diff options
Diffstat (limited to 'jpeg/jcmaster.c')
| -rw-r--r-- | jpeg/jcmaster.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/jpeg/jcmaster.c b/jpeg/jcmaster.c index 43d49aec4..89dcf78c2 100644 --- a/jpeg/jcmaster.c +++ b/jpeg/jcmaster.c @@ -2,7 +2,7 @@ * jcmaster.c * * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2003-2017 by Guido Vollbeding. + * Modified 2003-2019 by Guido Vollbeding. * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README file. * @@ -62,7 +62,7 @@ initial_setup (j_compress_ptr cinfo) case 5: cinfo->natural_order = jpeg_natural_order5; break; case 6: cinfo->natural_order = jpeg_natural_order6; break; case 7: cinfo->natural_order = jpeg_natural_order7; break; - default: cinfo->natural_order = jpeg_natural_order; break; + default: cinfo->natural_order = jpeg_natural_order; } /* Derive lim_Se from block_size */ @@ -114,20 +114,24 @@ initial_setup (j_compress_ptr cinfo) */ ssize = 1; #ifdef DCT_SCALING_SUPPORTED - while (cinfo->min_DCT_h_scaled_size * ssize <= - (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } + if (! cinfo->raw_data_in) + while (cinfo->min_DCT_h_scaled_size * ssize <= + (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && + (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == + 0) { + ssize = ssize * 2; + } #endif compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size * ssize; ssize = 1; #ifdef DCT_SCALING_SUPPORTED - while (cinfo->min_DCT_v_scaled_size * ssize <= - (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } + if (! cinfo->raw_data_in) + while (cinfo->min_DCT_v_scaled_size * ssize <= + (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && + (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == + 0) { + ssize = ssize * 2; + } #endif compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size * ssize; @@ -620,9 +624,8 @@ jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only) { my_master_ptr master; - master = (my_master_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_comp_master)); + master = (my_master_ptr) (*cinfo->mem->alloc_small) + ((j_common_ptr) cinfo, JPOOL_IMAGE, SIZEOF(my_comp_master)); cinfo->master = &master->pub; master->pub.prepare_for_pass = prepare_for_pass; master->pub.pass_startup = pass_startup; |