diff options
Diffstat (limited to 'third_party/libtiff/tif_jpeg.c')
| -rw-r--r-- | third_party/libtiff/tif_jpeg.c | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/third_party/libtiff/tif_jpeg.c b/third_party/libtiff/tif_jpeg.c index 4f154a7c2b..df06e03fab 100644 --- a/third_party/libtiff/tif_jpeg.c +++ b/third_party/libtiff/tif_jpeg.c @@ -1,4 +1,4 @@ -/* $Id: tif_jpeg.c,v 1.123 2016-01-23 21:20:34 erouault Exp $ */ +/* $Id: tif_jpeg.c,v 1.127 2017-01-31 13:02:27 erouault Exp $ */ /* * Copyright (c) 1994-1997 Sam Leffler @@ -705,9 +705,11 @@ static int JPEGFixupTags(TIFF* tif) { #ifdef CHECK_JPEG_YCBCR_SUBSAMPLING + JPEGState* sp = JState(tif); if ((tif->tif_dir.td_photometric==PHOTOMETRIC_YCBCR)&& (tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG)&& - (tif->tif_dir.td_samplesperpixel==3)) + (tif->tif_dir.td_samplesperpixel==3) && + !sp->ycbcrsampling_fetched) JPEGFixupTagsSubsampling(tif); #endif @@ -1634,19 +1636,19 @@ JPEGSetupEncode(TIFF* tif) case PHOTOMETRIC_YCBCR: sp->h_sampling = td->td_ycbcrsubsampling[0]; sp->v_sampling = td->td_ycbcrsubsampling[1]; - if( sp->h_sampling == 0 || sp->v_sampling == 0 ) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Invalig horizontal/vertical sampling value"); - return (0); - } - if( td->td_bitspersample > 16 ) - { - TIFFErrorExt(tif->tif_clientdata, module, - "BitsPerSample %d not allowed for JPEG", - td->td_bitspersample); - return (0); - } + if( sp->h_sampling == 0 || sp->v_sampling == 0 ) + { + TIFFErrorExt(tif->tif_clientdata, module, + "Invalig horizontal/vertical sampling value"); + return (0); + } + if( td->td_bitspersample > 16 ) + { + TIFFErrorExt(tif->tif_clientdata, module, + "BitsPerSample %d not allowed for JPEG", + td->td_bitspersample); + return (0); + } /* * A ReferenceBlackWhite field *must* be present since the @@ -2313,6 +2315,15 @@ static int JPEGInitializeLibJPEG( TIFF * tif, int decompress ) } else { if (!TIFFjpeg_create_compress(sp)) return (0); +#ifndef TIFF_JPEG_MAX_MEMORY_TO_USE +#define TIFF_JPEG_MAX_MEMORY_TO_USE (10 * 1024 * 1024) +#endif + /* Increase the max memory usable. This helps when creating files */ + /* with "big" tile, without using libjpeg temporary files. */ + /* For example a 512x512 tile with 3 bands */ + /* requires 1.5 MB which is above libjpeg 1MB default */ + if( sp->cinfo.c.mem->max_memory_to_use < TIFF_JPEG_MAX_MEMORY_TO_USE ) + sp->cinfo.c.mem->max_memory_to_use = TIFF_JPEG_MAX_MEMORY_TO_USE; } sp->cinfo_initialized = TRUE; |