diff options
Diffstat (limited to 'src/libtiff/tif_strip.c')
| -rw-r--r-- | src/libtiff/tif_strip.c | 85 |
1 files changed, 8 insertions, 77 deletions
diff --git a/src/libtiff/tif_strip.c b/src/libtiff/tif_strip.c index 0c4f3a0..e1d7875 100644 --- a/src/libtiff/tif_strip.c +++ b/src/libtiff/tif_strip.c @@ -1,4 +1,4 @@ -/* $Id: tif_strip.c,v 1.3 2009/12/11 15:17:41 scuri Exp $ */ +/* $Id: tif_strip.c,v 1.4 2010/01/26 15:56:36 scuri Exp $ */ /* * Copyright (c) 1991-1997 Sam Leffler @@ -121,12 +121,12 @@ TIFFVStripSize(TIFF* tif, uint32 nrows) * horizontal/vertical subsampling area include * YCbCr data for the extended image. */ - uint16 ycbcrsubsampling[2]; - tsize_t w, scanline, samplingarea; + uint16 ycbcrsubsampling[2]; + tsize_t w, scanline, samplingarea; - TIFFGetField( tif, TIFFTAG_YCBCRSUBSAMPLING, - ycbcrsubsampling + 0, - ycbcrsubsampling + 1 ); + TIFFGetField( tif, TIFFTAG_YCBCRSUBSAMPLING, + ycbcrsubsampling + 0, + ycbcrsubsampling + 1 ); samplingarea = ycbcrsubsampling[0]*ycbcrsubsampling[1]; if (samplingarea == 0) { @@ -228,13 +228,13 @@ TIFFScanlineSize(TIFF* tif) { TIFFDirectory *td = &tif->tif_dir; tsize_t scanline; - + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { if (td->td_photometric == PHOTOMETRIC_YCBCR && !isUpSampled(tif)) { uint16 ycbcrsubsampling[2]; - TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, + TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, ycbcrsubsampling + 0, ycbcrsubsampling + 1); @@ -268,75 +268,6 @@ TIFFScanlineSize(TIFF* tif) } /* - * Some stuff depends on this older version of TIFFScanlineSize - * TODO: resolve this - */ -tsize_t -TIFFOldScanlineSize(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - tsize_t scanline; - - scanline = multiply (tif, td->td_bitspersample, td->td_imagewidth, - "TIFFScanlineSize"); - if (td->td_planarconfig == PLANARCONFIG_CONTIG) - scanline = multiply (tif, scanline, td->td_samplesperpixel, - "TIFFScanlineSize"); - return ((tsize_t) TIFFhowmany8(scanline)); -} - -/* - * Return the number of bytes to read/write in a call to - * one of the scanline-oriented i/o routines. Note that - * this number may be 1/samples-per-pixel if data is - * stored as separate planes. - * The ScanlineSize in case of YCbCrSubsampling is defined as the - * strip size divided by the strip height, i.e. the size of a pack of vertical - * subsampling lines divided by vertical subsampling. It should thus make - * sense when multiplied by a multiple of vertical subsampling. - * Some stuff depends on this newer version of TIFFScanlineSize - * TODO: resolve this - */ -tsize_t -TIFFNewScanlineSize(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - tsize_t scanline; - - if (td->td_planarconfig == PLANARCONFIG_CONTIG) { - if (td->td_photometric == PHOTOMETRIC_YCBCR - && !isUpSampled(tif)) { - uint16 ycbcrsubsampling[2]; - - TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, - ycbcrsubsampling + 0, - ycbcrsubsampling + 1); - - if (ycbcrsubsampling[0]*ycbcrsubsampling[1] == 0) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Invalid YCbCr subsampling"); - return 0; - } - - return((tsize_t) ((((td->td_imagewidth+ycbcrsubsampling[0]-1) - /ycbcrsubsampling[0]) - *(ycbcrsubsampling[0]*ycbcrsubsampling[1]+2) - *td->td_bitspersample+7) - /8)/ycbcrsubsampling[1]); - - } else { - scanline = multiply(tif, td->td_imagewidth, - td->td_samplesperpixel, - "TIFFScanlineSize"); - } - } else - scanline = td->td_imagewidth; - return ((tsize_t) TIFFhowmany8(multiply(tif, scanline, - td->td_bitspersample, - "TIFFScanlineSize"))); -} - -/* * Return the number of bytes required to store a complete * decoded and packed raster scanline (as opposed to the * I/O size returned by TIFFScanlineSize which may be less |