] == -1 ) // found an alpha channel
{
if( alpha!= NULL )
{
orAlpha( *alpha, &((*buf)[2]), im, &(nRect[i]) );
}
}
}
myfree( (void**)buf );
}
if( 1 == oddSizedOld%2 ) // If an odd number of odd layers then there is a single pad byte
{
READUCHAR( ch );
}
// Write color channels
for( i=0; i<3; i++)
{
if( writeChannelData( im, fnum, i + channels - 3, &theRect ) )
{
result = -1;
goto _addLayer_exit;
}
}
if( hasShapeMask ) // Alpha channel present
{
if( writeChannelData( im, fnum, 0, &theRect ) )
{
result = -1;
goto _addLayer_exit;
}
}
else
{
if( writeTransparentAlpha(im, fnum, &theRect ) )
{
result = -1;
goto _addLayer_exit;
}
}
if( hasClipMask )
{
if( sB->seam == _middle && alpha != NULL ) // Create stitching mask
{
mergeAlpha( im, *alpha, sB->feather, &theRect );
#if 0
{
static nim = 0;
fullPath fp;
makePathToHost( &fp );
sprintf( (char*)fp.name, "Test.%d", nim++);
PrintError("creating file: %s", fp.name);
c2pstr((char*)fp.name);
mycreate( &fp, '8BIM', '8BPS' );
writePSD(im, &fp );
}
#endif
}
if( writeChannelData( im, fnum, 0, &theRect ) )
{
result = -1;
goto _addLayer_exit;
}
}
if( oddSized ) // pad byte
{
WRITEUCHAR( 0 );
}
// ************* End Write Channel Image data ************************** //
// ************* Global layer mask info ******************************** //
READINT32( var ); WRITEINT32( 0 ); // Length of global layer mask info section.
//READSHORT( svar ); WRITESHORT( 0 ); // 2 bytes Overlay color space
//READSHORT( svar ); WRITESHORT( 0 ); // 4 * 2 byte color components
//READSHORT( svar ); WRITESHORT( 0 );
//READSHORT( svar ); WRITESHORT( 0 );
//READSHORT( svar ); WRITESHORT( 0 );
//READSHORT( svar ); WRITESHORT( 0 ); // 2 bytes Opacity 0 = transparent, 100 = opaque.
//READSHORT( svar ); WRITEUCHAR( 128 ); // 1 byte Kind 0=Color selected�i.e. inverted;
// 1=Color protected;128=use value stored per layer.
// This value is preferred. The others are for back-ward
// compatibility with beta versions.
//WRITEUCHAR( 0 );
_addLayer_exit:
if( alpha != NULL ) myfree( (void**)alpha );
if( chlength != NULL ) free(chlength);
if( nchannel != NULL ) free(nchannel);
if( nRect != NULL ) free(nRect);
if( cnames != NULL ) free(cnames);
if( nextra != NULL ) free(nextra);
if( nmask != NULL ) free(nmask);
if( maskdata != NULL ) free(maskdata);
if( chid != NULL ) free(chid);
if( nflag != NULL ) free(nflag);
return result;
}
static int fileCopy( file_spec src, file_spec dest, size_t numBytes, unsigned char *buf )
{
size_t count = numBytes;
myread( src, count, buf );
mywrite( dest, count, buf );
return 0;
}
// Or two alpha channels: one in alpha (same size as image im)
// one in buf comprising the rectangle top,bottom,left,right
// store result in alpha
static void orAlpha( unsigned char* alpha, unsigned char *buf, Image *im, PTRect *theRect )
{
register int x,y,ay,by,w;
int BitsPerChannel;
GetBitsPerChannel( im, BitsPerChannel );
if( im->bitsPerPixel != 32 && im->bitsPerPixel != 64 && im->bitsPerPixel != 128) return;
w = (theRect->right - theRect->left);
if( BitsPerChannel == 8 )
{
for(y=theRect->top; y<theRect->bottom; y++)
{
ay = y * im->width;
by = (y - theRect->top) * w;
{
for(x=theRect->left; x<theRect->right; x++)
{
if( buf[ by + x - theRect->left ] )
alpha[ ay + x ] = 255U;
}
}
}
}
if( BitsPerChannel == 16 )
{
for(y=theRect->top; y<theRect->bottom; y++)
{
ay = y * im->width * 2;
by = (y - theRect->top) * w * 2;
{
for(x=theRect->left; x<theRect->right; x++)
{
if( *((USHORT*)(buf+ by + 2*(x - theRect->left))) )
*((USHORT*)(alpha + ay + 2*x) ) = 65535U;
}
}
}
}
if( BitsPerChannel == 32 )
{
for(y=theRect->top; y<theRect->bottom; y++)
{
ay = y * im->width * 2;
by = (y - theRect->top) * w * 2;
{
for(x=theRect->left; x<theRect->right; x++)
{
if( *((float*)(buf+ by + 2*(x - theRect->left))) )
*((float*)(alpha + ay + 2*x) ) = 1.0;
}
}
}
}
}
void FindScript( aPrefs *thePrefs )
{
FindFile( &(thePrefs->scriptFile) );
}
int LoadOptions( cPrefs * thePrefs )
{
fullPath path;
file_spec fnum;
struct correct_Prefs loadPrefs;
size_t count;
int result;
if( FindFile( &path ) )
{
return -1;
}
if( myopen( &path, read_bin, fnum ))
{
PrintError("Could not open file");
return -1;
}
count = sizeof( struct correct_Prefs);
myread( fnum, count, &loadPrefs );
if( count != sizeof( struct correct_Prefs) || loadPrefs.magic != 20 )
{
PrintError( "Wrong format!");
result = -1;
}
else
{
memcpy((char*) thePrefs, (char*)&loadPrefs, sizeof(struct correct_Prefs));
result = 0;
}
myclose(fnum);
return result;
}
char* LoadScript( fullPath* scriptFile )
{
fullPath sfile;
int i;
file_spec fnum;
size_t count;
char *script = NULL, ch;
memset( &sfile, 0, sizeof( fullPath ) );
if( memcmp( scriptFile, &sfile, sizeof( fullPath ) ) == 0 )
{
PrintError("No Scriptfile selected");
goto _loadError;
}
if( myopen( scriptFile, read_text, fnum ))
{
PrintError("Error Opening Scriptfile: %s", scriptFile->name);
goto _loadError;
}
count = 1; i=0; // Get file length
while( count == 1 )
{
myread( fnum, count, &ch );
if(count==1) i++;
}
myclose(fnum);
count = i;
script = (char*)malloc( count+1 );
if( script == NULL )
{
PrintError("Not enough memory to load scriptfile");
goto _loadError;
}
if( myopen( scriptFile, read_text, fnum ))
{
PrintError("Error Opening Scriptfile: %s", scriptFile->name);
free(script);
goto _loadError;
}
myread(fnum,count,script);
script[count] = 0;
myclose(fnum);
return script;
_loadError:
return (char*)NULL;
}
int WriteScript( char* res, fullPath* scriptFile, int launch )
{
fullPath sfile;
file_spec fnum;
size_t count;
memset( &sfile, 0, sizeof( fullPath ) );
if( memcmp( scriptFile, &sfile, sizeof( fullPath ) ) == 0 )
{
PrintError("No Scriptfile selected");
goto _writeError;
}
memcpy( &sfile, scriptFile, sizeof (fullPath) );
mydelete( &sfile );
mycreate(&sfile,'ttxt','TEXT');
if( myopen( &sfile, write_text, fnum ) )
{
PrintError("Error Opening Scriptfile");
goto _writeError;
}
count = strlen( res );
mywrite( fnum, count, res );
myclose (fnum );
if( launch == 1 )
{
showScript( &sfile);
}
return 0;
_writeError:
return -1;
}
void SaveOptions( cPrefs * thePrefs )
{
fullPath path;
file_spec fspec;
size_t count;
memset( &path, 0, sizeof( fullPath ));
if( SaveFileAs( &path, "Save Settings as..", "Params" ) )
return;
mycreate (&path,'GKON','TEXT');
if( myopen( &path, write_bin, fspec ) )
return;
count = sizeof( cPrefs );
mywrite( fspec, count, thePrefs );
myclose( fspec );
}
// Temporarily save a 32bit image (including Alpha-channel) using name fname
int SaveBufImage( Image *image, char *fname )
{
fullPath fspec;
MakeTempName( &fspec, fname );
mydelete( &fspec );
mycreate( &fspec, '8BIM', '8BPS');
return writePSD(image, &fspec);
}
// Load a saved 32bit image (including Alpha-channel) using name fname
// image must be allocated (not data)
// mode = 0: only load image struct
// mode = 1: also allocate and load data
int LoadBufImage( Image *image, char *fname, int mode)
{
fullPath fspec;
MakeTempName( &fspec, fname );
return readPSD(image, &fspec, mode);
}
// Read Photoshop Multilayer-image
int readPSDMultiLayerImage( MultiLayerImage *mim, fullPath* sfile){
file_spec src;
char header[128], *h;
size_t chlength;
size_t count, iul, kul;
pt_uint32 var;
char data[12], *d;
short svar;
int i, k, result = 0,nchannel, odd = 0;
unsigned char **buf = NULL, ch;
Image im;
int BitsPerSample = 8;
SetImageDefaults( &im );
if( myopen( sfile,read_bin, src ) ){
PrintError("Error Opening Image File");
return -1;
}
// Read psd header
h = header;
count = PSDHLENGTH;
myread( src,count,h);
if( count != PSDHLENGTH ){
PrintError("Error Reading Image Header");
myclose( src );
return -1;
}
if( ParsePSDHeader( header, &im ) != 0 ){
PrintError("readPSDMultiLayerImage: Wrong File Format");
myclose( src );
return -1;
}
// Read (and ignore) Color mode data
READINT32( var );
count = 1;
for( iul=0; iul<var; iul++ )
{
myread(src,count,h);
}
// Read (and ingnore) Image resources
READINT32( var );
count = 1;
for( iul=0; iul<var; iul++ )
{
myread(src,count,h);
}
// Read the layers
// Read layerinfo up to channeldata
READINT32( var ); // Length of info section(ignored)
READINT32( var ); // Length of layer info (ignored)
READSHORT( mim->numLayers ); // Number of layers
mim->Layer = (Image*) malloc( mim->numLayers * sizeof( Image ) );
if( mim->Layer == NULL )
{
PrintError("Not enough memory");
result = -1;
goto readPSDMultiLayerImage_exit;
}
for(i=0; i<mim->numLayers; i++)
{
SetImageDefaults( &mim->Layer[i] );
mim->Layer[i].width = im.width;
mim->Layer[i].height = im.height;
READINT32( mim->Layer[i].selection.top ) ; // Layer top
READINT32( mim->Layer[i].selection.left ); // Layer left
READINT32( mim->Layer[i].selection.bottom); // Layer bottom
READINT32( mim->Layer[i].selection.right ); // Layer right
READSHORT( nchannel ); // The number of channels in the layer.
mim->Layer[i].bitsPerPixel = nchannel * BitsPerSample;
mim->Layer[i].bytesPerLine = (mim->Layer[i].selection.right - mim->Layer[i].selection.left) *
mim->Layer[i].bitsPerPixel/8;
mim->Layer[i].dataSize = mim->Layer[i].bytesPerLine *
(mim->Layer[i].selection.bottom - mim->Layer[i].selection.top);
mim->Layer[i].data = (unsigned char**) mymalloc((size_t)(mim->Layer[i].dataSize));
if( mim->Layer[i].data == NULL )
{
PrintError("Not enough memory");
result = -1;
goto readPSDMultiLayerImage_exit;
}
// ********** Channel information ***************************** //
READSHORT( svar ); // red
READINT32(chlength);// Length of following channel data.
READSHORT( svar ); // green
READINT32(var); // Length of following channel data.
READSHORT( svar ); // blue
READINT32(var); // Length of following channel data.
if( 3 < nchannel ) // alpha channel
{
READSHORT( svar ); // transparency mask
READINT32( var); // Length of following channel data.
}
if( 4 < nchannel ) // alpha channel
{
READSHORT( svar ); // transparency mask
READINT32( var); // Length of following channel data.
}
// ********** End Channel information ***************************** //
READINT32( var ); // Blend mode signature Always 8BIM.
READINT32( var ); // Blend mode key
READINT32( var ); // Four flag bytes
READINT32( var ); // Extra data size Length of the extra data field. This is the total length of the next five fields.
READINT32( var ); // Layer Mask data
if(var) // either 0 or 20
{
for(kul=0; kul<var; kul++)
{
READUCHAR ( ch ); // Layer Mask Data
}
}
READINT32( var ); // Layer blending ranges
READINT32( var ); // Layer name
var = 4*4 + 2 + nchannel * 6 + 4 + 4 + 4 * 1 + 4 + 12 + nchannel * chlength; // length
if( var/2 != (var+1)/2 ) // odd
{
odd++;
}
}
// ************* End Layer Structure ******************************* //
// ************* Read Channel Image data ************************** //
for( i=0; i< mim->numLayers; i++)
{
nchannel = mim->Layer[i].bitsPerPixel/BitsPerSample;
chlength = mim->Layer[i].dataSize/ nchannel;
buf = (unsigned char**) mymalloc( chlength );
if( buf == NULL )
{
PrintError("Not enough memory");
result = -1;
goto readPSDMultiLayerImage_exit;
}
for( k=0; k< nchannel; k++ )
{
READSHORT( svar );
if( svar != 0 )
{
PrintError("File format error");
result = -1;
goto readPSDMultiLayerImage_exit;
}
count = chlength;
myread( src, count, *buf );
{
register int x,y,cy,by;
register unsigned char* theData = *(mim->Layer[i].data);
int offset,bpp;
// JMW ToDo Upgrade allow 16 bit.
offset = (mim->Layer[i].bitsPerPixel == 32?1:0) + k;
if( k==3 ) offset = 0;
bpp = mim->Layer[i].bitsPerPixel/8;
for(y=0; y<mim->Layer[i].height; y++)
{
cy = y*mim->Layer[i].bytesPerLine + offset;
by = y*mim->Layer[i].width;
for(x=0; x<mim->Layer[i].width; x++)
{
theData[cy + bpp*x] = (*buf)[by + x];
}
}
}
}
myfree( (void**)buf );
}
if( 1 == odd%2 ) // pad byte
{
READUCHAR( ch );
}
readPSDMultiLayerImage_exit:
myclose( src );
return result;
}
// JMW: July 2 2004, Check to see if alpha has any semi transparent pixels.
// Also check to see if alpha is completely black
// If completely black or using feathering then alpha
// channel can not be used as shape mask.
int hasFeather ( Image *im )
{
register int y, x, a;
register unsigned char *alpha;
int BitsPerChannel;
GetBitsPerChannel( im, BitsPerChannel );
if( im->bitsPerPixel != 32 && im->bitsPerPixel != 64) return 1;
a = 1;
if( BitsPerChannel == 8 )
{
for(y=0; y<im->height; y++)
{
for(x=0, alpha = *(im->data) + y * im->bytesPerLine; x<im->width;
x++, alpha += 4)
{
if(a && *alpha != 0)// have data
a = 0;
if( *alpha != 0 && *alpha != 255 )
return 1;
}
}
}
else // 16
{
for(y=0; y<im->height; y++)
{
for(x=0, alpha = *(im->data) + y * im->bytesPerLine; x<im->width;
x++, alpha += 8)
{
if(a && *((USHORT*)alpha) != 0 )// have data
a = 0;
if( *((USHORT*)alpha) != 0xFFFF && *((USHORT*)alpha) != 0 )
return 1;
}
}
}
return a;
}
// Create a temporary file
int panoFileMakeTemp(fullPath * path)
{
file_spec fnum;
char *dir;
static int try = 0;
int i;
char fname[40];
dir = strrchr(path->name, PATH_SEP);
if (dir == NULL) {
dir = path->name;
}
else {
dir++;
}
try++;
for (i = 0; i < MAX_TEMP_TRY; try++, i++) {
sprintf(fname, "_PTStitcher_tmp_%06d", try);
if (strlen(fname) + 2 <
sizeof(path->name) - (strlen(path->name) - strlen(dir))) {
sprintf(dir, "%s", fname);
// TODO (dmg -- 060730)
// THis routine is not perfect. IT does not check if the
// file is really a file, nor that there is write access to it
if (myopen(path, read_bin, fnum)) {
return TRUE;
}
myclose(fnum);
}
else {
PrintError("Path too long");
return FALSE;
}
}
return FALSE;
}
// Read an image
int panoImageRead(Image * im, fullPath * sfile)
{
char *ext, extension[5];
int i;
assert(sfile != NULL);
assert(im != NULL);
printf("Filename %s\n", sfile->name);
ext = strrchr(sfile->name, '.');
if (ext == NULL || strlen(ext) < 4 || strlen(ext) > 5) {
PrintError("Unsupported file format [%s]: must have extension JPG, PNG, TIF, BMP or HDR", sfile);
return 0;
}
ext++;
strcpy(extension, ext);
// convert to lowercase
for (i = 0; i < 4; i++)
extension[i] = tolower(extension[i]);
if (strcmp(extension, "ppm") == 0) {
return panoPPMRead(im, sfile);
}
else if (strcmp(extension, "jpg") == 0) {
return panoJPEGRead(im, sfile);
}
else if (strcmp(extension, "tif") == 0 || strcmp(extension, "tiff") == 0) {
return panoTiffRead(im, sfile->name);
}
else if (strcmp( extension, "bmp" ) == 0 ) {
#ifdef WIN32
return panoBMPRead( im, sfile );
#else
PrintError("BMP is not a supported format in this operating system");
return FALSE;
#endif
}
else if( strcmp( extension, "png" ) == 0 ) {
return panoPNGRead(im, sfile );
}
else if (strcmp( extension, "hdr" ) == 0 ) {
return panoHDRRead(im, sfile );
}
else {
PrintError("Unsupported file format [%s]: must have extension JPG, PNG, TIF, BMP, PPM or HDR", sfile);
return FALSE;
}
// it should never get here
assert(0);
}
// Takes a prefix, and creates a list of unique filenames
int panoFileOutputNamesCreate(fullPath *ptrOutputFiles, int filesCount, char *outputPrefix)
{
int i;
char outputFilename[MAX_PATH_LENGTH];
// I am sure we will never have more than 10000 images in a project!
#define DEFAULT_PREFIX_NUMBER_FORMAT "%04d"
printf("Output prefix %d %s\n",filesCount, outputPrefix);
if (strchr(outputPrefix, '%') == NULL) {
if ((strlen(outputPrefix) + strlen(DEFAULT_PREFIX_NUMBER_FORMAT)) >= MAX_PATH_LENGTH) {
PrintError("Output prefix too long [%s]", outputPrefix);
return 0;
}
strcat(outputPrefix, DEFAULT_PREFIX_NUMBER_FORMAT);
}
for (i =0; i< filesCount ; i++) {
sprintf(outputFilename, outputPrefix, i);
// Verify the filename is different from the prefix
if (strcmp(outputFilename, outputPrefix) == 0) {
PrintError("Invalid output prefix. It does not generate unique filenames.");
return -1;
}
if (StringtoFullPath(&ptrOutputFiles[i], outputFilename) != 0) {
PrintError("Syntax error: Not a valid pathname");
return(-1);
}
panoReplaceExt(ptrOutputFiles[i].name, ".tif");
// fprintf(stderr, "Output filename [%s]\n", ptrOutputFiles[i].name);
}
return 1;
}
// Find the first file that exists in the input array of filenames
char *panoFileExists(fullPath *ptrFiles, int filesCount)
{
int i;
FILE *testFile;
for (i =0; i< filesCount ; i++) {
if ((testFile = fopen(ptrFiles[i].name, "r"))!= NULL) {
fclose(testFile);
return ptrFiles[i].name;
}
}
return NULL;
}
// Check if a file exists. Returns 1 if it does exist, 0 otherwise
int panoSingleFileExists(char * filename)
{
FILE *testFile;
if ((testFile = fopen(filename, "r"))!= NULL) {
fclose(testFile);
return 1;
}
return 0;
}
#ifdef DONOTCOMPILE_TOBE_DELETED
I am not sure this function is used at all
int writeImage( Image *im, fullPath *sfile )
{
char *ext,extension[4];
int i;
ext = strrchr( sfile->name, '.' );
ext++;
strcpy( extension, ext );
for(i=0; i<3; i++)
extension[i] = tolower(extension[i]);
if( strcmp( extension, "jpg" ) == 0 )
return writeJPEG(im, sfile, 90, 0 );
else if( strcmp( extension, "tif" ) == 0 )
return writeTIFF(im, sfile );
else if( strcmp( extension, "png" ) == 0 )
return writePNG(im, sfile );
else if( strcmp( extension, "hdr" ) == 0 )
return writeHDR(im, sfile );
else {
return writeBMP( im, sfile );
}
}
#endif
int panoFileDeleteMultiple(fullPath* files, int filesCount)
{
extern int ptQuietFlag;
int i;
assert(files != NULL);
for (i = 0; i < filesCount; i++) {
if (!ptQuietFlag) {
PrintError("Deleting %-th source file %s", i, files[i].name);
}
if(remove(files[i].name) != 0) {
PrintError("Unable to remove file %s. Continuing", files[i].name);
}
}
return 1;
}