1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
// This library is distributed under the conditions of the GNU LGPL.
#include "config.h"
#ifdef HAVE_LIBTIFF
#include <tiffio.h>
#include <tqimage.h>
#include <tqfile.h>
#include <tdelibs_export.h>
#include <assert.h>
#include "tiffr.h"
static tsize_t tiff_read( thandle_t handle, tdata_t buf, tsize_t size )
{
TQIODevice *dev = reinterpret_cast<TQIODevice *>( handle );
return dev->readBlock( reinterpret_cast<char *>( buf ), size );
}
static tsize_t tiff_write( thandle_t, tdata_t, tsize_t )
{
return 0;
}
static toff_t tiff_seek( thandle_t handle, toff_t off, int whence )
{
TQIODevice *dev = reinterpret_cast<TQIODevice *>( handle );
if ( whence == SEEK_CUR )
off += dev->tqat();
else if ( whence == SEEK_END )
off += dev->size();
if ( !dev->tqat( off ) )
return ( toff_t )-1;
return dev->tqat();
}
static toff_t tiff_size( thandle_t handle )
{
TQIODevice *dev = reinterpret_cast<TQIODevice *>( handle );
return dev->size();
}
static int tiff_close( thandle_t )
{
return 0;
}
static int tiff_map( thandle_t, tdata_t *, toff_t * )
{
return 0;
}
static void tiff_unmap( thandle_t, tdata_t, toff_t )
{
}
KDE_EXPORT void kimgio_tiff_read( TQImageIO *io )
{
TIFF *tiff;
uint32 width, height;
uint32 *data;
// FIXME: use qdatastream
// open file
tiff = TIFFClientOpen( TQFile::encodeName( io->fileName() ), "r",
( thandle_t )io->ioDevice(),
tiff_read, tiff_write, tiff_seek, tiff_close,
tiff_size, tiff_map, tiff_unmap );
if( tiff == 0 ) {
return;
}
// create image with loaded dimensions
if( TIFFGetField( tiff, TIFFTAG_IMAGEWIDTH, &width ) != 1
|| TIFFGetField( tiff, TIFFTAG_IMAGELENGTH, &height ) != 1 )
return;
TQImage image( width, height, 32 );
if( image.isNull()) {
TIFFClose( tiff );
return;
}
data = (uint32 *)image.bits();
//Sven: changed to %ld for 64bit machines
//debug( "unsigned size: %ld, uint32 size: %ld",
// (long)sizeof(unsigned), (long)sizeof(uint32) );
// read data
bool stat =TIFFReadRGBAImage( tiff, width, height, data );
if( stat == 0 ) {
TIFFClose( tiff );
return;
}
// reverse red and blue
for( unsigned i = 0; i < width * height; ++i )
{
uint32 red = ( 0x00FF0000 & data[i] ) >> 16;
uint32 blue = ( 0x000000FF & data[i] ) << 16;
data[i] &= 0xFF00FF00;
data[i] += red + blue;
}
// reverse image (it's upside down)
for( unsigned ctr = 0; ctr < (height>>1); ) {
unsigned *line1 = (unsigned *)image.scanLine( ctr );
unsigned *line2 = (unsigned *)image.scanLine( height
- ( ++ctr ) );
for( unsigned x = 0; x < width; x++ ) {
int temp = *line1;
*line1 = *line2;
*line2 = temp;
line1++;
line2++;
}
// swap rows
}
// set channel order to Qt order
// FIXME: Right now they are the same, but will it change?
// for( int ctr = (image.numBytes() / sizeof(uint32))+1; ctr ; ctr-- ) {
// // TODO: manage alpha with TIFFGetA
// *data = tqRgb( TIFFGetR( *data ),
// TIFFGetG( *data ), TIFFGetB( *data ) );
// data++;
// }
TIFFClose( tiff );
io->setImage( image );
io->seStatus ( 0 );
}
KDE_EXPORT void kimgio_tiff_write( TQImageIO * )
{
// TODO: stub
}
#endif
|
