//-----------------------------------------------------------------
// Read Parameters
//-----------------------------------------------------------------
int CgQUAD::Read(SStream *stream, Tag tag)
{ if (0 == mgg) gtfo("<rdim> needs mother gauge");
float pm;
char txt[128];
switch(tag) {
case 'bmap':
ReadStrip(stream,txdf);
return TAG_READ;
case 'rdim':
ReadString(txt,128,stream);
DecodeRDIM(txt);
return TAG_READ;
//--- rigth skew ------------
case 'rskw':
ReadFloat(&pm,stream);
quad[0].VT_Y += pm;
quad[3].VT_Y += pm;
return TAG_READ;
//--- left skew ------------
case 'lskw':
ReadFloat(&pm,stream);
quad[1].VT_Y += pm;
quad[2].VT_Y += pm;
return TAG_READ;
}
WARNINGLOG("Unknown Tag %s",TagToString(tag));
return TAG_IGNORED;
}
//----------------------------------------------------------------
// Read all parameters
//----------------------------------------------------------------
int VStrip::Read(SStream *str,Tag tag)
{ char txt[16];
switch (tag) {
//---- File name ----------------------
case 'file':
case 'bmap':
ReadStrip(str);
return TAG_READ;
//---- POSN position ------------------
case 'posn':
ReadPOSN(str);
return TAG_READ;
//--- PROJ projector ------------------
case 'proj':
ReadPROJ(str);
return TAG_READ;
}
TagToString(txt,tag);
WARNINGLOG("VStrip: <%s> tag ignored");
return TAG_IGNORED;
}
int ImagingLibTiffDecode(Imaging im, ImagingCodecState state, UINT8* buffer, Py_ssize_t bytes) {
TIFFSTATE *clientstate = (TIFFSTATE *)state->context;
char *filename = "tempfile.tif";
char *mode = "r";
TIFF *tiff;
/* buffer is the encoded file, bytes is the length of the encoded file */
/* it all ends up in state->buffer, which is a uint8* from Imaging.h */
TRACE(("in decoder: bytes %d\n", bytes));
TRACE(("State: count %d, state %d, x %d, y %d, ystep %d\n", state->count, state->state,
state->x, state->y, state->ystep));
TRACE(("State: xsize %d, ysize %d, xoff %d, yoff %d \n", state->xsize, state->ysize,
state->xoff, state->yoff));
TRACE(("State: bits %d, bytes %d \n", state->bits, state->bytes));
TRACE(("Buffer: %p: %c%c%c%c\n", buffer, (char)buffer[0], (char)buffer[1],(char)buffer[2], (char)buffer[3]));
TRACE(("State->Buffer: %c%c%c%c\n", (char)state->buffer[0], (char)state->buffer[1],(char)state->buffer[2], (char)state->buffer[3]));
TRACE(("Image: mode %s, type %d, bands: %d, xsize %d, ysize %d \n",
im->mode, im->type, im->bands, im->xsize, im->ysize));
TRACE(("Image: image8 %p, image32 %p, image %p, block %p \n",
im->image8, im->image32, im->image, im->block));
TRACE(("Image: pixelsize: %d, linesize %d \n",
im->pixelsize, im->linesize));
dump_state(clientstate);
clientstate->size = bytes;
clientstate->eof = clientstate->size;
clientstate->loc = 0;
clientstate->data = (tdata_t)buffer;
clientstate->flrealloc = 0;
dump_state(clientstate);
TIFFSetWarningHandler(NULL);
TIFFSetWarningHandlerExt(NULL);
if (clientstate->fp) {
TRACE(("Opening using fd: %d\n",clientstate->fp));
lseek(clientstate->fp,0,SEEK_SET); // Sometimes, I get it set to the end.
tiff = TIFFFdOpen(clientstate->fp, filename, mode);
} else {
TRACE(("Opening from string\n"));
tiff = TIFFClientOpen(filename, mode,
(thandle_t) clientstate,
_tiffReadProc, _tiffWriteProc,
_tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
_tiffMapProc, _tiffUnmapProc);
}
if (!tiff){
TRACE(("Error, didn't get the tiff\n"));
state->errcode = IMAGING_CODEC_BROKEN;
return -1;
}
if (clientstate->ifd){
int rv;
uint32 ifdoffset = clientstate->ifd;
TRACE(("reading tiff ifd %u\n", ifdoffset));
rv = TIFFSetSubDirectory(tiff, ifdoffset);
if (!rv){
TRACE(("error in TIFFSetSubDirectory"));
return -1;
}
}
if (TIFFIsTiled(tiff)) {
UINT32 x, y, tile_y, row_byte_size;
UINT32 tile_width, tile_length, current_tile_width;
UINT8 *new_data;
TIFFGetField(tiff, TIFFTAG_TILEWIDTH, &tile_width);
TIFFGetField(tiff, TIFFTAG_TILELENGTH, &tile_length);
// We could use TIFFTileSize, but for YCbCr data it returns subsampled data size
row_byte_size = (tile_width * state->bits + 7) / 8;
state->bytes = row_byte_size * tile_length;
/* overflow check for malloc */
if (state->bytes > INT_MAX - 1) {
state->errcode = IMAGING_CODEC_MEMORY;
TIFFClose(tiff);
return -1;
}
/* realloc to fit whole tile */
new_data = realloc (state->buffer, state->bytes);
if (!new_data) {
state->errcode = IMAGING_CODEC_MEMORY;
TIFFClose(tiff);
return -1;
}
state->buffer = new_data;
TRACE(("TIFFTileSize: %d\n", state->bytes));
for (y = state->yoff; y < state->ysize; y += tile_length) {
for (x = state->xoff; x < state->xsize; x += tile_width) {
if (ReadTile(tiff, x, y, (UINT32*) state->buffer) == -1) {
TRACE(("Decode Error, Tile at %dx%d\n", x, y));
state->errcode = IMAGING_CODEC_BROKEN;
TIFFClose(tiff);
return -1;
}
TRACE(("Read tile at %dx%d; \n\n", x, y));
current_tile_width = min(tile_width, state->xsize - x);
// iterate over each line in the tile and stuff data into image
for (tile_y = 0; tile_y < min(tile_length, state->ysize - y); tile_y++) {
TRACE(("Writing tile data at %dx%d using tile_width: %d; \n", tile_y + y, x, current_tile_width));
// UINT8 * bbb = state->buffer + tile_y * row_byte_size;
// TRACE(("chars: %x%x%x%x\n", ((UINT8 *)bbb)[0], ((UINT8 *)bbb)[1], ((UINT8 *)bbb)[2], ((UINT8 *)bbb)[3]));
state->shuffle((UINT8*) im->image[tile_y + y] + x * im->pixelsize,
state->buffer + tile_y * row_byte_size,
current_tile_width
);
}
}
}
} else {
UINT32 strip_row, row_byte_size;
UINT8 *new_data;
UINT32 rows_per_strip;
TIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &rows_per_strip);
TRACE(("RowsPerStrip: %u \n", rows_per_strip));
// We could use TIFFStripSize, but for YCbCr data it returns subsampled data size
row_byte_size = (state->xsize * state->bits + 7) / 8;
state->bytes = rows_per_strip * row_byte_size;
TRACE(("StripSize: %d \n", state->bytes));
/* realloc to fit whole strip */
new_data = realloc (state->buffer, state->bytes);
if (!new_data) {
state->errcode = IMAGING_CODEC_MEMORY;
TIFFClose(tiff);
return -1;
}
state->buffer = new_data;
for (; state->y < state->ysize; state->y += rows_per_strip) {
if (ReadStrip(tiff, state->y, (UINT32 *)state->buffer) == -1) {
TRACE(("Decode Error, strip %d\n", TIFFComputeStrip(tiff, state->y, 0)));
state->errcode = IMAGING_CODEC_BROKEN;
TIFFClose(tiff);
return -1;
}
TRACE(("Decoded strip for row %d \n", state->y));
// iterate over each row in the strip and stuff data into image
for (strip_row = 0; strip_row < min(rows_per_strip, state->ysize - state->y); strip_row++) {
TRACE(("Writing data into line %d ; \n", state->y + strip_row));
// UINT8 * bbb = state->buffer + strip_row * (state->bytes / rows_per_strip);
// TRACE(("chars: %x %x %x %x\n", ((UINT8 *)bbb)[0], ((UINT8 *)bbb)[1], ((UINT8 *)bbb)[2], ((UINT8 *)bbb)[3]));
state->shuffle((UINT8*) im->image[state->y + state->yoff + strip_row] +
state->xoff * im->pixelsize,
state->buffer + strip_row * row_byte_size,
state->xsize);
}
}
}
TIFFClose(tiff);
TRACE(("Done Decoding, Returning \n"));
// Returning -1 here to force ImageFile.load to break, rather than
// even think about looping back around.
return -1;
}
