static int
PackBitsDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s)
{
char *bp;
tsize_t cc;
long n;
int b;
(void) s;
bp = (char*) tif->tif_rawcp;
cc = tif->tif_rawcc;
while (cc > 0 && (long)occ > 0) {
n = (long) *bp++, cc--;
/*
* Watch out for compilers that
* don't sign extend chars...
*/
if (n >= 128)
n -= 256;
if (n < 0) { /* replicate next byte -n+1 times */
if (n == -128) /* nop */
continue;
n = -n + 1;
if( occ < n )
{
TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
"PackBitsDecode: discarding %d bytes "
"to avoid buffer overrun",
n - occ);
n = occ;
}
occ -= n;
b = *bp++, cc--;
while (n-- > 0)
*op++ = (tidataval_t) b;
} else { /* copy next n+1 bytes literally */
if (occ < n + 1)
{
TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
"PackBitsDecode: discarding %d bytes "
"to avoid buffer overrun",
n - occ + 1);
n = occ - 1;
}
_TIFFmemcpy(op, bp, ++n);
op += n; occ -= n;
bp += n; cc -= n;
}
}
tif->tif_rawcp = (tidata_t) bp;
tif->tif_rawcc = cc;
if (occ > 0) {
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
"PackBitsDecode: Not enough data for scanline %ld",
(long) tif->tif_row);
return (0);
}
return (1);
}
static int
PackBitsDecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s)
{
static const char module[] = "PackBitsDecode";
char *bp;
tmsize_t cc;
long n;
int b;
(void) s;
bp = (char*) tif->tif_rawcp;
cc = tif->tif_rawcc;
while (cc > 0 && occ > 0) {
n = (long) *bp++, cc--;
/*
* Watch out for compilers that
* don't sign extend chars...
*/
if (n >= 128)
n -= 256;
if (n < 0) { /* replicate next byte -n+1 times */
if (n == -128) /* nop */
continue;
n = -n + 1;
if( occ < (tmsize_t)n )
{
TIFFWarningExt(tif->tif_clientdata, module,
"Discarding %lu bytes to avoid buffer overrun",
(unsigned long) ((tmsize_t)n - occ));
n = (long)occ;
}
occ -= n;
b = *bp++, cc--; /* TODO: may be reading past input buffer here when input data is corrupt or ends prematurely */
while (n-- > 0)
*op++ = (uint8) b;
} else { /* copy next n+1 bytes literally */
if (occ < (tmsize_t)(n + 1))
{
TIFFWarningExt(tif->tif_clientdata, module,
"Discarding %lu bytes to avoid buffer overrun",
(unsigned long) ((tmsize_t)n - occ + 1));
n = (long)occ - 1;
}
_TIFFmemcpy(op, bp, ++n); /* TODO: may be reading past input buffer here when input data is corrupt or ends prematurely */
op += n; occ -= n;
bp += n; cc -= n;
}
}
tif->tif_rawcp = (uint8*) bp;
tif->tif_rawcc = cc;
if (occ > 0) {
TIFFErrorExt(tif->tif_clientdata, module,
"Not enough data for scanline %lu",
(unsigned long) tif->tif_row);
return (0);
}
return (1);
}
static int
TWebPVSetField(TIFF* tif, uint32 tag, va_list ap)
{
static const char module[] = "WebPVSetField";
WebPState* sp = LState(tif);
switch (tag) {
case TIFFTAG_WEBP_LEVEL:
sp->quality_level = (int) va_arg(ap, int);
if( sp->quality_level <= 0 ||
sp->quality_level > 100.0f ) {
TIFFWarningExt(tif->tif_clientdata, module,
"WEBP_LEVEL should be between 1 and 100");
}
return 1;
case TIFFTAG_WEBP_LOSSLESS:
#if WEBP_ENCODER_ABI_VERSION >= 0x0100
sp->lossless = va_arg(ap, int);
if (sp->lossless){
sp->quality_level = 100.0f;
}
return 1;
#else
TIFFErrorExt(tif->tif_clientdata, module,
"Need to upgrade WEBP driver, this version doesn't support "
"lossless compression.");
return 0;
#endif
default:
return (*sp->vsetparent)(tif, tag, ap);
}
/*NOTREACHED*/
}
/*
* Setup a directory entry of an array of RATIONAL
* or SRATIONAL and write the associated indirect values.
*/
static int
TIFFWriteRationalArray(TIFF* tif, TIFFDirEntry* dir, float* v)
{
uint32 i;
uint32* t;
int status;
t = (uint32*) _TIFFmalloc(2 * dir->tdir_count * sizeof (uint32));
if (t == NULL) {
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
"No space to write RATIONAL array");
return (0);
}
for (i = 0; i < dir->tdir_count; i++) {
float fv = v[i];
int sign = 1;
uint32 den;
if (fv < 0) {
if (dir->tdir_type == TIFF_RATIONAL) {
TIFFWarningExt(tif->tif_clientdata,
tif->tif_name,
"\"%s\": Information lost writing value (%g) as (unsigned) RATIONAL",
_TIFFFieldWithTag(tif,dir->tdir_tag)->field_name,
fv);
fv = 0;
} else
fv = -fv, sign = -1;
}
den = 1L;
if (fv > 0) {
while (fv < 1L<<(31-3) && den < 1L<<(31-3))
fv *= 1<<3, den *= 1L<<3;
}
t[2*i+0] = (uint32) (sign * (fv + 0.5));
t[2*i+1] = den;
}
status = TIFFWriteData(tif, dir, (char *)t);
_TIFFfree((char*) t);
return (status);
}
/*
* Setup state for decoding a strip.
*/
static int
LZWPreDecode(TIFF* tif, uint16 s)
{
static const char module[] = "LZWPreDecode";
LZWCodecState *sp = DecoderState(tif);
(void) s;
assert(sp != NULL);
if( sp->dec_codetab == NULL )
{
tif->tif_setupdecode( tif );
if( sp->dec_codetab == NULL )
return (0);
}
/*
* Check for old bit-reversed codes.
*/
if (tif->tif_rawcc >= 2 &&
tif->tif_rawdata[0] == 0 && (tif->tif_rawdata[1] & 0x1)) {
#ifdef LZW_COMPAT
if (!sp->dec_decode) {
TIFFWarningExt(tif->tif_clientdata, module,
"Old-style LZW codes, convert file");
/*
* Override default decoding methods with
* ones that deal with the old coding.
* Otherwise the predictor versions set
* above will call the compatibility routines
* through the dec_decode method.
*/
tif->tif_decoderow = LZWDecodeCompat;
tif->tif_decodestrip = LZWDecodeCompat;
tif->tif_decodetile = LZWDecodeCompat;
/*
* If doing horizontal differencing, must
* re-setup the predictor logic since we
* switched the basic decoder methods...
*/
(*tif->tif_setupdecode)(tif);
sp->dec_decode = LZWDecodeCompat;
}
sp->lzw_maxcode = MAXCODE(BITS_MIN);
#else /* !LZW_COMPAT */
if (!sp->dec_decode) {
TIFFErrorExt(tif->tif_clientdata, module,
"Old-style LZW codes not supported");
sp->dec_decode = LZWDecode;
}
return (0);
#endif/* !LZW_COMPAT */
} else {
sp->lzw_maxcode = MAXCODE(BITS_MIN)-1;
sp->dec_decode = LZWDecode;
}
sp->lzw_nbits = BITS_MIN;
sp->lzw_nextbits = 0;
sp->lzw_nextdata = 0;
sp->dec_restart = 0;
sp->dec_nbitsmask = MAXCODE(BITS_MIN);
#ifdef LZW_CHECKEOS
sp->dec_bitsleft = 0;
#endif
sp->dec_free_entp = sp->dec_codetab + CODE_FIRST;
/*
* Zero entries that are not yet filled in. We do
* this to guard against bogus input data that causes
* us to index into undefined entries. If you can
* come up with a way to safely bounds-check input codes
* while decoding then you can remove this operation.
*/
_TIFFmemset(sp->dec_free_entp, 0, (CSIZE-CODE_FIRST)*sizeof (code_t));
sp->dec_oldcodep = &sp->dec_codetab[-1];
sp->dec_maxcodep = &sp->dec_codetab[sp->dec_nbitsmask-1];
return (1);
}
static int
LERCVSetField(TIFF* tif, uint32 tag, va_list ap)
{
static const char module[] = "LERCVSetField";
LERCState* sp = LState(tif);
switch (tag) {
case TIFFTAG_LERC_PARAMETERS:
{
uint32 count = va_arg(ap, int);
int* params = va_arg(ap, int*);
if( count < 2 )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Invalid count for LercParameters: %u", count);
return 0;
}
sp->lerc_version = params[0];
sp->additional_compression = params[1];
return LERCVSetFieldBase(tif, TIFFTAG_LERC_PARAMETERS,
count, params);
}
case TIFFTAG_LERC_MAXZERROR:
sp->maxzerror = va_arg(ap, double);
return 1;
case TIFFTAG_LERC_VERSION:
{
int params[2] = {0, 0};
int version = va_arg(ap, int);
if( version != LERC_VERSION_2_4 )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Invalid value for LercVersion: %d", version);
return 0;
}
sp->lerc_version = version;
params[0] = sp->lerc_version;
params[1] = sp->additional_compression;
return LERCVSetFieldBase(tif, TIFFTAG_LERC_PARAMETERS,
2, params);
}
case TIFFTAG_LERC_ADD_COMPRESSION:
{
int params[2] = {0, 0};
int additional_compression = va_arg(ap, int);
#ifndef ZSTD_SUPPORT
if( additional_compression == LERC_ADD_COMPRESSION_ZSTD )
{
TIFFErrorExt(tif->tif_clientdata, module,
"LERC_ZSTD requested, but ZSTD not available");
return 0;
}
#endif
if( additional_compression != LERC_ADD_COMPRESSION_NONE &&
additional_compression != LERC_ADD_COMPRESSION_DEFLATE &&
additional_compression != LERC_ADD_COMPRESSION_ZSTD )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Invalid value for LercAdditionalCompression: %d",
additional_compression);
return 0;
}
sp->additional_compression = additional_compression;
params[0] = sp->lerc_version;
params[1] = sp->additional_compression;
return LERCVSetFieldBase(tif, TIFFTAG_LERC_PARAMETERS,
2, params);
}
#ifdef ZSTD_SUPPORT
case TIFFTAG_ZSTD_LEVEL:
{
sp->zstd_compress_level = (int) va_arg(ap, int);
if( sp->zstd_compress_level <= 0 ||
sp->zstd_compress_level > ZSTD_maxCLevel() )
{
TIFFWarningExt(tif->tif_clientdata, module,
"ZSTD_LEVEL should be between 1 and %d",
ZSTD_maxCLevel());
}
return 1;
}
#endif
case TIFFTAG_ZIPQUALITY:
{
sp->zipquality = (int) va_arg(ap, int);
return (1);
}
default:
return (*sp->vsetparent)(tif, tag, ap);
}
/*NOTREACHED*/
}
/*
* Setup state for decoding a strip.
*/
static int
LERCPreDecode(TIFF* tif, uint16 s)
{
static const char module[] = "LERCPreDecode";
lerc_status lerc_ret;
TIFFDirectory *td = &tif->tif_dir;
LERCState* sp = DecoderState(tif);
int lerc_data_type;
unsigned int infoArray[8];
unsigned nomask_bands = td->td_samplesperpixel;
int ndims;
int use_mask = 0;
uint8* lerc_data = tif->tif_rawcp;
unsigned int lerc_data_size = (unsigned int)tif->tif_rawcc;
(void) s;
assert(sp != NULL);
lerc_data_type = GetLercDataType(tif);
if( lerc_data_type < 0 )
return 0;
if( !SetupUncompressedBuffer(tif, sp, module) )
return 0;
if( sp->additional_compression != LERC_ADD_COMPRESSION_NONE )
{
if( sp->compressed_size < sp->uncompressed_alloc )
{
_TIFFfree(sp->compressed_buffer);
sp->compressed_buffer = _TIFFmalloc(sp->uncompressed_alloc);
if( !sp->compressed_buffer )
{
sp->compressed_size = 0;
return 0;
}
sp->compressed_size = sp->uncompressed_alloc;
}
}
if( sp->additional_compression == LERC_ADD_COMPRESSION_DEFLATE )
{
z_stream strm;
int zlib_ret;
memset(&strm, 0, sizeof(strm));
strm.zalloc = NULL;
strm.zfree = NULL;
strm.opaque = NULL;
zlib_ret = inflateInit(&strm);
if( zlib_ret != Z_OK )
{
TIFFErrorExt(tif->tif_clientdata, module,
"inflateInit() failed");
inflateEnd(&strm);
return 0;
}
strm.avail_in = (uInt)tif->tif_rawcc;
strm.next_in = tif->tif_rawcp;
strm.avail_out = sp->compressed_size;
strm.next_out = sp->compressed_buffer;
zlib_ret = inflate(&strm, Z_FINISH);
if( zlib_ret != Z_STREAM_END && zlib_ret != Z_OK )
{
TIFFErrorExt(tif->tif_clientdata, module,
"inflate() failed");
inflateEnd(&strm);
return 0;
}
lerc_data = sp->compressed_buffer;
lerc_data_size = sp->compressed_size - strm.avail_out;
inflateEnd(&strm);
}
else if( sp->additional_compression == LERC_ADD_COMPRESSION_ZSTD )
{
#ifdef ZSTD_SUPPORT
size_t zstd_ret;
zstd_ret = ZSTD_decompress(sp->compressed_buffer,
sp->compressed_size,
tif->tif_rawcp,
tif->tif_rawcc);
if( ZSTD_isError(zstd_ret) ) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error in ZSTD_decompress(): %s",
ZSTD_getErrorName(zstd_ret));
return 0;
}
lerc_data = sp->compressed_buffer;
lerc_data_size = (unsigned int)zstd_ret;
#else
TIFFErrorExt(tif->tif_clientdata, module, "ZSTD support missing");
return 0;
#endif
}
else if( sp->additional_compression != LERC_ADD_COMPRESSION_NONE )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Unhandled additional compression");
return 0;
}
lerc_ret = lerc_getBlobInfo(
lerc_data,
lerc_data_size,
infoArray,
NULL,
8,
0);
if( lerc_ret != 0 )
{
TIFFErrorExt(tif->tif_clientdata, module,
"lerc_getBlobInfo() failed");
return 0;
}
/* If the configuration is compatible of a LERC mask, and that the */
/* LERC info has dim == samplesperpixel - 1, then there is a LERC */
/* mask. */
if( td->td_planarconfig == PLANARCONFIG_CONTIG &&
td->td_extrasamples > 0 &&
td->td_sampleinfo[td->td_extrasamples-1] == EXTRASAMPLE_UNASSALPHA &&
GetLercDataType(tif) == 1 &&
infoArray[2] == td->td_samplesperpixel - 1U )
{
use_mask = 1;
nomask_bands --;
}
ndims = td->td_planarconfig == PLANARCONFIG_CONTIG ?
nomask_bands : 1;
/* Info returned in infoArray is { version, dataType, nDim, nCols,
nRows, nBands, nValidPixels, blobSize } */
if( infoArray[0] != (unsigned)sp->lerc_version )
{
TIFFWarningExt(tif->tif_clientdata, module,
"Unexpected version number: %d. Expected: %d",
infoArray[0], sp->lerc_version);
}
if( infoArray[1] != (unsigned)lerc_data_type )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Unexpected dataType: %d. Expected: %d",
infoArray[1], lerc_data_type);
return 0;
}
if( infoArray[2] != (unsigned)ndims )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Unexpected nDim: %d. Expected: %d",
infoArray[2], ndims);
return 0;
}
if( infoArray[3] != sp->segment_width )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Unexpected nCols: %d. Expected: %du",
infoArray[3], sp->segment_width);
return 0;
}
if( infoArray[4] != sp->segment_height )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Unexpected nRows: %d. Expected: %u",
infoArray[4], sp->segment_height);
return 0;
}
if( infoArray[5] != 1 )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Unexpected nBands: %d. Expected: %d",
infoArray[5], 1);
return 0;
}
if( infoArray[7] != lerc_data_size )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Unexpected blobSize: %d. Expected: %u",
infoArray[7],
lerc_data_size);
return 0;
}
lerc_ret = lerc_decode(
lerc_data,
lerc_data_size,
use_mask ? sp->mask_buffer : NULL,
ndims,
sp->segment_width,
sp->segment_height,
1,
lerc_data_type,
sp->uncompressed_buffer);
if( lerc_ret != 0 )
{
TIFFErrorExt(tif->tif_clientdata, module,
"lerc_decode() failed");
return 0;
}
/* Interleave alpha mask with other samples. */
if( use_mask )
{
unsigned src_stride =
(td->td_samplesperpixel - 1) * (td->td_bitspersample / 8);
unsigned dst_stride =
td->td_samplesperpixel * (td->td_bitspersample / 8);
unsigned i = sp->segment_width * sp->segment_height;
/* Operate from end to begin to be able to move in place */
while( i > 0 && i > nomask_bands )
{
i --;
sp->uncompressed_buffer[
i * dst_stride + td->td_samplesperpixel - 1] =
255 * sp->mask_buffer[i];
memcpy( sp->uncompressed_buffer + i * dst_stride,
sp->uncompressed_buffer + i * src_stride,
src_stride );
}
/* First pixels must use memmove due to overlapping areas */
while( i > 0 )
{
i --;
sp->uncompressed_buffer[
i * dst_stride + td->td_samplesperpixel - 1] =
255 * sp->mask_buffer[i];
memmove( sp->uncompressed_buffer + i * dst_stride,
sp->uncompressed_buffer + i * src_stride,
src_stride );
}
}
return 1;
}
/*
* Read the specified strip and setup for decoding. The data buffer is
* expanded, as necessary, to hold the strip's data.
*/
int
TIFFFillStrip(TIFF* tif, uint32 strip)
{
static const char module[] = "TIFFFillStrip";
TIFFDirectory *td = &tif->tif_dir;
if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount)
return 0;
if ((tif->tif_flags&TIFF_NOREADRAW)==0)
{
uint64 bytecount = td->td_stripbytecount[strip];
if ((int64)bytecount <= 0) {
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFErrorExt(tif->tif_clientdata, module,
"Invalid strip byte count %I64u, strip %lu",
(unsigned __int64) bytecount,
(unsigned long) strip);
#else
TIFFErrorExt(tif->tif_clientdata, module,
"Invalid strip byte count %llu, strip %lu",
(unsigned long long) bytecount,
(unsigned long) strip);
#endif
return (0);
}
/* To avoid excessive memory allocations: */
/* Byte count should normally not be larger than a number of */
/* times the uncompressed size plus some margin */
if( bytecount > 1024 * 1024 )
{
/* 10 and 4096 are just values that could be adjusted. */
/* Hopefully they are safe enough for all codecs */
tmsize_t stripsize = TIFFStripSize(tif);
if( stripsize != 0 &&
(bytecount - 4096) / 10 > (uint64)stripsize )
{
uint64 newbytecount = (uint64)stripsize * 10 + 4096;
if( (int64)newbytecount >= 0 )
{
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFWarningExt(tif->tif_clientdata, module,
"Too large strip byte count %I64u, strip %lu. Limiting to %I64u",
(unsigned __int64) bytecount,
(unsigned long) strip,
(unsigned __int64) newbytecount);
#else
TIFFErrorExt(tif->tif_clientdata, module,
"Too large strip byte count %llu, strip %lu. Limiting to %llu",
(unsigned long long) bytecount,
(unsigned long) strip,
(unsigned long long) newbytecount);
#endif
bytecount = newbytecount;
}
}
}
if (isMapped(tif)) {
/*
* We must check for overflow, potentially causing
* an OOB read. Instead of simple
*
* td->td_stripoffset[strip]+bytecount > tif->tif_size
*
* comparison (which can overflow) we do the following
* two comparisons:
*/
if (bytecount > (uint64)tif->tif_size ||
td->td_stripoffset[strip] > (uint64)tif->tif_size - bytecount) {
/*
* This error message might seem strange, but
* it's what would happen if a read were done
* instead.
*/
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFErrorExt(tif->tif_clientdata, module,
"Read error on strip %lu; "
"got %I64u bytes, expected %I64u",
(unsigned long) strip,
(unsigned __int64) tif->tif_size - td->td_stripoffset[strip],
(unsigned __int64) bytecount);
#else
TIFFErrorExt(tif->tif_clientdata, module,
"Read error on strip %lu; "
"got %llu bytes, expected %llu",
(unsigned long) strip,
(unsigned long long) tif->tif_size - td->td_stripoffset[strip],
(unsigned long long) bytecount);
#endif
tif->tif_curstrip = NOSTRIP;
return (0);
}
}
if (isMapped(tif) &&
(isFillOrder(tif, td->td_fillorder)
|| (tif->tif_flags & TIFF_NOBITREV))) {
/*
* The image is mapped into memory and we either don't
* need to flip bits or the compression routine is
* going to handle this operation itself. In this
* case, avoid copying the raw data and instead just
* reference the data from the memory mapped file
* image. This assumes that the decompression
* routines do not modify the contents of the raw data
* buffer (if they try to, the application will get a
* fault since the file is mapped read-only).
*/
if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) {
_TIFFfree(tif->tif_rawdata);
tif->tif_rawdata = NULL;
tif->tif_rawdatasize = 0;
}
tif->tif_flags &= ~TIFF_MYBUFFER;
tif->tif_rawdatasize = (tmsize_t)bytecount;
tif->tif_rawdata = tif->tif_base + (tmsize_t)td->td_stripoffset[strip];
tif->tif_rawdataoff = 0;
tif->tif_rawdataloaded = (tmsize_t) bytecount;
/*
* When we have tif_rawdata reference directly into the memory mapped file
* we need to be pretty careful about how we use the rawdata. It is not
* a general purpose working buffer as it normally otherwise is. So we
* keep track of this fact to avoid using it improperly.
*/
tif->tif_flags |= TIFF_BUFFERMMAP;
} else {
/*
* Expand raw data buffer, if needed, to hold data
* strip coming from file (perhaps should set upper
* bound on the size of a buffer we'll use?).
*/
tmsize_t bytecountm;
bytecountm=(tmsize_t)bytecount;
if ((uint64)bytecountm!=bytecount)
{
TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
return(0);
}
if (bytecountm > tif->tif_rawdatasize) {
tif->tif_curstrip = NOSTRIP;
if ((tif->tif_flags & TIFF_MYBUFFER) == 0) {
TIFFErrorExt(tif->tif_clientdata, module,
"Data buffer too small to hold strip %lu",
(unsigned long) strip);
return (0);
}
}
if (tif->tif_flags&TIFF_BUFFERMMAP) {
tif->tif_curstrip = NOSTRIP;
tif->tif_rawdata = NULL;
tif->tif_rawdatasize = 0;
tif->tif_flags &= ~TIFF_BUFFERMMAP;
}
if( isMapped(tif) )
{
if (bytecountm > tif->tif_rawdatasize &&
!TIFFReadBufferSetup(tif, 0, bytecountm))
{
return (0);
}
if (TIFFReadRawStrip1(tif, strip, tif->tif_rawdata,
bytecountm, module) != bytecountm)
{
return (0);
}
}
else
{
if (TIFFReadRawStripOrTile2(tif, strip, 1,
bytecountm, module) != bytecountm)
{
return (0);
}
}
tif->tif_rawdataoff = 0;
tif->tif_rawdataloaded = bytecountm;
if (!isFillOrder(tif, td->td_fillorder) &&
(tif->tif_flags & TIFF_NOBITREV) == 0)
TIFFReverseBits(tif->tif_rawdata, bytecountm);
}
}
return (TIFFStartStrip(tif, strip));
}
static int
_TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap)
{
static const char module[] = "_TIFFVSetField";
TIFFDirectory* td = &tif->tif_dir;
int status = 1;
uint32 v32, i, v;
char* s;
switch (tag) {
case TIFFTAG_SUBFILETYPE:
td->td_subfiletype = va_arg(ap, uint32);
break;
case TIFFTAG_IMAGEWIDTH:
td->td_imagewidth = va_arg(ap, uint32);
break;
case TIFFTAG_IMAGELENGTH:
td->td_imagelength = va_arg(ap, uint32);
break;
case TIFFTAG_BITSPERSAMPLE:
td->td_bitspersample = (uint16) va_arg(ap, int);
/*
* If the data require post-decoding processing to byte-swap
* samples, set it up here. Note that since tags are required
* to be ordered, compression code can override this behaviour
* in the setup method if it wants to roll the post decoding
* work in with its normal work.
*/
if (tif->tif_flags & TIFF_SWAB) {
if (td->td_bitspersample == 8)
tif->tif_postdecode = _TIFFNoPostDecode;
else if (td->td_bitspersample == 16)
tif->tif_postdecode = _TIFFSwab16BitData;
else if (td->td_bitspersample == 24)
tif->tif_postdecode = _TIFFSwab24BitData;
else if (td->td_bitspersample == 32)
tif->tif_postdecode = _TIFFSwab32BitData;
else if (td->td_bitspersample == 64)
tif->tif_postdecode = _TIFFSwab64BitData;
else if (td->td_bitspersample == 128) /* two 64's */
tif->tif_postdecode = _TIFFSwab64BitData;
}
break;
case TIFFTAG_COMPRESSION:
v = va_arg(ap, uint32) & 0xffff;
/*
* If we're changing the compression scheme, the notify the
* previous module so that it can cleanup any state it's
* setup.
*/
if (TIFFFieldSet(tif, FIELD_COMPRESSION)) {
if (td->td_compression == v)
break;
(*tif->tif_cleanup)(tif);
tif->tif_flags &= ~TIFF_CODERSETUP;
}
/*
* Setup new compression routine state.
*/
if( (status = TIFFSetCompressionScheme(tif, v)) != 0 )
td->td_compression = (uint16) v;
else
status = 0;
break;
case TIFFTAG_PHOTOMETRIC:
td->td_photometric = (uint16) va_arg(ap, int);
break;
case TIFFTAG_THRESHHOLDING:
td->td_threshholding = (uint16) va_arg(ap, int);
break;
case TIFFTAG_FILLORDER:
v = va_arg(ap, uint32);
if (v != FILLORDER_LSB2MSB && v != FILLORDER_MSB2LSB)
goto badvalue;
td->td_fillorder = (uint16) v;
break;
case TIFFTAG_ORIENTATION:
v = va_arg(ap, uint32);
if (v < ORIENTATION_TOPLEFT || ORIENTATION_LEFTBOT < v)
goto badvalue;
else
td->td_orientation = (uint16) v;
break;
case TIFFTAG_SAMPLESPERPIXEL:
/* XXX should cross check -- e.g. if pallette, then 1 */
v = va_arg(ap, uint32);
if (v == 0)
goto badvalue;
td->td_samplesperpixel = (uint16) v;
break;
case TIFFTAG_ROWSPERSTRIP:
v32 = va_arg(ap, uint32);
if (v32 == 0)
goto badvalue32;
td->td_rowsperstrip = v32;
if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) {
td->td_tilelength = v32;
td->td_tilewidth = td->td_imagewidth;
}
break;
case TIFFTAG_MINSAMPLEVALUE:
td->td_minsamplevalue = (uint16) va_arg(ap, int);
break;
case TIFFTAG_MAXSAMPLEVALUE:
td->td_maxsamplevalue = (uint16) va_arg(ap, int);
break;
case TIFFTAG_SMINSAMPLEVALUE:
td->td_sminsamplevalue = va_arg(ap, double);
break;
case TIFFTAG_SMAXSAMPLEVALUE:
td->td_smaxsamplevalue = va_arg(ap, double);
break;
case TIFFTAG_XRESOLUTION:
td->td_xresolution = (float) va_arg(ap, double);
break;
case TIFFTAG_YRESOLUTION:
td->td_yresolution = (float) va_arg(ap, double);
break;
case TIFFTAG_PLANARCONFIG:
v = va_arg(ap, uint32);
if (v != PLANARCONFIG_CONTIG && v != PLANARCONFIG_SEPARATE)
goto badvalue;
td->td_planarconfig = (uint16) v;
break;
case TIFFTAG_XPOSITION:
td->td_xposition = (float) va_arg(ap, double);
break;
case TIFFTAG_YPOSITION:
td->td_yposition = (float) va_arg(ap, double);
break;
case TIFFTAG_RESOLUTIONUNIT:
v = va_arg(ap, uint32);
if (v < RESUNIT_NONE || RESUNIT_CENTIMETER < v)
goto badvalue;
td->td_resolutionunit = (uint16) v;
break;
case TIFFTAG_PAGENUMBER:
td->td_pagenumber[0] = (uint16) va_arg(ap, int);
td->td_pagenumber[1] = (uint16) va_arg(ap, int);
break;
case TIFFTAG_HALFTONEHINTS:
td->td_halftonehints[0] = (uint16) va_arg(ap, int);
td->td_halftonehints[1] = (uint16) va_arg(ap, int);
break;
case TIFFTAG_COLORMAP:
v32 = (uint32)(1L<<td->td_bitspersample);
_TIFFsetShortArray(&td->td_colormap[0], va_arg(ap, uint16*), v32);
_TIFFsetShortArray(&td->td_colormap[1], va_arg(ap, uint16*), v32);
_TIFFsetShortArray(&td->td_colormap[2], va_arg(ap, uint16*), v32);
break;
case TIFFTAG_EXTRASAMPLES:
if (!setExtraSamples(td, ap, &v))
goto badvalue;
break;
case TIFFTAG_MATTEING:
td->td_extrasamples = (uint16) (va_arg(ap, int) != 0);
if (td->td_extrasamples) {
uint16 sv = EXTRASAMPLE_ASSOCALPHA;
_TIFFsetShortArray(&td->td_sampleinfo, &sv, 1);
}
break;
case TIFFTAG_TILEWIDTH:
v32 = va_arg(ap, uint32);
if (v32 % 16) {
if (tif->tif_mode != O_RDONLY)
goto badvalue32;
TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
"Nonstandard tile width %d, convert file", v32);
}
td->td_tilewidth = v32;
tif->tif_flags |= TIFF_ISTILED;
break;
case TIFFTAG_TILELENGTH:
v32 = va_arg(ap, uint32);
if (v32 % 16) {
if (tif->tif_mode != O_RDONLY)
goto badvalue32;
TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
"Nonstandard tile length %d, convert file", v32);
}
td->td_tilelength = v32;
tif->tif_flags |= TIFF_ISTILED;
break;
case TIFFTAG_TILEDEPTH:
v32 = va_arg(ap, uint32);
if (v32 == 0)
goto badvalue32;
td->td_tiledepth = v32;
break;
case TIFFTAG_DATATYPE:
v = va_arg(ap, uint32);
switch (v) {
case DATATYPE_VOID: v = SAMPLEFORMAT_VOID; break;
case DATATYPE_INT: v = SAMPLEFORMAT_INT; break;
case DATATYPE_UINT: v = SAMPLEFORMAT_UINT; break;
case DATATYPE_IEEEFP: v = SAMPLEFORMAT_IEEEFP;break;
default: goto badvalue;
}
td->td_sampleformat = (uint16) v;
break;
case TIFFTAG_SAMPLEFORMAT:
v = va_arg(ap, uint32);
if (v < SAMPLEFORMAT_UINT || SAMPLEFORMAT_COMPLEXIEEEFP < v)
goto badvalue;
td->td_sampleformat = (uint16) v;
/* Try to fix up the SWAB function for complex data. */
if( td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT
&& td->td_bitspersample == 32
&& tif->tif_postdecode == _TIFFSwab32BitData )
tif->tif_postdecode = _TIFFSwab16BitData;
else if( (td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT
|| td->td_sampleformat == SAMPLEFORMAT_COMPLEXIEEEFP)
&& td->td_bitspersample == 64
&& tif->tif_postdecode == _TIFFSwab64BitData )
tif->tif_postdecode = _TIFFSwab32BitData;
break;
case TIFFTAG_IMAGEDEPTH:
td->td_imagedepth = va_arg(ap, uint32);
break;
case TIFFTAG_SUBIFD:
if ((tif->tif_flags & TIFF_INSUBIFD) == 0) {
td->td_nsubifd = (uint16) va_arg(ap, int);
_TIFFsetLongArray(&td->td_subifd, va_arg(ap, uint32*),
(long) td->td_nsubifd);
} else {
static int JBIGDecode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s)
{
struct jbg_dec_state decoder;
int decodeStatus = 0;
unsigned char* pImage = NULL;
unsigned long decodedSize;
(void) s;
if (isFillOrder(tif, tif->tif_dir.td_fillorder))
{
TIFFReverseBits(tif->tif_rawcp, tif->tif_rawcc);
}
jbg_dec_init(&decoder);
#if defined(HAVE_JBG_NEWLEN)
jbg_newlen(tif->tif_rawcp, (size_t)tif->tif_rawcc);
/*
* I do not check the return status of jbg_newlen because even if this
* function fails it does not necessarily mean that decoding the image
* will fail. It is generally only needed for received fax images
* that do not contain the actual length of the image in the BIE
* header. I do not log when an error occurs because that will cause
* problems when converting JBIG encoded TIFF's to
* PostScript. As long as the actual image length is contained in the
* BIE header jbg_dec_in should succeed.
*/
#endif /* HAVE_JBG_NEWLEN */
decodeStatus = jbg_dec_in(&decoder, (unsigned char*)tif->tif_rawcp,
(size_t)tif->tif_rawcc, NULL);
if (JBG_EOK != decodeStatus)
{
/*
* XXX: JBG_EN constant was defined in pre-2.0 releases of the
* JBIG-KIT. Since the 2.0 the error reporting functions were
* changed. We will handle both cases here.
*/
TIFFErrorExt(tif->tif_clientdata,
"JBIG", "Error (%d) decoding: %s",
decodeStatus,
#if defined(JBG_EN)
jbg_strerror(decodeStatus, JBG_EN)
#else
jbg_strerror(decodeStatus)
#endif
);
jbg_dec_free(&decoder);
return 0;
}
decodedSize = jbg_dec_getsize(&decoder);
if( (tmsize_t)decodedSize < size )
{
TIFFWarningExt(tif->tif_clientdata, "JBIG",
"Only decoded %lu bytes, whereas %lu requested",
decodedSize, (unsigned long)size);
}
else if( (tmsize_t)decodedSize > size )
{
TIFFErrorExt(tif->tif_clientdata, "JBIG",
"Decoded %lu bytes, whereas %lu were requested",
decodedSize, (unsigned long)size);
jbg_dec_free(&decoder);
return 0;
}
pImage = jbg_dec_getimage(&decoder, 0);
_TIFFmemcpy(buffer, pImage, decodedSize);
jbg_dec_free(&decoder);
tif->tif_rawcp += tif->tif_rawcc;
tif->tif_rawcc = 0;
return 1;
}
